17b36b6e0Skxie@chelsio.com /* 27b36b6e0Skxie@chelsio.com * cxgb4i.c: Chelsio T4 iSCSI driver. 37b36b6e0Skxie@chelsio.com * 47b36b6e0Skxie@chelsio.com * Copyright (c) 2010 Chelsio Communications, Inc. 57b36b6e0Skxie@chelsio.com * 67b36b6e0Skxie@chelsio.com * This program is free software; you can redistribute it and/or modify 77b36b6e0Skxie@chelsio.com * it under the terms of the GNU General Public License as published by 87b36b6e0Skxie@chelsio.com * the Free Software Foundation. 97b36b6e0Skxie@chelsio.com * 107b36b6e0Skxie@chelsio.com * Written by: Karen Xie (kxie@chelsio.com) 117b36b6e0Skxie@chelsio.com * Rakesh Ranjan (rranjan@chelsio.com) 127b36b6e0Skxie@chelsio.com */ 137b36b6e0Skxie@chelsio.com 147b36b6e0Skxie@chelsio.com #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__ 157b36b6e0Skxie@chelsio.com 167b36b6e0Skxie@chelsio.com #include <linux/module.h> 177b36b6e0Skxie@chelsio.com #include <linux/moduleparam.h> 187b36b6e0Skxie@chelsio.com #include <scsi/scsi_host.h> 197b36b6e0Skxie@chelsio.com #include <net/tcp.h> 207b36b6e0Skxie@chelsio.com #include <net/dst.h> 217b36b6e0Skxie@chelsio.com #include <linux/netdevice.h> 22759a0cc5SAnish Bhatt #include <net/addrconf.h> 237b36b6e0Skxie@chelsio.com 243bd3e8bfSKaren Xie #include "t4_regs.h" 257b36b6e0Skxie@chelsio.com #include "t4_msg.h" 267b36b6e0Skxie@chelsio.com #include "cxgb4.h" 277b36b6e0Skxie@chelsio.com #include "cxgb4_uld.h" 287b36b6e0Skxie@chelsio.com #include "t4fw_api.h" 297b36b6e0Skxie@chelsio.com #include "l2t.h" 307b36b6e0Skxie@chelsio.com #include "cxgb4i.h" 317b36b6e0Skxie@chelsio.com 327b36b6e0Skxie@chelsio.com static unsigned int dbg_level; 337b36b6e0Skxie@chelsio.com 347b36b6e0Skxie@chelsio.com #include "../libcxgbi.h" 357b36b6e0Skxie@chelsio.com 367b36b6e0Skxie@chelsio.com #define DRV_MODULE_NAME "cxgb4i" 373bd3e8bfSKaren Xie #define DRV_MODULE_DESC "Chelsio T4/T5 iSCSI Driver" 383bd3e8bfSKaren Xie #define DRV_MODULE_VERSION "0.9.4" 397b36b6e0Skxie@chelsio.com 407b36b6e0Skxie@chelsio.com static char version[] = 417b36b6e0Skxie@chelsio.com DRV_MODULE_DESC " " DRV_MODULE_NAME 423bd3e8bfSKaren Xie " v" DRV_MODULE_VERSION "\n"; 437b36b6e0Skxie@chelsio.com 447b36b6e0Skxie@chelsio.com MODULE_AUTHOR("Chelsio Communications, Inc."); 457b36b6e0Skxie@chelsio.com MODULE_DESCRIPTION(DRV_MODULE_DESC); 467b36b6e0Skxie@chelsio.com MODULE_VERSION(DRV_MODULE_VERSION); 477b36b6e0Skxie@chelsio.com MODULE_LICENSE("GPL"); 487b36b6e0Skxie@chelsio.com 497b36b6e0Skxie@chelsio.com module_param(dbg_level, uint, 0644); 507b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(dbg_level, "Debug flag (default=0)"); 517b36b6e0Skxie@chelsio.com 527b36b6e0Skxie@chelsio.com static int cxgb4i_rcv_win = 256 * 1024; 537b36b6e0Skxie@chelsio.com module_param(cxgb4i_rcv_win, int, 0644); 547b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_rcv_win, "TCP reveive window in bytes"); 557b36b6e0Skxie@chelsio.com 567b36b6e0Skxie@chelsio.com static int cxgb4i_snd_win = 128 * 1024; 577b36b6e0Skxie@chelsio.com module_param(cxgb4i_snd_win, int, 0644); 587b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_snd_win, "TCP send window in bytes"); 597b36b6e0Skxie@chelsio.com 607b36b6e0Skxie@chelsio.com static int cxgb4i_rx_credit_thres = 10 * 1024; 617b36b6e0Skxie@chelsio.com module_param(cxgb4i_rx_credit_thres, int, 0644); 627b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_rx_credit_thres, 637b36b6e0Skxie@chelsio.com "RX credits return threshold in bytes (default=10KB)"); 647b36b6e0Skxie@chelsio.com 657b36b6e0Skxie@chelsio.com static unsigned int cxgb4i_max_connect = (8 * 1024); 667b36b6e0Skxie@chelsio.com module_param(cxgb4i_max_connect, uint, 0644); 677b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_max_connect, "Maximum number of connections"); 687b36b6e0Skxie@chelsio.com 697b36b6e0Skxie@chelsio.com static unsigned short cxgb4i_sport_base = 20000; 707b36b6e0Skxie@chelsio.com module_param(cxgb4i_sport_base, ushort, 0644); 717b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_sport_base, "Starting port number (default 20000)"); 727b36b6e0Skxie@chelsio.com 737b36b6e0Skxie@chelsio.com typedef void (*cxgb4i_cplhandler_func)(struct cxgbi_device *, struct sk_buff *); 747b36b6e0Skxie@chelsio.com 757b36b6e0Skxie@chelsio.com static void *t4_uld_add(const struct cxgb4_lld_info *); 767b36b6e0Skxie@chelsio.com static int t4_uld_rx_handler(void *, const __be64 *, const struct pkt_gl *); 777b36b6e0Skxie@chelsio.com static int t4_uld_state_change(void *, enum cxgb4_state state); 7864bfead8SKaren Xie static inline int send_tx_flowc_wr(struct cxgbi_sock *); 797b36b6e0Skxie@chelsio.com 807b36b6e0Skxie@chelsio.com static const struct cxgb4_uld_info cxgb4i_uld_info = { 817b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 827b36b6e0Skxie@chelsio.com .add = t4_uld_add, 837b36b6e0Skxie@chelsio.com .rx_handler = t4_uld_rx_handler, 847b36b6e0Skxie@chelsio.com .state_change = t4_uld_state_change, 857b36b6e0Skxie@chelsio.com }; 867b36b6e0Skxie@chelsio.com 877b36b6e0Skxie@chelsio.com static struct scsi_host_template cxgb4i_host_template = { 887b36b6e0Skxie@chelsio.com .module = THIS_MODULE, 897b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 907b36b6e0Skxie@chelsio.com .proc_name = DRV_MODULE_NAME, 917b36b6e0Skxie@chelsio.com .can_queue = CXGB4I_SCSI_HOST_QDEPTH, 927b36b6e0Skxie@chelsio.com .queuecommand = iscsi_queuecommand, 93db5ed4dfSChristoph Hellwig .change_queue_depth = scsi_change_queue_depth, 947b36b6e0Skxie@chelsio.com .sg_tablesize = SG_ALL, 957b36b6e0Skxie@chelsio.com .max_sectors = 0xFFFF, 967b36b6e0Skxie@chelsio.com .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, 977b36b6e0Skxie@chelsio.com .eh_abort_handler = iscsi_eh_abort, 987b36b6e0Skxie@chelsio.com .eh_device_reset_handler = iscsi_eh_device_reset, 997b36b6e0Skxie@chelsio.com .eh_target_reset_handler = iscsi_eh_recover_target, 1007b36b6e0Skxie@chelsio.com .target_alloc = iscsi_target_alloc, 1017b36b6e0Skxie@chelsio.com .use_clustering = DISABLE_CLUSTERING, 1027b36b6e0Skxie@chelsio.com .this_id = -1, 103c40ecc12SChristoph Hellwig .track_queue_depth = 1, 1047b36b6e0Skxie@chelsio.com }; 1057b36b6e0Skxie@chelsio.com 1067b36b6e0Skxie@chelsio.com static struct iscsi_transport cxgb4i_iscsi_transport = { 1077b36b6e0Skxie@chelsio.com .owner = THIS_MODULE, 1087b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 1097b36b6e0Skxie@chelsio.com .caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST | 1107b36b6e0Skxie@chelsio.com CAP_DATADGST | CAP_DIGEST_OFFLOAD | 111fdafd4dfSMike Christie CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO, 1123128c6c7SMike Christie .attr_is_visible = cxgbi_attr_is_visible, 1137b36b6e0Skxie@chelsio.com .get_host_param = cxgbi_get_host_param, 1147b36b6e0Skxie@chelsio.com .set_host_param = cxgbi_set_host_param, 1157b36b6e0Skxie@chelsio.com /* session management */ 1167b36b6e0Skxie@chelsio.com .create_session = cxgbi_create_session, 1177b36b6e0Skxie@chelsio.com .destroy_session = cxgbi_destroy_session, 1187b36b6e0Skxie@chelsio.com .get_session_param = iscsi_session_get_param, 1197b36b6e0Skxie@chelsio.com /* connection management */ 1207b36b6e0Skxie@chelsio.com .create_conn = cxgbi_create_conn, 1217b36b6e0Skxie@chelsio.com .bind_conn = cxgbi_bind_conn, 1227b36b6e0Skxie@chelsio.com .destroy_conn = iscsi_tcp_conn_teardown, 1237b36b6e0Skxie@chelsio.com .start_conn = iscsi_conn_start, 1247b36b6e0Skxie@chelsio.com .stop_conn = iscsi_conn_stop, 125c71b9b66SMike Christie .get_conn_param = iscsi_conn_get_param, 1267b36b6e0Skxie@chelsio.com .set_param = cxgbi_set_conn_param, 1277b36b6e0Skxie@chelsio.com .get_stats = cxgbi_get_conn_stats, 1287b36b6e0Skxie@chelsio.com /* pdu xmit req from user space */ 1297b36b6e0Skxie@chelsio.com .send_pdu = iscsi_conn_send_pdu, 1307b36b6e0Skxie@chelsio.com /* task */ 1317b36b6e0Skxie@chelsio.com .init_task = iscsi_tcp_task_init, 1327b36b6e0Skxie@chelsio.com .xmit_task = iscsi_tcp_task_xmit, 1337b36b6e0Skxie@chelsio.com .cleanup_task = cxgbi_cleanup_task, 1347b36b6e0Skxie@chelsio.com /* pdu */ 1357b36b6e0Skxie@chelsio.com .alloc_pdu = cxgbi_conn_alloc_pdu, 1367b36b6e0Skxie@chelsio.com .init_pdu = cxgbi_conn_init_pdu, 1377b36b6e0Skxie@chelsio.com .xmit_pdu = cxgbi_conn_xmit_pdu, 1387b36b6e0Skxie@chelsio.com .parse_pdu_itt = cxgbi_parse_pdu_itt, 1397b36b6e0Skxie@chelsio.com /* TCP connect/disconnect */ 140c71b9b66SMike Christie .get_ep_param = cxgbi_get_ep_param, 1417b36b6e0Skxie@chelsio.com .ep_connect = cxgbi_ep_connect, 1427b36b6e0Skxie@chelsio.com .ep_poll = cxgbi_ep_poll, 1437b36b6e0Skxie@chelsio.com .ep_disconnect = cxgbi_ep_disconnect, 1447b36b6e0Skxie@chelsio.com /* Error recovery timeout call */ 1457b36b6e0Skxie@chelsio.com .session_recovery_timedout = iscsi_session_recovery_timedout, 1467b36b6e0Skxie@chelsio.com }; 1477b36b6e0Skxie@chelsio.com 1487b36b6e0Skxie@chelsio.com static struct scsi_transport_template *cxgb4i_stt; 1497b36b6e0Skxie@chelsio.com 1507b36b6e0Skxie@chelsio.com /* 1517b36b6e0Skxie@chelsio.com * CPL (Chelsio Protocol Language) defines a message passing interface between 1527b36b6e0Skxie@chelsio.com * the host driver and Chelsio asic. 1537b36b6e0Skxie@chelsio.com * The section below implments CPLs that related to iscsi tcp connection 1547b36b6e0Skxie@chelsio.com * open/close/abort and data send/receive. 1557b36b6e0Skxie@chelsio.com */ 156759a0cc5SAnish Bhatt 1577b36b6e0Skxie@chelsio.com #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) 1587b36b6e0Skxie@chelsio.com #define RCV_BUFSIZ_MASK 0x3FFU 1597b36b6e0Skxie@chelsio.com #define MAX_IMM_TX_PKT_LEN 128 1607b36b6e0Skxie@chelsio.com 1617b36b6e0Skxie@chelsio.com static int push_tx_frames(struct cxgbi_sock *, int); 1627b36b6e0Skxie@chelsio.com 1637b36b6e0Skxie@chelsio.com /* 1647b36b6e0Skxie@chelsio.com * is_ofld_imm - check whether a packet can be sent as immediate data 1657b36b6e0Skxie@chelsio.com * @skb: the packet 1667b36b6e0Skxie@chelsio.com * 1677b36b6e0Skxie@chelsio.com * Returns true if a packet can be sent as an offload WR with immediate 1687b36b6e0Skxie@chelsio.com * data. We currently use the same limit as for Ethernet packets. 1697b36b6e0Skxie@chelsio.com */ 17084944d8cSKaren Xie static inline bool is_ofld_imm(const struct sk_buff *skb) 1717b36b6e0Skxie@chelsio.com { 17284944d8cSKaren Xie int len = skb->len; 17384944d8cSKaren Xie 17484944d8cSKaren Xie if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) 17584944d8cSKaren Xie len += sizeof(struct fw_ofld_tx_data_wr); 17684944d8cSKaren Xie 17784944d8cSKaren Xie return len <= MAX_IMM_TX_PKT_LEN; 1787b36b6e0Skxie@chelsio.com } 1797b36b6e0Skxie@chelsio.com 1807b36b6e0Skxie@chelsio.com static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb, 1817b36b6e0Skxie@chelsio.com struct l2t_entry *e) 1827b36b6e0Skxie@chelsio.com { 1833bd3e8bfSKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 184759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 1857b36b6e0Skxie@chelsio.com int wscale = cxgbi_sock_compute_wscale(csk->mss_idx); 1867b36b6e0Skxie@chelsio.com unsigned long long opt0; 1877b36b6e0Skxie@chelsio.com unsigned int opt2; 1887b36b6e0Skxie@chelsio.com unsigned int qid_atid = ((unsigned int)csk->atid) | 1897b36b6e0Skxie@chelsio.com (((unsigned int)csk->rss_qid) << 14); 1907b36b6e0Skxie@chelsio.com 191d7990b0cSAnish Bhatt opt0 = KEEP_ALIVE_F | 192d7990b0cSAnish Bhatt WND_SCALE_V(wscale) | 193d7990b0cSAnish Bhatt MSS_IDX_V(csk->mss_idx) | 194d7990b0cSAnish Bhatt L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) | 195d7990b0cSAnish Bhatt TX_CHAN_V(csk->tx_chan) | 196d7990b0cSAnish Bhatt SMAC_SEL_V(csk->smac_idx) | 197d7990b0cSAnish Bhatt ULP_MODE_V(ULP_MODE_ISCSI) | 198d7990b0cSAnish Bhatt RCV_BUFSIZ_V(cxgb4i_rcv_win >> 10); 199d7990b0cSAnish Bhatt opt2 = RX_CHANNEL_V(0) | 200d7990b0cSAnish Bhatt RSS_QUEUE_VALID_F | 201d7990b0cSAnish Bhatt (RX_FC_DISABLE_F) | 202d7990b0cSAnish Bhatt RSS_QUEUE_V(csk->rss_qid); 2037b36b6e0Skxie@chelsio.com 2043bd3e8bfSKaren Xie if (is_t4(lldi->adapter_type)) { 2053bd3e8bfSKaren Xie struct cpl_act_open_req *req = 2063bd3e8bfSKaren Xie (struct cpl_act_open_req *)skb->head; 2073bd3e8bfSKaren Xie 2087b36b6e0Skxie@chelsio.com INIT_TP_WR(req, 0); 2097b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, 2107b36b6e0Skxie@chelsio.com qid_atid)); 2117b36b6e0Skxie@chelsio.com req->local_port = csk->saddr.sin_port; 2127b36b6e0Skxie@chelsio.com req->peer_port = csk->daddr.sin_port; 2137b36b6e0Skxie@chelsio.com req->local_ip = csk->saddr.sin_addr.s_addr; 2147b36b6e0Skxie@chelsio.com req->peer_ip = csk->daddr.sin_addr.s_addr; 2157b36b6e0Skxie@chelsio.com req->opt0 = cpu_to_be64(opt0); 216ac0245ffSKaren Xie req->params = cpu_to_be32(cxgb4_select_ntuple( 217ac0245ffSKaren Xie csk->cdev->ports[csk->port_id], 218ac0245ffSKaren Xie csk->l2t)); 219d7990b0cSAnish Bhatt opt2 |= RX_FC_VALID_F; 2207b36b6e0Skxie@chelsio.com req->opt2 = cpu_to_be32(opt2); 2217b36b6e0Skxie@chelsio.com 2227b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 2233bd3e8bfSKaren Xie "csk t4 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n", 2247b36b6e0Skxie@chelsio.com csk, &req->local_ip, ntohs(req->local_port), 2257b36b6e0Skxie@chelsio.com &req->peer_ip, ntohs(req->peer_port), 2267b36b6e0Skxie@chelsio.com csk->atid, csk->rss_qid); 2273bd3e8bfSKaren Xie } else { 2283bd3e8bfSKaren Xie struct cpl_t5_act_open_req *req = 2293bd3e8bfSKaren Xie (struct cpl_t5_act_open_req *)skb->head; 2307b36b6e0Skxie@chelsio.com 2313bd3e8bfSKaren Xie INIT_TP_WR(req, 0); 2323bd3e8bfSKaren Xie OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, 2333bd3e8bfSKaren Xie qid_atid)); 2343bd3e8bfSKaren Xie req->local_port = csk->saddr.sin_port; 2353bd3e8bfSKaren Xie req->peer_port = csk->daddr.sin_port; 2363bd3e8bfSKaren Xie req->local_ip = csk->saddr.sin_addr.s_addr; 2373bd3e8bfSKaren Xie req->peer_ip = csk->daddr.sin_addr.s_addr; 2383bd3e8bfSKaren Xie req->opt0 = cpu_to_be64(opt0); 239d7990b0cSAnish Bhatt req->params = cpu_to_be64(FILTER_TUPLE_V( 240ac0245ffSKaren Xie cxgb4_select_ntuple( 241ac0245ffSKaren Xie csk->cdev->ports[csk->port_id], 242ac0245ffSKaren Xie csk->l2t))); 2433bd3e8bfSKaren Xie opt2 |= 1 << 31; 2443bd3e8bfSKaren Xie req->opt2 = cpu_to_be32(opt2); 2453bd3e8bfSKaren Xie 2463bd3e8bfSKaren Xie log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 2473bd3e8bfSKaren Xie "csk t5 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n", 2483bd3e8bfSKaren Xie csk, &req->local_ip, ntohs(req->local_port), 2493bd3e8bfSKaren Xie &req->peer_ip, ntohs(req->peer_port), 2503bd3e8bfSKaren Xie csk->atid, csk->rss_qid); 2513bd3e8bfSKaren Xie } 2523bd3e8bfSKaren Xie 2533bd3e8bfSKaren Xie set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); 254759a0cc5SAnish Bhatt 255759a0cc5SAnish Bhatt pr_info_ipaddr("t%d csk 0x%p,%u,0x%lx,%u, rss_qid %u.\n", 256759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), t4 ? 4 : 5, csk, 257759a0cc5SAnish Bhatt csk->state, csk->flags, csk->atid, csk->rss_qid); 258759a0cc5SAnish Bhatt 259759a0cc5SAnish Bhatt cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 260759a0cc5SAnish Bhatt } 261759a0cc5SAnish Bhatt 262f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 263759a0cc5SAnish Bhatt static void send_act_open_req6(struct cxgbi_sock *csk, struct sk_buff *skb, 264759a0cc5SAnish Bhatt struct l2t_entry *e) 265759a0cc5SAnish Bhatt { 266759a0cc5SAnish Bhatt struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 267759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 268759a0cc5SAnish Bhatt int wscale = cxgbi_sock_compute_wscale(csk->mss_idx); 269759a0cc5SAnish Bhatt unsigned long long opt0; 270759a0cc5SAnish Bhatt unsigned int opt2; 271759a0cc5SAnish Bhatt unsigned int qid_atid = ((unsigned int)csk->atid) | 272759a0cc5SAnish Bhatt (((unsigned int)csk->rss_qid) << 14); 273759a0cc5SAnish Bhatt 274d7990b0cSAnish Bhatt opt0 = KEEP_ALIVE_F | 275d7990b0cSAnish Bhatt WND_SCALE_V(wscale) | 276d7990b0cSAnish Bhatt MSS_IDX_V(csk->mss_idx) | 277d7990b0cSAnish Bhatt L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) | 278d7990b0cSAnish Bhatt TX_CHAN_V(csk->tx_chan) | 279d7990b0cSAnish Bhatt SMAC_SEL_V(csk->smac_idx) | 280d7990b0cSAnish Bhatt ULP_MODE_V(ULP_MODE_ISCSI) | 281d7990b0cSAnish Bhatt RCV_BUFSIZ_V(cxgb4i_rcv_win >> 10); 282759a0cc5SAnish Bhatt 283d7990b0cSAnish Bhatt opt2 = RX_CHANNEL_V(0) | 284d7990b0cSAnish Bhatt RSS_QUEUE_VALID_F | 285d7990b0cSAnish Bhatt RX_FC_DISABLE_F | 286d7990b0cSAnish Bhatt RSS_QUEUE_V(csk->rss_qid); 287759a0cc5SAnish Bhatt 288759a0cc5SAnish Bhatt if (t4) { 289759a0cc5SAnish Bhatt struct cpl_act_open_req6 *req = 290759a0cc5SAnish Bhatt (struct cpl_act_open_req6 *)skb->head; 291759a0cc5SAnish Bhatt 292759a0cc5SAnish Bhatt INIT_TP_WR(req, 0); 293759a0cc5SAnish Bhatt OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6, 294759a0cc5SAnish Bhatt qid_atid)); 295759a0cc5SAnish Bhatt req->local_port = csk->saddr6.sin6_port; 296759a0cc5SAnish Bhatt req->peer_port = csk->daddr6.sin6_port; 297759a0cc5SAnish Bhatt 298759a0cc5SAnish Bhatt req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr); 299759a0cc5SAnish Bhatt req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr + 300759a0cc5SAnish Bhatt 8); 301759a0cc5SAnish Bhatt req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr); 302759a0cc5SAnish Bhatt req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr + 303759a0cc5SAnish Bhatt 8); 304759a0cc5SAnish Bhatt 305759a0cc5SAnish Bhatt req->opt0 = cpu_to_be64(opt0); 306759a0cc5SAnish Bhatt 307d7990b0cSAnish Bhatt opt2 |= RX_FC_VALID_F; 308759a0cc5SAnish Bhatt req->opt2 = cpu_to_be32(opt2); 309759a0cc5SAnish Bhatt 310759a0cc5SAnish Bhatt req->params = cpu_to_be32(cxgb4_select_ntuple( 311759a0cc5SAnish Bhatt csk->cdev->ports[csk->port_id], 312759a0cc5SAnish Bhatt csk->l2t)); 313759a0cc5SAnish Bhatt } else { 314759a0cc5SAnish Bhatt struct cpl_t5_act_open_req6 *req = 315759a0cc5SAnish Bhatt (struct cpl_t5_act_open_req6 *)skb->head; 316759a0cc5SAnish Bhatt 317759a0cc5SAnish Bhatt INIT_TP_WR(req, 0); 318759a0cc5SAnish Bhatt OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6, 319759a0cc5SAnish Bhatt qid_atid)); 320759a0cc5SAnish Bhatt req->local_port = csk->saddr6.sin6_port; 321759a0cc5SAnish Bhatt req->peer_port = csk->daddr6.sin6_port; 322759a0cc5SAnish Bhatt req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr); 323759a0cc5SAnish Bhatt req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr + 324759a0cc5SAnish Bhatt 8); 325759a0cc5SAnish Bhatt req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr); 326759a0cc5SAnish Bhatt req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr + 327759a0cc5SAnish Bhatt 8); 328759a0cc5SAnish Bhatt req->opt0 = cpu_to_be64(opt0); 329759a0cc5SAnish Bhatt 330d7990b0cSAnish Bhatt opt2 |= T5_OPT_2_VALID_F; 331759a0cc5SAnish Bhatt req->opt2 = cpu_to_be32(opt2); 332759a0cc5SAnish Bhatt 333d7990b0cSAnish Bhatt req->params = cpu_to_be64(FILTER_TUPLE_V(cxgb4_select_ntuple( 334759a0cc5SAnish Bhatt csk->cdev->ports[csk->port_id], 335759a0cc5SAnish Bhatt csk->l2t))); 336759a0cc5SAnish Bhatt } 337759a0cc5SAnish Bhatt 338759a0cc5SAnish Bhatt set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); 339759a0cc5SAnish Bhatt 340759a0cc5SAnish Bhatt pr_info("t%d csk 0x%p,%u,0x%lx,%u, [%pI6]:%u-[%pI6]:%u, rss_qid %u.\n", 341759a0cc5SAnish Bhatt t4 ? 4 : 5, csk, csk->state, csk->flags, csk->atid, 342759a0cc5SAnish Bhatt &csk->saddr6.sin6_addr, ntohs(csk->saddr.sin_port), 343759a0cc5SAnish Bhatt &csk->daddr6.sin6_addr, ntohs(csk->daddr.sin_port), 344759a0cc5SAnish Bhatt csk->rss_qid); 345759a0cc5SAnish Bhatt 3467b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 3477b36b6e0Skxie@chelsio.com } 348f42bb57cSAnish Bhatt #endif 3497b36b6e0Skxie@chelsio.com 3507b36b6e0Skxie@chelsio.com static void send_close_req(struct cxgbi_sock *csk) 3517b36b6e0Skxie@chelsio.com { 3527b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_close; 3537b36b6e0Skxie@chelsio.com struct cpl_close_con_req *req = (struct cpl_close_con_req *)skb->head; 3547b36b6e0Skxie@chelsio.com unsigned int tid = csk->tid; 3557b36b6e0Skxie@chelsio.com 3567b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 3577b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u.\n", 3587b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 3597b36b6e0Skxie@chelsio.com csk->cpl_close = NULL; 3607b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 3617b36b6e0Skxie@chelsio.com INIT_TP_WR(req, tid); 3627b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_CLOSE_CON_REQ, tid)); 3637b36b6e0Skxie@chelsio.com req->rsvd = 0; 3647b36b6e0Skxie@chelsio.com 3657b36b6e0Skxie@chelsio.com cxgbi_sock_skb_entail(csk, skb); 3667b36b6e0Skxie@chelsio.com if (csk->state >= CTP_ESTABLISHED) 3677b36b6e0Skxie@chelsio.com push_tx_frames(csk, 1); 3687b36b6e0Skxie@chelsio.com } 3697b36b6e0Skxie@chelsio.com 3707b36b6e0Skxie@chelsio.com static void abort_arp_failure(void *handle, struct sk_buff *skb) 3717b36b6e0Skxie@chelsio.com { 3727b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk = (struct cxgbi_sock *)handle; 3737b36b6e0Skxie@chelsio.com struct cpl_abort_req *req; 3747b36b6e0Skxie@chelsio.com 3757b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 3767b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, abort.\n", 3777b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 3787b36b6e0Skxie@chelsio.com req = (struct cpl_abort_req *)skb->data; 3797b36b6e0Skxie@chelsio.com req->cmd = CPL_ABORT_NO_RST; 3807b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 3817b36b6e0Skxie@chelsio.com } 3827b36b6e0Skxie@chelsio.com 3837b36b6e0Skxie@chelsio.com static void send_abort_req(struct cxgbi_sock *csk) 3847b36b6e0Skxie@chelsio.com { 3857b36b6e0Skxie@chelsio.com struct cpl_abort_req *req; 3867b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_abort_req; 3877b36b6e0Skxie@chelsio.com 3887b36b6e0Skxie@chelsio.com if (unlikely(csk->state == CTP_ABORTING) || !skb || !csk->cdev) 3897b36b6e0Skxie@chelsio.com return; 39064bfead8SKaren Xie 39164bfead8SKaren Xie if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) { 39264bfead8SKaren Xie send_tx_flowc_wr(csk); 39364bfead8SKaren Xie cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 39464bfead8SKaren Xie } 39564bfead8SKaren Xie 3967b36b6e0Skxie@chelsio.com cxgbi_sock_set_state(csk, CTP_ABORTING); 3977b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_ABORT_RPL_PENDING); 3987b36b6e0Skxie@chelsio.com cxgbi_sock_purge_write_queue(csk); 3997b36b6e0Skxie@chelsio.com 4007b36b6e0Skxie@chelsio.com csk->cpl_abort_req = NULL; 4017b36b6e0Skxie@chelsio.com req = (struct cpl_abort_req *)skb->head; 4022126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 4037b36b6e0Skxie@chelsio.com req->cmd = CPL_ABORT_SEND_RST; 4047b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, abort_arp_failure); 4057b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 4067b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, csk->tid)); 4077b36b6e0Skxie@chelsio.com req->rsvd0 = htonl(csk->snd_nxt); 4087b36b6e0Skxie@chelsio.com req->rsvd1 = !cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT); 4097b36b6e0Skxie@chelsio.com 4107b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 4117b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, snd_nxt %u, 0x%x.\n", 4127b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, csk->snd_nxt, 4137b36b6e0Skxie@chelsio.com req->rsvd1); 4147b36b6e0Skxie@chelsio.com 4157b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 4167b36b6e0Skxie@chelsio.com } 4177b36b6e0Skxie@chelsio.com 4187b36b6e0Skxie@chelsio.com static void send_abort_rpl(struct cxgbi_sock *csk, int rst_status) 4197b36b6e0Skxie@chelsio.com { 4207b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_abort_rpl; 4217b36b6e0Skxie@chelsio.com struct cpl_abort_rpl *rpl = (struct cpl_abort_rpl *)skb->head; 4227b36b6e0Skxie@chelsio.com 4237b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 4247b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, status %d.\n", 4257b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, rst_status); 4267b36b6e0Skxie@chelsio.com 4277b36b6e0Skxie@chelsio.com csk->cpl_abort_rpl = NULL; 4282126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 4297b36b6e0Skxie@chelsio.com INIT_TP_WR(rpl, csk->tid); 4307b36b6e0Skxie@chelsio.com OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_RPL, csk->tid)); 4317b36b6e0Skxie@chelsio.com rpl->cmd = rst_status; 4327b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 4337b36b6e0Skxie@chelsio.com } 4347b36b6e0Skxie@chelsio.com 4357b36b6e0Skxie@chelsio.com /* 4367b36b6e0Skxie@chelsio.com * CPL connection rx data ack: host -> 4377b36b6e0Skxie@chelsio.com * Send RX credits through an RX_DATA_ACK CPL message. Returns the number of 4387b36b6e0Skxie@chelsio.com * credits sent. 4397b36b6e0Skxie@chelsio.com */ 4407b36b6e0Skxie@chelsio.com static u32 send_rx_credits(struct cxgbi_sock *csk, u32 credits) 4417b36b6e0Skxie@chelsio.com { 4427b36b6e0Skxie@chelsio.com struct sk_buff *skb; 4437b36b6e0Skxie@chelsio.com struct cpl_rx_data_ack *req; 4447b36b6e0Skxie@chelsio.com 4457b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 4467b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, credit %u.\n", 4477b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, credits); 4487b36b6e0Skxie@chelsio.com 44924d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_ATOMIC); 4507b36b6e0Skxie@chelsio.com if (!skb) { 4517b36b6e0Skxie@chelsio.com pr_info("csk 0x%p, credit %u, OOM.\n", csk, credits); 4527b36b6e0Skxie@chelsio.com return 0; 4537b36b6e0Skxie@chelsio.com } 4547b36b6e0Skxie@chelsio.com req = (struct cpl_rx_data_ack *)skb->head; 4557b36b6e0Skxie@chelsio.com 4567b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_ACK, csk->port_id); 4577b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 4587b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_RX_DATA_ACK, 4597b36b6e0Skxie@chelsio.com csk->tid)); 460d7990b0cSAnish Bhatt req->credit_dack = cpu_to_be32(RX_CREDITS_V(credits) 461d7990b0cSAnish Bhatt | RX_FORCE_ACK_F); 4627b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 4637b36b6e0Skxie@chelsio.com return credits; 4647b36b6e0Skxie@chelsio.com } 4657b36b6e0Skxie@chelsio.com 4667b36b6e0Skxie@chelsio.com /* 4677b36b6e0Skxie@chelsio.com * sgl_len - calculates the size of an SGL of the given capacity 4687b36b6e0Skxie@chelsio.com * @n: the number of SGL entries 4697b36b6e0Skxie@chelsio.com * Calculates the number of flits needed for a scatter/gather list that 4707b36b6e0Skxie@chelsio.com * can hold the given number of entries. 4717b36b6e0Skxie@chelsio.com */ 4727b36b6e0Skxie@chelsio.com static inline unsigned int sgl_len(unsigned int n) 4737b36b6e0Skxie@chelsio.com { 4747b36b6e0Skxie@chelsio.com n--; 4757b36b6e0Skxie@chelsio.com return (3 * n) / 2 + (n & 1) + 2; 4767b36b6e0Skxie@chelsio.com } 4777b36b6e0Skxie@chelsio.com 4787b36b6e0Skxie@chelsio.com /* 4797b36b6e0Skxie@chelsio.com * calc_tx_flits_ofld - calculate # of flits for an offload packet 4807b36b6e0Skxie@chelsio.com * @skb: the packet 4817b36b6e0Skxie@chelsio.com * 4827b36b6e0Skxie@chelsio.com * Returns the number of flits needed for the given offload packet. 4837b36b6e0Skxie@chelsio.com * These packets are already fully constructed and no additional headers 4847b36b6e0Skxie@chelsio.com * will be added. 4857b36b6e0Skxie@chelsio.com */ 4867b36b6e0Skxie@chelsio.com static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb) 4877b36b6e0Skxie@chelsio.com { 4887b36b6e0Skxie@chelsio.com unsigned int flits, cnt; 4897b36b6e0Skxie@chelsio.com 4907b36b6e0Skxie@chelsio.com if (is_ofld_imm(skb)) 4917b36b6e0Skxie@chelsio.com return DIV_ROUND_UP(skb->len, 8); 4927b36b6e0Skxie@chelsio.com flits = skb_transport_offset(skb) / 8; 4937b36b6e0Skxie@chelsio.com cnt = skb_shinfo(skb)->nr_frags; 494499e2e6fSIsaku Yamahata if (skb_tail_pointer(skb) != skb_transport_header(skb)) 4957b36b6e0Skxie@chelsio.com cnt++; 4967b36b6e0Skxie@chelsio.com return flits + sgl_len(cnt); 4977b36b6e0Skxie@chelsio.com } 4987b36b6e0Skxie@chelsio.com 49964bfead8SKaren Xie #define FLOWC_WR_NPARAMS_MIN 9 50064bfead8SKaren Xie static inline int tx_flowc_wr_credits(int *nparamsp, int *flowclenp) 50164bfead8SKaren Xie { 50264bfead8SKaren Xie int nparams, flowclen16, flowclen; 50364bfead8SKaren Xie 50464bfead8SKaren Xie nparams = FLOWC_WR_NPARAMS_MIN; 50564bfead8SKaren Xie flowclen = offsetof(struct fw_flowc_wr, mnemval[nparams]); 50664bfead8SKaren Xie flowclen16 = DIV_ROUND_UP(flowclen, 16); 50764bfead8SKaren Xie flowclen = flowclen16 * 16; 50864bfead8SKaren Xie /* 50964bfead8SKaren Xie * Return the number of 16-byte credits used by the FlowC request. 51064bfead8SKaren Xie * Pass back the nparams and actual FlowC length if requested. 51164bfead8SKaren Xie */ 51264bfead8SKaren Xie if (nparamsp) 51364bfead8SKaren Xie *nparamsp = nparams; 51464bfead8SKaren Xie if (flowclenp) 51564bfead8SKaren Xie *flowclenp = flowclen; 51664bfead8SKaren Xie 51764bfead8SKaren Xie return flowclen16; 51864bfead8SKaren Xie } 51964bfead8SKaren Xie 52064bfead8SKaren Xie static inline int send_tx_flowc_wr(struct cxgbi_sock *csk) 5217b36b6e0Skxie@chelsio.com { 5227b36b6e0Skxie@chelsio.com struct sk_buff *skb; 5237b36b6e0Skxie@chelsio.com struct fw_flowc_wr *flowc; 52464bfead8SKaren Xie int nparams, flowclen16, flowclen; 5257b36b6e0Skxie@chelsio.com 52664bfead8SKaren Xie flowclen16 = tx_flowc_wr_credits(&nparams, &flowclen); 52724d3f95aSkxie@chelsio.com skb = alloc_wr(flowclen, 0, GFP_ATOMIC); 5287b36b6e0Skxie@chelsio.com flowc = (struct fw_flowc_wr *)skb->head; 5297b36b6e0Skxie@chelsio.com flowc->op_to_nparams = 53064bfead8SKaren Xie htonl(FW_WR_OP_V(FW_FLOWC_WR) | FW_FLOWC_WR_NPARAMS_V(nparams)); 5317b36b6e0Skxie@chelsio.com flowc->flowid_len16 = 53264bfead8SKaren Xie htonl(FW_WR_LEN16_V(flowclen16) | FW_WR_FLOWID_V(csk->tid)); 5337b36b6e0Skxie@chelsio.com flowc->mnemval[0].mnemonic = FW_FLOWC_MNEM_PFNVFN; 534e27d6169Skxie@chelsio.com flowc->mnemval[0].val = htonl(csk->cdev->pfvf); 5357b36b6e0Skxie@chelsio.com flowc->mnemval[1].mnemonic = FW_FLOWC_MNEM_CH; 5367b36b6e0Skxie@chelsio.com flowc->mnemval[1].val = htonl(csk->tx_chan); 5377b36b6e0Skxie@chelsio.com flowc->mnemval[2].mnemonic = FW_FLOWC_MNEM_PORT; 5387b36b6e0Skxie@chelsio.com flowc->mnemval[2].val = htonl(csk->tx_chan); 5397b36b6e0Skxie@chelsio.com flowc->mnemval[3].mnemonic = FW_FLOWC_MNEM_IQID; 5407b36b6e0Skxie@chelsio.com flowc->mnemval[3].val = htonl(csk->rss_qid); 5417b36b6e0Skxie@chelsio.com flowc->mnemval[4].mnemonic = FW_FLOWC_MNEM_SNDNXT; 5427b36b6e0Skxie@chelsio.com flowc->mnemval[4].val = htonl(csk->snd_nxt); 5437b36b6e0Skxie@chelsio.com flowc->mnemval[5].mnemonic = FW_FLOWC_MNEM_RCVNXT; 5447b36b6e0Skxie@chelsio.com flowc->mnemval[5].val = htonl(csk->rcv_nxt); 5457b36b6e0Skxie@chelsio.com flowc->mnemval[6].mnemonic = FW_FLOWC_MNEM_SNDBUF; 5467b36b6e0Skxie@chelsio.com flowc->mnemval[6].val = htonl(cxgb4i_snd_win); 5477b36b6e0Skxie@chelsio.com flowc->mnemval[7].mnemonic = FW_FLOWC_MNEM_MSS; 5487b36b6e0Skxie@chelsio.com flowc->mnemval[7].val = htonl(csk->advmss); 5497b36b6e0Skxie@chelsio.com flowc->mnemval[8].mnemonic = 0; 5507b36b6e0Skxie@chelsio.com flowc->mnemval[8].val = 0; 55164bfead8SKaren Xie flowc->mnemval[8].mnemonic = FW_FLOWC_MNEM_TXDATAPLEN_MAX; 55264bfead8SKaren Xie flowc->mnemval[8].val = 16384; 55364bfead8SKaren Xie 5542126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 5557b36b6e0Skxie@chelsio.com 5567b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 5577b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, %u,%u,%u,%u,%u,%u,%u.\n", 5587b36b6e0Skxie@chelsio.com csk, csk->tid, 0, csk->tx_chan, csk->rss_qid, 5597b36b6e0Skxie@chelsio.com csk->snd_nxt, csk->rcv_nxt, cxgb4i_snd_win, 5607b36b6e0Skxie@chelsio.com csk->advmss); 5617b36b6e0Skxie@chelsio.com 5627b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 56364bfead8SKaren Xie 56464bfead8SKaren Xie return flowclen16; 5657b36b6e0Skxie@chelsio.com } 5667b36b6e0Skxie@chelsio.com 5677b36b6e0Skxie@chelsio.com static inline void make_tx_data_wr(struct cxgbi_sock *csk, struct sk_buff *skb, 5687b36b6e0Skxie@chelsio.com int dlen, int len, u32 credits, int compl) 5697b36b6e0Skxie@chelsio.com { 5707b36b6e0Skxie@chelsio.com struct fw_ofld_tx_data_wr *req; 5717b36b6e0Skxie@chelsio.com unsigned int submode = cxgbi_skcb_ulp_mode(skb) & 3; 572e2ac9628SHariprasad Shenai unsigned int wr_ulp_mode = 0, val; 5737857c62aSKaren Xie bool imm = is_ofld_imm(skb); 5747b36b6e0Skxie@chelsio.com 5757b36b6e0Skxie@chelsio.com req = (struct fw_ofld_tx_data_wr *)__skb_push(skb, sizeof(*req)); 5767b36b6e0Skxie@chelsio.com 5777857c62aSKaren Xie if (imm) { 578e2ac9628SHariprasad Shenai req->op_to_immdlen = htonl(FW_WR_OP_V(FW_OFLD_TX_DATA_WR) | 579e2ac9628SHariprasad Shenai FW_WR_COMPL_F | 580e2ac9628SHariprasad Shenai FW_WR_IMMDLEN_V(dlen)); 581e2ac9628SHariprasad Shenai req->flowid_len16 = htonl(FW_WR_FLOWID_V(csk->tid) | 582e2ac9628SHariprasad Shenai FW_WR_LEN16_V(credits)); 5837b36b6e0Skxie@chelsio.com } else { 5847b36b6e0Skxie@chelsio.com req->op_to_immdlen = 585e2ac9628SHariprasad Shenai cpu_to_be32(FW_WR_OP_V(FW_OFLD_TX_DATA_WR) | 586e2ac9628SHariprasad Shenai FW_WR_COMPL_F | 587e2ac9628SHariprasad Shenai FW_WR_IMMDLEN_V(0)); 5887b36b6e0Skxie@chelsio.com req->flowid_len16 = 589e2ac9628SHariprasad Shenai cpu_to_be32(FW_WR_FLOWID_V(csk->tid) | 590e2ac9628SHariprasad Shenai FW_WR_LEN16_V(credits)); 5917b36b6e0Skxie@chelsio.com } 5927b36b6e0Skxie@chelsio.com if (submode) 593e2ac9628SHariprasad Shenai wr_ulp_mode = FW_OFLD_TX_DATA_WR_ULPMODE_V(ULP2_MODE_ISCSI) | 594e2ac9628SHariprasad Shenai FW_OFLD_TX_DATA_WR_ULPSUBMODE_V(submode); 595e2ac9628SHariprasad Shenai val = skb_peek(&csk->write_queue) ? 0 : 1; 5966aca4112SKaren Xie req->tunnel_to_proxy = htonl(wr_ulp_mode | 597e2ac9628SHariprasad Shenai FW_OFLD_TX_DATA_WR_SHOVE_V(val)); 5987b36b6e0Skxie@chelsio.com req->plen = htonl(len); 5997b36b6e0Skxie@chelsio.com if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) 6007b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 6017b36b6e0Skxie@chelsio.com } 6027b36b6e0Skxie@chelsio.com 6037b36b6e0Skxie@chelsio.com static void arp_failure_skb_discard(void *handle, struct sk_buff *skb) 6047b36b6e0Skxie@chelsio.com { 6057b36b6e0Skxie@chelsio.com kfree_skb(skb); 6067b36b6e0Skxie@chelsio.com } 6077b36b6e0Skxie@chelsio.com 6087b36b6e0Skxie@chelsio.com static int push_tx_frames(struct cxgbi_sock *csk, int req_completion) 6097b36b6e0Skxie@chelsio.com { 6107b36b6e0Skxie@chelsio.com int total_size = 0; 6117b36b6e0Skxie@chelsio.com struct sk_buff *skb; 6127b36b6e0Skxie@chelsio.com 6137b36b6e0Skxie@chelsio.com if (unlikely(csk->state < CTP_ESTABLISHED || 6147b36b6e0Skxie@chelsio.com csk->state == CTP_CLOSE_WAIT_1 || csk->state >= CTP_ABORTING)) { 6157b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK | 6167b36b6e0Skxie@chelsio.com 1 << CXGBI_DBG_PDU_TX, 6177b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, in closing state.\n", 6187b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 6197b36b6e0Skxie@chelsio.com return 0; 6207b36b6e0Skxie@chelsio.com } 6217b36b6e0Skxie@chelsio.com 6227b36b6e0Skxie@chelsio.com while (csk->wr_cred && (skb = skb_peek(&csk->write_queue)) != NULL) { 6237b36b6e0Skxie@chelsio.com int dlen = skb->len; 6247b36b6e0Skxie@chelsio.com int len = skb->len; 6257b36b6e0Skxie@chelsio.com unsigned int credits_needed; 62664bfead8SKaren Xie int flowclen16 = 0; 6277b36b6e0Skxie@chelsio.com 6287b36b6e0Skxie@chelsio.com skb_reset_transport_header(skb); 6297b36b6e0Skxie@chelsio.com if (is_ofld_imm(skb)) 63084944d8cSKaren Xie credits_needed = DIV_ROUND_UP(dlen, 16); 6317b36b6e0Skxie@chelsio.com else 63284944d8cSKaren Xie credits_needed = DIV_ROUND_UP( 63384944d8cSKaren Xie 8 * calc_tx_flits_ofld(skb), 63484944d8cSKaren Xie 16); 63584944d8cSKaren Xie 63684944d8cSKaren Xie if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) 63784944d8cSKaren Xie credits_needed += DIV_ROUND_UP( 63884944d8cSKaren Xie sizeof(struct fw_ofld_tx_data_wr), 6397b36b6e0Skxie@chelsio.com 16); 6407b36b6e0Skxie@chelsio.com 64164bfead8SKaren Xie /* 64264bfead8SKaren Xie * Assumes the initial credits is large enough to support 64364bfead8SKaren Xie * fw_flowc_wr plus largest possible first payload 64464bfead8SKaren Xie */ 64564bfead8SKaren Xie if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) { 64664bfead8SKaren Xie flowclen16 = send_tx_flowc_wr(csk); 64764bfead8SKaren Xie csk->wr_cred -= flowclen16; 64864bfead8SKaren Xie csk->wr_una_cred += flowclen16; 64964bfead8SKaren Xie cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 65064bfead8SKaren Xie } 65164bfead8SKaren Xie 6527b36b6e0Skxie@chelsio.com if (csk->wr_cred < credits_needed) { 6537b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_TX, 6547b36b6e0Skxie@chelsio.com "csk 0x%p, skb %u/%u, wr %d < %u.\n", 6557b36b6e0Skxie@chelsio.com csk, skb->len, skb->data_len, 6567b36b6e0Skxie@chelsio.com credits_needed, csk->wr_cred); 6577b36b6e0Skxie@chelsio.com break; 6587b36b6e0Skxie@chelsio.com } 6597b36b6e0Skxie@chelsio.com __skb_unlink(skb, &csk->write_queue); 6602126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 66164bfead8SKaren Xie skb->csum = credits_needed + flowclen16; 6627b36b6e0Skxie@chelsio.com csk->wr_cred -= credits_needed; 6637b36b6e0Skxie@chelsio.com csk->wr_una_cred += credits_needed; 6647b36b6e0Skxie@chelsio.com cxgbi_sock_enqueue_wr(csk, skb); 6657b36b6e0Skxie@chelsio.com 6667b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_TX, 6677b36b6e0Skxie@chelsio.com "csk 0x%p, skb %u/%u, wr %d, left %u, unack %u.\n", 6687b36b6e0Skxie@chelsio.com csk, skb->len, skb->data_len, credits_needed, 6697b36b6e0Skxie@chelsio.com csk->wr_cred, csk->wr_una_cred); 6707b36b6e0Skxie@chelsio.com 6717b36b6e0Skxie@chelsio.com if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) { 6727b36b6e0Skxie@chelsio.com len += cxgbi_ulp_extra_len(cxgbi_skcb_ulp_mode(skb)); 6737b36b6e0Skxie@chelsio.com make_tx_data_wr(csk, skb, dlen, len, credits_needed, 6747b36b6e0Skxie@chelsio.com req_completion); 6757b36b6e0Skxie@chelsio.com csk->snd_nxt += len; 6767b36b6e0Skxie@chelsio.com cxgbi_skcb_clear_flag(skb, SKCBF_TX_NEED_HDR); 6777b36b6e0Skxie@chelsio.com } 6787b36b6e0Skxie@chelsio.com total_size += skb->truesize; 6797b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, arp_failure_skb_discard); 6807b36b6e0Skxie@chelsio.com 6817b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_TX, 6827b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, skb 0x%p, %u.\n", 6837b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb, len); 6847b36b6e0Skxie@chelsio.com 6857b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 6867b36b6e0Skxie@chelsio.com } 6877b36b6e0Skxie@chelsio.com return total_size; 6887b36b6e0Skxie@chelsio.com } 6897b36b6e0Skxie@chelsio.com 6907b36b6e0Skxie@chelsio.com static inline void free_atid(struct cxgbi_sock *csk) 6917b36b6e0Skxie@chelsio.com { 6927b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 6937b36b6e0Skxie@chelsio.com 6947b36b6e0Skxie@chelsio.com if (cxgbi_sock_flag(csk, CTPF_HAS_ATID)) { 6957b36b6e0Skxie@chelsio.com cxgb4_free_atid(lldi->tids, csk->atid); 6967b36b6e0Skxie@chelsio.com cxgbi_sock_clear_flag(csk, CTPF_HAS_ATID); 6977b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 6987b36b6e0Skxie@chelsio.com } 6997b36b6e0Skxie@chelsio.com } 7007b36b6e0Skxie@chelsio.com 7017b36b6e0Skxie@chelsio.com static void do_act_establish(struct cxgbi_device *cdev, struct sk_buff *skb) 7027b36b6e0Skxie@chelsio.com { 7037b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 7047b36b6e0Skxie@chelsio.com struct cpl_act_establish *req = (struct cpl_act_establish *)skb->data; 7057b36b6e0Skxie@chelsio.com unsigned short tcp_opt = ntohs(req->tcp_opt); 7067b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 707*6c53e938SHariprasad Shenai unsigned int atid = TID_TID_G(ntohl(req->tos_atid)); 7087b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 7097b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 7107b36b6e0Skxie@chelsio.com u32 rcv_isn = be32_to_cpu(req->rcv_isn); 7117b36b6e0Skxie@chelsio.com 7127b36b6e0Skxie@chelsio.com csk = lookup_atid(t, atid); 7137b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 7147b36b6e0Skxie@chelsio.com pr_err("NO conn. for atid %u, cdev 0x%p.\n", atid, cdev); 7157b36b6e0Skxie@chelsio.com goto rel_skb; 7167b36b6e0Skxie@chelsio.com } 7177b36b6e0Skxie@chelsio.com 718e27d6169Skxie@chelsio.com if (csk->atid != atid) { 719e27d6169Skxie@chelsio.com pr_err("bad conn atid %u, csk 0x%p,%u,0x%lx,tid %u, atid %u.\n", 720e27d6169Skxie@chelsio.com atid, csk, csk->state, csk->flags, csk->tid, csk->atid); 721e27d6169Skxie@chelsio.com goto rel_skb; 722e27d6169Skxie@chelsio.com } 723e27d6169Skxie@chelsio.com 724759a0cc5SAnish Bhatt pr_info_ipaddr("atid 0x%x, tid 0x%x, csk 0x%p,%u,0x%lx, isn %u.\n", 725759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 726759a0cc5SAnish Bhatt atid, tid, csk, csk->state, csk->flags, rcv_isn); 727759a0cc5SAnish Bhatt 728759a0cc5SAnish Bhatt module_put(THIS_MODULE); 7297b36b6e0Skxie@chelsio.com 7307b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 7317b36b6e0Skxie@chelsio.com csk->tid = tid; 7327b36b6e0Skxie@chelsio.com cxgb4_insert_tid(lldi->tids, csk, tid); 7337b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_HAS_TID); 7347b36b6e0Skxie@chelsio.com 7357b36b6e0Skxie@chelsio.com free_atid(csk); 7367b36b6e0Skxie@chelsio.com 7377b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 7387b36b6e0Skxie@chelsio.com if (unlikely(csk->state != CTP_ACTIVE_OPEN)) 7397b36b6e0Skxie@chelsio.com pr_info("csk 0x%p,%u,0x%lx,%u, got EST.\n", 7407b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 7417b36b6e0Skxie@chelsio.com 7427b36b6e0Skxie@chelsio.com if (csk->retry_timer.function) { 7437b36b6e0Skxie@chelsio.com del_timer(&csk->retry_timer); 7447b36b6e0Skxie@chelsio.com csk->retry_timer.function = NULL; 7457b36b6e0Skxie@chelsio.com } 7467b36b6e0Skxie@chelsio.com 7477b36b6e0Skxie@chelsio.com csk->copied_seq = csk->rcv_wup = csk->rcv_nxt = rcv_isn; 7487b36b6e0Skxie@chelsio.com /* 7497b36b6e0Skxie@chelsio.com * Causes the first RX_DATA_ACK to supply any Rx credits we couldn't 7507b36b6e0Skxie@chelsio.com * pass through opt0. 7517b36b6e0Skxie@chelsio.com */ 7527b36b6e0Skxie@chelsio.com if (cxgb4i_rcv_win > (RCV_BUFSIZ_MASK << 10)) 7537b36b6e0Skxie@chelsio.com csk->rcv_wup -= cxgb4i_rcv_win - (RCV_BUFSIZ_MASK << 10); 7547b36b6e0Skxie@chelsio.com 755*6c53e938SHariprasad Shenai csk->advmss = lldi->mtus[TCPOPT_MSS_G(tcp_opt)] - 40; 756*6c53e938SHariprasad Shenai if (TCPOPT_TSTAMP_G(tcp_opt)) 7577b36b6e0Skxie@chelsio.com csk->advmss -= 12; 7587b36b6e0Skxie@chelsio.com if (csk->advmss < 128) 7597b36b6e0Skxie@chelsio.com csk->advmss = 128; 7607b36b6e0Skxie@chelsio.com 7617b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 7627b36b6e0Skxie@chelsio.com "csk 0x%p, mss_idx %u, advmss %u.\n", 763*6c53e938SHariprasad Shenai csk, TCPOPT_MSS_G(tcp_opt), csk->advmss); 7647b36b6e0Skxie@chelsio.com 7657b36b6e0Skxie@chelsio.com cxgbi_sock_established(csk, ntohl(req->snd_isn), ntohs(req->tcp_opt)); 7667b36b6e0Skxie@chelsio.com 7677b36b6e0Skxie@chelsio.com if (unlikely(cxgbi_sock_flag(csk, CTPF_ACTIVE_CLOSE_NEEDED))) 7687b36b6e0Skxie@chelsio.com send_abort_req(csk); 7697b36b6e0Skxie@chelsio.com else { 7707b36b6e0Skxie@chelsio.com if (skb_queue_len(&csk->write_queue)) 7717b36b6e0Skxie@chelsio.com push_tx_frames(csk, 0); 7727b36b6e0Skxie@chelsio.com cxgbi_conn_tx_open(csk); 7737b36b6e0Skxie@chelsio.com } 7747b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 7757b36b6e0Skxie@chelsio.com 7767b36b6e0Skxie@chelsio.com rel_skb: 7777b36b6e0Skxie@chelsio.com __kfree_skb(skb); 7787b36b6e0Skxie@chelsio.com } 7797b36b6e0Skxie@chelsio.com 7807b36b6e0Skxie@chelsio.com static int act_open_rpl_status_to_errno(int status) 7817b36b6e0Skxie@chelsio.com { 7827b36b6e0Skxie@chelsio.com switch (status) { 7837b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_RESET: 7847b36b6e0Skxie@chelsio.com return -ECONNREFUSED; 7857b36b6e0Skxie@chelsio.com case CPL_ERR_ARP_MISS: 7867b36b6e0Skxie@chelsio.com return -EHOSTUNREACH; 7877b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_TIMEDOUT: 7887b36b6e0Skxie@chelsio.com return -ETIMEDOUT; 7897b36b6e0Skxie@chelsio.com case CPL_ERR_TCAM_FULL: 7907b36b6e0Skxie@chelsio.com return -ENOMEM; 7917b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_EXIST: 7927b36b6e0Skxie@chelsio.com return -EADDRINUSE; 7937b36b6e0Skxie@chelsio.com default: 7947b36b6e0Skxie@chelsio.com return -EIO; 7957b36b6e0Skxie@chelsio.com } 7967b36b6e0Skxie@chelsio.com } 7977b36b6e0Skxie@chelsio.com 7987b36b6e0Skxie@chelsio.com static void csk_act_open_retry_timer(unsigned long data) 7997b36b6e0Skxie@chelsio.com { 800001586a7SAnish Bhatt struct sk_buff *skb = NULL; 8017b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk = (struct cxgbi_sock *)data; 8023bd3e8bfSKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 803759a0cc5SAnish Bhatt void (*send_act_open_func)(struct cxgbi_sock *, struct sk_buff *, 804759a0cc5SAnish Bhatt struct l2t_entry *); 805759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type), size, size6; 8067b36b6e0Skxie@chelsio.com 8077b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 8087b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 8097b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 8107b36b6e0Skxie@chelsio.com 8117b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 8127b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 813759a0cc5SAnish Bhatt 814759a0cc5SAnish Bhatt if (t4) { 815759a0cc5SAnish Bhatt size = sizeof(struct cpl_act_open_req); 816759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_act_open_req6); 817759a0cc5SAnish Bhatt } else { 818759a0cc5SAnish Bhatt size = sizeof(struct cpl_t5_act_open_req); 819759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_t5_act_open_req6); 820759a0cc5SAnish Bhatt } 821759a0cc5SAnish Bhatt 822759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) { 823759a0cc5SAnish Bhatt send_act_open_func = send_act_open_req; 824759a0cc5SAnish Bhatt skb = alloc_wr(size, 0, GFP_ATOMIC); 825f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 826759a0cc5SAnish Bhatt } else { 827759a0cc5SAnish Bhatt send_act_open_func = send_act_open_req6; 828759a0cc5SAnish Bhatt skb = alloc_wr(size6, 0, GFP_ATOMIC); 829f42bb57cSAnish Bhatt #endif 830759a0cc5SAnish Bhatt } 831759a0cc5SAnish Bhatt 8327b36b6e0Skxie@chelsio.com if (!skb) 8337b36b6e0Skxie@chelsio.com cxgbi_sock_fail_act_open(csk, -ENOMEM); 8347b36b6e0Skxie@chelsio.com else { 8357b36b6e0Skxie@chelsio.com skb->sk = (struct sock *)csk; 8367b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, 8377b36b6e0Skxie@chelsio.com cxgbi_sock_act_open_req_arp_failure); 838759a0cc5SAnish Bhatt send_act_open_func(csk, skb, csk->l2t); 8397b36b6e0Skxie@chelsio.com } 840759a0cc5SAnish Bhatt 8417b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 8427b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 843759a0cc5SAnish Bhatt 8447b36b6e0Skxie@chelsio.com } 8457b36b6e0Skxie@chelsio.com 846928567adSKaren Xie static inline bool is_neg_adv(unsigned int status) 847928567adSKaren Xie { 848928567adSKaren Xie return status == CPL_ERR_RTX_NEG_ADVICE || 849928567adSKaren Xie status == CPL_ERR_KEEPALV_NEG_ADVICE || 850928567adSKaren Xie status == CPL_ERR_PERSIST_NEG_ADVICE; 851928567adSKaren Xie } 852928567adSKaren Xie 8537b36b6e0Skxie@chelsio.com static void do_act_open_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 8547b36b6e0Skxie@chelsio.com { 8557b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 8567b36b6e0Skxie@chelsio.com struct cpl_act_open_rpl *rpl = (struct cpl_act_open_rpl *)skb->data; 8577b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 8587b36b6e0Skxie@chelsio.com unsigned int atid = 859*6c53e938SHariprasad Shenai TID_TID_G(AOPEN_ATID_G(be32_to_cpu(rpl->atid_status))); 860*6c53e938SHariprasad Shenai unsigned int status = AOPEN_STATUS_G(be32_to_cpu(rpl->atid_status)); 8617b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 8627b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 8637b36b6e0Skxie@chelsio.com 8647b36b6e0Skxie@chelsio.com csk = lookup_atid(t, atid); 8657b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 8667b36b6e0Skxie@chelsio.com pr_err("NO matching conn. atid %u, tid %u.\n", atid, tid); 8677b36b6e0Skxie@chelsio.com goto rel_skb; 8687b36b6e0Skxie@chelsio.com } 8697b36b6e0Skxie@chelsio.com 870759a0cc5SAnish Bhatt pr_info_ipaddr("tid %u/%u, status %u.\n" 871759a0cc5SAnish Bhatt "csk 0x%p,%u,0x%lx. ", (&csk->saddr), (&csk->daddr), 872e27d6169Skxie@chelsio.com atid, tid, status, csk, csk->state, csk->flags); 8737b36b6e0Skxie@chelsio.com 874928567adSKaren Xie if (is_neg_adv(status)) 875150cca7cSKaren Xie goto rel_skb; 876150cca7cSKaren Xie 877ee7255adSAnish Bhatt module_put(THIS_MODULE); 878ee7255adSAnish Bhatt 8797b36b6e0Skxie@chelsio.com if (status && status != CPL_ERR_TCAM_FULL && 8807b36b6e0Skxie@chelsio.com status != CPL_ERR_CONN_EXIST && 8817b36b6e0Skxie@chelsio.com status != CPL_ERR_ARP_MISS) 8827b36b6e0Skxie@chelsio.com cxgb4_remove_tid(lldi->tids, csk->port_id, GET_TID(rpl)); 8837b36b6e0Skxie@chelsio.com 8847b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 8857b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 8867b36b6e0Skxie@chelsio.com 8877b36b6e0Skxie@chelsio.com if (status == CPL_ERR_CONN_EXIST && 8887b36b6e0Skxie@chelsio.com csk->retry_timer.function != csk_act_open_retry_timer) { 8897b36b6e0Skxie@chelsio.com csk->retry_timer.function = csk_act_open_retry_timer; 8907b36b6e0Skxie@chelsio.com mod_timer(&csk->retry_timer, jiffies + HZ / 2); 8917b36b6e0Skxie@chelsio.com } else 8927b36b6e0Skxie@chelsio.com cxgbi_sock_fail_act_open(csk, 8937b36b6e0Skxie@chelsio.com act_open_rpl_status_to_errno(status)); 8947b36b6e0Skxie@chelsio.com 8957b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 8967b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 8977b36b6e0Skxie@chelsio.com rel_skb: 8987b36b6e0Skxie@chelsio.com __kfree_skb(skb); 8997b36b6e0Skxie@chelsio.com } 9007b36b6e0Skxie@chelsio.com 9017b36b6e0Skxie@chelsio.com static void do_peer_close(struct cxgbi_device *cdev, struct sk_buff *skb) 9027b36b6e0Skxie@chelsio.com { 9037b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 9047b36b6e0Skxie@chelsio.com struct cpl_peer_close *req = (struct cpl_peer_close *)skb->data; 9057b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 9067b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 9077b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 9087b36b6e0Skxie@chelsio.com 9097b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 9107b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 9117b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 9127b36b6e0Skxie@chelsio.com goto rel_skb; 9137b36b6e0Skxie@chelsio.com } 914759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n", 915759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 9167b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 9177b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_peer_close(csk); 9187b36b6e0Skxie@chelsio.com rel_skb: 9197b36b6e0Skxie@chelsio.com __kfree_skb(skb); 9207b36b6e0Skxie@chelsio.com } 9217b36b6e0Skxie@chelsio.com 9227b36b6e0Skxie@chelsio.com static void do_close_con_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 9237b36b6e0Skxie@chelsio.com { 9247b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 9257b36b6e0Skxie@chelsio.com struct cpl_close_con_rpl *rpl = (struct cpl_close_con_rpl *)skb->data; 9267b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 9277b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 9287b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 9297b36b6e0Skxie@chelsio.com 9307b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 9317b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 9327b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 9337b36b6e0Skxie@chelsio.com goto rel_skb; 9347b36b6e0Skxie@chelsio.com } 935759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n", 936759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 9377b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 9387b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_close_conn_rpl(csk, ntohl(rpl->snd_nxt)); 9397b36b6e0Skxie@chelsio.com rel_skb: 9407b36b6e0Skxie@chelsio.com __kfree_skb(skb); 9417b36b6e0Skxie@chelsio.com } 9427b36b6e0Skxie@chelsio.com 9437b36b6e0Skxie@chelsio.com static int abort_status_to_errno(struct cxgbi_sock *csk, int abort_reason, 9447b36b6e0Skxie@chelsio.com int *need_rst) 9457b36b6e0Skxie@chelsio.com { 9467b36b6e0Skxie@chelsio.com switch (abort_reason) { 9477b36b6e0Skxie@chelsio.com case CPL_ERR_BAD_SYN: /* fall through */ 9487b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_RESET: 9497b36b6e0Skxie@chelsio.com return csk->state > CTP_ESTABLISHED ? 9507b36b6e0Skxie@chelsio.com -EPIPE : -ECONNRESET; 9517b36b6e0Skxie@chelsio.com case CPL_ERR_XMIT_TIMEDOUT: 9527b36b6e0Skxie@chelsio.com case CPL_ERR_PERSIST_TIMEDOUT: 9537b36b6e0Skxie@chelsio.com case CPL_ERR_FINWAIT2_TIMEDOUT: 9547b36b6e0Skxie@chelsio.com case CPL_ERR_KEEPALIVE_TIMEDOUT: 9557b36b6e0Skxie@chelsio.com return -ETIMEDOUT; 9567b36b6e0Skxie@chelsio.com default: 9577b36b6e0Skxie@chelsio.com return -EIO; 9587b36b6e0Skxie@chelsio.com } 9597b36b6e0Skxie@chelsio.com } 9607b36b6e0Skxie@chelsio.com 9617b36b6e0Skxie@chelsio.com static void do_abort_req_rss(struct cxgbi_device *cdev, struct sk_buff *skb) 9627b36b6e0Skxie@chelsio.com { 9637b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 9647b36b6e0Skxie@chelsio.com struct cpl_abort_req_rss *req = (struct cpl_abort_req_rss *)skb->data; 9657b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 9667b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 9677b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 9687b36b6e0Skxie@chelsio.com int rst_status = CPL_ABORT_NO_RST; 9697b36b6e0Skxie@chelsio.com 9707b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 9717b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 9727b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 9737b36b6e0Skxie@chelsio.com goto rel_skb; 9747b36b6e0Skxie@chelsio.com } 9757b36b6e0Skxie@chelsio.com 976759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n", 977759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 9787b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, req->status); 9797b36b6e0Skxie@chelsio.com 980928567adSKaren Xie if (is_neg_adv(req->status)) 9817b36b6e0Skxie@chelsio.com goto rel_skb; 9827b36b6e0Skxie@chelsio.com 9837b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 9847b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 9857b36b6e0Skxie@chelsio.com 9867b07bf24SAnish Bhatt cxgbi_sock_clear_flag(csk, CTPF_ABORT_REQ_RCVD); 9877b07bf24SAnish Bhatt 9887b07bf24SAnish Bhatt if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) { 9897b07bf24SAnish Bhatt send_tx_flowc_wr(csk); 9907b07bf24SAnish Bhatt cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 9917b36b6e0Skxie@chelsio.com } 9927b36b6e0Skxie@chelsio.com 9937b07bf24SAnish Bhatt cxgbi_sock_set_flag(csk, CTPF_ABORT_REQ_RCVD); 9947b07bf24SAnish Bhatt cxgbi_sock_set_state(csk, CTP_ABORTING); 9957b07bf24SAnish Bhatt 9967b36b6e0Skxie@chelsio.com send_abort_rpl(csk, rst_status); 9977b36b6e0Skxie@chelsio.com 9987b36b6e0Skxie@chelsio.com if (!cxgbi_sock_flag(csk, CTPF_ABORT_RPL_PENDING)) { 9997b36b6e0Skxie@chelsio.com csk->err = abort_status_to_errno(csk, req->status, &rst_status); 10007b36b6e0Skxie@chelsio.com cxgbi_sock_closed(csk); 10017b36b6e0Skxie@chelsio.com } 10027b07bf24SAnish Bhatt 10037b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 10047b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 10057b36b6e0Skxie@chelsio.com rel_skb: 10067b36b6e0Skxie@chelsio.com __kfree_skb(skb); 10077b36b6e0Skxie@chelsio.com } 10087b36b6e0Skxie@chelsio.com 10097b36b6e0Skxie@chelsio.com static void do_abort_rpl_rss(struct cxgbi_device *cdev, struct sk_buff *skb) 10107b36b6e0Skxie@chelsio.com { 10117b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 10127b36b6e0Skxie@chelsio.com struct cpl_abort_rpl_rss *rpl = (struct cpl_abort_rpl_rss *)skb->data; 10137b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 10147b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 10157b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 10167b36b6e0Skxie@chelsio.com 10177b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 10187b36b6e0Skxie@chelsio.com if (!csk) 10197b36b6e0Skxie@chelsio.com goto rel_skb; 10207b36b6e0Skxie@chelsio.com 1021759a0cc5SAnish Bhatt if (csk) 1022759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n", 1023759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), csk, 1024759a0cc5SAnish Bhatt csk->state, csk->flags, csk->tid, rpl->status); 10257b36b6e0Skxie@chelsio.com 10267b36b6e0Skxie@chelsio.com if (rpl->status == CPL_ERR_ABORT_FAILED) 10277b36b6e0Skxie@chelsio.com goto rel_skb; 10287b36b6e0Skxie@chelsio.com 10297b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_abort_rpl(csk); 10307b36b6e0Skxie@chelsio.com rel_skb: 10317b36b6e0Skxie@chelsio.com __kfree_skb(skb); 10327b36b6e0Skxie@chelsio.com } 10337b36b6e0Skxie@chelsio.com 1034f7bcd2e1SKaren Xie static void do_rx_data(struct cxgbi_device *cdev, struct sk_buff *skb) 1035f7bcd2e1SKaren Xie { 1036f7bcd2e1SKaren Xie struct cxgbi_sock *csk; 1037f7bcd2e1SKaren Xie struct cpl_rx_data *cpl = (struct cpl_rx_data *)skb->data; 1038f7bcd2e1SKaren Xie unsigned int tid = GET_TID(cpl); 1039f7bcd2e1SKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 1040f7bcd2e1SKaren Xie struct tid_info *t = lldi->tids; 1041f7bcd2e1SKaren Xie 1042f7bcd2e1SKaren Xie csk = lookup_tid(t, tid); 1043f7bcd2e1SKaren Xie if (!csk) { 1044f7bcd2e1SKaren Xie pr_err("can't find connection for tid %u.\n", tid); 1045f7bcd2e1SKaren Xie } else { 1046f7bcd2e1SKaren Xie /* not expecting this, reset the connection. */ 1047f7bcd2e1SKaren Xie pr_err("csk 0x%p, tid %u, rcv cpl_rx_data.\n", csk, tid); 1048f7bcd2e1SKaren Xie spin_lock_bh(&csk->lock); 1049f7bcd2e1SKaren Xie send_abort_req(csk); 1050f7bcd2e1SKaren Xie spin_unlock_bh(&csk->lock); 1051f7bcd2e1SKaren Xie } 1052f7bcd2e1SKaren Xie __kfree_skb(skb); 1053f7bcd2e1SKaren Xie } 1054f7bcd2e1SKaren Xie 10557b36b6e0Skxie@chelsio.com static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb) 10567b36b6e0Skxie@chelsio.com { 10577b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 10587b36b6e0Skxie@chelsio.com struct cpl_iscsi_hdr *cpl = (struct cpl_iscsi_hdr *)skb->data; 10597b36b6e0Skxie@chelsio.com unsigned short pdu_len_ddp = be16_to_cpu(cpl->pdu_len_ddp); 10607b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(cpl); 10617b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 10627b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 10637b36b6e0Skxie@chelsio.com 10647b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 10657b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 10667b36b6e0Skxie@chelsio.com pr_err("can't find conn. for tid %u.\n", tid); 10677b36b6e0Skxie@chelsio.com goto rel_skb; 10687b36b6e0Skxie@chelsio.com } 10697b36b6e0Skxie@chelsio.com 10707b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 10717b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p,%u, 0x%x.\n", 10727b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb, skb->len, 10737b36b6e0Skxie@chelsio.com pdu_len_ddp); 10747b36b6e0Skxie@chelsio.com 10757b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 10767b36b6e0Skxie@chelsio.com 10777b36b6e0Skxie@chelsio.com if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) { 10787b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 10797b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, bad state.\n", 10807b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 10817b36b6e0Skxie@chelsio.com if (csk->state != CTP_ABORTING) 10827b36b6e0Skxie@chelsio.com goto abort_conn; 10837b36b6e0Skxie@chelsio.com else 10847b36b6e0Skxie@chelsio.com goto discard; 10857b36b6e0Skxie@chelsio.com } 10867b36b6e0Skxie@chelsio.com 10877b36b6e0Skxie@chelsio.com cxgbi_skcb_tcp_seq(skb) = ntohl(cpl->seq); 1088e27d6169Skxie@chelsio.com cxgbi_skcb_flags(skb) = 0; 1089e27d6169Skxie@chelsio.com 10907b36b6e0Skxie@chelsio.com skb_reset_transport_header(skb); 10917b36b6e0Skxie@chelsio.com __skb_pull(skb, sizeof(*cpl)); 10927b36b6e0Skxie@chelsio.com __pskb_trim(skb, ntohs(cpl->len)); 10937b36b6e0Skxie@chelsio.com 10947b36b6e0Skxie@chelsio.com if (!csk->skb_ulp_lhdr) { 10957b36b6e0Skxie@chelsio.com unsigned char *bhs; 10963bd3e8bfSKaren Xie unsigned int hlen, dlen, plen; 10977b36b6e0Skxie@chelsio.com 10987b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 10997b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p header.\n", 11007b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb); 11017b36b6e0Skxie@chelsio.com csk->skb_ulp_lhdr = skb; 1102e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(skb, SKCBF_RX_HDR); 11037b36b6e0Skxie@chelsio.com 1104e27d6169Skxie@chelsio.com if (cxgbi_skcb_tcp_seq(skb) != csk->rcv_nxt) { 11057b36b6e0Skxie@chelsio.com pr_info("tid %u, CPL_ISCSI_HDR, bad seq, 0x%x/0x%x.\n", 1106e27d6169Skxie@chelsio.com csk->tid, cxgbi_skcb_tcp_seq(skb), 11077b36b6e0Skxie@chelsio.com csk->rcv_nxt); 11087b36b6e0Skxie@chelsio.com goto abort_conn; 11097b36b6e0Skxie@chelsio.com } 11107b36b6e0Skxie@chelsio.com 1111e27d6169Skxie@chelsio.com bhs = skb->data; 11127b36b6e0Skxie@chelsio.com hlen = ntohs(cpl->len); 11137b36b6e0Skxie@chelsio.com dlen = ntohl(*(unsigned int *)(bhs + 4)) & 0xFFFFFF; 11147b36b6e0Skxie@chelsio.com 11153bd3e8bfSKaren Xie plen = ISCSI_PDU_LEN(pdu_len_ddp); 11163bd3e8bfSKaren Xie if (is_t4(lldi->adapter_type)) 11173bd3e8bfSKaren Xie plen -= 40; 11183bd3e8bfSKaren Xie 11193bd3e8bfSKaren Xie if ((hlen + dlen) != plen) { 11207b36b6e0Skxie@chelsio.com pr_info("tid 0x%x, CPL_ISCSI_HDR, pdu len " 11217b36b6e0Skxie@chelsio.com "mismatch %u != %u + %u, seq 0x%x.\n", 11223bd3e8bfSKaren Xie csk->tid, plen, hlen, dlen, 11233bd3e8bfSKaren Xie cxgbi_skcb_tcp_seq(skb)); 11247b36b6e0Skxie@chelsio.com goto abort_conn; 11257b36b6e0Skxie@chelsio.com } 11267b36b6e0Skxie@chelsio.com 11277b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_pdulen(skb) = (hlen + dlen + 3) & (~0x3); 11287b36b6e0Skxie@chelsio.com if (dlen) 11297b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_pdulen(skb) += csk->dcrc_len; 11307b36b6e0Skxie@chelsio.com csk->rcv_nxt += cxgbi_skcb_rx_pdulen(skb); 11317b36b6e0Skxie@chelsio.com 11327b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 11337b36b6e0Skxie@chelsio.com "csk 0x%p, skb 0x%p, 0x%x,%u+%u,0x%x,0x%x.\n", 11347b36b6e0Skxie@chelsio.com csk, skb, *bhs, hlen, dlen, 11357b36b6e0Skxie@chelsio.com ntohl(*((unsigned int *)(bhs + 16))), 11367b36b6e0Skxie@chelsio.com ntohl(*((unsigned int *)(bhs + 24)))); 11377b36b6e0Skxie@chelsio.com 11387b36b6e0Skxie@chelsio.com } else { 1139e27d6169Skxie@chelsio.com struct sk_buff *lskb = csk->skb_ulp_lhdr; 11407b36b6e0Skxie@chelsio.com 1141e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA); 11427b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 11437b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, skb 0x%p data, 0x%p.\n", 11447b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, skb, lskb); 11457b36b6e0Skxie@chelsio.com } 11467b36b6e0Skxie@chelsio.com 11477b36b6e0Skxie@chelsio.com __skb_queue_tail(&csk->receive_queue, skb); 11487b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 11497b36b6e0Skxie@chelsio.com return; 11507b36b6e0Skxie@chelsio.com 11517b36b6e0Skxie@chelsio.com abort_conn: 11527b36b6e0Skxie@chelsio.com send_abort_req(csk); 11537b36b6e0Skxie@chelsio.com discard: 11547b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 11557b36b6e0Skxie@chelsio.com rel_skb: 11567b36b6e0Skxie@chelsio.com __kfree_skb(skb); 11577b36b6e0Skxie@chelsio.com } 11587b36b6e0Skxie@chelsio.com 11597b36b6e0Skxie@chelsio.com static void do_rx_data_ddp(struct cxgbi_device *cdev, 11607b36b6e0Skxie@chelsio.com struct sk_buff *skb) 11617b36b6e0Skxie@chelsio.com { 11627b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 11637b36b6e0Skxie@chelsio.com struct sk_buff *lskb; 11647b36b6e0Skxie@chelsio.com struct cpl_rx_data_ddp *rpl = (struct cpl_rx_data_ddp *)skb->data; 11657b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 11667b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 11677b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 11687b36b6e0Skxie@chelsio.com unsigned int status = ntohl(rpl->ddpvld); 11697b36b6e0Skxie@chelsio.com 11707b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 11717b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 11727b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 11737b36b6e0Skxie@chelsio.com goto rel_skb; 11747b36b6e0Skxie@chelsio.com } 11757b36b6e0Skxie@chelsio.com 11767b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 11777b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, skb 0x%p,0x%x, lhdr 0x%p.\n", 11787b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, skb, status, csk->skb_ulp_lhdr); 11797b36b6e0Skxie@chelsio.com 11807b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 11817b36b6e0Skxie@chelsio.com 11827b36b6e0Skxie@chelsio.com if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) { 11837b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 11847b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, bad state.\n", 11857b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 11867b36b6e0Skxie@chelsio.com if (csk->state != CTP_ABORTING) 11877b36b6e0Skxie@chelsio.com goto abort_conn; 11887b36b6e0Skxie@chelsio.com else 11897b36b6e0Skxie@chelsio.com goto discard; 11907b36b6e0Skxie@chelsio.com } 11917b36b6e0Skxie@chelsio.com 11927b36b6e0Skxie@chelsio.com if (!csk->skb_ulp_lhdr) { 11937b36b6e0Skxie@chelsio.com pr_err("tid 0x%x, rcv RX_DATA_DDP w/o pdu bhs.\n", csk->tid); 11947b36b6e0Skxie@chelsio.com goto abort_conn; 11957b36b6e0Skxie@chelsio.com } 11967b36b6e0Skxie@chelsio.com 11977b36b6e0Skxie@chelsio.com lskb = csk->skb_ulp_lhdr; 11987b36b6e0Skxie@chelsio.com csk->skb_ulp_lhdr = NULL; 11997b36b6e0Skxie@chelsio.com 12007b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_ddigest(lskb) = ntohl(rpl->ulp_crc); 12017b36b6e0Skxie@chelsio.com 12027b36b6e0Skxie@chelsio.com if (ntohs(rpl->len) != cxgbi_skcb_rx_pdulen(lskb)) 12037b36b6e0Skxie@chelsio.com pr_info("tid 0x%x, RX_DATA_DDP pdulen %u != %u.\n", 12047b36b6e0Skxie@chelsio.com csk->tid, ntohs(rpl->len), cxgbi_skcb_rx_pdulen(lskb)); 12057b36b6e0Skxie@chelsio.com 12067b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_HCRC_SHIFT)) { 1207e27d6169Skxie@chelsio.com pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, hcrc bad 0x%lx.\n", 1208e27d6169Skxie@chelsio.com csk, lskb, status, cxgbi_skcb_flags(lskb)); 12097b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_HCRC_ERR); 12107b36b6e0Skxie@chelsio.com } 12117b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_DCRC_SHIFT)) { 1212e27d6169Skxie@chelsio.com pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, dcrc bad 0x%lx.\n", 1213e27d6169Skxie@chelsio.com csk, lskb, status, cxgbi_skcb_flags(lskb)); 12147b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DCRC_ERR); 12157b36b6e0Skxie@chelsio.com } 12167b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_PAD_SHIFT)) { 12177b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 12187b36b6e0Skxie@chelsio.com "csk 0x%p, lhdr 0x%p, status 0x%x, pad bad.\n", 12197b36b6e0Skxie@chelsio.com csk, lskb, status); 12207b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_PAD_ERR); 12217b36b6e0Skxie@chelsio.com } 12227b36b6e0Skxie@chelsio.com if ((status & (1 << CPL_RX_DDP_STATUS_DDP_SHIFT)) && 12237b36b6e0Skxie@chelsio.com !cxgbi_skcb_test_flag(lskb, SKCBF_RX_DATA)) { 12247b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 12257b36b6e0Skxie@chelsio.com "csk 0x%p, lhdr 0x%p, 0x%x, data ddp'ed.\n", 12267b36b6e0Skxie@chelsio.com csk, lskb, status); 12277b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA_DDPD); 12287b36b6e0Skxie@chelsio.com } 12297b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 12307b36b6e0Skxie@chelsio.com "csk 0x%p, lskb 0x%p, f 0x%lx.\n", 12317b36b6e0Skxie@chelsio.com csk, lskb, cxgbi_skcb_flags(lskb)); 12327b36b6e0Skxie@chelsio.com 1233e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_STATUS); 12347b36b6e0Skxie@chelsio.com cxgbi_conn_pdu_ready(csk); 12357b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 12367b36b6e0Skxie@chelsio.com goto rel_skb; 12377b36b6e0Skxie@chelsio.com 12387b36b6e0Skxie@chelsio.com abort_conn: 12397b36b6e0Skxie@chelsio.com send_abort_req(csk); 12407b36b6e0Skxie@chelsio.com discard: 12417b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 12427b36b6e0Skxie@chelsio.com rel_skb: 12437b36b6e0Skxie@chelsio.com __kfree_skb(skb); 12447b36b6e0Skxie@chelsio.com } 12457b36b6e0Skxie@chelsio.com 12467b36b6e0Skxie@chelsio.com static void do_fw4_ack(struct cxgbi_device *cdev, struct sk_buff *skb) 12477b36b6e0Skxie@chelsio.com { 12487b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 12497b36b6e0Skxie@chelsio.com struct cpl_fw4_ack *rpl = (struct cpl_fw4_ack *)skb->data; 12507b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 12517b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 12527b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 12537b36b6e0Skxie@chelsio.com 12547b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 12557b36b6e0Skxie@chelsio.com if (unlikely(!csk)) 12567b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 12577b36b6e0Skxie@chelsio.com else { 12587b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 12597b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 12607b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 12617b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_wr_ack(csk, rpl->credits, ntohl(rpl->snd_una), 12627b36b6e0Skxie@chelsio.com rpl->seq_vld); 12637b36b6e0Skxie@chelsio.com } 12647b36b6e0Skxie@chelsio.com __kfree_skb(skb); 12657b36b6e0Skxie@chelsio.com } 12667b36b6e0Skxie@chelsio.com 12677b36b6e0Skxie@chelsio.com static void do_set_tcb_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 12687b36b6e0Skxie@chelsio.com { 12697b36b6e0Skxie@chelsio.com struct cpl_set_tcb_rpl *rpl = (struct cpl_set_tcb_rpl *)skb->data; 12707b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 12717b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 12727b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 12737b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 12747b36b6e0Skxie@chelsio.com 12757b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 12767b36b6e0Skxie@chelsio.com if (!csk) 12777b36b6e0Skxie@chelsio.com pr_err("can't find conn. for tid %u.\n", tid); 12787b36b6e0Skxie@chelsio.com 12797b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 12807b36b6e0Skxie@chelsio.com "csk 0x%p,%u,%lx,%u, status 0x%x.\n", 12817b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, rpl->status); 12827b36b6e0Skxie@chelsio.com 12837b36b6e0Skxie@chelsio.com if (rpl->status != CPL_ERR_NONE) 12847b36b6e0Skxie@chelsio.com pr_err("csk 0x%p,%u, SET_TCB_RPL status %u.\n", 12857b36b6e0Skxie@chelsio.com csk, tid, rpl->status); 12867b36b6e0Skxie@chelsio.com 12877b36b6e0Skxie@chelsio.com __kfree_skb(skb); 12887b36b6e0Skxie@chelsio.com } 12897b36b6e0Skxie@chelsio.com 12907b36b6e0Skxie@chelsio.com static int alloc_cpls(struct cxgbi_sock *csk) 12917b36b6e0Skxie@chelsio.com { 129224d3f95aSkxie@chelsio.com csk->cpl_close = alloc_wr(sizeof(struct cpl_close_con_req), 129324d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 12947b36b6e0Skxie@chelsio.com if (!csk->cpl_close) 12957b36b6e0Skxie@chelsio.com return -ENOMEM; 12967b36b6e0Skxie@chelsio.com 129724d3f95aSkxie@chelsio.com csk->cpl_abort_req = alloc_wr(sizeof(struct cpl_abort_req), 129824d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 12997b36b6e0Skxie@chelsio.com if (!csk->cpl_abort_req) 13007b36b6e0Skxie@chelsio.com goto free_cpls; 13017b36b6e0Skxie@chelsio.com 130224d3f95aSkxie@chelsio.com csk->cpl_abort_rpl = alloc_wr(sizeof(struct cpl_abort_rpl), 130324d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 13047b36b6e0Skxie@chelsio.com if (!csk->cpl_abort_rpl) 13057b36b6e0Skxie@chelsio.com goto free_cpls; 13067b36b6e0Skxie@chelsio.com return 0; 13077b36b6e0Skxie@chelsio.com 13087b36b6e0Skxie@chelsio.com free_cpls: 13097b36b6e0Skxie@chelsio.com cxgbi_sock_free_cpl_skbs(csk); 13107b36b6e0Skxie@chelsio.com return -ENOMEM; 13117b36b6e0Skxie@chelsio.com } 13127b36b6e0Skxie@chelsio.com 13137b36b6e0Skxie@chelsio.com static inline void l2t_put(struct cxgbi_sock *csk) 13147b36b6e0Skxie@chelsio.com { 13157b36b6e0Skxie@chelsio.com if (csk->l2t) { 13167b36b6e0Skxie@chelsio.com cxgb4_l2t_release(csk->l2t); 13177b36b6e0Skxie@chelsio.com csk->l2t = NULL; 13187b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 13197b36b6e0Skxie@chelsio.com } 13207b36b6e0Skxie@chelsio.com } 13217b36b6e0Skxie@chelsio.com 13227b36b6e0Skxie@chelsio.com static void release_offload_resources(struct cxgbi_sock *csk) 13237b36b6e0Skxie@chelsio.com { 13247b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi; 13257b36b6e0Skxie@chelsio.com 13267b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 13277b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 13287b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 13297b36b6e0Skxie@chelsio.com 13307b36b6e0Skxie@chelsio.com cxgbi_sock_free_cpl_skbs(csk); 13317b36b6e0Skxie@chelsio.com if (csk->wr_cred != csk->wr_max_cred) { 13327b36b6e0Skxie@chelsio.com cxgbi_sock_purge_wr_queue(csk); 13337b36b6e0Skxie@chelsio.com cxgbi_sock_reset_wr_list(csk); 13347b36b6e0Skxie@chelsio.com } 13357b36b6e0Skxie@chelsio.com 13367b36b6e0Skxie@chelsio.com l2t_put(csk); 13377b36b6e0Skxie@chelsio.com if (cxgbi_sock_flag(csk, CTPF_HAS_ATID)) 13387b36b6e0Skxie@chelsio.com free_atid(csk); 13397b36b6e0Skxie@chelsio.com else if (cxgbi_sock_flag(csk, CTPF_HAS_TID)) { 13407b36b6e0Skxie@chelsio.com lldi = cxgbi_cdev_priv(csk->cdev); 13417b36b6e0Skxie@chelsio.com cxgb4_remove_tid(lldi->tids, 0, csk->tid); 13427b36b6e0Skxie@chelsio.com cxgbi_sock_clear_flag(csk, CTPF_HAS_TID); 13437b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 13447b36b6e0Skxie@chelsio.com } 13457b36b6e0Skxie@chelsio.com csk->dst = NULL; 13467b36b6e0Skxie@chelsio.com csk->cdev = NULL; 13477b36b6e0Skxie@chelsio.com } 13487b36b6e0Skxie@chelsio.com 13497b36b6e0Skxie@chelsio.com static int init_act_open(struct cxgbi_sock *csk) 13507b36b6e0Skxie@chelsio.com { 13517b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = csk->cdev; 13527b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 13537b36b6e0Skxie@chelsio.com struct net_device *ndev = cdev->ports[csk->port_id]; 13547b36b6e0Skxie@chelsio.com struct sk_buff *skb = NULL; 1355759a0cc5SAnish Bhatt struct neighbour *n = NULL; 1356759a0cc5SAnish Bhatt void *daddr; 13577b36b6e0Skxie@chelsio.com unsigned int step; 1358759a0cc5SAnish Bhatt unsigned int size, size6; 1359759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 13607b36b6e0Skxie@chelsio.com 13617b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 13627b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 13637b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 13647b36b6e0Skxie@chelsio.com 1365759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 1366759a0cc5SAnish Bhatt daddr = &csk->daddr.sin_addr.s_addr; 1367e81fbf6cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1368e81fbf6cSAnish Bhatt else if (csk->csk_family == AF_INET6) 1369759a0cc5SAnish Bhatt daddr = &csk->daddr6.sin6_addr; 1370e81fbf6cSAnish Bhatt #endif 1371e81fbf6cSAnish Bhatt else { 1372e81fbf6cSAnish Bhatt pr_err("address family 0x%x not supported\n", csk->csk_family); 1373e81fbf6cSAnish Bhatt goto rel_resource; 1374e81fbf6cSAnish Bhatt } 1375759a0cc5SAnish Bhatt 1376759a0cc5SAnish Bhatt n = dst_neigh_lookup(csk->dst, daddr); 1377759a0cc5SAnish Bhatt 1378759a0cc5SAnish Bhatt if (!n) { 1379759a0cc5SAnish Bhatt pr_err("%s, can't get neighbour of csk->dst.\n", ndev->name); 1380759a0cc5SAnish Bhatt goto rel_resource; 1381759a0cc5SAnish Bhatt } 1382759a0cc5SAnish Bhatt 13837b36b6e0Skxie@chelsio.com csk->atid = cxgb4_alloc_atid(lldi->tids, csk); 13847b36b6e0Skxie@chelsio.com if (csk->atid < 0) { 13857b36b6e0Skxie@chelsio.com pr_err("%s, NO atid available.\n", ndev->name); 13867b36b6e0Skxie@chelsio.com return -EINVAL; 13877b36b6e0Skxie@chelsio.com } 13887b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_HAS_ATID); 13897b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 13907b36b6e0Skxie@chelsio.com 139151e059bdSDavid Miller csk->l2t = cxgb4_l2t_get(lldi->l2t, n, ndev, 0); 13927b36b6e0Skxie@chelsio.com if (!csk->l2t) { 13937b36b6e0Skxie@chelsio.com pr_err("%s, cannot alloc l2t.\n", ndev->name); 13947b36b6e0Skxie@chelsio.com goto rel_resource; 13957b36b6e0Skxie@chelsio.com } 13967b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 13977b36b6e0Skxie@chelsio.com 1398759a0cc5SAnish Bhatt if (t4) { 1399759a0cc5SAnish Bhatt size = sizeof(struct cpl_act_open_req); 1400759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_act_open_req6); 1401759a0cc5SAnish Bhatt } else { 1402759a0cc5SAnish Bhatt size = sizeof(struct cpl_t5_act_open_req); 1403759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_t5_act_open_req6); 1404759a0cc5SAnish Bhatt } 1405759a0cc5SAnish Bhatt 1406759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 1407759a0cc5SAnish Bhatt skb = alloc_wr(size, 0, GFP_NOIO); 1408f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1409759a0cc5SAnish Bhatt else 1410759a0cc5SAnish Bhatt skb = alloc_wr(size6, 0, GFP_NOIO); 1411f42bb57cSAnish Bhatt #endif 1412759a0cc5SAnish Bhatt 14137b36b6e0Skxie@chelsio.com if (!skb) 14147b36b6e0Skxie@chelsio.com goto rel_resource; 14157b36b6e0Skxie@chelsio.com skb->sk = (struct sock *)csk; 14167b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, cxgbi_sock_act_open_req_arp_failure); 14177b36b6e0Skxie@chelsio.com 14187b36b6e0Skxie@chelsio.com if (!csk->mtu) 14197b36b6e0Skxie@chelsio.com csk->mtu = dst_mtu(csk->dst); 14207b36b6e0Skxie@chelsio.com cxgb4_best_mtu(lldi->mtus, csk->mtu, &csk->mss_idx); 14217b36b6e0Skxie@chelsio.com csk->tx_chan = cxgb4_port_chan(ndev); 14227b36b6e0Skxie@chelsio.com /* SMT two entries per row */ 14237b36b6e0Skxie@chelsio.com csk->smac_idx = ((cxgb4_port_viid(ndev) & 0x7F)) << 1; 14247b36b6e0Skxie@chelsio.com step = lldi->ntxq / lldi->nchan; 14257b36b6e0Skxie@chelsio.com csk->txq_idx = cxgb4_port_idx(ndev) * step; 14267b36b6e0Skxie@chelsio.com step = lldi->nrxq / lldi->nchan; 14277b36b6e0Skxie@chelsio.com csk->rss_qid = lldi->rxq_ids[cxgb4_port_idx(ndev) * step]; 1428759a0cc5SAnish Bhatt csk->wr_cred = lldi->wr_cred - 1429759a0cc5SAnish Bhatt DIV_ROUND_UP(sizeof(struct cpl_abort_req), 16); 1430759a0cc5SAnish Bhatt csk->wr_max_cred = csk->wr_cred; 14317b36b6e0Skxie@chelsio.com csk->wr_una_cred = 0; 14327b36b6e0Skxie@chelsio.com cxgbi_sock_reset_wr_list(csk); 14337b36b6e0Skxie@chelsio.com csk->err = 0; 14347b36b6e0Skxie@chelsio.com 1435759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u,%u,%u, mtu %u,%u, smac %u.\n", 1436759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), csk, csk->state, 1437759a0cc5SAnish Bhatt csk->flags, csk->tx_chan, csk->txq_idx, csk->rss_qid, 1438759a0cc5SAnish Bhatt csk->mtu, csk->mss_idx, csk->smac_idx); 1439759a0cc5SAnish Bhatt 1440759a0cc5SAnish Bhatt /* must wait for either a act_open_rpl or act_open_establish */ 1441759a0cc5SAnish Bhatt try_module_get(THIS_MODULE); 14427b36b6e0Skxie@chelsio.com cxgbi_sock_set_state(csk, CTP_ACTIVE_OPEN); 1443759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 14447b36b6e0Skxie@chelsio.com send_act_open_req(csk, skb, csk->l2t); 1445f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1446759a0cc5SAnish Bhatt else 1447759a0cc5SAnish Bhatt send_act_open_req6(csk, skb, csk->l2t); 1448f42bb57cSAnish Bhatt #endif 1449c4737377SDavid S. Miller neigh_release(n); 1450759a0cc5SAnish Bhatt 14517b36b6e0Skxie@chelsio.com return 0; 14527b36b6e0Skxie@chelsio.com 14537b36b6e0Skxie@chelsio.com rel_resource: 1454c4737377SDavid S. Miller if (n) 1455c4737377SDavid S. Miller neigh_release(n); 14567b36b6e0Skxie@chelsio.com if (skb) 14577b36b6e0Skxie@chelsio.com __kfree_skb(skb); 14587b36b6e0Skxie@chelsio.com return -EINVAL; 14597b36b6e0Skxie@chelsio.com } 14607b36b6e0Skxie@chelsio.com 14617b36b6e0Skxie@chelsio.com cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = { 14627b36b6e0Skxie@chelsio.com [CPL_ACT_ESTABLISH] = do_act_establish, 14637b36b6e0Skxie@chelsio.com [CPL_ACT_OPEN_RPL] = do_act_open_rpl, 14647b36b6e0Skxie@chelsio.com [CPL_PEER_CLOSE] = do_peer_close, 14657b36b6e0Skxie@chelsio.com [CPL_ABORT_REQ_RSS] = do_abort_req_rss, 14667b36b6e0Skxie@chelsio.com [CPL_ABORT_RPL_RSS] = do_abort_rpl_rss, 14677b36b6e0Skxie@chelsio.com [CPL_CLOSE_CON_RPL] = do_close_con_rpl, 14687b36b6e0Skxie@chelsio.com [CPL_FW4_ACK] = do_fw4_ack, 14697b36b6e0Skxie@chelsio.com [CPL_ISCSI_HDR] = do_rx_iscsi_hdr, 14703bd3e8bfSKaren Xie [CPL_ISCSI_DATA] = do_rx_iscsi_hdr, 14717b36b6e0Skxie@chelsio.com [CPL_SET_TCB_RPL] = do_set_tcb_rpl, 14727b36b6e0Skxie@chelsio.com [CPL_RX_DATA_DDP] = do_rx_data_ddp, 14733bd3e8bfSKaren Xie [CPL_RX_ISCSI_DDP] = do_rx_data_ddp, 1474f7bcd2e1SKaren Xie [CPL_RX_DATA] = do_rx_data, 14757b36b6e0Skxie@chelsio.com }; 14767b36b6e0Skxie@chelsio.com 14777b36b6e0Skxie@chelsio.com int cxgb4i_ofld_init(struct cxgbi_device *cdev) 14787b36b6e0Skxie@chelsio.com { 14797b36b6e0Skxie@chelsio.com int rc; 14807b36b6e0Skxie@chelsio.com 14817b36b6e0Skxie@chelsio.com if (cxgb4i_max_connect > CXGB4I_MAX_CONN) 14827b36b6e0Skxie@chelsio.com cxgb4i_max_connect = CXGB4I_MAX_CONN; 14837b36b6e0Skxie@chelsio.com 14847b36b6e0Skxie@chelsio.com rc = cxgbi_device_portmap_create(cdev, cxgb4i_sport_base, 14857b36b6e0Skxie@chelsio.com cxgb4i_max_connect); 14867b36b6e0Skxie@chelsio.com if (rc < 0) 14877b36b6e0Skxie@chelsio.com return rc; 14887b36b6e0Skxie@chelsio.com 14897b36b6e0Skxie@chelsio.com cdev->csk_release_offload_resources = release_offload_resources; 14907b36b6e0Skxie@chelsio.com cdev->csk_push_tx_frames = push_tx_frames; 14917b36b6e0Skxie@chelsio.com cdev->csk_send_abort_req = send_abort_req; 14927b36b6e0Skxie@chelsio.com cdev->csk_send_close_req = send_close_req; 14937b36b6e0Skxie@chelsio.com cdev->csk_send_rx_credits = send_rx_credits; 14947b36b6e0Skxie@chelsio.com cdev->csk_alloc_cpls = alloc_cpls; 14957b36b6e0Skxie@chelsio.com cdev->csk_init_act_open = init_act_open; 14967b36b6e0Skxie@chelsio.com 14977b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, offload up, added.\n", cdev); 14987b36b6e0Skxie@chelsio.com return 0; 14997b36b6e0Skxie@chelsio.com } 15007b36b6e0Skxie@chelsio.com 15017b36b6e0Skxie@chelsio.com /* 15027b36b6e0Skxie@chelsio.com * functions to program the pagepod in h/w 15037b36b6e0Skxie@chelsio.com */ 1504e27d6169Skxie@chelsio.com #define ULPMEM_IDATA_MAX_NPPODS 4 /* 256/PPOD_SIZE */ 15053bd3e8bfSKaren Xie static inline void ulp_mem_io_set_hdr(struct cxgb4_lld_info *lldi, 15063bd3e8bfSKaren Xie struct ulp_mem_io *req, 1507e27d6169Skxie@chelsio.com unsigned int wr_len, unsigned int dlen, 1508e27d6169Skxie@chelsio.com unsigned int pm_addr) 15097b36b6e0Skxie@chelsio.com { 1510e27d6169Skxie@chelsio.com struct ulptx_idata *idata = (struct ulptx_idata *)(req + 1); 15117b36b6e0Skxie@chelsio.com 15127b36b6e0Skxie@chelsio.com INIT_ULPTX_WR(req, wr_len, 0, 0); 15133bd3e8bfSKaren Xie if (is_t4(lldi->adapter_type)) 1514d7990b0cSAnish Bhatt req->cmd = htonl(ULPTX_CMD_V(ULP_TX_MEM_WRITE) | 1515d7990b0cSAnish Bhatt (ULP_MEMIO_ORDER_F)); 15163bd3e8bfSKaren Xie else 1517d7990b0cSAnish Bhatt req->cmd = htonl(ULPTX_CMD_V(ULP_TX_MEM_WRITE) | 1518d7990b0cSAnish Bhatt (T5_ULP_MEMIO_IMM_F)); 1519d7990b0cSAnish Bhatt req->dlen = htonl(ULP_MEMIO_DATA_LEN_V(dlen >> 5)); 1520d7990b0cSAnish Bhatt req->lock_addr = htonl(ULP_MEMIO_ADDR_V(pm_addr >> 5)); 15217b36b6e0Skxie@chelsio.com req->len16 = htonl(DIV_ROUND_UP(wr_len - sizeof(req->wr), 16)); 1522e27d6169Skxie@chelsio.com 1523d7990b0cSAnish Bhatt idata->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_IMM)); 1524e27d6169Skxie@chelsio.com idata->len = htonl(dlen); 15257b36b6e0Skxie@chelsio.com } 15267b36b6e0Skxie@chelsio.com 1527e27d6169Skxie@chelsio.com static int ddp_ppod_write_idata(struct cxgbi_device *cdev, unsigned int port_id, 15287b36b6e0Skxie@chelsio.com struct cxgbi_pagepod_hdr *hdr, unsigned int idx, 15297b36b6e0Skxie@chelsio.com unsigned int npods, 15307b36b6e0Skxie@chelsio.com struct cxgbi_gather_list *gl, 15317b36b6e0Skxie@chelsio.com unsigned int gl_pidx) 15327b36b6e0Skxie@chelsio.com { 15337b36b6e0Skxie@chelsio.com struct cxgbi_ddp_info *ddp = cdev->ddp; 15343bd3e8bfSKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 15357b36b6e0Skxie@chelsio.com struct sk_buff *skb; 15367b36b6e0Skxie@chelsio.com struct ulp_mem_io *req; 1537e27d6169Skxie@chelsio.com struct ulptx_idata *idata; 15387b36b6e0Skxie@chelsio.com struct cxgbi_pagepod *ppod; 1539e27d6169Skxie@chelsio.com unsigned int pm_addr = idx * PPOD_SIZE + ddp->llimit; 1540e27d6169Skxie@chelsio.com unsigned int dlen = PPOD_SIZE * npods; 1541e27d6169Skxie@chelsio.com unsigned int wr_len = roundup(sizeof(struct ulp_mem_io) + 1542e27d6169Skxie@chelsio.com sizeof(struct ulptx_idata) + dlen, 16); 15437b36b6e0Skxie@chelsio.com unsigned int i; 15447b36b6e0Skxie@chelsio.com 1545e27d6169Skxie@chelsio.com skb = alloc_wr(wr_len, 0, GFP_ATOMIC); 15467b36b6e0Skxie@chelsio.com if (!skb) { 15477b36b6e0Skxie@chelsio.com pr_err("cdev 0x%p, idx %u, npods %u, OOM.\n", 15487b36b6e0Skxie@chelsio.com cdev, idx, npods); 15497b36b6e0Skxie@chelsio.com return -ENOMEM; 15507b36b6e0Skxie@chelsio.com } 15517b36b6e0Skxie@chelsio.com req = (struct ulp_mem_io *)skb->head; 15522126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0); 15537b36b6e0Skxie@chelsio.com 15543bd3e8bfSKaren Xie ulp_mem_io_set_hdr(lldi, req, wr_len, dlen, pm_addr); 1555e27d6169Skxie@chelsio.com idata = (struct ulptx_idata *)(req + 1); 1556e27d6169Skxie@chelsio.com ppod = (struct cxgbi_pagepod *)(idata + 1); 15577b36b6e0Skxie@chelsio.com 15587b36b6e0Skxie@chelsio.com for (i = 0; i < npods; i++, ppod++, gl_pidx += PPOD_PAGES_MAX) { 15597b36b6e0Skxie@chelsio.com if (!hdr && !gl) 15607b36b6e0Skxie@chelsio.com cxgbi_ddp_ppod_clear(ppod); 15617b36b6e0Skxie@chelsio.com else 15627b36b6e0Skxie@chelsio.com cxgbi_ddp_ppod_set(ppod, hdr, gl, gl_pidx); 15637b36b6e0Skxie@chelsio.com } 15647b36b6e0Skxie@chelsio.com 15657b36b6e0Skxie@chelsio.com cxgb4_ofld_send(cdev->ports[port_id], skb); 15667b36b6e0Skxie@chelsio.com return 0; 15677b36b6e0Skxie@chelsio.com } 15687b36b6e0Skxie@chelsio.com 15697b36b6e0Skxie@chelsio.com static int ddp_set_map(struct cxgbi_sock *csk, struct cxgbi_pagepod_hdr *hdr, 15707b36b6e0Skxie@chelsio.com unsigned int idx, unsigned int npods, 15717b36b6e0Skxie@chelsio.com struct cxgbi_gather_list *gl) 15727b36b6e0Skxie@chelsio.com { 15737b36b6e0Skxie@chelsio.com unsigned int i, cnt; 15747b36b6e0Skxie@chelsio.com int err = 0; 15757b36b6e0Skxie@chelsio.com 15767b36b6e0Skxie@chelsio.com for (i = 0; i < npods; i += cnt, idx += cnt) { 15777b36b6e0Skxie@chelsio.com cnt = npods - i; 1578e27d6169Skxie@chelsio.com if (cnt > ULPMEM_IDATA_MAX_NPPODS) 1579e27d6169Skxie@chelsio.com cnt = ULPMEM_IDATA_MAX_NPPODS; 1580e27d6169Skxie@chelsio.com err = ddp_ppod_write_idata(csk->cdev, csk->port_id, hdr, 15817b36b6e0Skxie@chelsio.com idx, cnt, gl, 4 * i); 15827b36b6e0Skxie@chelsio.com if (err < 0) 15837b36b6e0Skxie@chelsio.com break; 15847b36b6e0Skxie@chelsio.com } 15857b36b6e0Skxie@chelsio.com return err; 15867b36b6e0Skxie@chelsio.com } 15877b36b6e0Skxie@chelsio.com 15887b36b6e0Skxie@chelsio.com static void ddp_clear_map(struct cxgbi_hba *chba, unsigned int tag, 15897b36b6e0Skxie@chelsio.com unsigned int idx, unsigned int npods) 15907b36b6e0Skxie@chelsio.com { 15917b36b6e0Skxie@chelsio.com unsigned int i, cnt; 15927b36b6e0Skxie@chelsio.com int err; 15937b36b6e0Skxie@chelsio.com 15947b36b6e0Skxie@chelsio.com for (i = 0; i < npods; i += cnt, idx += cnt) { 15957b36b6e0Skxie@chelsio.com cnt = npods - i; 1596e27d6169Skxie@chelsio.com if (cnt > ULPMEM_IDATA_MAX_NPPODS) 1597e27d6169Skxie@chelsio.com cnt = ULPMEM_IDATA_MAX_NPPODS; 1598e27d6169Skxie@chelsio.com err = ddp_ppod_write_idata(chba->cdev, chba->port_id, NULL, 15997b36b6e0Skxie@chelsio.com idx, cnt, NULL, 0); 16007b36b6e0Skxie@chelsio.com if (err < 0) 16017b36b6e0Skxie@chelsio.com break; 16027b36b6e0Skxie@chelsio.com } 16037b36b6e0Skxie@chelsio.com } 16047b36b6e0Skxie@chelsio.com 16057b36b6e0Skxie@chelsio.com static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk, unsigned int tid, 16067b36b6e0Skxie@chelsio.com int pg_idx, bool reply) 16077b36b6e0Skxie@chelsio.com { 16087b36b6e0Skxie@chelsio.com struct sk_buff *skb; 16097b36b6e0Skxie@chelsio.com struct cpl_set_tcb_field *req; 16107b36b6e0Skxie@chelsio.com 1611e27d6169Skxie@chelsio.com if (!pg_idx || pg_idx >= DDP_PGIDX_MAX) 16127b36b6e0Skxie@chelsio.com return 0; 16137b36b6e0Skxie@chelsio.com 161424d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL); 16157b36b6e0Skxie@chelsio.com if (!skb) 16167b36b6e0Skxie@chelsio.com return -ENOMEM; 16177b36b6e0Skxie@chelsio.com 1618e27d6169Skxie@chelsio.com /* set up ulp page size */ 16197b36b6e0Skxie@chelsio.com req = (struct cpl_set_tcb_field *)skb->head; 16207b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 16217b36b6e0Skxie@chelsio.com OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, csk->tid)); 16227b36b6e0Skxie@chelsio.com req->reply_ctrl = htons(NO_REPLY(reply) | QUEUENO(csk->rss_qid)); 1623e27d6169Skxie@chelsio.com req->word_cookie = htons(0); 1624e27d6169Skxie@chelsio.com req->mask = cpu_to_be64(0x3 << 8); 1625e27d6169Skxie@chelsio.com req->val = cpu_to_be64(pg_idx << 8); 16267b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id); 16277b36b6e0Skxie@chelsio.com 16287b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 16297b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, pg_idx %u.\n", csk, csk->tid, pg_idx); 16307b36b6e0Skxie@chelsio.com 16317b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 16327b36b6e0Skxie@chelsio.com return 0; 16337b36b6e0Skxie@chelsio.com } 16347b36b6e0Skxie@chelsio.com 16357b36b6e0Skxie@chelsio.com static int ddp_setup_conn_digest(struct cxgbi_sock *csk, unsigned int tid, 16367b36b6e0Skxie@chelsio.com int hcrc, int dcrc, int reply) 16377b36b6e0Skxie@chelsio.com { 16387b36b6e0Skxie@chelsio.com struct sk_buff *skb; 16397b36b6e0Skxie@chelsio.com struct cpl_set_tcb_field *req; 16407b36b6e0Skxie@chelsio.com 1641e27d6169Skxie@chelsio.com if (!hcrc && !dcrc) 1642e27d6169Skxie@chelsio.com return 0; 16437b36b6e0Skxie@chelsio.com 164424d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL); 16457b36b6e0Skxie@chelsio.com if (!skb) 16467b36b6e0Skxie@chelsio.com return -ENOMEM; 16477b36b6e0Skxie@chelsio.com 16487b36b6e0Skxie@chelsio.com csk->hcrc_len = (hcrc ? 4 : 0); 16497b36b6e0Skxie@chelsio.com csk->dcrc_len = (dcrc ? 4 : 0); 1650e27d6169Skxie@chelsio.com /* set up ulp submode */ 16517b36b6e0Skxie@chelsio.com req = (struct cpl_set_tcb_field *)skb->head; 16527b36b6e0Skxie@chelsio.com INIT_TP_WR(req, tid); 16537b36b6e0Skxie@chelsio.com OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid)); 16547b36b6e0Skxie@chelsio.com req->reply_ctrl = htons(NO_REPLY(reply) | QUEUENO(csk->rss_qid)); 1655e27d6169Skxie@chelsio.com req->word_cookie = htons(0); 1656e27d6169Skxie@chelsio.com req->mask = cpu_to_be64(0x3 << 4); 1657e27d6169Skxie@chelsio.com req->val = cpu_to_be64(((hcrc ? ULP_CRC_HEADER : 0) | 1658e27d6169Skxie@chelsio.com (dcrc ? ULP_CRC_DATA : 0)) << 4); 16597b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id); 16607b36b6e0Skxie@chelsio.com 16617b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 16627b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, crc %d,%d.\n", csk, csk->tid, hcrc, dcrc); 16637b36b6e0Skxie@chelsio.com 16647b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 16657b36b6e0Skxie@chelsio.com return 0; 16667b36b6e0Skxie@chelsio.com } 16677b36b6e0Skxie@chelsio.com 16687b36b6e0Skxie@chelsio.com static int cxgb4i_ddp_init(struct cxgbi_device *cdev) 16697b36b6e0Skxie@chelsio.com { 16707b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 16717b36b6e0Skxie@chelsio.com struct cxgbi_ddp_info *ddp = cdev->ddp; 16727b36b6e0Skxie@chelsio.com unsigned int tagmask, pgsz_factor[4]; 16737b36b6e0Skxie@chelsio.com int err; 16747b36b6e0Skxie@chelsio.com 16757b36b6e0Skxie@chelsio.com if (ddp) { 16767b36b6e0Skxie@chelsio.com kref_get(&ddp->refcnt); 16777b36b6e0Skxie@chelsio.com pr_warn("cdev 0x%p, ddp 0x%p already set up.\n", 16787b36b6e0Skxie@chelsio.com cdev, cdev->ddp); 16797b36b6e0Skxie@chelsio.com return -EALREADY; 16807b36b6e0Skxie@chelsio.com } 16817b36b6e0Skxie@chelsio.com 16827b36b6e0Skxie@chelsio.com err = cxgbi_ddp_init(cdev, lldi->vr->iscsi.start, 16837b36b6e0Skxie@chelsio.com lldi->vr->iscsi.start + lldi->vr->iscsi.size - 1, 16847b36b6e0Skxie@chelsio.com lldi->iscsi_iolen, lldi->iscsi_iolen); 16857b36b6e0Skxie@chelsio.com if (err < 0) 16867b36b6e0Skxie@chelsio.com return err; 16877b36b6e0Skxie@chelsio.com 16887b36b6e0Skxie@chelsio.com ddp = cdev->ddp; 16897b36b6e0Skxie@chelsio.com 16907b36b6e0Skxie@chelsio.com tagmask = ddp->idx_mask << PPOD_IDX_SHIFT; 16917b36b6e0Skxie@chelsio.com cxgbi_ddp_page_size_factor(pgsz_factor); 16927b36b6e0Skxie@chelsio.com cxgb4_iscsi_init(lldi->ports[0], tagmask, pgsz_factor); 16937b36b6e0Skxie@chelsio.com 16947b36b6e0Skxie@chelsio.com cdev->csk_ddp_setup_digest = ddp_setup_conn_digest; 16957b36b6e0Skxie@chelsio.com cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx; 16967b36b6e0Skxie@chelsio.com cdev->csk_ddp_set = ddp_set_map; 16977b36b6e0Skxie@chelsio.com cdev->csk_ddp_clear = ddp_clear_map; 16987b36b6e0Skxie@chelsio.com 16997b36b6e0Skxie@chelsio.com pr_info("cxgb4i 0x%p tag: sw %u, rsvd %u,%u, mask 0x%x.\n", 17007b36b6e0Skxie@chelsio.com cdev, cdev->tag_format.sw_bits, cdev->tag_format.rsvd_bits, 17017b36b6e0Skxie@chelsio.com cdev->tag_format.rsvd_shift, cdev->tag_format.rsvd_mask); 17027b36b6e0Skxie@chelsio.com pr_info("cxgb4i 0x%p, nppods %u, bits %u, mask 0x%x,0x%x pkt %u/%u, " 17037b36b6e0Skxie@chelsio.com " %u/%u.\n", 17047b36b6e0Skxie@chelsio.com cdev, ddp->nppods, ddp->idx_bits, ddp->idx_mask, 17057b36b6e0Skxie@chelsio.com ddp->rsvd_tag_mask, ddp->max_txsz, lldi->iscsi_iolen, 17067b36b6e0Skxie@chelsio.com ddp->max_rxsz, lldi->iscsi_iolen); 17077b36b6e0Skxie@chelsio.com pr_info("cxgb4i 0x%p max payload size: %u/%u, %u/%u.\n", 17087b36b6e0Skxie@chelsio.com cdev, cdev->tx_max_size, ddp->max_txsz, cdev->rx_max_size, 17097b36b6e0Skxie@chelsio.com ddp->max_rxsz); 17107b36b6e0Skxie@chelsio.com return 0; 17117b36b6e0Skxie@chelsio.com } 17127b36b6e0Skxie@chelsio.com 17137b36b6e0Skxie@chelsio.com static void *t4_uld_add(const struct cxgb4_lld_info *lldi) 17147b36b6e0Skxie@chelsio.com { 17157b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev; 17167b36b6e0Skxie@chelsio.com struct port_info *pi; 17177b36b6e0Skxie@chelsio.com int i, rc; 17187b36b6e0Skxie@chelsio.com 17197b36b6e0Skxie@chelsio.com cdev = cxgbi_device_register(sizeof(*lldi), lldi->nports); 17207b36b6e0Skxie@chelsio.com if (!cdev) { 17217b36b6e0Skxie@chelsio.com pr_info("t4 device 0x%p, register failed.\n", lldi); 17227b36b6e0Skxie@chelsio.com return NULL; 17237b36b6e0Skxie@chelsio.com } 17247b36b6e0Skxie@chelsio.com pr_info("0x%p,0x%x, ports %u,%s, chan %u, q %u,%u, wr %u.\n", 17257b36b6e0Skxie@chelsio.com cdev, lldi->adapter_type, lldi->nports, 17267b36b6e0Skxie@chelsio.com lldi->ports[0]->name, lldi->nchan, lldi->ntxq, 17277b36b6e0Skxie@chelsio.com lldi->nrxq, lldi->wr_cred); 17287b36b6e0Skxie@chelsio.com for (i = 0; i < lldi->nrxq; i++) 17297b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_DEV, 17307b36b6e0Skxie@chelsio.com "t4 0x%p, rxq id #%d: %u.\n", 17317b36b6e0Skxie@chelsio.com cdev, i, lldi->rxq_ids[i]); 17327b36b6e0Skxie@chelsio.com 17337b36b6e0Skxie@chelsio.com memcpy(cxgbi_cdev_priv(cdev), lldi, sizeof(*lldi)); 17347b36b6e0Skxie@chelsio.com cdev->flags = CXGBI_FLAG_DEV_T4; 17357b36b6e0Skxie@chelsio.com cdev->pdev = lldi->pdev; 17367b36b6e0Skxie@chelsio.com cdev->ports = lldi->ports; 17377b36b6e0Skxie@chelsio.com cdev->nports = lldi->nports; 17387b36b6e0Skxie@chelsio.com cdev->mtus = lldi->mtus; 17397b36b6e0Skxie@chelsio.com cdev->nmtus = NMTUS; 17407b36b6e0Skxie@chelsio.com cdev->snd_win = cxgb4i_snd_win; 17417b36b6e0Skxie@chelsio.com cdev->rcv_win = cxgb4i_rcv_win; 17427b36b6e0Skxie@chelsio.com cdev->rx_credit_thres = cxgb4i_rx_credit_thres; 17437b36b6e0Skxie@chelsio.com cdev->skb_tx_rsvd = CXGB4I_TX_HEADER_LEN; 17447b36b6e0Skxie@chelsio.com cdev->skb_rx_extra = sizeof(struct cpl_iscsi_hdr); 17457b36b6e0Skxie@chelsio.com cdev->itp = &cxgb4i_iscsi_transport; 17467b36b6e0Skxie@chelsio.com 1747d7990b0cSAnish Bhatt cdev->pfvf = FW_VIID_PFN_G(cxgb4_port_viid(lldi->ports[0])) 1748d7990b0cSAnish Bhatt << FW_VIID_PFN_S; 1749e27d6169Skxie@chelsio.com pr_info("cdev 0x%p,%s, pfvf %u.\n", 1750e27d6169Skxie@chelsio.com cdev, lldi->ports[0]->name, cdev->pfvf); 1751e27d6169Skxie@chelsio.com 17527b36b6e0Skxie@chelsio.com rc = cxgb4i_ddp_init(cdev); 17537b36b6e0Skxie@chelsio.com if (rc) { 17547b36b6e0Skxie@chelsio.com pr_info("t4 0x%p ddp init failed.\n", cdev); 17557b36b6e0Skxie@chelsio.com goto err_out; 17567b36b6e0Skxie@chelsio.com } 17577b36b6e0Skxie@chelsio.com rc = cxgb4i_ofld_init(cdev); 17587b36b6e0Skxie@chelsio.com if (rc) { 17597b36b6e0Skxie@chelsio.com pr_info("t4 0x%p ofld init failed.\n", cdev); 17607b36b6e0Skxie@chelsio.com goto err_out; 17617b36b6e0Skxie@chelsio.com } 17627b36b6e0Skxie@chelsio.com 17637b36b6e0Skxie@chelsio.com rc = cxgbi_hbas_add(cdev, CXGB4I_MAX_LUN, CXGBI_MAX_CONN, 17647b36b6e0Skxie@chelsio.com &cxgb4i_host_template, cxgb4i_stt); 17657b36b6e0Skxie@chelsio.com if (rc) 17667b36b6e0Skxie@chelsio.com goto err_out; 17677b36b6e0Skxie@chelsio.com 17687b36b6e0Skxie@chelsio.com for (i = 0; i < cdev->nports; i++) { 17697b36b6e0Skxie@chelsio.com pi = netdev_priv(lldi->ports[i]); 17707b36b6e0Skxie@chelsio.com cdev->hbas[i]->port_id = pi->port_id; 17717b36b6e0Skxie@chelsio.com } 17727b36b6e0Skxie@chelsio.com return cdev; 17737b36b6e0Skxie@chelsio.com 17747b36b6e0Skxie@chelsio.com err_out: 17757b36b6e0Skxie@chelsio.com cxgbi_device_unregister(cdev); 17767b36b6e0Skxie@chelsio.com return ERR_PTR(-ENOMEM); 17777b36b6e0Skxie@chelsio.com } 17787b36b6e0Skxie@chelsio.com 17797b36b6e0Skxie@chelsio.com #define RX_PULL_LEN 128 17807b36b6e0Skxie@chelsio.com static int t4_uld_rx_handler(void *handle, const __be64 *rsp, 17817b36b6e0Skxie@chelsio.com const struct pkt_gl *pgl) 17827b36b6e0Skxie@chelsio.com { 17837b36b6e0Skxie@chelsio.com const struct cpl_act_establish *rpl; 17847b36b6e0Skxie@chelsio.com struct sk_buff *skb; 17857b36b6e0Skxie@chelsio.com unsigned int opc; 17867b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = handle; 17877b36b6e0Skxie@chelsio.com 17887b36b6e0Skxie@chelsio.com if (pgl == NULL) { 17897b36b6e0Skxie@chelsio.com unsigned int len = 64 - sizeof(struct rsp_ctrl) - 8; 17907b36b6e0Skxie@chelsio.com 179124d3f95aSkxie@chelsio.com skb = alloc_wr(len, 0, GFP_ATOMIC); 17927b36b6e0Skxie@chelsio.com if (!skb) 17937b36b6e0Skxie@chelsio.com goto nomem; 17947b36b6e0Skxie@chelsio.com skb_copy_to_linear_data(skb, &rsp[1], len); 17957b36b6e0Skxie@chelsio.com } else { 17967b36b6e0Skxie@chelsio.com if (unlikely(*(u8 *)rsp != *(u8 *)pgl->va)) { 17977b36b6e0Skxie@chelsio.com pr_info("? FL 0x%p,RSS%#llx,FL %#llx,len %u.\n", 17987b36b6e0Skxie@chelsio.com pgl->va, be64_to_cpu(*rsp), 17997b36b6e0Skxie@chelsio.com be64_to_cpu(*(u64 *)pgl->va), 18007b36b6e0Skxie@chelsio.com pgl->tot_len); 18017b36b6e0Skxie@chelsio.com return 0; 18027b36b6e0Skxie@chelsio.com } 18037b36b6e0Skxie@chelsio.com skb = cxgb4_pktgl_to_skb(pgl, RX_PULL_LEN, RX_PULL_LEN); 18047b36b6e0Skxie@chelsio.com if (unlikely(!skb)) 18057b36b6e0Skxie@chelsio.com goto nomem; 18067b36b6e0Skxie@chelsio.com } 18077b36b6e0Skxie@chelsio.com 18087b36b6e0Skxie@chelsio.com rpl = (struct cpl_act_establish *)skb->data; 18097b36b6e0Skxie@chelsio.com opc = rpl->ot.opcode; 18107b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE, 18117b36b6e0Skxie@chelsio.com "cdev %p, opcode 0x%x(0x%x,0x%x), skb %p.\n", 18127b36b6e0Skxie@chelsio.com cdev, opc, rpl->ot.opcode_tid, ntohl(rpl->ot.opcode_tid), skb); 18137b36b6e0Skxie@chelsio.com if (cxgb4i_cplhandlers[opc]) 18147b36b6e0Skxie@chelsio.com cxgb4i_cplhandlers[opc](cdev, skb); 18157b36b6e0Skxie@chelsio.com else { 18167b36b6e0Skxie@chelsio.com pr_err("No handler for opcode 0x%x.\n", opc); 18177b36b6e0Skxie@chelsio.com __kfree_skb(skb); 18187b36b6e0Skxie@chelsio.com } 18197b36b6e0Skxie@chelsio.com return 0; 18207b36b6e0Skxie@chelsio.com nomem: 18217b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE, "OOM bailing out.\n"); 18227b36b6e0Skxie@chelsio.com return 1; 18237b36b6e0Skxie@chelsio.com } 18247b36b6e0Skxie@chelsio.com 18257b36b6e0Skxie@chelsio.com static int t4_uld_state_change(void *handle, enum cxgb4_state state) 18267b36b6e0Skxie@chelsio.com { 18277b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = handle; 18287b36b6e0Skxie@chelsio.com 18297b36b6e0Skxie@chelsio.com switch (state) { 18307b36b6e0Skxie@chelsio.com case CXGB4_STATE_UP: 18317b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, UP.\n", cdev); 18327b36b6e0Skxie@chelsio.com break; 18337b36b6e0Skxie@chelsio.com case CXGB4_STATE_START_RECOVERY: 18347b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, RECOVERY.\n", cdev); 18357b36b6e0Skxie@chelsio.com /* close all connections */ 18367b36b6e0Skxie@chelsio.com break; 18377b36b6e0Skxie@chelsio.com case CXGB4_STATE_DOWN: 18387b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, DOWN.\n", cdev); 18397b36b6e0Skxie@chelsio.com break; 18407b36b6e0Skxie@chelsio.com case CXGB4_STATE_DETACH: 18417b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, DETACH.\n", cdev); 1842c3b331a3SThadeu Lima de Souza Cascardo cxgbi_device_unregister(cdev); 18437b36b6e0Skxie@chelsio.com break; 18447b36b6e0Skxie@chelsio.com default: 18457b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, unknown state %d.\n", cdev, state); 18467b36b6e0Skxie@chelsio.com break; 18477b36b6e0Skxie@chelsio.com } 18487b36b6e0Skxie@chelsio.com return 0; 18497b36b6e0Skxie@chelsio.com } 18507b36b6e0Skxie@chelsio.com 18517b36b6e0Skxie@chelsio.com static int __init cxgb4i_init_module(void) 18527b36b6e0Skxie@chelsio.com { 18537b36b6e0Skxie@chelsio.com int rc; 18547b36b6e0Skxie@chelsio.com 18557b36b6e0Skxie@chelsio.com printk(KERN_INFO "%s", version); 18567b36b6e0Skxie@chelsio.com 18577b36b6e0Skxie@chelsio.com rc = cxgbi_iscsi_init(&cxgb4i_iscsi_transport, &cxgb4i_stt); 18587b36b6e0Skxie@chelsio.com if (rc < 0) 18597b36b6e0Skxie@chelsio.com return rc; 18607b36b6e0Skxie@chelsio.com cxgb4_register_uld(CXGB4_ULD_ISCSI, &cxgb4i_uld_info); 1861759a0cc5SAnish Bhatt 18627b36b6e0Skxie@chelsio.com return 0; 18637b36b6e0Skxie@chelsio.com } 18647b36b6e0Skxie@chelsio.com 18657b36b6e0Skxie@chelsio.com static void __exit cxgb4i_exit_module(void) 18667b36b6e0Skxie@chelsio.com { 18677b36b6e0Skxie@chelsio.com cxgb4_unregister_uld(CXGB4_ULD_ISCSI); 18687b36b6e0Skxie@chelsio.com cxgbi_device_unregister_all(CXGBI_FLAG_DEV_T4); 18697b36b6e0Skxie@chelsio.com cxgbi_iscsi_cleanup(&cxgb4i_iscsi_transport, &cxgb4i_stt); 18707b36b6e0Skxie@chelsio.com } 18717b36b6e0Skxie@chelsio.com 18727b36b6e0Skxie@chelsio.com module_init(cxgb4i_init_module); 18737b36b6e0Skxie@chelsio.com module_exit(cxgb4i_exit_module); 1874