101649561SJames Smart /******************************************************************* 201649561SJames Smart * This file is part of the Emulex Linux Device Driver for * 301649561SJames Smart * Fibre Channel Host Bus Adapters. * 4128bddacSJames Smart * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * 53e21d1cbSJames Smart * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 601649561SJames Smart * Copyright (C) 2004-2016 Emulex. All rights reserved. * 701649561SJames Smart * EMULEX and SLI are trademarks of Emulex. * 8d080abe0SJames Smart * www.broadcom.com * 901649561SJames Smart * Portions Copyright (C) 2004-2005 Christoph Hellwig * 1001649561SJames Smart * * 1101649561SJames Smart * This program is free software; you can redistribute it and/or * 1201649561SJames Smart * modify it under the terms of version 2 of the GNU General * 1301649561SJames Smart * Public License as published by the Free Software Foundation. * 1401649561SJames Smart * This program is distributed in the hope that it will be useful. * 1501649561SJames Smart * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 1601649561SJames Smart * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 1701649561SJames Smart * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 1801649561SJames Smart * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 1901649561SJames Smart * TO BE LEGALLY INVALID. See the GNU General Public License for * 2001649561SJames Smart * more details, a copy of which can be found in the file COPYING * 2101649561SJames Smart * included with this package. * 2201649561SJames Smart ********************************************************************/ 2301649561SJames Smart #include <linux/pci.h> 2401649561SJames Smart #include <linux/slab.h> 2501649561SJames Smart #include <linux/interrupt.h> 2601649561SJames Smart #include <linux/delay.h> 2701649561SJames Smart #include <asm/unaligned.h> 2801649561SJames Smart #include <linux/crc-t10dif.h> 2901649561SJames Smart #include <net/checksum.h> 3001649561SJames Smart 3101649561SJames Smart #include <scsi/scsi.h> 3201649561SJames Smart #include <scsi/scsi_device.h> 3301649561SJames Smart #include <scsi/scsi_eh.h> 3401649561SJames Smart #include <scsi/scsi_host.h> 3501649561SJames Smart #include <scsi/scsi_tcq.h> 3601649561SJames Smart #include <scsi/scsi_transport_fc.h> 3701649561SJames Smart #include <scsi/fc/fc_fs.h> 3801649561SJames Smart 3901649561SJames Smart #include <linux/nvme.h> 4001649561SJames Smart #include <linux/nvme-fc-driver.h> 4101649561SJames Smart #include <linux/nvme-fc.h> 4201649561SJames Smart #include "lpfc_version.h" 4301649561SJames Smart #include "lpfc_hw4.h" 4401649561SJames Smart #include "lpfc_hw.h" 4501649561SJames Smart #include "lpfc_sli.h" 4601649561SJames Smart #include "lpfc_sli4.h" 4701649561SJames Smart #include "lpfc_nl.h" 4801649561SJames Smart #include "lpfc_disc.h" 4901649561SJames Smart #include "lpfc.h" 5001649561SJames Smart #include "lpfc_nvme.h" 5101649561SJames Smart #include "lpfc_scsi.h" 5201649561SJames Smart #include "lpfc_logmsg.h" 5301649561SJames Smart #include "lpfc_crtn.h" 5401649561SJames Smart #include "lpfc_vport.h" 55bd2cdd5eSJames Smart #include "lpfc_debugfs.h" 5601649561SJames Smart 5701649561SJames Smart /* NVME initiator-based functions */ 5801649561SJames Smart 5901649561SJames Smart static struct lpfc_nvme_buf * 60cf1a1d3eSJames Smart lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, 61cf1a1d3eSJames Smart int expedite); 6201649561SJames Smart 6301649561SJames Smart static void 6401649561SJames Smart lpfc_release_nvme_buf(struct lpfc_hba *, struct lpfc_nvme_buf *); 6501649561SJames Smart 6681e6a637SJames Smart static struct nvme_fc_port_template lpfc_nvme_template; 6701649561SJames Smart 68fab2e466SColin Ian King static union lpfc_wqe128 lpfc_iread_cmd_template; 69fab2e466SColin Ian King static union lpfc_wqe128 lpfc_iwrite_cmd_template; 70fab2e466SColin Ian King static union lpfc_wqe128 lpfc_icmnd_cmd_template; 715fd11085SJames Smart 725fd11085SJames Smart /* Setup WQE templates for NVME IOs */ 735fd11085SJames Smart void 74fab2e466SColin Ian King lpfc_nvme_cmd_template(void) 755fd11085SJames Smart { 765fd11085SJames Smart union lpfc_wqe128 *wqe; 775fd11085SJames Smart 785fd11085SJames Smart /* IREAD template */ 795fd11085SJames Smart wqe = &lpfc_iread_cmd_template; 805fd11085SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe128)); 815fd11085SJames Smart 825fd11085SJames Smart /* Word 0, 1, 2 - BDE is variable */ 835fd11085SJames Smart 845fd11085SJames Smart /* Word 3 - cmd_buff_len, payload_offset_len is zero */ 855fd11085SJames Smart 865fd11085SJames Smart /* Word 4 - total_xfer_len is variable */ 875fd11085SJames Smart 885fd11085SJames Smart /* Word 5 - is zero */ 895fd11085SJames Smart 905fd11085SJames Smart /* Word 6 - ctxt_tag, xri_tag is variable */ 915fd11085SJames Smart 925fd11085SJames Smart /* Word 7 */ 935fd11085SJames Smart bf_set(wqe_cmnd, &wqe->fcp_iread.wqe_com, CMD_FCP_IREAD64_WQE); 945fd11085SJames Smart bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, PARM_READ_CHECK); 955fd11085SJames Smart bf_set(wqe_class, &wqe->fcp_iread.wqe_com, CLASS3); 965fd11085SJames Smart bf_set(wqe_ct, &wqe->fcp_iread.wqe_com, SLI4_CT_RPI); 975fd11085SJames Smart 985fd11085SJames Smart /* Word 8 - abort_tag is variable */ 995fd11085SJames Smart 1005fd11085SJames Smart /* Word 9 - reqtag is variable */ 1015fd11085SJames Smart 1025fd11085SJames Smart /* Word 10 - dbde, wqes is variable */ 1035fd11085SJames Smart bf_set(wqe_qosd, &wqe->fcp_iread.wqe_com, 0); 1045fd11085SJames Smart bf_set(wqe_nvme, &wqe->fcp_iread.wqe_com, 1); 1055fd11085SJames Smart bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ); 1065fd11085SJames Smart bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com, LPFC_WQE_LENLOC_WORD4); 1075fd11085SJames Smart bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0); 1085fd11085SJames Smart bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1); 1095fd11085SJames Smart 1105fd11085SJames Smart /* Word 11 - pbde is variable */ 1115fd11085SJames Smart bf_set(wqe_cmd_type, &wqe->fcp_iread.wqe_com, NVME_READ_CMD); 1125fd11085SJames Smart bf_set(wqe_cqid, &wqe->fcp_iread.wqe_com, LPFC_WQE_CQ_ID_DEFAULT); 1135fd11085SJames Smart bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1); 1145fd11085SJames Smart 1155fd11085SJames Smart /* Word 12 - is zero */ 1165fd11085SJames Smart 1175fd11085SJames Smart /* Word 13, 14, 15 - PBDE is variable */ 1185fd11085SJames Smart 1195fd11085SJames Smart /* IWRITE template */ 1205fd11085SJames Smart wqe = &lpfc_iwrite_cmd_template; 1215fd11085SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe128)); 1225fd11085SJames Smart 1235fd11085SJames Smart /* Word 0, 1, 2 - BDE is variable */ 1245fd11085SJames Smart 1255fd11085SJames Smart /* Word 3 - cmd_buff_len, payload_offset_len is zero */ 1265fd11085SJames Smart 1275fd11085SJames Smart /* Word 4 - total_xfer_len is variable */ 1285fd11085SJames Smart 1295fd11085SJames Smart /* Word 5 - initial_xfer_len is variable */ 1305fd11085SJames Smart 1315fd11085SJames Smart /* Word 6 - ctxt_tag, xri_tag is variable */ 1325fd11085SJames Smart 1335fd11085SJames Smart /* Word 7 */ 1345fd11085SJames Smart bf_set(wqe_cmnd, &wqe->fcp_iwrite.wqe_com, CMD_FCP_IWRITE64_WQE); 1355fd11085SJames Smart bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, PARM_READ_CHECK); 1365fd11085SJames Smart bf_set(wqe_class, &wqe->fcp_iwrite.wqe_com, CLASS3); 1375fd11085SJames Smart bf_set(wqe_ct, &wqe->fcp_iwrite.wqe_com, SLI4_CT_RPI); 1385fd11085SJames Smart 1395fd11085SJames Smart /* Word 8 - abort_tag is variable */ 1405fd11085SJames Smart 1415fd11085SJames Smart /* Word 9 - reqtag is variable */ 1425fd11085SJames Smart 1435fd11085SJames Smart /* Word 10 - dbde, wqes is variable */ 1445fd11085SJames Smart bf_set(wqe_qosd, &wqe->fcp_iwrite.wqe_com, 0); 1455fd11085SJames Smart bf_set(wqe_nvme, &wqe->fcp_iwrite.wqe_com, 1); 1465fd11085SJames Smart bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE); 1475fd11085SJames Smart bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_LENLOC_WORD4); 1485fd11085SJames Smart bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0); 1495fd11085SJames Smart bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1); 1505fd11085SJames Smart 1515fd11085SJames Smart /* Word 11 - pbde is variable */ 1525fd11085SJames Smart bf_set(wqe_cmd_type, &wqe->fcp_iwrite.wqe_com, NVME_WRITE_CMD); 1535fd11085SJames Smart bf_set(wqe_cqid, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_CQ_ID_DEFAULT); 1545fd11085SJames Smart bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1); 1555fd11085SJames Smart 1565fd11085SJames Smart /* Word 12 - is zero */ 1575fd11085SJames Smart 1585fd11085SJames Smart /* Word 13, 14, 15 - PBDE is variable */ 1595fd11085SJames Smart 1605fd11085SJames Smart /* ICMND template */ 1615fd11085SJames Smart wqe = &lpfc_icmnd_cmd_template; 1625fd11085SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe128)); 1635fd11085SJames Smart 1645fd11085SJames Smart /* Word 0, 1, 2 - BDE is variable */ 1655fd11085SJames Smart 1665fd11085SJames Smart /* Word 3 - payload_offset_len is variable */ 1675fd11085SJames Smart 1685fd11085SJames Smart /* Word 4, 5 - is zero */ 1695fd11085SJames Smart 1705fd11085SJames Smart /* Word 6 - ctxt_tag, xri_tag is variable */ 1715fd11085SJames Smart 1725fd11085SJames Smart /* Word 7 */ 1735fd11085SJames Smart bf_set(wqe_cmnd, &wqe->fcp_icmd.wqe_com, CMD_FCP_ICMND64_WQE); 1745fd11085SJames Smart bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0); 1755fd11085SJames Smart bf_set(wqe_class, &wqe->fcp_icmd.wqe_com, CLASS3); 1765fd11085SJames Smart bf_set(wqe_ct, &wqe->fcp_icmd.wqe_com, SLI4_CT_RPI); 1775fd11085SJames Smart 1785fd11085SJames Smart /* Word 8 - abort_tag is variable */ 1795fd11085SJames Smart 1805fd11085SJames Smart /* Word 9 - reqtag is variable */ 1815fd11085SJames Smart 1825fd11085SJames Smart /* Word 10 - dbde, wqes is variable */ 1835fd11085SJames Smart bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1); 1845fd11085SJames Smart bf_set(wqe_nvme, &wqe->fcp_icmd.wqe_com, 1); 1855fd11085SJames Smart bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_NONE); 1865fd11085SJames Smart bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com, LPFC_WQE_LENLOC_NONE); 1875fd11085SJames Smart bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0); 1885fd11085SJames Smart bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1); 1895fd11085SJames Smart 1905fd11085SJames Smart /* Word 11 */ 1915fd11085SJames Smart bf_set(wqe_cmd_type, &wqe->fcp_icmd.wqe_com, FCP_COMMAND); 1925fd11085SJames Smart bf_set(wqe_cqid, &wqe->fcp_icmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT); 1935fd11085SJames Smart bf_set(wqe_pbde, &wqe->fcp_icmd.wqe_com, 0); 1945fd11085SJames Smart 1955fd11085SJames Smart /* Word 12, 13, 14, 15 - is zero */ 1965fd11085SJames Smart } 1975fd11085SJames Smart 19801649561SJames Smart /** 19901649561SJames Smart * lpfc_nvme_create_queue - 20001649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 20101649561SJames Smart * @qidx: An cpu index used to affinitize IO queues and MSIX vectors. 20201649561SJames Smart * @handle: An opaque driver handle used in follow-up calls. 20301649561SJames Smart * 20401649561SJames Smart * Driver registers this routine to preallocate and initialize any 20501649561SJames Smart * internal data structures to bind the @qidx to its internal IO queues. 20601649561SJames Smart * A hardware queue maps (qidx) to a specific driver MSI-X vector/EQ/CQ/WQ. 20701649561SJames Smart * 20801649561SJames Smart * Return value : 20901649561SJames Smart * 0 - Success 21001649561SJames Smart * -EINVAL - Unsupported input value. 21101649561SJames Smart * -ENOMEM - Could not alloc necessary memory 21201649561SJames Smart **/ 21301649561SJames Smart static int 21401649561SJames Smart lpfc_nvme_create_queue(struct nvme_fc_local_port *pnvme_lport, 21501649561SJames Smart unsigned int qidx, u16 qsize, 21601649561SJames Smart void **handle) 21701649561SJames Smart { 21801649561SJames Smart struct lpfc_nvme_lport *lport; 21901649561SJames Smart struct lpfc_vport *vport; 22001649561SJames Smart struct lpfc_nvme_qhandle *qhandle; 22101649561SJames Smart char *str; 22201649561SJames Smart 223c3725bdcSJames Smart if (!pnvme_lport->private) 224c3725bdcSJames Smart return -ENOMEM; 225c3725bdcSJames Smart 22601649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 22701649561SJames Smart vport = lport->vport; 22801649561SJames Smart qhandle = kzalloc(sizeof(struct lpfc_nvme_qhandle), GFP_KERNEL); 22901649561SJames Smart if (qhandle == NULL) 23001649561SJames Smart return -ENOMEM; 23101649561SJames Smart 23201649561SJames Smart qhandle->cpu_id = smp_processor_id(); 23301649561SJames Smart qhandle->qidx = qidx; 23401649561SJames Smart /* 23501649561SJames Smart * NVME qidx == 0 is the admin queue, so both admin queue 23601649561SJames Smart * and first IO queue will use MSI-X vector and associated 23701649561SJames Smart * EQ/CQ/WQ at index 0. After that they are sequentially assigned. 23801649561SJames Smart */ 23901649561SJames Smart if (qidx) { 24001649561SJames Smart str = "IO "; /* IO queue */ 24101649561SJames Smart qhandle->index = ((qidx - 1) % 24201649561SJames Smart vport->phba->cfg_nvme_io_channel); 24301649561SJames Smart } else { 24401649561SJames Smart str = "ADM"; /* Admin queue */ 24501649561SJames Smart qhandle->index = qidx; 24601649561SJames Smart } 24701649561SJames Smart 248d58734f0SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME, 24901649561SJames Smart "6073 Binding %s HdwQueue %d (cpu %d) to " 25001649561SJames Smart "io_channel %d qhandle %p\n", str, 25101649561SJames Smart qidx, qhandle->cpu_id, qhandle->index, qhandle); 25201649561SJames Smart *handle = (void *)qhandle; 25301649561SJames Smart return 0; 25401649561SJames Smart } 25501649561SJames Smart 25601649561SJames Smart /** 25701649561SJames Smart * lpfc_nvme_delete_queue - 25801649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 25901649561SJames Smart * @qidx: An cpu index used to affinitize IO queues and MSIX vectors. 26001649561SJames Smart * @handle: An opaque driver handle from lpfc_nvme_create_queue 26101649561SJames Smart * 26201649561SJames Smart * Driver registers this routine to free 26301649561SJames Smart * any internal data structures to bind the @qidx to its internal 26401649561SJames Smart * IO queues. 26501649561SJames Smart * 26601649561SJames Smart * Return value : 26701649561SJames Smart * 0 - Success 26801649561SJames Smart * TODO: What are the failure codes. 26901649561SJames Smart **/ 27001649561SJames Smart static void 27101649561SJames Smart lpfc_nvme_delete_queue(struct nvme_fc_local_port *pnvme_lport, 27201649561SJames Smart unsigned int qidx, 27301649561SJames Smart void *handle) 27401649561SJames Smart { 27501649561SJames Smart struct lpfc_nvme_lport *lport; 27601649561SJames Smart struct lpfc_vport *vport; 27701649561SJames Smart 278c3725bdcSJames Smart if (!pnvme_lport->private) 279c3725bdcSJames Smart return; 280c3725bdcSJames Smart 28101649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 28201649561SJames Smart vport = lport->vport; 28301649561SJames Smart 28401649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME, 28501649561SJames Smart "6001 ENTER. lpfc_pnvme %p, qidx x%xi qhandle %p\n", 28601649561SJames Smart lport, qidx, handle); 28701649561SJames Smart kfree(handle); 28801649561SJames Smart } 28901649561SJames Smart 29001649561SJames Smart static void 29101649561SJames Smart lpfc_nvme_localport_delete(struct nvme_fc_local_port *localport) 29201649561SJames Smart { 29301649561SJames Smart struct lpfc_nvme_lport *lport = localport->private; 29401649561SJames Smart 295add9d6beSJames Smart lpfc_printf_vlog(lport->vport, KERN_INFO, LOG_NVME, 296add9d6beSJames Smart "6173 localport %p delete complete\n", 297add9d6beSJames Smart lport); 298add9d6beSJames Smart 29901649561SJames Smart /* release any threads waiting for the unreg to complete */ 30001649561SJames Smart complete(&lport->lport_unreg_done); 30101649561SJames Smart } 30201649561SJames Smart 30301649561SJames Smart /* lpfc_nvme_remoteport_delete 30401649561SJames Smart * 30501649561SJames Smart * @remoteport: Pointer to an nvme transport remoteport instance. 30601649561SJames Smart * 30701649561SJames Smart * This is a template downcall. NVME transport calls this function 30801649561SJames Smart * when it has completed the unregistration of a previously 30901649561SJames Smart * registered remoteport. 31001649561SJames Smart * 31101649561SJames Smart * Return value : 31201649561SJames Smart * None 31301649561SJames Smart */ 31401649561SJames Smart void 31501649561SJames Smart lpfc_nvme_remoteport_delete(struct nvme_fc_remote_port *remoteport) 31601649561SJames Smart { 31701649561SJames Smart struct lpfc_nvme_rport *rport = remoteport->private; 31801649561SJames Smart struct lpfc_vport *vport; 31901649561SJames Smart struct lpfc_nodelist *ndlp; 32001649561SJames Smart 32101649561SJames Smart ndlp = rport->ndlp; 32201649561SJames Smart if (!ndlp) 32301649561SJames Smart goto rport_err; 32401649561SJames Smart 32501649561SJames Smart vport = ndlp->vport; 32601649561SJames Smart if (!vport) 32701649561SJames Smart goto rport_err; 32801649561SJames Smart 32901649561SJames Smart /* Remove this rport from the lport's list - memory is owned by the 33001649561SJames Smart * transport. Remove the ndlp reference for the NVME transport before 3317a06dcd3SJames Smart * calling state machine to remove the node. 33201649561SJames Smart */ 33301649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 3343fd78355SJames Smart "6146 remoteport delete of remoteport %p\n", 33501649561SJames Smart remoteport); 3363fd78355SJames Smart spin_lock_irq(&vport->phba->hbalock); 337b15bd3e6SJames Smart 338b15bd3e6SJames Smart /* The register rebind might have occurred before the delete 339b15bd3e6SJames Smart * downcall. Guard against this race. 340b15bd3e6SJames Smart */ 341b15bd3e6SJames Smart if (ndlp->upcall_flags & NLP_WAIT_FOR_UNREG) { 3427a06dcd3SJames Smart ndlp->nrport = NULL; 34301466024SJames Smart ndlp->upcall_flags &= ~NLP_WAIT_FOR_UNREG; 344b15bd3e6SJames Smart } 3453fd78355SJames Smart spin_unlock_irq(&vport->phba->hbalock); 3463fd78355SJames Smart 3473fd78355SJames Smart /* Remove original register reference. The host transport 3483fd78355SJames Smart * won't reference this rport/remoteport any further. 3493fd78355SJames Smart */ 35001649561SJames Smart lpfc_nlp_put(ndlp); 35101649561SJames Smart 35201649561SJames Smart rport_err: 3533fd78355SJames Smart return; 35401649561SJames Smart } 35501649561SJames Smart 35601649561SJames Smart static void 35701649561SJames Smart lpfc_nvme_cmpl_gen_req(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, 35801649561SJames Smart struct lpfc_wcqe_complete *wcqe) 35901649561SJames Smart { 36001649561SJames Smart struct lpfc_vport *vport = cmdwqe->vport; 3614b056682SJames Smart struct lpfc_nvme_lport *lport; 36201649561SJames Smart uint32_t status; 36301649561SJames Smart struct nvmefc_ls_req *pnvme_lsreq; 36401649561SJames Smart struct lpfc_dmabuf *buf_ptr; 36501649561SJames Smart struct lpfc_nodelist *ndlp; 36601649561SJames Smart 36701649561SJames Smart pnvme_lsreq = (struct nvmefc_ls_req *)cmdwqe->context2; 36801649561SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK; 36966a210ffSJames Smart 37066a85155SJames Smart if (vport->localport) { 37166a85155SJames Smart lport = (struct lpfc_nvme_lport *)vport->localport->private; 37266a210ffSJames Smart if (lport) { 37366a210ffSJames Smart atomic_inc(&lport->fc4NvmeLsCmpls); 3744b056682SJames Smart if (status) { 3754b056682SJames Smart if (bf_get(lpfc_wcqe_c_xb, wcqe)) 3764b056682SJames Smart atomic_inc(&lport->cmpl_ls_xb); 3774b056682SJames Smart atomic_inc(&lport->cmpl_ls_err); 3784b056682SJames Smart } 37966a210ffSJames Smart } 38066a85155SJames Smart } 3814b056682SJames Smart 38201649561SJames Smart ndlp = (struct lpfc_nodelist *)cmdwqe->context1; 38301649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 38401649561SJames Smart "6047 nvme cmpl Enter " 385815a9c43SJames Smart "Data %p DID %x Xri: %x status %x reason x%x cmd:%p " 386815a9c43SJames Smart "lsreg:%p bmp:%p ndlp:%p\n", 38701649561SJames Smart pnvme_lsreq, ndlp ? ndlp->nlp_DID : 0, 38801649561SJames Smart cmdwqe->sli4_xritag, status, 389815a9c43SJames Smart (wcqe->parameter & 0xffff), 39001649561SJames Smart cmdwqe, pnvme_lsreq, cmdwqe->context3, ndlp); 39101649561SJames Smart 392bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME LS CMPL: xri x%x stat x%x parm x%x\n", 393bd2cdd5eSJames Smart cmdwqe->sli4_xritag, status, wcqe->parameter); 394bd2cdd5eSJames Smart 39501649561SJames Smart if (cmdwqe->context3) { 39601649561SJames Smart buf_ptr = (struct lpfc_dmabuf *)cmdwqe->context3; 39701649561SJames Smart lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 39801649561SJames Smart kfree(buf_ptr); 39901649561SJames Smart cmdwqe->context3 = NULL; 40001649561SJames Smart } 40101649561SJames Smart if (pnvme_lsreq->done) 40201649561SJames Smart pnvme_lsreq->done(pnvme_lsreq, status); 40301649561SJames Smart else 40401649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 40501649561SJames Smart "6046 nvme cmpl without done call back? " 40601649561SJames Smart "Data %p DID %x Xri: %x status %x\n", 40701649561SJames Smart pnvme_lsreq, ndlp ? ndlp->nlp_DID : 0, 40801649561SJames Smart cmdwqe->sli4_xritag, status); 40901649561SJames Smart if (ndlp) { 41001649561SJames Smart lpfc_nlp_put(ndlp); 41101649561SJames Smart cmdwqe->context1 = NULL; 41201649561SJames Smart } 41301649561SJames Smart lpfc_sli_release_iocbq(phba, cmdwqe); 41401649561SJames Smart } 41501649561SJames Smart 41601649561SJames Smart static int 41701649561SJames Smart lpfc_nvme_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp, 41801649561SJames Smart struct lpfc_dmabuf *inp, 41901649561SJames Smart struct nvmefc_ls_req *pnvme_lsreq, 42001649561SJames Smart void (*cmpl)(struct lpfc_hba *, struct lpfc_iocbq *, 42101649561SJames Smart struct lpfc_wcqe_complete *), 42201649561SJames Smart struct lpfc_nodelist *ndlp, uint32_t num_entry, 42301649561SJames Smart uint32_t tmo, uint8_t retry) 42401649561SJames Smart { 42501649561SJames Smart struct lpfc_hba *phba = vport->phba; 426205e8240SJames Smart union lpfc_wqe128 *wqe; 42701649561SJames Smart struct lpfc_iocbq *genwqe; 42801649561SJames Smart struct ulp_bde64 *bpl; 42901649561SJames Smart struct ulp_bde64 bde; 43001649561SJames Smart int i, rc, xmit_len, first_len; 43101649561SJames Smart 43201649561SJames Smart /* Allocate buffer for command WQE */ 43301649561SJames Smart genwqe = lpfc_sli_get_iocbq(phba); 43401649561SJames Smart if (genwqe == NULL) 43501649561SJames Smart return 1; 43601649561SJames Smart 43701649561SJames Smart wqe = &genwqe->wqe; 43801649561SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe)); 43901649561SJames Smart 44001649561SJames Smart genwqe->context3 = (uint8_t *)bmp; 44101649561SJames Smart genwqe->iocb_flag |= LPFC_IO_NVME_LS; 44201649561SJames Smart 44301649561SJames Smart /* Save for completion so we can release these resources */ 44401649561SJames Smart genwqe->context1 = lpfc_nlp_get(ndlp); 44501649561SJames Smart genwqe->context2 = (uint8_t *)pnvme_lsreq; 44601649561SJames Smart /* Fill in payload, bp points to frame payload */ 44701649561SJames Smart 44801649561SJames Smart if (!tmo) 44901649561SJames Smart /* FC spec states we need 3 * ratov for CT requests */ 45001649561SJames Smart tmo = (3 * phba->fc_ratov); 45101649561SJames Smart 45201649561SJames Smart /* For this command calculate the xmit length of the request bde. */ 45301649561SJames Smart xmit_len = 0; 45401649561SJames Smart first_len = 0; 45501649561SJames Smart bpl = (struct ulp_bde64 *)bmp->virt; 45601649561SJames Smart for (i = 0; i < num_entry; i++) { 45701649561SJames Smart bde.tus.w = bpl[i].tus.w; 45801649561SJames Smart if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64) 45901649561SJames Smart break; 46001649561SJames Smart xmit_len += bde.tus.f.bdeSize; 46101649561SJames Smart if (i == 0) 46201649561SJames Smart first_len = xmit_len; 46301649561SJames Smart } 46401649561SJames Smart 46501649561SJames Smart genwqe->rsvd2 = num_entry; 46601649561SJames Smart genwqe->hba_wqidx = 0; 46701649561SJames Smart 46801649561SJames Smart /* Words 0 - 2 */ 46901649561SJames Smart wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 47001649561SJames Smart wqe->generic.bde.tus.f.bdeSize = first_len; 47101649561SJames Smart wqe->generic.bde.addrLow = bpl[0].addrLow; 47201649561SJames Smart wqe->generic.bde.addrHigh = bpl[0].addrHigh; 47301649561SJames Smart 47401649561SJames Smart /* Word 3 */ 47501649561SJames Smart wqe->gen_req.request_payload_len = first_len; 47601649561SJames Smart 47701649561SJames Smart /* Word 4 */ 47801649561SJames Smart 47901649561SJames Smart /* Word 5 */ 48001649561SJames Smart bf_set(wqe_dfctl, &wqe->gen_req.wge_ctl, 0); 48101649561SJames Smart bf_set(wqe_si, &wqe->gen_req.wge_ctl, 1); 48201649561SJames Smart bf_set(wqe_la, &wqe->gen_req.wge_ctl, 1); 4838b361639SJames Smart bf_set(wqe_rctl, &wqe->gen_req.wge_ctl, FC_RCTL_ELS4_REQ); 48401649561SJames Smart bf_set(wqe_type, &wqe->gen_req.wge_ctl, FC_TYPE_NVME); 48501649561SJames Smart 48601649561SJames Smart /* Word 6 */ 48701649561SJames Smart bf_set(wqe_ctxt_tag, &wqe->gen_req.wqe_com, 48801649561SJames Smart phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]); 48901649561SJames Smart bf_set(wqe_xri_tag, &wqe->gen_req.wqe_com, genwqe->sli4_xritag); 49001649561SJames Smart 49101649561SJames Smart /* Word 7 */ 49201649561SJames Smart bf_set(wqe_tmo, &wqe->gen_req.wqe_com, (vport->phba->fc_ratov-1)); 49301649561SJames Smart bf_set(wqe_class, &wqe->gen_req.wqe_com, CLASS3); 49401649561SJames Smart bf_set(wqe_cmnd, &wqe->gen_req.wqe_com, CMD_GEN_REQUEST64_WQE); 49501649561SJames Smart bf_set(wqe_ct, &wqe->gen_req.wqe_com, SLI4_CT_RPI); 49601649561SJames Smart 49701649561SJames Smart /* Word 8 */ 49801649561SJames Smart wqe->gen_req.wqe_com.abort_tag = genwqe->iotag; 49901649561SJames Smart 50001649561SJames Smart /* Word 9 */ 50101649561SJames Smart bf_set(wqe_reqtag, &wqe->gen_req.wqe_com, genwqe->iotag); 50201649561SJames Smart 50301649561SJames Smart /* Word 10 */ 50401649561SJames Smart bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1); 50501649561SJames Smart bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ); 50601649561SJames Smart bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1); 50701649561SJames Smart bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE); 50801649561SJames Smart bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0); 50901649561SJames Smart 51001649561SJames Smart /* Word 11 */ 51101649561SJames Smart bf_set(wqe_cqid, &wqe->gen_req.wqe_com, LPFC_WQE_CQ_ID_DEFAULT); 51201649561SJames Smart bf_set(wqe_cmd_type, &wqe->gen_req.wqe_com, OTHER_COMMAND); 51301649561SJames Smart 51401649561SJames Smart 51501649561SJames Smart /* Issue GEN REQ WQE for NPORT <did> */ 51601649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 51701649561SJames Smart "6050 Issue GEN REQ WQE to NPORT x%x " 51801649561SJames Smart "Data: x%x x%x wq:%p lsreq:%p bmp:%p xmit:%d 1st:%d\n", 51901649561SJames Smart ndlp->nlp_DID, genwqe->iotag, 52001649561SJames Smart vport->port_state, 52101649561SJames Smart genwqe, pnvme_lsreq, bmp, xmit_len, first_len); 52201649561SJames Smart genwqe->wqe_cmpl = cmpl; 52301649561SJames Smart genwqe->iocb_cmpl = NULL; 52401649561SJames Smart genwqe->drvrTimeout = tmo + LPFC_DRVR_TIMEOUT; 52501649561SJames Smart genwqe->vport = vport; 52601649561SJames Smart genwqe->retry = retry; 52701649561SJames Smart 528bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME LS XMIT: xri x%x iotag x%x to x%06x\n", 529bd2cdd5eSJames Smart genwqe->sli4_xritag, genwqe->iotag, ndlp->nlp_DID); 530bd2cdd5eSJames Smart 53101649561SJames Smart rc = lpfc_sli4_issue_wqe(phba, LPFC_ELS_RING, genwqe); 532cd22d605SDick Kennedy if (rc) { 53301649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 53401649561SJames Smart "6045 Issue GEN REQ WQE to NPORT x%x " 53501649561SJames Smart "Data: x%x x%x\n", 53601649561SJames Smart ndlp->nlp_DID, genwqe->iotag, 53701649561SJames Smart vport->port_state); 53801649561SJames Smart lpfc_sli_release_iocbq(phba, genwqe); 53901649561SJames Smart return 1; 54001649561SJames Smart } 54101649561SJames Smart return 0; 54201649561SJames Smart } 54301649561SJames Smart 54401649561SJames Smart /** 54501649561SJames Smart * lpfc_nvme_ls_req - Issue an Link Service request 54601649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 54701649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 54801649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 54901649561SJames Smart * 55001649561SJames Smart * Driver registers this routine to handle any link service request 55101649561SJames Smart * from the nvme_fc transport to a remote nvme-aware port. 55201649561SJames Smart * 55301649561SJames Smart * Return value : 55401649561SJames Smart * 0 - Success 55501649561SJames Smart * TODO: What are the failure codes. 55601649561SJames Smart **/ 55701649561SJames Smart static int 55801649561SJames Smart lpfc_nvme_ls_req(struct nvme_fc_local_port *pnvme_lport, 55901649561SJames Smart struct nvme_fc_remote_port *pnvme_rport, 56001649561SJames Smart struct nvmefc_ls_req *pnvme_lsreq) 56101649561SJames Smart { 56201649561SJames Smart int ret = 0; 56301649561SJames Smart struct lpfc_nvme_lport *lport; 564815a9c43SJames Smart struct lpfc_nvme_rport *rport; 56501649561SJames Smart struct lpfc_vport *vport; 56601649561SJames Smart struct lpfc_nodelist *ndlp; 56701649561SJames Smart struct ulp_bde64 *bpl; 56801649561SJames Smart struct lpfc_dmabuf *bmp; 569ba43c4d0SJames Smart uint16_t ntype, nstate; 57001649561SJames Smart 57101649561SJames Smart /* there are two dma buf in the request, actually there is one and 57201649561SJames Smart * the second one is just the start address + cmd size. 57301649561SJames Smart * Before calling lpfc_nvme_gen_req these buffers need to be wrapped 57401649561SJames Smart * in a lpfc_dmabuf struct. When freeing we just free the wrapper 57501649561SJames Smart * because the nvem layer owns the data bufs. 57601649561SJames Smart * We do not have to break these packets open, we don't care what is in 57701649561SJames Smart * them. And we do not have to look at the resonse data, we only care 57801649561SJames Smart * that we got a response. All of the caring is going to happen in the 57901649561SJames Smart * nvme-fc layer. 58001649561SJames Smart */ 58101649561SJames Smart 58201649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 583815a9c43SJames Smart rport = (struct lpfc_nvme_rport *)pnvme_rport->private; 58466a210ffSJames Smart if (unlikely(!lport) || unlikely(!rport)) 58566a210ffSJames Smart return -EINVAL; 58666a210ffSJames Smart 58701649561SJames Smart vport = lport->vport; 58801649561SJames Smart 5891abcb371SDick Kennedy if (vport->load_flag & FC_UNLOADING) 5901abcb371SDick Kennedy return -ENODEV; 5911abcb371SDick Kennedy 592815a9c43SJames Smart /* Need the ndlp. It is stored in the driver's rport. */ 593815a9c43SJames Smart ndlp = rport->ndlp; 594ba43c4d0SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 595ba43c4d0SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 596815a9c43SJames Smart "6051 Remoteport %p, rport has invalid ndlp. " 597815a9c43SJames Smart "Failing LS Req\n", pnvme_rport); 598ba43c4d0SJames Smart return -ENODEV; 599ba43c4d0SJames Smart } 600ba43c4d0SJames Smart 601ba43c4d0SJames Smart /* The remote node has to be a mapped nvme target or an 602ba43c4d0SJames Smart * unmapped nvme initiator or it's an error. 603ba43c4d0SJames Smart */ 604ba43c4d0SJames Smart ntype = ndlp->nlp_type; 605ba43c4d0SJames Smart nstate = ndlp->nlp_state; 606ba43c4d0SJames Smart if ((ntype & NLP_NVME_TARGET && nstate != NLP_STE_MAPPED_NODE) || 607ba43c4d0SJames Smart (ntype & NLP_NVME_INITIATOR && nstate != NLP_STE_UNMAPPED_NODE)) { 608ba43c4d0SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 609ba43c4d0SJames Smart "6088 DID x%06x not ready for " 610ba43c4d0SJames Smart "IO. State x%x, Type x%x\n", 611ba43c4d0SJames Smart pnvme_rport->port_id, 612ba43c4d0SJames Smart ndlp->nlp_state, ndlp->nlp_type); 613ba43c4d0SJames Smart return -ENODEV; 61401649561SJames Smart } 61501649561SJames Smart bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 61601649561SJames Smart if (!bmp) { 61701649561SJames Smart 61801649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 61901649561SJames Smart "6044 Could not find node for DID %x\n", 62001649561SJames Smart pnvme_rport->port_id); 62101649561SJames Smart return 2; 62201649561SJames Smart } 62301649561SJames Smart INIT_LIST_HEAD(&bmp->list); 62401649561SJames Smart bmp->virt = lpfc_mbuf_alloc(vport->phba, MEM_PRI, &(bmp->phys)); 62501649561SJames Smart if (!bmp->virt) { 62601649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 62701649561SJames Smart "6042 Could not find node for DID %x\n", 62801649561SJames Smart pnvme_rport->port_id); 62901649561SJames Smart kfree(bmp); 63001649561SJames Smart return 3; 63101649561SJames Smart } 63201649561SJames Smart bpl = (struct ulp_bde64 *)bmp->virt; 63301649561SJames Smart bpl->addrHigh = le32_to_cpu(putPaddrHigh(pnvme_lsreq->rqstdma)); 63401649561SJames Smart bpl->addrLow = le32_to_cpu(putPaddrLow(pnvme_lsreq->rqstdma)); 63501649561SJames Smart bpl->tus.f.bdeFlags = 0; 63601649561SJames Smart bpl->tus.f.bdeSize = pnvme_lsreq->rqstlen; 63701649561SJames Smart bpl->tus.w = le32_to_cpu(bpl->tus.w); 63801649561SJames Smart bpl++; 63901649561SJames Smart 64001649561SJames Smart bpl->addrHigh = le32_to_cpu(putPaddrHigh(pnvme_lsreq->rspdma)); 64101649561SJames Smart bpl->addrLow = le32_to_cpu(putPaddrLow(pnvme_lsreq->rspdma)); 64201649561SJames Smart bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; 64301649561SJames Smart bpl->tus.f.bdeSize = pnvme_lsreq->rsplen; 64401649561SJames Smart bpl->tus.w = le32_to_cpu(bpl->tus.w); 64501649561SJames Smart 64601649561SJames Smart /* Expand print to include key fields. */ 64701649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 648815a9c43SJames Smart "6149 Issue LS Req to DID 0x%06x lport %p, rport %p " 649815a9c43SJames Smart "lsreq%p rqstlen:%d rsplen:%d %pad %pad\n", 650815a9c43SJames Smart ndlp->nlp_DID, 65101649561SJames Smart pnvme_lport, pnvme_rport, 65201649561SJames Smart pnvme_lsreq, pnvme_lsreq->rqstlen, 653825c6abbSArnd Bergmann pnvme_lsreq->rsplen, &pnvme_lsreq->rqstdma, 654825c6abbSArnd Bergmann &pnvme_lsreq->rspdma); 65501649561SJames Smart 65666a210ffSJames Smart atomic_inc(&lport->fc4NvmeLsRequests); 65701649561SJames Smart 65801649561SJames Smart /* Hardcode the wait to 30 seconds. Connections are failing otherwise. 65901649561SJames Smart * This code allows it all to work. 66001649561SJames Smart */ 66101649561SJames Smart ret = lpfc_nvme_gen_req(vport, bmp, pnvme_lsreq->rqstaddr, 66201649561SJames Smart pnvme_lsreq, lpfc_nvme_cmpl_gen_req, 66301649561SJames Smart ndlp, 2, 30, 0); 66401649561SJames Smart if (ret != WQE_SUCCESS) { 6654b056682SJames Smart atomic_inc(&lport->xmt_ls_err); 666815a9c43SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 66701649561SJames Smart "6052 EXIT. issue ls wqe failed lport %p, " 66801649561SJames Smart "rport %p lsreq%p Status %x DID %x\n", 66901649561SJames Smart pnvme_lport, pnvme_rport, pnvme_lsreq, 67001649561SJames Smart ret, ndlp->nlp_DID); 67101649561SJames Smart lpfc_mbuf_free(vport->phba, bmp->virt, bmp->phys); 67201649561SJames Smart kfree(bmp); 67301649561SJames Smart return ret; 67401649561SJames Smart } 67501649561SJames Smart 67601649561SJames Smart /* Stub in routine and return 0 for now. */ 67701649561SJames Smart return ret; 67801649561SJames Smart } 67901649561SJames Smart 68001649561SJames Smart /** 68101649561SJames Smart * lpfc_nvme_ls_abort - Issue an Link Service request 68201649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 68301649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 68401649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 68501649561SJames Smart * 68601649561SJames Smart * Driver registers this routine to handle any link service request 68701649561SJames Smart * from the nvme_fc transport to a remote nvme-aware port. 68801649561SJames Smart * 68901649561SJames Smart * Return value : 69001649561SJames Smart * 0 - Success 69101649561SJames Smart * TODO: What are the failure codes. 69201649561SJames Smart **/ 69301649561SJames Smart static void 69401649561SJames Smart lpfc_nvme_ls_abort(struct nvme_fc_local_port *pnvme_lport, 69501649561SJames Smart struct nvme_fc_remote_port *pnvme_rport, 69601649561SJames Smart struct nvmefc_ls_req *pnvme_lsreq) 69701649561SJames Smart { 69801649561SJames Smart struct lpfc_nvme_lport *lport; 69901649561SJames Smart struct lpfc_vport *vport; 70001649561SJames Smart struct lpfc_hba *phba; 70101649561SJames Smart struct lpfc_nodelist *ndlp; 70201649561SJames Smart LIST_HEAD(abort_list); 70301649561SJames Smart struct lpfc_sli_ring *pring; 70401649561SJames Smart struct lpfc_iocbq *wqe, *next_wqe; 70501649561SJames Smart 70601649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 70766a210ffSJames Smart if (unlikely(!lport)) 70866a210ffSJames Smart return; 70901649561SJames Smart vport = lport->vport; 71001649561SJames Smart phba = vport->phba; 71101649561SJames Smart 7123386f4bdSJames Smart if (vport->load_flag & FC_UNLOADING) 7133386f4bdSJames Smart return; 7143386f4bdSJames Smart 71501649561SJames Smart ndlp = lpfc_findnode_did(vport, pnvme_rport->port_id); 71601649561SJames Smart if (!ndlp) { 71701649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 71801649561SJames Smart "6049 Could not find node for DID %x\n", 71901649561SJames Smart pnvme_rport->port_id); 72001649561SJames Smart return; 72101649561SJames Smart } 72201649561SJames Smart 72301649561SJames Smart /* Expand print to include key fields. */ 72401649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 72501649561SJames Smart "6040 ENTER. lport %p, rport %p lsreq %p rqstlen:%d " 726825c6abbSArnd Bergmann "rsplen:%d %pad %pad\n", 72701649561SJames Smart pnvme_lport, pnvme_rport, 72801649561SJames Smart pnvme_lsreq, pnvme_lsreq->rqstlen, 729825c6abbSArnd Bergmann pnvme_lsreq->rsplen, &pnvme_lsreq->rqstdma, 730825c6abbSArnd Bergmann &pnvme_lsreq->rspdma); 73101649561SJames Smart 73201649561SJames Smart /* 73301649561SJames Smart * Lock the ELS ring txcmplq and build a local list of all ELS IOs 73401649561SJames Smart * that need an ABTS. The IOs need to stay on the txcmplq so that 73501649561SJames Smart * the abort operation completes them successfully. 73601649561SJames Smart */ 73701649561SJames Smart pring = phba->sli4_hba.nvmels_wq->pring; 73801649561SJames Smart spin_lock_irq(&phba->hbalock); 73901649561SJames Smart spin_lock(&pring->ring_lock); 74001649561SJames Smart list_for_each_entry_safe(wqe, next_wqe, &pring->txcmplq, list) { 74101649561SJames Smart /* Add to abort_list on on NDLP match. */ 74201649561SJames Smart if (lpfc_check_sli_ndlp(phba, pring, wqe, ndlp)) { 74301649561SJames Smart wqe->iocb_flag |= LPFC_DRIVER_ABORTED; 74401649561SJames Smart list_add_tail(&wqe->dlist, &abort_list); 74501649561SJames Smart } 74601649561SJames Smart } 74701649561SJames Smart spin_unlock(&pring->ring_lock); 74801649561SJames Smart spin_unlock_irq(&phba->hbalock); 74901649561SJames Smart 75001649561SJames Smart /* Abort the targeted IOs and remove them from the abort list. */ 75101649561SJames Smart list_for_each_entry_safe(wqe, next_wqe, &abort_list, dlist) { 7524b056682SJames Smart atomic_inc(&lport->xmt_ls_abort); 75301649561SJames Smart spin_lock_irq(&phba->hbalock); 75401649561SJames Smart list_del_init(&wqe->dlist); 75501649561SJames Smart lpfc_sli_issue_abort_iotag(phba, pring, wqe); 75601649561SJames Smart spin_unlock_irq(&phba->hbalock); 75701649561SJames Smart } 75801649561SJames Smart } 75901649561SJames Smart 76001649561SJames Smart /* Fix up the existing sgls for NVME IO. */ 7615fd11085SJames Smart static inline void 76201649561SJames Smart lpfc_nvme_adj_fcp_sgls(struct lpfc_vport *vport, 76301649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd, 76401649561SJames Smart struct nvmefc_fcp_req *nCmd) 76501649561SJames Smart { 7664e565cf0SJames Smart struct lpfc_hba *phba = vport->phba; 76701649561SJames Smart struct sli4_sge *sgl; 76801649561SJames Smart union lpfc_wqe128 *wqe; 76901649561SJames Smart uint32_t *wptr, *dptr; 77001649561SJames Smart 77101649561SJames Smart /* 7724e565cf0SJames Smart * Get a local pointer to the built-in wqe and correct 7734e565cf0SJames Smart * the cmd size to match NVME's 96 bytes and fix 7744e565cf0SJames Smart * the dma address. 7754e565cf0SJames Smart */ 7764e565cf0SJames Smart 777205e8240SJames Smart wqe = &lpfc_ncmd->cur_iocbq.wqe; 7784e565cf0SJames Smart 7794e565cf0SJames Smart /* 78001649561SJames Smart * Adjust the FCP_CMD and FCP_RSP DMA data and sge_len to 78101649561SJames Smart * match NVME. NVME sends 96 bytes. Also, use the 78201649561SJames Smart * nvme commands command and response dma addresses 78301649561SJames Smart * rather than the virtual memory to ease the restore 78401649561SJames Smart * operation. 78501649561SJames Smart */ 78601649561SJames Smart sgl = lpfc_ncmd->nvme_sgl; 78701649561SJames Smart sgl->sge_len = cpu_to_le32(nCmd->cmdlen); 7884e565cf0SJames Smart if (phba->cfg_nvme_embed_cmd) { 7894e565cf0SJames Smart sgl->addr_hi = 0; 7904e565cf0SJames Smart sgl->addr_lo = 0; 7914e565cf0SJames Smart 7924e565cf0SJames Smart /* Word 0-2 - NVME CMND IU (embedded payload) */ 7934e565cf0SJames Smart wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_IMMED; 7944e565cf0SJames Smart wqe->generic.bde.tus.f.bdeSize = 56; 7954e565cf0SJames Smart wqe->generic.bde.addrHigh = 0; 7964e565cf0SJames Smart wqe->generic.bde.addrLow = 64; /* Word 16 */ 7974e565cf0SJames Smart 7985fd11085SJames Smart /* Word 10 - dbde is 0, wqes is 1 in template */ 79901649561SJames Smart 80001649561SJames Smart /* 80101649561SJames Smart * Embed the payload in the last half of the WQE 80201649561SJames Smart * WQE words 16-30 get the NVME CMD IU payload 80301649561SJames Smart * 804b06a622fSJames Smart * WQE words 16-19 get payload Words 1-4 80501649561SJames Smart * WQE words 20-21 get payload Words 6-7 80601649561SJames Smart * WQE words 22-29 get payload Words 16-23 80701649561SJames Smart */ 808b06a622fSJames Smart wptr = &wqe->words[16]; /* WQE ptr */ 80901649561SJames Smart dptr = (uint32_t *)nCmd->cmdaddr; /* payload ptr */ 810b06a622fSJames Smart dptr++; /* Skip Word 0 in payload */ 81101649561SJames Smart 812b06a622fSJames Smart *wptr++ = *dptr++; /* Word 1 */ 81301649561SJames Smart *wptr++ = *dptr++; /* Word 2 */ 81401649561SJames Smart *wptr++ = *dptr++; /* Word 3 */ 81501649561SJames Smart *wptr++ = *dptr++; /* Word 4 */ 81601649561SJames Smart dptr++; /* Skip Word 5 in payload */ 81701649561SJames Smart *wptr++ = *dptr++; /* Word 6 */ 81801649561SJames Smart *wptr++ = *dptr++; /* Word 7 */ 81901649561SJames Smart dptr += 8; /* Skip Words 8-15 in payload */ 82001649561SJames Smart *wptr++ = *dptr++; /* Word 16 */ 82101649561SJames Smart *wptr++ = *dptr++; /* Word 17 */ 82201649561SJames Smart *wptr++ = *dptr++; /* Word 18 */ 82301649561SJames Smart *wptr++ = *dptr++; /* Word 19 */ 82401649561SJames Smart *wptr++ = *dptr++; /* Word 20 */ 82501649561SJames Smart *wptr++ = *dptr++; /* Word 21 */ 82601649561SJames Smart *wptr++ = *dptr++; /* Word 22 */ 82701649561SJames Smart *wptr = *dptr; /* Word 23 */ 8285fd11085SJames Smart } else { 8295fd11085SJames Smart sgl->addr_hi = cpu_to_le32(putPaddrHigh(nCmd->cmddma)); 8305fd11085SJames Smart sgl->addr_lo = cpu_to_le32(putPaddrLow(nCmd->cmddma)); 8315fd11085SJames Smart 8325fd11085SJames Smart /* Word 0-2 - NVME CMND IU Inline BDE */ 8335fd11085SJames Smart wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 8345fd11085SJames Smart wqe->generic.bde.tus.f.bdeSize = nCmd->cmdlen; 8355fd11085SJames Smart wqe->generic.bde.addrHigh = sgl->addr_hi; 8365fd11085SJames Smart wqe->generic.bde.addrLow = sgl->addr_lo; 8375fd11085SJames Smart 8385fd11085SJames Smart /* Word 10 */ 8395fd11085SJames Smart bf_set(wqe_dbde, &wqe->generic.wqe_com, 1); 8405fd11085SJames Smart bf_set(wqe_wqes, &wqe->generic.wqe_com, 0); 8415fd11085SJames Smart } 8425fd11085SJames Smart 8435fd11085SJames Smart sgl++; 8445fd11085SJames Smart 8455fd11085SJames Smart /* Setup the physical region for the FCP RSP */ 8465fd11085SJames Smart sgl->addr_hi = cpu_to_le32(putPaddrHigh(nCmd->rspdma)); 8475fd11085SJames Smart sgl->addr_lo = cpu_to_le32(putPaddrLow(nCmd->rspdma)); 8485fd11085SJames Smart sgl->word2 = le32_to_cpu(sgl->word2); 8495fd11085SJames Smart if (nCmd->sg_cnt) 8505fd11085SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 0); 8515fd11085SJames Smart else 8525fd11085SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 1); 8535fd11085SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 8545fd11085SJames Smart sgl->sge_len = cpu_to_le32(nCmd->rsplen); 85501649561SJames Smart } 85601649561SJames Smart 857bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 858bd2cdd5eSJames Smart static void 859bd2cdd5eSJames Smart lpfc_nvme_ktime(struct lpfc_hba *phba, 860bd2cdd5eSJames Smart struct lpfc_nvme_buf *lpfc_ncmd) 861bd2cdd5eSJames Smart { 862bd2cdd5eSJames Smart uint64_t seg1, seg2, seg3, seg4; 863c8a4ce0bSDick Kennedy uint64_t segsum; 864bd2cdd5eSJames Smart 865bd2cdd5eSJames Smart if (!lpfc_ncmd->ts_last_cmd || 866bd2cdd5eSJames Smart !lpfc_ncmd->ts_cmd_start || 867bd2cdd5eSJames Smart !lpfc_ncmd->ts_cmd_wqput || 868bd2cdd5eSJames Smart !lpfc_ncmd->ts_isr_cmpl || 869bd2cdd5eSJames Smart !lpfc_ncmd->ts_data_nvme) 870bd2cdd5eSJames Smart return; 871c8a4ce0bSDick Kennedy 872c8a4ce0bSDick Kennedy if (lpfc_ncmd->ts_data_nvme < lpfc_ncmd->ts_cmd_start) 873c8a4ce0bSDick Kennedy return; 874bd2cdd5eSJames Smart if (lpfc_ncmd->ts_cmd_start < lpfc_ncmd->ts_last_cmd) 875bd2cdd5eSJames Smart return; 876bd2cdd5eSJames Smart if (lpfc_ncmd->ts_cmd_wqput < lpfc_ncmd->ts_cmd_start) 877bd2cdd5eSJames Smart return; 878bd2cdd5eSJames Smart if (lpfc_ncmd->ts_isr_cmpl < lpfc_ncmd->ts_cmd_wqput) 879bd2cdd5eSJames Smart return; 880bd2cdd5eSJames Smart if (lpfc_ncmd->ts_data_nvme < lpfc_ncmd->ts_isr_cmpl) 881bd2cdd5eSJames Smart return; 882bd2cdd5eSJames Smart /* 883bd2cdd5eSJames Smart * Segment 1 - Time from Last FCP command cmpl is handed 884bd2cdd5eSJames Smart * off to NVME Layer to start of next command. 885bd2cdd5eSJames Smart * Segment 2 - Time from Driver receives a IO cmd start 886bd2cdd5eSJames Smart * from NVME Layer to WQ put is done on IO cmd. 887bd2cdd5eSJames Smart * Segment 3 - Time from Driver WQ put is done on IO cmd 888bd2cdd5eSJames Smart * to MSI-X ISR for IO cmpl. 889bd2cdd5eSJames Smart * Segment 4 - Time from MSI-X ISR for IO cmpl to when 890bd2cdd5eSJames Smart * cmpl is handled off to the NVME Layer. 891bd2cdd5eSJames Smart */ 892bd2cdd5eSJames Smart seg1 = lpfc_ncmd->ts_cmd_start - lpfc_ncmd->ts_last_cmd; 893c8a4ce0bSDick Kennedy if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 894c8a4ce0bSDick Kennedy seg1 = 0; 895bd2cdd5eSJames Smart 896bd2cdd5eSJames Smart /* Calculate times relative to start of IO */ 897bd2cdd5eSJames Smart seg2 = (lpfc_ncmd->ts_cmd_wqput - lpfc_ncmd->ts_cmd_start); 898c8a4ce0bSDick Kennedy segsum = seg2; 899c8a4ce0bSDick Kennedy seg3 = lpfc_ncmd->ts_isr_cmpl - lpfc_ncmd->ts_cmd_start; 900c8a4ce0bSDick Kennedy if (segsum > seg3) 901c8a4ce0bSDick Kennedy return; 902c8a4ce0bSDick Kennedy seg3 -= segsum; 903c8a4ce0bSDick Kennedy segsum += seg3; 904c8a4ce0bSDick Kennedy 905c8a4ce0bSDick Kennedy seg4 = lpfc_ncmd->ts_data_nvme - lpfc_ncmd->ts_cmd_start; 906c8a4ce0bSDick Kennedy if (segsum > seg4) 907c8a4ce0bSDick Kennedy return; 908c8a4ce0bSDick Kennedy seg4 -= segsum; 909c8a4ce0bSDick Kennedy 910bd2cdd5eSJames Smart phba->ktime_data_samples++; 911bd2cdd5eSJames Smart phba->ktime_seg1_total += seg1; 912bd2cdd5eSJames Smart if (seg1 < phba->ktime_seg1_min) 913bd2cdd5eSJames Smart phba->ktime_seg1_min = seg1; 914bd2cdd5eSJames Smart else if (seg1 > phba->ktime_seg1_max) 915bd2cdd5eSJames Smart phba->ktime_seg1_max = seg1; 916bd2cdd5eSJames Smart phba->ktime_seg2_total += seg2; 917bd2cdd5eSJames Smart if (seg2 < phba->ktime_seg2_min) 918bd2cdd5eSJames Smart phba->ktime_seg2_min = seg2; 919bd2cdd5eSJames Smart else if (seg2 > phba->ktime_seg2_max) 920bd2cdd5eSJames Smart phba->ktime_seg2_max = seg2; 921bd2cdd5eSJames Smart phba->ktime_seg3_total += seg3; 922bd2cdd5eSJames Smart if (seg3 < phba->ktime_seg3_min) 923bd2cdd5eSJames Smart phba->ktime_seg3_min = seg3; 924bd2cdd5eSJames Smart else if (seg3 > phba->ktime_seg3_max) 925bd2cdd5eSJames Smart phba->ktime_seg3_max = seg3; 926bd2cdd5eSJames Smart phba->ktime_seg4_total += seg4; 927bd2cdd5eSJames Smart if (seg4 < phba->ktime_seg4_min) 928bd2cdd5eSJames Smart phba->ktime_seg4_min = seg4; 929bd2cdd5eSJames Smart else if (seg4 > phba->ktime_seg4_max) 930bd2cdd5eSJames Smart phba->ktime_seg4_max = seg4; 931bd2cdd5eSJames Smart 932bd2cdd5eSJames Smart lpfc_ncmd->ts_last_cmd = 0; 933bd2cdd5eSJames Smart lpfc_ncmd->ts_cmd_start = 0; 934bd2cdd5eSJames Smart lpfc_ncmd->ts_cmd_wqput = 0; 935bd2cdd5eSJames Smart lpfc_ncmd->ts_isr_cmpl = 0; 936bd2cdd5eSJames Smart lpfc_ncmd->ts_data_nvme = 0; 937bd2cdd5eSJames Smart } 938bd2cdd5eSJames Smart #endif 939bd2cdd5eSJames Smart 94001649561SJames Smart /** 94101649561SJames Smart * lpfc_nvme_io_cmd_wqe_cmpl - Complete an NVME-over-FCP IO 94201649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 94301649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 94401649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 94501649561SJames Smart * 94601649561SJames Smart * Driver registers this routine as it io request handler. This 94701649561SJames Smart * routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq 94801649561SJames Smart * data structure to the rport indicated in @lpfc_nvme_rport. 94901649561SJames Smart * 95001649561SJames Smart * Return value : 95101649561SJames Smart * 0 - Success 95201649561SJames Smart * TODO: What are the failure codes. 95301649561SJames Smart **/ 95401649561SJames Smart static void 95501649561SJames Smart lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, 95601649561SJames Smart struct lpfc_wcqe_complete *wcqe) 95701649561SJames Smart { 95801649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd = 95901649561SJames Smart (struct lpfc_nvme_buf *)pwqeIn->context1; 96001649561SJames Smart struct lpfc_vport *vport = pwqeIn->vport; 96101649561SJames Smart struct nvmefc_fcp_req *nCmd; 96201649561SJames Smart struct nvme_fc_ersp_iu *ep; 96301649561SJames Smart struct nvme_fc_cmd_iu *cp; 96401649561SJames Smart struct lpfc_nvme_rport *rport; 96501649561SJames Smart struct lpfc_nodelist *ndlp; 966bbe3012bSJames Smart struct lpfc_nvme_fcpreq_priv *freqpriv; 9674b056682SJames Smart struct lpfc_nvme_lport *lport; 96866a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat; 96901649561SJames Smart unsigned long flags; 97066a210ffSJames Smart uint32_t code, status, idx; 97101649561SJames Smart uint16_t cid, sqhd, data; 97201649561SJames Smart uint32_t *ptr; 97301649561SJames Smart 97401649561SJames Smart /* Sanity check on return of outstanding command */ 97501649561SJames Smart if (!lpfc_ncmd || !lpfc_ncmd->nvmeCmd || !lpfc_ncmd->nrport) { 9764d5e789aSJames Smart if (!lpfc_ncmd) { 9774d5e789aSJames Smart lpfc_printf_vlog(vport, KERN_ERR, 9784d5e789aSJames Smart LOG_NODE | LOG_NVME_IOERR, 9794d5e789aSJames Smart "6071 Null lpfc_ncmd pointer. No " 9804d5e789aSJames Smart "release, skip completion\n"); 9814d5e789aSJames Smart return; 9824d5e789aSJames Smart } 9834d5e789aSJames Smart 98401649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 9854d5e789aSJames Smart "6066 Missing cmpl ptrs: lpfc_ncmd %p, " 9864d5e789aSJames Smart "nvmeCmd %p nrport %p\n", 9874d5e789aSJames Smart lpfc_ncmd, lpfc_ncmd->nvmeCmd, 9884d5e789aSJames Smart lpfc_ncmd->nrport); 9894d5e789aSJames Smart 9904d5e789aSJames Smart /* Release the lpfc_ncmd regardless of the missing elements. */ 9914d5e789aSJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 99201649561SJames Smart return; 99301649561SJames Smart } 99401649561SJames Smart nCmd = lpfc_ncmd->nvmeCmd; 99501649561SJames Smart rport = lpfc_ncmd->nrport; 9964b056682SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe); 99766a210ffSJames Smart 99866a85155SJames Smart if (vport->localport) { 9994b056682SJames Smart lport = (struct lpfc_nvme_lport *)vport->localport->private; 100066a210ffSJames Smart if (lport) { 100166a210ffSJames Smart idx = lpfc_ncmd->cur_iocbq.hba_wqidx; 100266a210ffSJames Smart cstat = &lport->cstat[idx]; 100366a210ffSJames Smart atomic_inc(&cstat->fc4NvmeIoCmpls); 100466a210ffSJames Smart if (status) { 10054b056682SJames Smart if (bf_get(lpfc_wcqe_c_xb, wcqe)) 10064b056682SJames Smart atomic_inc(&lport->cmpl_fcp_xb); 10074b056682SJames Smart atomic_inc(&lport->cmpl_fcp_err); 10084b056682SJames Smart } 100966a210ffSJames Smart } 101066a85155SJames Smart } 101101649561SJames Smart 1012bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME FCP CMPL: xri x%x stat x%x parm x%x\n", 1013bd2cdd5eSJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 10144b056682SJames Smart status, wcqe->parameter); 101501649561SJames Smart /* 101601649561SJames Smart * Catch race where our node has transitioned, but the 101701649561SJames Smart * transport is still transitioning. 101801649561SJames Smart */ 101901649561SJames Smart ndlp = rport->ndlp; 102001649561SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 102101649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 1022c154e750SJames Smart "6061 rport %p, DID x%06x node not ready.\n", 1023c154e750SJames Smart rport, rport->remoteport->port_id); 102401649561SJames Smart 102501649561SJames Smart ndlp = lpfc_findnode_did(vport, rport->remoteport->port_id); 102601649561SJames Smart if (!ndlp) { 102701649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 102801649561SJames Smart "6062 Ignoring NVME cmpl. No ndlp\n"); 102901649561SJames Smart goto out_err; 103001649561SJames Smart } 103101649561SJames Smart } 103201649561SJames Smart 103301649561SJames Smart code = bf_get(lpfc_wcqe_c_code, wcqe); 103401649561SJames Smart if (code == CQE_CODE_NVME_ERSP) { 103501649561SJames Smart /* For this type of CQE, we need to rebuild the rsp */ 103601649561SJames Smart ep = (struct nvme_fc_ersp_iu *)nCmd->rspaddr; 103701649561SJames Smart 103801649561SJames Smart /* 103901649561SJames Smart * Get Command Id from cmd to plug into response. This 104001649561SJames Smart * code is not needed in the next NVME Transport drop. 104101649561SJames Smart */ 104201649561SJames Smart cp = (struct nvme_fc_cmd_iu *)nCmd->cmdaddr; 104301649561SJames Smart cid = cp->sqe.common.command_id; 104401649561SJames Smart 104501649561SJames Smart /* 104601649561SJames Smart * RSN is in CQE word 2 104701649561SJames Smart * SQHD is in CQE Word 3 bits 15:0 104801649561SJames Smart * Cmd Specific info is in CQE Word 1 104901649561SJames Smart * and in CQE Word 0 bits 15:0 105001649561SJames Smart */ 105101649561SJames Smart sqhd = bf_get(lpfc_wcqe_c_sqhead, wcqe); 105201649561SJames Smart 105301649561SJames Smart /* Now lets build the NVME ERSP IU */ 105401649561SJames Smart ep->iu_len = cpu_to_be16(8); 105501649561SJames Smart ep->rsn = wcqe->parameter; 105601649561SJames Smart ep->xfrd_len = cpu_to_be32(nCmd->payload_length); 105701649561SJames Smart ep->rsvd12 = 0; 105801649561SJames Smart ptr = (uint32_t *)&ep->cqe.result.u64; 105901649561SJames Smart *ptr++ = wcqe->total_data_placed; 106001649561SJames Smart data = bf_get(lpfc_wcqe_c_ersp0, wcqe); 106101649561SJames Smart *ptr = (uint32_t)data; 106201649561SJames Smart ep->cqe.sq_head = sqhd; 106301649561SJames Smart ep->cqe.sq_id = nCmd->sqid; 106401649561SJames Smart ep->cqe.command_id = cid; 106501649561SJames Smart ep->cqe.status = 0; 106601649561SJames Smart 106701649561SJames Smart lpfc_ncmd->status = IOSTAT_SUCCESS; 106801649561SJames Smart lpfc_ncmd->result = 0; 106901649561SJames Smart nCmd->rcv_rsplen = LPFC_NVME_ERSP_LEN; 107001649561SJames Smart nCmd->transferred_length = nCmd->payload_length; 107101649561SJames Smart } else { 10724b056682SJames Smart lpfc_ncmd->status = (status & LPFC_IOCB_STATUS_MASK); 1073952c303bSDick Kennedy lpfc_ncmd->result = (wcqe->parameter & IOERR_PARAM_MASK); 107401649561SJames Smart 107501649561SJames Smart /* For NVME, the only failure path that results in an 107601649561SJames Smart * IO error is when the adapter rejects it. All other 107701649561SJames Smart * conditions are a success case and resolved by the 107801649561SJames Smart * transport. 107901649561SJames Smart * IOSTAT_FCP_RSP_ERROR means: 108001649561SJames Smart * 1. Length of data received doesn't match total 108101649561SJames Smart * transfer length in WQE 108201649561SJames Smart * 2. If the RSP payload does NOT match these cases: 108301649561SJames Smart * a. RSP length 12/24 bytes and all zeros 108401649561SJames Smart * b. NVME ERSP 108501649561SJames Smart */ 108601649561SJames Smart switch (lpfc_ncmd->status) { 108701649561SJames Smart case IOSTAT_SUCCESS: 108801649561SJames Smart nCmd->transferred_length = wcqe->total_data_placed; 108901649561SJames Smart nCmd->rcv_rsplen = 0; 109001649561SJames Smart nCmd->status = 0; 109101649561SJames Smart break; 109201649561SJames Smart case IOSTAT_FCP_RSP_ERROR: 109301649561SJames Smart nCmd->transferred_length = wcqe->total_data_placed; 109401649561SJames Smart nCmd->rcv_rsplen = wcqe->parameter; 109501649561SJames Smart nCmd->status = 0; 109601649561SJames Smart /* Sanity check */ 109701649561SJames Smart if (nCmd->rcv_rsplen == LPFC_NVME_ERSP_LEN) 109801649561SJames Smart break; 109901649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 110001649561SJames Smart "6081 NVME Completion Protocol Error: " 110186c67379SJames Smart "xri %x status x%x result x%x " 110286c67379SJames Smart "placed x%x\n", 110386c67379SJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 110401649561SJames Smart lpfc_ncmd->status, lpfc_ncmd->result, 110501649561SJames Smart wcqe->total_data_placed); 110601649561SJames Smart break; 1107952c303bSDick Kennedy case IOSTAT_LOCAL_REJECT: 1108952c303bSDick Kennedy /* Let fall through to set command final state. */ 1109952c303bSDick Kennedy if (lpfc_ncmd->result == IOERR_ABORT_REQUESTED) 1110952c303bSDick Kennedy lpfc_printf_vlog(vport, KERN_INFO, 1111952c303bSDick Kennedy LOG_NVME_IOERR, 1112952c303bSDick Kennedy "6032 Delay Aborted cmd %p " 1113952c303bSDick Kennedy "nvme cmd %p, xri x%x, " 1114952c303bSDick Kennedy "xb %d\n", 1115952c303bSDick Kennedy lpfc_ncmd, nCmd, 1116952c303bSDick Kennedy lpfc_ncmd->cur_iocbq.sli4_xritag, 1117952c303bSDick Kennedy bf_get(lpfc_wcqe_c_xb, wcqe)); 111801649561SJames Smart default: 111901649561SJames Smart out_err: 1120e3246a12SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 112186c67379SJames Smart "6072 NVME Completion Error: xri %x " 112201649561SJames Smart "status x%x result x%x placed x%x\n", 112386c67379SJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 112401649561SJames Smart lpfc_ncmd->status, lpfc_ncmd->result, 112501649561SJames Smart wcqe->total_data_placed); 112601649561SJames Smart nCmd->transferred_length = 0; 112701649561SJames Smart nCmd->rcv_rsplen = 0; 11288e009ce8SJames Smart nCmd->status = NVME_SC_INTERNAL; 112901649561SJames Smart } 113001649561SJames Smart } 113101649561SJames Smart 113201649561SJames Smart /* pick up SLI4 exhange busy condition */ 113301649561SJames Smart if (bf_get(lpfc_wcqe_c_xb, wcqe)) 113401649561SJames Smart lpfc_ncmd->flags |= LPFC_SBUF_XBUSY; 113501649561SJames Smart else 113601649561SJames Smart lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; 113701649561SJames Smart 113801649561SJames Smart if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 113901649561SJames Smart atomic_dec(&ndlp->cmd_pending); 114001649561SJames Smart 114101649561SJames Smart /* Update stats and complete the IO. There is 114201649561SJames Smart * no need for dma unprep because the nvme_transport 114301649561SJames Smart * owns the dma address. 114401649561SJames Smart */ 1145bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1146c8a4ce0bSDick Kennedy if (lpfc_ncmd->ts_cmd_start) { 1147bd2cdd5eSJames Smart lpfc_ncmd->ts_isr_cmpl = pwqeIn->isr_timestamp; 1148bd2cdd5eSJames Smart lpfc_ncmd->ts_data_nvme = ktime_get_ns(); 1149bd2cdd5eSJames Smart phba->ktime_last_cmd = lpfc_ncmd->ts_data_nvme; 1150bd2cdd5eSJames Smart lpfc_nvme_ktime(phba, lpfc_ncmd); 1151bd2cdd5eSJames Smart } 1152bd2cdd5eSJames Smart if (phba->cpucheck_on & LPFC_CHECK_NVME_IO) { 1153bd2cdd5eSJames Smart if (lpfc_ncmd->cpu != smp_processor_id()) 1154bd2cdd5eSJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 1155bd2cdd5eSJames Smart "6701 CPU Check cmpl: " 1156bd2cdd5eSJames Smart "cpu %d expect %d\n", 1157bd2cdd5eSJames Smart smp_processor_id(), lpfc_ncmd->cpu); 1158bd2cdd5eSJames Smart if (lpfc_ncmd->cpu < LPFC_CHECK_CPU_CNT) 1159bd2cdd5eSJames Smart phba->cpucheck_cmpl_io[lpfc_ncmd->cpu]++; 1160bd2cdd5eSJames Smart } 1161bd2cdd5eSJames Smart #endif 1162952c303bSDick Kennedy 1163952c303bSDick Kennedy /* NVME targets need completion held off until the abort exchange 1164add9d6beSJames Smart * completes unless the NVME Rport is getting unregistered. 1165952c303bSDick Kennedy */ 1166add9d6beSJames Smart 11673fd78355SJames Smart if (!(lpfc_ncmd->flags & LPFC_SBUF_XBUSY)) { 116891455b85SJames Smart freqpriv = nCmd->private; 116991455b85SJames Smart freqpriv->nvme_buf = NULL; 117001649561SJames Smart nCmd->done(nCmd); 11713fd78355SJames Smart lpfc_ncmd->nvmeCmd = NULL; 1172add9d6beSJames Smart } 117301649561SJames Smart 117401649561SJames Smart spin_lock_irqsave(&phba->hbalock, flags); 117501649561SJames Smart lpfc_ncmd->nrport = NULL; 117601649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 117701649561SJames Smart 1178952c303bSDick Kennedy /* Call release with XB=1 to queue the IO into the abort list. */ 117901649561SJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 118001649561SJames Smart } 118101649561SJames Smart 118201649561SJames Smart 118301649561SJames Smart /** 118401649561SJames Smart * lpfc_nvme_prep_io_cmd - Issue an NVME-over-FCP IO 118501649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 118601649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 118701649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 118801649561SJames Smart * @lpfc_nvme_fcreq: IO request from nvme fc to driver. 118901649561SJames Smart * @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue 119001649561SJames Smart * 119101649561SJames Smart * Driver registers this routine as it io request handler. This 119201649561SJames Smart * routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq 119301649561SJames Smart * data structure to the rport indicated in @lpfc_nvme_rport. 119401649561SJames Smart * 119501649561SJames Smart * Return value : 119601649561SJames Smart * 0 - Success 119701649561SJames Smart * TODO: What are the failure codes. 119801649561SJames Smart **/ 119901649561SJames Smart static int 120001649561SJames Smart lpfc_nvme_prep_io_cmd(struct lpfc_vport *vport, 120101649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd, 120266a210ffSJames Smart struct lpfc_nodelist *pnode, 120366a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat) 120401649561SJames Smart { 120501649561SJames Smart struct lpfc_hba *phba = vport->phba; 120601649561SJames Smart struct nvmefc_fcp_req *nCmd = lpfc_ncmd->nvmeCmd; 120701649561SJames Smart struct lpfc_iocbq *pwqeq = &(lpfc_ncmd->cur_iocbq); 1208205e8240SJames Smart union lpfc_wqe128 *wqe = &pwqeq->wqe; 120901649561SJames Smart uint32_t req_len; 121001649561SJames Smart 121101649561SJames Smart if (!pnode || !NLP_CHK_NODE_ACT(pnode)) 121201649561SJames Smart return -EINVAL; 121301649561SJames Smart 121401649561SJames Smart /* 121501649561SJames Smart * There are three possibilities here - use scatter-gather segment, use 121601649561SJames Smart * the single mapping, or neither. 121701649561SJames Smart */ 121801649561SJames Smart if (nCmd->sg_cnt) { 121901649561SJames Smart if (nCmd->io_dir == NVMEFC_FCP_WRITE) { 12205fd11085SJames Smart /* From the iwrite template, initialize words 7 - 11 */ 12215fd11085SJames Smart memcpy(&wqe->words[7], 12225fd11085SJames Smart &lpfc_iwrite_cmd_template.words[7], 12235fd11085SJames Smart sizeof(uint32_t) * 5); 12245fd11085SJames Smart 12255fd11085SJames Smart /* Word 4 */ 12265fd11085SJames Smart wqe->fcp_iwrite.total_xfer_len = nCmd->payload_length; 12275fd11085SJames Smart 122801649561SJames Smart /* Word 5 */ 122901649561SJames Smart if ((phba->cfg_nvme_enable_fb) && 123001649561SJames Smart (pnode->nlp_flag & NLP_FIRSTBURST)) { 123101649561SJames Smart req_len = lpfc_ncmd->nvmeCmd->payload_length; 123201649561SJames Smart if (req_len < pnode->nvme_fb_size) 123301649561SJames Smart wqe->fcp_iwrite.initial_xfer_len = 123401649561SJames Smart req_len; 123501649561SJames Smart else 123601649561SJames Smart wqe->fcp_iwrite.initial_xfer_len = 123701649561SJames Smart pnode->nvme_fb_size; 12385fd11085SJames Smart } else { 12395fd11085SJames Smart wqe->fcp_iwrite.initial_xfer_len = 0; 124001649561SJames Smart } 124166a210ffSJames Smart atomic_inc(&cstat->fc4NvmeOutputRequests); 124201649561SJames Smart } else { 12435fd11085SJames Smart /* From the iread template, initialize words 7 - 11 */ 12445fd11085SJames Smart memcpy(&wqe->words[7], 12455fd11085SJames Smart &lpfc_iread_cmd_template.words[7], 12465fd11085SJames Smart sizeof(uint32_t) * 5); 124701649561SJames Smart 12485fd11085SJames Smart /* Word 4 */ 12495fd11085SJames Smart wqe->fcp_iread.total_xfer_len = nCmd->payload_length; 125001649561SJames Smart 12515fd11085SJames Smart /* Word 5 */ 12525fd11085SJames Smart wqe->fcp_iread.rsrvd5 = 0; 125301649561SJames Smart 125466a210ffSJames Smart atomic_inc(&cstat->fc4NvmeInputRequests); 125501649561SJames Smart } 125601649561SJames Smart } else { 12575fd11085SJames Smart /* From the icmnd template, initialize words 4 - 11 */ 12585fd11085SJames Smart memcpy(&wqe->words[4], &lpfc_icmnd_cmd_template.words[4], 12595fd11085SJames Smart sizeof(uint32_t) * 8); 126066a210ffSJames Smart atomic_inc(&cstat->fc4NvmeControlRequests); 126101649561SJames Smart } 126201649561SJames Smart /* 126301649561SJames Smart * Finish initializing those WQE fields that are independent 126401649561SJames Smart * of the nvme_cmnd request_buffer 126501649561SJames Smart */ 126601649561SJames Smart 12675fd11085SJames Smart /* Word 3 */ 12685fd11085SJames Smart bf_set(payload_offset_len, &wqe->fcp_icmd, 12695fd11085SJames Smart (nCmd->rsplen + nCmd->cmdlen)); 12705fd11085SJames Smart 127101649561SJames Smart /* Word 6 */ 127201649561SJames Smart bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 127301649561SJames Smart phba->sli4_hba.rpi_ids[pnode->nlp_rpi]); 127401649561SJames Smart bf_set(wqe_xri_tag, &wqe->generic.wqe_com, pwqeq->sli4_xritag); 127501649561SJames Smart 127601649561SJames Smart /* Word 8 */ 127701649561SJames Smart wqe->generic.wqe_com.abort_tag = pwqeq->iotag; 127801649561SJames Smart 127901649561SJames Smart /* Word 9 */ 128001649561SJames Smart bf_set(wqe_reqtag, &wqe->generic.wqe_com, pwqeq->iotag); 128101649561SJames Smart 128201649561SJames Smart pwqeq->vport = vport; 128301649561SJames Smart return 0; 128401649561SJames Smart } 128501649561SJames Smart 128601649561SJames Smart 128701649561SJames Smart /** 128801649561SJames Smart * lpfc_nvme_prep_io_dma - Issue an NVME-over-FCP IO 128901649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 129001649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 129101649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 129201649561SJames Smart * @lpfc_nvme_fcreq: IO request from nvme fc to driver. 129301649561SJames Smart * @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue 129401649561SJames Smart * 129501649561SJames Smart * Driver registers this routine as it io request handler. This 129601649561SJames Smart * routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq 129701649561SJames Smart * data structure to the rport indicated in @lpfc_nvme_rport. 129801649561SJames Smart * 129901649561SJames Smart * Return value : 130001649561SJames Smart * 0 - Success 130101649561SJames Smart * TODO: What are the failure codes. 130201649561SJames Smart **/ 130301649561SJames Smart static int 130401649561SJames Smart lpfc_nvme_prep_io_dma(struct lpfc_vport *vport, 130501649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd) 130601649561SJames Smart { 130701649561SJames Smart struct lpfc_hba *phba = vport->phba; 130801649561SJames Smart struct nvmefc_fcp_req *nCmd = lpfc_ncmd->nvmeCmd; 1309205e8240SJames Smart union lpfc_wqe128 *wqe = &lpfc_ncmd->cur_iocbq.wqe; 131001649561SJames Smart struct sli4_sge *sgl = lpfc_ncmd->nvme_sgl; 131101649561SJames Smart struct scatterlist *data_sg; 131201649561SJames Smart struct sli4_sge *first_data_sgl; 13130bc2b7c5SJames Smart struct ulp_bde64 *bde; 131401649561SJames Smart dma_addr_t physaddr; 131501649561SJames Smart uint32_t num_bde = 0; 131601649561SJames Smart uint32_t dma_len; 131701649561SJames Smart uint32_t dma_offset = 0; 131801649561SJames Smart int nseg, i; 131901649561SJames Smart 132001649561SJames Smart /* Fix up the command and response DMA stuff. */ 132101649561SJames Smart lpfc_nvme_adj_fcp_sgls(vport, lpfc_ncmd, nCmd); 132201649561SJames Smart 132301649561SJames Smart /* 132401649561SJames Smart * There are three possibilities here - use scatter-gather segment, use 132501649561SJames Smart * the single mapping, or neither. 132601649561SJames Smart */ 132701649561SJames Smart if (nCmd->sg_cnt) { 132801649561SJames Smart /* 132901649561SJames Smart * Jump over the cmd and rsp SGEs. The fix routine 133001649561SJames Smart * has already adjusted for this. 133101649561SJames Smart */ 133201649561SJames Smart sgl += 2; 133301649561SJames Smart 133401649561SJames Smart first_data_sgl = sgl; 133501649561SJames Smart lpfc_ncmd->seg_cnt = nCmd->sg_cnt; 133681e6a637SJames Smart if (lpfc_ncmd->seg_cnt > lpfc_nvme_template.max_sgl_segments) { 133701649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 133801649561SJames Smart "6058 Too many sg segments from " 133901649561SJames Smart "NVME Transport. Max %d, " 134001649561SJames Smart "nvmeIO sg_cnt %d\n", 134129bfd55aSJames Smart phba->cfg_nvme_seg_cnt + 1, 134201649561SJames Smart lpfc_ncmd->seg_cnt); 134301649561SJames Smart lpfc_ncmd->seg_cnt = 0; 134401649561SJames Smart return 1; 134501649561SJames Smart } 134601649561SJames Smart 134701649561SJames Smart /* 134801649561SJames Smart * The driver established a maximum scatter-gather segment count 134901649561SJames Smart * during probe that limits the number of sg elements in any 135001649561SJames Smart * single nvme command. Just run through the seg_cnt and format 135101649561SJames Smart * the sge's. 135201649561SJames Smart */ 135301649561SJames Smart nseg = nCmd->sg_cnt; 135401649561SJames Smart data_sg = nCmd->first_sgl; 135501649561SJames Smart for (i = 0; i < nseg; i++) { 135601649561SJames Smart if (data_sg == NULL) { 135701649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 135801649561SJames Smart "6059 dptr err %d, nseg %d\n", 135901649561SJames Smart i, nseg); 136001649561SJames Smart lpfc_ncmd->seg_cnt = 0; 136101649561SJames Smart return 1; 136201649561SJames Smart } 136301649561SJames Smart physaddr = data_sg->dma_address; 136401649561SJames Smart dma_len = data_sg->length; 136501649561SJames Smart sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); 136601649561SJames Smart sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); 136701649561SJames Smart sgl->word2 = le32_to_cpu(sgl->word2); 136801649561SJames Smart if ((num_bde + 1) == nseg) 136901649561SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 1); 137001649561SJames Smart else 137101649561SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 0); 137201649561SJames Smart bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); 137301649561SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); 137401649561SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 137501649561SJames Smart sgl->sge_len = cpu_to_le32(dma_len); 137601649561SJames Smart 137701649561SJames Smart dma_offset += dma_len; 137801649561SJames Smart data_sg = sg_next(data_sg); 137901649561SJames Smart sgl++; 138001649561SJames Smart } 13810bc2b7c5SJames Smart if (phba->nvme_embed_pbde) { 13820bc2b7c5SJames Smart /* Use PBDE support for first SGL only, offset == 0 */ 13830bc2b7c5SJames Smart /* Words 13-15 */ 13840bc2b7c5SJames Smart bde = (struct ulp_bde64 *) 13850bc2b7c5SJames Smart &wqe->words[13]; 13860bc2b7c5SJames Smart bde->addrLow = first_data_sgl->addr_lo; 13870bc2b7c5SJames Smart bde->addrHigh = first_data_sgl->addr_hi; 13880bc2b7c5SJames Smart bde->tus.f.bdeSize = 13890bc2b7c5SJames Smart le32_to_cpu(first_data_sgl->sge_len); 13900bc2b7c5SJames Smart bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; 13910bc2b7c5SJames Smart bde->tus.w = cpu_to_le32(bde->tus.w); 13925fd11085SJames Smart /* wqe_pbde is 1 in template */ 13935fd11085SJames Smart } else { 13945fd11085SJames Smart memset(&wqe->words[13], 0, (sizeof(uint32_t) * 3)); 13950bc2b7c5SJames Smart bf_set(wqe_pbde, &wqe->generic.wqe_com, 0); 13965fd11085SJames Smart } 139701649561SJames Smart } else { 13980bc2b7c5SJames Smart bf_set(wqe_pbde, &wqe->generic.wqe_com, 0); 13995fd11085SJames Smart memset(&wqe->words[13], 0, (sizeof(uint32_t) * 3)); 14000bc2b7c5SJames Smart 140101649561SJames Smart /* For this clause to be valid, the payload_length 140201649561SJames Smart * and sg_cnt must zero. 140301649561SJames Smart */ 140401649561SJames Smart if (nCmd->payload_length != 0) { 140501649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 140601649561SJames Smart "6063 NVME DMA Prep Err: sg_cnt %d " 140701649561SJames Smart "payload_length x%x\n", 140801649561SJames Smart nCmd->sg_cnt, nCmd->payload_length); 140901649561SJames Smart return 1; 141001649561SJames Smart } 141101649561SJames Smart } 141201649561SJames Smart return 0; 141301649561SJames Smart } 141401649561SJames Smart 141501649561SJames Smart /** 141601649561SJames Smart * lpfc_nvme_fcp_io_submit - Issue an NVME-over-FCP IO 141701649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 141801649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 141901649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 142001649561SJames Smart * @lpfc_nvme_fcreq: IO request from nvme fc to driver. 142101649561SJames Smart * @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue 142201649561SJames Smart * 142301649561SJames Smart * Driver registers this routine as it io request handler. This 142401649561SJames Smart * routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq 142501649561SJames Smart * data structure to the rport 142601649561SJames Smart indicated in @lpfc_nvme_rport. 142701649561SJames Smart * 142801649561SJames Smart * Return value : 142901649561SJames Smart * 0 - Success 143001649561SJames Smart * TODO: What are the failure codes. 143101649561SJames Smart **/ 143201649561SJames Smart static int 143301649561SJames Smart lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport, 143401649561SJames Smart struct nvme_fc_remote_port *pnvme_rport, 143501649561SJames Smart void *hw_queue_handle, 143601649561SJames Smart struct nvmefc_fcp_req *pnvme_fcreq) 143701649561SJames Smart { 143801649561SJames Smart int ret = 0; 1439cf1a1d3eSJames Smart int expedite = 0; 144066a210ffSJames Smart int idx; 144101649561SJames Smart struct lpfc_nvme_lport *lport; 144266a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat; 144301649561SJames Smart struct lpfc_vport *vport; 144401649561SJames Smart struct lpfc_hba *phba; 144501649561SJames Smart struct lpfc_nodelist *ndlp; 144601649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd; 144701649561SJames Smart struct lpfc_nvme_rport *rport; 144801649561SJames Smart struct lpfc_nvme_qhandle *lpfc_queue_info; 1449c3725bdcSJames Smart struct lpfc_nvme_fcpreq_priv *freqpriv; 1450cf1a1d3eSJames Smart struct nvme_common_command *sqe; 1451bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1452bd2cdd5eSJames Smart uint64_t start = 0; 1453bd2cdd5eSJames Smart #endif 145401649561SJames Smart 1455c3725bdcSJames Smart /* Validate pointers. LLDD fault handling with transport does 1456c3725bdcSJames Smart * have timing races. 1457c3725bdcSJames Smart */ 145801649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 1459c3725bdcSJames Smart if (unlikely(!lport)) { 1460c3725bdcSJames Smart ret = -EINVAL; 1461c3725bdcSJames Smart goto out_fail; 1462c3725bdcSJames Smart } 1463c3725bdcSJames Smart 146401649561SJames Smart vport = lport->vport; 1465c3725bdcSJames Smart 1466c3725bdcSJames Smart if (unlikely(!hw_queue_handle)) { 146744c2757bSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 146844c2757bSJames Smart "6117 Fail IO, NULL hw_queue_handle\n"); 146944c2757bSJames Smart atomic_inc(&lport->xmt_fcp_err); 1470cd240071SJames Smart ret = -EBUSY; 1471c3725bdcSJames Smart goto out_fail; 1472c3725bdcSJames Smart } 1473c3725bdcSJames Smart 147401649561SJames Smart phba = vport->phba; 147501649561SJames Smart 14761abcb371SDick Kennedy if (vport->load_flag & FC_UNLOADING) { 14771abcb371SDick Kennedy ret = -ENODEV; 14781abcb371SDick Kennedy goto out_fail; 14791abcb371SDick Kennedy } 14801abcb371SDick Kennedy 14813386f4bdSJames Smart if (vport->load_flag & FC_UNLOADING) { 148244c2757bSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 148344c2757bSJames Smart "6124 Fail IO, Driver unload\n"); 148444c2757bSJames Smart atomic_inc(&lport->xmt_fcp_err); 14853386f4bdSJames Smart ret = -ENODEV; 14863386f4bdSJames Smart goto out_fail; 14873386f4bdSJames Smart } 14883386f4bdSJames Smart 1489c3725bdcSJames Smart freqpriv = pnvme_fcreq->private; 1490c3725bdcSJames Smart if (unlikely(!freqpriv)) { 149144c2757bSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 149244c2757bSJames Smart "6158 Fail IO, NULL request data\n"); 149344c2757bSJames Smart atomic_inc(&lport->xmt_fcp_err); 1494c3725bdcSJames Smart ret = -EINVAL; 1495b7672ae6SDick Kennedy goto out_fail; 1496b7672ae6SDick Kennedy } 1497b7672ae6SDick Kennedy 1498bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1499bd2cdd5eSJames Smart if (phba->ktime_on) 1500bd2cdd5eSJames Smart start = ktime_get_ns(); 1501bd2cdd5eSJames Smart #endif 150201649561SJames Smart rport = (struct lpfc_nvme_rport *)pnvme_rport->private; 150301649561SJames Smart lpfc_queue_info = (struct lpfc_nvme_qhandle *)hw_queue_handle; 150401649561SJames Smart 150501649561SJames Smart /* 150601649561SJames Smart * Catch race where our node has transitioned, but the 150701649561SJames Smart * transport is still transitioning. 150801649561SJames Smart */ 150901649561SJames Smart ndlp = rport->ndlp; 151001649561SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 151144c2757bSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_NVME_IOERR, 151244c2757bSJames Smart "6053 Fail IO, ndlp not ready: rport %p " 151344c2757bSJames Smart "ndlp %p, DID x%06x\n", 151401649561SJames Smart rport, ndlp, pnvme_rport->port_id); 151544c2757bSJames Smart atomic_inc(&lport->xmt_fcp_err); 1516cd240071SJames Smart ret = -EBUSY; 151701649561SJames Smart goto out_fail; 151801649561SJames Smart } 151901649561SJames Smart 152001649561SJames Smart /* The remote node has to be a mapped target or it's an error. */ 152101649561SJames Smart if ((ndlp->nlp_type & NLP_NVME_TARGET) && 152201649561SJames Smart (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 152344c2757bSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_NVME_IOERR, 152444c2757bSJames Smart "6036 Fail IO, DID x%06x not ready for " 1525cd240071SJames Smart "IO. State x%x, Type x%x Flg x%x\n", 152644c2757bSJames Smart pnvme_rport->port_id, 1527cd240071SJames Smart ndlp->nlp_state, ndlp->nlp_type, 1528cd240071SJames Smart ndlp->upcall_flags); 15294b056682SJames Smart atomic_inc(&lport->xmt_fcp_bad_ndlp); 1530cd240071SJames Smart ret = -EBUSY; 153101649561SJames Smart goto out_fail; 153201649561SJames Smart 153301649561SJames Smart } 153401649561SJames Smart 1535cf1a1d3eSJames Smart /* Currently only NVME Keep alive commands should be expedited 1536cf1a1d3eSJames Smart * if the driver runs out of a resource. These should only be 1537cf1a1d3eSJames Smart * issued on the admin queue, qidx 0 1538cf1a1d3eSJames Smart */ 1539cf1a1d3eSJames Smart if (!lpfc_queue_info->qidx && !pnvme_fcreq->sg_cnt) { 1540cf1a1d3eSJames Smart sqe = &((struct nvme_fc_cmd_iu *) 1541cf1a1d3eSJames Smart pnvme_fcreq->cmdaddr)->sqe.common; 1542cf1a1d3eSJames Smart if (sqe->opcode == nvme_admin_keep_alive) 1543cf1a1d3eSJames Smart expedite = 1; 1544cf1a1d3eSJames Smart } 1545cf1a1d3eSJames Smart 154601649561SJames Smart /* The node is shared with FCP IO, make sure the IO pending count does 154701649561SJames Smart * not exceed the programmed depth. 154801649561SJames Smart */ 1549cf1a1d3eSJames Smart if ((atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) && 1550cf1a1d3eSJames Smart !expedite) { 155144c2757bSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 155244c2757bSJames Smart "6174 Fail IO, ndlp qdepth exceeded: " 15534d5e789aSJames Smart "idx %d DID %x pend %d qdepth %d\n", 15544d5e789aSJames Smart lpfc_queue_info->index, ndlp->nlp_DID, 15554d5e789aSJames Smart atomic_read(&ndlp->cmd_pending), 15564d5e789aSJames Smart ndlp->cmd_qdepth); 15574b056682SJames Smart atomic_inc(&lport->xmt_fcp_qdepth); 1558cd22d605SDick Kennedy ret = -EBUSY; 155901649561SJames Smart goto out_fail; 156001649561SJames Smart } 156101649561SJames Smart 1562cf1a1d3eSJames Smart lpfc_ncmd = lpfc_get_nvme_buf(phba, ndlp, expedite); 156301649561SJames Smart if (lpfc_ncmd == NULL) { 15644b056682SJames Smart atomic_inc(&lport->xmt_fcp_noxri); 156501649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 156644c2757bSJames Smart "6065 Fail IO, driver buffer pool is empty: " 156744c2757bSJames Smart "idx %d DID %x\n", 156844c2757bSJames Smart lpfc_queue_info->index, ndlp->nlp_DID); 1569cd22d605SDick Kennedy ret = -EBUSY; 157001649561SJames Smart goto out_fail; 157101649561SJames Smart } 1572bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1573c8a4ce0bSDick Kennedy if (start) { 1574bd2cdd5eSJames Smart lpfc_ncmd->ts_cmd_start = start; 1575bd2cdd5eSJames Smart lpfc_ncmd->ts_last_cmd = phba->ktime_last_cmd; 1576c8a4ce0bSDick Kennedy } else { 1577c8a4ce0bSDick Kennedy lpfc_ncmd->ts_cmd_start = 0; 1578bd2cdd5eSJames Smart } 1579bd2cdd5eSJames Smart #endif 158001649561SJames Smart 158101649561SJames Smart /* 158201649561SJames Smart * Store the data needed by the driver to issue, abort, and complete 158301649561SJames Smart * an IO. 158401649561SJames Smart * Do not let the IO hang out forever. There is no midlayer issuing 158501649561SJames Smart * an abort so inform the FW of the maximum IO pending time. 158601649561SJames Smart */ 1587bbe3012bSJames Smart freqpriv->nvme_buf = lpfc_ncmd; 158801649561SJames Smart lpfc_ncmd->nvmeCmd = pnvme_fcreq; 158901649561SJames Smart lpfc_ncmd->nrport = rport; 1590318083adSJames Smart lpfc_ncmd->ndlp = ndlp; 159101649561SJames Smart lpfc_ncmd->start_time = jiffies; 159201649561SJames Smart 159301649561SJames Smart /* 159401649561SJames Smart * Issue the IO on the WQ indicated by index in the hw_queue_handle. 159501649561SJames Smart * This identfier was create in our hardware queue create callback 159601649561SJames Smart * routine. The driver now is dependent on the IO queue steering from 159701649561SJames Smart * the transport. We are trusting the upper NVME layers know which 159801649561SJames Smart * index to use and that they have affinitized a CPU to this hardware 159901649561SJames Smart * queue. A hardware queue maps to a driver MSI-X vector/EQ/CQ/WQ. 160001649561SJames Smart */ 160166a210ffSJames Smart idx = lpfc_queue_info->index; 160266a210ffSJames Smart lpfc_ncmd->cur_iocbq.hba_wqidx = idx; 160366a210ffSJames Smart cstat = &lport->cstat[idx]; 160466a210ffSJames Smart 160566a210ffSJames Smart lpfc_nvme_prep_io_cmd(vport, lpfc_ncmd, ndlp, cstat); 160666a210ffSJames Smart ret = lpfc_nvme_prep_io_dma(vport, lpfc_ncmd); 160766a210ffSJames Smart if (ret) { 160844c2757bSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 160944c2757bSJames Smart "6175 Fail IO, Prep DMA: " 161044c2757bSJames Smart "idx %d DID %x\n", 161144c2757bSJames Smart lpfc_queue_info->index, ndlp->nlp_DID); 161244c2757bSJames Smart atomic_inc(&lport->xmt_fcp_err); 161366a210ffSJames Smart ret = -ENOMEM; 161466a210ffSJames Smart goto out_free_nvme_buf; 161566a210ffSJames Smart } 161666a210ffSJames Smart 161766a210ffSJames Smart atomic_inc(&ndlp->cmd_pending); 161801649561SJames Smart 1619bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME FCP XMIT: xri x%x idx %d to %06x\n", 1620bd2cdd5eSJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 1621bd2cdd5eSJames Smart lpfc_queue_info->index, ndlp->nlp_DID); 1622bd2cdd5eSJames Smart 162301649561SJames Smart ret = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, &lpfc_ncmd->cur_iocbq); 162401649561SJames Smart if (ret) { 16254b056682SJames Smart atomic_inc(&lport->xmt_fcp_wqerr); 162601649561SJames Smart atomic_dec(&ndlp->cmd_pending); 1627e3246a12SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 162844c2757bSJames Smart "6113 Fail IO, Could not issue WQE err %x " 162901649561SJames Smart "sid: x%x did: x%x oxid: x%x\n", 163001649561SJames Smart ret, vport->fc_myDID, ndlp->nlp_DID, 163101649561SJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag); 163201649561SJames Smart goto out_free_nvme_buf; 163301649561SJames Smart } 163401649561SJames Smart 1635bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1636c8a4ce0bSDick Kennedy if (lpfc_ncmd->ts_cmd_start) 1637bd2cdd5eSJames Smart lpfc_ncmd->ts_cmd_wqput = ktime_get_ns(); 1638bd2cdd5eSJames Smart 1639bd2cdd5eSJames Smart if (phba->cpucheck_on & LPFC_CHECK_NVME_IO) { 1640bd2cdd5eSJames Smart lpfc_ncmd->cpu = smp_processor_id(); 1641bd2cdd5eSJames Smart if (lpfc_ncmd->cpu != lpfc_queue_info->index) { 1642bd2cdd5eSJames Smart /* Check for admin queue */ 1643bd2cdd5eSJames Smart if (lpfc_queue_info->qidx) { 1644bd2cdd5eSJames Smart lpfc_printf_vlog(vport, 1645bd2cdd5eSJames Smart KERN_ERR, LOG_NVME_IOERR, 1646bd2cdd5eSJames Smart "6702 CPU Check cmd: " 1647bd2cdd5eSJames Smart "cpu %d wq %d\n", 1648bd2cdd5eSJames Smart lpfc_ncmd->cpu, 1649bd2cdd5eSJames Smart lpfc_queue_info->index); 1650bd2cdd5eSJames Smart } 1651bd2cdd5eSJames Smart lpfc_ncmd->cpu = lpfc_queue_info->index; 1652bd2cdd5eSJames Smart } 1653bd2cdd5eSJames Smart if (lpfc_ncmd->cpu < LPFC_CHECK_CPU_CNT) 1654bd2cdd5eSJames Smart phba->cpucheck_xmt_io[lpfc_ncmd->cpu]++; 1655bd2cdd5eSJames Smart } 1656bd2cdd5eSJames Smart #endif 165701649561SJames Smart return 0; 165801649561SJames Smart 165901649561SJames Smart out_free_nvme_buf: 16602cee7808SJames Smart if (lpfc_ncmd->nvmeCmd->sg_cnt) { 16612cee7808SJames Smart if (lpfc_ncmd->nvmeCmd->io_dir == NVMEFC_FCP_WRITE) 166266a210ffSJames Smart atomic_dec(&cstat->fc4NvmeOutputRequests); 16632cee7808SJames Smart else 166466a210ffSJames Smart atomic_dec(&cstat->fc4NvmeInputRequests); 16652cee7808SJames Smart } else 166666a210ffSJames Smart atomic_dec(&cstat->fc4NvmeControlRequests); 166701649561SJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 166801649561SJames Smart out_fail: 166901649561SJames Smart return ret; 167001649561SJames Smart } 167101649561SJames Smart 167201649561SJames Smart /** 167301649561SJames Smart * lpfc_nvme_abort_fcreq_cmpl - Complete an NVME FCP abort request. 167401649561SJames Smart * @phba: Pointer to HBA context object 167501649561SJames Smart * @cmdiocb: Pointer to command iocb object. 167601649561SJames Smart * @rspiocb: Pointer to response iocb object. 167701649561SJames Smart * 167801649561SJames Smart * This is the callback function for any NVME FCP IO that was aborted. 167901649561SJames Smart * 168001649561SJames Smart * Return value: 168101649561SJames Smart * None 168201649561SJames Smart **/ 168301649561SJames Smart void 168401649561SJames Smart lpfc_nvme_abort_fcreq_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 168501649561SJames Smart struct lpfc_wcqe_complete *abts_cmpl) 168601649561SJames Smart { 1687e3246a12SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 168801649561SJames Smart "6145 ABORT_XRI_CN completing on rpi x%x " 168901649561SJames Smart "original iotag x%x, abort cmd iotag x%x " 169001649561SJames Smart "req_tag x%x, status x%x, hwstatus x%x\n", 169101649561SJames Smart cmdiocb->iocb.un.acxri.abortContextTag, 169201649561SJames Smart cmdiocb->iocb.un.acxri.abortIoTag, 169301649561SJames Smart cmdiocb->iotag, 169401649561SJames Smart bf_get(lpfc_wcqe_c_request_tag, abts_cmpl), 169501649561SJames Smart bf_get(lpfc_wcqe_c_status, abts_cmpl), 169601649561SJames Smart bf_get(lpfc_wcqe_c_hw_status, abts_cmpl)); 169701649561SJames Smart lpfc_sli_release_iocbq(phba, cmdiocb); 169801649561SJames Smart } 169901649561SJames Smart 170001649561SJames Smart /** 170101649561SJames Smart * lpfc_nvme_fcp_abort - Issue an NVME-over-FCP ABTS 170201649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 170301649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 170401649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 170501649561SJames Smart * @lpfc_nvme_fcreq: IO request from nvme fc to driver. 170601649561SJames Smart * @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue 170701649561SJames Smart * 170801649561SJames Smart * Driver registers this routine as its nvme request io abort handler. This 170901649561SJames Smart * routine issues an fcp Abort WQE with data from the @lpfc_nvme_fcpreq 171001649561SJames Smart * data structure to the rport indicated in @lpfc_nvme_rport. This routine 171101649561SJames Smart * is executed asynchronously - one the target is validated as "MAPPED" and 171201649561SJames Smart * ready for IO, the driver issues the abort request and returns. 171301649561SJames Smart * 171401649561SJames Smart * Return value: 171501649561SJames Smart * None 171601649561SJames Smart **/ 171701649561SJames Smart static void 171801649561SJames Smart lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport, 171901649561SJames Smart struct nvme_fc_remote_port *pnvme_rport, 172001649561SJames Smart void *hw_queue_handle, 172101649561SJames Smart struct nvmefc_fcp_req *pnvme_fcreq) 172201649561SJames Smart { 172301649561SJames Smart struct lpfc_nvme_lport *lport; 172401649561SJames Smart struct lpfc_vport *vport; 172501649561SJames Smart struct lpfc_hba *phba; 172601649561SJames Smart struct lpfc_nvme_buf *lpfc_nbuf; 172701649561SJames Smart struct lpfc_iocbq *abts_buf; 172801649561SJames Smart struct lpfc_iocbq *nvmereq_wqe; 1729c3725bdcSJames Smart struct lpfc_nvme_fcpreq_priv *freqpriv; 1730205e8240SJames Smart union lpfc_wqe128 *abts_wqe; 173101649561SJames Smart unsigned long flags; 173201649561SJames Smart int ret_val; 173301649561SJames Smart 1734c3725bdcSJames Smart /* Validate pointers. LLDD fault handling with transport does 1735c3725bdcSJames Smart * have timing races. 1736c3725bdcSJames Smart */ 173701649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 1738c3725bdcSJames Smart if (unlikely(!lport)) 1739c3725bdcSJames Smart return; 174001649561SJames Smart 1741c3725bdcSJames Smart vport = lport->vport; 1742c3725bdcSJames Smart 1743c3725bdcSJames Smart if (unlikely(!hw_queue_handle)) { 1744c3725bdcSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 1745c3725bdcSJames Smart "6129 Fail Abort, HW Queue Handle NULL.\n"); 1746c3725bdcSJames Smart return; 1747c3725bdcSJames Smart } 1748c3725bdcSJames Smart 1749c3725bdcSJames Smart phba = vport->phba; 1750c3725bdcSJames Smart freqpriv = pnvme_fcreq->private; 1751c3725bdcSJames Smart 1752c3725bdcSJames Smart if (unlikely(!freqpriv)) 1753c3725bdcSJames Smart return; 17543386f4bdSJames Smart if (vport->load_flag & FC_UNLOADING) 17553386f4bdSJames Smart return; 17563386f4bdSJames Smart 175701649561SJames Smart /* Announce entry to new IO submit field. */ 175886c67379SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 175901649561SJames Smart "6002 Abort Request to rport DID x%06x " 176001649561SJames Smart "for nvme_fc_req %p\n", 176101649561SJames Smart pnvme_rport->port_id, 176201649561SJames Smart pnvme_fcreq); 176301649561SJames Smart 176401649561SJames Smart /* If the hba is getting reset, this flag is set. It is 176501649561SJames Smart * cleared when the reset is complete and rings reestablished. 176601649561SJames Smart */ 176701649561SJames Smart spin_lock_irqsave(&phba->hbalock, flags); 176801649561SJames Smart /* driver queued commands are in process of being flushed */ 176901649561SJames Smart if (phba->hba_flag & HBA_NVME_IOQ_FLUSH) { 177001649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 177186c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 177201649561SJames Smart "6139 Driver in reset cleanup - flushing " 177301649561SJames Smart "NVME Req now. hba_flag x%x\n", 177401649561SJames Smart phba->hba_flag); 177501649561SJames Smart return; 177601649561SJames Smart } 177701649561SJames Smart 1778bbe3012bSJames Smart lpfc_nbuf = freqpriv->nvme_buf; 177901649561SJames Smart if (!lpfc_nbuf) { 178001649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 178186c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 178201649561SJames Smart "6140 NVME IO req has no matching lpfc nvme " 178301649561SJames Smart "io buffer. Skipping abort req.\n"); 178401649561SJames Smart return; 178501649561SJames Smart } else if (!lpfc_nbuf->nvmeCmd) { 178601649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 178786c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 178801649561SJames Smart "6141 lpfc NVME IO req has no nvme_fcreq " 178901649561SJames Smart "io buffer. Skipping abort req.\n"); 179001649561SJames Smart return; 179101649561SJames Smart } 17922b7824d0SJames Smart nvmereq_wqe = &lpfc_nbuf->cur_iocbq; 179301649561SJames Smart 179401649561SJames Smart /* 179501649561SJames Smart * The lpfc_nbuf and the mapped nvme_fcreq in the driver's 179601649561SJames Smart * state must match the nvme_fcreq passed by the nvme 179701649561SJames Smart * transport. If they don't match, it is likely the driver 179801649561SJames Smart * has already completed the NVME IO and the nvme transport 179901649561SJames Smart * has not seen it yet. 180001649561SJames Smart */ 180101649561SJames Smart if (lpfc_nbuf->nvmeCmd != pnvme_fcreq) { 180201649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 180386c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 180401649561SJames Smart "6143 NVME req mismatch: " 180501649561SJames Smart "lpfc_nbuf %p nvmeCmd %p, " 18062b7824d0SJames Smart "pnvme_fcreq %p. Skipping Abort xri x%x\n", 180701649561SJames Smart lpfc_nbuf, lpfc_nbuf->nvmeCmd, 18082b7824d0SJames Smart pnvme_fcreq, nvmereq_wqe->sli4_xritag); 180901649561SJames Smart return; 181001649561SJames Smart } 181101649561SJames Smart 181201649561SJames Smart /* Don't abort IOs no longer on the pending queue. */ 181301649561SJames Smart if (!(nvmereq_wqe->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { 181401649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 181586c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 181601649561SJames Smart "6142 NVME IO req %p not queued - skipping " 18172b7824d0SJames Smart "abort req xri x%x\n", 18182b7824d0SJames Smart pnvme_fcreq, nvmereq_wqe->sli4_xritag); 181901649561SJames Smart return; 182001649561SJames Smart } 182101649561SJames Smart 18224b056682SJames Smart atomic_inc(&lport->xmt_fcp_abort); 1823bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME FCP ABORT: xri x%x idx %d to %06x\n", 1824bd2cdd5eSJames Smart nvmereq_wqe->sli4_xritag, 182500cefeb9SJames Smart nvmereq_wqe->hba_wqidx, pnvme_rport->port_id); 1826bd2cdd5eSJames Smart 182701649561SJames Smart /* Outstanding abort is in progress */ 182801649561SJames Smart if (nvmereq_wqe->iocb_flag & LPFC_DRIVER_ABORTED) { 182901649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 183086c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 183101649561SJames Smart "6144 Outstanding NVME I/O Abort Request " 183201649561SJames Smart "still pending on nvme_fcreq %p, " 18332b7824d0SJames Smart "lpfc_ncmd %p xri x%x\n", 18342b7824d0SJames Smart pnvme_fcreq, lpfc_nbuf, 18352b7824d0SJames Smart nvmereq_wqe->sli4_xritag); 183601649561SJames Smart return; 183701649561SJames Smart } 183801649561SJames Smart 183901649561SJames Smart abts_buf = __lpfc_sli_get_iocbq(phba); 184001649561SJames Smart if (!abts_buf) { 184101649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 184286c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 184301649561SJames Smart "6136 No available abort wqes. Skipping " 18442b7824d0SJames Smart "Abts req for nvme_fcreq %p xri x%x\n", 18452b7824d0SJames Smart pnvme_fcreq, nvmereq_wqe->sli4_xritag); 184601649561SJames Smart return; 184701649561SJames Smart } 184801649561SJames Smart 184901649561SJames Smart /* Ready - mark outstanding as aborted by driver. */ 185001649561SJames Smart nvmereq_wqe->iocb_flag |= LPFC_DRIVER_ABORTED; 185101649561SJames Smart 185201649561SJames Smart /* Complete prepping the abort wqe and issue to the FW. */ 185301649561SJames Smart abts_wqe = &abts_buf->wqe; 185401649561SJames Smart 185501649561SJames Smart /* WQEs are reused. Clear stale data and set key fields to 185601649561SJames Smart * zero like ia, iaab, iaar, xri_tag, and ctxt_tag. 185701649561SJames Smart */ 185801649561SJames Smart memset(abts_wqe, 0, sizeof(union lpfc_wqe)); 185901649561SJames Smart bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG); 186001649561SJames Smart 186101649561SJames Smart /* word 7 */ 186201649561SJames Smart bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0); 186301649561SJames Smart bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX); 186401649561SJames Smart bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com, 186501649561SJames Smart nvmereq_wqe->iocb.ulpClass); 186601649561SJames Smart 186701649561SJames Smart /* word 8 - tell the FW to abort the IO associated with this 186801649561SJames Smart * outstanding exchange ID. 186901649561SJames Smart */ 187001649561SJames Smart abts_wqe->abort_cmd.wqe_com.abort_tag = nvmereq_wqe->sli4_xritag; 187101649561SJames Smart 187201649561SJames Smart /* word 9 - this is the iotag for the abts_wqe completion. */ 187301649561SJames Smart bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com, 187401649561SJames Smart abts_buf->iotag); 187501649561SJames Smart 187601649561SJames Smart /* word 10 */ 187701649561SJames Smart bf_set(wqe_wqid, &abts_wqe->abort_cmd.wqe_com, nvmereq_wqe->hba_wqidx); 187801649561SJames Smart bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1); 187901649561SJames Smart bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE); 188001649561SJames Smart 188101649561SJames Smart /* word 11 */ 188201649561SJames Smart bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND); 188301649561SJames Smart bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1); 188401649561SJames Smart bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT); 188501649561SJames Smart 188601649561SJames Smart /* ABTS WQE must go to the same WQ as the WQE to be aborted */ 188701649561SJames Smart abts_buf->iocb_flag |= LPFC_IO_NVME; 188801649561SJames Smart abts_buf->hba_wqidx = nvmereq_wqe->hba_wqidx; 188901649561SJames Smart abts_buf->vport = vport; 189001649561SJames Smart abts_buf->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl; 189101649561SJames Smart ret_val = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abts_buf); 189201649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 1893cd22d605SDick Kennedy if (ret_val) { 189486c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 189501649561SJames Smart "6137 Failed abts issue_wqe with status x%x " 189601649561SJames Smart "for nvme_fcreq %p.\n", 189701649561SJames Smart ret_val, pnvme_fcreq); 189801649561SJames Smart lpfc_sli_release_iocbq(phba, abts_buf); 189901649561SJames Smart return; 190001649561SJames Smart } 190101649561SJames Smart 190286c67379SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 19032b7824d0SJames Smart "6138 Transport Abort NVME Request Issued for " 190401649561SJames Smart "ox_id x%x on reqtag x%x\n", 190501649561SJames Smart nvmereq_wqe->sli4_xritag, 190601649561SJames Smart abts_buf->iotag); 190701649561SJames Smart } 190801649561SJames Smart 190901649561SJames Smart /* Declare and initialization an instance of the FC NVME template. */ 191001649561SJames Smart static struct nvme_fc_port_template lpfc_nvme_template = { 191101649561SJames Smart /* initiator-based functions */ 191201649561SJames Smart .localport_delete = lpfc_nvme_localport_delete, 191301649561SJames Smart .remoteport_delete = lpfc_nvme_remoteport_delete, 191401649561SJames Smart .create_queue = lpfc_nvme_create_queue, 191501649561SJames Smart .delete_queue = lpfc_nvme_delete_queue, 191601649561SJames Smart .ls_req = lpfc_nvme_ls_req, 191701649561SJames Smart .fcp_io = lpfc_nvme_fcp_io_submit, 191801649561SJames Smart .ls_abort = lpfc_nvme_ls_abort, 191901649561SJames Smart .fcp_abort = lpfc_nvme_fcp_abort, 192001649561SJames Smart 192101649561SJames Smart .max_hw_queues = 1, 192201649561SJames Smart .max_sgl_segments = LPFC_NVME_DEFAULT_SEGS, 192301649561SJames Smart .max_dif_sgl_segments = LPFC_NVME_DEFAULT_SEGS, 192401649561SJames Smart .dma_boundary = 0xFFFFFFFF, 192501649561SJames Smart 192601649561SJames Smart /* Sizes of additional private data for data structures. 192701649561SJames Smart * No use for the last two sizes at this time. 192801649561SJames Smart */ 192901649561SJames Smart .local_priv_sz = sizeof(struct lpfc_nvme_lport), 193001649561SJames Smart .remote_priv_sz = sizeof(struct lpfc_nvme_rport), 193101649561SJames Smart .lsrqst_priv_sz = 0, 1932bbe3012bSJames Smart .fcprqst_priv_sz = sizeof(struct lpfc_nvme_fcpreq_priv), 193301649561SJames Smart }; 193401649561SJames Smart 193501649561SJames Smart /** 193601649561SJames Smart * lpfc_sli4_post_nvme_sgl_block - post a block of nvme sgl list to firmware 193701649561SJames Smart * @phba: pointer to lpfc hba data structure. 193801649561SJames Smart * @nblist: pointer to nvme buffer list. 193901649561SJames Smart * @count: number of scsi buffers on the list. 194001649561SJames Smart * 194101649561SJames Smart * This routine is invoked to post a block of @count scsi sgl pages from a 194201649561SJames Smart * SCSI buffer list @nblist to the HBA using non-embedded mailbox command. 194301649561SJames Smart * No Lock is held. 194401649561SJames Smart * 194501649561SJames Smart **/ 194601649561SJames Smart static int 194701649561SJames Smart lpfc_sli4_post_nvme_sgl_block(struct lpfc_hba *phba, 194801649561SJames Smart struct list_head *nblist, 194901649561SJames Smart int count) 195001649561SJames Smart { 195101649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd; 195201649561SJames Smart struct lpfc_mbx_post_uembed_sgl_page1 *sgl; 195301649561SJames Smart struct sgl_page_pairs *sgl_pg_pairs; 195401649561SJames Smart void *viraddr; 195501649561SJames Smart LPFC_MBOXQ_t *mbox; 195601649561SJames Smart uint32_t reqlen, alloclen, pg_pairs; 195701649561SJames Smart uint32_t mbox_tmo; 195801649561SJames Smart uint16_t xritag_start = 0; 195901649561SJames Smart int rc = 0; 196001649561SJames Smart uint32_t shdr_status, shdr_add_status; 196101649561SJames Smart dma_addr_t pdma_phys_bpl1; 196201649561SJames Smart union lpfc_sli4_cfg_shdr *shdr; 196301649561SJames Smart 196401649561SJames Smart /* Calculate the requested length of the dma memory */ 196501649561SJames Smart reqlen = count * sizeof(struct sgl_page_pairs) + 196601649561SJames Smart sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); 196701649561SJames Smart if (reqlen > SLI4_PAGE_SIZE) { 196801649561SJames Smart lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 196901649561SJames Smart "6118 Block sgl registration required DMA " 197001649561SJames Smart "size (%d) great than a page\n", reqlen); 197101649561SJames Smart return -ENOMEM; 197201649561SJames Smart } 197301649561SJames Smart mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 197401649561SJames Smart if (!mbox) { 197501649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 197601649561SJames Smart "6119 Failed to allocate mbox cmd memory\n"); 197701649561SJames Smart return -ENOMEM; 197801649561SJames Smart } 197901649561SJames Smart 198001649561SJames Smart /* Allocate DMA memory and set up the non-embedded mailbox command */ 198101649561SJames Smart alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 198201649561SJames Smart LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, 198301649561SJames Smart LPFC_SLI4_MBX_NEMBED); 198401649561SJames Smart 198501649561SJames Smart if (alloclen < reqlen) { 198601649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 198701649561SJames Smart "6120 Allocated DMA memory size (%d) is " 198801649561SJames Smart "less than the requested DMA memory " 198901649561SJames Smart "size (%d)\n", alloclen, reqlen); 199001649561SJames Smart lpfc_sli4_mbox_cmd_free(phba, mbox); 199101649561SJames Smart return -ENOMEM; 199201649561SJames Smart } 199301649561SJames Smart 199401649561SJames Smart /* Get the first SGE entry from the non-embedded DMA memory */ 199501649561SJames Smart viraddr = mbox->sge_array->addr[0]; 199601649561SJames Smart 199701649561SJames Smart /* Set up the SGL pages in the non-embedded DMA pages */ 199801649561SJames Smart sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; 199901649561SJames Smart sgl_pg_pairs = &sgl->sgl_pg_pairs; 200001649561SJames Smart 200101649561SJames Smart pg_pairs = 0; 200201649561SJames Smart list_for_each_entry(lpfc_ncmd, nblist, list) { 200301649561SJames Smart /* Set up the sge entry */ 200401649561SJames Smart sgl_pg_pairs->sgl_pg0_addr_lo = 200501649561SJames Smart cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl)); 200601649561SJames Smart sgl_pg_pairs->sgl_pg0_addr_hi = 200701649561SJames Smart cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl)); 200801649561SJames Smart if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) 200901649561SJames Smart pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl + 201001649561SJames Smart SGL_PAGE_SIZE; 201101649561SJames Smart else 201201649561SJames Smart pdma_phys_bpl1 = 0; 201301649561SJames Smart sgl_pg_pairs->sgl_pg1_addr_lo = 201401649561SJames Smart cpu_to_le32(putPaddrLow(pdma_phys_bpl1)); 201501649561SJames Smart sgl_pg_pairs->sgl_pg1_addr_hi = 201601649561SJames Smart cpu_to_le32(putPaddrHigh(pdma_phys_bpl1)); 201701649561SJames Smart /* Keep the first xritag on the list */ 201801649561SJames Smart if (pg_pairs == 0) 201901649561SJames Smart xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag; 202001649561SJames Smart sgl_pg_pairs++; 202101649561SJames Smart pg_pairs++; 202201649561SJames Smart } 202301649561SJames Smart bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); 202401649561SJames Smart bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); 202501649561SJames Smart /* Perform endian conversion if necessary */ 202601649561SJames Smart sgl->word0 = cpu_to_le32(sgl->word0); 202701649561SJames Smart 202801649561SJames Smart if (!phba->sli4_hba.intr_enable) 202901649561SJames Smart rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 203001649561SJames Smart else { 203101649561SJames Smart mbox_tmo = lpfc_mbox_tmo_val(phba, mbox); 203201649561SJames Smart rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 203301649561SJames Smart } 203401649561SJames Smart shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr; 203501649561SJames Smart shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 203601649561SJames Smart shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 203701649561SJames Smart if (rc != MBX_TIMEOUT) 203801649561SJames Smart lpfc_sli4_mbox_cmd_free(phba, mbox); 203901649561SJames Smart if (shdr_status || shdr_add_status || rc) { 204001649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 204101649561SJames Smart "6125 POST_SGL_BLOCK mailbox command failed " 204201649561SJames Smart "status x%x add_status x%x mbx status x%x\n", 204301649561SJames Smart shdr_status, shdr_add_status, rc); 204401649561SJames Smart rc = -ENXIO; 204501649561SJames Smart } 204601649561SJames Smart return rc; 204701649561SJames Smart } 204801649561SJames Smart 204901649561SJames Smart /** 205001649561SJames Smart * lpfc_post_nvme_sgl_list - Post blocks of nvme buffer sgls from a list 205101649561SJames Smart * @phba: pointer to lpfc hba data structure. 205201649561SJames Smart * @post_nblist: pointer to the nvme buffer list. 205301649561SJames Smart * 205401649561SJames Smart * This routine walks a list of nvme buffers that was passed in. It attempts 205501649561SJames Smart * to construct blocks of nvme buffer sgls which contains contiguous xris and 205601649561SJames Smart * uses the non-embedded SGL block post mailbox commands to post to the port. 205701649561SJames Smart * For single NVME buffer sgl with non-contiguous xri, if any, it shall use 205801649561SJames Smart * embedded SGL post mailbox command for posting. The @post_nblist passed in 205901649561SJames Smart * must be local list, thus no lock is needed when manipulate the list. 206001649561SJames Smart * 206101649561SJames Smart * Returns: 0 = failure, non-zero number of successfully posted buffers. 206201649561SJames Smart **/ 206301649561SJames Smart static int 206401649561SJames Smart lpfc_post_nvme_sgl_list(struct lpfc_hba *phba, 206501649561SJames Smart struct list_head *post_nblist, int sb_count) 206601649561SJames Smart { 206701649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 206801649561SJames Smart int status, sgl_size; 206901649561SJames Smart int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0; 207001649561SJames Smart dma_addr_t pdma_phys_sgl1; 207101649561SJames Smart int last_xritag = NO_XRI; 207201649561SJames Smart int cur_xritag; 207301649561SJames Smart LIST_HEAD(prep_nblist); 207401649561SJames Smart LIST_HEAD(blck_nblist); 207501649561SJames Smart LIST_HEAD(nvme_nblist); 207601649561SJames Smart 207701649561SJames Smart /* sanity check */ 207801649561SJames Smart if (sb_count <= 0) 207901649561SJames Smart return -EINVAL; 208001649561SJames Smart 208101649561SJames Smart sgl_size = phba->cfg_sg_dma_buf_size; 208201649561SJames Smart 208301649561SJames Smart list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) { 208401649561SJames Smart list_del_init(&lpfc_ncmd->list); 208501649561SJames Smart block_cnt++; 208601649561SJames Smart if ((last_xritag != NO_XRI) && 208701649561SJames Smart (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) { 208801649561SJames Smart /* a hole in xri block, form a sgl posting block */ 208901649561SJames Smart list_splice_init(&prep_nblist, &blck_nblist); 209001649561SJames Smart post_cnt = block_cnt - 1; 209101649561SJames Smart /* prepare list for next posting block */ 209201649561SJames Smart list_add_tail(&lpfc_ncmd->list, &prep_nblist); 209301649561SJames Smart block_cnt = 1; 209401649561SJames Smart } else { 209501649561SJames Smart /* prepare list for next posting block */ 209601649561SJames Smart list_add_tail(&lpfc_ncmd->list, &prep_nblist); 209701649561SJames Smart /* enough sgls for non-embed sgl mbox command */ 209801649561SJames Smart if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) { 209901649561SJames Smart list_splice_init(&prep_nblist, &blck_nblist); 210001649561SJames Smart post_cnt = block_cnt; 210101649561SJames Smart block_cnt = 0; 210201649561SJames Smart } 210301649561SJames Smart } 210401649561SJames Smart num_posting++; 210501649561SJames Smart last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag; 210601649561SJames Smart 210701649561SJames Smart /* end of repost sgl list condition for NVME buffers */ 210801649561SJames Smart if (num_posting == sb_count) { 210901649561SJames Smart if (post_cnt == 0) { 211001649561SJames Smart /* last sgl posting block */ 211101649561SJames Smart list_splice_init(&prep_nblist, &blck_nblist); 211201649561SJames Smart post_cnt = block_cnt; 211301649561SJames Smart } else if (block_cnt == 1) { 211401649561SJames Smart /* last single sgl with non-contiguous xri */ 211501649561SJames Smart if (sgl_size > SGL_PAGE_SIZE) 211601649561SJames Smart pdma_phys_sgl1 = 211701649561SJames Smart lpfc_ncmd->dma_phys_sgl + 211801649561SJames Smart SGL_PAGE_SIZE; 211901649561SJames Smart else 212001649561SJames Smart pdma_phys_sgl1 = 0; 212101649561SJames Smart cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag; 212201649561SJames Smart status = lpfc_sli4_post_sgl(phba, 212301649561SJames Smart lpfc_ncmd->dma_phys_sgl, 212401649561SJames Smart pdma_phys_sgl1, cur_xritag); 212501649561SJames Smart if (status) { 212601649561SJames Smart /* failure, put on abort nvme list */ 2127318083adSJames Smart lpfc_ncmd->flags |= LPFC_SBUF_XBUSY; 212801649561SJames Smart } else { 212901649561SJames Smart /* success, put on NVME buffer list */ 2130318083adSJames Smart lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; 213101649561SJames Smart lpfc_ncmd->status = IOSTAT_SUCCESS; 213201649561SJames Smart num_posted++; 213301649561SJames Smart } 213401649561SJames Smart /* success, put on NVME buffer sgl list */ 213501649561SJames Smart list_add_tail(&lpfc_ncmd->list, &nvme_nblist); 213601649561SJames Smart } 213701649561SJames Smart } 213801649561SJames Smart 213901649561SJames Smart /* continue until a nembed page worth of sgls */ 214001649561SJames Smart if (post_cnt == 0) 214101649561SJames Smart continue; 214201649561SJames Smart 214301649561SJames Smart /* post block of NVME buffer list sgls */ 214401649561SJames Smart status = lpfc_sli4_post_nvme_sgl_block(phba, &blck_nblist, 214501649561SJames Smart post_cnt); 214601649561SJames Smart 214701649561SJames Smart /* don't reset xirtag due to hole in xri block */ 214801649561SJames Smart if (block_cnt == 0) 214901649561SJames Smart last_xritag = NO_XRI; 215001649561SJames Smart 215101649561SJames Smart /* reset NVME buffer post count for next round of posting */ 215201649561SJames Smart post_cnt = 0; 215301649561SJames Smart 215401649561SJames Smart /* put posted NVME buffer-sgl posted on NVME buffer sgl list */ 215501649561SJames Smart while (!list_empty(&blck_nblist)) { 215601649561SJames Smart list_remove_head(&blck_nblist, lpfc_ncmd, 215701649561SJames Smart struct lpfc_nvme_buf, list); 215801649561SJames Smart if (status) { 215901649561SJames Smart /* failure, put on abort nvme list */ 2160318083adSJames Smart lpfc_ncmd->flags |= LPFC_SBUF_XBUSY; 216101649561SJames Smart } else { 216201649561SJames Smart /* success, put on NVME buffer list */ 2163318083adSJames Smart lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; 216401649561SJames Smart lpfc_ncmd->status = IOSTAT_SUCCESS; 216501649561SJames Smart num_posted++; 216601649561SJames Smart } 216701649561SJames Smart list_add_tail(&lpfc_ncmd->list, &nvme_nblist); 216801649561SJames Smart } 216901649561SJames Smart } 217001649561SJames Smart /* Push NVME buffers with sgl posted to the available list */ 217101649561SJames Smart while (!list_empty(&nvme_nblist)) { 217201649561SJames Smart list_remove_head(&nvme_nblist, lpfc_ncmd, 217301649561SJames Smart struct lpfc_nvme_buf, list); 217401649561SJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 217501649561SJames Smart } 217601649561SJames Smart return num_posted; 217701649561SJames Smart } 217801649561SJames Smart 217901649561SJames Smart /** 218001649561SJames Smart * lpfc_repost_nvme_sgl_list - Repost all the allocated nvme buffer sgls 218101649561SJames Smart * @phba: pointer to lpfc hba data structure. 218201649561SJames Smart * 218301649561SJames Smart * This routine walks the list of nvme buffers that have been allocated and 218401649561SJames Smart * repost them to the port by using SGL block post. This is needed after a 218501649561SJames Smart * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine 218601649561SJames Smart * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list 218701649561SJames Smart * to the lpfc_nvme_buf_list. If the repost fails, reject all nvme buffers. 218801649561SJames Smart * 218901649561SJames Smart * Returns: 0 = success, non-zero failure. 219001649561SJames Smart **/ 219101649561SJames Smart int 219201649561SJames Smart lpfc_repost_nvme_sgl_list(struct lpfc_hba *phba) 219301649561SJames Smart { 219401649561SJames Smart LIST_HEAD(post_nblist); 219501649561SJames Smart int num_posted, rc = 0; 219601649561SJames Smart 219701649561SJames Smart /* get all NVME buffers need to repost to a local list */ 219801649561SJames Smart spin_lock_irq(&phba->nvme_buf_list_get_lock); 219901649561SJames Smart spin_lock(&phba->nvme_buf_list_put_lock); 220001649561SJames Smart list_splice_init(&phba->lpfc_nvme_buf_list_get, &post_nblist); 220101649561SJames Smart list_splice(&phba->lpfc_nvme_buf_list_put, &post_nblist); 2202cf1a1d3eSJames Smart phba->get_nvme_bufs = 0; 2203cf1a1d3eSJames Smart phba->put_nvme_bufs = 0; 220401649561SJames Smart spin_unlock(&phba->nvme_buf_list_put_lock); 220501649561SJames Smart spin_unlock_irq(&phba->nvme_buf_list_get_lock); 220601649561SJames Smart 220701649561SJames Smart /* post the list of nvme buffer sgls to port if available */ 220801649561SJames Smart if (!list_empty(&post_nblist)) { 220901649561SJames Smart num_posted = lpfc_post_nvme_sgl_list(phba, &post_nblist, 221001649561SJames Smart phba->sli4_hba.nvme_xri_cnt); 221101649561SJames Smart /* failed to post any nvme buffer, return error */ 221201649561SJames Smart if (num_posted == 0) 221301649561SJames Smart rc = -EIO; 221401649561SJames Smart } 221501649561SJames Smart return rc; 221601649561SJames Smart } 221701649561SJames Smart 221801649561SJames Smart /** 221901649561SJames Smart * lpfc_new_nvme_buf - Scsi buffer allocator for HBA with SLI4 IF spec 222001649561SJames Smart * @vport: The virtual port for which this call being executed. 222101649561SJames Smart * @num_to_allocate: The requested number of buffers to allocate. 222201649561SJames Smart * 222301649561SJames Smart * This routine allocates nvme buffers for device with SLI-4 interface spec, 222401649561SJames Smart * the nvme buffer contains all the necessary information needed to initiate 222501649561SJames Smart * a NVME I/O. After allocating up to @num_to_allocate NVME buffers and put 222601649561SJames Smart * them on a list, it post them to the port by using SGL block post. 222701649561SJames Smart * 222801649561SJames Smart * Return codes: 222901649561SJames Smart * int - number of nvme buffers that were allocated and posted. 223001649561SJames Smart * 0 = failure, less than num_to_alloc is a partial failure. 223101649561SJames Smart **/ 223201649561SJames Smart static int 223301649561SJames Smart lpfc_new_nvme_buf(struct lpfc_vport *vport, int num_to_alloc) 223401649561SJames Smart { 223501649561SJames Smart struct lpfc_hba *phba = vport->phba; 223601649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd; 223701649561SJames Smart struct lpfc_iocbq *pwqeq; 223801649561SJames Smart union lpfc_wqe128 *wqe; 223901649561SJames Smart struct sli4_sge *sgl; 224001649561SJames Smart dma_addr_t pdma_phys_sgl; 224101649561SJames Smart uint16_t iotag, lxri = 0; 224201649561SJames Smart int bcnt, num_posted, sgl_size; 224301649561SJames Smart LIST_HEAD(prep_nblist); 224401649561SJames Smart LIST_HEAD(post_nblist); 224501649561SJames Smart LIST_HEAD(nvme_nblist); 224601649561SJames Smart 224701649561SJames Smart sgl_size = phba->cfg_sg_dma_buf_size; 224801649561SJames Smart 224901649561SJames Smart for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { 225001649561SJames Smart lpfc_ncmd = kzalloc(sizeof(struct lpfc_nvme_buf), GFP_KERNEL); 225101649561SJames Smart if (!lpfc_ncmd) 225201649561SJames Smart break; 225301649561SJames Smart /* 225401649561SJames Smart * Get memory from the pci pool to map the virt space to 225501649561SJames Smart * pci bus space for an I/O. The DMA buffer includes the 225601649561SJames Smart * number of SGE's necessary to support the sg_tablesize. 225701649561SJames Smart */ 2258df2f7729SThomas Meyer lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool, 225901649561SJames Smart GFP_KERNEL, 226001649561SJames Smart &lpfc_ncmd->dma_handle); 226101649561SJames Smart if (!lpfc_ncmd->data) { 226201649561SJames Smart kfree(lpfc_ncmd); 226301649561SJames Smart break; 226401649561SJames Smart } 226501649561SJames Smart 226601649561SJames Smart lxri = lpfc_sli4_next_xritag(phba); 226701649561SJames Smart if (lxri == NO_XRI) { 2268771db5c0SRomain Perier dma_pool_free(phba->lpfc_sg_dma_buf_pool, 226901649561SJames Smart lpfc_ncmd->data, lpfc_ncmd->dma_handle); 227001649561SJames Smart kfree(lpfc_ncmd); 227101649561SJames Smart break; 227201649561SJames Smart } 227301649561SJames Smart pwqeq = &(lpfc_ncmd->cur_iocbq); 2274205e8240SJames Smart wqe = &pwqeq->wqe; 227501649561SJames Smart 227601649561SJames Smart /* Allocate iotag for lpfc_ncmd->cur_iocbq. */ 227701649561SJames Smart iotag = lpfc_sli_next_iotag(phba, pwqeq); 227801649561SJames Smart if (iotag == 0) { 2279771db5c0SRomain Perier dma_pool_free(phba->lpfc_sg_dma_buf_pool, 228001649561SJames Smart lpfc_ncmd->data, lpfc_ncmd->dma_handle); 228101649561SJames Smart kfree(lpfc_ncmd); 228201649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 228301649561SJames Smart "6121 Failed to allocated IOTAG for" 228401649561SJames Smart " XRI:0x%x\n", lxri); 228501649561SJames Smart lpfc_sli4_free_xri(phba, lxri); 228601649561SJames Smart break; 228701649561SJames Smart } 228801649561SJames Smart pwqeq->sli4_lxritag = lxri; 228901649561SJames Smart pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 229001649561SJames Smart pwqeq->iocb_flag |= LPFC_IO_NVME; 229101649561SJames Smart pwqeq->context1 = lpfc_ncmd; 229201649561SJames Smart pwqeq->wqe_cmpl = lpfc_nvme_io_cmd_wqe_cmpl; 229301649561SJames Smart 229401649561SJames Smart /* Initialize local short-hand pointers. */ 229501649561SJames Smart lpfc_ncmd->nvme_sgl = lpfc_ncmd->data; 229601649561SJames Smart sgl = lpfc_ncmd->nvme_sgl; 229701649561SJames Smart pdma_phys_sgl = lpfc_ncmd->dma_handle; 229801649561SJames Smart lpfc_ncmd->dma_phys_sgl = pdma_phys_sgl; 229901649561SJames Smart 230001649561SJames Smart /* Rsp SGE will be filled in when we rcv an IO 230101649561SJames Smart * from the NVME Layer to be sent. 230201649561SJames Smart * The cmd is going to be embedded so we need a SKIP SGE. 230301649561SJames Smart */ 230401649561SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP); 230501649561SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 0); 230601649561SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 230701649561SJames Smart /* Fill in word 3 / sgl_len during cmd submission */ 230801649561SJames Smart 230901649561SJames Smart lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd; 231001649561SJames Smart 23115fd11085SJames Smart /* Initialize WQE */ 23125fd11085SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe)); 231301649561SJames Smart 231401649561SJames Smart /* add the nvme buffer to a post list */ 231501649561SJames Smart list_add_tail(&lpfc_ncmd->list, &post_nblist); 231601649561SJames Smart spin_lock_irq(&phba->nvme_buf_list_get_lock); 231701649561SJames Smart phba->sli4_hba.nvme_xri_cnt++; 231801649561SJames Smart spin_unlock_irq(&phba->nvme_buf_list_get_lock); 231901649561SJames Smart } 232001649561SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 232101649561SJames Smart "6114 Allocate %d out of %d requested new NVME " 232201649561SJames Smart "buffers\n", bcnt, num_to_alloc); 232301649561SJames Smart 232401649561SJames Smart /* post the list of nvme buffer sgls to port if available */ 232501649561SJames Smart if (!list_empty(&post_nblist)) 232601649561SJames Smart num_posted = lpfc_post_nvme_sgl_list(phba, 232701649561SJames Smart &post_nblist, bcnt); 232801649561SJames Smart else 232901649561SJames Smart num_posted = 0; 233001649561SJames Smart 233101649561SJames Smart return num_posted; 233201649561SJames Smart } 233301649561SJames Smart 2334cf1a1d3eSJames Smart static inline struct lpfc_nvme_buf * 2335cf1a1d3eSJames Smart lpfc_nvme_buf(struct lpfc_hba *phba) 2336cf1a1d3eSJames Smart { 2337cf1a1d3eSJames Smart struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 2338cf1a1d3eSJames Smart 2339cf1a1d3eSJames Smart list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 2340cf1a1d3eSJames Smart &phba->lpfc_nvme_buf_list_get, list) { 2341cf1a1d3eSJames Smart list_del_init(&lpfc_ncmd->list); 2342cf1a1d3eSJames Smart phba->get_nvme_bufs--; 2343cf1a1d3eSJames Smart return lpfc_ncmd; 2344cf1a1d3eSJames Smart } 2345cf1a1d3eSJames Smart return NULL; 2346cf1a1d3eSJames Smart } 2347cf1a1d3eSJames Smart 234801649561SJames Smart /** 234901649561SJames Smart * lpfc_get_nvme_buf - Get a nvme buffer from lpfc_nvme_buf_list of the HBA 235001649561SJames Smart * @phba: The HBA for which this call is being executed. 235101649561SJames Smart * 235201649561SJames Smart * This routine removes a nvme buffer from head of @phba lpfc_nvme_buf_list list 235301649561SJames Smart * and returns to caller. 235401649561SJames Smart * 235501649561SJames Smart * Return codes: 235601649561SJames Smart * NULL - Error 235701649561SJames Smart * Pointer to lpfc_nvme_buf - Success 235801649561SJames Smart **/ 235901649561SJames Smart static struct lpfc_nvme_buf * 2360cf1a1d3eSJames Smart lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, 2361cf1a1d3eSJames Smart int expedite) 236201649561SJames Smart { 2363cf1a1d3eSJames Smart struct lpfc_nvme_buf *lpfc_ncmd = NULL; 236401649561SJames Smart unsigned long iflag = 0; 236501649561SJames Smart 236601649561SJames Smart spin_lock_irqsave(&phba->nvme_buf_list_get_lock, iflag); 2367cf1a1d3eSJames Smart if (phba->get_nvme_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite) 2368cf1a1d3eSJames Smart lpfc_ncmd = lpfc_nvme_buf(phba); 2369cf1a1d3eSJames Smart if (!lpfc_ncmd) { 237001649561SJames Smart spin_lock(&phba->nvme_buf_list_put_lock); 237101649561SJames Smart list_splice(&phba->lpfc_nvme_buf_list_put, 237201649561SJames Smart &phba->lpfc_nvme_buf_list_get); 2373cf1a1d3eSJames Smart phba->get_nvme_bufs += phba->put_nvme_bufs; 237401649561SJames Smart INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 2375cf1a1d3eSJames Smart phba->put_nvme_bufs = 0; 237601649561SJames Smart spin_unlock(&phba->nvme_buf_list_put_lock); 2377cf1a1d3eSJames Smart if (phba->get_nvme_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite) 2378cf1a1d3eSJames Smart lpfc_ncmd = lpfc_nvme_buf(phba); 237901649561SJames Smart } 238001649561SJames Smart spin_unlock_irqrestore(&phba->nvme_buf_list_get_lock, iflag); 238101649561SJames Smart return lpfc_ncmd; 238201649561SJames Smart } 238301649561SJames Smart 238401649561SJames Smart /** 238501649561SJames Smart * lpfc_release_nvme_buf: Return a nvme buffer back to hba nvme buf list. 238601649561SJames Smart * @phba: The Hba for which this call is being executed. 238701649561SJames Smart * @lpfc_ncmd: The nvme buffer which is being released. 238801649561SJames Smart * 238901649561SJames Smart * This routine releases @lpfc_ncmd nvme buffer by adding it to tail of @phba 239001649561SJames Smart * lpfc_nvme_buf_list list. For SLI4 XRI's are tied to the nvme buffer 239101649561SJames Smart * and cannot be reused for at least RA_TOV amount of time if it was 239201649561SJames Smart * aborted. 239301649561SJames Smart **/ 239401649561SJames Smart static void 239501649561SJames Smart lpfc_release_nvme_buf(struct lpfc_hba *phba, struct lpfc_nvme_buf *lpfc_ncmd) 239601649561SJames Smart { 239701649561SJames Smart unsigned long iflag = 0; 239801649561SJames Smart 239901649561SJames Smart lpfc_ncmd->nonsg_phys = 0; 2400318083adSJames Smart if (lpfc_ncmd->flags & LPFC_SBUF_XBUSY) { 240186c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 240286c67379SJames Smart "6310 XB release deferred for " 240386c67379SJames Smart "ox_id x%x on reqtag x%x\n", 240486c67379SJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 240586c67379SJames Smart lpfc_ncmd->cur_iocbq.iotag); 240686c67379SJames Smart 240701649561SJames Smart spin_lock_irqsave(&phba->sli4_hba.abts_nvme_buf_list_lock, 240801649561SJames Smart iflag); 240901649561SJames Smart list_add_tail(&lpfc_ncmd->list, 241001649561SJames Smart &phba->sli4_hba.lpfc_abts_nvme_buf_list); 241101649561SJames Smart spin_unlock_irqrestore(&phba->sli4_hba.abts_nvme_buf_list_lock, 241201649561SJames Smart iflag); 241301649561SJames Smart } else { 241401649561SJames Smart lpfc_ncmd->nvmeCmd = NULL; 241501649561SJames Smart lpfc_ncmd->cur_iocbq.iocb_flag = LPFC_IO_NVME; 241601649561SJames Smart spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); 241701649561SJames Smart list_add_tail(&lpfc_ncmd->list, &phba->lpfc_nvme_buf_list_put); 2418cf1a1d3eSJames Smart phba->put_nvme_bufs++; 241901649561SJames Smart spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); 242001649561SJames Smart } 242101649561SJames Smart } 242201649561SJames Smart 242301649561SJames Smart /** 242401649561SJames Smart * lpfc_nvme_create_localport - Create/Bind an nvme localport instance. 242501649561SJames Smart * @pvport - the lpfc_vport instance requesting a localport. 242601649561SJames Smart * 242701649561SJames Smart * This routine is invoked to create an nvme localport instance to bind 242801649561SJames Smart * to the nvme_fc_transport. It is called once during driver load 242901649561SJames Smart * like lpfc_create_shost after all other services are initialized. 243001649561SJames Smart * It requires a vport, vpi, and wwns at call time. Other localport 243101649561SJames Smart * parameters are modified as the driver's FCID and the Fabric WWN 243201649561SJames Smart * are established. 243301649561SJames Smart * 243401649561SJames Smart * Return codes 243501649561SJames Smart * 0 - successful 243601649561SJames Smart * -ENOMEM - no heap memory available 243701649561SJames Smart * other values - from nvme registration upcall 243801649561SJames Smart **/ 243901649561SJames Smart int 244001649561SJames Smart lpfc_nvme_create_localport(struct lpfc_vport *vport) 244101649561SJames Smart { 2442166d7211SJames Smart int ret = 0; 244301649561SJames Smart struct lpfc_hba *phba = vport->phba; 244401649561SJames Smart struct nvme_fc_port_info nfcp_info; 244501649561SJames Smart struct nvme_fc_local_port *localport; 244601649561SJames Smart struct lpfc_nvme_lport *lport; 244766a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat; 244866a210ffSJames Smart int len, i; 244901649561SJames Smart 245001649561SJames Smart /* Initialize this localport instance. The vport wwn usage ensures 245101649561SJames Smart * that NPIV is accounted for. 245201649561SJames Smart */ 245301649561SJames Smart memset(&nfcp_info, 0, sizeof(struct nvme_fc_port_info)); 245401649561SJames Smart nfcp_info.port_role = FC_PORT_ROLE_NVME_INITIATOR; 245501649561SJames Smart nfcp_info.node_name = wwn_to_u64(vport->fc_nodename.u.wwn); 245601649561SJames Smart nfcp_info.port_name = wwn_to_u64(vport->fc_portname.u.wwn); 245701649561SJames Smart 24584d4c4a4aSJames Smart /* Limit to LPFC_MAX_NVME_SEG_CNT. 24594d4c4a4aSJames Smart * For now need + 1 to get around NVME transport logic. 24604d4c4a4aSJames Smart */ 24614d4c4a4aSJames Smart if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) { 24624d4c4a4aSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME | LOG_INIT, 24634d4c4a4aSJames Smart "6300 Reducing sg segment cnt to %d\n", 24644d4c4a4aSJames Smart LPFC_MAX_NVME_SEG_CNT); 24654d4c4a4aSJames Smart phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT; 24664d4c4a4aSJames Smart } else { 24674d4c4a4aSJames Smart phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt; 24684d4c4a4aSJames Smart } 24694d4c4a4aSJames Smart lpfc_nvme_template.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1; 247001649561SJames Smart lpfc_nvme_template.max_hw_queues = phba->cfg_nvme_io_channel; 247101649561SJames Smart 247266a210ffSJames Smart cstat = kmalloc((sizeof(struct lpfc_nvme_ctrl_stat) * 247366a210ffSJames Smart phba->cfg_nvme_io_channel), GFP_KERNEL); 247466a210ffSJames Smart if (!cstat) 247566a210ffSJames Smart return -ENOMEM; 247666a210ffSJames Smart 247701649561SJames Smart /* localport is allocated from the stack, but the registration 247801649561SJames Smart * call allocates heap memory as well as the private area. 247901649561SJames Smart */ 24807d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 248101649561SJames Smart ret = nvme_fc_register_localport(&nfcp_info, &lpfc_nvme_template, 248201649561SJames Smart &vport->phba->pcidev->dev, &localport); 2483166d7211SJames Smart #else 2484166d7211SJames Smart ret = -ENOMEM; 2485166d7211SJames Smart #endif 248601649561SJames Smart if (!ret) { 248701649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME | LOG_NVME_DISC, 248801649561SJames Smart "6005 Successfully registered local " 248901649561SJames Smart "NVME port num %d, localP %p, private %p, " 249001649561SJames Smart "sg_seg %d\n", 249101649561SJames Smart localport->port_num, localport, 249201649561SJames Smart localport->private, 249301649561SJames Smart lpfc_nvme_template.max_sgl_segments); 249401649561SJames Smart 249501649561SJames Smart /* Private is our lport size declared in the template. */ 249601649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 249701649561SJames Smart vport->localport = localport; 249801649561SJames Smart lport->vport = vport; 249966a210ffSJames Smart lport->cstat = cstat; 250001649561SJames Smart vport->nvmei_support = 1; 25016b486ce9SDick Kennedy 25024b056682SJames Smart atomic_set(&lport->xmt_fcp_noxri, 0); 25034b056682SJames Smart atomic_set(&lport->xmt_fcp_bad_ndlp, 0); 25044b056682SJames Smart atomic_set(&lport->xmt_fcp_qdepth, 0); 250544c2757bSJames Smart atomic_set(&lport->xmt_fcp_err, 0); 25064b056682SJames Smart atomic_set(&lport->xmt_fcp_wqerr, 0); 25074b056682SJames Smart atomic_set(&lport->xmt_fcp_abort, 0); 25084b056682SJames Smart atomic_set(&lport->xmt_ls_abort, 0); 25094b056682SJames Smart atomic_set(&lport->xmt_ls_err, 0); 25104b056682SJames Smart atomic_set(&lport->cmpl_fcp_xb, 0); 25114b056682SJames Smart atomic_set(&lport->cmpl_fcp_err, 0); 25124b056682SJames Smart atomic_set(&lport->cmpl_ls_xb, 0); 25134b056682SJames Smart atomic_set(&lport->cmpl_ls_err, 0); 251466a210ffSJames Smart atomic_set(&lport->fc4NvmeLsRequests, 0); 251566a210ffSJames Smart atomic_set(&lport->fc4NvmeLsCmpls, 0); 251666a210ffSJames Smart 251766a210ffSJames Smart for (i = 0; i < phba->cfg_nvme_io_channel; i++) { 251866a210ffSJames Smart cstat = &lport->cstat[i]; 251966a210ffSJames Smart atomic_set(&cstat->fc4NvmeInputRequests, 0); 252066a210ffSJames Smart atomic_set(&cstat->fc4NvmeOutputRequests, 0); 252166a210ffSJames Smart atomic_set(&cstat->fc4NvmeControlRequests, 0); 252266a210ffSJames Smart atomic_set(&cstat->fc4NvmeIoCmpls, 0); 252366a210ffSJames Smart } 25244b056682SJames Smart 25256b486ce9SDick Kennedy /* Don't post more new bufs if repost already recovered 25266b486ce9SDick Kennedy * the nvme sgls. 25276b486ce9SDick Kennedy */ 25286b486ce9SDick Kennedy if (phba->sli4_hba.nvme_xri_cnt == 0) { 25296b486ce9SDick Kennedy len = lpfc_new_nvme_buf(vport, 25306b486ce9SDick Kennedy phba->sli4_hba.nvme_xri_max); 253101649561SJames Smart vport->phba->total_nvme_bufs += len; 25323ebd9b47SJames Smart } 253366a210ffSJames Smart } else { 253466a210ffSJames Smart kfree(cstat); 25356b486ce9SDick Kennedy } 25363ebd9b47SJames Smart 253701649561SJames Smart return ret; 253801649561SJames Smart } 253901649561SJames Smart 2540add9d6beSJames Smart /* lpfc_nvme_lport_unreg_wait - Wait for the host to complete an lport unreg. 2541add9d6beSJames Smart * 2542add9d6beSJames Smart * The driver has to wait for the host nvme transport to callback 2543add9d6beSJames Smart * indicating the localport has successfully unregistered all 2544add9d6beSJames Smart * resources. Since this is an uninterruptible wait, loop every ten 2545add9d6beSJames Smart * seconds and print a message indicating no progress. 2546add9d6beSJames Smart * 2547add9d6beSJames Smart * An uninterruptible wait is used because of the risk of transport-to- 2548add9d6beSJames Smart * driver state mismatch. 2549add9d6beSJames Smart */ 2550add9d6beSJames Smart void 2551add9d6beSJames Smart lpfc_nvme_lport_unreg_wait(struct lpfc_vport *vport, 2552add9d6beSJames Smart struct lpfc_nvme_lport *lport) 2553add9d6beSJames Smart { 2554add9d6beSJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 2555add9d6beSJames Smart u32 wait_tmo; 2556add9d6beSJames Smart int ret; 2557add9d6beSJames Smart 2558add9d6beSJames Smart /* Host transport has to clean up and confirm requiring an indefinite 2559add9d6beSJames Smart * wait. Print a message if a 10 second wait expires and renew the 2560add9d6beSJames Smart * wait. This is unexpected. 2561add9d6beSJames Smart */ 2562add9d6beSJames Smart wait_tmo = msecs_to_jiffies(LPFC_NVME_WAIT_TMO * 1000); 2563add9d6beSJames Smart while (true) { 2564add9d6beSJames Smart ret = wait_for_completion_timeout(&lport->lport_unreg_done, 2565add9d6beSJames Smart wait_tmo); 2566add9d6beSJames Smart if (unlikely(!ret)) { 2567add9d6beSJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 2568add9d6beSJames Smart "6176 Lport %p Localport %p wait " 2569add9d6beSJames Smart "timed out. Renewing.\n", 2570add9d6beSJames Smart lport, vport->localport); 2571add9d6beSJames Smart continue; 2572add9d6beSJames Smart } 2573add9d6beSJames Smart break; 2574add9d6beSJames Smart } 2575add9d6beSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 2576add9d6beSJames Smart "6177 Lport %p Localport %p Complete Success\n", 2577add9d6beSJames Smart lport, vport->localport); 2578add9d6beSJames Smart #endif 2579add9d6beSJames Smart } 2580add9d6beSJames Smart 258101649561SJames Smart /** 258201649561SJames Smart * lpfc_nvme_destroy_localport - Destroy lpfc_nvme bound to nvme transport. 258301649561SJames Smart * @pnvme: pointer to lpfc nvme data structure. 258401649561SJames Smart * 258501649561SJames Smart * This routine is invoked to destroy all lports bound to the phba. 258601649561SJames Smart * The lport memory was allocated by the nvme fc transport and is 258701649561SJames Smart * released there. This routine ensures all rports bound to the 258801649561SJames Smart * lport have been disconnected. 258901649561SJames Smart * 259001649561SJames Smart **/ 259101649561SJames Smart void 259201649561SJames Smart lpfc_nvme_destroy_localport(struct lpfc_vport *vport) 259301649561SJames Smart { 25947d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 259501649561SJames Smart struct nvme_fc_local_port *localport; 259601649561SJames Smart struct lpfc_nvme_lport *lport; 259766a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat; 259801649561SJames Smart int ret; 259901649561SJames Smart 260001649561SJames Smart if (vport->nvmei_support == 0) 260101649561SJames Smart return; 260201649561SJames Smart 260301649561SJames Smart localport = vport->localport; 260401649561SJames Smart vport->localport = NULL; 260501649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 260666a210ffSJames Smart cstat = lport->cstat; 260701649561SJames Smart 260801649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME, 260901649561SJames Smart "6011 Destroying NVME localport %p\n", 261001649561SJames Smart localport); 2611166d7211SJames Smart 261201649561SJames Smart /* lport's rport list is clear. Unregister 261301649561SJames Smart * lport and release resources. 261401649561SJames Smart */ 261501649561SJames Smart init_completion(&lport->lport_unreg_done); 261601649561SJames Smart ret = nvme_fc_unregister_localport(localport); 2617add9d6beSJames Smart 2618add9d6beSJames Smart /* Wait for completion. This either blocks 2619add9d6beSJames Smart * indefinitely or succeeds 2620add9d6beSJames Smart */ 2621add9d6beSJames Smart lpfc_nvme_lport_unreg_wait(vport, lport); 262266a210ffSJames Smart kfree(cstat); 262301649561SJames Smart 262401649561SJames Smart /* Regardless of the unregister upcall response, clear 262501649561SJames Smart * nvmei_support. All rports are unregistered and the 262601649561SJames Smart * driver will clean up. 262701649561SJames Smart */ 262801649561SJames Smart vport->nvmei_support = 0; 262901649561SJames Smart if (ret == 0) { 263001649561SJames Smart lpfc_printf_vlog(vport, 263101649561SJames Smart KERN_INFO, LOG_NVME_DISC, 263201649561SJames Smart "6009 Unregistered lport Success\n"); 263301649561SJames Smart } else { 263401649561SJames Smart lpfc_printf_vlog(vport, 263501649561SJames Smart KERN_INFO, LOG_NVME_DISC, 263601649561SJames Smart "6010 Unregistered lport " 263701649561SJames Smart "Failed, status x%x\n", 263801649561SJames Smart ret); 263901649561SJames Smart } 2640166d7211SJames Smart #endif 264101649561SJames Smart } 264201649561SJames Smart 264301649561SJames Smart void 264401649561SJames Smart lpfc_nvme_update_localport(struct lpfc_vport *vport) 264501649561SJames Smart { 26464410a67aSJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 264701649561SJames Smart struct nvme_fc_local_port *localport; 264801649561SJames Smart struct lpfc_nvme_lport *lport; 264901649561SJames Smart 265001649561SJames Smart localport = vport->localport; 26514410a67aSJames Smart if (!localport) { 26524410a67aSJames Smart lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME, 26534410a67aSJames Smart "6710 Update NVME fail. No localport\n"); 26544410a67aSJames Smart return; 26554410a67aSJames Smart } 265601649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 26574410a67aSJames Smart if (!lport) { 26584410a67aSJames Smart lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME, 26594410a67aSJames Smart "6171 Update NVME fail. localP %p, No lport\n", 26604410a67aSJames Smart localport); 26614410a67aSJames Smart return; 26624410a67aSJames Smart } 266301649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME, 266401649561SJames Smart "6012 Update NVME lport %p did x%x\n", 266501649561SJames Smart localport, vport->fc_myDID); 266601649561SJames Smart 266701649561SJames Smart localport->port_id = vport->fc_myDID; 266801649561SJames Smart if (localport->port_id == 0) 266901649561SJames Smart localport->port_role = FC_PORT_ROLE_NVME_DISCOVERY; 267001649561SJames Smart else 267101649561SJames Smart localport->port_role = FC_PORT_ROLE_NVME_INITIATOR; 267201649561SJames Smart 267301649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 267401649561SJames Smart "6030 bound lport %p to DID x%06x\n", 267501649561SJames Smart lport, localport->port_id); 26764410a67aSJames Smart #endif 267701649561SJames Smart } 267801649561SJames Smart 267901649561SJames Smart int 268001649561SJames Smart lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 268101649561SJames Smart { 26827d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 268301649561SJames Smart int ret = 0; 268401649561SJames Smart struct nvme_fc_local_port *localport; 268501649561SJames Smart struct lpfc_nvme_lport *lport; 268601649561SJames Smart struct lpfc_nvme_rport *rport; 268701466024SJames Smart struct lpfc_nvme_rport *oldrport; 268801649561SJames Smart struct nvme_fc_remote_port *remote_port; 268901649561SJames Smart struct nvme_fc_port_info rpinfo; 26902b75d0f9SDick Kennedy struct lpfc_nodelist *prev_ndlp; 269101649561SJames Smart 269201649561SJames Smart lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NVME_DISC, 269301649561SJames Smart "6006 Register NVME PORT. DID x%06x nlptype x%x\n", 269401649561SJames Smart ndlp->nlp_DID, ndlp->nlp_type); 269501649561SJames Smart 269601649561SJames Smart localport = vport->localport; 2697bb6a8a2cSDick Kennedy if (!localport) 2698bb6a8a2cSDick Kennedy return 0; 2699bb6a8a2cSDick Kennedy 270001649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 270101649561SJames Smart 27027a06dcd3SJames Smart /* NVME rports are not preserved across devloss. 27037a06dcd3SJames Smart * Just register this instance. Note, rpinfo->dev_loss_tmo 27047a06dcd3SJames Smart * is left 0 to indicate accept transport defaults. The 27057a06dcd3SJames Smart * driver communicates port role capabilities consistent 27067a06dcd3SJames Smart * with the PRLI response data. 270701649561SJames Smart */ 27087a06dcd3SJames Smart memset(&rpinfo, 0, sizeof(struct nvme_fc_port_info)); 27097a06dcd3SJames Smart rpinfo.port_id = ndlp->nlp_DID; 271001649561SJames Smart if (ndlp->nlp_type & NLP_NVME_TARGET) 27117a06dcd3SJames Smart rpinfo.port_role |= FC_PORT_ROLE_NVME_TARGET; 271201649561SJames Smart if (ndlp->nlp_type & NLP_NVME_INITIATOR) 27137a06dcd3SJames Smart rpinfo.port_role |= FC_PORT_ROLE_NVME_INITIATOR; 271401649561SJames Smart 27157a06dcd3SJames Smart if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 27167a06dcd3SJames Smart rpinfo.port_role |= FC_PORT_ROLE_NVME_DISCOVERY; 27177a06dcd3SJames Smart 27187a06dcd3SJames Smart rpinfo.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 27197a06dcd3SJames Smart rpinfo.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 272001466024SJames Smart 272101466024SJames Smart oldrport = lpfc_ndlp_get_nrport(ndlp); 272201466024SJames Smart if (!oldrport) 27233fd78355SJames Smart lpfc_nlp_get(ndlp); 27243fd78355SJames Smart 27257a06dcd3SJames Smart ret = nvme_fc_register_remoteport(localport, &rpinfo, &remote_port); 27267a06dcd3SJames Smart if (!ret) { 27277a06dcd3SJames Smart /* If the ndlp already has an nrport, this is just 27287a06dcd3SJames Smart * a resume of the existing rport. Else this is a 27297a06dcd3SJames Smart * new rport. 27307a06dcd3SJames Smart */ 2731b15bd3e6SJames Smart /* Guard against an unregister/reregister 2732b15bd3e6SJames Smart * race that leaves the WAIT flag set. 2733b15bd3e6SJames Smart */ 2734b15bd3e6SJames Smart spin_lock_irq(&vport->phba->hbalock); 2735b15bd3e6SJames Smart ndlp->upcall_flags &= ~NLP_WAIT_FOR_UNREG; 2736b15bd3e6SJames Smart spin_unlock_irq(&vport->phba->hbalock); 27377a06dcd3SJames Smart rport = remote_port->private; 273801466024SJames Smart if (oldrport) { 273901466024SJames Smart if (oldrport == remote_port->private) { 27403fd78355SJames Smart /* Same remoteport. Just reuse. */ 274101649561SJames Smart lpfc_printf_vlog(ndlp->vport, KERN_INFO, 274201649561SJames Smart LOG_NVME_DISC, 274301649561SJames Smart "6014 Rebinding lport to " 27443fd78355SJames Smart "remoteport %p wwpn 0x%llx, " 27453fd78355SJames Smart "Data: x%x x%x %p x%x x%06x\n", 27463fd78355SJames Smart remote_port, 274701649561SJames Smart remote_port->port_name, 274801649561SJames Smart remote_port->port_id, 274901649561SJames Smart remote_port->port_role, 27503fd78355SJames Smart ndlp, 275101649561SJames Smart ndlp->nlp_type, 275201649561SJames Smart ndlp->nlp_DID); 27533fd78355SJames Smart return 0; 27543fd78355SJames Smart } 27552b75d0f9SDick Kennedy prev_ndlp = rport->ndlp; 27562b75d0f9SDick Kennedy 27573fd78355SJames Smart /* Sever the ndlp<->rport association 27583fd78355SJames Smart * before dropping the ndlp ref from 27593fd78355SJames Smart * register. 27602b75d0f9SDick Kennedy */ 27613fd78355SJames Smart spin_lock_irq(&vport->phba->hbalock); 27622b75d0f9SDick Kennedy ndlp->nrport = NULL; 276301466024SJames Smart ndlp->upcall_flags &= ~NLP_WAIT_FOR_UNREG; 27643fd78355SJames Smart spin_unlock_irq(&vport->phba->hbalock); 27652b75d0f9SDick Kennedy rport->ndlp = NULL; 27663fd78355SJames Smart rport->remoteport = NULL; 2767b04744ceSJames Smart 2768b04744ceSJames Smart /* Reference only removed if previous NDLP is no longer 2769b04744ceSJames Smart * active. It might be just a swap and removing the 2770b04744ceSJames Smart * reference would cause a premature cleanup. 2771b04744ceSJames Smart */ 2772b04744ceSJames Smart if (prev_ndlp && prev_ndlp != ndlp) { 2773b04744ceSJames Smart if ((!NLP_CHK_NODE_ACT(prev_ndlp)) || 2774b04744ceSJames Smart (!prev_ndlp->nrport)) 2775b04744ceSJames Smart lpfc_nlp_put(prev_ndlp); 2776b04744ceSJames Smart } 27772b75d0f9SDick Kennedy } 27782b75d0f9SDick Kennedy 27792b75d0f9SDick Kennedy /* Clean bind the rport to the ndlp. */ 278001649561SJames Smart rport->remoteport = remote_port; 278101649561SJames Smart rport->lport = lport; 27823fd78355SJames Smart rport->ndlp = ndlp; 27833fd78355SJames Smart spin_lock_irq(&vport->phba->hbalock); 278401649561SJames Smart ndlp->nrport = rport; 27853fd78355SJames Smart spin_unlock_irq(&vport->phba->hbalock); 278601649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, 278701649561SJames Smart LOG_NVME_DISC | LOG_NODE, 27887a06dcd3SJames Smart "6022 Binding new rport to " 27893fd78355SJames Smart "lport %p Remoteport %p WWNN 0x%llx, " 27907a06dcd3SJames Smart "Rport WWPN 0x%llx DID " 27913fd78355SJames Smart "x%06x Role x%x, ndlp %p\n", 27923fd78355SJames Smart lport, remote_port, 279301649561SJames Smart rpinfo.node_name, rpinfo.port_name, 27943fd78355SJames Smart rpinfo.port_id, rpinfo.port_role, 27953fd78355SJames Smart ndlp); 279601649561SJames Smart } else { 279701649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, 279801649561SJames Smart LOG_NVME_DISC | LOG_NODE, 279901649561SJames Smart "6031 RemotePort Registration failed " 280001649561SJames Smart "err: %d, DID x%06x\n", 280101649561SJames Smart ret, ndlp->nlp_DID); 280201649561SJames Smart } 28037a06dcd3SJames Smart 280401649561SJames Smart return ret; 2805166d7211SJames Smart #else 2806166d7211SJames Smart return 0; 2807166d7211SJames Smart #endif 280801649561SJames Smart } 280901649561SJames Smart 281001649561SJames Smart /* lpfc_nvme_unregister_port - unbind the DID and port_role from this rport. 281101649561SJames Smart * 281201649561SJames Smart * There is no notion of Devloss or rport recovery from the current 281301649561SJames Smart * nvme_transport perspective. Loss of an rport just means IO cannot 281401649561SJames Smart * be sent and recovery is completely up to the initator. 281501649561SJames Smart * For now, the driver just unbinds the DID and port_role so that 281601649561SJames Smart * no further IO can be issued. Changes are planned for later. 281701649561SJames Smart * 281801649561SJames Smart * Notes - the ndlp reference count is not decremented here since 281901649561SJames Smart * since there is no nvme_transport api for devloss. Node ref count 282001649561SJames Smart * is only adjusted in driver unload. 282101649561SJames Smart */ 282201649561SJames Smart void 282301649561SJames Smart lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 282401649561SJames Smart { 28257d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 282601649561SJames Smart int ret; 282701649561SJames Smart struct nvme_fc_local_port *localport; 282801649561SJames Smart struct lpfc_nvme_lport *lport; 282901649561SJames Smart struct lpfc_nvme_rport *rport; 283001649561SJames Smart struct nvme_fc_remote_port *remoteport; 283101649561SJames Smart 283201649561SJames Smart localport = vport->localport; 283301649561SJames Smart 283401649561SJames Smart /* This is fundamental error. The localport is always 283501649561SJames Smart * available until driver unload. Just exit. 283601649561SJames Smart */ 283701649561SJames Smart if (!localport) 283801649561SJames Smart return; 283901649561SJames Smart 284001649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 284101649561SJames Smart if (!lport) 284201649561SJames Smart goto input_err; 284301649561SJames Smart 284401466024SJames Smart rport = lpfc_ndlp_get_nrport(ndlp); 284501649561SJames Smart if (!rport) 284601649561SJames Smart goto input_err; 284701649561SJames Smart 284801649561SJames Smart remoteport = rport->remoteport; 284901649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 285001649561SJames Smart "6033 Unreg nvme remoteport %p, portname x%llx, " 285101649561SJames Smart "port_id x%06x, portstate x%x port type x%x\n", 285201649561SJames Smart remoteport, remoteport->port_name, 285301649561SJames Smart remoteport->port_id, remoteport->port_state, 285401649561SJames Smart ndlp->nlp_type); 285501649561SJames Smart 285601649561SJames Smart /* Sanity check ndlp type. Only call for NVME ports. Don't 285701649561SJames Smart * clear any rport state until the transport calls back. 285801649561SJames Smart */ 28593b5bde69SJames Smart 28603b5bde69SJames Smart if (ndlp->nlp_type & NLP_NVME_TARGET) { 28617a06dcd3SJames Smart /* No concern about the role change on the nvme remoteport. 28627a06dcd3SJames Smart * The transport will update it. 28637a06dcd3SJames Smart */ 2864add9d6beSJames Smart ndlp->upcall_flags |= NLP_WAIT_FOR_UNREG; 28657438273fSJames Smart 28667438273fSJames Smart /* Don't let the host nvme transport keep sending keep-alives 28677438273fSJames Smart * on this remoteport. Vport is unloading, no recovery. The 28687438273fSJames Smart * return values is ignored. The upcall is a courtesy to the 28697438273fSJames Smart * transport. 28707438273fSJames Smart */ 28717438273fSJames Smart if (vport->load_flag & FC_UNLOADING) 28727438273fSJames Smart (void)nvme_fc_set_remoteport_devloss(remoteport, 0); 28737438273fSJames Smart 287401649561SJames Smart ret = nvme_fc_unregister_remoteport(remoteport); 28753fd78355SJames Smart if (ret != 0) { 28763fd78355SJames Smart lpfc_nlp_put(ndlp); 287701649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 287801649561SJames Smart "6167 NVME unregister failed %d " 287901649561SJames Smart "port_state x%x\n", 288001649561SJames Smart ret, remoteport->port_state); 28813fd78355SJames Smart } 288201649561SJames Smart } 288301649561SJames Smart return; 288401649561SJames Smart 288501649561SJames Smart input_err: 2886166d7211SJames Smart #endif 288701649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 28882b7824d0SJames Smart "6168 State error: lport %p, rport%p FCID x%06x\n", 288901649561SJames Smart vport->localport, ndlp->rport, ndlp->nlp_DID); 289001649561SJames Smart } 2891318083adSJames Smart 2892318083adSJames Smart /** 2893318083adSJames Smart * lpfc_sli4_nvme_xri_aborted - Fast-path process of NVME xri abort 2894318083adSJames Smart * @phba: pointer to lpfc hba data structure. 2895318083adSJames Smart * @axri: pointer to the fcp xri abort wcqe structure. 2896318083adSJames Smart * 2897318083adSJames Smart * This routine is invoked by the worker thread to process a SLI4 fast-path 2898952c303bSDick Kennedy * NVME aborted xri. Aborted NVME IO commands are completed to the transport 2899952c303bSDick Kennedy * here. 2900318083adSJames Smart **/ 2901318083adSJames Smart void 2902318083adSJames Smart lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba, 2903318083adSJames Smart struct sli4_wcqe_xri_aborted *axri) 2904318083adSJames Smart { 2905318083adSJames Smart uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); 2906318083adSJames Smart struct lpfc_nvme_buf *lpfc_ncmd, *next_lpfc_ncmd; 2907952c303bSDick Kennedy struct nvmefc_fcp_req *nvme_cmd = NULL; 2908318083adSJames Smart struct lpfc_nodelist *ndlp; 2909318083adSJames Smart unsigned long iflag = 0; 2910318083adSJames Smart 2911318083adSJames Smart if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 2912318083adSJames Smart return; 2913318083adSJames Smart spin_lock_irqsave(&phba->hbalock, iflag); 2914318083adSJames Smart spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 2915318083adSJames Smart list_for_each_entry_safe(lpfc_ncmd, next_lpfc_ncmd, 2916318083adSJames Smart &phba->sli4_hba.lpfc_abts_nvme_buf_list, 2917318083adSJames Smart list) { 2918318083adSJames Smart if (lpfc_ncmd->cur_iocbq.sli4_xritag == xri) { 2919bbe3012bSJames Smart list_del_init(&lpfc_ncmd->list); 2920318083adSJames Smart lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; 2921318083adSJames Smart lpfc_ncmd->status = IOSTAT_SUCCESS; 2922318083adSJames Smart spin_unlock( 2923318083adSJames Smart &phba->sli4_hba.abts_nvme_buf_list_lock); 2924318083adSJames Smart 2925318083adSJames Smart spin_unlock_irqrestore(&phba->hbalock, iflag); 2926318083adSJames Smart ndlp = lpfc_ncmd->ndlp; 2927952c303bSDick Kennedy if (ndlp) 2928318083adSJames Smart lpfc_sli4_abts_err_handler(phba, ndlp, axri); 292986c67379SJames Smart 293086c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 2931952c303bSDick Kennedy "6311 nvme_cmd %p xri x%x tag x%x " 2932952c303bSDick Kennedy "abort complete and xri released\n", 2933952c303bSDick Kennedy lpfc_ncmd->nvmeCmd, xri, 2934952c303bSDick Kennedy lpfc_ncmd->cur_iocbq.iotag); 293586c67379SJames Smart 2936952c303bSDick Kennedy /* Aborted NVME commands are required to not complete 2937952c303bSDick Kennedy * before the abort exchange command fully completes. 2938952c303bSDick Kennedy * Once completed, it is available via the put list. 2939952c303bSDick Kennedy */ 29403fd78355SJames Smart if (lpfc_ncmd->nvmeCmd) { 2941952c303bSDick Kennedy nvme_cmd = lpfc_ncmd->nvmeCmd; 2942952c303bSDick Kennedy nvme_cmd->done(nvme_cmd); 29433fd78355SJames Smart lpfc_ncmd->nvmeCmd = NULL; 29443fd78355SJames Smart } 2945318083adSJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 2946318083adSJames Smart return; 2947318083adSJames Smart } 2948318083adSJames Smart } 2949318083adSJames Smart spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 2950318083adSJames Smart spin_unlock_irqrestore(&phba->hbalock, iflag); 295186c67379SJames Smart 295286c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 295386c67379SJames Smart "6312 XRI Aborted xri x%x not found\n", xri); 295486c67379SJames Smart 2955318083adSJames Smart } 2956c3725bdcSJames Smart 2957c3725bdcSJames Smart /** 2958c3725bdcSJames Smart * lpfc_nvme_wait_for_io_drain - Wait for all NVME wqes to complete 2959c3725bdcSJames Smart * @phba: Pointer to HBA context object. 2960c3725bdcSJames Smart * 2961c3725bdcSJames Smart * This function flushes all wqes in the nvme rings and frees all resources 2962c3725bdcSJames Smart * in the txcmplq. This function does not issue abort wqes for the IO 2963c3725bdcSJames Smart * commands in txcmplq, they will just be returned with 2964c3725bdcSJames Smart * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI 2965c3725bdcSJames Smart * slot has been permanently disabled. 2966c3725bdcSJames Smart **/ 2967c3725bdcSJames Smart void 2968c3725bdcSJames Smart lpfc_nvme_wait_for_io_drain(struct lpfc_hba *phba) 2969c3725bdcSJames Smart { 2970c3725bdcSJames Smart struct lpfc_sli_ring *pring; 2971c3725bdcSJames Smart u32 i, wait_cnt = 0; 2972c3725bdcSJames Smart 2973*d580c613SJames Smart if (phba->sli_rev < LPFC_SLI_REV4 || !phba->sli4_hba.nvme_wq) 2974c3725bdcSJames Smart return; 2975c3725bdcSJames Smart 2976c3725bdcSJames Smart /* Cycle through all NVME rings and make sure all outstanding 2977c3725bdcSJames Smart * WQEs have been removed from the txcmplqs. 2978c3725bdcSJames Smart */ 2979c3725bdcSJames Smart for (i = 0; i < phba->cfg_nvme_io_channel; i++) { 2980c3725bdcSJames Smart pring = phba->sli4_hba.nvme_wq[i]->pring; 2981c3725bdcSJames Smart 2982*d580c613SJames Smart if (!pring) 2983*d580c613SJames Smart continue; 2984*d580c613SJames Smart 2985c3725bdcSJames Smart /* Retrieve everything on the txcmplq */ 2986c3725bdcSJames Smart while (!list_empty(&pring->txcmplq)) { 2987c3725bdcSJames Smart msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 2988c3725bdcSJames Smart wait_cnt++; 2989c3725bdcSJames Smart 2990c3725bdcSJames Smart /* The sleep is 10mS. Every ten seconds, 2991c3725bdcSJames Smart * dump a message. Something is wrong. 2992c3725bdcSJames Smart */ 2993c3725bdcSJames Smart if ((wait_cnt % 1000) == 0) { 2994c3725bdcSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 2995c3725bdcSJames Smart "6178 NVME IO not empty, " 2996c3725bdcSJames Smart "cnt %d\n", wait_cnt); 2997c3725bdcSJames Smart } 2998c3725bdcSJames Smart } 2999c3725bdcSJames Smart } 3000c3725bdcSJames Smart } 3001