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); 787b36b6e0Skxie@chelsio.com 797b36b6e0Skxie@chelsio.com static const struct cxgb4_uld_info cxgb4i_uld_info = { 807b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 817b36b6e0Skxie@chelsio.com .add = t4_uld_add, 827b36b6e0Skxie@chelsio.com .rx_handler = t4_uld_rx_handler, 837b36b6e0Skxie@chelsio.com .state_change = t4_uld_state_change, 847b36b6e0Skxie@chelsio.com }; 857b36b6e0Skxie@chelsio.com 867b36b6e0Skxie@chelsio.com static struct scsi_host_template cxgb4i_host_template = { 877b36b6e0Skxie@chelsio.com .module = THIS_MODULE, 887b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 897b36b6e0Skxie@chelsio.com .proc_name = DRV_MODULE_NAME, 907b36b6e0Skxie@chelsio.com .can_queue = CXGB4I_SCSI_HOST_QDEPTH, 917b36b6e0Skxie@chelsio.com .queuecommand = iscsi_queuecommand, 92db5ed4dfSChristoph Hellwig .change_queue_depth = scsi_change_queue_depth, 937b36b6e0Skxie@chelsio.com .sg_tablesize = SG_ALL, 947b36b6e0Skxie@chelsio.com .max_sectors = 0xFFFF, 957b36b6e0Skxie@chelsio.com .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, 967b36b6e0Skxie@chelsio.com .eh_abort_handler = iscsi_eh_abort, 977b36b6e0Skxie@chelsio.com .eh_device_reset_handler = iscsi_eh_device_reset, 987b36b6e0Skxie@chelsio.com .eh_target_reset_handler = iscsi_eh_recover_target, 997b36b6e0Skxie@chelsio.com .target_alloc = iscsi_target_alloc, 1007b36b6e0Skxie@chelsio.com .use_clustering = DISABLE_CLUSTERING, 1017b36b6e0Skxie@chelsio.com .this_id = -1, 102c40ecc12SChristoph Hellwig .track_queue_depth = 1, 1037b36b6e0Skxie@chelsio.com }; 1047b36b6e0Skxie@chelsio.com 1057b36b6e0Skxie@chelsio.com static struct iscsi_transport cxgb4i_iscsi_transport = { 1067b36b6e0Skxie@chelsio.com .owner = THIS_MODULE, 1077b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 1087b36b6e0Skxie@chelsio.com .caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST | 1097b36b6e0Skxie@chelsio.com CAP_DATADGST | CAP_DIGEST_OFFLOAD | 110fdafd4dfSMike Christie CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO, 1113128c6c7SMike Christie .attr_is_visible = cxgbi_attr_is_visible, 1127b36b6e0Skxie@chelsio.com .get_host_param = cxgbi_get_host_param, 1137b36b6e0Skxie@chelsio.com .set_host_param = cxgbi_set_host_param, 1147b36b6e0Skxie@chelsio.com /* session management */ 1157b36b6e0Skxie@chelsio.com .create_session = cxgbi_create_session, 1167b36b6e0Skxie@chelsio.com .destroy_session = cxgbi_destroy_session, 1177b36b6e0Skxie@chelsio.com .get_session_param = iscsi_session_get_param, 1187b36b6e0Skxie@chelsio.com /* connection management */ 1197b36b6e0Skxie@chelsio.com .create_conn = cxgbi_create_conn, 1207b36b6e0Skxie@chelsio.com .bind_conn = cxgbi_bind_conn, 1217b36b6e0Skxie@chelsio.com .destroy_conn = iscsi_tcp_conn_teardown, 1227b36b6e0Skxie@chelsio.com .start_conn = iscsi_conn_start, 1237b36b6e0Skxie@chelsio.com .stop_conn = iscsi_conn_stop, 124c71b9b66SMike Christie .get_conn_param = iscsi_conn_get_param, 1257b36b6e0Skxie@chelsio.com .set_param = cxgbi_set_conn_param, 1267b36b6e0Skxie@chelsio.com .get_stats = cxgbi_get_conn_stats, 1277b36b6e0Skxie@chelsio.com /* pdu xmit req from user space */ 1287b36b6e0Skxie@chelsio.com .send_pdu = iscsi_conn_send_pdu, 1297b36b6e0Skxie@chelsio.com /* task */ 1307b36b6e0Skxie@chelsio.com .init_task = iscsi_tcp_task_init, 1317b36b6e0Skxie@chelsio.com .xmit_task = iscsi_tcp_task_xmit, 1327b36b6e0Skxie@chelsio.com .cleanup_task = cxgbi_cleanup_task, 1337b36b6e0Skxie@chelsio.com /* pdu */ 1347b36b6e0Skxie@chelsio.com .alloc_pdu = cxgbi_conn_alloc_pdu, 1357b36b6e0Skxie@chelsio.com .init_pdu = cxgbi_conn_init_pdu, 1367b36b6e0Skxie@chelsio.com .xmit_pdu = cxgbi_conn_xmit_pdu, 1377b36b6e0Skxie@chelsio.com .parse_pdu_itt = cxgbi_parse_pdu_itt, 1387b36b6e0Skxie@chelsio.com /* TCP connect/disconnect */ 139c71b9b66SMike Christie .get_ep_param = cxgbi_get_ep_param, 1407b36b6e0Skxie@chelsio.com .ep_connect = cxgbi_ep_connect, 1417b36b6e0Skxie@chelsio.com .ep_poll = cxgbi_ep_poll, 1427b36b6e0Skxie@chelsio.com .ep_disconnect = cxgbi_ep_disconnect, 1437b36b6e0Skxie@chelsio.com /* Error recovery timeout call */ 1447b36b6e0Skxie@chelsio.com .session_recovery_timedout = iscsi_session_recovery_timedout, 1457b36b6e0Skxie@chelsio.com }; 1467b36b6e0Skxie@chelsio.com 1477b36b6e0Skxie@chelsio.com static struct scsi_transport_template *cxgb4i_stt; 1487b36b6e0Skxie@chelsio.com 1497b36b6e0Skxie@chelsio.com /* 1507b36b6e0Skxie@chelsio.com * CPL (Chelsio Protocol Language) defines a message passing interface between 1517b36b6e0Skxie@chelsio.com * the host driver and Chelsio asic. 1527b36b6e0Skxie@chelsio.com * The section below implments CPLs that related to iscsi tcp connection 1537b36b6e0Skxie@chelsio.com * open/close/abort and data send/receive. 1547b36b6e0Skxie@chelsio.com */ 155759a0cc5SAnish Bhatt 1567b36b6e0Skxie@chelsio.com #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) 1577b36b6e0Skxie@chelsio.com #define RCV_BUFSIZ_MASK 0x3FFU 1587b36b6e0Skxie@chelsio.com #define MAX_IMM_TX_PKT_LEN 128 1597b36b6e0Skxie@chelsio.com 1607b36b6e0Skxie@chelsio.com static inline void set_queue(struct sk_buff *skb, unsigned int queue, 1617b36b6e0Skxie@chelsio.com const struct cxgbi_sock *csk) 1627b36b6e0Skxie@chelsio.com { 1637b36b6e0Skxie@chelsio.com skb->queue_mapping = queue; 1647b36b6e0Skxie@chelsio.com } 1657b36b6e0Skxie@chelsio.com 1667b36b6e0Skxie@chelsio.com static int push_tx_frames(struct cxgbi_sock *, int); 1677b36b6e0Skxie@chelsio.com 1687b36b6e0Skxie@chelsio.com /* 1697b36b6e0Skxie@chelsio.com * is_ofld_imm - check whether a packet can be sent as immediate data 1707b36b6e0Skxie@chelsio.com * @skb: the packet 1717b36b6e0Skxie@chelsio.com * 1727b36b6e0Skxie@chelsio.com * Returns true if a packet can be sent as an offload WR with immediate 1737b36b6e0Skxie@chelsio.com * data. We currently use the same limit as for Ethernet packets. 1747b36b6e0Skxie@chelsio.com */ 175*84944d8cSKaren Xie static inline bool is_ofld_imm(const struct sk_buff *skb) 1767b36b6e0Skxie@chelsio.com { 177*84944d8cSKaren Xie int len = skb->len; 178*84944d8cSKaren Xie 179*84944d8cSKaren Xie if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) 180*84944d8cSKaren Xie len += sizeof(struct fw_ofld_tx_data_wr); 181*84944d8cSKaren Xie 182*84944d8cSKaren Xie return len <= MAX_IMM_TX_PKT_LEN; 1837b36b6e0Skxie@chelsio.com } 1847b36b6e0Skxie@chelsio.com 1857b36b6e0Skxie@chelsio.com static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb, 1867b36b6e0Skxie@chelsio.com struct l2t_entry *e) 1877b36b6e0Skxie@chelsio.com { 1883bd3e8bfSKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 189759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 1907b36b6e0Skxie@chelsio.com int wscale = cxgbi_sock_compute_wscale(csk->mss_idx); 1917b36b6e0Skxie@chelsio.com unsigned long long opt0; 1927b36b6e0Skxie@chelsio.com unsigned int opt2; 1937b36b6e0Skxie@chelsio.com unsigned int qid_atid = ((unsigned int)csk->atid) | 1947b36b6e0Skxie@chelsio.com (((unsigned int)csk->rss_qid) << 14); 1957b36b6e0Skxie@chelsio.com 196d7990b0cSAnish Bhatt opt0 = KEEP_ALIVE_F | 197d7990b0cSAnish Bhatt WND_SCALE_V(wscale) | 198d7990b0cSAnish Bhatt MSS_IDX_V(csk->mss_idx) | 199d7990b0cSAnish Bhatt L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) | 200d7990b0cSAnish Bhatt TX_CHAN_V(csk->tx_chan) | 201d7990b0cSAnish Bhatt SMAC_SEL_V(csk->smac_idx) | 202d7990b0cSAnish Bhatt ULP_MODE_V(ULP_MODE_ISCSI) | 203d7990b0cSAnish Bhatt RCV_BUFSIZ_V(cxgb4i_rcv_win >> 10); 204d7990b0cSAnish Bhatt opt2 = RX_CHANNEL_V(0) | 205d7990b0cSAnish Bhatt RSS_QUEUE_VALID_F | 206d7990b0cSAnish Bhatt (RX_FC_DISABLE_F) | 207d7990b0cSAnish Bhatt RSS_QUEUE_V(csk->rss_qid); 2087b36b6e0Skxie@chelsio.com 2093bd3e8bfSKaren Xie if (is_t4(lldi->adapter_type)) { 2103bd3e8bfSKaren Xie struct cpl_act_open_req *req = 2113bd3e8bfSKaren Xie (struct cpl_act_open_req *)skb->head; 2123bd3e8bfSKaren Xie 2137b36b6e0Skxie@chelsio.com INIT_TP_WR(req, 0); 2147b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, 2157b36b6e0Skxie@chelsio.com qid_atid)); 2167b36b6e0Skxie@chelsio.com req->local_port = csk->saddr.sin_port; 2177b36b6e0Skxie@chelsio.com req->peer_port = csk->daddr.sin_port; 2187b36b6e0Skxie@chelsio.com req->local_ip = csk->saddr.sin_addr.s_addr; 2197b36b6e0Skxie@chelsio.com req->peer_ip = csk->daddr.sin_addr.s_addr; 2207b36b6e0Skxie@chelsio.com req->opt0 = cpu_to_be64(opt0); 221ac0245ffSKaren Xie req->params = cpu_to_be32(cxgb4_select_ntuple( 222ac0245ffSKaren Xie csk->cdev->ports[csk->port_id], 223ac0245ffSKaren Xie csk->l2t)); 224d7990b0cSAnish Bhatt opt2 |= RX_FC_VALID_F; 2257b36b6e0Skxie@chelsio.com req->opt2 = cpu_to_be32(opt2); 2267b36b6e0Skxie@chelsio.com 2277b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 2283bd3e8bfSKaren Xie "csk t4 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n", 2297b36b6e0Skxie@chelsio.com csk, &req->local_ip, ntohs(req->local_port), 2307b36b6e0Skxie@chelsio.com &req->peer_ip, ntohs(req->peer_port), 2317b36b6e0Skxie@chelsio.com csk->atid, csk->rss_qid); 2323bd3e8bfSKaren Xie } else { 2333bd3e8bfSKaren Xie struct cpl_t5_act_open_req *req = 2343bd3e8bfSKaren Xie (struct cpl_t5_act_open_req *)skb->head; 2357b36b6e0Skxie@chelsio.com 2363bd3e8bfSKaren Xie INIT_TP_WR(req, 0); 2373bd3e8bfSKaren Xie OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, 2383bd3e8bfSKaren Xie qid_atid)); 2393bd3e8bfSKaren Xie req->local_port = csk->saddr.sin_port; 2403bd3e8bfSKaren Xie req->peer_port = csk->daddr.sin_port; 2413bd3e8bfSKaren Xie req->local_ip = csk->saddr.sin_addr.s_addr; 2423bd3e8bfSKaren Xie req->peer_ip = csk->daddr.sin_addr.s_addr; 2433bd3e8bfSKaren Xie req->opt0 = cpu_to_be64(opt0); 244d7990b0cSAnish Bhatt req->params = cpu_to_be64(FILTER_TUPLE_V( 245ac0245ffSKaren Xie cxgb4_select_ntuple( 246ac0245ffSKaren Xie csk->cdev->ports[csk->port_id], 247ac0245ffSKaren Xie csk->l2t))); 2483bd3e8bfSKaren Xie opt2 |= 1 << 31; 2493bd3e8bfSKaren Xie req->opt2 = cpu_to_be32(opt2); 2503bd3e8bfSKaren Xie 2513bd3e8bfSKaren Xie log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 2523bd3e8bfSKaren Xie "csk t5 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n", 2533bd3e8bfSKaren Xie csk, &req->local_ip, ntohs(req->local_port), 2543bd3e8bfSKaren Xie &req->peer_ip, ntohs(req->peer_port), 2553bd3e8bfSKaren Xie csk->atid, csk->rss_qid); 2563bd3e8bfSKaren Xie } 2573bd3e8bfSKaren Xie 2583bd3e8bfSKaren Xie set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); 259759a0cc5SAnish Bhatt 260759a0cc5SAnish Bhatt pr_info_ipaddr("t%d csk 0x%p,%u,0x%lx,%u, rss_qid %u.\n", 261759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), t4 ? 4 : 5, csk, 262759a0cc5SAnish Bhatt csk->state, csk->flags, csk->atid, csk->rss_qid); 263759a0cc5SAnish Bhatt 264759a0cc5SAnish Bhatt cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 265759a0cc5SAnish Bhatt } 266759a0cc5SAnish Bhatt 267f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 268759a0cc5SAnish Bhatt static void send_act_open_req6(struct cxgbi_sock *csk, struct sk_buff *skb, 269759a0cc5SAnish Bhatt struct l2t_entry *e) 270759a0cc5SAnish Bhatt { 271759a0cc5SAnish Bhatt struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 272759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 273759a0cc5SAnish Bhatt int wscale = cxgbi_sock_compute_wscale(csk->mss_idx); 274759a0cc5SAnish Bhatt unsigned long long opt0; 275759a0cc5SAnish Bhatt unsigned int opt2; 276759a0cc5SAnish Bhatt unsigned int qid_atid = ((unsigned int)csk->atid) | 277759a0cc5SAnish Bhatt (((unsigned int)csk->rss_qid) << 14); 278759a0cc5SAnish Bhatt 279d7990b0cSAnish Bhatt opt0 = KEEP_ALIVE_F | 280d7990b0cSAnish Bhatt WND_SCALE_V(wscale) | 281d7990b0cSAnish Bhatt MSS_IDX_V(csk->mss_idx) | 282d7990b0cSAnish Bhatt L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) | 283d7990b0cSAnish Bhatt TX_CHAN_V(csk->tx_chan) | 284d7990b0cSAnish Bhatt SMAC_SEL_V(csk->smac_idx) | 285d7990b0cSAnish Bhatt ULP_MODE_V(ULP_MODE_ISCSI) | 286d7990b0cSAnish Bhatt RCV_BUFSIZ_V(cxgb4i_rcv_win >> 10); 287759a0cc5SAnish Bhatt 288d7990b0cSAnish Bhatt opt2 = RX_CHANNEL_V(0) | 289d7990b0cSAnish Bhatt RSS_QUEUE_VALID_F | 290d7990b0cSAnish Bhatt RX_FC_DISABLE_F | 291d7990b0cSAnish Bhatt RSS_QUEUE_V(csk->rss_qid); 292759a0cc5SAnish Bhatt 293759a0cc5SAnish Bhatt if (t4) { 294759a0cc5SAnish Bhatt struct cpl_act_open_req6 *req = 295759a0cc5SAnish Bhatt (struct cpl_act_open_req6 *)skb->head; 296759a0cc5SAnish Bhatt 297759a0cc5SAnish Bhatt INIT_TP_WR(req, 0); 298759a0cc5SAnish Bhatt OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6, 299759a0cc5SAnish Bhatt qid_atid)); 300759a0cc5SAnish Bhatt req->local_port = csk->saddr6.sin6_port; 301759a0cc5SAnish Bhatt req->peer_port = csk->daddr6.sin6_port; 302759a0cc5SAnish Bhatt 303759a0cc5SAnish Bhatt req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr); 304759a0cc5SAnish Bhatt req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr + 305759a0cc5SAnish Bhatt 8); 306759a0cc5SAnish Bhatt req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr); 307759a0cc5SAnish Bhatt req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr + 308759a0cc5SAnish Bhatt 8); 309759a0cc5SAnish Bhatt 310759a0cc5SAnish Bhatt req->opt0 = cpu_to_be64(opt0); 311759a0cc5SAnish Bhatt 312d7990b0cSAnish Bhatt opt2 |= RX_FC_VALID_F; 313759a0cc5SAnish Bhatt req->opt2 = cpu_to_be32(opt2); 314759a0cc5SAnish Bhatt 315759a0cc5SAnish Bhatt req->params = cpu_to_be32(cxgb4_select_ntuple( 316759a0cc5SAnish Bhatt csk->cdev->ports[csk->port_id], 317759a0cc5SAnish Bhatt csk->l2t)); 318759a0cc5SAnish Bhatt } else { 319759a0cc5SAnish Bhatt struct cpl_t5_act_open_req6 *req = 320759a0cc5SAnish Bhatt (struct cpl_t5_act_open_req6 *)skb->head; 321759a0cc5SAnish Bhatt 322759a0cc5SAnish Bhatt INIT_TP_WR(req, 0); 323759a0cc5SAnish Bhatt OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6, 324759a0cc5SAnish Bhatt qid_atid)); 325759a0cc5SAnish Bhatt req->local_port = csk->saddr6.sin6_port; 326759a0cc5SAnish Bhatt req->peer_port = csk->daddr6.sin6_port; 327759a0cc5SAnish Bhatt req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr); 328759a0cc5SAnish Bhatt req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr + 329759a0cc5SAnish Bhatt 8); 330759a0cc5SAnish Bhatt req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr); 331759a0cc5SAnish Bhatt req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr + 332759a0cc5SAnish Bhatt 8); 333759a0cc5SAnish Bhatt req->opt0 = cpu_to_be64(opt0); 334759a0cc5SAnish Bhatt 335d7990b0cSAnish Bhatt opt2 |= T5_OPT_2_VALID_F; 336759a0cc5SAnish Bhatt req->opt2 = cpu_to_be32(opt2); 337759a0cc5SAnish Bhatt 338d7990b0cSAnish Bhatt req->params = cpu_to_be64(FILTER_TUPLE_V(cxgb4_select_ntuple( 339759a0cc5SAnish Bhatt csk->cdev->ports[csk->port_id], 340759a0cc5SAnish Bhatt csk->l2t))); 341759a0cc5SAnish Bhatt } 342759a0cc5SAnish Bhatt 343759a0cc5SAnish Bhatt set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); 344759a0cc5SAnish Bhatt 345759a0cc5SAnish Bhatt pr_info("t%d csk 0x%p,%u,0x%lx,%u, [%pI6]:%u-[%pI6]:%u, rss_qid %u.\n", 346759a0cc5SAnish Bhatt t4 ? 4 : 5, csk, csk->state, csk->flags, csk->atid, 347759a0cc5SAnish Bhatt &csk->saddr6.sin6_addr, ntohs(csk->saddr.sin_port), 348759a0cc5SAnish Bhatt &csk->daddr6.sin6_addr, ntohs(csk->daddr.sin_port), 349759a0cc5SAnish Bhatt csk->rss_qid); 350759a0cc5SAnish Bhatt 3517b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 3527b36b6e0Skxie@chelsio.com } 353f42bb57cSAnish Bhatt #endif 3547b36b6e0Skxie@chelsio.com 3557b36b6e0Skxie@chelsio.com static void send_close_req(struct cxgbi_sock *csk) 3567b36b6e0Skxie@chelsio.com { 3577b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_close; 3587b36b6e0Skxie@chelsio.com struct cpl_close_con_req *req = (struct cpl_close_con_req *)skb->head; 3597b36b6e0Skxie@chelsio.com unsigned int tid = csk->tid; 3607b36b6e0Skxie@chelsio.com 3617b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 3627b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u.\n", 3637b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 3647b36b6e0Skxie@chelsio.com csk->cpl_close = NULL; 3657b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 3667b36b6e0Skxie@chelsio.com INIT_TP_WR(req, tid); 3677b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_CLOSE_CON_REQ, tid)); 3687b36b6e0Skxie@chelsio.com req->rsvd = 0; 3697b36b6e0Skxie@chelsio.com 3707b36b6e0Skxie@chelsio.com cxgbi_sock_skb_entail(csk, skb); 3717b36b6e0Skxie@chelsio.com if (csk->state >= CTP_ESTABLISHED) 3727b36b6e0Skxie@chelsio.com push_tx_frames(csk, 1); 3737b36b6e0Skxie@chelsio.com } 3747b36b6e0Skxie@chelsio.com 3757b36b6e0Skxie@chelsio.com static void abort_arp_failure(void *handle, struct sk_buff *skb) 3767b36b6e0Skxie@chelsio.com { 3777b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk = (struct cxgbi_sock *)handle; 3787b36b6e0Skxie@chelsio.com struct cpl_abort_req *req; 3797b36b6e0Skxie@chelsio.com 3807b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 3817b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, abort.\n", 3827b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 3837b36b6e0Skxie@chelsio.com req = (struct cpl_abort_req *)skb->data; 3847b36b6e0Skxie@chelsio.com req->cmd = CPL_ABORT_NO_RST; 3857b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 3867b36b6e0Skxie@chelsio.com } 3877b36b6e0Skxie@chelsio.com 3887b36b6e0Skxie@chelsio.com static void send_abort_req(struct cxgbi_sock *csk) 3897b36b6e0Skxie@chelsio.com { 3907b36b6e0Skxie@chelsio.com struct cpl_abort_req *req; 3917b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_abort_req; 3927b36b6e0Skxie@chelsio.com 3937b36b6e0Skxie@chelsio.com if (unlikely(csk->state == CTP_ABORTING) || !skb || !csk->cdev) 3947b36b6e0Skxie@chelsio.com return; 3957b36b6e0Skxie@chelsio.com cxgbi_sock_set_state(csk, CTP_ABORTING); 3967b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_ABORT_RPL_PENDING); 3977b36b6e0Skxie@chelsio.com cxgbi_sock_purge_write_queue(csk); 3987b36b6e0Skxie@chelsio.com 3997b36b6e0Skxie@chelsio.com csk->cpl_abort_req = NULL; 4007b36b6e0Skxie@chelsio.com req = (struct cpl_abort_req *)skb->head; 4017b36b6e0Skxie@chelsio.com set_queue(skb, CPL_PRIORITY_DATA, csk); 4027b36b6e0Skxie@chelsio.com req->cmd = CPL_ABORT_SEND_RST; 4037b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, abort_arp_failure); 4047b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 4057b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, csk->tid)); 4067b36b6e0Skxie@chelsio.com req->rsvd0 = htonl(csk->snd_nxt); 4077b36b6e0Skxie@chelsio.com req->rsvd1 = !cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT); 4087b36b6e0Skxie@chelsio.com 4097b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 4107b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, snd_nxt %u, 0x%x.\n", 4117b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, csk->snd_nxt, 4127b36b6e0Skxie@chelsio.com req->rsvd1); 4137b36b6e0Skxie@chelsio.com 4147b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 4157b36b6e0Skxie@chelsio.com } 4167b36b6e0Skxie@chelsio.com 4177b36b6e0Skxie@chelsio.com static void send_abort_rpl(struct cxgbi_sock *csk, int rst_status) 4187b36b6e0Skxie@chelsio.com { 4197b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_abort_rpl; 4207b36b6e0Skxie@chelsio.com struct cpl_abort_rpl *rpl = (struct cpl_abort_rpl *)skb->head; 4217b36b6e0Skxie@chelsio.com 4227b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 4237b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, status %d.\n", 4247b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, rst_status); 4257b36b6e0Skxie@chelsio.com 4267b36b6e0Skxie@chelsio.com csk->cpl_abort_rpl = NULL; 4277b36b6e0Skxie@chelsio.com set_queue(skb, CPL_PRIORITY_DATA, csk); 4287b36b6e0Skxie@chelsio.com INIT_TP_WR(rpl, csk->tid); 4297b36b6e0Skxie@chelsio.com OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_RPL, csk->tid)); 4307b36b6e0Skxie@chelsio.com rpl->cmd = rst_status; 4317b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 4327b36b6e0Skxie@chelsio.com } 4337b36b6e0Skxie@chelsio.com 4347b36b6e0Skxie@chelsio.com /* 4357b36b6e0Skxie@chelsio.com * CPL connection rx data ack: host -> 4367b36b6e0Skxie@chelsio.com * Send RX credits through an RX_DATA_ACK CPL message. Returns the number of 4377b36b6e0Skxie@chelsio.com * credits sent. 4387b36b6e0Skxie@chelsio.com */ 4397b36b6e0Skxie@chelsio.com static u32 send_rx_credits(struct cxgbi_sock *csk, u32 credits) 4407b36b6e0Skxie@chelsio.com { 4417b36b6e0Skxie@chelsio.com struct sk_buff *skb; 4427b36b6e0Skxie@chelsio.com struct cpl_rx_data_ack *req; 4437b36b6e0Skxie@chelsio.com 4447b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 4457b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, credit %u.\n", 4467b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, credits); 4477b36b6e0Skxie@chelsio.com 44824d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_ATOMIC); 4497b36b6e0Skxie@chelsio.com if (!skb) { 4507b36b6e0Skxie@chelsio.com pr_info("csk 0x%p, credit %u, OOM.\n", csk, credits); 4517b36b6e0Skxie@chelsio.com return 0; 4527b36b6e0Skxie@chelsio.com } 4537b36b6e0Skxie@chelsio.com req = (struct cpl_rx_data_ack *)skb->head; 4547b36b6e0Skxie@chelsio.com 4557b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_ACK, csk->port_id); 4567b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 4577b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_RX_DATA_ACK, 4587b36b6e0Skxie@chelsio.com csk->tid)); 459d7990b0cSAnish Bhatt req->credit_dack = cpu_to_be32(RX_CREDITS_V(credits) 460d7990b0cSAnish Bhatt | RX_FORCE_ACK_F); 4617b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 4627b36b6e0Skxie@chelsio.com return credits; 4637b36b6e0Skxie@chelsio.com } 4647b36b6e0Skxie@chelsio.com 4657b36b6e0Skxie@chelsio.com /* 4667b36b6e0Skxie@chelsio.com * sgl_len - calculates the size of an SGL of the given capacity 4677b36b6e0Skxie@chelsio.com * @n: the number of SGL entries 4687b36b6e0Skxie@chelsio.com * Calculates the number of flits needed for a scatter/gather list that 4697b36b6e0Skxie@chelsio.com * can hold the given number of entries. 4707b36b6e0Skxie@chelsio.com */ 4717b36b6e0Skxie@chelsio.com static inline unsigned int sgl_len(unsigned int n) 4727b36b6e0Skxie@chelsio.com { 4737b36b6e0Skxie@chelsio.com n--; 4747b36b6e0Skxie@chelsio.com return (3 * n) / 2 + (n & 1) + 2; 4757b36b6e0Skxie@chelsio.com } 4767b36b6e0Skxie@chelsio.com 4777b36b6e0Skxie@chelsio.com /* 4787b36b6e0Skxie@chelsio.com * calc_tx_flits_ofld - calculate # of flits for an offload packet 4797b36b6e0Skxie@chelsio.com * @skb: the packet 4807b36b6e0Skxie@chelsio.com * 4817b36b6e0Skxie@chelsio.com * Returns the number of flits needed for the given offload packet. 4827b36b6e0Skxie@chelsio.com * These packets are already fully constructed and no additional headers 4837b36b6e0Skxie@chelsio.com * will be added. 4847b36b6e0Skxie@chelsio.com */ 4857b36b6e0Skxie@chelsio.com static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb) 4867b36b6e0Skxie@chelsio.com { 4877b36b6e0Skxie@chelsio.com unsigned int flits, cnt; 4887b36b6e0Skxie@chelsio.com 4897b36b6e0Skxie@chelsio.com if (is_ofld_imm(skb)) 4907b36b6e0Skxie@chelsio.com return DIV_ROUND_UP(skb->len, 8); 4917b36b6e0Skxie@chelsio.com flits = skb_transport_offset(skb) / 8; 4927b36b6e0Skxie@chelsio.com cnt = skb_shinfo(skb)->nr_frags; 493499e2e6fSIsaku Yamahata if (skb_tail_pointer(skb) != skb_transport_header(skb)) 4947b36b6e0Skxie@chelsio.com cnt++; 4957b36b6e0Skxie@chelsio.com return flits + sgl_len(cnt); 4967b36b6e0Skxie@chelsio.com } 4977b36b6e0Skxie@chelsio.com 4987b36b6e0Skxie@chelsio.com static inline void send_tx_flowc_wr(struct cxgbi_sock *csk) 4997b36b6e0Skxie@chelsio.com { 5007b36b6e0Skxie@chelsio.com struct sk_buff *skb; 5017b36b6e0Skxie@chelsio.com struct fw_flowc_wr *flowc; 5027b36b6e0Skxie@chelsio.com int flowclen, i; 5037b36b6e0Skxie@chelsio.com 5047b36b6e0Skxie@chelsio.com flowclen = 80; 50524d3f95aSkxie@chelsio.com skb = alloc_wr(flowclen, 0, GFP_ATOMIC); 5067b36b6e0Skxie@chelsio.com flowc = (struct fw_flowc_wr *)skb->head; 5077b36b6e0Skxie@chelsio.com flowc->op_to_nparams = 508e2ac9628SHariprasad Shenai htonl(FW_WR_OP_V(FW_FLOWC_WR) | FW_FLOWC_WR_NPARAMS_V(8)); 5097b36b6e0Skxie@chelsio.com flowc->flowid_len16 = 510e2ac9628SHariprasad Shenai htonl(FW_WR_LEN16_V(DIV_ROUND_UP(72, 16)) | 511e2ac9628SHariprasad Shenai FW_WR_FLOWID_V(csk->tid)); 5127b36b6e0Skxie@chelsio.com flowc->mnemval[0].mnemonic = FW_FLOWC_MNEM_PFNVFN; 513e27d6169Skxie@chelsio.com flowc->mnemval[0].val = htonl(csk->cdev->pfvf); 5147b36b6e0Skxie@chelsio.com flowc->mnemval[1].mnemonic = FW_FLOWC_MNEM_CH; 5157b36b6e0Skxie@chelsio.com flowc->mnemval[1].val = htonl(csk->tx_chan); 5167b36b6e0Skxie@chelsio.com flowc->mnemval[2].mnemonic = FW_FLOWC_MNEM_PORT; 5177b36b6e0Skxie@chelsio.com flowc->mnemval[2].val = htonl(csk->tx_chan); 5187b36b6e0Skxie@chelsio.com flowc->mnemval[3].mnemonic = FW_FLOWC_MNEM_IQID; 5197b36b6e0Skxie@chelsio.com flowc->mnemval[3].val = htonl(csk->rss_qid); 5207b36b6e0Skxie@chelsio.com flowc->mnemval[4].mnemonic = FW_FLOWC_MNEM_SNDNXT; 5217b36b6e0Skxie@chelsio.com flowc->mnemval[4].val = htonl(csk->snd_nxt); 5227b36b6e0Skxie@chelsio.com flowc->mnemval[5].mnemonic = FW_FLOWC_MNEM_RCVNXT; 5237b36b6e0Skxie@chelsio.com flowc->mnemval[5].val = htonl(csk->rcv_nxt); 5247b36b6e0Skxie@chelsio.com flowc->mnemval[6].mnemonic = FW_FLOWC_MNEM_SNDBUF; 5257b36b6e0Skxie@chelsio.com flowc->mnemval[6].val = htonl(cxgb4i_snd_win); 5267b36b6e0Skxie@chelsio.com flowc->mnemval[7].mnemonic = FW_FLOWC_MNEM_MSS; 5277b36b6e0Skxie@chelsio.com flowc->mnemval[7].val = htonl(csk->advmss); 5287b36b6e0Skxie@chelsio.com flowc->mnemval[8].mnemonic = 0; 5297b36b6e0Skxie@chelsio.com flowc->mnemval[8].val = 0; 5307b36b6e0Skxie@chelsio.com for (i = 0; i < 9; i++) { 5317b36b6e0Skxie@chelsio.com flowc->mnemval[i].r4[0] = 0; 5327b36b6e0Skxie@chelsio.com flowc->mnemval[i].r4[1] = 0; 5337b36b6e0Skxie@chelsio.com flowc->mnemval[i].r4[2] = 0; 5347b36b6e0Skxie@chelsio.com } 5357b36b6e0Skxie@chelsio.com set_queue(skb, CPL_PRIORITY_DATA, csk); 5367b36b6e0Skxie@chelsio.com 5377b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 5387b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, %u,%u,%u,%u,%u,%u,%u.\n", 5397b36b6e0Skxie@chelsio.com csk, csk->tid, 0, csk->tx_chan, csk->rss_qid, 5407b36b6e0Skxie@chelsio.com csk->snd_nxt, csk->rcv_nxt, cxgb4i_snd_win, 5417b36b6e0Skxie@chelsio.com csk->advmss); 5427b36b6e0Skxie@chelsio.com 5437b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 5447b36b6e0Skxie@chelsio.com } 5457b36b6e0Skxie@chelsio.com 5467b36b6e0Skxie@chelsio.com static inline void make_tx_data_wr(struct cxgbi_sock *csk, struct sk_buff *skb, 5477b36b6e0Skxie@chelsio.com int dlen, int len, u32 credits, int compl) 5487b36b6e0Skxie@chelsio.com { 5497b36b6e0Skxie@chelsio.com struct fw_ofld_tx_data_wr *req; 5507b36b6e0Skxie@chelsio.com unsigned int submode = cxgbi_skcb_ulp_mode(skb) & 3; 551e2ac9628SHariprasad Shenai unsigned int wr_ulp_mode = 0, val; 5527b36b6e0Skxie@chelsio.com 5537b36b6e0Skxie@chelsio.com req = (struct fw_ofld_tx_data_wr *)__skb_push(skb, sizeof(*req)); 5547b36b6e0Skxie@chelsio.com 5557b36b6e0Skxie@chelsio.com if (is_ofld_imm(skb)) { 556e2ac9628SHariprasad Shenai req->op_to_immdlen = htonl(FW_WR_OP_V(FW_OFLD_TX_DATA_WR) | 557e2ac9628SHariprasad Shenai FW_WR_COMPL_F | 558e2ac9628SHariprasad Shenai FW_WR_IMMDLEN_V(dlen)); 559e2ac9628SHariprasad Shenai req->flowid_len16 = htonl(FW_WR_FLOWID_V(csk->tid) | 560e2ac9628SHariprasad Shenai FW_WR_LEN16_V(credits)); 5617b36b6e0Skxie@chelsio.com } else { 5627b36b6e0Skxie@chelsio.com req->op_to_immdlen = 563e2ac9628SHariprasad Shenai cpu_to_be32(FW_WR_OP_V(FW_OFLD_TX_DATA_WR) | 564e2ac9628SHariprasad Shenai FW_WR_COMPL_F | 565e2ac9628SHariprasad Shenai FW_WR_IMMDLEN_V(0)); 5667b36b6e0Skxie@chelsio.com req->flowid_len16 = 567e2ac9628SHariprasad Shenai cpu_to_be32(FW_WR_FLOWID_V(csk->tid) | 568e2ac9628SHariprasad Shenai FW_WR_LEN16_V(credits)); 5697b36b6e0Skxie@chelsio.com } 5707b36b6e0Skxie@chelsio.com if (submode) 571e2ac9628SHariprasad Shenai wr_ulp_mode = FW_OFLD_TX_DATA_WR_ULPMODE_V(ULP2_MODE_ISCSI) | 572e2ac9628SHariprasad Shenai FW_OFLD_TX_DATA_WR_ULPSUBMODE_V(submode); 573e2ac9628SHariprasad Shenai val = skb_peek(&csk->write_queue) ? 0 : 1; 5746aca4112SKaren Xie req->tunnel_to_proxy = htonl(wr_ulp_mode | 575e2ac9628SHariprasad Shenai FW_OFLD_TX_DATA_WR_SHOVE_V(val)); 5767b36b6e0Skxie@chelsio.com req->plen = htonl(len); 5777b36b6e0Skxie@chelsio.com if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) 5787b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 5797b36b6e0Skxie@chelsio.com } 5807b36b6e0Skxie@chelsio.com 5817b36b6e0Skxie@chelsio.com static void arp_failure_skb_discard(void *handle, struct sk_buff *skb) 5827b36b6e0Skxie@chelsio.com { 5837b36b6e0Skxie@chelsio.com kfree_skb(skb); 5847b36b6e0Skxie@chelsio.com } 5857b36b6e0Skxie@chelsio.com 5867b36b6e0Skxie@chelsio.com static int push_tx_frames(struct cxgbi_sock *csk, int req_completion) 5877b36b6e0Skxie@chelsio.com { 5887b36b6e0Skxie@chelsio.com int total_size = 0; 5897b36b6e0Skxie@chelsio.com struct sk_buff *skb; 5907b36b6e0Skxie@chelsio.com 5917b36b6e0Skxie@chelsio.com if (unlikely(csk->state < CTP_ESTABLISHED || 5927b36b6e0Skxie@chelsio.com csk->state == CTP_CLOSE_WAIT_1 || csk->state >= CTP_ABORTING)) { 5937b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK | 5947b36b6e0Skxie@chelsio.com 1 << CXGBI_DBG_PDU_TX, 5957b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, in closing state.\n", 5967b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 5977b36b6e0Skxie@chelsio.com return 0; 5987b36b6e0Skxie@chelsio.com } 5997b36b6e0Skxie@chelsio.com 6007b36b6e0Skxie@chelsio.com while (csk->wr_cred && (skb = skb_peek(&csk->write_queue)) != NULL) { 6017b36b6e0Skxie@chelsio.com int dlen = skb->len; 6027b36b6e0Skxie@chelsio.com int len = skb->len; 6037b36b6e0Skxie@chelsio.com unsigned int credits_needed; 6047b36b6e0Skxie@chelsio.com 6057b36b6e0Skxie@chelsio.com skb_reset_transport_header(skb); 6067b36b6e0Skxie@chelsio.com if (is_ofld_imm(skb)) 607*84944d8cSKaren Xie credits_needed = DIV_ROUND_UP(dlen, 16); 6087b36b6e0Skxie@chelsio.com else 609*84944d8cSKaren Xie credits_needed = DIV_ROUND_UP( 610*84944d8cSKaren Xie 8 * calc_tx_flits_ofld(skb), 611*84944d8cSKaren Xie 16); 612*84944d8cSKaren Xie 613*84944d8cSKaren Xie if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) 614*84944d8cSKaren Xie credits_needed += DIV_ROUND_UP( 615*84944d8cSKaren Xie sizeof(struct fw_ofld_tx_data_wr), 6167b36b6e0Skxie@chelsio.com 16); 6177b36b6e0Skxie@chelsio.com 6187b36b6e0Skxie@chelsio.com if (csk->wr_cred < credits_needed) { 6197b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_TX, 6207b36b6e0Skxie@chelsio.com "csk 0x%p, skb %u/%u, wr %d < %u.\n", 6217b36b6e0Skxie@chelsio.com csk, skb->len, skb->data_len, 6227b36b6e0Skxie@chelsio.com credits_needed, csk->wr_cred); 6237b36b6e0Skxie@chelsio.com break; 6247b36b6e0Skxie@chelsio.com } 6257b36b6e0Skxie@chelsio.com __skb_unlink(skb, &csk->write_queue); 6267b36b6e0Skxie@chelsio.com set_queue(skb, CPL_PRIORITY_DATA, csk); 6277b36b6e0Skxie@chelsio.com skb->csum = credits_needed; 6287b36b6e0Skxie@chelsio.com csk->wr_cred -= credits_needed; 6297b36b6e0Skxie@chelsio.com csk->wr_una_cred += credits_needed; 6307b36b6e0Skxie@chelsio.com cxgbi_sock_enqueue_wr(csk, skb); 6317b36b6e0Skxie@chelsio.com 6327b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_TX, 6337b36b6e0Skxie@chelsio.com "csk 0x%p, skb %u/%u, wr %d, left %u, unack %u.\n", 6347b36b6e0Skxie@chelsio.com csk, skb->len, skb->data_len, credits_needed, 6357b36b6e0Skxie@chelsio.com csk->wr_cred, csk->wr_una_cred); 6367b36b6e0Skxie@chelsio.com 6377b36b6e0Skxie@chelsio.com if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) { 6387b36b6e0Skxie@chelsio.com if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) { 6397b36b6e0Skxie@chelsio.com send_tx_flowc_wr(csk); 6407b36b6e0Skxie@chelsio.com skb->csum += 5; 6417b36b6e0Skxie@chelsio.com csk->wr_cred -= 5; 6427b36b6e0Skxie@chelsio.com csk->wr_una_cred += 5; 6437b36b6e0Skxie@chelsio.com } 6447b36b6e0Skxie@chelsio.com len += cxgbi_ulp_extra_len(cxgbi_skcb_ulp_mode(skb)); 6457b36b6e0Skxie@chelsio.com make_tx_data_wr(csk, skb, dlen, len, credits_needed, 6467b36b6e0Skxie@chelsio.com req_completion); 6477b36b6e0Skxie@chelsio.com csk->snd_nxt += len; 6487b36b6e0Skxie@chelsio.com cxgbi_skcb_clear_flag(skb, SKCBF_TX_NEED_HDR); 6497b36b6e0Skxie@chelsio.com } 6507b36b6e0Skxie@chelsio.com total_size += skb->truesize; 6517b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, arp_failure_skb_discard); 6527b36b6e0Skxie@chelsio.com 6537b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_TX, 6547b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, skb 0x%p, %u.\n", 6557b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb, len); 6567b36b6e0Skxie@chelsio.com 6577b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 6587b36b6e0Skxie@chelsio.com } 6597b36b6e0Skxie@chelsio.com return total_size; 6607b36b6e0Skxie@chelsio.com } 6617b36b6e0Skxie@chelsio.com 6627b36b6e0Skxie@chelsio.com static inline void free_atid(struct cxgbi_sock *csk) 6637b36b6e0Skxie@chelsio.com { 6647b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 6657b36b6e0Skxie@chelsio.com 6667b36b6e0Skxie@chelsio.com if (cxgbi_sock_flag(csk, CTPF_HAS_ATID)) { 6677b36b6e0Skxie@chelsio.com cxgb4_free_atid(lldi->tids, csk->atid); 6687b36b6e0Skxie@chelsio.com cxgbi_sock_clear_flag(csk, CTPF_HAS_ATID); 6697b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 6707b36b6e0Skxie@chelsio.com } 6717b36b6e0Skxie@chelsio.com } 6727b36b6e0Skxie@chelsio.com 6737b36b6e0Skxie@chelsio.com static void do_act_establish(struct cxgbi_device *cdev, struct sk_buff *skb) 6747b36b6e0Skxie@chelsio.com { 6757b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 6767b36b6e0Skxie@chelsio.com struct cpl_act_establish *req = (struct cpl_act_establish *)skb->data; 6777b36b6e0Skxie@chelsio.com unsigned short tcp_opt = ntohs(req->tcp_opt); 6787b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 6797b36b6e0Skxie@chelsio.com unsigned int atid = GET_TID_TID(ntohl(req->tos_atid)); 6807b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 6817b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 6827b36b6e0Skxie@chelsio.com u32 rcv_isn = be32_to_cpu(req->rcv_isn); 6837b36b6e0Skxie@chelsio.com 6847b36b6e0Skxie@chelsio.com csk = lookup_atid(t, atid); 6857b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 6867b36b6e0Skxie@chelsio.com pr_err("NO conn. for atid %u, cdev 0x%p.\n", atid, cdev); 6877b36b6e0Skxie@chelsio.com goto rel_skb; 6887b36b6e0Skxie@chelsio.com } 6897b36b6e0Skxie@chelsio.com 690e27d6169Skxie@chelsio.com if (csk->atid != atid) { 691e27d6169Skxie@chelsio.com pr_err("bad conn atid %u, csk 0x%p,%u,0x%lx,tid %u, atid %u.\n", 692e27d6169Skxie@chelsio.com atid, csk, csk->state, csk->flags, csk->tid, csk->atid); 693e27d6169Skxie@chelsio.com goto rel_skb; 694e27d6169Skxie@chelsio.com } 695e27d6169Skxie@chelsio.com 696759a0cc5SAnish Bhatt pr_info_ipaddr("atid 0x%x, tid 0x%x, csk 0x%p,%u,0x%lx, isn %u.\n", 697759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 698759a0cc5SAnish Bhatt atid, tid, csk, csk->state, csk->flags, rcv_isn); 699759a0cc5SAnish Bhatt 700759a0cc5SAnish Bhatt module_put(THIS_MODULE); 7017b36b6e0Skxie@chelsio.com 7027b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 7037b36b6e0Skxie@chelsio.com csk->tid = tid; 7047b36b6e0Skxie@chelsio.com cxgb4_insert_tid(lldi->tids, csk, tid); 7057b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_HAS_TID); 7067b36b6e0Skxie@chelsio.com 7077b36b6e0Skxie@chelsio.com free_atid(csk); 7087b36b6e0Skxie@chelsio.com 7097b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 7107b36b6e0Skxie@chelsio.com if (unlikely(csk->state != CTP_ACTIVE_OPEN)) 7117b36b6e0Skxie@chelsio.com pr_info("csk 0x%p,%u,0x%lx,%u, got EST.\n", 7127b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 7137b36b6e0Skxie@chelsio.com 7147b36b6e0Skxie@chelsio.com if (csk->retry_timer.function) { 7157b36b6e0Skxie@chelsio.com del_timer(&csk->retry_timer); 7167b36b6e0Skxie@chelsio.com csk->retry_timer.function = NULL; 7177b36b6e0Skxie@chelsio.com } 7187b36b6e0Skxie@chelsio.com 7197b36b6e0Skxie@chelsio.com csk->copied_seq = csk->rcv_wup = csk->rcv_nxt = rcv_isn; 7207b36b6e0Skxie@chelsio.com /* 7217b36b6e0Skxie@chelsio.com * Causes the first RX_DATA_ACK to supply any Rx credits we couldn't 7227b36b6e0Skxie@chelsio.com * pass through opt0. 7237b36b6e0Skxie@chelsio.com */ 7247b36b6e0Skxie@chelsio.com if (cxgb4i_rcv_win > (RCV_BUFSIZ_MASK << 10)) 7257b36b6e0Skxie@chelsio.com csk->rcv_wup -= cxgb4i_rcv_win - (RCV_BUFSIZ_MASK << 10); 7267b36b6e0Skxie@chelsio.com 7277b36b6e0Skxie@chelsio.com csk->advmss = lldi->mtus[GET_TCPOPT_MSS(tcp_opt)] - 40; 7287b36b6e0Skxie@chelsio.com if (GET_TCPOPT_TSTAMP(tcp_opt)) 7297b36b6e0Skxie@chelsio.com csk->advmss -= 12; 7307b36b6e0Skxie@chelsio.com if (csk->advmss < 128) 7317b36b6e0Skxie@chelsio.com csk->advmss = 128; 7327b36b6e0Skxie@chelsio.com 7337b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 7347b36b6e0Skxie@chelsio.com "csk 0x%p, mss_idx %u, advmss %u.\n", 7357b36b6e0Skxie@chelsio.com csk, GET_TCPOPT_MSS(tcp_opt), csk->advmss); 7367b36b6e0Skxie@chelsio.com 7377b36b6e0Skxie@chelsio.com cxgbi_sock_established(csk, ntohl(req->snd_isn), ntohs(req->tcp_opt)); 7387b36b6e0Skxie@chelsio.com 7397b36b6e0Skxie@chelsio.com if (unlikely(cxgbi_sock_flag(csk, CTPF_ACTIVE_CLOSE_NEEDED))) 7407b36b6e0Skxie@chelsio.com send_abort_req(csk); 7417b36b6e0Skxie@chelsio.com else { 7427b36b6e0Skxie@chelsio.com if (skb_queue_len(&csk->write_queue)) 7437b36b6e0Skxie@chelsio.com push_tx_frames(csk, 0); 7447b36b6e0Skxie@chelsio.com cxgbi_conn_tx_open(csk); 7457b36b6e0Skxie@chelsio.com } 7467b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 7477b36b6e0Skxie@chelsio.com 7487b36b6e0Skxie@chelsio.com rel_skb: 7497b36b6e0Skxie@chelsio.com __kfree_skb(skb); 7507b36b6e0Skxie@chelsio.com } 7517b36b6e0Skxie@chelsio.com 7527b36b6e0Skxie@chelsio.com static int act_open_rpl_status_to_errno(int status) 7537b36b6e0Skxie@chelsio.com { 7547b36b6e0Skxie@chelsio.com switch (status) { 7557b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_RESET: 7567b36b6e0Skxie@chelsio.com return -ECONNREFUSED; 7577b36b6e0Skxie@chelsio.com case CPL_ERR_ARP_MISS: 7587b36b6e0Skxie@chelsio.com return -EHOSTUNREACH; 7597b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_TIMEDOUT: 7607b36b6e0Skxie@chelsio.com return -ETIMEDOUT; 7617b36b6e0Skxie@chelsio.com case CPL_ERR_TCAM_FULL: 7627b36b6e0Skxie@chelsio.com return -ENOMEM; 7637b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_EXIST: 7647b36b6e0Skxie@chelsio.com return -EADDRINUSE; 7657b36b6e0Skxie@chelsio.com default: 7667b36b6e0Skxie@chelsio.com return -EIO; 7677b36b6e0Skxie@chelsio.com } 7687b36b6e0Skxie@chelsio.com } 7697b36b6e0Skxie@chelsio.com 7707b36b6e0Skxie@chelsio.com static void csk_act_open_retry_timer(unsigned long data) 7717b36b6e0Skxie@chelsio.com { 772001586a7SAnish Bhatt struct sk_buff *skb = NULL; 7737b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk = (struct cxgbi_sock *)data; 7743bd3e8bfSKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 775759a0cc5SAnish Bhatt void (*send_act_open_func)(struct cxgbi_sock *, struct sk_buff *, 776759a0cc5SAnish Bhatt struct l2t_entry *); 777759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type), size, size6; 7787b36b6e0Skxie@chelsio.com 7797b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 7807b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 7817b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 7827b36b6e0Skxie@chelsio.com 7837b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 7847b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 785759a0cc5SAnish Bhatt 786759a0cc5SAnish Bhatt if (t4) { 787759a0cc5SAnish Bhatt size = sizeof(struct cpl_act_open_req); 788759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_act_open_req6); 789759a0cc5SAnish Bhatt } else { 790759a0cc5SAnish Bhatt size = sizeof(struct cpl_t5_act_open_req); 791759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_t5_act_open_req6); 792759a0cc5SAnish Bhatt } 793759a0cc5SAnish Bhatt 794759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) { 795759a0cc5SAnish Bhatt send_act_open_func = send_act_open_req; 796759a0cc5SAnish Bhatt skb = alloc_wr(size, 0, GFP_ATOMIC); 797f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 798759a0cc5SAnish Bhatt } else { 799759a0cc5SAnish Bhatt send_act_open_func = send_act_open_req6; 800759a0cc5SAnish Bhatt skb = alloc_wr(size6, 0, GFP_ATOMIC); 801f42bb57cSAnish Bhatt #endif 802759a0cc5SAnish Bhatt } 803759a0cc5SAnish Bhatt 8047b36b6e0Skxie@chelsio.com if (!skb) 8057b36b6e0Skxie@chelsio.com cxgbi_sock_fail_act_open(csk, -ENOMEM); 8067b36b6e0Skxie@chelsio.com else { 8077b36b6e0Skxie@chelsio.com skb->sk = (struct sock *)csk; 8087b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, 8097b36b6e0Skxie@chelsio.com cxgbi_sock_act_open_req_arp_failure); 810759a0cc5SAnish Bhatt send_act_open_func(csk, skb, csk->l2t); 8117b36b6e0Skxie@chelsio.com } 812759a0cc5SAnish Bhatt 8137b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 8147b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 815759a0cc5SAnish Bhatt 8167b36b6e0Skxie@chelsio.com } 8177b36b6e0Skxie@chelsio.com 8187b36b6e0Skxie@chelsio.com static void do_act_open_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 8197b36b6e0Skxie@chelsio.com { 8207b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 8217b36b6e0Skxie@chelsio.com struct cpl_act_open_rpl *rpl = (struct cpl_act_open_rpl *)skb->data; 8227b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 8237b36b6e0Skxie@chelsio.com unsigned int atid = 8247b36b6e0Skxie@chelsio.com GET_TID_TID(GET_AOPEN_ATID(be32_to_cpu(rpl->atid_status))); 8257b36b6e0Skxie@chelsio.com unsigned int status = GET_AOPEN_STATUS(be32_to_cpu(rpl->atid_status)); 8267b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 8277b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 8287b36b6e0Skxie@chelsio.com 8297b36b6e0Skxie@chelsio.com csk = lookup_atid(t, atid); 8307b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 8317b36b6e0Skxie@chelsio.com pr_err("NO matching conn. atid %u, tid %u.\n", atid, tid); 8327b36b6e0Skxie@chelsio.com goto rel_skb; 8337b36b6e0Skxie@chelsio.com } 8347b36b6e0Skxie@chelsio.com 835759a0cc5SAnish Bhatt pr_info_ipaddr("tid %u/%u, status %u.\n" 836759a0cc5SAnish Bhatt "csk 0x%p,%u,0x%lx. ", (&csk->saddr), (&csk->daddr), 837e27d6169Skxie@chelsio.com atid, tid, status, csk, csk->state, csk->flags); 8387b36b6e0Skxie@chelsio.com 839150cca7cSKaren Xie if (status == CPL_ERR_RTX_NEG_ADVICE) 840150cca7cSKaren Xie goto rel_skb; 841150cca7cSKaren Xie 842ee7255adSAnish Bhatt module_put(THIS_MODULE); 843ee7255adSAnish Bhatt 8447b36b6e0Skxie@chelsio.com if (status && status != CPL_ERR_TCAM_FULL && 8457b36b6e0Skxie@chelsio.com status != CPL_ERR_CONN_EXIST && 8467b36b6e0Skxie@chelsio.com status != CPL_ERR_ARP_MISS) 8477b36b6e0Skxie@chelsio.com cxgb4_remove_tid(lldi->tids, csk->port_id, GET_TID(rpl)); 8487b36b6e0Skxie@chelsio.com 8497b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 8507b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 8517b36b6e0Skxie@chelsio.com 8527b36b6e0Skxie@chelsio.com if (status == CPL_ERR_CONN_EXIST && 8537b36b6e0Skxie@chelsio.com csk->retry_timer.function != csk_act_open_retry_timer) { 8547b36b6e0Skxie@chelsio.com csk->retry_timer.function = csk_act_open_retry_timer; 8557b36b6e0Skxie@chelsio.com mod_timer(&csk->retry_timer, jiffies + HZ / 2); 8567b36b6e0Skxie@chelsio.com } else 8577b36b6e0Skxie@chelsio.com cxgbi_sock_fail_act_open(csk, 8587b36b6e0Skxie@chelsio.com act_open_rpl_status_to_errno(status)); 8597b36b6e0Skxie@chelsio.com 8607b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 8617b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 8627b36b6e0Skxie@chelsio.com rel_skb: 8637b36b6e0Skxie@chelsio.com __kfree_skb(skb); 8647b36b6e0Skxie@chelsio.com } 8657b36b6e0Skxie@chelsio.com 8667b36b6e0Skxie@chelsio.com static void do_peer_close(struct cxgbi_device *cdev, struct sk_buff *skb) 8677b36b6e0Skxie@chelsio.com { 8687b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 8697b36b6e0Skxie@chelsio.com struct cpl_peer_close *req = (struct cpl_peer_close *)skb->data; 8707b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 8717b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 8727b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 8737b36b6e0Skxie@chelsio.com 8747b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 8757b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 8767b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 8777b36b6e0Skxie@chelsio.com goto rel_skb; 8787b36b6e0Skxie@chelsio.com } 879759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n", 880759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 8817b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 8827b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_peer_close(csk); 8837b36b6e0Skxie@chelsio.com rel_skb: 8847b36b6e0Skxie@chelsio.com __kfree_skb(skb); 8857b36b6e0Skxie@chelsio.com } 8867b36b6e0Skxie@chelsio.com 8877b36b6e0Skxie@chelsio.com static void do_close_con_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 8887b36b6e0Skxie@chelsio.com { 8897b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 8907b36b6e0Skxie@chelsio.com struct cpl_close_con_rpl *rpl = (struct cpl_close_con_rpl *)skb->data; 8917b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 8927b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 8937b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 8947b36b6e0Skxie@chelsio.com 8957b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 8967b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 8977b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 8987b36b6e0Skxie@chelsio.com goto rel_skb; 8997b36b6e0Skxie@chelsio.com } 900759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n", 901759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 9027b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 9037b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_close_conn_rpl(csk, ntohl(rpl->snd_nxt)); 9047b36b6e0Skxie@chelsio.com rel_skb: 9057b36b6e0Skxie@chelsio.com __kfree_skb(skb); 9067b36b6e0Skxie@chelsio.com } 9077b36b6e0Skxie@chelsio.com 9087b36b6e0Skxie@chelsio.com static int abort_status_to_errno(struct cxgbi_sock *csk, int abort_reason, 9097b36b6e0Skxie@chelsio.com int *need_rst) 9107b36b6e0Skxie@chelsio.com { 9117b36b6e0Skxie@chelsio.com switch (abort_reason) { 9127b36b6e0Skxie@chelsio.com case CPL_ERR_BAD_SYN: /* fall through */ 9137b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_RESET: 9147b36b6e0Skxie@chelsio.com return csk->state > CTP_ESTABLISHED ? 9157b36b6e0Skxie@chelsio.com -EPIPE : -ECONNRESET; 9167b36b6e0Skxie@chelsio.com case CPL_ERR_XMIT_TIMEDOUT: 9177b36b6e0Skxie@chelsio.com case CPL_ERR_PERSIST_TIMEDOUT: 9187b36b6e0Skxie@chelsio.com case CPL_ERR_FINWAIT2_TIMEDOUT: 9197b36b6e0Skxie@chelsio.com case CPL_ERR_KEEPALIVE_TIMEDOUT: 9207b36b6e0Skxie@chelsio.com return -ETIMEDOUT; 9217b36b6e0Skxie@chelsio.com default: 9227b36b6e0Skxie@chelsio.com return -EIO; 9237b36b6e0Skxie@chelsio.com } 9247b36b6e0Skxie@chelsio.com } 9257b36b6e0Skxie@chelsio.com 9267b36b6e0Skxie@chelsio.com static void do_abort_req_rss(struct cxgbi_device *cdev, struct sk_buff *skb) 9277b36b6e0Skxie@chelsio.com { 9287b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 9297b36b6e0Skxie@chelsio.com struct cpl_abort_req_rss *req = (struct cpl_abort_req_rss *)skb->data; 9307b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 9317b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 9327b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 9337b36b6e0Skxie@chelsio.com int rst_status = CPL_ABORT_NO_RST; 9347b36b6e0Skxie@chelsio.com 9357b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 9367b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 9377b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 9387b36b6e0Skxie@chelsio.com goto rel_skb; 9397b36b6e0Skxie@chelsio.com } 9407b36b6e0Skxie@chelsio.com 941759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n", 942759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 9437b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, req->status); 9447b36b6e0Skxie@chelsio.com 9457b36b6e0Skxie@chelsio.com if (req->status == CPL_ERR_RTX_NEG_ADVICE || 9467b36b6e0Skxie@chelsio.com req->status == CPL_ERR_PERSIST_NEG_ADVICE) 9477b36b6e0Skxie@chelsio.com goto rel_skb; 9487b36b6e0Skxie@chelsio.com 9497b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 9507b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 9517b36b6e0Skxie@chelsio.com 9527b07bf24SAnish Bhatt cxgbi_sock_clear_flag(csk, CTPF_ABORT_REQ_RCVD); 9537b07bf24SAnish Bhatt 9547b07bf24SAnish Bhatt if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) { 9557b07bf24SAnish Bhatt send_tx_flowc_wr(csk); 9567b07bf24SAnish Bhatt cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 9577b36b6e0Skxie@chelsio.com } 9587b36b6e0Skxie@chelsio.com 9597b07bf24SAnish Bhatt cxgbi_sock_set_flag(csk, CTPF_ABORT_REQ_RCVD); 9607b07bf24SAnish Bhatt cxgbi_sock_set_state(csk, CTP_ABORTING); 9617b07bf24SAnish Bhatt 9627b36b6e0Skxie@chelsio.com send_abort_rpl(csk, rst_status); 9637b36b6e0Skxie@chelsio.com 9647b36b6e0Skxie@chelsio.com if (!cxgbi_sock_flag(csk, CTPF_ABORT_RPL_PENDING)) { 9657b36b6e0Skxie@chelsio.com csk->err = abort_status_to_errno(csk, req->status, &rst_status); 9667b36b6e0Skxie@chelsio.com cxgbi_sock_closed(csk); 9677b36b6e0Skxie@chelsio.com } 9687b07bf24SAnish Bhatt 9697b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 9707b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 9717b36b6e0Skxie@chelsio.com rel_skb: 9727b36b6e0Skxie@chelsio.com __kfree_skb(skb); 9737b36b6e0Skxie@chelsio.com } 9747b36b6e0Skxie@chelsio.com 9757b36b6e0Skxie@chelsio.com static void do_abort_rpl_rss(struct cxgbi_device *cdev, struct sk_buff *skb) 9767b36b6e0Skxie@chelsio.com { 9777b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 9787b36b6e0Skxie@chelsio.com struct cpl_abort_rpl_rss *rpl = (struct cpl_abort_rpl_rss *)skb->data; 9797b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 9807b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 9817b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 9827b36b6e0Skxie@chelsio.com 9837b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 9847b36b6e0Skxie@chelsio.com if (!csk) 9857b36b6e0Skxie@chelsio.com goto rel_skb; 9867b36b6e0Skxie@chelsio.com 987759a0cc5SAnish Bhatt if (csk) 988759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n", 989759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), csk, 990759a0cc5SAnish Bhatt csk->state, csk->flags, csk->tid, rpl->status); 9917b36b6e0Skxie@chelsio.com 9927b36b6e0Skxie@chelsio.com if (rpl->status == CPL_ERR_ABORT_FAILED) 9937b36b6e0Skxie@chelsio.com goto rel_skb; 9947b36b6e0Skxie@chelsio.com 9957b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_abort_rpl(csk); 9967b36b6e0Skxie@chelsio.com rel_skb: 9977b36b6e0Skxie@chelsio.com __kfree_skb(skb); 9987b36b6e0Skxie@chelsio.com } 9997b36b6e0Skxie@chelsio.com 10007b36b6e0Skxie@chelsio.com static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb) 10017b36b6e0Skxie@chelsio.com { 10027b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 10037b36b6e0Skxie@chelsio.com struct cpl_iscsi_hdr *cpl = (struct cpl_iscsi_hdr *)skb->data; 10047b36b6e0Skxie@chelsio.com unsigned short pdu_len_ddp = be16_to_cpu(cpl->pdu_len_ddp); 10057b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(cpl); 10067b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 10077b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 10087b36b6e0Skxie@chelsio.com 10097b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 10107b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 10117b36b6e0Skxie@chelsio.com pr_err("can't find conn. for tid %u.\n", tid); 10127b36b6e0Skxie@chelsio.com goto rel_skb; 10137b36b6e0Skxie@chelsio.com } 10147b36b6e0Skxie@chelsio.com 10157b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 10167b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p,%u, 0x%x.\n", 10177b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb, skb->len, 10187b36b6e0Skxie@chelsio.com pdu_len_ddp); 10197b36b6e0Skxie@chelsio.com 10207b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 10217b36b6e0Skxie@chelsio.com 10227b36b6e0Skxie@chelsio.com if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) { 10237b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 10247b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, bad state.\n", 10257b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 10267b36b6e0Skxie@chelsio.com if (csk->state != CTP_ABORTING) 10277b36b6e0Skxie@chelsio.com goto abort_conn; 10287b36b6e0Skxie@chelsio.com else 10297b36b6e0Skxie@chelsio.com goto discard; 10307b36b6e0Skxie@chelsio.com } 10317b36b6e0Skxie@chelsio.com 10327b36b6e0Skxie@chelsio.com cxgbi_skcb_tcp_seq(skb) = ntohl(cpl->seq); 1033e27d6169Skxie@chelsio.com cxgbi_skcb_flags(skb) = 0; 1034e27d6169Skxie@chelsio.com 10357b36b6e0Skxie@chelsio.com skb_reset_transport_header(skb); 10367b36b6e0Skxie@chelsio.com __skb_pull(skb, sizeof(*cpl)); 10377b36b6e0Skxie@chelsio.com __pskb_trim(skb, ntohs(cpl->len)); 10387b36b6e0Skxie@chelsio.com 10397b36b6e0Skxie@chelsio.com if (!csk->skb_ulp_lhdr) { 10407b36b6e0Skxie@chelsio.com unsigned char *bhs; 10413bd3e8bfSKaren Xie unsigned int hlen, dlen, plen; 10427b36b6e0Skxie@chelsio.com 10437b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 10447b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p header.\n", 10457b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb); 10467b36b6e0Skxie@chelsio.com csk->skb_ulp_lhdr = skb; 1047e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(skb, SKCBF_RX_HDR); 10487b36b6e0Skxie@chelsio.com 1049e27d6169Skxie@chelsio.com if (cxgbi_skcb_tcp_seq(skb) != csk->rcv_nxt) { 10507b36b6e0Skxie@chelsio.com pr_info("tid %u, CPL_ISCSI_HDR, bad seq, 0x%x/0x%x.\n", 1051e27d6169Skxie@chelsio.com csk->tid, cxgbi_skcb_tcp_seq(skb), 10527b36b6e0Skxie@chelsio.com csk->rcv_nxt); 10537b36b6e0Skxie@chelsio.com goto abort_conn; 10547b36b6e0Skxie@chelsio.com } 10557b36b6e0Skxie@chelsio.com 1056e27d6169Skxie@chelsio.com bhs = skb->data; 10577b36b6e0Skxie@chelsio.com hlen = ntohs(cpl->len); 10587b36b6e0Skxie@chelsio.com dlen = ntohl(*(unsigned int *)(bhs + 4)) & 0xFFFFFF; 10597b36b6e0Skxie@chelsio.com 10603bd3e8bfSKaren Xie plen = ISCSI_PDU_LEN(pdu_len_ddp); 10613bd3e8bfSKaren Xie if (is_t4(lldi->adapter_type)) 10623bd3e8bfSKaren Xie plen -= 40; 10633bd3e8bfSKaren Xie 10643bd3e8bfSKaren Xie if ((hlen + dlen) != plen) { 10657b36b6e0Skxie@chelsio.com pr_info("tid 0x%x, CPL_ISCSI_HDR, pdu len " 10667b36b6e0Skxie@chelsio.com "mismatch %u != %u + %u, seq 0x%x.\n", 10673bd3e8bfSKaren Xie csk->tid, plen, hlen, dlen, 10683bd3e8bfSKaren Xie cxgbi_skcb_tcp_seq(skb)); 10697b36b6e0Skxie@chelsio.com goto abort_conn; 10707b36b6e0Skxie@chelsio.com } 10717b36b6e0Skxie@chelsio.com 10727b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_pdulen(skb) = (hlen + dlen + 3) & (~0x3); 10737b36b6e0Skxie@chelsio.com if (dlen) 10747b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_pdulen(skb) += csk->dcrc_len; 10757b36b6e0Skxie@chelsio.com csk->rcv_nxt += cxgbi_skcb_rx_pdulen(skb); 10767b36b6e0Skxie@chelsio.com 10777b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 10787b36b6e0Skxie@chelsio.com "csk 0x%p, skb 0x%p, 0x%x,%u+%u,0x%x,0x%x.\n", 10797b36b6e0Skxie@chelsio.com csk, skb, *bhs, hlen, dlen, 10807b36b6e0Skxie@chelsio.com ntohl(*((unsigned int *)(bhs + 16))), 10817b36b6e0Skxie@chelsio.com ntohl(*((unsigned int *)(bhs + 24)))); 10827b36b6e0Skxie@chelsio.com 10837b36b6e0Skxie@chelsio.com } else { 1084e27d6169Skxie@chelsio.com struct sk_buff *lskb = csk->skb_ulp_lhdr; 10857b36b6e0Skxie@chelsio.com 1086e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA); 10877b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 10887b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, skb 0x%p data, 0x%p.\n", 10897b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, skb, lskb); 10907b36b6e0Skxie@chelsio.com } 10917b36b6e0Skxie@chelsio.com 10927b36b6e0Skxie@chelsio.com __skb_queue_tail(&csk->receive_queue, skb); 10937b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 10947b36b6e0Skxie@chelsio.com return; 10957b36b6e0Skxie@chelsio.com 10967b36b6e0Skxie@chelsio.com abort_conn: 10977b36b6e0Skxie@chelsio.com send_abort_req(csk); 10987b36b6e0Skxie@chelsio.com discard: 10997b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 11007b36b6e0Skxie@chelsio.com rel_skb: 11017b36b6e0Skxie@chelsio.com __kfree_skb(skb); 11027b36b6e0Skxie@chelsio.com } 11037b36b6e0Skxie@chelsio.com 11047b36b6e0Skxie@chelsio.com static void do_rx_data_ddp(struct cxgbi_device *cdev, 11057b36b6e0Skxie@chelsio.com struct sk_buff *skb) 11067b36b6e0Skxie@chelsio.com { 11077b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 11087b36b6e0Skxie@chelsio.com struct sk_buff *lskb; 11097b36b6e0Skxie@chelsio.com struct cpl_rx_data_ddp *rpl = (struct cpl_rx_data_ddp *)skb->data; 11107b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 11117b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 11127b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 11137b36b6e0Skxie@chelsio.com unsigned int status = ntohl(rpl->ddpvld); 11147b36b6e0Skxie@chelsio.com 11157b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 11167b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 11177b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 11187b36b6e0Skxie@chelsio.com goto rel_skb; 11197b36b6e0Skxie@chelsio.com } 11207b36b6e0Skxie@chelsio.com 11217b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 11227b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, skb 0x%p,0x%x, lhdr 0x%p.\n", 11237b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, skb, status, csk->skb_ulp_lhdr); 11247b36b6e0Skxie@chelsio.com 11257b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 11267b36b6e0Skxie@chelsio.com 11277b36b6e0Skxie@chelsio.com if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) { 11287b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 11297b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, bad state.\n", 11307b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 11317b36b6e0Skxie@chelsio.com if (csk->state != CTP_ABORTING) 11327b36b6e0Skxie@chelsio.com goto abort_conn; 11337b36b6e0Skxie@chelsio.com else 11347b36b6e0Skxie@chelsio.com goto discard; 11357b36b6e0Skxie@chelsio.com } 11367b36b6e0Skxie@chelsio.com 11377b36b6e0Skxie@chelsio.com if (!csk->skb_ulp_lhdr) { 11387b36b6e0Skxie@chelsio.com pr_err("tid 0x%x, rcv RX_DATA_DDP w/o pdu bhs.\n", csk->tid); 11397b36b6e0Skxie@chelsio.com goto abort_conn; 11407b36b6e0Skxie@chelsio.com } 11417b36b6e0Skxie@chelsio.com 11427b36b6e0Skxie@chelsio.com lskb = csk->skb_ulp_lhdr; 11437b36b6e0Skxie@chelsio.com csk->skb_ulp_lhdr = NULL; 11447b36b6e0Skxie@chelsio.com 11457b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_ddigest(lskb) = ntohl(rpl->ulp_crc); 11467b36b6e0Skxie@chelsio.com 11477b36b6e0Skxie@chelsio.com if (ntohs(rpl->len) != cxgbi_skcb_rx_pdulen(lskb)) 11487b36b6e0Skxie@chelsio.com pr_info("tid 0x%x, RX_DATA_DDP pdulen %u != %u.\n", 11497b36b6e0Skxie@chelsio.com csk->tid, ntohs(rpl->len), cxgbi_skcb_rx_pdulen(lskb)); 11507b36b6e0Skxie@chelsio.com 11517b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_HCRC_SHIFT)) { 1152e27d6169Skxie@chelsio.com pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, hcrc bad 0x%lx.\n", 1153e27d6169Skxie@chelsio.com csk, lskb, status, cxgbi_skcb_flags(lskb)); 11547b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_HCRC_ERR); 11557b36b6e0Skxie@chelsio.com } 11567b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_DCRC_SHIFT)) { 1157e27d6169Skxie@chelsio.com pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, dcrc bad 0x%lx.\n", 1158e27d6169Skxie@chelsio.com csk, lskb, status, cxgbi_skcb_flags(lskb)); 11597b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DCRC_ERR); 11607b36b6e0Skxie@chelsio.com } 11617b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_PAD_SHIFT)) { 11627b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 11637b36b6e0Skxie@chelsio.com "csk 0x%p, lhdr 0x%p, status 0x%x, pad bad.\n", 11647b36b6e0Skxie@chelsio.com csk, lskb, status); 11657b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_PAD_ERR); 11667b36b6e0Skxie@chelsio.com } 11677b36b6e0Skxie@chelsio.com if ((status & (1 << CPL_RX_DDP_STATUS_DDP_SHIFT)) && 11687b36b6e0Skxie@chelsio.com !cxgbi_skcb_test_flag(lskb, SKCBF_RX_DATA)) { 11697b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 11707b36b6e0Skxie@chelsio.com "csk 0x%p, lhdr 0x%p, 0x%x, data ddp'ed.\n", 11717b36b6e0Skxie@chelsio.com csk, lskb, status); 11727b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA_DDPD); 11737b36b6e0Skxie@chelsio.com } 11747b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 11757b36b6e0Skxie@chelsio.com "csk 0x%p, lskb 0x%p, f 0x%lx.\n", 11767b36b6e0Skxie@chelsio.com csk, lskb, cxgbi_skcb_flags(lskb)); 11777b36b6e0Skxie@chelsio.com 1178e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_STATUS); 11797b36b6e0Skxie@chelsio.com cxgbi_conn_pdu_ready(csk); 11807b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 11817b36b6e0Skxie@chelsio.com goto rel_skb; 11827b36b6e0Skxie@chelsio.com 11837b36b6e0Skxie@chelsio.com abort_conn: 11847b36b6e0Skxie@chelsio.com send_abort_req(csk); 11857b36b6e0Skxie@chelsio.com discard: 11867b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 11877b36b6e0Skxie@chelsio.com rel_skb: 11887b36b6e0Skxie@chelsio.com __kfree_skb(skb); 11897b36b6e0Skxie@chelsio.com } 11907b36b6e0Skxie@chelsio.com 11917b36b6e0Skxie@chelsio.com static void do_fw4_ack(struct cxgbi_device *cdev, struct sk_buff *skb) 11927b36b6e0Skxie@chelsio.com { 11937b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 11947b36b6e0Skxie@chelsio.com struct cpl_fw4_ack *rpl = (struct cpl_fw4_ack *)skb->data; 11957b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 11967b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 11977b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 11987b36b6e0Skxie@chelsio.com 11997b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 12007b36b6e0Skxie@chelsio.com if (unlikely(!csk)) 12017b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 12027b36b6e0Skxie@chelsio.com else { 12037b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 12047b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 12057b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 12067b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_wr_ack(csk, rpl->credits, ntohl(rpl->snd_una), 12077b36b6e0Skxie@chelsio.com rpl->seq_vld); 12087b36b6e0Skxie@chelsio.com } 12097b36b6e0Skxie@chelsio.com __kfree_skb(skb); 12107b36b6e0Skxie@chelsio.com } 12117b36b6e0Skxie@chelsio.com 12127b36b6e0Skxie@chelsio.com static void do_set_tcb_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 12137b36b6e0Skxie@chelsio.com { 12147b36b6e0Skxie@chelsio.com struct cpl_set_tcb_rpl *rpl = (struct cpl_set_tcb_rpl *)skb->data; 12157b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 12167b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 12177b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 12187b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 12197b36b6e0Skxie@chelsio.com 12207b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 12217b36b6e0Skxie@chelsio.com if (!csk) 12227b36b6e0Skxie@chelsio.com pr_err("can't find conn. for tid %u.\n", tid); 12237b36b6e0Skxie@chelsio.com 12247b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 12257b36b6e0Skxie@chelsio.com "csk 0x%p,%u,%lx,%u, status 0x%x.\n", 12267b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, rpl->status); 12277b36b6e0Skxie@chelsio.com 12287b36b6e0Skxie@chelsio.com if (rpl->status != CPL_ERR_NONE) 12297b36b6e0Skxie@chelsio.com pr_err("csk 0x%p,%u, SET_TCB_RPL status %u.\n", 12307b36b6e0Skxie@chelsio.com csk, tid, rpl->status); 12317b36b6e0Skxie@chelsio.com 12327b36b6e0Skxie@chelsio.com __kfree_skb(skb); 12337b36b6e0Skxie@chelsio.com } 12347b36b6e0Skxie@chelsio.com 12357b36b6e0Skxie@chelsio.com static int alloc_cpls(struct cxgbi_sock *csk) 12367b36b6e0Skxie@chelsio.com { 123724d3f95aSkxie@chelsio.com csk->cpl_close = alloc_wr(sizeof(struct cpl_close_con_req), 123824d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 12397b36b6e0Skxie@chelsio.com if (!csk->cpl_close) 12407b36b6e0Skxie@chelsio.com return -ENOMEM; 12417b36b6e0Skxie@chelsio.com 124224d3f95aSkxie@chelsio.com csk->cpl_abort_req = alloc_wr(sizeof(struct cpl_abort_req), 124324d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 12447b36b6e0Skxie@chelsio.com if (!csk->cpl_abort_req) 12457b36b6e0Skxie@chelsio.com goto free_cpls; 12467b36b6e0Skxie@chelsio.com 124724d3f95aSkxie@chelsio.com csk->cpl_abort_rpl = alloc_wr(sizeof(struct cpl_abort_rpl), 124824d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 12497b36b6e0Skxie@chelsio.com if (!csk->cpl_abort_rpl) 12507b36b6e0Skxie@chelsio.com goto free_cpls; 12517b36b6e0Skxie@chelsio.com return 0; 12527b36b6e0Skxie@chelsio.com 12537b36b6e0Skxie@chelsio.com free_cpls: 12547b36b6e0Skxie@chelsio.com cxgbi_sock_free_cpl_skbs(csk); 12557b36b6e0Skxie@chelsio.com return -ENOMEM; 12567b36b6e0Skxie@chelsio.com } 12577b36b6e0Skxie@chelsio.com 12587b36b6e0Skxie@chelsio.com static inline void l2t_put(struct cxgbi_sock *csk) 12597b36b6e0Skxie@chelsio.com { 12607b36b6e0Skxie@chelsio.com if (csk->l2t) { 12617b36b6e0Skxie@chelsio.com cxgb4_l2t_release(csk->l2t); 12627b36b6e0Skxie@chelsio.com csk->l2t = NULL; 12637b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 12647b36b6e0Skxie@chelsio.com } 12657b36b6e0Skxie@chelsio.com } 12667b36b6e0Skxie@chelsio.com 12677b36b6e0Skxie@chelsio.com static void release_offload_resources(struct cxgbi_sock *csk) 12687b36b6e0Skxie@chelsio.com { 12697b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi; 12707b36b6e0Skxie@chelsio.com 12717b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 12727b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 12737b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 12747b36b6e0Skxie@chelsio.com 12757b36b6e0Skxie@chelsio.com cxgbi_sock_free_cpl_skbs(csk); 12767b36b6e0Skxie@chelsio.com if (csk->wr_cred != csk->wr_max_cred) { 12777b36b6e0Skxie@chelsio.com cxgbi_sock_purge_wr_queue(csk); 12787b36b6e0Skxie@chelsio.com cxgbi_sock_reset_wr_list(csk); 12797b36b6e0Skxie@chelsio.com } 12807b36b6e0Skxie@chelsio.com 12817b36b6e0Skxie@chelsio.com l2t_put(csk); 12827b36b6e0Skxie@chelsio.com if (cxgbi_sock_flag(csk, CTPF_HAS_ATID)) 12837b36b6e0Skxie@chelsio.com free_atid(csk); 12847b36b6e0Skxie@chelsio.com else if (cxgbi_sock_flag(csk, CTPF_HAS_TID)) { 12857b36b6e0Skxie@chelsio.com lldi = cxgbi_cdev_priv(csk->cdev); 12867b36b6e0Skxie@chelsio.com cxgb4_remove_tid(lldi->tids, 0, csk->tid); 12877b36b6e0Skxie@chelsio.com cxgbi_sock_clear_flag(csk, CTPF_HAS_TID); 12887b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 12897b36b6e0Skxie@chelsio.com } 12907b36b6e0Skxie@chelsio.com csk->dst = NULL; 12917b36b6e0Skxie@chelsio.com csk->cdev = NULL; 12927b36b6e0Skxie@chelsio.com } 12937b36b6e0Skxie@chelsio.com 12947b36b6e0Skxie@chelsio.com static int init_act_open(struct cxgbi_sock *csk) 12957b36b6e0Skxie@chelsio.com { 12967b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = csk->cdev; 12977b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 12987b36b6e0Skxie@chelsio.com struct net_device *ndev = cdev->ports[csk->port_id]; 12997b36b6e0Skxie@chelsio.com struct sk_buff *skb = NULL; 1300759a0cc5SAnish Bhatt struct neighbour *n = NULL; 1301759a0cc5SAnish Bhatt void *daddr; 13027b36b6e0Skxie@chelsio.com unsigned int step; 1303759a0cc5SAnish Bhatt unsigned int size, size6; 1304759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 13057b36b6e0Skxie@chelsio.com 13067b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 13077b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 13087b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 13097b36b6e0Skxie@chelsio.com 1310759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 1311759a0cc5SAnish Bhatt daddr = &csk->daddr.sin_addr.s_addr; 1312e81fbf6cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1313e81fbf6cSAnish Bhatt else if (csk->csk_family == AF_INET6) 1314759a0cc5SAnish Bhatt daddr = &csk->daddr6.sin6_addr; 1315e81fbf6cSAnish Bhatt #endif 1316e81fbf6cSAnish Bhatt else { 1317e81fbf6cSAnish Bhatt pr_err("address family 0x%x not supported\n", csk->csk_family); 1318e81fbf6cSAnish Bhatt goto rel_resource; 1319e81fbf6cSAnish Bhatt } 1320759a0cc5SAnish Bhatt 1321759a0cc5SAnish Bhatt n = dst_neigh_lookup(csk->dst, daddr); 1322759a0cc5SAnish Bhatt 1323759a0cc5SAnish Bhatt if (!n) { 1324759a0cc5SAnish Bhatt pr_err("%s, can't get neighbour of csk->dst.\n", ndev->name); 1325759a0cc5SAnish Bhatt goto rel_resource; 1326759a0cc5SAnish Bhatt } 1327759a0cc5SAnish Bhatt 13287b36b6e0Skxie@chelsio.com csk->atid = cxgb4_alloc_atid(lldi->tids, csk); 13297b36b6e0Skxie@chelsio.com if (csk->atid < 0) { 13307b36b6e0Skxie@chelsio.com pr_err("%s, NO atid available.\n", ndev->name); 13317b36b6e0Skxie@chelsio.com return -EINVAL; 13327b36b6e0Skxie@chelsio.com } 13337b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_HAS_ATID); 13347b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 13357b36b6e0Skxie@chelsio.com 133651e059bdSDavid Miller csk->l2t = cxgb4_l2t_get(lldi->l2t, n, ndev, 0); 13377b36b6e0Skxie@chelsio.com if (!csk->l2t) { 13387b36b6e0Skxie@chelsio.com pr_err("%s, cannot alloc l2t.\n", ndev->name); 13397b36b6e0Skxie@chelsio.com goto rel_resource; 13407b36b6e0Skxie@chelsio.com } 13417b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 13427b36b6e0Skxie@chelsio.com 1343759a0cc5SAnish Bhatt if (t4) { 1344759a0cc5SAnish Bhatt size = sizeof(struct cpl_act_open_req); 1345759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_act_open_req6); 1346759a0cc5SAnish Bhatt } else { 1347759a0cc5SAnish Bhatt size = sizeof(struct cpl_t5_act_open_req); 1348759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_t5_act_open_req6); 1349759a0cc5SAnish Bhatt } 1350759a0cc5SAnish Bhatt 1351759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 1352759a0cc5SAnish Bhatt skb = alloc_wr(size, 0, GFP_NOIO); 1353f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1354759a0cc5SAnish Bhatt else 1355759a0cc5SAnish Bhatt skb = alloc_wr(size6, 0, GFP_NOIO); 1356f42bb57cSAnish Bhatt #endif 1357759a0cc5SAnish Bhatt 13587b36b6e0Skxie@chelsio.com if (!skb) 13597b36b6e0Skxie@chelsio.com goto rel_resource; 13607b36b6e0Skxie@chelsio.com skb->sk = (struct sock *)csk; 13617b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, cxgbi_sock_act_open_req_arp_failure); 13627b36b6e0Skxie@chelsio.com 13637b36b6e0Skxie@chelsio.com if (!csk->mtu) 13647b36b6e0Skxie@chelsio.com csk->mtu = dst_mtu(csk->dst); 13657b36b6e0Skxie@chelsio.com cxgb4_best_mtu(lldi->mtus, csk->mtu, &csk->mss_idx); 13667b36b6e0Skxie@chelsio.com csk->tx_chan = cxgb4_port_chan(ndev); 13677b36b6e0Skxie@chelsio.com /* SMT two entries per row */ 13687b36b6e0Skxie@chelsio.com csk->smac_idx = ((cxgb4_port_viid(ndev) & 0x7F)) << 1; 13697b36b6e0Skxie@chelsio.com step = lldi->ntxq / lldi->nchan; 13707b36b6e0Skxie@chelsio.com csk->txq_idx = cxgb4_port_idx(ndev) * step; 13717b36b6e0Skxie@chelsio.com step = lldi->nrxq / lldi->nchan; 13727b36b6e0Skxie@chelsio.com csk->rss_qid = lldi->rxq_ids[cxgb4_port_idx(ndev) * step]; 1373759a0cc5SAnish Bhatt csk->wr_cred = lldi->wr_cred - 1374759a0cc5SAnish Bhatt DIV_ROUND_UP(sizeof(struct cpl_abort_req), 16); 1375759a0cc5SAnish Bhatt csk->wr_max_cred = csk->wr_cred; 13767b36b6e0Skxie@chelsio.com csk->wr_una_cred = 0; 13777b36b6e0Skxie@chelsio.com cxgbi_sock_reset_wr_list(csk); 13787b36b6e0Skxie@chelsio.com csk->err = 0; 13797b36b6e0Skxie@chelsio.com 1380759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u,%u,%u, mtu %u,%u, smac %u.\n", 1381759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), csk, csk->state, 1382759a0cc5SAnish Bhatt csk->flags, csk->tx_chan, csk->txq_idx, csk->rss_qid, 1383759a0cc5SAnish Bhatt csk->mtu, csk->mss_idx, csk->smac_idx); 1384759a0cc5SAnish Bhatt 1385759a0cc5SAnish Bhatt /* must wait for either a act_open_rpl or act_open_establish */ 1386759a0cc5SAnish Bhatt try_module_get(THIS_MODULE); 13877b36b6e0Skxie@chelsio.com cxgbi_sock_set_state(csk, CTP_ACTIVE_OPEN); 1388759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 13897b36b6e0Skxie@chelsio.com send_act_open_req(csk, skb, csk->l2t); 1390f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1391759a0cc5SAnish Bhatt else 1392759a0cc5SAnish Bhatt send_act_open_req6(csk, skb, csk->l2t); 1393f42bb57cSAnish Bhatt #endif 1394c4737377SDavid S. Miller neigh_release(n); 1395759a0cc5SAnish Bhatt 13967b36b6e0Skxie@chelsio.com return 0; 13977b36b6e0Skxie@chelsio.com 13987b36b6e0Skxie@chelsio.com rel_resource: 1399c4737377SDavid S. Miller if (n) 1400c4737377SDavid S. Miller neigh_release(n); 14017b36b6e0Skxie@chelsio.com if (skb) 14027b36b6e0Skxie@chelsio.com __kfree_skb(skb); 14037b36b6e0Skxie@chelsio.com return -EINVAL; 14047b36b6e0Skxie@chelsio.com } 14057b36b6e0Skxie@chelsio.com 14067b36b6e0Skxie@chelsio.com cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = { 14077b36b6e0Skxie@chelsio.com [CPL_ACT_ESTABLISH] = do_act_establish, 14087b36b6e0Skxie@chelsio.com [CPL_ACT_OPEN_RPL] = do_act_open_rpl, 14097b36b6e0Skxie@chelsio.com [CPL_PEER_CLOSE] = do_peer_close, 14107b36b6e0Skxie@chelsio.com [CPL_ABORT_REQ_RSS] = do_abort_req_rss, 14117b36b6e0Skxie@chelsio.com [CPL_ABORT_RPL_RSS] = do_abort_rpl_rss, 14127b36b6e0Skxie@chelsio.com [CPL_CLOSE_CON_RPL] = do_close_con_rpl, 14137b36b6e0Skxie@chelsio.com [CPL_FW4_ACK] = do_fw4_ack, 14147b36b6e0Skxie@chelsio.com [CPL_ISCSI_HDR] = do_rx_iscsi_hdr, 14153bd3e8bfSKaren Xie [CPL_ISCSI_DATA] = do_rx_iscsi_hdr, 14167b36b6e0Skxie@chelsio.com [CPL_SET_TCB_RPL] = do_set_tcb_rpl, 14177b36b6e0Skxie@chelsio.com [CPL_RX_DATA_DDP] = do_rx_data_ddp, 14183bd3e8bfSKaren Xie [CPL_RX_ISCSI_DDP] = do_rx_data_ddp, 14197b36b6e0Skxie@chelsio.com }; 14207b36b6e0Skxie@chelsio.com 14217b36b6e0Skxie@chelsio.com int cxgb4i_ofld_init(struct cxgbi_device *cdev) 14227b36b6e0Skxie@chelsio.com { 14237b36b6e0Skxie@chelsio.com int rc; 14247b36b6e0Skxie@chelsio.com 14257b36b6e0Skxie@chelsio.com if (cxgb4i_max_connect > CXGB4I_MAX_CONN) 14267b36b6e0Skxie@chelsio.com cxgb4i_max_connect = CXGB4I_MAX_CONN; 14277b36b6e0Skxie@chelsio.com 14287b36b6e0Skxie@chelsio.com rc = cxgbi_device_portmap_create(cdev, cxgb4i_sport_base, 14297b36b6e0Skxie@chelsio.com cxgb4i_max_connect); 14307b36b6e0Skxie@chelsio.com if (rc < 0) 14317b36b6e0Skxie@chelsio.com return rc; 14327b36b6e0Skxie@chelsio.com 14337b36b6e0Skxie@chelsio.com cdev->csk_release_offload_resources = release_offload_resources; 14347b36b6e0Skxie@chelsio.com cdev->csk_push_tx_frames = push_tx_frames; 14357b36b6e0Skxie@chelsio.com cdev->csk_send_abort_req = send_abort_req; 14367b36b6e0Skxie@chelsio.com cdev->csk_send_close_req = send_close_req; 14377b36b6e0Skxie@chelsio.com cdev->csk_send_rx_credits = send_rx_credits; 14387b36b6e0Skxie@chelsio.com cdev->csk_alloc_cpls = alloc_cpls; 14397b36b6e0Skxie@chelsio.com cdev->csk_init_act_open = init_act_open; 14407b36b6e0Skxie@chelsio.com 14417b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, offload up, added.\n", cdev); 14427b36b6e0Skxie@chelsio.com return 0; 14437b36b6e0Skxie@chelsio.com } 14447b36b6e0Skxie@chelsio.com 14457b36b6e0Skxie@chelsio.com /* 14467b36b6e0Skxie@chelsio.com * functions to program the pagepod in h/w 14477b36b6e0Skxie@chelsio.com */ 1448e27d6169Skxie@chelsio.com #define ULPMEM_IDATA_MAX_NPPODS 4 /* 256/PPOD_SIZE */ 14493bd3e8bfSKaren Xie static inline void ulp_mem_io_set_hdr(struct cxgb4_lld_info *lldi, 14503bd3e8bfSKaren Xie struct ulp_mem_io *req, 1451e27d6169Skxie@chelsio.com unsigned int wr_len, unsigned int dlen, 1452e27d6169Skxie@chelsio.com unsigned int pm_addr) 14537b36b6e0Skxie@chelsio.com { 1454e27d6169Skxie@chelsio.com struct ulptx_idata *idata = (struct ulptx_idata *)(req + 1); 14557b36b6e0Skxie@chelsio.com 14567b36b6e0Skxie@chelsio.com INIT_ULPTX_WR(req, wr_len, 0, 0); 14573bd3e8bfSKaren Xie if (is_t4(lldi->adapter_type)) 1458d7990b0cSAnish Bhatt req->cmd = htonl(ULPTX_CMD_V(ULP_TX_MEM_WRITE) | 1459d7990b0cSAnish Bhatt (ULP_MEMIO_ORDER_F)); 14603bd3e8bfSKaren Xie else 1461d7990b0cSAnish Bhatt req->cmd = htonl(ULPTX_CMD_V(ULP_TX_MEM_WRITE) | 1462d7990b0cSAnish Bhatt (T5_ULP_MEMIO_IMM_F)); 1463d7990b0cSAnish Bhatt req->dlen = htonl(ULP_MEMIO_DATA_LEN_V(dlen >> 5)); 1464d7990b0cSAnish Bhatt req->lock_addr = htonl(ULP_MEMIO_ADDR_V(pm_addr >> 5)); 14657b36b6e0Skxie@chelsio.com req->len16 = htonl(DIV_ROUND_UP(wr_len - sizeof(req->wr), 16)); 1466e27d6169Skxie@chelsio.com 1467d7990b0cSAnish Bhatt idata->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_IMM)); 1468e27d6169Skxie@chelsio.com idata->len = htonl(dlen); 14697b36b6e0Skxie@chelsio.com } 14707b36b6e0Skxie@chelsio.com 1471e27d6169Skxie@chelsio.com static int ddp_ppod_write_idata(struct cxgbi_device *cdev, unsigned int port_id, 14727b36b6e0Skxie@chelsio.com struct cxgbi_pagepod_hdr *hdr, unsigned int idx, 14737b36b6e0Skxie@chelsio.com unsigned int npods, 14747b36b6e0Skxie@chelsio.com struct cxgbi_gather_list *gl, 14757b36b6e0Skxie@chelsio.com unsigned int gl_pidx) 14767b36b6e0Skxie@chelsio.com { 14777b36b6e0Skxie@chelsio.com struct cxgbi_ddp_info *ddp = cdev->ddp; 14783bd3e8bfSKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 14797b36b6e0Skxie@chelsio.com struct sk_buff *skb; 14807b36b6e0Skxie@chelsio.com struct ulp_mem_io *req; 1481e27d6169Skxie@chelsio.com struct ulptx_idata *idata; 14827b36b6e0Skxie@chelsio.com struct cxgbi_pagepod *ppod; 1483e27d6169Skxie@chelsio.com unsigned int pm_addr = idx * PPOD_SIZE + ddp->llimit; 1484e27d6169Skxie@chelsio.com unsigned int dlen = PPOD_SIZE * npods; 1485e27d6169Skxie@chelsio.com unsigned int wr_len = roundup(sizeof(struct ulp_mem_io) + 1486e27d6169Skxie@chelsio.com sizeof(struct ulptx_idata) + dlen, 16); 14877b36b6e0Skxie@chelsio.com unsigned int i; 14887b36b6e0Skxie@chelsio.com 1489e27d6169Skxie@chelsio.com skb = alloc_wr(wr_len, 0, GFP_ATOMIC); 14907b36b6e0Skxie@chelsio.com if (!skb) { 14917b36b6e0Skxie@chelsio.com pr_err("cdev 0x%p, idx %u, npods %u, OOM.\n", 14927b36b6e0Skxie@chelsio.com cdev, idx, npods); 14937b36b6e0Skxie@chelsio.com return -ENOMEM; 14947b36b6e0Skxie@chelsio.com } 14957b36b6e0Skxie@chelsio.com req = (struct ulp_mem_io *)skb->head; 14967b36b6e0Skxie@chelsio.com set_queue(skb, CPL_PRIORITY_CONTROL, NULL); 14977b36b6e0Skxie@chelsio.com 14983bd3e8bfSKaren Xie ulp_mem_io_set_hdr(lldi, req, wr_len, dlen, pm_addr); 1499e27d6169Skxie@chelsio.com idata = (struct ulptx_idata *)(req + 1); 1500e27d6169Skxie@chelsio.com ppod = (struct cxgbi_pagepod *)(idata + 1); 15017b36b6e0Skxie@chelsio.com 15027b36b6e0Skxie@chelsio.com for (i = 0; i < npods; i++, ppod++, gl_pidx += PPOD_PAGES_MAX) { 15037b36b6e0Skxie@chelsio.com if (!hdr && !gl) 15047b36b6e0Skxie@chelsio.com cxgbi_ddp_ppod_clear(ppod); 15057b36b6e0Skxie@chelsio.com else 15067b36b6e0Skxie@chelsio.com cxgbi_ddp_ppod_set(ppod, hdr, gl, gl_pidx); 15077b36b6e0Skxie@chelsio.com } 15087b36b6e0Skxie@chelsio.com 15097b36b6e0Skxie@chelsio.com cxgb4_ofld_send(cdev->ports[port_id], skb); 15107b36b6e0Skxie@chelsio.com return 0; 15117b36b6e0Skxie@chelsio.com } 15127b36b6e0Skxie@chelsio.com 15137b36b6e0Skxie@chelsio.com static int ddp_set_map(struct cxgbi_sock *csk, struct cxgbi_pagepod_hdr *hdr, 15147b36b6e0Skxie@chelsio.com unsigned int idx, unsigned int npods, 15157b36b6e0Skxie@chelsio.com struct cxgbi_gather_list *gl) 15167b36b6e0Skxie@chelsio.com { 15177b36b6e0Skxie@chelsio.com unsigned int i, cnt; 15187b36b6e0Skxie@chelsio.com int err = 0; 15197b36b6e0Skxie@chelsio.com 15207b36b6e0Skxie@chelsio.com for (i = 0; i < npods; i += cnt, idx += cnt) { 15217b36b6e0Skxie@chelsio.com cnt = npods - i; 1522e27d6169Skxie@chelsio.com if (cnt > ULPMEM_IDATA_MAX_NPPODS) 1523e27d6169Skxie@chelsio.com cnt = ULPMEM_IDATA_MAX_NPPODS; 1524e27d6169Skxie@chelsio.com err = ddp_ppod_write_idata(csk->cdev, csk->port_id, hdr, 15257b36b6e0Skxie@chelsio.com idx, cnt, gl, 4 * i); 15267b36b6e0Skxie@chelsio.com if (err < 0) 15277b36b6e0Skxie@chelsio.com break; 15287b36b6e0Skxie@chelsio.com } 15297b36b6e0Skxie@chelsio.com return err; 15307b36b6e0Skxie@chelsio.com } 15317b36b6e0Skxie@chelsio.com 15327b36b6e0Skxie@chelsio.com static void ddp_clear_map(struct cxgbi_hba *chba, unsigned int tag, 15337b36b6e0Skxie@chelsio.com unsigned int idx, unsigned int npods) 15347b36b6e0Skxie@chelsio.com { 15357b36b6e0Skxie@chelsio.com unsigned int i, cnt; 15367b36b6e0Skxie@chelsio.com int err; 15377b36b6e0Skxie@chelsio.com 15387b36b6e0Skxie@chelsio.com for (i = 0; i < npods; i += cnt, idx += cnt) { 15397b36b6e0Skxie@chelsio.com cnt = npods - i; 1540e27d6169Skxie@chelsio.com if (cnt > ULPMEM_IDATA_MAX_NPPODS) 1541e27d6169Skxie@chelsio.com cnt = ULPMEM_IDATA_MAX_NPPODS; 1542e27d6169Skxie@chelsio.com err = ddp_ppod_write_idata(chba->cdev, chba->port_id, NULL, 15437b36b6e0Skxie@chelsio.com idx, cnt, NULL, 0); 15447b36b6e0Skxie@chelsio.com if (err < 0) 15457b36b6e0Skxie@chelsio.com break; 15467b36b6e0Skxie@chelsio.com } 15477b36b6e0Skxie@chelsio.com } 15487b36b6e0Skxie@chelsio.com 15497b36b6e0Skxie@chelsio.com static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk, unsigned int tid, 15507b36b6e0Skxie@chelsio.com int pg_idx, bool reply) 15517b36b6e0Skxie@chelsio.com { 15527b36b6e0Skxie@chelsio.com struct sk_buff *skb; 15537b36b6e0Skxie@chelsio.com struct cpl_set_tcb_field *req; 15547b36b6e0Skxie@chelsio.com 1555e27d6169Skxie@chelsio.com if (!pg_idx || pg_idx >= DDP_PGIDX_MAX) 15567b36b6e0Skxie@chelsio.com return 0; 15577b36b6e0Skxie@chelsio.com 155824d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL); 15597b36b6e0Skxie@chelsio.com if (!skb) 15607b36b6e0Skxie@chelsio.com return -ENOMEM; 15617b36b6e0Skxie@chelsio.com 1562e27d6169Skxie@chelsio.com /* set up ulp page size */ 15637b36b6e0Skxie@chelsio.com req = (struct cpl_set_tcb_field *)skb->head; 15647b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 15657b36b6e0Skxie@chelsio.com OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, csk->tid)); 15667b36b6e0Skxie@chelsio.com req->reply_ctrl = htons(NO_REPLY(reply) | QUEUENO(csk->rss_qid)); 1567e27d6169Skxie@chelsio.com req->word_cookie = htons(0); 1568e27d6169Skxie@chelsio.com req->mask = cpu_to_be64(0x3 << 8); 1569e27d6169Skxie@chelsio.com req->val = cpu_to_be64(pg_idx << 8); 15707b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id); 15717b36b6e0Skxie@chelsio.com 15727b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 15737b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, pg_idx %u.\n", csk, csk->tid, pg_idx); 15747b36b6e0Skxie@chelsio.com 15757b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 15767b36b6e0Skxie@chelsio.com return 0; 15777b36b6e0Skxie@chelsio.com } 15787b36b6e0Skxie@chelsio.com 15797b36b6e0Skxie@chelsio.com static int ddp_setup_conn_digest(struct cxgbi_sock *csk, unsigned int tid, 15807b36b6e0Skxie@chelsio.com int hcrc, int dcrc, int reply) 15817b36b6e0Skxie@chelsio.com { 15827b36b6e0Skxie@chelsio.com struct sk_buff *skb; 15837b36b6e0Skxie@chelsio.com struct cpl_set_tcb_field *req; 15847b36b6e0Skxie@chelsio.com 1585e27d6169Skxie@chelsio.com if (!hcrc && !dcrc) 1586e27d6169Skxie@chelsio.com return 0; 15877b36b6e0Skxie@chelsio.com 158824d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL); 15897b36b6e0Skxie@chelsio.com if (!skb) 15907b36b6e0Skxie@chelsio.com return -ENOMEM; 15917b36b6e0Skxie@chelsio.com 15927b36b6e0Skxie@chelsio.com csk->hcrc_len = (hcrc ? 4 : 0); 15937b36b6e0Skxie@chelsio.com csk->dcrc_len = (dcrc ? 4 : 0); 1594e27d6169Skxie@chelsio.com /* set up ulp submode */ 15957b36b6e0Skxie@chelsio.com req = (struct cpl_set_tcb_field *)skb->head; 15967b36b6e0Skxie@chelsio.com INIT_TP_WR(req, tid); 15977b36b6e0Skxie@chelsio.com OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid)); 15987b36b6e0Skxie@chelsio.com req->reply_ctrl = htons(NO_REPLY(reply) | QUEUENO(csk->rss_qid)); 1599e27d6169Skxie@chelsio.com req->word_cookie = htons(0); 1600e27d6169Skxie@chelsio.com req->mask = cpu_to_be64(0x3 << 4); 1601e27d6169Skxie@chelsio.com req->val = cpu_to_be64(((hcrc ? ULP_CRC_HEADER : 0) | 1602e27d6169Skxie@chelsio.com (dcrc ? ULP_CRC_DATA : 0)) << 4); 16037b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id); 16047b36b6e0Skxie@chelsio.com 16057b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 16067b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, crc %d,%d.\n", csk, csk->tid, hcrc, dcrc); 16077b36b6e0Skxie@chelsio.com 16087b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 16097b36b6e0Skxie@chelsio.com return 0; 16107b36b6e0Skxie@chelsio.com } 16117b36b6e0Skxie@chelsio.com 16127b36b6e0Skxie@chelsio.com static int cxgb4i_ddp_init(struct cxgbi_device *cdev) 16137b36b6e0Skxie@chelsio.com { 16147b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 16157b36b6e0Skxie@chelsio.com struct cxgbi_ddp_info *ddp = cdev->ddp; 16167b36b6e0Skxie@chelsio.com unsigned int tagmask, pgsz_factor[4]; 16177b36b6e0Skxie@chelsio.com int err; 16187b36b6e0Skxie@chelsio.com 16197b36b6e0Skxie@chelsio.com if (ddp) { 16207b36b6e0Skxie@chelsio.com kref_get(&ddp->refcnt); 16217b36b6e0Skxie@chelsio.com pr_warn("cdev 0x%p, ddp 0x%p already set up.\n", 16227b36b6e0Skxie@chelsio.com cdev, cdev->ddp); 16237b36b6e0Skxie@chelsio.com return -EALREADY; 16247b36b6e0Skxie@chelsio.com } 16257b36b6e0Skxie@chelsio.com 16267b36b6e0Skxie@chelsio.com err = cxgbi_ddp_init(cdev, lldi->vr->iscsi.start, 16277b36b6e0Skxie@chelsio.com lldi->vr->iscsi.start + lldi->vr->iscsi.size - 1, 16287b36b6e0Skxie@chelsio.com lldi->iscsi_iolen, lldi->iscsi_iolen); 16297b36b6e0Skxie@chelsio.com if (err < 0) 16307b36b6e0Skxie@chelsio.com return err; 16317b36b6e0Skxie@chelsio.com 16327b36b6e0Skxie@chelsio.com ddp = cdev->ddp; 16337b36b6e0Skxie@chelsio.com 16347b36b6e0Skxie@chelsio.com tagmask = ddp->idx_mask << PPOD_IDX_SHIFT; 16357b36b6e0Skxie@chelsio.com cxgbi_ddp_page_size_factor(pgsz_factor); 16367b36b6e0Skxie@chelsio.com cxgb4_iscsi_init(lldi->ports[0], tagmask, pgsz_factor); 16377b36b6e0Skxie@chelsio.com 16387b36b6e0Skxie@chelsio.com cdev->csk_ddp_setup_digest = ddp_setup_conn_digest; 16397b36b6e0Skxie@chelsio.com cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx; 16407b36b6e0Skxie@chelsio.com cdev->csk_ddp_set = ddp_set_map; 16417b36b6e0Skxie@chelsio.com cdev->csk_ddp_clear = ddp_clear_map; 16427b36b6e0Skxie@chelsio.com 16437b36b6e0Skxie@chelsio.com pr_info("cxgb4i 0x%p tag: sw %u, rsvd %u,%u, mask 0x%x.\n", 16447b36b6e0Skxie@chelsio.com cdev, cdev->tag_format.sw_bits, cdev->tag_format.rsvd_bits, 16457b36b6e0Skxie@chelsio.com cdev->tag_format.rsvd_shift, cdev->tag_format.rsvd_mask); 16467b36b6e0Skxie@chelsio.com pr_info("cxgb4i 0x%p, nppods %u, bits %u, mask 0x%x,0x%x pkt %u/%u, " 16477b36b6e0Skxie@chelsio.com " %u/%u.\n", 16487b36b6e0Skxie@chelsio.com cdev, ddp->nppods, ddp->idx_bits, ddp->idx_mask, 16497b36b6e0Skxie@chelsio.com ddp->rsvd_tag_mask, ddp->max_txsz, lldi->iscsi_iolen, 16507b36b6e0Skxie@chelsio.com ddp->max_rxsz, lldi->iscsi_iolen); 16517b36b6e0Skxie@chelsio.com pr_info("cxgb4i 0x%p max payload size: %u/%u, %u/%u.\n", 16527b36b6e0Skxie@chelsio.com cdev, cdev->tx_max_size, ddp->max_txsz, cdev->rx_max_size, 16537b36b6e0Skxie@chelsio.com ddp->max_rxsz); 16547b36b6e0Skxie@chelsio.com return 0; 16557b36b6e0Skxie@chelsio.com } 16567b36b6e0Skxie@chelsio.com 16577b36b6e0Skxie@chelsio.com static void *t4_uld_add(const struct cxgb4_lld_info *lldi) 16587b36b6e0Skxie@chelsio.com { 16597b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev; 16607b36b6e0Skxie@chelsio.com struct port_info *pi; 16617b36b6e0Skxie@chelsio.com int i, rc; 16627b36b6e0Skxie@chelsio.com 16637b36b6e0Skxie@chelsio.com cdev = cxgbi_device_register(sizeof(*lldi), lldi->nports); 16647b36b6e0Skxie@chelsio.com if (!cdev) { 16657b36b6e0Skxie@chelsio.com pr_info("t4 device 0x%p, register failed.\n", lldi); 16667b36b6e0Skxie@chelsio.com return NULL; 16677b36b6e0Skxie@chelsio.com } 16687b36b6e0Skxie@chelsio.com pr_info("0x%p,0x%x, ports %u,%s, chan %u, q %u,%u, wr %u.\n", 16697b36b6e0Skxie@chelsio.com cdev, lldi->adapter_type, lldi->nports, 16707b36b6e0Skxie@chelsio.com lldi->ports[0]->name, lldi->nchan, lldi->ntxq, 16717b36b6e0Skxie@chelsio.com lldi->nrxq, lldi->wr_cred); 16727b36b6e0Skxie@chelsio.com for (i = 0; i < lldi->nrxq; i++) 16737b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_DEV, 16747b36b6e0Skxie@chelsio.com "t4 0x%p, rxq id #%d: %u.\n", 16757b36b6e0Skxie@chelsio.com cdev, i, lldi->rxq_ids[i]); 16767b36b6e0Skxie@chelsio.com 16777b36b6e0Skxie@chelsio.com memcpy(cxgbi_cdev_priv(cdev), lldi, sizeof(*lldi)); 16787b36b6e0Skxie@chelsio.com cdev->flags = CXGBI_FLAG_DEV_T4; 16797b36b6e0Skxie@chelsio.com cdev->pdev = lldi->pdev; 16807b36b6e0Skxie@chelsio.com cdev->ports = lldi->ports; 16817b36b6e0Skxie@chelsio.com cdev->nports = lldi->nports; 16827b36b6e0Skxie@chelsio.com cdev->mtus = lldi->mtus; 16837b36b6e0Skxie@chelsio.com cdev->nmtus = NMTUS; 16847b36b6e0Skxie@chelsio.com cdev->snd_win = cxgb4i_snd_win; 16857b36b6e0Skxie@chelsio.com cdev->rcv_win = cxgb4i_rcv_win; 16867b36b6e0Skxie@chelsio.com cdev->rx_credit_thres = cxgb4i_rx_credit_thres; 16877b36b6e0Skxie@chelsio.com cdev->skb_tx_rsvd = CXGB4I_TX_HEADER_LEN; 16887b36b6e0Skxie@chelsio.com cdev->skb_rx_extra = sizeof(struct cpl_iscsi_hdr); 16897b36b6e0Skxie@chelsio.com cdev->itp = &cxgb4i_iscsi_transport; 16907b36b6e0Skxie@chelsio.com 1691d7990b0cSAnish Bhatt cdev->pfvf = FW_VIID_PFN_G(cxgb4_port_viid(lldi->ports[0])) 1692d7990b0cSAnish Bhatt << FW_VIID_PFN_S; 1693e27d6169Skxie@chelsio.com pr_info("cdev 0x%p,%s, pfvf %u.\n", 1694e27d6169Skxie@chelsio.com cdev, lldi->ports[0]->name, cdev->pfvf); 1695e27d6169Skxie@chelsio.com 16967b36b6e0Skxie@chelsio.com rc = cxgb4i_ddp_init(cdev); 16977b36b6e0Skxie@chelsio.com if (rc) { 16987b36b6e0Skxie@chelsio.com pr_info("t4 0x%p ddp init failed.\n", cdev); 16997b36b6e0Skxie@chelsio.com goto err_out; 17007b36b6e0Skxie@chelsio.com } 17017b36b6e0Skxie@chelsio.com rc = cxgb4i_ofld_init(cdev); 17027b36b6e0Skxie@chelsio.com if (rc) { 17037b36b6e0Skxie@chelsio.com pr_info("t4 0x%p ofld init failed.\n", cdev); 17047b36b6e0Skxie@chelsio.com goto err_out; 17057b36b6e0Skxie@chelsio.com } 17067b36b6e0Skxie@chelsio.com 17077b36b6e0Skxie@chelsio.com rc = cxgbi_hbas_add(cdev, CXGB4I_MAX_LUN, CXGBI_MAX_CONN, 17087b36b6e0Skxie@chelsio.com &cxgb4i_host_template, cxgb4i_stt); 17097b36b6e0Skxie@chelsio.com if (rc) 17107b36b6e0Skxie@chelsio.com goto err_out; 17117b36b6e0Skxie@chelsio.com 17127b36b6e0Skxie@chelsio.com for (i = 0; i < cdev->nports; i++) { 17137b36b6e0Skxie@chelsio.com pi = netdev_priv(lldi->ports[i]); 17147b36b6e0Skxie@chelsio.com cdev->hbas[i]->port_id = pi->port_id; 17157b36b6e0Skxie@chelsio.com } 17167b36b6e0Skxie@chelsio.com return cdev; 17177b36b6e0Skxie@chelsio.com 17187b36b6e0Skxie@chelsio.com err_out: 17197b36b6e0Skxie@chelsio.com cxgbi_device_unregister(cdev); 17207b36b6e0Skxie@chelsio.com return ERR_PTR(-ENOMEM); 17217b36b6e0Skxie@chelsio.com } 17227b36b6e0Skxie@chelsio.com 17237b36b6e0Skxie@chelsio.com #define RX_PULL_LEN 128 17247b36b6e0Skxie@chelsio.com static int t4_uld_rx_handler(void *handle, const __be64 *rsp, 17257b36b6e0Skxie@chelsio.com const struct pkt_gl *pgl) 17267b36b6e0Skxie@chelsio.com { 17277b36b6e0Skxie@chelsio.com const struct cpl_act_establish *rpl; 17287b36b6e0Skxie@chelsio.com struct sk_buff *skb; 17297b36b6e0Skxie@chelsio.com unsigned int opc; 17307b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = handle; 17317b36b6e0Skxie@chelsio.com 17327b36b6e0Skxie@chelsio.com if (pgl == NULL) { 17337b36b6e0Skxie@chelsio.com unsigned int len = 64 - sizeof(struct rsp_ctrl) - 8; 17347b36b6e0Skxie@chelsio.com 173524d3f95aSkxie@chelsio.com skb = alloc_wr(len, 0, GFP_ATOMIC); 17367b36b6e0Skxie@chelsio.com if (!skb) 17377b36b6e0Skxie@chelsio.com goto nomem; 17387b36b6e0Skxie@chelsio.com skb_copy_to_linear_data(skb, &rsp[1], len); 17397b36b6e0Skxie@chelsio.com } else { 17407b36b6e0Skxie@chelsio.com if (unlikely(*(u8 *)rsp != *(u8 *)pgl->va)) { 17417b36b6e0Skxie@chelsio.com pr_info("? FL 0x%p,RSS%#llx,FL %#llx,len %u.\n", 17427b36b6e0Skxie@chelsio.com pgl->va, be64_to_cpu(*rsp), 17437b36b6e0Skxie@chelsio.com be64_to_cpu(*(u64 *)pgl->va), 17447b36b6e0Skxie@chelsio.com pgl->tot_len); 17457b36b6e0Skxie@chelsio.com return 0; 17467b36b6e0Skxie@chelsio.com } 17477b36b6e0Skxie@chelsio.com skb = cxgb4_pktgl_to_skb(pgl, RX_PULL_LEN, RX_PULL_LEN); 17487b36b6e0Skxie@chelsio.com if (unlikely(!skb)) 17497b36b6e0Skxie@chelsio.com goto nomem; 17507b36b6e0Skxie@chelsio.com } 17517b36b6e0Skxie@chelsio.com 17527b36b6e0Skxie@chelsio.com rpl = (struct cpl_act_establish *)skb->data; 17537b36b6e0Skxie@chelsio.com opc = rpl->ot.opcode; 17547b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE, 17557b36b6e0Skxie@chelsio.com "cdev %p, opcode 0x%x(0x%x,0x%x), skb %p.\n", 17567b36b6e0Skxie@chelsio.com cdev, opc, rpl->ot.opcode_tid, ntohl(rpl->ot.opcode_tid), skb); 17577b36b6e0Skxie@chelsio.com if (cxgb4i_cplhandlers[opc]) 17587b36b6e0Skxie@chelsio.com cxgb4i_cplhandlers[opc](cdev, skb); 17597b36b6e0Skxie@chelsio.com else { 17607b36b6e0Skxie@chelsio.com pr_err("No handler for opcode 0x%x.\n", opc); 17617b36b6e0Skxie@chelsio.com __kfree_skb(skb); 17627b36b6e0Skxie@chelsio.com } 17637b36b6e0Skxie@chelsio.com return 0; 17647b36b6e0Skxie@chelsio.com nomem: 17657b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE, "OOM bailing out.\n"); 17667b36b6e0Skxie@chelsio.com return 1; 17677b36b6e0Skxie@chelsio.com } 17687b36b6e0Skxie@chelsio.com 17697b36b6e0Skxie@chelsio.com static int t4_uld_state_change(void *handle, enum cxgb4_state state) 17707b36b6e0Skxie@chelsio.com { 17717b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = handle; 17727b36b6e0Skxie@chelsio.com 17737b36b6e0Skxie@chelsio.com switch (state) { 17747b36b6e0Skxie@chelsio.com case CXGB4_STATE_UP: 17757b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, UP.\n", cdev); 17767b36b6e0Skxie@chelsio.com break; 17777b36b6e0Skxie@chelsio.com case CXGB4_STATE_START_RECOVERY: 17787b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, RECOVERY.\n", cdev); 17797b36b6e0Skxie@chelsio.com /* close all connections */ 17807b36b6e0Skxie@chelsio.com break; 17817b36b6e0Skxie@chelsio.com case CXGB4_STATE_DOWN: 17827b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, DOWN.\n", cdev); 17837b36b6e0Skxie@chelsio.com break; 17847b36b6e0Skxie@chelsio.com case CXGB4_STATE_DETACH: 17857b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, DETACH.\n", cdev); 1786c3b331a3SThadeu Lima de Souza Cascardo cxgbi_device_unregister(cdev); 17877b36b6e0Skxie@chelsio.com break; 17887b36b6e0Skxie@chelsio.com default: 17897b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, unknown state %d.\n", cdev, state); 17907b36b6e0Skxie@chelsio.com break; 17917b36b6e0Skxie@chelsio.com } 17927b36b6e0Skxie@chelsio.com return 0; 17937b36b6e0Skxie@chelsio.com } 17947b36b6e0Skxie@chelsio.com 17957b36b6e0Skxie@chelsio.com static int __init cxgb4i_init_module(void) 17967b36b6e0Skxie@chelsio.com { 17977b36b6e0Skxie@chelsio.com int rc; 17987b36b6e0Skxie@chelsio.com 17997b36b6e0Skxie@chelsio.com printk(KERN_INFO "%s", version); 18007b36b6e0Skxie@chelsio.com 18017b36b6e0Skxie@chelsio.com rc = cxgbi_iscsi_init(&cxgb4i_iscsi_transport, &cxgb4i_stt); 18027b36b6e0Skxie@chelsio.com if (rc < 0) 18037b36b6e0Skxie@chelsio.com return rc; 18047b36b6e0Skxie@chelsio.com cxgb4_register_uld(CXGB4_ULD_ISCSI, &cxgb4i_uld_info); 1805759a0cc5SAnish Bhatt 18067b36b6e0Skxie@chelsio.com return 0; 18077b36b6e0Skxie@chelsio.com } 18087b36b6e0Skxie@chelsio.com 18097b36b6e0Skxie@chelsio.com static void __exit cxgb4i_exit_module(void) 18107b36b6e0Skxie@chelsio.com { 18117b36b6e0Skxie@chelsio.com cxgb4_unregister_uld(CXGB4_ULD_ISCSI); 18127b36b6e0Skxie@chelsio.com cxgbi_device_unregister_all(CXGBI_FLAG_DEV_T4); 18137b36b6e0Skxie@chelsio.com cxgbi_iscsi_cleanup(&cxgb4i_iscsi_transport, &cxgb4i_stt); 18147b36b6e0Skxie@chelsio.com } 18157b36b6e0Skxie@chelsio.com 18167b36b6e0Skxie@chelsio.com module_init(cxgb4i_init_module); 18177b36b6e0Skxie@chelsio.com module_exit(cxgb4i_exit_module); 1818