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 * 5d080abe0SJames Smart * “Broadcom” refers to Broadcom Limited 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); 337*b15bd3e6SJames Smart 338*b15bd3e6SJames Smart /* The register rebind might have occurred before the delete 339*b15bd3e6SJames Smart * downcall. Guard against this race. 340*b15bd3e6SJames Smart */ 341*b15bd3e6SJames Smart if (ndlp->upcall_flags & NLP_WAIT_FOR_UNREG) { 3427a06dcd3SJames Smart ndlp->nrport = NULL; 34301466024SJames Smart ndlp->upcall_flags &= ~NLP_WAIT_FOR_UNREG; 344*b15bd3e6SJames 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 36766a210ffSJames Smart lport = (struct lpfc_nvme_lport *)vport->localport->private; 36801649561SJames Smart pnvme_lsreq = (struct nvmefc_ls_req *)cmdwqe->context2; 36901649561SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK; 37066a210ffSJames Smart 37166a210ffSJames Smart if (lport) { 37266a210ffSJames Smart atomic_inc(&lport->fc4NvmeLsCmpls); 3734b056682SJames Smart if (status) { 3744b056682SJames Smart if (bf_get(lpfc_wcqe_c_xb, wcqe)) 3754b056682SJames Smart atomic_inc(&lport->cmpl_ls_xb); 3764b056682SJames Smart atomic_inc(&lport->cmpl_ls_err); 3774b056682SJames Smart } 37866a210ffSJames Smart } 3794b056682SJames Smart 38001649561SJames Smart ndlp = (struct lpfc_nodelist *)cmdwqe->context1; 38101649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 38201649561SJames Smart "6047 nvme cmpl Enter " 383815a9c43SJames Smart "Data %p DID %x Xri: %x status %x reason x%x cmd:%p " 384815a9c43SJames Smart "lsreg:%p bmp:%p ndlp:%p\n", 38501649561SJames Smart pnvme_lsreq, ndlp ? ndlp->nlp_DID : 0, 38601649561SJames Smart cmdwqe->sli4_xritag, status, 387815a9c43SJames Smart (wcqe->parameter & 0xffff), 38801649561SJames Smart cmdwqe, pnvme_lsreq, cmdwqe->context3, ndlp); 38901649561SJames Smart 390bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME LS CMPL: xri x%x stat x%x parm x%x\n", 391bd2cdd5eSJames Smart cmdwqe->sli4_xritag, status, wcqe->parameter); 392bd2cdd5eSJames Smart 39301649561SJames Smart if (cmdwqe->context3) { 39401649561SJames Smart buf_ptr = (struct lpfc_dmabuf *)cmdwqe->context3; 39501649561SJames Smart lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 39601649561SJames Smart kfree(buf_ptr); 39701649561SJames Smart cmdwqe->context3 = NULL; 39801649561SJames Smart } 39901649561SJames Smart if (pnvme_lsreq->done) 40001649561SJames Smart pnvme_lsreq->done(pnvme_lsreq, status); 40101649561SJames Smart else 40201649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 40301649561SJames Smart "6046 nvme cmpl without done call back? " 40401649561SJames Smart "Data %p DID %x Xri: %x status %x\n", 40501649561SJames Smart pnvme_lsreq, ndlp ? ndlp->nlp_DID : 0, 40601649561SJames Smart cmdwqe->sli4_xritag, status); 40701649561SJames Smart if (ndlp) { 40801649561SJames Smart lpfc_nlp_put(ndlp); 40901649561SJames Smart cmdwqe->context1 = NULL; 41001649561SJames Smart } 41101649561SJames Smart lpfc_sli_release_iocbq(phba, cmdwqe); 41201649561SJames Smart } 41301649561SJames Smart 41401649561SJames Smart static int 41501649561SJames Smart lpfc_nvme_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp, 41601649561SJames Smart struct lpfc_dmabuf *inp, 41701649561SJames Smart struct nvmefc_ls_req *pnvme_lsreq, 41801649561SJames Smart void (*cmpl)(struct lpfc_hba *, struct lpfc_iocbq *, 41901649561SJames Smart struct lpfc_wcqe_complete *), 42001649561SJames Smart struct lpfc_nodelist *ndlp, uint32_t num_entry, 42101649561SJames Smart uint32_t tmo, uint8_t retry) 42201649561SJames Smart { 42301649561SJames Smart struct lpfc_hba *phba = vport->phba; 424205e8240SJames Smart union lpfc_wqe128 *wqe; 42501649561SJames Smart struct lpfc_iocbq *genwqe; 42601649561SJames Smart struct ulp_bde64 *bpl; 42701649561SJames Smart struct ulp_bde64 bde; 42801649561SJames Smart int i, rc, xmit_len, first_len; 42901649561SJames Smart 43001649561SJames Smart /* Allocate buffer for command WQE */ 43101649561SJames Smart genwqe = lpfc_sli_get_iocbq(phba); 43201649561SJames Smart if (genwqe == NULL) 43301649561SJames Smart return 1; 43401649561SJames Smart 43501649561SJames Smart wqe = &genwqe->wqe; 43601649561SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe)); 43701649561SJames Smart 43801649561SJames Smart genwqe->context3 = (uint8_t *)bmp; 43901649561SJames Smart genwqe->iocb_flag |= LPFC_IO_NVME_LS; 44001649561SJames Smart 44101649561SJames Smart /* Save for completion so we can release these resources */ 44201649561SJames Smart genwqe->context1 = lpfc_nlp_get(ndlp); 44301649561SJames Smart genwqe->context2 = (uint8_t *)pnvme_lsreq; 44401649561SJames Smart /* Fill in payload, bp points to frame payload */ 44501649561SJames Smart 44601649561SJames Smart if (!tmo) 44701649561SJames Smart /* FC spec states we need 3 * ratov for CT requests */ 44801649561SJames Smart tmo = (3 * phba->fc_ratov); 44901649561SJames Smart 45001649561SJames Smart /* For this command calculate the xmit length of the request bde. */ 45101649561SJames Smart xmit_len = 0; 45201649561SJames Smart first_len = 0; 45301649561SJames Smart bpl = (struct ulp_bde64 *)bmp->virt; 45401649561SJames Smart for (i = 0; i < num_entry; i++) { 45501649561SJames Smart bde.tus.w = bpl[i].tus.w; 45601649561SJames Smart if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64) 45701649561SJames Smart break; 45801649561SJames Smart xmit_len += bde.tus.f.bdeSize; 45901649561SJames Smart if (i == 0) 46001649561SJames Smart first_len = xmit_len; 46101649561SJames Smart } 46201649561SJames Smart 46301649561SJames Smart genwqe->rsvd2 = num_entry; 46401649561SJames Smart genwqe->hba_wqidx = 0; 46501649561SJames Smart 46601649561SJames Smart /* Words 0 - 2 */ 46701649561SJames Smart wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 46801649561SJames Smart wqe->generic.bde.tus.f.bdeSize = first_len; 46901649561SJames Smart wqe->generic.bde.addrLow = bpl[0].addrLow; 47001649561SJames Smart wqe->generic.bde.addrHigh = bpl[0].addrHigh; 47101649561SJames Smart 47201649561SJames Smart /* Word 3 */ 47301649561SJames Smart wqe->gen_req.request_payload_len = first_len; 47401649561SJames Smart 47501649561SJames Smart /* Word 4 */ 47601649561SJames Smart 47701649561SJames Smart /* Word 5 */ 47801649561SJames Smart bf_set(wqe_dfctl, &wqe->gen_req.wge_ctl, 0); 47901649561SJames Smart bf_set(wqe_si, &wqe->gen_req.wge_ctl, 1); 48001649561SJames Smart bf_set(wqe_la, &wqe->gen_req.wge_ctl, 1); 4818b361639SJames Smart bf_set(wqe_rctl, &wqe->gen_req.wge_ctl, FC_RCTL_ELS4_REQ); 48201649561SJames Smart bf_set(wqe_type, &wqe->gen_req.wge_ctl, FC_TYPE_NVME); 48301649561SJames Smart 48401649561SJames Smart /* Word 6 */ 48501649561SJames Smart bf_set(wqe_ctxt_tag, &wqe->gen_req.wqe_com, 48601649561SJames Smart phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]); 48701649561SJames Smart bf_set(wqe_xri_tag, &wqe->gen_req.wqe_com, genwqe->sli4_xritag); 48801649561SJames Smart 48901649561SJames Smart /* Word 7 */ 49001649561SJames Smart bf_set(wqe_tmo, &wqe->gen_req.wqe_com, (vport->phba->fc_ratov-1)); 49101649561SJames Smart bf_set(wqe_class, &wqe->gen_req.wqe_com, CLASS3); 49201649561SJames Smart bf_set(wqe_cmnd, &wqe->gen_req.wqe_com, CMD_GEN_REQUEST64_WQE); 49301649561SJames Smart bf_set(wqe_ct, &wqe->gen_req.wqe_com, SLI4_CT_RPI); 49401649561SJames Smart 49501649561SJames Smart /* Word 8 */ 49601649561SJames Smart wqe->gen_req.wqe_com.abort_tag = genwqe->iotag; 49701649561SJames Smart 49801649561SJames Smart /* Word 9 */ 49901649561SJames Smart bf_set(wqe_reqtag, &wqe->gen_req.wqe_com, genwqe->iotag); 50001649561SJames Smart 50101649561SJames Smart /* Word 10 */ 50201649561SJames Smart bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1); 50301649561SJames Smart bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ); 50401649561SJames Smart bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1); 50501649561SJames Smart bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE); 50601649561SJames Smart bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0); 50701649561SJames Smart 50801649561SJames Smart /* Word 11 */ 50901649561SJames Smart bf_set(wqe_cqid, &wqe->gen_req.wqe_com, LPFC_WQE_CQ_ID_DEFAULT); 51001649561SJames Smart bf_set(wqe_cmd_type, &wqe->gen_req.wqe_com, OTHER_COMMAND); 51101649561SJames Smart 51201649561SJames Smart 51301649561SJames Smart /* Issue GEN REQ WQE for NPORT <did> */ 51401649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 51501649561SJames Smart "6050 Issue GEN REQ WQE to NPORT x%x " 51601649561SJames Smart "Data: x%x x%x wq:%p lsreq:%p bmp:%p xmit:%d 1st:%d\n", 51701649561SJames Smart ndlp->nlp_DID, genwqe->iotag, 51801649561SJames Smart vport->port_state, 51901649561SJames Smart genwqe, pnvme_lsreq, bmp, xmit_len, first_len); 52001649561SJames Smart genwqe->wqe_cmpl = cmpl; 52101649561SJames Smart genwqe->iocb_cmpl = NULL; 52201649561SJames Smart genwqe->drvrTimeout = tmo + LPFC_DRVR_TIMEOUT; 52301649561SJames Smart genwqe->vport = vport; 52401649561SJames Smart genwqe->retry = retry; 52501649561SJames Smart 526bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME LS XMIT: xri x%x iotag x%x to x%06x\n", 527bd2cdd5eSJames Smart genwqe->sli4_xritag, genwqe->iotag, ndlp->nlp_DID); 528bd2cdd5eSJames Smart 52901649561SJames Smart rc = lpfc_sli4_issue_wqe(phba, LPFC_ELS_RING, genwqe); 530cd22d605SDick Kennedy if (rc) { 53101649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 53201649561SJames Smart "6045 Issue GEN REQ WQE to NPORT x%x " 53301649561SJames Smart "Data: x%x x%x\n", 53401649561SJames Smart ndlp->nlp_DID, genwqe->iotag, 53501649561SJames Smart vport->port_state); 53601649561SJames Smart lpfc_sli_release_iocbq(phba, genwqe); 53701649561SJames Smart return 1; 53801649561SJames Smart } 53901649561SJames Smart return 0; 54001649561SJames Smart } 54101649561SJames Smart 54201649561SJames Smart /** 54301649561SJames Smart * lpfc_nvme_ls_req - Issue an Link Service request 54401649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 54501649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 54601649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 54701649561SJames Smart * 54801649561SJames Smart * Driver registers this routine to handle any link service request 54901649561SJames Smart * from the nvme_fc transport to a remote nvme-aware port. 55001649561SJames Smart * 55101649561SJames Smart * Return value : 55201649561SJames Smart * 0 - Success 55301649561SJames Smart * TODO: What are the failure codes. 55401649561SJames Smart **/ 55501649561SJames Smart static int 55601649561SJames Smart lpfc_nvme_ls_req(struct nvme_fc_local_port *pnvme_lport, 55701649561SJames Smart struct nvme_fc_remote_port *pnvme_rport, 55801649561SJames Smart struct nvmefc_ls_req *pnvme_lsreq) 55901649561SJames Smart { 56001649561SJames Smart int ret = 0; 56101649561SJames Smart struct lpfc_nvme_lport *lport; 562815a9c43SJames Smart struct lpfc_nvme_rport *rport; 56301649561SJames Smart struct lpfc_vport *vport; 56401649561SJames Smart struct lpfc_nodelist *ndlp; 56501649561SJames Smart struct ulp_bde64 *bpl; 56601649561SJames Smart struct lpfc_dmabuf *bmp; 567ba43c4d0SJames Smart uint16_t ntype, nstate; 56801649561SJames Smart 56901649561SJames Smart /* there are two dma buf in the request, actually there is one and 57001649561SJames Smart * the second one is just the start address + cmd size. 57101649561SJames Smart * Before calling lpfc_nvme_gen_req these buffers need to be wrapped 57201649561SJames Smart * in a lpfc_dmabuf struct. When freeing we just free the wrapper 57301649561SJames Smart * because the nvem layer owns the data bufs. 57401649561SJames Smart * We do not have to break these packets open, we don't care what is in 57501649561SJames Smart * them. And we do not have to look at the resonse data, we only care 57601649561SJames Smart * that we got a response. All of the caring is going to happen in the 57701649561SJames Smart * nvme-fc layer. 57801649561SJames Smart */ 57901649561SJames Smart 58001649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 581815a9c43SJames Smart rport = (struct lpfc_nvme_rport *)pnvme_rport->private; 58266a210ffSJames Smart if (unlikely(!lport) || unlikely(!rport)) 58366a210ffSJames Smart return -EINVAL; 58466a210ffSJames Smart 58501649561SJames Smart vport = lport->vport; 58601649561SJames Smart 5871abcb371SDick Kennedy if (vport->load_flag & FC_UNLOADING) 5881abcb371SDick Kennedy return -ENODEV; 5891abcb371SDick Kennedy 590815a9c43SJames Smart /* Need the ndlp. It is stored in the driver's rport. */ 591815a9c43SJames Smart ndlp = rport->ndlp; 592ba43c4d0SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 593ba43c4d0SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 594815a9c43SJames Smart "6051 Remoteport %p, rport has invalid ndlp. " 595815a9c43SJames Smart "Failing LS Req\n", pnvme_rport); 596ba43c4d0SJames Smart return -ENODEV; 597ba43c4d0SJames Smart } 598ba43c4d0SJames Smart 599ba43c4d0SJames Smart /* The remote node has to be a mapped nvme target or an 600ba43c4d0SJames Smart * unmapped nvme initiator or it's an error. 601ba43c4d0SJames Smart */ 602ba43c4d0SJames Smart ntype = ndlp->nlp_type; 603ba43c4d0SJames Smart nstate = ndlp->nlp_state; 604ba43c4d0SJames Smart if ((ntype & NLP_NVME_TARGET && nstate != NLP_STE_MAPPED_NODE) || 605ba43c4d0SJames Smart (ntype & NLP_NVME_INITIATOR && nstate != NLP_STE_UNMAPPED_NODE)) { 606ba43c4d0SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 607ba43c4d0SJames Smart "6088 DID x%06x not ready for " 608ba43c4d0SJames Smart "IO. State x%x, Type x%x\n", 609ba43c4d0SJames Smart pnvme_rport->port_id, 610ba43c4d0SJames Smart ndlp->nlp_state, ndlp->nlp_type); 611ba43c4d0SJames Smart return -ENODEV; 61201649561SJames Smart } 61301649561SJames Smart bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 61401649561SJames Smart if (!bmp) { 61501649561SJames Smart 61601649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 61701649561SJames Smart "6044 Could not find node for DID %x\n", 61801649561SJames Smart pnvme_rport->port_id); 61901649561SJames Smart return 2; 62001649561SJames Smart } 62101649561SJames Smart INIT_LIST_HEAD(&bmp->list); 62201649561SJames Smart bmp->virt = lpfc_mbuf_alloc(vport->phba, MEM_PRI, &(bmp->phys)); 62301649561SJames Smart if (!bmp->virt) { 62401649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 62501649561SJames Smart "6042 Could not find node for DID %x\n", 62601649561SJames Smart pnvme_rport->port_id); 62701649561SJames Smart kfree(bmp); 62801649561SJames Smart return 3; 62901649561SJames Smart } 63001649561SJames Smart bpl = (struct ulp_bde64 *)bmp->virt; 63101649561SJames Smart bpl->addrHigh = le32_to_cpu(putPaddrHigh(pnvme_lsreq->rqstdma)); 63201649561SJames Smart bpl->addrLow = le32_to_cpu(putPaddrLow(pnvme_lsreq->rqstdma)); 63301649561SJames Smart bpl->tus.f.bdeFlags = 0; 63401649561SJames Smart bpl->tus.f.bdeSize = pnvme_lsreq->rqstlen; 63501649561SJames Smart bpl->tus.w = le32_to_cpu(bpl->tus.w); 63601649561SJames Smart bpl++; 63701649561SJames Smart 63801649561SJames Smart bpl->addrHigh = le32_to_cpu(putPaddrHigh(pnvme_lsreq->rspdma)); 63901649561SJames Smart bpl->addrLow = le32_to_cpu(putPaddrLow(pnvme_lsreq->rspdma)); 64001649561SJames Smart bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; 64101649561SJames Smart bpl->tus.f.bdeSize = pnvme_lsreq->rsplen; 64201649561SJames Smart bpl->tus.w = le32_to_cpu(bpl->tus.w); 64301649561SJames Smart 64401649561SJames Smart /* Expand print to include key fields. */ 64501649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 646815a9c43SJames Smart "6149 Issue LS Req to DID 0x%06x lport %p, rport %p " 647815a9c43SJames Smart "lsreq%p rqstlen:%d rsplen:%d %pad %pad\n", 648815a9c43SJames Smart ndlp->nlp_DID, 64901649561SJames Smart pnvme_lport, pnvme_rport, 65001649561SJames Smart pnvme_lsreq, pnvme_lsreq->rqstlen, 651825c6abbSArnd Bergmann pnvme_lsreq->rsplen, &pnvme_lsreq->rqstdma, 652825c6abbSArnd Bergmann &pnvme_lsreq->rspdma); 65301649561SJames Smart 65466a210ffSJames Smart atomic_inc(&lport->fc4NvmeLsRequests); 65501649561SJames Smart 65601649561SJames Smart /* Hardcode the wait to 30 seconds. Connections are failing otherwise. 65701649561SJames Smart * This code allows it all to work. 65801649561SJames Smart */ 65901649561SJames Smart ret = lpfc_nvme_gen_req(vport, bmp, pnvme_lsreq->rqstaddr, 66001649561SJames Smart pnvme_lsreq, lpfc_nvme_cmpl_gen_req, 66101649561SJames Smart ndlp, 2, 30, 0); 66201649561SJames Smart if (ret != WQE_SUCCESS) { 6634b056682SJames Smart atomic_inc(&lport->xmt_ls_err); 664815a9c43SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 66501649561SJames Smart "6052 EXIT. issue ls wqe failed lport %p, " 66601649561SJames Smart "rport %p lsreq%p Status %x DID %x\n", 66701649561SJames Smart pnvme_lport, pnvme_rport, pnvme_lsreq, 66801649561SJames Smart ret, ndlp->nlp_DID); 66901649561SJames Smart lpfc_mbuf_free(vport->phba, bmp->virt, bmp->phys); 67001649561SJames Smart kfree(bmp); 67101649561SJames Smart return ret; 67201649561SJames Smart } 67301649561SJames Smart 67401649561SJames Smart /* Stub in routine and return 0 for now. */ 67501649561SJames Smart return ret; 67601649561SJames Smart } 67701649561SJames Smart 67801649561SJames Smart /** 67901649561SJames Smart * lpfc_nvme_ls_abort - Issue an Link Service request 68001649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 68101649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 68201649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 68301649561SJames Smart * 68401649561SJames Smart * Driver registers this routine to handle any link service request 68501649561SJames Smart * from the nvme_fc transport to a remote nvme-aware port. 68601649561SJames Smart * 68701649561SJames Smart * Return value : 68801649561SJames Smart * 0 - Success 68901649561SJames Smart * TODO: What are the failure codes. 69001649561SJames Smart **/ 69101649561SJames Smart static void 69201649561SJames Smart lpfc_nvme_ls_abort(struct nvme_fc_local_port *pnvme_lport, 69301649561SJames Smart struct nvme_fc_remote_port *pnvme_rport, 69401649561SJames Smart struct nvmefc_ls_req *pnvme_lsreq) 69501649561SJames Smart { 69601649561SJames Smart struct lpfc_nvme_lport *lport; 69701649561SJames Smart struct lpfc_vport *vport; 69801649561SJames Smart struct lpfc_hba *phba; 69901649561SJames Smart struct lpfc_nodelist *ndlp; 70001649561SJames Smart LIST_HEAD(abort_list); 70101649561SJames Smart struct lpfc_sli_ring *pring; 70201649561SJames Smart struct lpfc_iocbq *wqe, *next_wqe; 70301649561SJames Smart 70401649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 70566a210ffSJames Smart if (unlikely(!lport)) 70666a210ffSJames Smart return; 70701649561SJames Smart vport = lport->vport; 70801649561SJames Smart phba = vport->phba; 70901649561SJames Smart 7103386f4bdSJames Smart if (vport->load_flag & FC_UNLOADING) 7113386f4bdSJames Smart return; 7123386f4bdSJames Smart 71301649561SJames Smart ndlp = lpfc_findnode_did(vport, pnvme_rport->port_id); 71401649561SJames Smart if (!ndlp) { 71501649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 71601649561SJames Smart "6049 Could not find node for DID %x\n", 71701649561SJames Smart pnvme_rport->port_id); 71801649561SJames Smart return; 71901649561SJames Smart } 72001649561SJames Smart 72101649561SJames Smart /* Expand print to include key fields. */ 72201649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 72301649561SJames Smart "6040 ENTER. lport %p, rport %p lsreq %p rqstlen:%d " 724825c6abbSArnd Bergmann "rsplen:%d %pad %pad\n", 72501649561SJames Smart pnvme_lport, pnvme_rport, 72601649561SJames Smart pnvme_lsreq, pnvme_lsreq->rqstlen, 727825c6abbSArnd Bergmann pnvme_lsreq->rsplen, &pnvme_lsreq->rqstdma, 728825c6abbSArnd Bergmann &pnvme_lsreq->rspdma); 72901649561SJames Smart 73001649561SJames Smart /* 73101649561SJames Smart * Lock the ELS ring txcmplq and build a local list of all ELS IOs 73201649561SJames Smart * that need an ABTS. The IOs need to stay on the txcmplq so that 73301649561SJames Smart * the abort operation completes them successfully. 73401649561SJames Smart */ 73501649561SJames Smart pring = phba->sli4_hba.nvmels_wq->pring; 73601649561SJames Smart spin_lock_irq(&phba->hbalock); 73701649561SJames Smart spin_lock(&pring->ring_lock); 73801649561SJames Smart list_for_each_entry_safe(wqe, next_wqe, &pring->txcmplq, list) { 73901649561SJames Smart /* Add to abort_list on on NDLP match. */ 74001649561SJames Smart if (lpfc_check_sli_ndlp(phba, pring, wqe, ndlp)) { 74101649561SJames Smart wqe->iocb_flag |= LPFC_DRIVER_ABORTED; 74201649561SJames Smart list_add_tail(&wqe->dlist, &abort_list); 74301649561SJames Smart } 74401649561SJames Smart } 74501649561SJames Smart spin_unlock(&pring->ring_lock); 74601649561SJames Smart spin_unlock_irq(&phba->hbalock); 74701649561SJames Smart 74801649561SJames Smart /* Abort the targeted IOs and remove them from the abort list. */ 74901649561SJames Smart list_for_each_entry_safe(wqe, next_wqe, &abort_list, dlist) { 7504b056682SJames Smart atomic_inc(&lport->xmt_ls_abort); 75101649561SJames Smart spin_lock_irq(&phba->hbalock); 75201649561SJames Smart list_del_init(&wqe->dlist); 75301649561SJames Smart lpfc_sli_issue_abort_iotag(phba, pring, wqe); 75401649561SJames Smart spin_unlock_irq(&phba->hbalock); 75501649561SJames Smart } 75601649561SJames Smart } 75701649561SJames Smart 75801649561SJames Smart /* Fix up the existing sgls for NVME IO. */ 7595fd11085SJames Smart static inline void 76001649561SJames Smart lpfc_nvme_adj_fcp_sgls(struct lpfc_vport *vport, 76101649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd, 76201649561SJames Smart struct nvmefc_fcp_req *nCmd) 76301649561SJames Smart { 7644e565cf0SJames Smart struct lpfc_hba *phba = vport->phba; 76501649561SJames Smart struct sli4_sge *sgl; 76601649561SJames Smart union lpfc_wqe128 *wqe; 76701649561SJames Smart uint32_t *wptr, *dptr; 76801649561SJames Smart 76901649561SJames Smart /* 7704e565cf0SJames Smart * Get a local pointer to the built-in wqe and correct 7714e565cf0SJames Smart * the cmd size to match NVME's 96 bytes and fix 7724e565cf0SJames Smart * the dma address. 7734e565cf0SJames Smart */ 7744e565cf0SJames Smart 775205e8240SJames Smart wqe = &lpfc_ncmd->cur_iocbq.wqe; 7764e565cf0SJames Smart 7774e565cf0SJames Smart /* 77801649561SJames Smart * Adjust the FCP_CMD and FCP_RSP DMA data and sge_len to 77901649561SJames Smart * match NVME. NVME sends 96 bytes. Also, use the 78001649561SJames Smart * nvme commands command and response dma addresses 78101649561SJames Smart * rather than the virtual memory to ease the restore 78201649561SJames Smart * operation. 78301649561SJames Smart */ 78401649561SJames Smart sgl = lpfc_ncmd->nvme_sgl; 78501649561SJames Smart sgl->sge_len = cpu_to_le32(nCmd->cmdlen); 7864e565cf0SJames Smart if (phba->cfg_nvme_embed_cmd) { 7874e565cf0SJames Smart sgl->addr_hi = 0; 7884e565cf0SJames Smart sgl->addr_lo = 0; 7894e565cf0SJames Smart 7904e565cf0SJames Smart /* Word 0-2 - NVME CMND IU (embedded payload) */ 7914e565cf0SJames Smart wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_IMMED; 7924e565cf0SJames Smart wqe->generic.bde.tus.f.bdeSize = 56; 7934e565cf0SJames Smart wqe->generic.bde.addrHigh = 0; 7944e565cf0SJames Smart wqe->generic.bde.addrLow = 64; /* Word 16 */ 7954e565cf0SJames Smart 7965fd11085SJames Smart /* Word 10 - dbde is 0, wqes is 1 in template */ 79701649561SJames Smart 79801649561SJames Smart /* 79901649561SJames Smart * Embed the payload in the last half of the WQE 80001649561SJames Smart * WQE words 16-30 get the NVME CMD IU payload 80101649561SJames Smart * 802b06a622fSJames Smart * WQE words 16-19 get payload Words 1-4 80301649561SJames Smart * WQE words 20-21 get payload Words 6-7 80401649561SJames Smart * WQE words 22-29 get payload Words 16-23 80501649561SJames Smart */ 806b06a622fSJames Smart wptr = &wqe->words[16]; /* WQE ptr */ 80701649561SJames Smart dptr = (uint32_t *)nCmd->cmdaddr; /* payload ptr */ 808b06a622fSJames Smart dptr++; /* Skip Word 0 in payload */ 80901649561SJames Smart 810b06a622fSJames Smart *wptr++ = *dptr++; /* Word 1 */ 81101649561SJames Smart *wptr++ = *dptr++; /* Word 2 */ 81201649561SJames Smart *wptr++ = *dptr++; /* Word 3 */ 81301649561SJames Smart *wptr++ = *dptr++; /* Word 4 */ 81401649561SJames Smart dptr++; /* Skip Word 5 in payload */ 81501649561SJames Smart *wptr++ = *dptr++; /* Word 6 */ 81601649561SJames Smart *wptr++ = *dptr++; /* Word 7 */ 81701649561SJames Smart dptr += 8; /* Skip Words 8-15 in payload */ 81801649561SJames Smart *wptr++ = *dptr++; /* Word 16 */ 81901649561SJames Smart *wptr++ = *dptr++; /* Word 17 */ 82001649561SJames Smart *wptr++ = *dptr++; /* Word 18 */ 82101649561SJames Smart *wptr++ = *dptr++; /* Word 19 */ 82201649561SJames Smart *wptr++ = *dptr++; /* Word 20 */ 82301649561SJames Smart *wptr++ = *dptr++; /* Word 21 */ 82401649561SJames Smart *wptr++ = *dptr++; /* Word 22 */ 82501649561SJames Smart *wptr = *dptr; /* Word 23 */ 8265fd11085SJames Smart } else { 8275fd11085SJames Smart sgl->addr_hi = cpu_to_le32(putPaddrHigh(nCmd->cmddma)); 8285fd11085SJames Smart sgl->addr_lo = cpu_to_le32(putPaddrLow(nCmd->cmddma)); 8295fd11085SJames Smart 8305fd11085SJames Smart /* Word 0-2 - NVME CMND IU Inline BDE */ 8315fd11085SJames Smart wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 8325fd11085SJames Smart wqe->generic.bde.tus.f.bdeSize = nCmd->cmdlen; 8335fd11085SJames Smart wqe->generic.bde.addrHigh = sgl->addr_hi; 8345fd11085SJames Smart wqe->generic.bde.addrLow = sgl->addr_lo; 8355fd11085SJames Smart 8365fd11085SJames Smart /* Word 10 */ 8375fd11085SJames Smart bf_set(wqe_dbde, &wqe->generic.wqe_com, 1); 8385fd11085SJames Smart bf_set(wqe_wqes, &wqe->generic.wqe_com, 0); 8395fd11085SJames Smart } 8405fd11085SJames Smart 8415fd11085SJames Smart sgl++; 8425fd11085SJames Smart 8435fd11085SJames Smart /* Setup the physical region for the FCP RSP */ 8445fd11085SJames Smart sgl->addr_hi = cpu_to_le32(putPaddrHigh(nCmd->rspdma)); 8455fd11085SJames Smart sgl->addr_lo = cpu_to_le32(putPaddrLow(nCmd->rspdma)); 8465fd11085SJames Smart sgl->word2 = le32_to_cpu(sgl->word2); 8475fd11085SJames Smart if (nCmd->sg_cnt) 8485fd11085SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 0); 8495fd11085SJames Smart else 8505fd11085SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 1); 8515fd11085SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 8525fd11085SJames Smart sgl->sge_len = cpu_to_le32(nCmd->rsplen); 85301649561SJames Smart } 85401649561SJames Smart 855bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 856bd2cdd5eSJames Smart static void 857bd2cdd5eSJames Smart lpfc_nvme_ktime(struct lpfc_hba *phba, 858bd2cdd5eSJames Smart struct lpfc_nvme_buf *lpfc_ncmd) 859bd2cdd5eSJames Smart { 860bd2cdd5eSJames Smart uint64_t seg1, seg2, seg3, seg4; 861c8a4ce0bSDick Kennedy uint64_t segsum; 862bd2cdd5eSJames Smart 863bd2cdd5eSJames Smart if (!lpfc_ncmd->ts_last_cmd || 864bd2cdd5eSJames Smart !lpfc_ncmd->ts_cmd_start || 865bd2cdd5eSJames Smart !lpfc_ncmd->ts_cmd_wqput || 866bd2cdd5eSJames Smart !lpfc_ncmd->ts_isr_cmpl || 867bd2cdd5eSJames Smart !lpfc_ncmd->ts_data_nvme) 868bd2cdd5eSJames Smart return; 869c8a4ce0bSDick Kennedy 870c8a4ce0bSDick Kennedy if (lpfc_ncmd->ts_data_nvme < lpfc_ncmd->ts_cmd_start) 871c8a4ce0bSDick Kennedy return; 872bd2cdd5eSJames Smart if (lpfc_ncmd->ts_cmd_start < lpfc_ncmd->ts_last_cmd) 873bd2cdd5eSJames Smart return; 874bd2cdd5eSJames Smart if (lpfc_ncmd->ts_cmd_wqput < lpfc_ncmd->ts_cmd_start) 875bd2cdd5eSJames Smart return; 876bd2cdd5eSJames Smart if (lpfc_ncmd->ts_isr_cmpl < lpfc_ncmd->ts_cmd_wqput) 877bd2cdd5eSJames Smart return; 878bd2cdd5eSJames Smart if (lpfc_ncmd->ts_data_nvme < lpfc_ncmd->ts_isr_cmpl) 879bd2cdd5eSJames Smart return; 880bd2cdd5eSJames Smart /* 881bd2cdd5eSJames Smart * Segment 1 - Time from Last FCP command cmpl is handed 882bd2cdd5eSJames Smart * off to NVME Layer to start of next command. 883bd2cdd5eSJames Smart * Segment 2 - Time from Driver receives a IO cmd start 884bd2cdd5eSJames Smart * from NVME Layer to WQ put is done on IO cmd. 885bd2cdd5eSJames Smart * Segment 3 - Time from Driver WQ put is done on IO cmd 886bd2cdd5eSJames Smart * to MSI-X ISR for IO cmpl. 887bd2cdd5eSJames Smart * Segment 4 - Time from MSI-X ISR for IO cmpl to when 888bd2cdd5eSJames Smart * cmpl is handled off to the NVME Layer. 889bd2cdd5eSJames Smart */ 890bd2cdd5eSJames Smart seg1 = lpfc_ncmd->ts_cmd_start - lpfc_ncmd->ts_last_cmd; 891c8a4ce0bSDick Kennedy if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 892c8a4ce0bSDick Kennedy seg1 = 0; 893bd2cdd5eSJames Smart 894bd2cdd5eSJames Smart /* Calculate times relative to start of IO */ 895bd2cdd5eSJames Smart seg2 = (lpfc_ncmd->ts_cmd_wqput - lpfc_ncmd->ts_cmd_start); 896c8a4ce0bSDick Kennedy segsum = seg2; 897c8a4ce0bSDick Kennedy seg3 = lpfc_ncmd->ts_isr_cmpl - lpfc_ncmd->ts_cmd_start; 898c8a4ce0bSDick Kennedy if (segsum > seg3) 899c8a4ce0bSDick Kennedy return; 900c8a4ce0bSDick Kennedy seg3 -= segsum; 901c8a4ce0bSDick Kennedy segsum += seg3; 902c8a4ce0bSDick Kennedy 903c8a4ce0bSDick Kennedy seg4 = lpfc_ncmd->ts_data_nvme - lpfc_ncmd->ts_cmd_start; 904c8a4ce0bSDick Kennedy if (segsum > seg4) 905c8a4ce0bSDick Kennedy return; 906c8a4ce0bSDick Kennedy seg4 -= segsum; 907c8a4ce0bSDick Kennedy 908bd2cdd5eSJames Smart phba->ktime_data_samples++; 909bd2cdd5eSJames Smart phba->ktime_seg1_total += seg1; 910bd2cdd5eSJames Smart if (seg1 < phba->ktime_seg1_min) 911bd2cdd5eSJames Smart phba->ktime_seg1_min = seg1; 912bd2cdd5eSJames Smart else if (seg1 > phba->ktime_seg1_max) 913bd2cdd5eSJames Smart phba->ktime_seg1_max = seg1; 914bd2cdd5eSJames Smart phba->ktime_seg2_total += seg2; 915bd2cdd5eSJames Smart if (seg2 < phba->ktime_seg2_min) 916bd2cdd5eSJames Smart phba->ktime_seg2_min = seg2; 917bd2cdd5eSJames Smart else if (seg2 > phba->ktime_seg2_max) 918bd2cdd5eSJames Smart phba->ktime_seg2_max = seg2; 919bd2cdd5eSJames Smart phba->ktime_seg3_total += seg3; 920bd2cdd5eSJames Smart if (seg3 < phba->ktime_seg3_min) 921bd2cdd5eSJames Smart phba->ktime_seg3_min = seg3; 922bd2cdd5eSJames Smart else if (seg3 > phba->ktime_seg3_max) 923bd2cdd5eSJames Smart phba->ktime_seg3_max = seg3; 924bd2cdd5eSJames Smart phba->ktime_seg4_total += seg4; 925bd2cdd5eSJames Smart if (seg4 < phba->ktime_seg4_min) 926bd2cdd5eSJames Smart phba->ktime_seg4_min = seg4; 927bd2cdd5eSJames Smart else if (seg4 > phba->ktime_seg4_max) 928bd2cdd5eSJames Smart phba->ktime_seg4_max = seg4; 929bd2cdd5eSJames Smart 930bd2cdd5eSJames Smart lpfc_ncmd->ts_last_cmd = 0; 931bd2cdd5eSJames Smart lpfc_ncmd->ts_cmd_start = 0; 932bd2cdd5eSJames Smart lpfc_ncmd->ts_cmd_wqput = 0; 933bd2cdd5eSJames Smart lpfc_ncmd->ts_isr_cmpl = 0; 934bd2cdd5eSJames Smart lpfc_ncmd->ts_data_nvme = 0; 935bd2cdd5eSJames Smart } 936bd2cdd5eSJames Smart #endif 937bd2cdd5eSJames Smart 93801649561SJames Smart /** 93901649561SJames Smart * lpfc_nvme_io_cmd_wqe_cmpl - Complete an NVME-over-FCP IO 94001649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 94101649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 94201649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 94301649561SJames Smart * 94401649561SJames Smart * Driver registers this routine as it io request handler. This 94501649561SJames Smart * routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq 94601649561SJames Smart * data structure to the rport indicated in @lpfc_nvme_rport. 94701649561SJames Smart * 94801649561SJames Smart * Return value : 94901649561SJames Smart * 0 - Success 95001649561SJames Smart * TODO: What are the failure codes. 95101649561SJames Smart **/ 95201649561SJames Smart static void 95301649561SJames Smart lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, 95401649561SJames Smart struct lpfc_wcqe_complete *wcqe) 95501649561SJames Smart { 95601649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd = 95701649561SJames Smart (struct lpfc_nvme_buf *)pwqeIn->context1; 95801649561SJames Smart struct lpfc_vport *vport = pwqeIn->vport; 95901649561SJames Smart struct nvmefc_fcp_req *nCmd; 96001649561SJames Smart struct nvme_fc_ersp_iu *ep; 96101649561SJames Smart struct nvme_fc_cmd_iu *cp; 96201649561SJames Smart struct lpfc_nvme_rport *rport; 96301649561SJames Smart struct lpfc_nodelist *ndlp; 964bbe3012bSJames Smart struct lpfc_nvme_fcpreq_priv *freqpriv; 9654b056682SJames Smart struct lpfc_nvme_lport *lport; 96666a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat; 96701649561SJames Smart unsigned long flags; 96866a210ffSJames Smart uint32_t code, status, idx; 96901649561SJames Smart uint16_t cid, sqhd, data; 97001649561SJames Smart uint32_t *ptr; 97101649561SJames Smart 97201649561SJames Smart /* Sanity check on return of outstanding command */ 97301649561SJames Smart if (!lpfc_ncmd || !lpfc_ncmd->nvmeCmd || !lpfc_ncmd->nrport) { 97401649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 97501649561SJames Smart "6071 Completion pointers bad on wqe %p.\n", 97601649561SJames Smart wcqe); 97701649561SJames Smart return; 97801649561SJames Smart } 97901649561SJames Smart nCmd = lpfc_ncmd->nvmeCmd; 98001649561SJames Smart rport = lpfc_ncmd->nrport; 9814b056682SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe); 98266a210ffSJames Smart 9834b056682SJames Smart lport = (struct lpfc_nvme_lport *)vport->localport->private; 98466a210ffSJames Smart if (lport) { 98566a210ffSJames Smart idx = lpfc_ncmd->cur_iocbq.hba_wqidx; 98666a210ffSJames Smart cstat = &lport->cstat[idx]; 98766a210ffSJames Smart atomic_inc(&cstat->fc4NvmeIoCmpls); 98866a210ffSJames Smart if (status) { 9894b056682SJames Smart if (bf_get(lpfc_wcqe_c_xb, wcqe)) 9904b056682SJames Smart atomic_inc(&lport->cmpl_fcp_xb); 9914b056682SJames Smart atomic_inc(&lport->cmpl_fcp_err); 9924b056682SJames Smart } 99366a210ffSJames Smart } 99401649561SJames Smart 995bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME FCP CMPL: xri x%x stat x%x parm x%x\n", 996bd2cdd5eSJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 9974b056682SJames Smart status, wcqe->parameter); 99801649561SJames Smart /* 99901649561SJames Smart * Catch race where our node has transitioned, but the 100001649561SJames Smart * transport is still transitioning. 100101649561SJames Smart */ 100201649561SJames Smart ndlp = rport->ndlp; 100301649561SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 100401649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 1005c154e750SJames Smart "6061 rport %p, DID x%06x node not ready.\n", 1006c154e750SJames Smart rport, rport->remoteport->port_id); 100701649561SJames Smart 100801649561SJames Smart ndlp = lpfc_findnode_did(vport, rport->remoteport->port_id); 100901649561SJames Smart if (!ndlp) { 101001649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 101101649561SJames Smart "6062 Ignoring NVME cmpl. No ndlp\n"); 101201649561SJames Smart goto out_err; 101301649561SJames Smart } 101401649561SJames Smart } 101501649561SJames Smart 101601649561SJames Smart code = bf_get(lpfc_wcqe_c_code, wcqe); 101701649561SJames Smart if (code == CQE_CODE_NVME_ERSP) { 101801649561SJames Smart /* For this type of CQE, we need to rebuild the rsp */ 101901649561SJames Smart ep = (struct nvme_fc_ersp_iu *)nCmd->rspaddr; 102001649561SJames Smart 102101649561SJames Smart /* 102201649561SJames Smart * Get Command Id from cmd to plug into response. This 102301649561SJames Smart * code is not needed in the next NVME Transport drop. 102401649561SJames Smart */ 102501649561SJames Smart cp = (struct nvme_fc_cmd_iu *)nCmd->cmdaddr; 102601649561SJames Smart cid = cp->sqe.common.command_id; 102701649561SJames Smart 102801649561SJames Smart /* 102901649561SJames Smart * RSN is in CQE word 2 103001649561SJames Smart * SQHD is in CQE Word 3 bits 15:0 103101649561SJames Smart * Cmd Specific info is in CQE Word 1 103201649561SJames Smart * and in CQE Word 0 bits 15:0 103301649561SJames Smart */ 103401649561SJames Smart sqhd = bf_get(lpfc_wcqe_c_sqhead, wcqe); 103501649561SJames Smart 103601649561SJames Smart /* Now lets build the NVME ERSP IU */ 103701649561SJames Smart ep->iu_len = cpu_to_be16(8); 103801649561SJames Smart ep->rsn = wcqe->parameter; 103901649561SJames Smart ep->xfrd_len = cpu_to_be32(nCmd->payload_length); 104001649561SJames Smart ep->rsvd12 = 0; 104101649561SJames Smart ptr = (uint32_t *)&ep->cqe.result.u64; 104201649561SJames Smart *ptr++ = wcqe->total_data_placed; 104301649561SJames Smart data = bf_get(lpfc_wcqe_c_ersp0, wcqe); 104401649561SJames Smart *ptr = (uint32_t)data; 104501649561SJames Smart ep->cqe.sq_head = sqhd; 104601649561SJames Smart ep->cqe.sq_id = nCmd->sqid; 104701649561SJames Smart ep->cqe.command_id = cid; 104801649561SJames Smart ep->cqe.status = 0; 104901649561SJames Smart 105001649561SJames Smart lpfc_ncmd->status = IOSTAT_SUCCESS; 105101649561SJames Smart lpfc_ncmd->result = 0; 105201649561SJames Smart nCmd->rcv_rsplen = LPFC_NVME_ERSP_LEN; 105301649561SJames Smart nCmd->transferred_length = nCmd->payload_length; 105401649561SJames Smart } else { 10554b056682SJames Smart lpfc_ncmd->status = (status & LPFC_IOCB_STATUS_MASK); 1056952c303bSDick Kennedy lpfc_ncmd->result = (wcqe->parameter & IOERR_PARAM_MASK); 105701649561SJames Smart 105801649561SJames Smart /* For NVME, the only failure path that results in an 105901649561SJames Smart * IO error is when the adapter rejects it. All other 106001649561SJames Smart * conditions are a success case and resolved by the 106101649561SJames Smart * transport. 106201649561SJames Smart * IOSTAT_FCP_RSP_ERROR means: 106301649561SJames Smart * 1. Length of data received doesn't match total 106401649561SJames Smart * transfer length in WQE 106501649561SJames Smart * 2. If the RSP payload does NOT match these cases: 106601649561SJames Smart * a. RSP length 12/24 bytes and all zeros 106701649561SJames Smart * b. NVME ERSP 106801649561SJames Smart */ 106901649561SJames Smart switch (lpfc_ncmd->status) { 107001649561SJames Smart case IOSTAT_SUCCESS: 107101649561SJames Smart nCmd->transferred_length = wcqe->total_data_placed; 107201649561SJames Smart nCmd->rcv_rsplen = 0; 107301649561SJames Smart nCmd->status = 0; 107401649561SJames Smart break; 107501649561SJames Smart case IOSTAT_FCP_RSP_ERROR: 107601649561SJames Smart nCmd->transferred_length = wcqe->total_data_placed; 107701649561SJames Smart nCmd->rcv_rsplen = wcqe->parameter; 107801649561SJames Smart nCmd->status = 0; 107901649561SJames Smart /* Sanity check */ 108001649561SJames Smart if (nCmd->rcv_rsplen == LPFC_NVME_ERSP_LEN) 108101649561SJames Smart break; 108201649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 108301649561SJames Smart "6081 NVME Completion Protocol Error: " 108486c67379SJames Smart "xri %x status x%x result x%x " 108586c67379SJames Smart "placed x%x\n", 108686c67379SJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 108701649561SJames Smart lpfc_ncmd->status, lpfc_ncmd->result, 108801649561SJames Smart wcqe->total_data_placed); 108901649561SJames Smart break; 1090952c303bSDick Kennedy case IOSTAT_LOCAL_REJECT: 1091952c303bSDick Kennedy /* Let fall through to set command final state. */ 1092952c303bSDick Kennedy if (lpfc_ncmd->result == IOERR_ABORT_REQUESTED) 1093952c303bSDick Kennedy lpfc_printf_vlog(vport, KERN_INFO, 1094952c303bSDick Kennedy LOG_NVME_IOERR, 1095952c303bSDick Kennedy "6032 Delay Aborted cmd %p " 1096952c303bSDick Kennedy "nvme cmd %p, xri x%x, " 1097952c303bSDick Kennedy "xb %d\n", 1098952c303bSDick Kennedy lpfc_ncmd, nCmd, 1099952c303bSDick Kennedy lpfc_ncmd->cur_iocbq.sli4_xritag, 1100952c303bSDick Kennedy bf_get(lpfc_wcqe_c_xb, wcqe)); 110101649561SJames Smart default: 110201649561SJames Smart out_err: 1103e3246a12SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 110486c67379SJames Smart "6072 NVME Completion Error: xri %x " 110501649561SJames Smart "status x%x result x%x placed x%x\n", 110686c67379SJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 110701649561SJames Smart lpfc_ncmd->status, lpfc_ncmd->result, 110801649561SJames Smart wcqe->total_data_placed); 110901649561SJames Smart nCmd->transferred_length = 0; 111001649561SJames Smart nCmd->rcv_rsplen = 0; 11118e009ce8SJames Smart nCmd->status = NVME_SC_INTERNAL; 111201649561SJames Smart } 111301649561SJames Smart } 111401649561SJames Smart 111501649561SJames Smart /* pick up SLI4 exhange busy condition */ 111601649561SJames Smart if (bf_get(lpfc_wcqe_c_xb, wcqe)) 111701649561SJames Smart lpfc_ncmd->flags |= LPFC_SBUF_XBUSY; 111801649561SJames Smart else 111901649561SJames Smart lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; 112001649561SJames Smart 112101649561SJames Smart if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 112201649561SJames Smart atomic_dec(&ndlp->cmd_pending); 112301649561SJames Smart 112401649561SJames Smart /* Update stats and complete the IO. There is 112501649561SJames Smart * no need for dma unprep because the nvme_transport 112601649561SJames Smart * owns the dma address. 112701649561SJames Smart */ 1128bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1129c8a4ce0bSDick Kennedy if (lpfc_ncmd->ts_cmd_start) { 1130bd2cdd5eSJames Smart lpfc_ncmd->ts_isr_cmpl = pwqeIn->isr_timestamp; 1131bd2cdd5eSJames Smart lpfc_ncmd->ts_data_nvme = ktime_get_ns(); 1132bd2cdd5eSJames Smart phba->ktime_last_cmd = lpfc_ncmd->ts_data_nvme; 1133bd2cdd5eSJames Smart lpfc_nvme_ktime(phba, lpfc_ncmd); 1134bd2cdd5eSJames Smart } 1135bd2cdd5eSJames Smart if (phba->cpucheck_on & LPFC_CHECK_NVME_IO) { 1136bd2cdd5eSJames Smart if (lpfc_ncmd->cpu != smp_processor_id()) 1137bd2cdd5eSJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 1138bd2cdd5eSJames Smart "6701 CPU Check cmpl: " 1139bd2cdd5eSJames Smart "cpu %d expect %d\n", 1140bd2cdd5eSJames Smart smp_processor_id(), lpfc_ncmd->cpu); 1141bd2cdd5eSJames Smart if (lpfc_ncmd->cpu < LPFC_CHECK_CPU_CNT) 1142bd2cdd5eSJames Smart phba->cpucheck_cmpl_io[lpfc_ncmd->cpu]++; 1143bd2cdd5eSJames Smart } 1144bd2cdd5eSJames Smart #endif 1145952c303bSDick Kennedy 1146952c303bSDick Kennedy /* NVME targets need completion held off until the abort exchange 1147add9d6beSJames Smart * completes unless the NVME Rport is getting unregistered. 1148952c303bSDick Kennedy */ 1149add9d6beSJames Smart 11503fd78355SJames Smart if (!(lpfc_ncmd->flags & LPFC_SBUF_XBUSY)) { 115191455b85SJames Smart freqpriv = nCmd->private; 115291455b85SJames Smart freqpriv->nvme_buf = NULL; 115301649561SJames Smart nCmd->done(nCmd); 11543fd78355SJames Smart lpfc_ncmd->nvmeCmd = NULL; 1155add9d6beSJames Smart } 115601649561SJames Smart 115701649561SJames Smart spin_lock_irqsave(&phba->hbalock, flags); 115801649561SJames Smart lpfc_ncmd->nrport = NULL; 115901649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 116001649561SJames Smart 1161952c303bSDick Kennedy /* Call release with XB=1 to queue the IO into the abort list. */ 116201649561SJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 116301649561SJames Smart } 116401649561SJames Smart 116501649561SJames Smart 116601649561SJames Smart /** 116701649561SJames Smart * lpfc_nvme_prep_io_cmd - Issue an NVME-over-FCP IO 116801649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 116901649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 117001649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 117101649561SJames Smart * @lpfc_nvme_fcreq: IO request from nvme fc to driver. 117201649561SJames Smart * @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue 117301649561SJames Smart * 117401649561SJames Smart * Driver registers this routine as it io request handler. This 117501649561SJames Smart * routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq 117601649561SJames Smart * data structure to the rport indicated in @lpfc_nvme_rport. 117701649561SJames Smart * 117801649561SJames Smart * Return value : 117901649561SJames Smart * 0 - Success 118001649561SJames Smart * TODO: What are the failure codes. 118101649561SJames Smart **/ 118201649561SJames Smart static int 118301649561SJames Smart lpfc_nvme_prep_io_cmd(struct lpfc_vport *vport, 118401649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd, 118566a210ffSJames Smart struct lpfc_nodelist *pnode, 118666a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat) 118701649561SJames Smart { 118801649561SJames Smart struct lpfc_hba *phba = vport->phba; 118901649561SJames Smart struct nvmefc_fcp_req *nCmd = lpfc_ncmd->nvmeCmd; 119001649561SJames Smart struct lpfc_iocbq *pwqeq = &(lpfc_ncmd->cur_iocbq); 1191205e8240SJames Smart union lpfc_wqe128 *wqe = &pwqeq->wqe; 119201649561SJames Smart uint32_t req_len; 119301649561SJames Smart 119401649561SJames Smart if (!pnode || !NLP_CHK_NODE_ACT(pnode)) 119501649561SJames Smart return -EINVAL; 119601649561SJames Smart 119701649561SJames Smart /* 119801649561SJames Smart * There are three possibilities here - use scatter-gather segment, use 119901649561SJames Smart * the single mapping, or neither. 120001649561SJames Smart */ 120101649561SJames Smart if (nCmd->sg_cnt) { 120201649561SJames Smart if (nCmd->io_dir == NVMEFC_FCP_WRITE) { 12035fd11085SJames Smart /* From the iwrite template, initialize words 7 - 11 */ 12045fd11085SJames Smart memcpy(&wqe->words[7], 12055fd11085SJames Smart &lpfc_iwrite_cmd_template.words[7], 12065fd11085SJames Smart sizeof(uint32_t) * 5); 12075fd11085SJames Smart 12085fd11085SJames Smart /* Word 4 */ 12095fd11085SJames Smart wqe->fcp_iwrite.total_xfer_len = nCmd->payload_length; 12105fd11085SJames Smart 121101649561SJames Smart /* Word 5 */ 121201649561SJames Smart if ((phba->cfg_nvme_enable_fb) && 121301649561SJames Smart (pnode->nlp_flag & NLP_FIRSTBURST)) { 121401649561SJames Smart req_len = lpfc_ncmd->nvmeCmd->payload_length; 121501649561SJames Smart if (req_len < pnode->nvme_fb_size) 121601649561SJames Smart wqe->fcp_iwrite.initial_xfer_len = 121701649561SJames Smart req_len; 121801649561SJames Smart else 121901649561SJames Smart wqe->fcp_iwrite.initial_xfer_len = 122001649561SJames Smart pnode->nvme_fb_size; 12215fd11085SJames Smart } else { 12225fd11085SJames Smart wqe->fcp_iwrite.initial_xfer_len = 0; 122301649561SJames Smart } 122466a210ffSJames Smart atomic_inc(&cstat->fc4NvmeOutputRequests); 122501649561SJames Smart } else { 12265fd11085SJames Smart /* From the iread template, initialize words 7 - 11 */ 12275fd11085SJames Smart memcpy(&wqe->words[7], 12285fd11085SJames Smart &lpfc_iread_cmd_template.words[7], 12295fd11085SJames Smart sizeof(uint32_t) * 5); 123001649561SJames Smart 12315fd11085SJames Smart /* Word 4 */ 12325fd11085SJames Smart wqe->fcp_iread.total_xfer_len = nCmd->payload_length; 123301649561SJames Smart 12345fd11085SJames Smart /* Word 5 */ 12355fd11085SJames Smart wqe->fcp_iread.rsrvd5 = 0; 123601649561SJames Smart 123766a210ffSJames Smart atomic_inc(&cstat->fc4NvmeInputRequests); 123801649561SJames Smart } 123901649561SJames Smart } else { 12405fd11085SJames Smart /* From the icmnd template, initialize words 4 - 11 */ 12415fd11085SJames Smart memcpy(&wqe->words[4], &lpfc_icmnd_cmd_template.words[4], 12425fd11085SJames Smart sizeof(uint32_t) * 8); 124366a210ffSJames Smart atomic_inc(&cstat->fc4NvmeControlRequests); 124401649561SJames Smart } 124501649561SJames Smart /* 124601649561SJames Smart * Finish initializing those WQE fields that are independent 124701649561SJames Smart * of the nvme_cmnd request_buffer 124801649561SJames Smart */ 124901649561SJames Smart 12505fd11085SJames Smart /* Word 3 */ 12515fd11085SJames Smart bf_set(payload_offset_len, &wqe->fcp_icmd, 12525fd11085SJames Smart (nCmd->rsplen + nCmd->cmdlen)); 12535fd11085SJames Smart 125401649561SJames Smart /* Word 6 */ 125501649561SJames Smart bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, 125601649561SJames Smart phba->sli4_hba.rpi_ids[pnode->nlp_rpi]); 125701649561SJames Smart bf_set(wqe_xri_tag, &wqe->generic.wqe_com, pwqeq->sli4_xritag); 125801649561SJames Smart 125901649561SJames Smart /* Word 8 */ 126001649561SJames Smart wqe->generic.wqe_com.abort_tag = pwqeq->iotag; 126101649561SJames Smart 126201649561SJames Smart /* Word 9 */ 126301649561SJames Smart bf_set(wqe_reqtag, &wqe->generic.wqe_com, pwqeq->iotag); 126401649561SJames Smart 126501649561SJames Smart pwqeq->vport = vport; 126601649561SJames Smart return 0; 126701649561SJames Smart } 126801649561SJames Smart 126901649561SJames Smart 127001649561SJames Smart /** 127101649561SJames Smart * lpfc_nvme_prep_io_dma - Issue an NVME-over-FCP IO 127201649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 127301649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 127401649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 127501649561SJames Smart * @lpfc_nvme_fcreq: IO request from nvme fc to driver. 127601649561SJames Smart * @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue 127701649561SJames Smart * 127801649561SJames Smart * Driver registers this routine as it io request handler. This 127901649561SJames Smart * routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq 128001649561SJames Smart * data structure to the rport indicated in @lpfc_nvme_rport. 128101649561SJames Smart * 128201649561SJames Smart * Return value : 128301649561SJames Smart * 0 - Success 128401649561SJames Smart * TODO: What are the failure codes. 128501649561SJames Smart **/ 128601649561SJames Smart static int 128701649561SJames Smart lpfc_nvme_prep_io_dma(struct lpfc_vport *vport, 128801649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd) 128901649561SJames Smart { 129001649561SJames Smart struct lpfc_hba *phba = vport->phba; 129101649561SJames Smart struct nvmefc_fcp_req *nCmd = lpfc_ncmd->nvmeCmd; 1292205e8240SJames Smart union lpfc_wqe128 *wqe = &lpfc_ncmd->cur_iocbq.wqe; 129301649561SJames Smart struct sli4_sge *sgl = lpfc_ncmd->nvme_sgl; 129401649561SJames Smart struct scatterlist *data_sg; 129501649561SJames Smart struct sli4_sge *first_data_sgl; 12960bc2b7c5SJames Smart struct ulp_bde64 *bde; 129701649561SJames Smart dma_addr_t physaddr; 129801649561SJames Smart uint32_t num_bde = 0; 129901649561SJames Smart uint32_t dma_len; 130001649561SJames Smart uint32_t dma_offset = 0; 130101649561SJames Smart int nseg, i; 130201649561SJames Smart 130301649561SJames Smart /* Fix up the command and response DMA stuff. */ 130401649561SJames Smart lpfc_nvme_adj_fcp_sgls(vport, lpfc_ncmd, nCmd); 130501649561SJames Smart 130601649561SJames Smart /* 130701649561SJames Smart * There are three possibilities here - use scatter-gather segment, use 130801649561SJames Smart * the single mapping, or neither. 130901649561SJames Smart */ 131001649561SJames Smart if (nCmd->sg_cnt) { 131101649561SJames Smart /* 131201649561SJames Smart * Jump over the cmd and rsp SGEs. The fix routine 131301649561SJames Smart * has already adjusted for this. 131401649561SJames Smart */ 131501649561SJames Smart sgl += 2; 131601649561SJames Smart 131701649561SJames Smart first_data_sgl = sgl; 131801649561SJames Smart lpfc_ncmd->seg_cnt = nCmd->sg_cnt; 131981e6a637SJames Smart if (lpfc_ncmd->seg_cnt > lpfc_nvme_template.max_sgl_segments) { 132001649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 132101649561SJames Smart "6058 Too many sg segments from " 132201649561SJames Smart "NVME Transport. Max %d, " 132301649561SJames Smart "nvmeIO sg_cnt %d\n", 132429bfd55aSJames Smart phba->cfg_nvme_seg_cnt + 1, 132501649561SJames Smart lpfc_ncmd->seg_cnt); 132601649561SJames Smart lpfc_ncmd->seg_cnt = 0; 132701649561SJames Smart return 1; 132801649561SJames Smart } 132901649561SJames Smart 133001649561SJames Smart /* 133101649561SJames Smart * The driver established a maximum scatter-gather segment count 133201649561SJames Smart * during probe that limits the number of sg elements in any 133301649561SJames Smart * single nvme command. Just run through the seg_cnt and format 133401649561SJames Smart * the sge's. 133501649561SJames Smart */ 133601649561SJames Smart nseg = nCmd->sg_cnt; 133701649561SJames Smart data_sg = nCmd->first_sgl; 133801649561SJames Smart for (i = 0; i < nseg; i++) { 133901649561SJames Smart if (data_sg == NULL) { 134001649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 134101649561SJames Smart "6059 dptr err %d, nseg %d\n", 134201649561SJames Smart i, nseg); 134301649561SJames Smart lpfc_ncmd->seg_cnt = 0; 134401649561SJames Smart return 1; 134501649561SJames Smart } 134601649561SJames Smart physaddr = data_sg->dma_address; 134701649561SJames Smart dma_len = data_sg->length; 134801649561SJames Smart sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); 134901649561SJames Smart sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); 135001649561SJames Smart sgl->word2 = le32_to_cpu(sgl->word2); 135101649561SJames Smart if ((num_bde + 1) == nseg) 135201649561SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 1); 135301649561SJames Smart else 135401649561SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 0); 135501649561SJames Smart bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); 135601649561SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); 135701649561SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 135801649561SJames Smart sgl->sge_len = cpu_to_le32(dma_len); 135901649561SJames Smart 136001649561SJames Smart dma_offset += dma_len; 136101649561SJames Smart data_sg = sg_next(data_sg); 136201649561SJames Smart sgl++; 136301649561SJames Smart } 13640bc2b7c5SJames Smart if (phba->nvme_embed_pbde) { 13650bc2b7c5SJames Smart /* Use PBDE support for first SGL only, offset == 0 */ 13660bc2b7c5SJames Smart /* Words 13-15 */ 13670bc2b7c5SJames Smart bde = (struct ulp_bde64 *) 13680bc2b7c5SJames Smart &wqe->words[13]; 13690bc2b7c5SJames Smart bde->addrLow = first_data_sgl->addr_lo; 13700bc2b7c5SJames Smart bde->addrHigh = first_data_sgl->addr_hi; 13710bc2b7c5SJames Smart bde->tus.f.bdeSize = 13720bc2b7c5SJames Smart le32_to_cpu(first_data_sgl->sge_len); 13730bc2b7c5SJames Smart bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; 13740bc2b7c5SJames Smart bde->tus.w = cpu_to_le32(bde->tus.w); 13755fd11085SJames Smart /* wqe_pbde is 1 in template */ 13765fd11085SJames Smart } else { 13775fd11085SJames Smart memset(&wqe->words[13], 0, (sizeof(uint32_t) * 3)); 13780bc2b7c5SJames Smart bf_set(wqe_pbde, &wqe->generic.wqe_com, 0); 13795fd11085SJames Smart } 138001649561SJames Smart } else { 13810bc2b7c5SJames Smart bf_set(wqe_pbde, &wqe->generic.wqe_com, 0); 13825fd11085SJames Smart memset(&wqe->words[13], 0, (sizeof(uint32_t) * 3)); 13830bc2b7c5SJames Smart 138401649561SJames Smart /* For this clause to be valid, the payload_length 138501649561SJames Smart * and sg_cnt must zero. 138601649561SJames Smart */ 138701649561SJames Smart if (nCmd->payload_length != 0) { 138801649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 138901649561SJames Smart "6063 NVME DMA Prep Err: sg_cnt %d " 139001649561SJames Smart "payload_length x%x\n", 139101649561SJames Smart nCmd->sg_cnt, nCmd->payload_length); 139201649561SJames Smart return 1; 139301649561SJames Smart } 139401649561SJames Smart } 139501649561SJames Smart return 0; 139601649561SJames Smart } 139701649561SJames Smart 139801649561SJames Smart /** 139901649561SJames Smart * lpfc_nvme_fcp_io_submit - Issue an NVME-over-FCP IO 140001649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 140101649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 140201649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 140301649561SJames Smart * @lpfc_nvme_fcreq: IO request from nvme fc to driver. 140401649561SJames Smart * @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue 140501649561SJames Smart * 140601649561SJames Smart * Driver registers this routine as it io request handler. This 140701649561SJames Smart * routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq 140801649561SJames Smart * data structure to the rport 140901649561SJames Smart indicated in @lpfc_nvme_rport. 141001649561SJames Smart * 141101649561SJames Smart * Return value : 141201649561SJames Smart * 0 - Success 141301649561SJames Smart * TODO: What are the failure codes. 141401649561SJames Smart **/ 141501649561SJames Smart static int 141601649561SJames Smart lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport, 141701649561SJames Smart struct nvme_fc_remote_port *pnvme_rport, 141801649561SJames Smart void *hw_queue_handle, 141901649561SJames Smart struct nvmefc_fcp_req *pnvme_fcreq) 142001649561SJames Smart { 142101649561SJames Smart int ret = 0; 1422cf1a1d3eSJames Smart int expedite = 0; 142366a210ffSJames Smart int idx; 142401649561SJames Smart struct lpfc_nvme_lport *lport; 142566a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat; 142601649561SJames Smart struct lpfc_vport *vport; 142701649561SJames Smart struct lpfc_hba *phba; 142801649561SJames Smart struct lpfc_nodelist *ndlp; 142901649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd; 143001649561SJames Smart struct lpfc_nvme_rport *rport; 143101649561SJames Smart struct lpfc_nvme_qhandle *lpfc_queue_info; 1432c3725bdcSJames Smart struct lpfc_nvme_fcpreq_priv *freqpriv; 1433cf1a1d3eSJames Smart struct nvme_common_command *sqe; 1434bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1435bd2cdd5eSJames Smart uint64_t start = 0; 1436bd2cdd5eSJames Smart #endif 143701649561SJames Smart 1438c3725bdcSJames Smart /* Validate pointers. LLDD fault handling with transport does 1439c3725bdcSJames Smart * have timing races. 1440c3725bdcSJames Smart */ 144101649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 1442c3725bdcSJames Smart if (unlikely(!lport)) { 1443c3725bdcSJames Smart ret = -EINVAL; 1444c3725bdcSJames Smart goto out_fail; 1445c3725bdcSJames Smart } 1446c3725bdcSJames Smart 144701649561SJames Smart vport = lport->vport; 1448c3725bdcSJames Smart 1449c3725bdcSJames Smart if (unlikely(!hw_queue_handle)) { 1450c3725bdcSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 1451c3725bdcSJames Smart "6129 Fail Abort, NULL hw_queue_handle\n"); 1452c3725bdcSJames Smart ret = -EINVAL; 1453c3725bdcSJames Smart goto out_fail; 1454c3725bdcSJames Smart } 1455c3725bdcSJames Smart 145601649561SJames Smart phba = vport->phba; 145701649561SJames Smart 14581abcb371SDick Kennedy if (vport->load_flag & FC_UNLOADING) { 14591abcb371SDick Kennedy ret = -ENODEV; 14601abcb371SDick Kennedy goto out_fail; 14611abcb371SDick Kennedy } 14621abcb371SDick Kennedy 14633386f4bdSJames Smart if (vport->load_flag & FC_UNLOADING) { 14643386f4bdSJames Smart ret = -ENODEV; 14653386f4bdSJames Smart goto out_fail; 14663386f4bdSJames Smart } 14673386f4bdSJames Smart 1468c3725bdcSJames Smart freqpriv = pnvme_fcreq->private; 1469c3725bdcSJames Smart if (unlikely(!freqpriv)) { 1470c3725bdcSJames Smart ret = -EINVAL; 1471b7672ae6SDick Kennedy goto out_fail; 1472b7672ae6SDick Kennedy } 1473b7672ae6SDick Kennedy 1474bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1475bd2cdd5eSJames Smart if (phba->ktime_on) 1476bd2cdd5eSJames Smart start = ktime_get_ns(); 1477bd2cdd5eSJames Smart #endif 147801649561SJames Smart rport = (struct lpfc_nvme_rport *)pnvme_rport->private; 147901649561SJames Smart lpfc_queue_info = (struct lpfc_nvme_qhandle *)hw_queue_handle; 148001649561SJames Smart 148101649561SJames Smart /* 148201649561SJames Smart * Catch race where our node has transitioned, but the 148301649561SJames Smart * transport is still transitioning. 148401649561SJames Smart */ 148501649561SJames Smart ndlp = rport->ndlp; 148601649561SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 148701649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 148801649561SJames Smart "6053 rport %p, ndlp %p, DID x%06x " 148901649561SJames Smart "ndlp not ready.\n", 149001649561SJames Smart rport, ndlp, pnvme_rport->port_id); 149101649561SJames Smart 149201649561SJames Smart ndlp = lpfc_findnode_did(vport, pnvme_rport->port_id); 149301649561SJames Smart if (!ndlp) { 149401649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 149501649561SJames Smart "6066 Missing node for DID %x\n", 149601649561SJames Smart pnvme_rport->port_id); 14974b056682SJames Smart atomic_inc(&lport->xmt_fcp_bad_ndlp); 149801649561SJames Smart ret = -ENODEV; 149901649561SJames Smart goto out_fail; 150001649561SJames Smart } 150101649561SJames Smart } 150201649561SJames Smart 150301649561SJames Smart /* The remote node has to be a mapped target or it's an error. */ 150401649561SJames Smart if ((ndlp->nlp_type & NLP_NVME_TARGET) && 150501649561SJames Smart (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 150601649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR, 150701649561SJames Smart "6036 rport %p, DID x%06x not ready for " 150801649561SJames Smart "IO. State x%x, Type x%x\n", 150901649561SJames Smart rport, pnvme_rport->port_id, 151001649561SJames Smart ndlp->nlp_state, ndlp->nlp_type); 15114b056682SJames Smart atomic_inc(&lport->xmt_fcp_bad_ndlp); 151201649561SJames Smart ret = -ENODEV; 151301649561SJames Smart goto out_fail; 151401649561SJames Smart 151501649561SJames Smart } 151601649561SJames Smart 1517cf1a1d3eSJames Smart /* Currently only NVME Keep alive commands should be expedited 1518cf1a1d3eSJames Smart * if the driver runs out of a resource. These should only be 1519cf1a1d3eSJames Smart * issued on the admin queue, qidx 0 1520cf1a1d3eSJames Smart */ 1521cf1a1d3eSJames Smart if (!lpfc_queue_info->qidx && !pnvme_fcreq->sg_cnt) { 1522cf1a1d3eSJames Smart sqe = &((struct nvme_fc_cmd_iu *) 1523cf1a1d3eSJames Smart pnvme_fcreq->cmdaddr)->sqe.common; 1524cf1a1d3eSJames Smart if (sqe->opcode == nvme_admin_keep_alive) 1525cf1a1d3eSJames Smart expedite = 1; 1526cf1a1d3eSJames Smart } 1527cf1a1d3eSJames Smart 152801649561SJames Smart /* The node is shared with FCP IO, make sure the IO pending count does 152901649561SJames Smart * not exceed the programmed depth. 153001649561SJames Smart */ 1531cf1a1d3eSJames Smart if ((atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) && 1532cf1a1d3eSJames Smart !expedite) { 15334b056682SJames Smart atomic_inc(&lport->xmt_fcp_qdepth); 1534cd22d605SDick Kennedy ret = -EBUSY; 153501649561SJames Smart goto out_fail; 153601649561SJames Smart } 153701649561SJames Smart 1538cf1a1d3eSJames Smart lpfc_ncmd = lpfc_get_nvme_buf(phba, ndlp, expedite); 153901649561SJames Smart if (lpfc_ncmd == NULL) { 15404b056682SJames Smart atomic_inc(&lport->xmt_fcp_noxri); 154101649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 154201649561SJames Smart "6065 driver's buffer pool is empty, " 154301649561SJames Smart "IO failed\n"); 1544cd22d605SDick Kennedy ret = -EBUSY; 154501649561SJames Smart goto out_fail; 154601649561SJames Smart } 1547bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1548c8a4ce0bSDick Kennedy if (start) { 1549bd2cdd5eSJames Smart lpfc_ncmd->ts_cmd_start = start; 1550bd2cdd5eSJames Smart lpfc_ncmd->ts_last_cmd = phba->ktime_last_cmd; 1551c8a4ce0bSDick Kennedy } else { 1552c8a4ce0bSDick Kennedy lpfc_ncmd->ts_cmd_start = 0; 1553bd2cdd5eSJames Smart } 1554bd2cdd5eSJames Smart #endif 155501649561SJames Smart 155601649561SJames Smart /* 155701649561SJames Smart * Store the data needed by the driver to issue, abort, and complete 155801649561SJames Smart * an IO. 155901649561SJames Smart * Do not let the IO hang out forever. There is no midlayer issuing 156001649561SJames Smart * an abort so inform the FW of the maximum IO pending time. 156101649561SJames Smart */ 1562bbe3012bSJames Smart freqpriv->nvme_buf = lpfc_ncmd; 156301649561SJames Smart lpfc_ncmd->nvmeCmd = pnvme_fcreq; 156401649561SJames Smart lpfc_ncmd->nrport = rport; 1565318083adSJames Smart lpfc_ncmd->ndlp = ndlp; 156601649561SJames Smart lpfc_ncmd->start_time = jiffies; 156701649561SJames Smart 156801649561SJames Smart /* 156901649561SJames Smart * Issue the IO on the WQ indicated by index in the hw_queue_handle. 157001649561SJames Smart * This identfier was create in our hardware queue create callback 157101649561SJames Smart * routine. The driver now is dependent on the IO queue steering from 157201649561SJames Smart * the transport. We are trusting the upper NVME layers know which 157301649561SJames Smart * index to use and that they have affinitized a CPU to this hardware 157401649561SJames Smart * queue. A hardware queue maps to a driver MSI-X vector/EQ/CQ/WQ. 157501649561SJames Smart */ 157666a210ffSJames Smart idx = lpfc_queue_info->index; 157766a210ffSJames Smart lpfc_ncmd->cur_iocbq.hba_wqidx = idx; 157866a210ffSJames Smart cstat = &lport->cstat[idx]; 157966a210ffSJames Smart 158066a210ffSJames Smart lpfc_nvme_prep_io_cmd(vport, lpfc_ncmd, ndlp, cstat); 158166a210ffSJames Smart ret = lpfc_nvme_prep_io_dma(vport, lpfc_ncmd); 158266a210ffSJames Smart if (ret) { 158366a210ffSJames Smart ret = -ENOMEM; 158466a210ffSJames Smart goto out_free_nvme_buf; 158566a210ffSJames Smart } 158666a210ffSJames Smart 158766a210ffSJames Smart atomic_inc(&ndlp->cmd_pending); 158801649561SJames Smart 1589bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME FCP XMIT: xri x%x idx %d to %06x\n", 1590bd2cdd5eSJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 1591bd2cdd5eSJames Smart lpfc_queue_info->index, ndlp->nlp_DID); 1592bd2cdd5eSJames Smart 159301649561SJames Smart ret = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, &lpfc_ncmd->cur_iocbq); 159401649561SJames Smart if (ret) { 15954b056682SJames Smart atomic_inc(&lport->xmt_fcp_wqerr); 159601649561SJames Smart atomic_dec(&ndlp->cmd_pending); 1597e3246a12SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 159801649561SJames Smart "6113 FCP could not issue WQE err %x " 159901649561SJames Smart "sid: x%x did: x%x oxid: x%x\n", 160001649561SJames Smart ret, vport->fc_myDID, ndlp->nlp_DID, 160101649561SJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag); 160201649561SJames Smart goto out_free_nvme_buf; 160301649561SJames Smart } 160401649561SJames Smart 1605bd2cdd5eSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1606c8a4ce0bSDick Kennedy if (lpfc_ncmd->ts_cmd_start) 1607bd2cdd5eSJames Smart lpfc_ncmd->ts_cmd_wqput = ktime_get_ns(); 1608bd2cdd5eSJames Smart 1609bd2cdd5eSJames Smart if (phba->cpucheck_on & LPFC_CHECK_NVME_IO) { 1610bd2cdd5eSJames Smart lpfc_ncmd->cpu = smp_processor_id(); 1611bd2cdd5eSJames Smart if (lpfc_ncmd->cpu != lpfc_queue_info->index) { 1612bd2cdd5eSJames Smart /* Check for admin queue */ 1613bd2cdd5eSJames Smart if (lpfc_queue_info->qidx) { 1614bd2cdd5eSJames Smart lpfc_printf_vlog(vport, 1615bd2cdd5eSJames Smart KERN_ERR, LOG_NVME_IOERR, 1616bd2cdd5eSJames Smart "6702 CPU Check cmd: " 1617bd2cdd5eSJames Smart "cpu %d wq %d\n", 1618bd2cdd5eSJames Smart lpfc_ncmd->cpu, 1619bd2cdd5eSJames Smart lpfc_queue_info->index); 1620bd2cdd5eSJames Smart } 1621bd2cdd5eSJames Smart lpfc_ncmd->cpu = lpfc_queue_info->index; 1622bd2cdd5eSJames Smart } 1623bd2cdd5eSJames Smart if (lpfc_ncmd->cpu < LPFC_CHECK_CPU_CNT) 1624bd2cdd5eSJames Smart phba->cpucheck_xmt_io[lpfc_ncmd->cpu]++; 1625bd2cdd5eSJames Smart } 1626bd2cdd5eSJames Smart #endif 162701649561SJames Smart return 0; 162801649561SJames Smart 162901649561SJames Smart out_free_nvme_buf: 16302cee7808SJames Smart if (lpfc_ncmd->nvmeCmd->sg_cnt) { 16312cee7808SJames Smart if (lpfc_ncmd->nvmeCmd->io_dir == NVMEFC_FCP_WRITE) 163266a210ffSJames Smart atomic_dec(&cstat->fc4NvmeOutputRequests); 16332cee7808SJames Smart else 163466a210ffSJames Smart atomic_dec(&cstat->fc4NvmeInputRequests); 16352cee7808SJames Smart } else 163666a210ffSJames Smart atomic_dec(&cstat->fc4NvmeControlRequests); 163701649561SJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 163801649561SJames Smart out_fail: 163901649561SJames Smart return ret; 164001649561SJames Smart } 164101649561SJames Smart 164201649561SJames Smart /** 164301649561SJames Smart * lpfc_nvme_abort_fcreq_cmpl - Complete an NVME FCP abort request. 164401649561SJames Smart * @phba: Pointer to HBA context object 164501649561SJames Smart * @cmdiocb: Pointer to command iocb object. 164601649561SJames Smart * @rspiocb: Pointer to response iocb object. 164701649561SJames Smart * 164801649561SJames Smart * This is the callback function for any NVME FCP IO that was aborted. 164901649561SJames Smart * 165001649561SJames Smart * Return value: 165101649561SJames Smart * None 165201649561SJames Smart **/ 165301649561SJames Smart void 165401649561SJames Smart lpfc_nvme_abort_fcreq_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 165501649561SJames Smart struct lpfc_wcqe_complete *abts_cmpl) 165601649561SJames Smart { 1657e3246a12SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 165801649561SJames Smart "6145 ABORT_XRI_CN completing on rpi x%x " 165901649561SJames Smart "original iotag x%x, abort cmd iotag x%x " 166001649561SJames Smart "req_tag x%x, status x%x, hwstatus x%x\n", 166101649561SJames Smart cmdiocb->iocb.un.acxri.abortContextTag, 166201649561SJames Smart cmdiocb->iocb.un.acxri.abortIoTag, 166301649561SJames Smart cmdiocb->iotag, 166401649561SJames Smart bf_get(lpfc_wcqe_c_request_tag, abts_cmpl), 166501649561SJames Smart bf_get(lpfc_wcqe_c_status, abts_cmpl), 166601649561SJames Smart bf_get(lpfc_wcqe_c_hw_status, abts_cmpl)); 166701649561SJames Smart lpfc_sli_release_iocbq(phba, cmdiocb); 166801649561SJames Smart } 166901649561SJames Smart 167001649561SJames Smart /** 167101649561SJames Smart * lpfc_nvme_fcp_abort - Issue an NVME-over-FCP ABTS 167201649561SJames Smart * @lpfc_pnvme: Pointer to the driver's nvme instance data 167301649561SJames Smart * @lpfc_nvme_lport: Pointer to the driver's local port data 167401649561SJames Smart * @lpfc_nvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq 167501649561SJames Smart * @lpfc_nvme_fcreq: IO request from nvme fc to driver. 167601649561SJames Smart * @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue 167701649561SJames Smart * 167801649561SJames Smart * Driver registers this routine as its nvme request io abort handler. This 167901649561SJames Smart * routine issues an fcp Abort WQE with data from the @lpfc_nvme_fcpreq 168001649561SJames Smart * data structure to the rport indicated in @lpfc_nvme_rport. This routine 168101649561SJames Smart * is executed asynchronously - one the target is validated as "MAPPED" and 168201649561SJames Smart * ready for IO, the driver issues the abort request and returns. 168301649561SJames Smart * 168401649561SJames Smart * Return value: 168501649561SJames Smart * None 168601649561SJames Smart **/ 168701649561SJames Smart static void 168801649561SJames Smart lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport, 168901649561SJames Smart struct nvme_fc_remote_port *pnvme_rport, 169001649561SJames Smart void *hw_queue_handle, 169101649561SJames Smart struct nvmefc_fcp_req *pnvme_fcreq) 169201649561SJames Smart { 169301649561SJames Smart struct lpfc_nvme_lport *lport; 169401649561SJames Smart struct lpfc_vport *vport; 169501649561SJames Smart struct lpfc_hba *phba; 169601649561SJames Smart struct lpfc_nvme_buf *lpfc_nbuf; 169701649561SJames Smart struct lpfc_iocbq *abts_buf; 169801649561SJames Smart struct lpfc_iocbq *nvmereq_wqe; 1699c3725bdcSJames Smart struct lpfc_nvme_fcpreq_priv *freqpriv; 1700205e8240SJames Smart union lpfc_wqe128 *abts_wqe; 170101649561SJames Smart unsigned long flags; 170201649561SJames Smart int ret_val; 170301649561SJames Smart 1704c3725bdcSJames Smart /* Validate pointers. LLDD fault handling with transport does 1705c3725bdcSJames Smart * have timing races. 1706c3725bdcSJames Smart */ 170701649561SJames Smart lport = (struct lpfc_nvme_lport *)pnvme_lport->private; 1708c3725bdcSJames Smart if (unlikely(!lport)) 1709c3725bdcSJames Smart return; 171001649561SJames Smart 1711c3725bdcSJames Smart vport = lport->vport; 1712c3725bdcSJames Smart 1713c3725bdcSJames Smart if (unlikely(!hw_queue_handle)) { 1714c3725bdcSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 1715c3725bdcSJames Smart "6129 Fail Abort, HW Queue Handle NULL.\n"); 1716c3725bdcSJames Smart return; 1717c3725bdcSJames Smart } 1718c3725bdcSJames Smart 1719c3725bdcSJames Smart phba = vport->phba; 1720c3725bdcSJames Smart freqpriv = pnvme_fcreq->private; 1721c3725bdcSJames Smart 1722c3725bdcSJames Smart if (unlikely(!freqpriv)) 1723c3725bdcSJames Smart return; 17243386f4bdSJames Smart if (vport->load_flag & FC_UNLOADING) 17253386f4bdSJames Smart return; 17263386f4bdSJames Smart 172701649561SJames Smart /* Announce entry to new IO submit field. */ 172886c67379SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 172901649561SJames Smart "6002 Abort Request to rport DID x%06x " 173001649561SJames Smart "for nvme_fc_req %p\n", 173101649561SJames Smart pnvme_rport->port_id, 173201649561SJames Smart pnvme_fcreq); 173301649561SJames Smart 173401649561SJames Smart /* If the hba is getting reset, this flag is set. It is 173501649561SJames Smart * cleared when the reset is complete and rings reestablished. 173601649561SJames Smart */ 173701649561SJames Smart spin_lock_irqsave(&phba->hbalock, flags); 173801649561SJames Smart /* driver queued commands are in process of being flushed */ 173901649561SJames Smart if (phba->hba_flag & HBA_NVME_IOQ_FLUSH) { 174001649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 174186c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 174201649561SJames Smart "6139 Driver in reset cleanup - flushing " 174301649561SJames Smart "NVME Req now. hba_flag x%x\n", 174401649561SJames Smart phba->hba_flag); 174501649561SJames Smart return; 174601649561SJames Smart } 174701649561SJames Smart 1748bbe3012bSJames Smart lpfc_nbuf = freqpriv->nvme_buf; 174901649561SJames Smart if (!lpfc_nbuf) { 175001649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 175186c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 175201649561SJames Smart "6140 NVME IO req has no matching lpfc nvme " 175301649561SJames Smart "io buffer. Skipping abort req.\n"); 175401649561SJames Smart return; 175501649561SJames Smart } else if (!lpfc_nbuf->nvmeCmd) { 175601649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 175786c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 175801649561SJames Smart "6141 lpfc NVME IO req has no nvme_fcreq " 175901649561SJames Smart "io buffer. Skipping abort req.\n"); 176001649561SJames Smart return; 176101649561SJames Smart } 17622b7824d0SJames Smart nvmereq_wqe = &lpfc_nbuf->cur_iocbq; 176301649561SJames Smart 176401649561SJames Smart /* 176501649561SJames Smart * The lpfc_nbuf and the mapped nvme_fcreq in the driver's 176601649561SJames Smart * state must match the nvme_fcreq passed by the nvme 176701649561SJames Smart * transport. If they don't match, it is likely the driver 176801649561SJames Smart * has already completed the NVME IO and the nvme transport 176901649561SJames Smart * has not seen it yet. 177001649561SJames Smart */ 177101649561SJames Smart if (lpfc_nbuf->nvmeCmd != pnvme_fcreq) { 177201649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 177386c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 177401649561SJames Smart "6143 NVME req mismatch: " 177501649561SJames Smart "lpfc_nbuf %p nvmeCmd %p, " 17762b7824d0SJames Smart "pnvme_fcreq %p. Skipping Abort xri x%x\n", 177701649561SJames Smart lpfc_nbuf, lpfc_nbuf->nvmeCmd, 17782b7824d0SJames Smart pnvme_fcreq, nvmereq_wqe->sli4_xritag); 177901649561SJames Smart return; 178001649561SJames Smart } 178101649561SJames Smart 178201649561SJames Smart /* Don't abort IOs no longer on the pending queue. */ 178301649561SJames Smart if (!(nvmereq_wqe->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { 178401649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 178586c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 178601649561SJames Smart "6142 NVME IO req %p not queued - skipping " 17872b7824d0SJames Smart "abort req xri x%x\n", 17882b7824d0SJames Smart pnvme_fcreq, nvmereq_wqe->sli4_xritag); 178901649561SJames Smart return; 179001649561SJames Smart } 179101649561SJames Smart 17924b056682SJames Smart atomic_inc(&lport->xmt_fcp_abort); 1793bd2cdd5eSJames Smart lpfc_nvmeio_data(phba, "NVME FCP ABORT: xri x%x idx %d to %06x\n", 1794bd2cdd5eSJames Smart nvmereq_wqe->sli4_xritag, 179500cefeb9SJames Smart nvmereq_wqe->hba_wqidx, pnvme_rport->port_id); 1796bd2cdd5eSJames Smart 179701649561SJames Smart /* Outstanding abort is in progress */ 179801649561SJames Smart if (nvmereq_wqe->iocb_flag & LPFC_DRIVER_ABORTED) { 179901649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 180086c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 180101649561SJames Smart "6144 Outstanding NVME I/O Abort Request " 180201649561SJames Smart "still pending on nvme_fcreq %p, " 18032b7824d0SJames Smart "lpfc_ncmd %p xri x%x\n", 18042b7824d0SJames Smart pnvme_fcreq, lpfc_nbuf, 18052b7824d0SJames Smart nvmereq_wqe->sli4_xritag); 180601649561SJames Smart return; 180701649561SJames Smart } 180801649561SJames Smart 180901649561SJames Smart abts_buf = __lpfc_sli_get_iocbq(phba); 181001649561SJames Smart if (!abts_buf) { 181101649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 181286c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 181301649561SJames Smart "6136 No available abort wqes. Skipping " 18142b7824d0SJames Smart "Abts req for nvme_fcreq %p xri x%x\n", 18152b7824d0SJames Smart pnvme_fcreq, nvmereq_wqe->sli4_xritag); 181601649561SJames Smart return; 181701649561SJames Smart } 181801649561SJames Smart 181901649561SJames Smart /* Ready - mark outstanding as aborted by driver. */ 182001649561SJames Smart nvmereq_wqe->iocb_flag |= LPFC_DRIVER_ABORTED; 182101649561SJames Smart 182201649561SJames Smart /* Complete prepping the abort wqe and issue to the FW. */ 182301649561SJames Smart abts_wqe = &abts_buf->wqe; 182401649561SJames Smart 182501649561SJames Smart /* WQEs are reused. Clear stale data and set key fields to 182601649561SJames Smart * zero like ia, iaab, iaar, xri_tag, and ctxt_tag. 182701649561SJames Smart */ 182801649561SJames Smart memset(abts_wqe, 0, sizeof(union lpfc_wqe)); 182901649561SJames Smart bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG); 183001649561SJames Smart 183101649561SJames Smart /* word 7 */ 183201649561SJames Smart bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0); 183301649561SJames Smart bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX); 183401649561SJames Smart bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com, 183501649561SJames Smart nvmereq_wqe->iocb.ulpClass); 183601649561SJames Smart 183701649561SJames Smart /* word 8 - tell the FW to abort the IO associated with this 183801649561SJames Smart * outstanding exchange ID. 183901649561SJames Smart */ 184001649561SJames Smart abts_wqe->abort_cmd.wqe_com.abort_tag = nvmereq_wqe->sli4_xritag; 184101649561SJames Smart 184201649561SJames Smart /* word 9 - this is the iotag for the abts_wqe completion. */ 184301649561SJames Smart bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com, 184401649561SJames Smart abts_buf->iotag); 184501649561SJames Smart 184601649561SJames Smart /* word 10 */ 184701649561SJames Smart bf_set(wqe_wqid, &abts_wqe->abort_cmd.wqe_com, nvmereq_wqe->hba_wqidx); 184801649561SJames Smart bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1); 184901649561SJames Smart bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE); 185001649561SJames Smart 185101649561SJames Smart /* word 11 */ 185201649561SJames Smart bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND); 185301649561SJames Smart bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1); 185401649561SJames Smart bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT); 185501649561SJames Smart 185601649561SJames Smart /* ABTS WQE must go to the same WQ as the WQE to be aborted */ 185701649561SJames Smart abts_buf->iocb_flag |= LPFC_IO_NVME; 185801649561SJames Smart abts_buf->hba_wqidx = nvmereq_wqe->hba_wqidx; 185901649561SJames Smart abts_buf->vport = vport; 186001649561SJames Smart abts_buf->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl; 186101649561SJames Smart ret_val = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abts_buf); 186201649561SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 1863cd22d605SDick Kennedy if (ret_val) { 186486c67379SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS, 186501649561SJames Smart "6137 Failed abts issue_wqe with status x%x " 186601649561SJames Smart "for nvme_fcreq %p.\n", 186701649561SJames Smart ret_val, pnvme_fcreq); 186801649561SJames Smart lpfc_sli_release_iocbq(phba, abts_buf); 186901649561SJames Smart return; 187001649561SJames Smart } 187101649561SJames Smart 187286c67379SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS, 18732b7824d0SJames Smart "6138 Transport Abort NVME Request Issued for " 187401649561SJames Smart "ox_id x%x on reqtag x%x\n", 187501649561SJames Smart nvmereq_wqe->sli4_xritag, 187601649561SJames Smart abts_buf->iotag); 187701649561SJames Smart } 187801649561SJames Smart 187901649561SJames Smart /* Declare and initialization an instance of the FC NVME template. */ 188001649561SJames Smart static struct nvme_fc_port_template lpfc_nvme_template = { 188101649561SJames Smart /* initiator-based functions */ 188201649561SJames Smart .localport_delete = lpfc_nvme_localport_delete, 188301649561SJames Smart .remoteport_delete = lpfc_nvme_remoteport_delete, 188401649561SJames Smart .create_queue = lpfc_nvme_create_queue, 188501649561SJames Smart .delete_queue = lpfc_nvme_delete_queue, 188601649561SJames Smart .ls_req = lpfc_nvme_ls_req, 188701649561SJames Smart .fcp_io = lpfc_nvme_fcp_io_submit, 188801649561SJames Smart .ls_abort = lpfc_nvme_ls_abort, 188901649561SJames Smart .fcp_abort = lpfc_nvme_fcp_abort, 189001649561SJames Smart 189101649561SJames Smart .max_hw_queues = 1, 189201649561SJames Smart .max_sgl_segments = LPFC_NVME_DEFAULT_SEGS, 189301649561SJames Smart .max_dif_sgl_segments = LPFC_NVME_DEFAULT_SEGS, 189401649561SJames Smart .dma_boundary = 0xFFFFFFFF, 189501649561SJames Smart 189601649561SJames Smart /* Sizes of additional private data for data structures. 189701649561SJames Smart * No use for the last two sizes at this time. 189801649561SJames Smart */ 189901649561SJames Smart .local_priv_sz = sizeof(struct lpfc_nvme_lport), 190001649561SJames Smart .remote_priv_sz = sizeof(struct lpfc_nvme_rport), 190101649561SJames Smart .lsrqst_priv_sz = 0, 1902bbe3012bSJames Smart .fcprqst_priv_sz = sizeof(struct lpfc_nvme_fcpreq_priv), 190301649561SJames Smart }; 190401649561SJames Smart 190501649561SJames Smart /** 190601649561SJames Smart * lpfc_sli4_post_nvme_sgl_block - post a block of nvme sgl list to firmware 190701649561SJames Smart * @phba: pointer to lpfc hba data structure. 190801649561SJames Smart * @nblist: pointer to nvme buffer list. 190901649561SJames Smart * @count: number of scsi buffers on the list. 191001649561SJames Smart * 191101649561SJames Smart * This routine is invoked to post a block of @count scsi sgl pages from a 191201649561SJames Smart * SCSI buffer list @nblist to the HBA using non-embedded mailbox command. 191301649561SJames Smart * No Lock is held. 191401649561SJames Smart * 191501649561SJames Smart **/ 191601649561SJames Smart static int 191701649561SJames Smart lpfc_sli4_post_nvme_sgl_block(struct lpfc_hba *phba, 191801649561SJames Smart struct list_head *nblist, 191901649561SJames Smart int count) 192001649561SJames Smart { 192101649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd; 192201649561SJames Smart struct lpfc_mbx_post_uembed_sgl_page1 *sgl; 192301649561SJames Smart struct sgl_page_pairs *sgl_pg_pairs; 192401649561SJames Smart void *viraddr; 192501649561SJames Smart LPFC_MBOXQ_t *mbox; 192601649561SJames Smart uint32_t reqlen, alloclen, pg_pairs; 192701649561SJames Smart uint32_t mbox_tmo; 192801649561SJames Smart uint16_t xritag_start = 0; 192901649561SJames Smart int rc = 0; 193001649561SJames Smart uint32_t shdr_status, shdr_add_status; 193101649561SJames Smart dma_addr_t pdma_phys_bpl1; 193201649561SJames Smart union lpfc_sli4_cfg_shdr *shdr; 193301649561SJames Smart 193401649561SJames Smart /* Calculate the requested length of the dma memory */ 193501649561SJames Smart reqlen = count * sizeof(struct sgl_page_pairs) + 193601649561SJames Smart sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); 193701649561SJames Smart if (reqlen > SLI4_PAGE_SIZE) { 193801649561SJames Smart lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 193901649561SJames Smart "6118 Block sgl registration required DMA " 194001649561SJames Smart "size (%d) great than a page\n", reqlen); 194101649561SJames Smart return -ENOMEM; 194201649561SJames Smart } 194301649561SJames Smart mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 194401649561SJames Smart if (!mbox) { 194501649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 194601649561SJames Smart "6119 Failed to allocate mbox cmd memory\n"); 194701649561SJames Smart return -ENOMEM; 194801649561SJames Smart } 194901649561SJames Smart 195001649561SJames Smart /* Allocate DMA memory and set up the non-embedded mailbox command */ 195101649561SJames Smart alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 195201649561SJames Smart LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, 195301649561SJames Smart LPFC_SLI4_MBX_NEMBED); 195401649561SJames Smart 195501649561SJames Smart if (alloclen < reqlen) { 195601649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 195701649561SJames Smart "6120 Allocated DMA memory size (%d) is " 195801649561SJames Smart "less than the requested DMA memory " 195901649561SJames Smart "size (%d)\n", alloclen, reqlen); 196001649561SJames Smart lpfc_sli4_mbox_cmd_free(phba, mbox); 196101649561SJames Smart return -ENOMEM; 196201649561SJames Smart } 196301649561SJames Smart 196401649561SJames Smart /* Get the first SGE entry from the non-embedded DMA memory */ 196501649561SJames Smart viraddr = mbox->sge_array->addr[0]; 196601649561SJames Smart 196701649561SJames Smart /* Set up the SGL pages in the non-embedded DMA pages */ 196801649561SJames Smart sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; 196901649561SJames Smart sgl_pg_pairs = &sgl->sgl_pg_pairs; 197001649561SJames Smart 197101649561SJames Smart pg_pairs = 0; 197201649561SJames Smart list_for_each_entry(lpfc_ncmd, nblist, list) { 197301649561SJames Smart /* Set up the sge entry */ 197401649561SJames Smart sgl_pg_pairs->sgl_pg0_addr_lo = 197501649561SJames Smart cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl)); 197601649561SJames Smart sgl_pg_pairs->sgl_pg0_addr_hi = 197701649561SJames Smart cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl)); 197801649561SJames Smart if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) 197901649561SJames Smart pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl + 198001649561SJames Smart SGL_PAGE_SIZE; 198101649561SJames Smart else 198201649561SJames Smart pdma_phys_bpl1 = 0; 198301649561SJames Smart sgl_pg_pairs->sgl_pg1_addr_lo = 198401649561SJames Smart cpu_to_le32(putPaddrLow(pdma_phys_bpl1)); 198501649561SJames Smart sgl_pg_pairs->sgl_pg1_addr_hi = 198601649561SJames Smart cpu_to_le32(putPaddrHigh(pdma_phys_bpl1)); 198701649561SJames Smart /* Keep the first xritag on the list */ 198801649561SJames Smart if (pg_pairs == 0) 198901649561SJames Smart xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag; 199001649561SJames Smart sgl_pg_pairs++; 199101649561SJames Smart pg_pairs++; 199201649561SJames Smart } 199301649561SJames Smart bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); 199401649561SJames Smart bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); 199501649561SJames Smart /* Perform endian conversion if necessary */ 199601649561SJames Smart sgl->word0 = cpu_to_le32(sgl->word0); 199701649561SJames Smart 199801649561SJames Smart if (!phba->sli4_hba.intr_enable) 199901649561SJames Smart rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 200001649561SJames Smart else { 200101649561SJames Smart mbox_tmo = lpfc_mbox_tmo_val(phba, mbox); 200201649561SJames Smart rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 200301649561SJames Smart } 200401649561SJames Smart shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr; 200501649561SJames Smart shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 200601649561SJames Smart shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 200701649561SJames Smart if (rc != MBX_TIMEOUT) 200801649561SJames Smart lpfc_sli4_mbox_cmd_free(phba, mbox); 200901649561SJames Smart if (shdr_status || shdr_add_status || rc) { 201001649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 201101649561SJames Smart "6125 POST_SGL_BLOCK mailbox command failed " 201201649561SJames Smart "status x%x add_status x%x mbx status x%x\n", 201301649561SJames Smart shdr_status, shdr_add_status, rc); 201401649561SJames Smart rc = -ENXIO; 201501649561SJames Smart } 201601649561SJames Smart return rc; 201701649561SJames Smart } 201801649561SJames Smart 201901649561SJames Smart /** 202001649561SJames Smart * lpfc_post_nvme_sgl_list - Post blocks of nvme buffer sgls from a list 202101649561SJames Smart * @phba: pointer to lpfc hba data structure. 202201649561SJames Smart * @post_nblist: pointer to the nvme buffer list. 202301649561SJames Smart * 202401649561SJames Smart * This routine walks a list of nvme buffers that was passed in. It attempts 202501649561SJames Smart * to construct blocks of nvme buffer sgls which contains contiguous xris and 202601649561SJames Smart * uses the non-embedded SGL block post mailbox commands to post to the port. 202701649561SJames Smart * For single NVME buffer sgl with non-contiguous xri, if any, it shall use 202801649561SJames Smart * embedded SGL post mailbox command for posting. The @post_nblist passed in 202901649561SJames Smart * must be local list, thus no lock is needed when manipulate the list. 203001649561SJames Smart * 203101649561SJames Smart * Returns: 0 = failure, non-zero number of successfully posted buffers. 203201649561SJames Smart **/ 203301649561SJames Smart static int 203401649561SJames Smart lpfc_post_nvme_sgl_list(struct lpfc_hba *phba, 203501649561SJames Smart struct list_head *post_nblist, int sb_count) 203601649561SJames Smart { 203701649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 203801649561SJames Smart int status, sgl_size; 203901649561SJames Smart int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0; 204001649561SJames Smart dma_addr_t pdma_phys_sgl1; 204101649561SJames Smart int last_xritag = NO_XRI; 204201649561SJames Smart int cur_xritag; 204301649561SJames Smart LIST_HEAD(prep_nblist); 204401649561SJames Smart LIST_HEAD(blck_nblist); 204501649561SJames Smart LIST_HEAD(nvme_nblist); 204601649561SJames Smart 204701649561SJames Smart /* sanity check */ 204801649561SJames Smart if (sb_count <= 0) 204901649561SJames Smart return -EINVAL; 205001649561SJames Smart 205101649561SJames Smart sgl_size = phba->cfg_sg_dma_buf_size; 205201649561SJames Smart 205301649561SJames Smart list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) { 205401649561SJames Smart list_del_init(&lpfc_ncmd->list); 205501649561SJames Smart block_cnt++; 205601649561SJames Smart if ((last_xritag != NO_XRI) && 205701649561SJames Smart (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) { 205801649561SJames Smart /* a hole in xri block, form a sgl posting block */ 205901649561SJames Smart list_splice_init(&prep_nblist, &blck_nblist); 206001649561SJames Smart post_cnt = block_cnt - 1; 206101649561SJames Smart /* prepare list for next posting block */ 206201649561SJames Smart list_add_tail(&lpfc_ncmd->list, &prep_nblist); 206301649561SJames Smart block_cnt = 1; 206401649561SJames Smart } else { 206501649561SJames Smart /* prepare list for next posting block */ 206601649561SJames Smart list_add_tail(&lpfc_ncmd->list, &prep_nblist); 206701649561SJames Smart /* enough sgls for non-embed sgl mbox command */ 206801649561SJames Smart if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) { 206901649561SJames Smart list_splice_init(&prep_nblist, &blck_nblist); 207001649561SJames Smart post_cnt = block_cnt; 207101649561SJames Smart block_cnt = 0; 207201649561SJames Smart } 207301649561SJames Smart } 207401649561SJames Smart num_posting++; 207501649561SJames Smart last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag; 207601649561SJames Smart 207701649561SJames Smart /* end of repost sgl list condition for NVME buffers */ 207801649561SJames Smart if (num_posting == sb_count) { 207901649561SJames Smart if (post_cnt == 0) { 208001649561SJames Smart /* last sgl posting block */ 208101649561SJames Smart list_splice_init(&prep_nblist, &blck_nblist); 208201649561SJames Smart post_cnt = block_cnt; 208301649561SJames Smart } else if (block_cnt == 1) { 208401649561SJames Smart /* last single sgl with non-contiguous xri */ 208501649561SJames Smart if (sgl_size > SGL_PAGE_SIZE) 208601649561SJames Smart pdma_phys_sgl1 = 208701649561SJames Smart lpfc_ncmd->dma_phys_sgl + 208801649561SJames Smart SGL_PAGE_SIZE; 208901649561SJames Smart else 209001649561SJames Smart pdma_phys_sgl1 = 0; 209101649561SJames Smart cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag; 209201649561SJames Smart status = lpfc_sli4_post_sgl(phba, 209301649561SJames Smart lpfc_ncmd->dma_phys_sgl, 209401649561SJames Smart pdma_phys_sgl1, cur_xritag); 209501649561SJames Smart if (status) { 209601649561SJames Smart /* failure, put on abort nvme list */ 2097318083adSJames Smart lpfc_ncmd->flags |= LPFC_SBUF_XBUSY; 209801649561SJames Smart } else { 209901649561SJames Smart /* success, put on NVME buffer list */ 2100318083adSJames Smart lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; 210101649561SJames Smart lpfc_ncmd->status = IOSTAT_SUCCESS; 210201649561SJames Smart num_posted++; 210301649561SJames Smart } 210401649561SJames Smart /* success, put on NVME buffer sgl list */ 210501649561SJames Smart list_add_tail(&lpfc_ncmd->list, &nvme_nblist); 210601649561SJames Smart } 210701649561SJames Smart } 210801649561SJames Smart 210901649561SJames Smart /* continue until a nembed page worth of sgls */ 211001649561SJames Smart if (post_cnt == 0) 211101649561SJames Smart continue; 211201649561SJames Smart 211301649561SJames Smart /* post block of NVME buffer list sgls */ 211401649561SJames Smart status = lpfc_sli4_post_nvme_sgl_block(phba, &blck_nblist, 211501649561SJames Smart post_cnt); 211601649561SJames Smart 211701649561SJames Smart /* don't reset xirtag due to hole in xri block */ 211801649561SJames Smart if (block_cnt == 0) 211901649561SJames Smart last_xritag = NO_XRI; 212001649561SJames Smart 212101649561SJames Smart /* reset NVME buffer post count for next round of posting */ 212201649561SJames Smart post_cnt = 0; 212301649561SJames Smart 212401649561SJames Smart /* put posted NVME buffer-sgl posted on NVME buffer sgl list */ 212501649561SJames Smart while (!list_empty(&blck_nblist)) { 212601649561SJames Smart list_remove_head(&blck_nblist, lpfc_ncmd, 212701649561SJames Smart struct lpfc_nvme_buf, list); 212801649561SJames Smart if (status) { 212901649561SJames Smart /* failure, put on abort nvme list */ 2130318083adSJames Smart lpfc_ncmd->flags |= LPFC_SBUF_XBUSY; 213101649561SJames Smart } else { 213201649561SJames Smart /* success, put on NVME buffer list */ 2133318083adSJames Smart lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; 213401649561SJames Smart lpfc_ncmd->status = IOSTAT_SUCCESS; 213501649561SJames Smart num_posted++; 213601649561SJames Smart } 213701649561SJames Smart list_add_tail(&lpfc_ncmd->list, &nvme_nblist); 213801649561SJames Smart } 213901649561SJames Smart } 214001649561SJames Smart /* Push NVME buffers with sgl posted to the available list */ 214101649561SJames Smart while (!list_empty(&nvme_nblist)) { 214201649561SJames Smart list_remove_head(&nvme_nblist, lpfc_ncmd, 214301649561SJames Smart struct lpfc_nvme_buf, list); 214401649561SJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 214501649561SJames Smart } 214601649561SJames Smart return num_posted; 214701649561SJames Smart } 214801649561SJames Smart 214901649561SJames Smart /** 215001649561SJames Smart * lpfc_repost_nvme_sgl_list - Repost all the allocated nvme buffer sgls 215101649561SJames Smart * @phba: pointer to lpfc hba data structure. 215201649561SJames Smart * 215301649561SJames Smart * This routine walks the list of nvme buffers that have been allocated and 215401649561SJames Smart * repost them to the port by using SGL block post. This is needed after a 215501649561SJames Smart * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine 215601649561SJames Smart * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list 215701649561SJames Smart * to the lpfc_nvme_buf_list. If the repost fails, reject all nvme buffers. 215801649561SJames Smart * 215901649561SJames Smart * Returns: 0 = success, non-zero failure. 216001649561SJames Smart **/ 216101649561SJames Smart int 216201649561SJames Smart lpfc_repost_nvme_sgl_list(struct lpfc_hba *phba) 216301649561SJames Smart { 216401649561SJames Smart LIST_HEAD(post_nblist); 216501649561SJames Smart int num_posted, rc = 0; 216601649561SJames Smart 216701649561SJames Smart /* get all NVME buffers need to repost to a local list */ 216801649561SJames Smart spin_lock_irq(&phba->nvme_buf_list_get_lock); 216901649561SJames Smart spin_lock(&phba->nvme_buf_list_put_lock); 217001649561SJames Smart list_splice_init(&phba->lpfc_nvme_buf_list_get, &post_nblist); 217101649561SJames Smart list_splice(&phba->lpfc_nvme_buf_list_put, &post_nblist); 2172cf1a1d3eSJames Smart phba->get_nvme_bufs = 0; 2173cf1a1d3eSJames Smart phba->put_nvme_bufs = 0; 217401649561SJames Smart spin_unlock(&phba->nvme_buf_list_put_lock); 217501649561SJames Smart spin_unlock_irq(&phba->nvme_buf_list_get_lock); 217601649561SJames Smart 217701649561SJames Smart /* post the list of nvme buffer sgls to port if available */ 217801649561SJames Smart if (!list_empty(&post_nblist)) { 217901649561SJames Smart num_posted = lpfc_post_nvme_sgl_list(phba, &post_nblist, 218001649561SJames Smart phba->sli4_hba.nvme_xri_cnt); 218101649561SJames Smart /* failed to post any nvme buffer, return error */ 218201649561SJames Smart if (num_posted == 0) 218301649561SJames Smart rc = -EIO; 218401649561SJames Smart } 218501649561SJames Smart return rc; 218601649561SJames Smart } 218701649561SJames Smart 218801649561SJames Smart /** 218901649561SJames Smart * lpfc_new_nvme_buf - Scsi buffer allocator for HBA with SLI4 IF spec 219001649561SJames Smart * @vport: The virtual port for which this call being executed. 219101649561SJames Smart * @num_to_allocate: The requested number of buffers to allocate. 219201649561SJames Smart * 219301649561SJames Smart * This routine allocates nvme buffers for device with SLI-4 interface spec, 219401649561SJames Smart * the nvme buffer contains all the necessary information needed to initiate 219501649561SJames Smart * a NVME I/O. After allocating up to @num_to_allocate NVME buffers and put 219601649561SJames Smart * them on a list, it post them to the port by using SGL block post. 219701649561SJames Smart * 219801649561SJames Smart * Return codes: 219901649561SJames Smart * int - number of nvme buffers that were allocated and posted. 220001649561SJames Smart * 0 = failure, less than num_to_alloc is a partial failure. 220101649561SJames Smart **/ 220201649561SJames Smart static int 220301649561SJames Smart lpfc_new_nvme_buf(struct lpfc_vport *vport, int num_to_alloc) 220401649561SJames Smart { 220501649561SJames Smart struct lpfc_hba *phba = vport->phba; 220601649561SJames Smart struct lpfc_nvme_buf *lpfc_ncmd; 220701649561SJames Smart struct lpfc_iocbq *pwqeq; 220801649561SJames Smart union lpfc_wqe128 *wqe; 220901649561SJames Smart struct sli4_sge *sgl; 221001649561SJames Smart dma_addr_t pdma_phys_sgl; 221101649561SJames Smart uint16_t iotag, lxri = 0; 221201649561SJames Smart int bcnt, num_posted, sgl_size; 221301649561SJames Smart LIST_HEAD(prep_nblist); 221401649561SJames Smart LIST_HEAD(post_nblist); 221501649561SJames Smart LIST_HEAD(nvme_nblist); 221601649561SJames Smart 221701649561SJames Smart sgl_size = phba->cfg_sg_dma_buf_size; 221801649561SJames Smart 221901649561SJames Smart for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { 222001649561SJames Smart lpfc_ncmd = kzalloc(sizeof(struct lpfc_nvme_buf), GFP_KERNEL); 222101649561SJames Smart if (!lpfc_ncmd) 222201649561SJames Smart break; 222301649561SJames Smart /* 222401649561SJames Smart * Get memory from the pci pool to map the virt space to 222501649561SJames Smart * pci bus space for an I/O. The DMA buffer includes the 222601649561SJames Smart * number of SGE's necessary to support the sg_tablesize. 222701649561SJames Smart */ 2228df2f7729SThomas Meyer lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool, 222901649561SJames Smart GFP_KERNEL, 223001649561SJames Smart &lpfc_ncmd->dma_handle); 223101649561SJames Smart if (!lpfc_ncmd->data) { 223201649561SJames Smart kfree(lpfc_ncmd); 223301649561SJames Smart break; 223401649561SJames Smart } 223501649561SJames Smart 223601649561SJames Smart lxri = lpfc_sli4_next_xritag(phba); 223701649561SJames Smart if (lxri == NO_XRI) { 2238771db5c0SRomain Perier dma_pool_free(phba->lpfc_sg_dma_buf_pool, 223901649561SJames Smart lpfc_ncmd->data, lpfc_ncmd->dma_handle); 224001649561SJames Smart kfree(lpfc_ncmd); 224101649561SJames Smart break; 224201649561SJames Smart } 224301649561SJames Smart pwqeq = &(lpfc_ncmd->cur_iocbq); 2244205e8240SJames Smart wqe = &pwqeq->wqe; 224501649561SJames Smart 224601649561SJames Smart /* Allocate iotag for lpfc_ncmd->cur_iocbq. */ 224701649561SJames Smart iotag = lpfc_sli_next_iotag(phba, pwqeq); 224801649561SJames Smart if (iotag == 0) { 2249771db5c0SRomain Perier dma_pool_free(phba->lpfc_sg_dma_buf_pool, 225001649561SJames Smart lpfc_ncmd->data, lpfc_ncmd->dma_handle); 225101649561SJames Smart kfree(lpfc_ncmd); 225201649561SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 225301649561SJames Smart "6121 Failed to allocated IOTAG for" 225401649561SJames Smart " XRI:0x%x\n", lxri); 225501649561SJames Smart lpfc_sli4_free_xri(phba, lxri); 225601649561SJames Smart break; 225701649561SJames Smart } 225801649561SJames Smart pwqeq->sli4_lxritag = lxri; 225901649561SJames Smart pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 226001649561SJames Smart pwqeq->iocb_flag |= LPFC_IO_NVME; 226101649561SJames Smart pwqeq->context1 = lpfc_ncmd; 226201649561SJames Smart pwqeq->wqe_cmpl = lpfc_nvme_io_cmd_wqe_cmpl; 226301649561SJames Smart 226401649561SJames Smart /* Initialize local short-hand pointers. */ 226501649561SJames Smart lpfc_ncmd->nvme_sgl = lpfc_ncmd->data; 226601649561SJames Smart sgl = lpfc_ncmd->nvme_sgl; 226701649561SJames Smart pdma_phys_sgl = lpfc_ncmd->dma_handle; 226801649561SJames Smart lpfc_ncmd->dma_phys_sgl = pdma_phys_sgl; 226901649561SJames Smart 227001649561SJames Smart /* Rsp SGE will be filled in when we rcv an IO 227101649561SJames Smart * from the NVME Layer to be sent. 227201649561SJames Smart * The cmd is going to be embedded so we need a SKIP SGE. 227301649561SJames Smart */ 227401649561SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP); 227501649561SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 0); 227601649561SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 227701649561SJames Smart /* Fill in word 3 / sgl_len during cmd submission */ 227801649561SJames Smart 227901649561SJames Smart lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd; 228001649561SJames Smart 22815fd11085SJames Smart /* Initialize WQE */ 22825fd11085SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe)); 228301649561SJames Smart 228401649561SJames Smart /* add the nvme buffer to a post list */ 228501649561SJames Smart list_add_tail(&lpfc_ncmd->list, &post_nblist); 228601649561SJames Smart spin_lock_irq(&phba->nvme_buf_list_get_lock); 228701649561SJames Smart phba->sli4_hba.nvme_xri_cnt++; 228801649561SJames Smart spin_unlock_irq(&phba->nvme_buf_list_get_lock); 228901649561SJames Smart } 229001649561SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 229101649561SJames Smart "6114 Allocate %d out of %d requested new NVME " 229201649561SJames Smart "buffers\n", bcnt, num_to_alloc); 229301649561SJames Smart 229401649561SJames Smart /* post the list of nvme buffer sgls to port if available */ 229501649561SJames Smart if (!list_empty(&post_nblist)) 229601649561SJames Smart num_posted = lpfc_post_nvme_sgl_list(phba, 229701649561SJames Smart &post_nblist, bcnt); 229801649561SJames Smart else 229901649561SJames Smart num_posted = 0; 230001649561SJames Smart 230101649561SJames Smart return num_posted; 230201649561SJames Smart } 230301649561SJames Smart 2304cf1a1d3eSJames Smart static inline struct lpfc_nvme_buf * 2305cf1a1d3eSJames Smart lpfc_nvme_buf(struct lpfc_hba *phba) 2306cf1a1d3eSJames Smart { 2307cf1a1d3eSJames Smart struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 2308cf1a1d3eSJames Smart 2309cf1a1d3eSJames Smart list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 2310cf1a1d3eSJames Smart &phba->lpfc_nvme_buf_list_get, list) { 2311cf1a1d3eSJames Smart list_del_init(&lpfc_ncmd->list); 2312cf1a1d3eSJames Smart phba->get_nvme_bufs--; 2313cf1a1d3eSJames Smart return lpfc_ncmd; 2314cf1a1d3eSJames Smart } 2315cf1a1d3eSJames Smart return NULL; 2316cf1a1d3eSJames Smart } 2317cf1a1d3eSJames Smart 231801649561SJames Smart /** 231901649561SJames Smart * lpfc_get_nvme_buf - Get a nvme buffer from lpfc_nvme_buf_list of the HBA 232001649561SJames Smart * @phba: The HBA for which this call is being executed. 232101649561SJames Smart * 232201649561SJames Smart * This routine removes a nvme buffer from head of @phba lpfc_nvme_buf_list list 232301649561SJames Smart * and returns to caller. 232401649561SJames Smart * 232501649561SJames Smart * Return codes: 232601649561SJames Smart * NULL - Error 232701649561SJames Smart * Pointer to lpfc_nvme_buf - Success 232801649561SJames Smart **/ 232901649561SJames Smart static struct lpfc_nvme_buf * 2330cf1a1d3eSJames Smart lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, 2331cf1a1d3eSJames Smart int expedite) 233201649561SJames Smart { 2333cf1a1d3eSJames Smart struct lpfc_nvme_buf *lpfc_ncmd = NULL; 233401649561SJames Smart unsigned long iflag = 0; 233501649561SJames Smart 233601649561SJames Smart spin_lock_irqsave(&phba->nvme_buf_list_get_lock, iflag); 2337cf1a1d3eSJames Smart if (phba->get_nvme_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite) 2338cf1a1d3eSJames Smart lpfc_ncmd = lpfc_nvme_buf(phba); 2339cf1a1d3eSJames Smart if (!lpfc_ncmd) { 234001649561SJames Smart spin_lock(&phba->nvme_buf_list_put_lock); 234101649561SJames Smart list_splice(&phba->lpfc_nvme_buf_list_put, 234201649561SJames Smart &phba->lpfc_nvme_buf_list_get); 2343cf1a1d3eSJames Smart phba->get_nvme_bufs += phba->put_nvme_bufs; 234401649561SJames Smart INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 2345cf1a1d3eSJames Smart phba->put_nvme_bufs = 0; 234601649561SJames Smart spin_unlock(&phba->nvme_buf_list_put_lock); 2347cf1a1d3eSJames Smart if (phba->get_nvme_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite) 2348cf1a1d3eSJames Smart lpfc_ncmd = lpfc_nvme_buf(phba); 234901649561SJames Smart } 235001649561SJames Smart spin_unlock_irqrestore(&phba->nvme_buf_list_get_lock, iflag); 235101649561SJames Smart return lpfc_ncmd; 235201649561SJames Smart } 235301649561SJames Smart 235401649561SJames Smart /** 235501649561SJames Smart * lpfc_release_nvme_buf: Return a nvme buffer back to hba nvme buf list. 235601649561SJames Smart * @phba: The Hba for which this call is being executed. 235701649561SJames Smart * @lpfc_ncmd: The nvme buffer which is being released. 235801649561SJames Smart * 235901649561SJames Smart * This routine releases @lpfc_ncmd nvme buffer by adding it to tail of @phba 236001649561SJames Smart * lpfc_nvme_buf_list list. For SLI4 XRI's are tied to the nvme buffer 236101649561SJames Smart * and cannot be reused for at least RA_TOV amount of time if it was 236201649561SJames Smart * aborted. 236301649561SJames Smart **/ 236401649561SJames Smart static void 236501649561SJames Smart lpfc_release_nvme_buf(struct lpfc_hba *phba, struct lpfc_nvme_buf *lpfc_ncmd) 236601649561SJames Smart { 236701649561SJames Smart unsigned long iflag = 0; 236801649561SJames Smart 236901649561SJames Smart lpfc_ncmd->nonsg_phys = 0; 2370318083adSJames Smart if (lpfc_ncmd->flags & LPFC_SBUF_XBUSY) { 237186c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 237286c67379SJames Smart "6310 XB release deferred for " 237386c67379SJames Smart "ox_id x%x on reqtag x%x\n", 237486c67379SJames Smart lpfc_ncmd->cur_iocbq.sli4_xritag, 237586c67379SJames Smart lpfc_ncmd->cur_iocbq.iotag); 237686c67379SJames Smart 237701649561SJames Smart spin_lock_irqsave(&phba->sli4_hba.abts_nvme_buf_list_lock, 237801649561SJames Smart iflag); 237901649561SJames Smart list_add_tail(&lpfc_ncmd->list, 238001649561SJames Smart &phba->sli4_hba.lpfc_abts_nvme_buf_list); 238101649561SJames Smart spin_unlock_irqrestore(&phba->sli4_hba.abts_nvme_buf_list_lock, 238201649561SJames Smart iflag); 238301649561SJames Smart } else { 238401649561SJames Smart lpfc_ncmd->nvmeCmd = NULL; 238501649561SJames Smart lpfc_ncmd->cur_iocbq.iocb_flag = LPFC_IO_NVME; 238601649561SJames Smart spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); 238701649561SJames Smart list_add_tail(&lpfc_ncmd->list, &phba->lpfc_nvme_buf_list_put); 2388cf1a1d3eSJames Smart phba->put_nvme_bufs++; 238901649561SJames Smart spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); 239001649561SJames Smart } 239101649561SJames Smart } 239201649561SJames Smart 239301649561SJames Smart /** 239401649561SJames Smart * lpfc_nvme_create_localport - Create/Bind an nvme localport instance. 239501649561SJames Smart * @pvport - the lpfc_vport instance requesting a localport. 239601649561SJames Smart * 239701649561SJames Smart * This routine is invoked to create an nvme localport instance to bind 239801649561SJames Smart * to the nvme_fc_transport. It is called once during driver load 239901649561SJames Smart * like lpfc_create_shost after all other services are initialized. 240001649561SJames Smart * It requires a vport, vpi, and wwns at call time. Other localport 240101649561SJames Smart * parameters are modified as the driver's FCID and the Fabric WWN 240201649561SJames Smart * are established. 240301649561SJames Smart * 240401649561SJames Smart * Return codes 240501649561SJames Smart * 0 - successful 240601649561SJames Smart * -ENOMEM - no heap memory available 240701649561SJames Smart * other values - from nvme registration upcall 240801649561SJames Smart **/ 240901649561SJames Smart int 241001649561SJames Smart lpfc_nvme_create_localport(struct lpfc_vport *vport) 241101649561SJames Smart { 2412166d7211SJames Smart int ret = 0; 241301649561SJames Smart struct lpfc_hba *phba = vport->phba; 241401649561SJames Smart struct nvme_fc_port_info nfcp_info; 241501649561SJames Smart struct nvme_fc_local_port *localport; 241601649561SJames Smart struct lpfc_nvme_lport *lport; 241766a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat; 241866a210ffSJames Smart int len, i; 241901649561SJames Smart 242001649561SJames Smart /* Initialize this localport instance. The vport wwn usage ensures 242101649561SJames Smart * that NPIV is accounted for. 242201649561SJames Smart */ 242301649561SJames Smart memset(&nfcp_info, 0, sizeof(struct nvme_fc_port_info)); 242401649561SJames Smart nfcp_info.port_role = FC_PORT_ROLE_NVME_INITIATOR; 242501649561SJames Smart nfcp_info.node_name = wwn_to_u64(vport->fc_nodename.u.wwn); 242601649561SJames Smart nfcp_info.port_name = wwn_to_u64(vport->fc_portname.u.wwn); 242701649561SJames Smart 24284d4c4a4aSJames Smart /* Limit to LPFC_MAX_NVME_SEG_CNT. 24294d4c4a4aSJames Smart * For now need + 1 to get around NVME transport logic. 24304d4c4a4aSJames Smart */ 24314d4c4a4aSJames Smart if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) { 24324d4c4a4aSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME | LOG_INIT, 24334d4c4a4aSJames Smart "6300 Reducing sg segment cnt to %d\n", 24344d4c4a4aSJames Smart LPFC_MAX_NVME_SEG_CNT); 24354d4c4a4aSJames Smart phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT; 24364d4c4a4aSJames Smart } else { 24374d4c4a4aSJames Smart phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt; 24384d4c4a4aSJames Smart } 24394d4c4a4aSJames Smart lpfc_nvme_template.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1; 244001649561SJames Smart lpfc_nvme_template.max_hw_queues = phba->cfg_nvme_io_channel; 244101649561SJames Smart 244266a210ffSJames Smart cstat = kmalloc((sizeof(struct lpfc_nvme_ctrl_stat) * 244366a210ffSJames Smart phba->cfg_nvme_io_channel), GFP_KERNEL); 244466a210ffSJames Smart if (!cstat) 244566a210ffSJames Smart return -ENOMEM; 244666a210ffSJames Smart 244701649561SJames Smart /* localport is allocated from the stack, but the registration 244801649561SJames Smart * call allocates heap memory as well as the private area. 244901649561SJames Smart */ 24507d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 245101649561SJames Smart ret = nvme_fc_register_localport(&nfcp_info, &lpfc_nvme_template, 245201649561SJames Smart &vport->phba->pcidev->dev, &localport); 2453166d7211SJames Smart #else 2454166d7211SJames Smart ret = -ENOMEM; 2455166d7211SJames Smart #endif 245601649561SJames Smart if (!ret) { 245701649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME | LOG_NVME_DISC, 245801649561SJames Smart "6005 Successfully registered local " 245901649561SJames Smart "NVME port num %d, localP %p, private %p, " 246001649561SJames Smart "sg_seg %d\n", 246101649561SJames Smart localport->port_num, localport, 246201649561SJames Smart localport->private, 246301649561SJames Smart lpfc_nvme_template.max_sgl_segments); 246401649561SJames Smart 246501649561SJames Smart /* Private is our lport size declared in the template. */ 246601649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 246701649561SJames Smart vport->localport = localport; 246801649561SJames Smart lport->vport = vport; 246966a210ffSJames Smart lport->cstat = cstat; 247001649561SJames Smart vport->nvmei_support = 1; 24716b486ce9SDick Kennedy 24724b056682SJames Smart atomic_set(&lport->xmt_fcp_noxri, 0); 24734b056682SJames Smart atomic_set(&lport->xmt_fcp_bad_ndlp, 0); 24744b056682SJames Smart atomic_set(&lport->xmt_fcp_qdepth, 0); 24754b056682SJames Smart atomic_set(&lport->xmt_fcp_wqerr, 0); 24764b056682SJames Smart atomic_set(&lport->xmt_fcp_abort, 0); 24774b056682SJames Smart atomic_set(&lport->xmt_ls_abort, 0); 24784b056682SJames Smart atomic_set(&lport->xmt_ls_err, 0); 24794b056682SJames Smart atomic_set(&lport->cmpl_fcp_xb, 0); 24804b056682SJames Smart atomic_set(&lport->cmpl_fcp_err, 0); 24814b056682SJames Smart atomic_set(&lport->cmpl_ls_xb, 0); 24824b056682SJames Smart atomic_set(&lport->cmpl_ls_err, 0); 248366a210ffSJames Smart atomic_set(&lport->fc4NvmeLsRequests, 0); 248466a210ffSJames Smart atomic_set(&lport->fc4NvmeLsCmpls, 0); 248566a210ffSJames Smart 248666a210ffSJames Smart for (i = 0; i < phba->cfg_nvme_io_channel; i++) { 248766a210ffSJames Smart cstat = &lport->cstat[i]; 248866a210ffSJames Smart atomic_set(&cstat->fc4NvmeInputRequests, 0); 248966a210ffSJames Smart atomic_set(&cstat->fc4NvmeOutputRequests, 0); 249066a210ffSJames Smart atomic_set(&cstat->fc4NvmeControlRequests, 0); 249166a210ffSJames Smart atomic_set(&cstat->fc4NvmeIoCmpls, 0); 249266a210ffSJames Smart } 24934b056682SJames Smart 24946b486ce9SDick Kennedy /* Don't post more new bufs if repost already recovered 24956b486ce9SDick Kennedy * the nvme sgls. 24966b486ce9SDick Kennedy */ 24976b486ce9SDick Kennedy if (phba->sli4_hba.nvme_xri_cnt == 0) { 24986b486ce9SDick Kennedy len = lpfc_new_nvme_buf(vport, 24996b486ce9SDick Kennedy phba->sli4_hba.nvme_xri_max); 250001649561SJames Smart vport->phba->total_nvme_bufs += len; 25013ebd9b47SJames Smart } 250266a210ffSJames Smart } else { 250366a210ffSJames Smart kfree(cstat); 25046b486ce9SDick Kennedy } 25053ebd9b47SJames Smart 250601649561SJames Smart return ret; 250701649561SJames Smart } 250801649561SJames Smart 2509add9d6beSJames Smart /* lpfc_nvme_lport_unreg_wait - Wait for the host to complete an lport unreg. 2510add9d6beSJames Smart * 2511add9d6beSJames Smart * The driver has to wait for the host nvme transport to callback 2512add9d6beSJames Smart * indicating the localport has successfully unregistered all 2513add9d6beSJames Smart * resources. Since this is an uninterruptible wait, loop every ten 2514add9d6beSJames Smart * seconds and print a message indicating no progress. 2515add9d6beSJames Smart * 2516add9d6beSJames Smart * An uninterruptible wait is used because of the risk of transport-to- 2517add9d6beSJames Smart * driver state mismatch. 2518add9d6beSJames Smart */ 2519add9d6beSJames Smart void 2520add9d6beSJames Smart lpfc_nvme_lport_unreg_wait(struct lpfc_vport *vport, 2521add9d6beSJames Smart struct lpfc_nvme_lport *lport) 2522add9d6beSJames Smart { 2523add9d6beSJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 2524add9d6beSJames Smart u32 wait_tmo; 2525add9d6beSJames Smart int ret; 2526add9d6beSJames Smart 2527add9d6beSJames Smart /* Host transport has to clean up and confirm requiring an indefinite 2528add9d6beSJames Smart * wait. Print a message if a 10 second wait expires and renew the 2529add9d6beSJames Smart * wait. This is unexpected. 2530add9d6beSJames Smart */ 2531add9d6beSJames Smart wait_tmo = msecs_to_jiffies(LPFC_NVME_WAIT_TMO * 1000); 2532add9d6beSJames Smart while (true) { 2533add9d6beSJames Smart ret = wait_for_completion_timeout(&lport->lport_unreg_done, 2534add9d6beSJames Smart wait_tmo); 2535add9d6beSJames Smart if (unlikely(!ret)) { 2536add9d6beSJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR, 2537add9d6beSJames Smart "6176 Lport %p Localport %p wait " 2538add9d6beSJames Smart "timed out. Renewing.\n", 2539add9d6beSJames Smart lport, vport->localport); 2540add9d6beSJames Smart continue; 2541add9d6beSJames Smart } 2542add9d6beSJames Smart break; 2543add9d6beSJames Smart } 2544add9d6beSJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, 2545add9d6beSJames Smart "6177 Lport %p Localport %p Complete Success\n", 2546add9d6beSJames Smart lport, vport->localport); 2547add9d6beSJames Smart #endif 2548add9d6beSJames Smart } 2549add9d6beSJames Smart 255001649561SJames Smart /** 255101649561SJames Smart * lpfc_nvme_destroy_localport - Destroy lpfc_nvme bound to nvme transport. 255201649561SJames Smart * @pnvme: pointer to lpfc nvme data structure. 255301649561SJames Smart * 255401649561SJames Smart * This routine is invoked to destroy all lports bound to the phba. 255501649561SJames Smart * The lport memory was allocated by the nvme fc transport and is 255601649561SJames Smart * released there. This routine ensures all rports bound to the 255701649561SJames Smart * lport have been disconnected. 255801649561SJames Smart * 255901649561SJames Smart **/ 256001649561SJames Smart void 256101649561SJames Smart lpfc_nvme_destroy_localport(struct lpfc_vport *vport) 256201649561SJames Smart { 25637d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 256401649561SJames Smart struct nvme_fc_local_port *localport; 256501649561SJames Smart struct lpfc_nvme_lport *lport; 256666a210ffSJames Smart struct lpfc_nvme_ctrl_stat *cstat; 256701649561SJames Smart int ret; 256801649561SJames Smart 256901649561SJames Smart if (vport->nvmei_support == 0) 257001649561SJames Smart return; 257101649561SJames Smart 257201649561SJames Smart localport = vport->localport; 257301649561SJames Smart vport->localport = NULL; 257401649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 257566a210ffSJames Smart cstat = lport->cstat; 257601649561SJames Smart 257701649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME, 257801649561SJames Smart "6011 Destroying NVME localport %p\n", 257901649561SJames Smart localport); 2580166d7211SJames Smart 258101649561SJames Smart /* lport's rport list is clear. Unregister 258201649561SJames Smart * lport and release resources. 258301649561SJames Smart */ 258401649561SJames Smart init_completion(&lport->lport_unreg_done); 258501649561SJames Smart ret = nvme_fc_unregister_localport(localport); 2586add9d6beSJames Smart 2587add9d6beSJames Smart /* Wait for completion. This either blocks 2588add9d6beSJames Smart * indefinitely or succeeds 2589add9d6beSJames Smart */ 2590add9d6beSJames Smart lpfc_nvme_lport_unreg_wait(vport, lport); 259166a210ffSJames Smart kfree(cstat); 259201649561SJames Smart 259301649561SJames Smart /* Regardless of the unregister upcall response, clear 259401649561SJames Smart * nvmei_support. All rports are unregistered and the 259501649561SJames Smart * driver will clean up. 259601649561SJames Smart */ 259701649561SJames Smart vport->nvmei_support = 0; 259801649561SJames Smart if (ret == 0) { 259901649561SJames Smart lpfc_printf_vlog(vport, 260001649561SJames Smart KERN_INFO, LOG_NVME_DISC, 260101649561SJames Smart "6009 Unregistered lport Success\n"); 260201649561SJames Smart } else { 260301649561SJames Smart lpfc_printf_vlog(vport, 260401649561SJames Smart KERN_INFO, LOG_NVME_DISC, 260501649561SJames Smart "6010 Unregistered lport " 260601649561SJames Smart "Failed, status x%x\n", 260701649561SJames Smart ret); 260801649561SJames Smart } 2609166d7211SJames Smart #endif 261001649561SJames Smart } 261101649561SJames Smart 261201649561SJames Smart void 261301649561SJames Smart lpfc_nvme_update_localport(struct lpfc_vport *vport) 261401649561SJames Smart { 26154410a67aSJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 261601649561SJames Smart struct nvme_fc_local_port *localport; 261701649561SJames Smart struct lpfc_nvme_lport *lport; 261801649561SJames Smart 261901649561SJames Smart localport = vport->localport; 26204410a67aSJames Smart if (!localport) { 26214410a67aSJames Smart lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME, 26224410a67aSJames Smart "6710 Update NVME fail. No localport\n"); 26234410a67aSJames Smart return; 26244410a67aSJames Smart } 262501649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 26264410a67aSJames Smart if (!lport) { 26274410a67aSJames Smart lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME, 26284410a67aSJames Smart "6171 Update NVME fail. localP %p, No lport\n", 26294410a67aSJames Smart localport); 26304410a67aSJames Smart return; 26314410a67aSJames Smart } 263201649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME, 263301649561SJames Smart "6012 Update NVME lport %p did x%x\n", 263401649561SJames Smart localport, vport->fc_myDID); 263501649561SJames Smart 263601649561SJames Smart localport->port_id = vport->fc_myDID; 263701649561SJames Smart if (localport->port_id == 0) 263801649561SJames Smart localport->port_role = FC_PORT_ROLE_NVME_DISCOVERY; 263901649561SJames Smart else 264001649561SJames Smart localport->port_role = FC_PORT_ROLE_NVME_INITIATOR; 264101649561SJames Smart 264201649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 264301649561SJames Smart "6030 bound lport %p to DID x%06x\n", 264401649561SJames Smart lport, localport->port_id); 26454410a67aSJames Smart #endif 264601649561SJames Smart } 264701649561SJames Smart 264801649561SJames Smart int 264901649561SJames Smart lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 265001649561SJames Smart { 26517d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 265201649561SJames Smart int ret = 0; 265301649561SJames Smart struct nvme_fc_local_port *localport; 265401649561SJames Smart struct lpfc_nvme_lport *lport; 265501649561SJames Smart struct lpfc_nvme_rport *rport; 265601466024SJames Smart struct lpfc_nvme_rport *oldrport; 265701649561SJames Smart struct nvme_fc_remote_port *remote_port; 265801649561SJames Smart struct nvme_fc_port_info rpinfo; 26592b75d0f9SDick Kennedy struct lpfc_nodelist *prev_ndlp; 266001649561SJames Smart 266101649561SJames Smart lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NVME_DISC, 266201649561SJames Smart "6006 Register NVME PORT. DID x%06x nlptype x%x\n", 266301649561SJames Smart ndlp->nlp_DID, ndlp->nlp_type); 266401649561SJames Smart 266501649561SJames Smart localport = vport->localport; 2666bb6a8a2cSDick Kennedy if (!localport) 2667bb6a8a2cSDick Kennedy return 0; 2668bb6a8a2cSDick Kennedy 266901649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 267001649561SJames Smart 26717a06dcd3SJames Smart /* NVME rports are not preserved across devloss. 26727a06dcd3SJames Smart * Just register this instance. Note, rpinfo->dev_loss_tmo 26737a06dcd3SJames Smart * is left 0 to indicate accept transport defaults. The 26747a06dcd3SJames Smart * driver communicates port role capabilities consistent 26757a06dcd3SJames Smart * with the PRLI response data. 267601649561SJames Smart */ 26777a06dcd3SJames Smart memset(&rpinfo, 0, sizeof(struct nvme_fc_port_info)); 26787a06dcd3SJames Smart rpinfo.port_id = ndlp->nlp_DID; 267901649561SJames Smart if (ndlp->nlp_type & NLP_NVME_TARGET) 26807a06dcd3SJames Smart rpinfo.port_role |= FC_PORT_ROLE_NVME_TARGET; 268101649561SJames Smart if (ndlp->nlp_type & NLP_NVME_INITIATOR) 26827a06dcd3SJames Smart rpinfo.port_role |= FC_PORT_ROLE_NVME_INITIATOR; 268301649561SJames Smart 26847a06dcd3SJames Smart if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 26857a06dcd3SJames Smart rpinfo.port_role |= FC_PORT_ROLE_NVME_DISCOVERY; 26867a06dcd3SJames Smart 26877a06dcd3SJames Smart rpinfo.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 26887a06dcd3SJames Smart rpinfo.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 268901466024SJames Smart 269001466024SJames Smart oldrport = lpfc_ndlp_get_nrport(ndlp); 269101466024SJames Smart if (!oldrport) 26923fd78355SJames Smart lpfc_nlp_get(ndlp); 26933fd78355SJames Smart 26947a06dcd3SJames Smart ret = nvme_fc_register_remoteport(localport, &rpinfo, &remote_port); 26957a06dcd3SJames Smart if (!ret) { 26967a06dcd3SJames Smart /* If the ndlp already has an nrport, this is just 26977a06dcd3SJames Smart * a resume of the existing rport. Else this is a 26987a06dcd3SJames Smart * new rport. 26997a06dcd3SJames Smart */ 2700*b15bd3e6SJames Smart /* Guard against an unregister/reregister 2701*b15bd3e6SJames Smart * race that leaves the WAIT flag set. 2702*b15bd3e6SJames Smart */ 2703*b15bd3e6SJames Smart spin_lock_irq(&vport->phba->hbalock); 2704*b15bd3e6SJames Smart ndlp->upcall_flags &= ~NLP_WAIT_FOR_UNREG; 2705*b15bd3e6SJames Smart spin_unlock_irq(&vport->phba->hbalock); 27067a06dcd3SJames Smart rport = remote_port->private; 270701466024SJames Smart if (oldrport) { 270801466024SJames Smart if (oldrport == remote_port->private) { 27093fd78355SJames Smart /* Same remoteport. Just reuse. */ 271001649561SJames Smart lpfc_printf_vlog(ndlp->vport, KERN_INFO, 271101649561SJames Smart LOG_NVME_DISC, 271201649561SJames Smart "6014 Rebinding lport to " 27133fd78355SJames Smart "remoteport %p wwpn 0x%llx, " 27143fd78355SJames Smart "Data: x%x x%x %p x%x x%06x\n", 27153fd78355SJames Smart remote_port, 271601649561SJames Smart remote_port->port_name, 271701649561SJames Smart remote_port->port_id, 271801649561SJames Smart remote_port->port_role, 27193fd78355SJames Smart ndlp, 272001649561SJames Smart ndlp->nlp_type, 272101649561SJames Smart ndlp->nlp_DID); 27223fd78355SJames Smart return 0; 27233fd78355SJames Smart } 27242b75d0f9SDick Kennedy prev_ndlp = rport->ndlp; 27252b75d0f9SDick Kennedy 27263fd78355SJames Smart /* Sever the ndlp<->rport association 27273fd78355SJames Smart * before dropping the ndlp ref from 27283fd78355SJames Smart * register. 27292b75d0f9SDick Kennedy */ 27303fd78355SJames Smart spin_lock_irq(&vport->phba->hbalock); 27312b75d0f9SDick Kennedy ndlp->nrport = NULL; 273201466024SJames Smart ndlp->upcall_flags &= ~NLP_WAIT_FOR_UNREG; 27333fd78355SJames Smart spin_unlock_irq(&vport->phba->hbalock); 27342b75d0f9SDick Kennedy rport->ndlp = NULL; 27353fd78355SJames Smart rport->remoteport = NULL; 2736b04744ceSJames Smart 2737b04744ceSJames Smart /* Reference only removed if previous NDLP is no longer 2738b04744ceSJames Smart * active. It might be just a swap and removing the 2739b04744ceSJames Smart * reference would cause a premature cleanup. 2740b04744ceSJames Smart */ 2741b04744ceSJames Smart if (prev_ndlp && prev_ndlp != ndlp) { 2742b04744ceSJames Smart if ((!NLP_CHK_NODE_ACT(prev_ndlp)) || 2743b04744ceSJames Smart (!prev_ndlp->nrport)) 2744b04744ceSJames Smart lpfc_nlp_put(prev_ndlp); 2745b04744ceSJames Smart } 27462b75d0f9SDick Kennedy } 27472b75d0f9SDick Kennedy 27482b75d0f9SDick Kennedy /* Clean bind the rport to the ndlp. */ 274901649561SJames Smart rport->remoteport = remote_port; 275001649561SJames Smart rport->lport = lport; 27513fd78355SJames Smart rport->ndlp = ndlp; 27523fd78355SJames Smart spin_lock_irq(&vport->phba->hbalock); 275301649561SJames Smart ndlp->nrport = rport; 27543fd78355SJames Smart spin_unlock_irq(&vport->phba->hbalock); 275501649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, 275601649561SJames Smart LOG_NVME_DISC | LOG_NODE, 27577a06dcd3SJames Smart "6022 Binding new rport to " 27583fd78355SJames Smart "lport %p Remoteport %p WWNN 0x%llx, " 27597a06dcd3SJames Smart "Rport WWPN 0x%llx DID " 27603fd78355SJames Smart "x%06x Role x%x, ndlp %p\n", 27613fd78355SJames Smart lport, remote_port, 276201649561SJames Smart rpinfo.node_name, rpinfo.port_name, 27633fd78355SJames Smart rpinfo.port_id, rpinfo.port_role, 27643fd78355SJames Smart ndlp); 276501649561SJames Smart } else { 276601649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, 276701649561SJames Smart LOG_NVME_DISC | LOG_NODE, 276801649561SJames Smart "6031 RemotePort Registration failed " 276901649561SJames Smart "err: %d, DID x%06x\n", 277001649561SJames Smart ret, ndlp->nlp_DID); 277101649561SJames Smart } 27727a06dcd3SJames Smart 277301649561SJames Smart return ret; 2774166d7211SJames Smart #else 2775166d7211SJames Smart return 0; 2776166d7211SJames Smart #endif 277701649561SJames Smart } 277801649561SJames Smart 277901649561SJames Smart /* lpfc_nvme_unregister_port - unbind the DID and port_role from this rport. 278001649561SJames Smart * 278101649561SJames Smart * There is no notion of Devloss or rport recovery from the current 278201649561SJames Smart * nvme_transport perspective. Loss of an rport just means IO cannot 278301649561SJames Smart * be sent and recovery is completely up to the initator. 278401649561SJames Smart * For now, the driver just unbinds the DID and port_role so that 278501649561SJames Smart * no further IO can be issued. Changes are planned for later. 278601649561SJames Smart * 278701649561SJames Smart * Notes - the ndlp reference count is not decremented here since 278801649561SJames Smart * since there is no nvme_transport api for devloss. Node ref count 278901649561SJames Smart * is only adjusted in driver unload. 279001649561SJames Smart */ 279101649561SJames Smart void 279201649561SJames Smart lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 279301649561SJames Smart { 27947d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_FC)) 279501649561SJames Smart int ret; 279601649561SJames Smart struct nvme_fc_local_port *localport; 279701649561SJames Smart struct lpfc_nvme_lport *lport; 279801649561SJames Smart struct lpfc_nvme_rport *rport; 279901649561SJames Smart struct nvme_fc_remote_port *remoteport; 280001649561SJames Smart 280101649561SJames Smart localport = vport->localport; 280201649561SJames Smart 280301649561SJames Smart /* This is fundamental error. The localport is always 280401649561SJames Smart * available until driver unload. Just exit. 280501649561SJames Smart */ 280601649561SJames Smart if (!localport) 280701649561SJames Smart return; 280801649561SJames Smart 280901649561SJames Smart lport = (struct lpfc_nvme_lport *)localport->private; 281001649561SJames Smart if (!lport) 281101649561SJames Smart goto input_err; 281201649561SJames Smart 281301466024SJames Smart rport = lpfc_ndlp_get_nrport(ndlp); 281401649561SJames Smart if (!rport) 281501649561SJames Smart goto input_err; 281601649561SJames Smart 281701649561SJames Smart remoteport = rport->remoteport; 281801649561SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 281901649561SJames Smart "6033 Unreg nvme remoteport %p, portname x%llx, " 282001649561SJames Smart "port_id x%06x, portstate x%x port type x%x\n", 282101649561SJames Smart remoteport, remoteport->port_name, 282201649561SJames Smart remoteport->port_id, remoteport->port_state, 282301649561SJames Smart ndlp->nlp_type); 282401649561SJames Smart 282501649561SJames Smart /* Sanity check ndlp type. Only call for NVME ports. Don't 282601649561SJames Smart * clear any rport state until the transport calls back. 282701649561SJames Smart */ 28283b5bde69SJames Smart 28293b5bde69SJames Smart if (ndlp->nlp_type & NLP_NVME_TARGET) { 28307a06dcd3SJames Smart /* No concern about the role change on the nvme remoteport. 28317a06dcd3SJames Smart * The transport will update it. 28327a06dcd3SJames Smart */ 2833add9d6beSJames Smart ndlp->upcall_flags |= NLP_WAIT_FOR_UNREG; 283401649561SJames Smart ret = nvme_fc_unregister_remoteport(remoteport); 28353fd78355SJames Smart if (ret != 0) { 28363fd78355SJames Smart lpfc_nlp_put(ndlp); 283701649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 283801649561SJames Smart "6167 NVME unregister failed %d " 283901649561SJames Smart "port_state x%x\n", 284001649561SJames Smart ret, remoteport->port_state); 28413fd78355SJames Smart } 284201649561SJames Smart } 284301649561SJames Smart return; 284401649561SJames Smart 284501649561SJames Smart input_err: 2846166d7211SJames Smart #endif 284701649561SJames Smart lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, 28482b7824d0SJames Smart "6168 State error: lport %p, rport%p FCID x%06x\n", 284901649561SJames Smart vport->localport, ndlp->rport, ndlp->nlp_DID); 285001649561SJames Smart } 2851318083adSJames Smart 2852318083adSJames Smart /** 2853318083adSJames Smart * lpfc_sli4_nvme_xri_aborted - Fast-path process of NVME xri abort 2854318083adSJames Smart * @phba: pointer to lpfc hba data structure. 2855318083adSJames Smart * @axri: pointer to the fcp xri abort wcqe structure. 2856318083adSJames Smart * 2857318083adSJames Smart * This routine is invoked by the worker thread to process a SLI4 fast-path 2858952c303bSDick Kennedy * NVME aborted xri. Aborted NVME IO commands are completed to the transport 2859952c303bSDick Kennedy * here. 2860318083adSJames Smart **/ 2861318083adSJames Smart void 2862318083adSJames Smart lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba, 2863318083adSJames Smart struct sli4_wcqe_xri_aborted *axri) 2864318083adSJames Smart { 2865318083adSJames Smart uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); 2866318083adSJames Smart struct lpfc_nvme_buf *lpfc_ncmd, *next_lpfc_ncmd; 2867952c303bSDick Kennedy struct nvmefc_fcp_req *nvme_cmd = NULL; 2868318083adSJames Smart struct lpfc_nodelist *ndlp; 2869318083adSJames Smart unsigned long iflag = 0; 2870318083adSJames Smart 2871318083adSJames Smart if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 2872318083adSJames Smart return; 2873318083adSJames Smart spin_lock_irqsave(&phba->hbalock, iflag); 2874318083adSJames Smart spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 2875318083adSJames Smart list_for_each_entry_safe(lpfc_ncmd, next_lpfc_ncmd, 2876318083adSJames Smart &phba->sli4_hba.lpfc_abts_nvme_buf_list, 2877318083adSJames Smart list) { 2878318083adSJames Smart if (lpfc_ncmd->cur_iocbq.sli4_xritag == xri) { 2879bbe3012bSJames Smart list_del_init(&lpfc_ncmd->list); 2880318083adSJames Smart lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; 2881318083adSJames Smart lpfc_ncmd->status = IOSTAT_SUCCESS; 2882318083adSJames Smart spin_unlock( 2883318083adSJames Smart &phba->sli4_hba.abts_nvme_buf_list_lock); 2884318083adSJames Smart 2885318083adSJames Smart spin_unlock_irqrestore(&phba->hbalock, iflag); 2886318083adSJames Smart ndlp = lpfc_ncmd->ndlp; 2887952c303bSDick Kennedy if (ndlp) 2888318083adSJames Smart lpfc_sli4_abts_err_handler(phba, ndlp, axri); 288986c67379SJames Smart 289086c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 2891952c303bSDick Kennedy "6311 nvme_cmd %p xri x%x tag x%x " 2892952c303bSDick Kennedy "abort complete and xri released\n", 2893952c303bSDick Kennedy lpfc_ncmd->nvmeCmd, xri, 2894952c303bSDick Kennedy lpfc_ncmd->cur_iocbq.iotag); 289586c67379SJames Smart 2896952c303bSDick Kennedy /* Aborted NVME commands are required to not complete 2897952c303bSDick Kennedy * before the abort exchange command fully completes. 2898952c303bSDick Kennedy * Once completed, it is available via the put list. 2899952c303bSDick Kennedy */ 29003fd78355SJames Smart if (lpfc_ncmd->nvmeCmd) { 2901952c303bSDick Kennedy nvme_cmd = lpfc_ncmd->nvmeCmd; 2902952c303bSDick Kennedy nvme_cmd->done(nvme_cmd); 29033fd78355SJames Smart lpfc_ncmd->nvmeCmd = NULL; 29043fd78355SJames Smart } 2905318083adSJames Smart lpfc_release_nvme_buf(phba, lpfc_ncmd); 2906318083adSJames Smart return; 2907318083adSJames Smart } 2908318083adSJames Smart } 2909318083adSJames Smart spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 2910318083adSJames Smart spin_unlock_irqrestore(&phba->hbalock, iflag); 291186c67379SJames Smart 291286c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 291386c67379SJames Smart "6312 XRI Aborted xri x%x not found\n", xri); 291486c67379SJames Smart 2915318083adSJames Smart } 2916c3725bdcSJames Smart 2917c3725bdcSJames Smart /** 2918c3725bdcSJames Smart * lpfc_nvme_wait_for_io_drain - Wait for all NVME wqes to complete 2919c3725bdcSJames Smart * @phba: Pointer to HBA context object. 2920c3725bdcSJames Smart * 2921c3725bdcSJames Smart * This function flushes all wqes in the nvme rings and frees all resources 2922c3725bdcSJames Smart * in the txcmplq. This function does not issue abort wqes for the IO 2923c3725bdcSJames Smart * commands in txcmplq, they will just be returned with 2924c3725bdcSJames Smart * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI 2925c3725bdcSJames Smart * slot has been permanently disabled. 2926c3725bdcSJames Smart **/ 2927c3725bdcSJames Smart void 2928c3725bdcSJames Smart lpfc_nvme_wait_for_io_drain(struct lpfc_hba *phba) 2929c3725bdcSJames Smart { 2930c3725bdcSJames Smart struct lpfc_sli_ring *pring; 2931c3725bdcSJames Smart u32 i, wait_cnt = 0; 2932c3725bdcSJames Smart 2933c3725bdcSJames Smart if (phba->sli_rev < LPFC_SLI_REV4) 2934c3725bdcSJames Smart return; 2935c3725bdcSJames Smart 2936c3725bdcSJames Smart /* Cycle through all NVME rings and make sure all outstanding 2937c3725bdcSJames Smart * WQEs have been removed from the txcmplqs. 2938c3725bdcSJames Smart */ 2939c3725bdcSJames Smart for (i = 0; i < phba->cfg_nvme_io_channel; i++) { 2940c3725bdcSJames Smart pring = phba->sli4_hba.nvme_wq[i]->pring; 2941c3725bdcSJames Smart 2942c3725bdcSJames Smart /* Retrieve everything on the txcmplq */ 2943c3725bdcSJames Smart while (!list_empty(&pring->txcmplq)) { 2944c3725bdcSJames Smart msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 2945c3725bdcSJames Smart wait_cnt++; 2946c3725bdcSJames Smart 2947c3725bdcSJames Smart /* The sleep is 10mS. Every ten seconds, 2948c3725bdcSJames Smart * dump a message. Something is wrong. 2949c3725bdcSJames Smart */ 2950c3725bdcSJames Smart if ((wait_cnt % 1000) == 0) { 2951c3725bdcSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 2952c3725bdcSJames Smart "6178 NVME IO not empty, " 2953c3725bdcSJames Smart "cnt %d\n", wait_cnt); 2954c3725bdcSJames Smart } 2955c3725bdcSJames Smart } 2956c3725bdcSJames Smart } 2957c3725bdcSJames Smart } 2958