17b36b6e0Skxie@chelsio.com /* 27b36b6e0Skxie@chelsio.com * cxgb4i.c: Chelsio T4 iSCSI driver. 37b36b6e0Skxie@chelsio.com * 41149a5edSKaren Xie * Copyright (c) 2010-2015 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 1628466e0fSNicolas Dichtel #include <linux/kernel.h> 177b36b6e0Skxie@chelsio.com #include <linux/module.h> 187b36b6e0Skxie@chelsio.com #include <linux/moduleparam.h> 197b36b6e0Skxie@chelsio.com #include <scsi/scsi_host.h> 207b36b6e0Skxie@chelsio.com #include <net/tcp.h> 217b36b6e0Skxie@chelsio.com #include <net/dst.h> 227b36b6e0Skxie@chelsio.com #include <linux/netdevice.h> 23759a0cc5SAnish Bhatt #include <net/addrconf.h> 247b36b6e0Skxie@chelsio.com 253bd3e8bfSKaren Xie #include "t4_regs.h" 267b36b6e0Skxie@chelsio.com #include "t4_msg.h" 277b36b6e0Skxie@chelsio.com #include "cxgb4.h" 287b36b6e0Skxie@chelsio.com #include "cxgb4_uld.h" 297b36b6e0Skxie@chelsio.com #include "t4fw_api.h" 307b36b6e0Skxie@chelsio.com #include "l2t.h" 317b36b6e0Skxie@chelsio.com #include "cxgb4i.h" 32211a84e3SAnish Bhatt #include "clip_tbl.h" 337b36b6e0Skxie@chelsio.com 347b36b6e0Skxie@chelsio.com static unsigned int dbg_level; 357b36b6e0Skxie@chelsio.com 367b36b6e0Skxie@chelsio.com #include "../libcxgbi.h" 377b36b6e0Skxie@chelsio.com 387b36b6e0Skxie@chelsio.com #define DRV_MODULE_NAME "cxgb4i" 393bd3e8bfSKaren Xie #define DRV_MODULE_DESC "Chelsio T4/T5 iSCSI Driver" 400ea5bf3dSKaren Xie #define DRV_MODULE_VERSION "0.9.5-ko" 410ea5bf3dSKaren Xie #define DRV_MODULE_RELDATE "Apr. 2015" 427b36b6e0Skxie@chelsio.com 437b36b6e0Skxie@chelsio.com static char version[] = 447b36b6e0Skxie@chelsio.com DRV_MODULE_DESC " " DRV_MODULE_NAME 450ea5bf3dSKaren Xie " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; 467b36b6e0Skxie@chelsio.com 477b36b6e0Skxie@chelsio.com MODULE_AUTHOR("Chelsio Communications, Inc."); 487b36b6e0Skxie@chelsio.com MODULE_DESCRIPTION(DRV_MODULE_DESC); 497b36b6e0Skxie@chelsio.com MODULE_VERSION(DRV_MODULE_VERSION); 507b36b6e0Skxie@chelsio.com MODULE_LICENSE("GPL"); 517b36b6e0Skxie@chelsio.com 527b36b6e0Skxie@chelsio.com module_param(dbg_level, uint, 0644); 537b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(dbg_level, "Debug flag (default=0)"); 547b36b6e0Skxie@chelsio.com 5581daf10cSKaren Xie #define CXGB4I_DEFAULT_10G_RCV_WIN (256 * 1024) 5681daf10cSKaren Xie static int cxgb4i_rcv_win = -1; 577b36b6e0Skxie@chelsio.com module_param(cxgb4i_rcv_win, int, 0644); 587b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_rcv_win, "TCP reveive window in bytes"); 597b36b6e0Skxie@chelsio.com 6081daf10cSKaren Xie #define CXGB4I_DEFAULT_10G_SND_WIN (128 * 1024) 6181daf10cSKaren Xie static int cxgb4i_snd_win = -1; 627b36b6e0Skxie@chelsio.com module_param(cxgb4i_snd_win, int, 0644); 637b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_snd_win, "TCP send window in bytes"); 647b36b6e0Skxie@chelsio.com 657b36b6e0Skxie@chelsio.com static int cxgb4i_rx_credit_thres = 10 * 1024; 667b36b6e0Skxie@chelsio.com module_param(cxgb4i_rx_credit_thres, int, 0644); 677b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_rx_credit_thres, 687b36b6e0Skxie@chelsio.com "RX credits return threshold in bytes (default=10KB)"); 697b36b6e0Skxie@chelsio.com 707b36b6e0Skxie@chelsio.com static unsigned int cxgb4i_max_connect = (8 * 1024); 717b36b6e0Skxie@chelsio.com module_param(cxgb4i_max_connect, uint, 0644); 727b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_max_connect, "Maximum number of connections"); 737b36b6e0Skxie@chelsio.com 747b36b6e0Skxie@chelsio.com static unsigned short cxgb4i_sport_base = 20000; 757b36b6e0Skxie@chelsio.com module_param(cxgb4i_sport_base, ushort, 0644); 767b36b6e0Skxie@chelsio.com MODULE_PARM_DESC(cxgb4i_sport_base, "Starting port number (default 20000)"); 777b36b6e0Skxie@chelsio.com 787b36b6e0Skxie@chelsio.com typedef void (*cxgb4i_cplhandler_func)(struct cxgbi_device *, struct sk_buff *); 797b36b6e0Skxie@chelsio.com 807b36b6e0Skxie@chelsio.com static void *t4_uld_add(const struct cxgb4_lld_info *); 817b36b6e0Skxie@chelsio.com static int t4_uld_rx_handler(void *, const __be64 *, const struct pkt_gl *); 827b36b6e0Skxie@chelsio.com static int t4_uld_state_change(void *, enum cxgb4_state state); 8364bfead8SKaren Xie static inline int send_tx_flowc_wr(struct cxgbi_sock *); 847b36b6e0Skxie@chelsio.com 857b36b6e0Skxie@chelsio.com static const struct cxgb4_uld_info cxgb4i_uld_info = { 867b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 870fbc81b3SHariprasad Shenai .nrxq = MAX_ULD_QSETS, 88ab677ff4SHariprasad Shenai .ntxq = MAX_ULD_QSETS, 890fbc81b3SHariprasad Shenai .rxq_size = 1024, 900fbc81b3SHariprasad Shenai .lro = false, 917b36b6e0Skxie@chelsio.com .add = t4_uld_add, 927b36b6e0Skxie@chelsio.com .rx_handler = t4_uld_rx_handler, 937b36b6e0Skxie@chelsio.com .state_change = t4_uld_state_change, 947b36b6e0Skxie@chelsio.com }; 957b36b6e0Skxie@chelsio.com 967b36b6e0Skxie@chelsio.com static struct scsi_host_template cxgb4i_host_template = { 977b36b6e0Skxie@chelsio.com .module = THIS_MODULE, 987b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 997b36b6e0Skxie@chelsio.com .proc_name = DRV_MODULE_NAME, 1007b36b6e0Skxie@chelsio.com .can_queue = CXGB4I_SCSI_HOST_QDEPTH, 1017b36b6e0Skxie@chelsio.com .queuecommand = iscsi_queuecommand, 102db5ed4dfSChristoph Hellwig .change_queue_depth = scsi_change_queue_depth, 1037b36b6e0Skxie@chelsio.com .sg_tablesize = SG_ALL, 1047b36b6e0Skxie@chelsio.com .max_sectors = 0xFFFF, 1057b36b6e0Skxie@chelsio.com .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, 1067b36b6e0Skxie@chelsio.com .eh_abort_handler = iscsi_eh_abort, 1077b36b6e0Skxie@chelsio.com .eh_device_reset_handler = iscsi_eh_device_reset, 1087b36b6e0Skxie@chelsio.com .eh_target_reset_handler = iscsi_eh_recover_target, 1097b36b6e0Skxie@chelsio.com .target_alloc = iscsi_target_alloc, 1107b36b6e0Skxie@chelsio.com .use_clustering = DISABLE_CLUSTERING, 1117b36b6e0Skxie@chelsio.com .this_id = -1, 112c40ecc12SChristoph Hellwig .track_queue_depth = 1, 1137b36b6e0Skxie@chelsio.com }; 1147b36b6e0Skxie@chelsio.com 1157b36b6e0Skxie@chelsio.com static struct iscsi_transport cxgb4i_iscsi_transport = { 1167b36b6e0Skxie@chelsio.com .owner = THIS_MODULE, 1177b36b6e0Skxie@chelsio.com .name = DRV_MODULE_NAME, 1187b36b6e0Skxie@chelsio.com .caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST | 1197b36b6e0Skxie@chelsio.com CAP_DATADGST | CAP_DIGEST_OFFLOAD | 120fdafd4dfSMike Christie CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO, 1213128c6c7SMike Christie .attr_is_visible = cxgbi_attr_is_visible, 1227b36b6e0Skxie@chelsio.com .get_host_param = cxgbi_get_host_param, 1237b36b6e0Skxie@chelsio.com .set_host_param = cxgbi_set_host_param, 1247b36b6e0Skxie@chelsio.com /* session management */ 1257b36b6e0Skxie@chelsio.com .create_session = cxgbi_create_session, 1267b36b6e0Skxie@chelsio.com .destroy_session = cxgbi_destroy_session, 1277b36b6e0Skxie@chelsio.com .get_session_param = iscsi_session_get_param, 1287b36b6e0Skxie@chelsio.com /* connection management */ 1297b36b6e0Skxie@chelsio.com .create_conn = cxgbi_create_conn, 1307b36b6e0Skxie@chelsio.com .bind_conn = cxgbi_bind_conn, 1317b36b6e0Skxie@chelsio.com .destroy_conn = iscsi_tcp_conn_teardown, 1327b36b6e0Skxie@chelsio.com .start_conn = iscsi_conn_start, 1337b36b6e0Skxie@chelsio.com .stop_conn = iscsi_conn_stop, 134c71b9b66SMike Christie .get_conn_param = iscsi_conn_get_param, 1357b36b6e0Skxie@chelsio.com .set_param = cxgbi_set_conn_param, 1367b36b6e0Skxie@chelsio.com .get_stats = cxgbi_get_conn_stats, 1377b36b6e0Skxie@chelsio.com /* pdu xmit req from user space */ 1387b36b6e0Skxie@chelsio.com .send_pdu = iscsi_conn_send_pdu, 1397b36b6e0Skxie@chelsio.com /* task */ 1407b36b6e0Skxie@chelsio.com .init_task = iscsi_tcp_task_init, 1417b36b6e0Skxie@chelsio.com .xmit_task = iscsi_tcp_task_xmit, 1427b36b6e0Skxie@chelsio.com .cleanup_task = cxgbi_cleanup_task, 1437b36b6e0Skxie@chelsio.com /* pdu */ 1447b36b6e0Skxie@chelsio.com .alloc_pdu = cxgbi_conn_alloc_pdu, 1457b36b6e0Skxie@chelsio.com .init_pdu = cxgbi_conn_init_pdu, 1467b36b6e0Skxie@chelsio.com .xmit_pdu = cxgbi_conn_xmit_pdu, 1477b36b6e0Skxie@chelsio.com .parse_pdu_itt = cxgbi_parse_pdu_itt, 1487b36b6e0Skxie@chelsio.com /* TCP connect/disconnect */ 149c71b9b66SMike Christie .get_ep_param = cxgbi_get_ep_param, 1507b36b6e0Skxie@chelsio.com .ep_connect = cxgbi_ep_connect, 1517b36b6e0Skxie@chelsio.com .ep_poll = cxgbi_ep_poll, 1527b36b6e0Skxie@chelsio.com .ep_disconnect = cxgbi_ep_disconnect, 1537b36b6e0Skxie@chelsio.com /* Error recovery timeout call */ 1547b36b6e0Skxie@chelsio.com .session_recovery_timedout = iscsi_session_recovery_timedout, 1557b36b6e0Skxie@chelsio.com }; 1567b36b6e0Skxie@chelsio.com 1577b36b6e0Skxie@chelsio.com static struct scsi_transport_template *cxgb4i_stt; 1587b36b6e0Skxie@chelsio.com 1597b36b6e0Skxie@chelsio.com /* 1607b36b6e0Skxie@chelsio.com * CPL (Chelsio Protocol Language) defines a message passing interface between 1617b36b6e0Skxie@chelsio.com * the host driver and Chelsio asic. 1627b36b6e0Skxie@chelsio.com * The section below implments CPLs that related to iscsi tcp connection 1637b36b6e0Skxie@chelsio.com * open/close/abort and data send/receive. 1647b36b6e0Skxie@chelsio.com */ 165759a0cc5SAnish Bhatt 1667b36b6e0Skxie@chelsio.com #define RCV_BUFSIZ_MASK 0x3FFU 167d3074cceSKaren Xie #define MAX_IMM_TX_PKT_LEN 256 1687b36b6e0Skxie@chelsio.com 1697b36b6e0Skxie@chelsio.com static int push_tx_frames(struct cxgbi_sock *, int); 1707b36b6e0Skxie@chelsio.com 1717b36b6e0Skxie@chelsio.com /* 1727b36b6e0Skxie@chelsio.com * is_ofld_imm - check whether a packet can be sent as immediate data 1737b36b6e0Skxie@chelsio.com * @skb: the packet 1747b36b6e0Skxie@chelsio.com * 1757b36b6e0Skxie@chelsio.com * Returns true if a packet can be sent as an offload WR with immediate 1767b36b6e0Skxie@chelsio.com * data. We currently use the same limit as for Ethernet packets. 1777b36b6e0Skxie@chelsio.com */ 17884944d8cSKaren Xie static inline bool is_ofld_imm(const struct sk_buff *skb) 1797b36b6e0Skxie@chelsio.com { 18084944d8cSKaren Xie int len = skb->len; 18184944d8cSKaren Xie 18284944d8cSKaren Xie if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) 18384944d8cSKaren Xie len += sizeof(struct fw_ofld_tx_data_wr); 18484944d8cSKaren Xie 18584944d8cSKaren Xie return len <= MAX_IMM_TX_PKT_LEN; 1867b36b6e0Skxie@chelsio.com } 1877b36b6e0Skxie@chelsio.com 1887b36b6e0Skxie@chelsio.com static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb, 1897b36b6e0Skxie@chelsio.com struct l2t_entry *e) 1907b36b6e0Skxie@chelsio.com { 1913bd3e8bfSKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 192759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 1937b36b6e0Skxie@chelsio.com int wscale = cxgbi_sock_compute_wscale(csk->mss_idx); 1947b36b6e0Skxie@chelsio.com unsigned long long opt0; 1957b36b6e0Skxie@chelsio.com unsigned int opt2; 1967b36b6e0Skxie@chelsio.com unsigned int qid_atid = ((unsigned int)csk->atid) | 1977b36b6e0Skxie@chelsio.com (((unsigned int)csk->rss_qid) << 14); 1987b36b6e0Skxie@chelsio.com 199d7990b0cSAnish Bhatt opt0 = KEEP_ALIVE_F | 200d7990b0cSAnish Bhatt WND_SCALE_V(wscale) | 201d7990b0cSAnish Bhatt MSS_IDX_V(csk->mss_idx) | 202d7990b0cSAnish Bhatt L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) | 203d7990b0cSAnish Bhatt TX_CHAN_V(csk->tx_chan) | 204d7990b0cSAnish Bhatt SMAC_SEL_V(csk->smac_idx) | 205d7990b0cSAnish Bhatt ULP_MODE_V(ULP_MODE_ISCSI) | 20681daf10cSKaren Xie RCV_BUFSIZ_V(csk->rcv_win >> 10); 2071eb88a5dSKaren Xie 208d7990b0cSAnish Bhatt opt2 = RX_CHANNEL_V(0) | 209d7990b0cSAnish Bhatt RSS_QUEUE_VALID_F | 210d7990b0cSAnish Bhatt RSS_QUEUE_V(csk->rss_qid); 2117b36b6e0Skxie@chelsio.com 2123bd3e8bfSKaren Xie if (is_t4(lldi->adapter_type)) { 2133bd3e8bfSKaren Xie struct cpl_act_open_req *req = 2143bd3e8bfSKaren Xie (struct cpl_act_open_req *)skb->head; 2153bd3e8bfSKaren Xie 2167b36b6e0Skxie@chelsio.com INIT_TP_WR(req, 0); 2177b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, 2187b36b6e0Skxie@chelsio.com qid_atid)); 2197b36b6e0Skxie@chelsio.com req->local_port = csk->saddr.sin_port; 2207b36b6e0Skxie@chelsio.com req->peer_port = csk->daddr.sin_port; 2217b36b6e0Skxie@chelsio.com req->local_ip = csk->saddr.sin_addr.s_addr; 2227b36b6e0Skxie@chelsio.com req->peer_ip = csk->daddr.sin_addr.s_addr; 2237b36b6e0Skxie@chelsio.com req->opt0 = cpu_to_be64(opt0); 224ac0245ffSKaren Xie req->params = cpu_to_be32(cxgb4_select_ntuple( 225ac0245ffSKaren Xie csk->cdev->ports[csk->port_id], 226ac0245ffSKaren Xie csk->l2t)); 227d7990b0cSAnish Bhatt opt2 |= RX_FC_VALID_F; 2287b36b6e0Skxie@chelsio.com req->opt2 = cpu_to_be32(opt2); 2297b36b6e0Skxie@chelsio.com 2307b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 2313bd3e8bfSKaren Xie "csk t4 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n", 2327b36b6e0Skxie@chelsio.com csk, &req->local_ip, ntohs(req->local_port), 2337b36b6e0Skxie@chelsio.com &req->peer_ip, ntohs(req->peer_port), 2347b36b6e0Skxie@chelsio.com csk->atid, csk->rss_qid); 2353bd3e8bfSKaren Xie } else { 2363bd3e8bfSKaren Xie struct cpl_t5_act_open_req *req = 2373bd3e8bfSKaren Xie (struct cpl_t5_act_open_req *)skb->head; 2381eb88a5dSKaren Xie u32 isn = (prandom_u32() & ~7UL) - 1; 2397b36b6e0Skxie@chelsio.com 2403bd3e8bfSKaren Xie INIT_TP_WR(req, 0); 2413bd3e8bfSKaren Xie OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, 2423bd3e8bfSKaren Xie qid_atid)); 2433bd3e8bfSKaren Xie req->local_port = csk->saddr.sin_port; 2443bd3e8bfSKaren Xie req->peer_port = csk->daddr.sin_port; 2453bd3e8bfSKaren Xie req->local_ip = csk->saddr.sin_addr.s_addr; 2463bd3e8bfSKaren Xie req->peer_ip = csk->daddr.sin_addr.s_addr; 2473bd3e8bfSKaren Xie req->opt0 = cpu_to_be64(opt0); 248d7990b0cSAnish Bhatt req->params = cpu_to_be64(FILTER_TUPLE_V( 249ac0245ffSKaren Xie cxgb4_select_ntuple( 250ac0245ffSKaren Xie csk->cdev->ports[csk->port_id], 251ac0245ffSKaren Xie csk->l2t))); 2521eb88a5dSKaren Xie req->rsvd = cpu_to_be32(isn); 2531eb88a5dSKaren Xie opt2 |= T5_ISS_VALID; 2541eb88a5dSKaren Xie opt2 |= T5_OPT_2_VALID_F; 2551eb88a5dSKaren Xie 2563bd3e8bfSKaren Xie req->opt2 = cpu_to_be32(opt2); 2573bd3e8bfSKaren Xie 2583bd3e8bfSKaren Xie log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 2593bd3e8bfSKaren Xie "csk t5 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n", 2603bd3e8bfSKaren Xie csk, &req->local_ip, ntohs(req->local_port), 2613bd3e8bfSKaren Xie &req->peer_ip, ntohs(req->peer_port), 2623bd3e8bfSKaren Xie csk->atid, csk->rss_qid); 2633bd3e8bfSKaren Xie } 2643bd3e8bfSKaren Xie 2653bd3e8bfSKaren Xie set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); 266759a0cc5SAnish Bhatt 267759a0cc5SAnish Bhatt pr_info_ipaddr("t%d csk 0x%p,%u,0x%lx,%u, rss_qid %u.\n", 268759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), t4 ? 4 : 5, csk, 269759a0cc5SAnish Bhatt csk->state, csk->flags, csk->atid, csk->rss_qid); 270759a0cc5SAnish Bhatt 271759a0cc5SAnish Bhatt cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 272759a0cc5SAnish Bhatt } 273759a0cc5SAnish Bhatt 274f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 275759a0cc5SAnish Bhatt static void send_act_open_req6(struct cxgbi_sock *csk, struct sk_buff *skb, 276759a0cc5SAnish Bhatt struct l2t_entry *e) 277759a0cc5SAnish Bhatt { 278759a0cc5SAnish Bhatt struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 279759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 280759a0cc5SAnish Bhatt int wscale = cxgbi_sock_compute_wscale(csk->mss_idx); 281759a0cc5SAnish Bhatt unsigned long long opt0; 282759a0cc5SAnish Bhatt unsigned int opt2; 283759a0cc5SAnish Bhatt unsigned int qid_atid = ((unsigned int)csk->atid) | 284759a0cc5SAnish Bhatt (((unsigned int)csk->rss_qid) << 14); 285759a0cc5SAnish Bhatt 286d7990b0cSAnish Bhatt opt0 = KEEP_ALIVE_F | 287d7990b0cSAnish Bhatt WND_SCALE_V(wscale) | 288d7990b0cSAnish Bhatt MSS_IDX_V(csk->mss_idx) | 289d7990b0cSAnish Bhatt L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) | 290d7990b0cSAnish Bhatt TX_CHAN_V(csk->tx_chan) | 291d7990b0cSAnish Bhatt SMAC_SEL_V(csk->smac_idx) | 292d7990b0cSAnish Bhatt ULP_MODE_V(ULP_MODE_ISCSI) | 29381daf10cSKaren Xie RCV_BUFSIZ_V(csk->rcv_win >> 10); 294759a0cc5SAnish Bhatt 295d7990b0cSAnish Bhatt opt2 = RX_CHANNEL_V(0) | 296d7990b0cSAnish Bhatt RSS_QUEUE_VALID_F | 297d7990b0cSAnish Bhatt RX_FC_DISABLE_F | 298d7990b0cSAnish Bhatt RSS_QUEUE_V(csk->rss_qid); 299759a0cc5SAnish Bhatt 300759a0cc5SAnish Bhatt if (t4) { 301759a0cc5SAnish Bhatt struct cpl_act_open_req6 *req = 302759a0cc5SAnish Bhatt (struct cpl_act_open_req6 *)skb->head; 303759a0cc5SAnish Bhatt 304759a0cc5SAnish Bhatt INIT_TP_WR(req, 0); 305759a0cc5SAnish Bhatt OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6, 306759a0cc5SAnish Bhatt qid_atid)); 307759a0cc5SAnish Bhatt req->local_port = csk->saddr6.sin6_port; 308759a0cc5SAnish Bhatt req->peer_port = csk->daddr6.sin6_port; 309759a0cc5SAnish Bhatt 310759a0cc5SAnish Bhatt req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr); 311759a0cc5SAnish Bhatt req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr + 312759a0cc5SAnish Bhatt 8); 313759a0cc5SAnish Bhatt req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr); 314759a0cc5SAnish Bhatt req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr + 315759a0cc5SAnish Bhatt 8); 316759a0cc5SAnish Bhatt 317759a0cc5SAnish Bhatt req->opt0 = cpu_to_be64(opt0); 318759a0cc5SAnish Bhatt 319d7990b0cSAnish Bhatt opt2 |= RX_FC_VALID_F; 320759a0cc5SAnish Bhatt req->opt2 = cpu_to_be32(opt2); 321759a0cc5SAnish Bhatt 322759a0cc5SAnish Bhatt req->params = cpu_to_be32(cxgb4_select_ntuple( 323759a0cc5SAnish Bhatt csk->cdev->ports[csk->port_id], 324759a0cc5SAnish Bhatt csk->l2t)); 325759a0cc5SAnish Bhatt } else { 326759a0cc5SAnish Bhatt struct cpl_t5_act_open_req6 *req = 327759a0cc5SAnish Bhatt (struct cpl_t5_act_open_req6 *)skb->head; 328759a0cc5SAnish Bhatt 329759a0cc5SAnish Bhatt INIT_TP_WR(req, 0); 330759a0cc5SAnish Bhatt OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6, 331759a0cc5SAnish Bhatt qid_atid)); 332759a0cc5SAnish Bhatt req->local_port = csk->saddr6.sin6_port; 333759a0cc5SAnish Bhatt req->peer_port = csk->daddr6.sin6_port; 334759a0cc5SAnish Bhatt req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr); 335759a0cc5SAnish Bhatt req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr + 336759a0cc5SAnish Bhatt 8); 337759a0cc5SAnish Bhatt req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr); 338759a0cc5SAnish Bhatt req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr + 339759a0cc5SAnish Bhatt 8); 340759a0cc5SAnish Bhatt req->opt0 = cpu_to_be64(opt0); 341759a0cc5SAnish Bhatt 342d7990b0cSAnish Bhatt opt2 |= T5_OPT_2_VALID_F; 343759a0cc5SAnish Bhatt req->opt2 = cpu_to_be32(opt2); 344759a0cc5SAnish Bhatt 345d7990b0cSAnish Bhatt req->params = cpu_to_be64(FILTER_TUPLE_V(cxgb4_select_ntuple( 346759a0cc5SAnish Bhatt csk->cdev->ports[csk->port_id], 347759a0cc5SAnish Bhatt csk->l2t))); 348759a0cc5SAnish Bhatt } 349759a0cc5SAnish Bhatt 350759a0cc5SAnish Bhatt set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); 351759a0cc5SAnish Bhatt 352759a0cc5SAnish Bhatt pr_info("t%d csk 0x%p,%u,0x%lx,%u, [%pI6]:%u-[%pI6]:%u, rss_qid %u.\n", 353759a0cc5SAnish Bhatt t4 ? 4 : 5, csk, csk->state, csk->flags, csk->atid, 354759a0cc5SAnish Bhatt &csk->saddr6.sin6_addr, ntohs(csk->saddr.sin_port), 355759a0cc5SAnish Bhatt &csk->daddr6.sin6_addr, ntohs(csk->daddr.sin_port), 356759a0cc5SAnish Bhatt csk->rss_qid); 357759a0cc5SAnish Bhatt 3587b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 3597b36b6e0Skxie@chelsio.com } 360f42bb57cSAnish Bhatt #endif 3617b36b6e0Skxie@chelsio.com 3627b36b6e0Skxie@chelsio.com static void send_close_req(struct cxgbi_sock *csk) 3637b36b6e0Skxie@chelsio.com { 3647b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_close; 3657b36b6e0Skxie@chelsio.com struct cpl_close_con_req *req = (struct cpl_close_con_req *)skb->head; 3667b36b6e0Skxie@chelsio.com unsigned int tid = csk->tid; 3677b36b6e0Skxie@chelsio.com 3687b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 3697b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u.\n", 3707b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 3717b36b6e0Skxie@chelsio.com csk->cpl_close = NULL; 3727b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 3737b36b6e0Skxie@chelsio.com INIT_TP_WR(req, tid); 3747b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_CLOSE_CON_REQ, tid)); 3757b36b6e0Skxie@chelsio.com req->rsvd = 0; 3767b36b6e0Skxie@chelsio.com 3777b36b6e0Skxie@chelsio.com cxgbi_sock_skb_entail(csk, skb); 3787b36b6e0Skxie@chelsio.com if (csk->state >= CTP_ESTABLISHED) 3797b36b6e0Skxie@chelsio.com push_tx_frames(csk, 1); 3807b36b6e0Skxie@chelsio.com } 3817b36b6e0Skxie@chelsio.com 3827b36b6e0Skxie@chelsio.com static void abort_arp_failure(void *handle, struct sk_buff *skb) 3837b36b6e0Skxie@chelsio.com { 3847b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk = (struct cxgbi_sock *)handle; 3857b36b6e0Skxie@chelsio.com struct cpl_abort_req *req; 3867b36b6e0Skxie@chelsio.com 3877b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 3887b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, abort.\n", 3897b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 3907b36b6e0Skxie@chelsio.com req = (struct cpl_abort_req *)skb->data; 3917b36b6e0Skxie@chelsio.com req->cmd = CPL_ABORT_NO_RST; 3927b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 3937b36b6e0Skxie@chelsio.com } 3947b36b6e0Skxie@chelsio.com 3957b36b6e0Skxie@chelsio.com static void send_abort_req(struct cxgbi_sock *csk) 3967b36b6e0Skxie@chelsio.com { 3977b36b6e0Skxie@chelsio.com struct cpl_abort_req *req; 3987b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_abort_req; 3997b36b6e0Skxie@chelsio.com 4007b36b6e0Skxie@chelsio.com if (unlikely(csk->state == CTP_ABORTING) || !skb || !csk->cdev) 4017b36b6e0Skxie@chelsio.com return; 40264bfead8SKaren Xie 40364bfead8SKaren Xie if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) { 40464bfead8SKaren Xie send_tx_flowc_wr(csk); 40564bfead8SKaren Xie cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 40664bfead8SKaren Xie } 40764bfead8SKaren Xie 4087b36b6e0Skxie@chelsio.com cxgbi_sock_set_state(csk, CTP_ABORTING); 4097b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_ABORT_RPL_PENDING); 4107b36b6e0Skxie@chelsio.com cxgbi_sock_purge_write_queue(csk); 4117b36b6e0Skxie@chelsio.com 4127b36b6e0Skxie@chelsio.com csk->cpl_abort_req = NULL; 4137b36b6e0Skxie@chelsio.com req = (struct cpl_abort_req *)skb->head; 4142126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 4157b36b6e0Skxie@chelsio.com req->cmd = CPL_ABORT_SEND_RST; 4167b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, abort_arp_failure); 4177b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 4187b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, csk->tid)); 4197b36b6e0Skxie@chelsio.com req->rsvd0 = htonl(csk->snd_nxt); 4207b36b6e0Skxie@chelsio.com req->rsvd1 = !cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT); 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, snd_nxt %u, 0x%x.\n", 4247b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, csk->snd_nxt, 4257b36b6e0Skxie@chelsio.com req->rsvd1); 4267b36b6e0Skxie@chelsio.com 4277b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 4287b36b6e0Skxie@chelsio.com } 4297b36b6e0Skxie@chelsio.com 4307b36b6e0Skxie@chelsio.com static void send_abort_rpl(struct cxgbi_sock *csk, int rst_status) 4317b36b6e0Skxie@chelsio.com { 4327b36b6e0Skxie@chelsio.com struct sk_buff *skb = csk->cpl_abort_rpl; 4337b36b6e0Skxie@chelsio.com struct cpl_abort_rpl *rpl = (struct cpl_abort_rpl *)skb->head; 4347b36b6e0Skxie@chelsio.com 4357b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 4367b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, status %d.\n", 4377b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, rst_status); 4387b36b6e0Skxie@chelsio.com 4397b36b6e0Skxie@chelsio.com csk->cpl_abort_rpl = NULL; 4402126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 4417b36b6e0Skxie@chelsio.com INIT_TP_WR(rpl, csk->tid); 4427b36b6e0Skxie@chelsio.com OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_RPL, csk->tid)); 4437b36b6e0Skxie@chelsio.com rpl->cmd = rst_status; 4447b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 4457b36b6e0Skxie@chelsio.com } 4467b36b6e0Skxie@chelsio.com 4477b36b6e0Skxie@chelsio.com /* 4487b36b6e0Skxie@chelsio.com * CPL connection rx data ack: host -> 4497b36b6e0Skxie@chelsio.com * Send RX credits through an RX_DATA_ACK CPL message. Returns the number of 4507b36b6e0Skxie@chelsio.com * credits sent. 4517b36b6e0Skxie@chelsio.com */ 4527b36b6e0Skxie@chelsio.com static u32 send_rx_credits(struct cxgbi_sock *csk, u32 credits) 4537b36b6e0Skxie@chelsio.com { 4547b36b6e0Skxie@chelsio.com struct sk_buff *skb; 4557b36b6e0Skxie@chelsio.com struct cpl_rx_data_ack *req; 4567b36b6e0Skxie@chelsio.com 4577b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 4587b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, credit %u.\n", 4597b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, credits); 4607b36b6e0Skxie@chelsio.com 46124d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_ATOMIC); 4627b36b6e0Skxie@chelsio.com if (!skb) { 4637b36b6e0Skxie@chelsio.com pr_info("csk 0x%p, credit %u, OOM.\n", csk, credits); 4647b36b6e0Skxie@chelsio.com return 0; 4657b36b6e0Skxie@chelsio.com } 4667b36b6e0Skxie@chelsio.com req = (struct cpl_rx_data_ack *)skb->head; 4677b36b6e0Skxie@chelsio.com 4687b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_ACK, csk->port_id); 4697b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 4707b36b6e0Skxie@chelsio.com OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_RX_DATA_ACK, 4717b36b6e0Skxie@chelsio.com csk->tid)); 472d7990b0cSAnish Bhatt req->credit_dack = cpu_to_be32(RX_CREDITS_V(credits) 473d7990b0cSAnish Bhatt | RX_FORCE_ACK_F); 4747b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 4757b36b6e0Skxie@chelsio.com return credits; 4767b36b6e0Skxie@chelsio.com } 4777b36b6e0Skxie@chelsio.com 4787b36b6e0Skxie@chelsio.com /* 4797b36b6e0Skxie@chelsio.com * sgl_len - calculates the size of an SGL of the given capacity 4807b36b6e0Skxie@chelsio.com * @n: the number of SGL entries 4817b36b6e0Skxie@chelsio.com * Calculates the number of flits needed for a scatter/gather list that 4827b36b6e0Skxie@chelsio.com * can hold the given number of entries. 4837b36b6e0Skxie@chelsio.com */ 4847b36b6e0Skxie@chelsio.com static inline unsigned int sgl_len(unsigned int n) 4857b36b6e0Skxie@chelsio.com { 4867b36b6e0Skxie@chelsio.com n--; 4877b36b6e0Skxie@chelsio.com return (3 * n) / 2 + (n & 1) + 2; 4887b36b6e0Skxie@chelsio.com } 4897b36b6e0Skxie@chelsio.com 4907b36b6e0Skxie@chelsio.com /* 4917b36b6e0Skxie@chelsio.com * calc_tx_flits_ofld - calculate # of flits for an offload packet 4927b36b6e0Skxie@chelsio.com * @skb: the packet 4937b36b6e0Skxie@chelsio.com * 4947b36b6e0Skxie@chelsio.com * Returns the number of flits needed for the given offload packet. 4957b36b6e0Skxie@chelsio.com * These packets are already fully constructed and no additional headers 4967b36b6e0Skxie@chelsio.com * will be added. 4977b36b6e0Skxie@chelsio.com */ 4987b36b6e0Skxie@chelsio.com static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb) 4997b36b6e0Skxie@chelsio.com { 5007b36b6e0Skxie@chelsio.com unsigned int flits, cnt; 5017b36b6e0Skxie@chelsio.com 5027b36b6e0Skxie@chelsio.com if (is_ofld_imm(skb)) 5037b36b6e0Skxie@chelsio.com return DIV_ROUND_UP(skb->len, 8); 5047b36b6e0Skxie@chelsio.com flits = skb_transport_offset(skb) / 8; 5057b36b6e0Skxie@chelsio.com cnt = skb_shinfo(skb)->nr_frags; 506499e2e6fSIsaku Yamahata if (skb_tail_pointer(skb) != skb_transport_header(skb)) 5077b36b6e0Skxie@chelsio.com cnt++; 5087b36b6e0Skxie@chelsio.com return flits + sgl_len(cnt); 5097b36b6e0Skxie@chelsio.com } 5107b36b6e0Skxie@chelsio.com 51164bfead8SKaren Xie #define FLOWC_WR_NPARAMS_MIN 9 51264bfead8SKaren Xie static inline int tx_flowc_wr_credits(int *nparamsp, int *flowclenp) 51364bfead8SKaren Xie { 51464bfead8SKaren Xie int nparams, flowclen16, flowclen; 51564bfead8SKaren Xie 51664bfead8SKaren Xie nparams = FLOWC_WR_NPARAMS_MIN; 51764bfead8SKaren Xie flowclen = offsetof(struct fw_flowc_wr, mnemval[nparams]); 51864bfead8SKaren Xie flowclen16 = DIV_ROUND_UP(flowclen, 16); 51964bfead8SKaren Xie flowclen = flowclen16 * 16; 52064bfead8SKaren Xie /* 52164bfead8SKaren Xie * Return the number of 16-byte credits used by the FlowC request. 52264bfead8SKaren Xie * Pass back the nparams and actual FlowC length if requested. 52364bfead8SKaren Xie */ 52464bfead8SKaren Xie if (nparamsp) 52564bfead8SKaren Xie *nparamsp = nparams; 52664bfead8SKaren Xie if (flowclenp) 52764bfead8SKaren Xie *flowclenp = flowclen; 52864bfead8SKaren Xie 52964bfead8SKaren Xie return flowclen16; 53064bfead8SKaren Xie } 53164bfead8SKaren Xie 53264bfead8SKaren Xie static inline int send_tx_flowc_wr(struct cxgbi_sock *csk) 5337b36b6e0Skxie@chelsio.com { 5347b36b6e0Skxie@chelsio.com struct sk_buff *skb; 5357b36b6e0Skxie@chelsio.com struct fw_flowc_wr *flowc; 53664bfead8SKaren Xie int nparams, flowclen16, flowclen; 5377b36b6e0Skxie@chelsio.com 53864bfead8SKaren Xie flowclen16 = tx_flowc_wr_credits(&nparams, &flowclen); 53924d3f95aSkxie@chelsio.com skb = alloc_wr(flowclen, 0, GFP_ATOMIC); 5407b36b6e0Skxie@chelsio.com flowc = (struct fw_flowc_wr *)skb->head; 5417b36b6e0Skxie@chelsio.com flowc->op_to_nparams = 54264bfead8SKaren Xie htonl(FW_WR_OP_V(FW_FLOWC_WR) | FW_FLOWC_WR_NPARAMS_V(nparams)); 5437b36b6e0Skxie@chelsio.com flowc->flowid_len16 = 54464bfead8SKaren Xie htonl(FW_WR_LEN16_V(flowclen16) | FW_WR_FLOWID_V(csk->tid)); 5457b36b6e0Skxie@chelsio.com flowc->mnemval[0].mnemonic = FW_FLOWC_MNEM_PFNVFN; 546e27d6169Skxie@chelsio.com flowc->mnemval[0].val = htonl(csk->cdev->pfvf); 5477b36b6e0Skxie@chelsio.com flowc->mnemval[1].mnemonic = FW_FLOWC_MNEM_CH; 5487b36b6e0Skxie@chelsio.com flowc->mnemval[1].val = htonl(csk->tx_chan); 5497b36b6e0Skxie@chelsio.com flowc->mnemval[2].mnemonic = FW_FLOWC_MNEM_PORT; 5507b36b6e0Skxie@chelsio.com flowc->mnemval[2].val = htonl(csk->tx_chan); 5517b36b6e0Skxie@chelsio.com flowc->mnemval[3].mnemonic = FW_FLOWC_MNEM_IQID; 5527b36b6e0Skxie@chelsio.com flowc->mnemval[3].val = htonl(csk->rss_qid); 5537b36b6e0Skxie@chelsio.com flowc->mnemval[4].mnemonic = FW_FLOWC_MNEM_SNDNXT; 5547b36b6e0Skxie@chelsio.com flowc->mnemval[4].val = htonl(csk->snd_nxt); 5557b36b6e0Skxie@chelsio.com flowc->mnemval[5].mnemonic = FW_FLOWC_MNEM_RCVNXT; 5567b36b6e0Skxie@chelsio.com flowc->mnemval[5].val = htonl(csk->rcv_nxt); 5577b36b6e0Skxie@chelsio.com flowc->mnemval[6].mnemonic = FW_FLOWC_MNEM_SNDBUF; 55881daf10cSKaren Xie flowc->mnemval[6].val = htonl(csk->snd_win); 5597b36b6e0Skxie@chelsio.com flowc->mnemval[7].mnemonic = FW_FLOWC_MNEM_MSS; 5607b36b6e0Skxie@chelsio.com flowc->mnemval[7].val = htonl(csk->advmss); 5617b36b6e0Skxie@chelsio.com flowc->mnemval[8].mnemonic = 0; 5627b36b6e0Skxie@chelsio.com flowc->mnemval[8].val = 0; 56364bfead8SKaren Xie flowc->mnemval[8].mnemonic = FW_FLOWC_MNEM_TXDATAPLEN_MAX; 56464bfead8SKaren Xie flowc->mnemval[8].val = 16384; 56564bfead8SKaren Xie 5662126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 5677b36b6e0Skxie@chelsio.com 5687b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 5697b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, %u,%u,%u,%u,%u,%u,%u.\n", 5707b36b6e0Skxie@chelsio.com csk, csk->tid, 0, csk->tx_chan, csk->rss_qid, 57181daf10cSKaren Xie csk->snd_nxt, csk->rcv_nxt, csk->snd_win, 5727b36b6e0Skxie@chelsio.com csk->advmss); 5737b36b6e0Skxie@chelsio.com 5747b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 57564bfead8SKaren Xie 57664bfead8SKaren Xie return flowclen16; 5777b36b6e0Skxie@chelsio.com } 5787b36b6e0Skxie@chelsio.com 5797b36b6e0Skxie@chelsio.com static inline void make_tx_data_wr(struct cxgbi_sock *csk, struct sk_buff *skb, 5807b36b6e0Skxie@chelsio.com int dlen, int len, u32 credits, int compl) 5817b36b6e0Skxie@chelsio.com { 5827b36b6e0Skxie@chelsio.com struct fw_ofld_tx_data_wr *req; 5837b36b6e0Skxie@chelsio.com unsigned int submode = cxgbi_skcb_ulp_mode(skb) & 3; 584e2ac9628SHariprasad Shenai unsigned int wr_ulp_mode = 0, val; 5857857c62aSKaren Xie bool imm = is_ofld_imm(skb); 5867b36b6e0Skxie@chelsio.com 5877b36b6e0Skxie@chelsio.com req = (struct fw_ofld_tx_data_wr *)__skb_push(skb, sizeof(*req)); 5887b36b6e0Skxie@chelsio.com 5897857c62aSKaren Xie if (imm) { 590e2ac9628SHariprasad Shenai req->op_to_immdlen = htonl(FW_WR_OP_V(FW_OFLD_TX_DATA_WR) | 591e2ac9628SHariprasad Shenai FW_WR_COMPL_F | 592e2ac9628SHariprasad Shenai FW_WR_IMMDLEN_V(dlen)); 593e2ac9628SHariprasad Shenai req->flowid_len16 = htonl(FW_WR_FLOWID_V(csk->tid) | 594e2ac9628SHariprasad Shenai FW_WR_LEN16_V(credits)); 5957b36b6e0Skxie@chelsio.com } else { 5967b36b6e0Skxie@chelsio.com req->op_to_immdlen = 597e2ac9628SHariprasad Shenai cpu_to_be32(FW_WR_OP_V(FW_OFLD_TX_DATA_WR) | 598e2ac9628SHariprasad Shenai FW_WR_COMPL_F | 599e2ac9628SHariprasad Shenai FW_WR_IMMDLEN_V(0)); 6007b36b6e0Skxie@chelsio.com req->flowid_len16 = 601e2ac9628SHariprasad Shenai cpu_to_be32(FW_WR_FLOWID_V(csk->tid) | 602e2ac9628SHariprasad Shenai FW_WR_LEN16_V(credits)); 6037b36b6e0Skxie@chelsio.com } 6047b36b6e0Skxie@chelsio.com if (submode) 605e2ac9628SHariprasad Shenai wr_ulp_mode = FW_OFLD_TX_DATA_WR_ULPMODE_V(ULP2_MODE_ISCSI) | 606e2ac9628SHariprasad Shenai FW_OFLD_TX_DATA_WR_ULPSUBMODE_V(submode); 607e2ac9628SHariprasad Shenai val = skb_peek(&csk->write_queue) ? 0 : 1; 6086aca4112SKaren Xie req->tunnel_to_proxy = htonl(wr_ulp_mode | 609e2ac9628SHariprasad Shenai FW_OFLD_TX_DATA_WR_SHOVE_V(val)); 6107b36b6e0Skxie@chelsio.com req->plen = htonl(len); 6117b36b6e0Skxie@chelsio.com if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) 6127b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 6137b36b6e0Skxie@chelsio.com } 6147b36b6e0Skxie@chelsio.com 6157b36b6e0Skxie@chelsio.com static void arp_failure_skb_discard(void *handle, struct sk_buff *skb) 6167b36b6e0Skxie@chelsio.com { 6177b36b6e0Skxie@chelsio.com kfree_skb(skb); 6187b36b6e0Skxie@chelsio.com } 6197b36b6e0Skxie@chelsio.com 6207b36b6e0Skxie@chelsio.com static int push_tx_frames(struct cxgbi_sock *csk, int req_completion) 6217b36b6e0Skxie@chelsio.com { 6227b36b6e0Skxie@chelsio.com int total_size = 0; 6237b36b6e0Skxie@chelsio.com struct sk_buff *skb; 6247b36b6e0Skxie@chelsio.com 6257b36b6e0Skxie@chelsio.com if (unlikely(csk->state < CTP_ESTABLISHED || 6267b36b6e0Skxie@chelsio.com csk->state == CTP_CLOSE_WAIT_1 || csk->state >= CTP_ABORTING)) { 6277b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK | 6287b36b6e0Skxie@chelsio.com 1 << CXGBI_DBG_PDU_TX, 6297b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, in closing state.\n", 6307b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 6317b36b6e0Skxie@chelsio.com return 0; 6327b36b6e0Skxie@chelsio.com } 6337b36b6e0Skxie@chelsio.com 6347b36b6e0Skxie@chelsio.com while (csk->wr_cred && (skb = skb_peek(&csk->write_queue)) != NULL) { 6357b36b6e0Skxie@chelsio.com int dlen = skb->len; 6367b36b6e0Skxie@chelsio.com int len = skb->len; 6377b36b6e0Skxie@chelsio.com unsigned int credits_needed; 63864bfead8SKaren Xie int flowclen16 = 0; 6397b36b6e0Skxie@chelsio.com 6407b36b6e0Skxie@chelsio.com skb_reset_transport_header(skb); 6417b36b6e0Skxie@chelsio.com if (is_ofld_imm(skb)) 64284944d8cSKaren Xie credits_needed = DIV_ROUND_UP(dlen, 16); 6437b36b6e0Skxie@chelsio.com else 64484944d8cSKaren Xie credits_needed = DIV_ROUND_UP( 64584944d8cSKaren Xie 8 * calc_tx_flits_ofld(skb), 64684944d8cSKaren Xie 16); 64784944d8cSKaren Xie 64884944d8cSKaren Xie if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) 64984944d8cSKaren Xie credits_needed += DIV_ROUND_UP( 65084944d8cSKaren Xie sizeof(struct fw_ofld_tx_data_wr), 6517b36b6e0Skxie@chelsio.com 16); 6527b36b6e0Skxie@chelsio.com 65364bfead8SKaren Xie /* 65464bfead8SKaren Xie * Assumes the initial credits is large enough to support 65564bfead8SKaren Xie * fw_flowc_wr plus largest possible first payload 65664bfead8SKaren Xie */ 65764bfead8SKaren Xie if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) { 65864bfead8SKaren Xie flowclen16 = send_tx_flowc_wr(csk); 65964bfead8SKaren Xie csk->wr_cred -= flowclen16; 66064bfead8SKaren Xie csk->wr_una_cred += flowclen16; 66164bfead8SKaren Xie cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 66264bfead8SKaren Xie } 66364bfead8SKaren Xie 6647b36b6e0Skxie@chelsio.com if (csk->wr_cred < credits_needed) { 6657b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_TX, 6667b36b6e0Skxie@chelsio.com "csk 0x%p, skb %u/%u, wr %d < %u.\n", 6677b36b6e0Skxie@chelsio.com csk, skb->len, skb->data_len, 6687b36b6e0Skxie@chelsio.com credits_needed, csk->wr_cred); 6697b36b6e0Skxie@chelsio.com break; 6707b36b6e0Skxie@chelsio.com } 6717b36b6e0Skxie@chelsio.com __skb_unlink(skb, &csk->write_queue); 6722126bc5eSKaren Xie set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 67364bfead8SKaren Xie skb->csum = credits_needed + flowclen16; 6747b36b6e0Skxie@chelsio.com csk->wr_cred -= credits_needed; 6757b36b6e0Skxie@chelsio.com csk->wr_una_cred += credits_needed; 6767b36b6e0Skxie@chelsio.com cxgbi_sock_enqueue_wr(csk, skb); 6777b36b6e0Skxie@chelsio.com 6787b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_TX, 6797b36b6e0Skxie@chelsio.com "csk 0x%p, skb %u/%u, wr %d, left %u, unack %u.\n", 6807b36b6e0Skxie@chelsio.com csk, skb->len, skb->data_len, credits_needed, 6817b36b6e0Skxie@chelsio.com csk->wr_cred, csk->wr_una_cred); 6827b36b6e0Skxie@chelsio.com 6837b36b6e0Skxie@chelsio.com if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) { 6847b36b6e0Skxie@chelsio.com len += cxgbi_ulp_extra_len(cxgbi_skcb_ulp_mode(skb)); 6857b36b6e0Skxie@chelsio.com make_tx_data_wr(csk, skb, dlen, len, credits_needed, 6867b36b6e0Skxie@chelsio.com req_completion); 6877b36b6e0Skxie@chelsio.com csk->snd_nxt += len; 6887b36b6e0Skxie@chelsio.com cxgbi_skcb_clear_flag(skb, SKCBF_TX_NEED_HDR); 689fe9b34bfSVarun Prakash } else if (cxgbi_skcb_test_flag(skb, SKCBF_TX_FLAG_COMPL) && 690fe9b34bfSVarun Prakash (csk->wr_una_cred >= (csk->wr_max_cred / 2))) { 691fe9b34bfSVarun Prakash struct cpl_close_con_req *req = 692fe9b34bfSVarun Prakash (struct cpl_close_con_req *)skb->data; 693fe9b34bfSVarun Prakash req->wr.wr_hi |= htonl(FW_WR_COMPL_F); 6947b36b6e0Skxie@chelsio.com } 6957b36b6e0Skxie@chelsio.com total_size += skb->truesize; 6967b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, arp_failure_skb_discard); 6977b36b6e0Skxie@chelsio.com 6987b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_TX, 6997b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, skb 0x%p, %u.\n", 7007b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb, len); 7017b36b6e0Skxie@chelsio.com 7027b36b6e0Skxie@chelsio.com cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t); 7037b36b6e0Skxie@chelsio.com } 7047b36b6e0Skxie@chelsio.com return total_size; 7057b36b6e0Skxie@chelsio.com } 7067b36b6e0Skxie@chelsio.com 7077b36b6e0Skxie@chelsio.com static inline void free_atid(struct cxgbi_sock *csk) 7087b36b6e0Skxie@chelsio.com { 7097b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 7107b36b6e0Skxie@chelsio.com 7117b36b6e0Skxie@chelsio.com if (cxgbi_sock_flag(csk, CTPF_HAS_ATID)) { 7127b36b6e0Skxie@chelsio.com cxgb4_free_atid(lldi->tids, csk->atid); 7137b36b6e0Skxie@chelsio.com cxgbi_sock_clear_flag(csk, CTPF_HAS_ATID); 7147b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 7157b36b6e0Skxie@chelsio.com } 7167b36b6e0Skxie@chelsio.com } 7177b36b6e0Skxie@chelsio.com 7187b36b6e0Skxie@chelsio.com static void do_act_establish(struct cxgbi_device *cdev, struct sk_buff *skb) 7197b36b6e0Skxie@chelsio.com { 7207b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 7217b36b6e0Skxie@chelsio.com struct cpl_act_establish *req = (struct cpl_act_establish *)skb->data; 7227b36b6e0Skxie@chelsio.com unsigned short tcp_opt = ntohs(req->tcp_opt); 7237b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 7246c53e938SHariprasad Shenai unsigned int atid = TID_TID_G(ntohl(req->tos_atid)); 7257b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 7267b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 7277b36b6e0Skxie@chelsio.com u32 rcv_isn = be32_to_cpu(req->rcv_isn); 7287b36b6e0Skxie@chelsio.com 7297b36b6e0Skxie@chelsio.com csk = lookup_atid(t, atid); 7307b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 7317b36b6e0Skxie@chelsio.com pr_err("NO conn. for atid %u, cdev 0x%p.\n", atid, cdev); 7327b36b6e0Skxie@chelsio.com goto rel_skb; 7337b36b6e0Skxie@chelsio.com } 7347b36b6e0Skxie@chelsio.com 735e27d6169Skxie@chelsio.com if (csk->atid != atid) { 736e27d6169Skxie@chelsio.com pr_err("bad conn atid %u, csk 0x%p,%u,0x%lx,tid %u, atid %u.\n", 737e27d6169Skxie@chelsio.com atid, csk, csk->state, csk->flags, csk->tid, csk->atid); 738e27d6169Skxie@chelsio.com goto rel_skb; 739e27d6169Skxie@chelsio.com } 740e27d6169Skxie@chelsio.com 741759a0cc5SAnish Bhatt pr_info_ipaddr("atid 0x%x, tid 0x%x, csk 0x%p,%u,0x%lx, isn %u.\n", 742759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 743759a0cc5SAnish Bhatt atid, tid, csk, csk->state, csk->flags, rcv_isn); 744759a0cc5SAnish Bhatt 745759a0cc5SAnish Bhatt module_put(THIS_MODULE); 7467b36b6e0Skxie@chelsio.com 7477b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 7487b36b6e0Skxie@chelsio.com csk->tid = tid; 7497b36b6e0Skxie@chelsio.com cxgb4_insert_tid(lldi->tids, csk, tid); 7507b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_HAS_TID); 7517b36b6e0Skxie@chelsio.com 7527b36b6e0Skxie@chelsio.com free_atid(csk); 7537b36b6e0Skxie@chelsio.com 7547b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 7557b36b6e0Skxie@chelsio.com if (unlikely(csk->state != CTP_ACTIVE_OPEN)) 7567b36b6e0Skxie@chelsio.com pr_info("csk 0x%p,%u,0x%lx,%u, got EST.\n", 7577b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 7587b36b6e0Skxie@chelsio.com 7597b36b6e0Skxie@chelsio.com if (csk->retry_timer.function) { 7607b36b6e0Skxie@chelsio.com del_timer(&csk->retry_timer); 7617b36b6e0Skxie@chelsio.com csk->retry_timer.function = NULL; 7627b36b6e0Skxie@chelsio.com } 7637b36b6e0Skxie@chelsio.com 7647b36b6e0Skxie@chelsio.com csk->copied_seq = csk->rcv_wup = csk->rcv_nxt = rcv_isn; 7657b36b6e0Skxie@chelsio.com /* 7667b36b6e0Skxie@chelsio.com * Causes the first RX_DATA_ACK to supply any Rx credits we couldn't 7677b36b6e0Skxie@chelsio.com * pass through opt0. 7687b36b6e0Skxie@chelsio.com */ 76981daf10cSKaren Xie if (csk->rcv_win > (RCV_BUFSIZ_MASK << 10)) 77081daf10cSKaren Xie csk->rcv_wup -= csk->rcv_win - (RCV_BUFSIZ_MASK << 10); 7717b36b6e0Skxie@chelsio.com 7726c53e938SHariprasad Shenai csk->advmss = lldi->mtus[TCPOPT_MSS_G(tcp_opt)] - 40; 7736c53e938SHariprasad Shenai if (TCPOPT_TSTAMP_G(tcp_opt)) 7747b36b6e0Skxie@chelsio.com csk->advmss -= 12; 7757b36b6e0Skxie@chelsio.com if (csk->advmss < 128) 7767b36b6e0Skxie@chelsio.com csk->advmss = 128; 7777b36b6e0Skxie@chelsio.com 7787b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 7797b36b6e0Skxie@chelsio.com "csk 0x%p, mss_idx %u, advmss %u.\n", 7806c53e938SHariprasad Shenai csk, TCPOPT_MSS_G(tcp_opt), csk->advmss); 7817b36b6e0Skxie@chelsio.com 7827b36b6e0Skxie@chelsio.com cxgbi_sock_established(csk, ntohl(req->snd_isn), ntohs(req->tcp_opt)); 7837b36b6e0Skxie@chelsio.com 7847b36b6e0Skxie@chelsio.com if (unlikely(cxgbi_sock_flag(csk, CTPF_ACTIVE_CLOSE_NEEDED))) 7857b36b6e0Skxie@chelsio.com send_abort_req(csk); 7867b36b6e0Skxie@chelsio.com else { 7877b36b6e0Skxie@chelsio.com if (skb_queue_len(&csk->write_queue)) 7887b36b6e0Skxie@chelsio.com push_tx_frames(csk, 0); 7897b36b6e0Skxie@chelsio.com cxgbi_conn_tx_open(csk); 7907b36b6e0Skxie@chelsio.com } 7917b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 7927b36b6e0Skxie@chelsio.com 7937b36b6e0Skxie@chelsio.com rel_skb: 7947b36b6e0Skxie@chelsio.com __kfree_skb(skb); 7957b36b6e0Skxie@chelsio.com } 7967b36b6e0Skxie@chelsio.com 7977b36b6e0Skxie@chelsio.com static int act_open_rpl_status_to_errno(int status) 7987b36b6e0Skxie@chelsio.com { 7997b36b6e0Skxie@chelsio.com switch (status) { 8007b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_RESET: 8017b36b6e0Skxie@chelsio.com return -ECONNREFUSED; 8027b36b6e0Skxie@chelsio.com case CPL_ERR_ARP_MISS: 8037b36b6e0Skxie@chelsio.com return -EHOSTUNREACH; 8047b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_TIMEDOUT: 8057b36b6e0Skxie@chelsio.com return -ETIMEDOUT; 8067b36b6e0Skxie@chelsio.com case CPL_ERR_TCAM_FULL: 8077b36b6e0Skxie@chelsio.com return -ENOMEM; 8087b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_EXIST: 8097b36b6e0Skxie@chelsio.com return -EADDRINUSE; 8107b36b6e0Skxie@chelsio.com default: 8117b36b6e0Skxie@chelsio.com return -EIO; 8127b36b6e0Skxie@chelsio.com } 8137b36b6e0Skxie@chelsio.com } 8147b36b6e0Skxie@chelsio.com 8157b36b6e0Skxie@chelsio.com static void csk_act_open_retry_timer(unsigned long data) 8167b36b6e0Skxie@chelsio.com { 817001586a7SAnish Bhatt struct sk_buff *skb = NULL; 8187b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk = (struct cxgbi_sock *)data; 8193bd3e8bfSKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev); 820759a0cc5SAnish Bhatt void (*send_act_open_func)(struct cxgbi_sock *, struct sk_buff *, 821759a0cc5SAnish Bhatt struct l2t_entry *); 822759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type), size, size6; 8237b36b6e0Skxie@chelsio.com 8247b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 8257b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 8267b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 8277b36b6e0Skxie@chelsio.com 8287b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 8297b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 830759a0cc5SAnish Bhatt 831759a0cc5SAnish Bhatt if (t4) { 832759a0cc5SAnish Bhatt size = sizeof(struct cpl_act_open_req); 833759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_act_open_req6); 834759a0cc5SAnish Bhatt } else { 835759a0cc5SAnish Bhatt size = sizeof(struct cpl_t5_act_open_req); 836759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_t5_act_open_req6); 837759a0cc5SAnish Bhatt } 838759a0cc5SAnish Bhatt 839759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) { 840759a0cc5SAnish Bhatt send_act_open_func = send_act_open_req; 841759a0cc5SAnish Bhatt skb = alloc_wr(size, 0, GFP_ATOMIC); 842f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 843759a0cc5SAnish Bhatt } else { 844759a0cc5SAnish Bhatt send_act_open_func = send_act_open_req6; 845759a0cc5SAnish Bhatt skb = alloc_wr(size6, 0, GFP_ATOMIC); 846f42bb57cSAnish Bhatt #endif 847759a0cc5SAnish Bhatt } 848759a0cc5SAnish Bhatt 8497b36b6e0Skxie@chelsio.com if (!skb) 8507b36b6e0Skxie@chelsio.com cxgbi_sock_fail_act_open(csk, -ENOMEM); 8517b36b6e0Skxie@chelsio.com else { 8527b36b6e0Skxie@chelsio.com skb->sk = (struct sock *)csk; 8537b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, 8547b36b6e0Skxie@chelsio.com cxgbi_sock_act_open_req_arp_failure); 855759a0cc5SAnish Bhatt send_act_open_func(csk, skb, csk->l2t); 8567b36b6e0Skxie@chelsio.com } 857759a0cc5SAnish Bhatt 8587b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 8597b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 860759a0cc5SAnish Bhatt 8617b36b6e0Skxie@chelsio.com } 8627b36b6e0Skxie@chelsio.com 863928567adSKaren Xie static inline bool is_neg_adv(unsigned int status) 864928567adSKaren Xie { 865928567adSKaren Xie return status == CPL_ERR_RTX_NEG_ADVICE || 866928567adSKaren Xie status == CPL_ERR_KEEPALV_NEG_ADVICE || 867928567adSKaren Xie status == CPL_ERR_PERSIST_NEG_ADVICE; 868928567adSKaren Xie } 869928567adSKaren Xie 8707b36b6e0Skxie@chelsio.com static void do_act_open_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 8717b36b6e0Skxie@chelsio.com { 8727b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 8737b36b6e0Skxie@chelsio.com struct cpl_act_open_rpl *rpl = (struct cpl_act_open_rpl *)skb->data; 8747b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 8757b36b6e0Skxie@chelsio.com unsigned int atid = 8766c53e938SHariprasad Shenai TID_TID_G(AOPEN_ATID_G(be32_to_cpu(rpl->atid_status))); 8776c53e938SHariprasad Shenai unsigned int status = AOPEN_STATUS_G(be32_to_cpu(rpl->atid_status)); 8787b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 8797b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 8807b36b6e0Skxie@chelsio.com 8817b36b6e0Skxie@chelsio.com csk = lookup_atid(t, atid); 8827b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 8837b36b6e0Skxie@chelsio.com pr_err("NO matching conn. atid %u, tid %u.\n", atid, tid); 8847b36b6e0Skxie@chelsio.com goto rel_skb; 8857b36b6e0Skxie@chelsio.com } 8867b36b6e0Skxie@chelsio.com 887759a0cc5SAnish Bhatt pr_info_ipaddr("tid %u/%u, status %u.\n" 888759a0cc5SAnish Bhatt "csk 0x%p,%u,0x%lx. ", (&csk->saddr), (&csk->daddr), 889e27d6169Skxie@chelsio.com atid, tid, status, csk, csk->state, csk->flags); 8907b36b6e0Skxie@chelsio.com 891928567adSKaren Xie if (is_neg_adv(status)) 892150cca7cSKaren Xie goto rel_skb; 893150cca7cSKaren Xie 894ee7255adSAnish Bhatt module_put(THIS_MODULE); 895ee7255adSAnish Bhatt 8967b36b6e0Skxie@chelsio.com if (status && status != CPL_ERR_TCAM_FULL && 8977b36b6e0Skxie@chelsio.com status != CPL_ERR_CONN_EXIST && 8987b36b6e0Skxie@chelsio.com status != CPL_ERR_ARP_MISS) 8997b36b6e0Skxie@chelsio.com cxgb4_remove_tid(lldi->tids, csk->port_id, GET_TID(rpl)); 9007b36b6e0Skxie@chelsio.com 9017b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 9027b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 9037b36b6e0Skxie@chelsio.com 9047b36b6e0Skxie@chelsio.com if (status == CPL_ERR_CONN_EXIST && 9057b36b6e0Skxie@chelsio.com csk->retry_timer.function != csk_act_open_retry_timer) { 9067b36b6e0Skxie@chelsio.com csk->retry_timer.function = csk_act_open_retry_timer; 9077b36b6e0Skxie@chelsio.com mod_timer(&csk->retry_timer, jiffies + HZ / 2); 9087b36b6e0Skxie@chelsio.com } else 9097b36b6e0Skxie@chelsio.com cxgbi_sock_fail_act_open(csk, 9107b36b6e0Skxie@chelsio.com act_open_rpl_status_to_errno(status)); 9117b36b6e0Skxie@chelsio.com 9127b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 9137b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 9147b36b6e0Skxie@chelsio.com rel_skb: 9157b36b6e0Skxie@chelsio.com __kfree_skb(skb); 9167b36b6e0Skxie@chelsio.com } 9177b36b6e0Skxie@chelsio.com 9187b36b6e0Skxie@chelsio.com static void do_peer_close(struct cxgbi_device *cdev, struct sk_buff *skb) 9197b36b6e0Skxie@chelsio.com { 9207b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 9217b36b6e0Skxie@chelsio.com struct cpl_peer_close *req = (struct cpl_peer_close *)skb->data; 9227b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 9237b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 9247b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 9257b36b6e0Skxie@chelsio.com 9267b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 9277b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 9287b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 9297b36b6e0Skxie@chelsio.com goto rel_skb; 9307b36b6e0Skxie@chelsio.com } 931759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n", 932759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 9337b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 9347b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_peer_close(csk); 9357b36b6e0Skxie@chelsio.com rel_skb: 9367b36b6e0Skxie@chelsio.com __kfree_skb(skb); 9377b36b6e0Skxie@chelsio.com } 9387b36b6e0Skxie@chelsio.com 9397b36b6e0Skxie@chelsio.com static void do_close_con_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 9407b36b6e0Skxie@chelsio.com { 9417b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 9427b36b6e0Skxie@chelsio.com struct cpl_close_con_rpl *rpl = (struct cpl_close_con_rpl *)skb->data; 9437b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 9447b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 9457b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 9467b36b6e0Skxie@chelsio.com 9477b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 9487b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 9497b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 9507b36b6e0Skxie@chelsio.com goto rel_skb; 9517b36b6e0Skxie@chelsio.com } 952759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n", 953759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 9547b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 9557b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_close_conn_rpl(csk, ntohl(rpl->snd_nxt)); 9567b36b6e0Skxie@chelsio.com rel_skb: 9577b36b6e0Skxie@chelsio.com __kfree_skb(skb); 9587b36b6e0Skxie@chelsio.com } 9597b36b6e0Skxie@chelsio.com 9607b36b6e0Skxie@chelsio.com static int abort_status_to_errno(struct cxgbi_sock *csk, int abort_reason, 9617b36b6e0Skxie@chelsio.com int *need_rst) 9627b36b6e0Skxie@chelsio.com { 9637b36b6e0Skxie@chelsio.com switch (abort_reason) { 9647b36b6e0Skxie@chelsio.com case CPL_ERR_BAD_SYN: /* fall through */ 9657b36b6e0Skxie@chelsio.com case CPL_ERR_CONN_RESET: 9667b36b6e0Skxie@chelsio.com return csk->state > CTP_ESTABLISHED ? 9677b36b6e0Skxie@chelsio.com -EPIPE : -ECONNRESET; 9687b36b6e0Skxie@chelsio.com case CPL_ERR_XMIT_TIMEDOUT: 9697b36b6e0Skxie@chelsio.com case CPL_ERR_PERSIST_TIMEDOUT: 9707b36b6e0Skxie@chelsio.com case CPL_ERR_FINWAIT2_TIMEDOUT: 9717b36b6e0Skxie@chelsio.com case CPL_ERR_KEEPALIVE_TIMEDOUT: 9727b36b6e0Skxie@chelsio.com return -ETIMEDOUT; 9737b36b6e0Skxie@chelsio.com default: 9747b36b6e0Skxie@chelsio.com return -EIO; 9757b36b6e0Skxie@chelsio.com } 9767b36b6e0Skxie@chelsio.com } 9777b36b6e0Skxie@chelsio.com 9787b36b6e0Skxie@chelsio.com static void do_abort_req_rss(struct cxgbi_device *cdev, struct sk_buff *skb) 9797b36b6e0Skxie@chelsio.com { 9807b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 9817b36b6e0Skxie@chelsio.com struct cpl_abort_req_rss *req = (struct cpl_abort_req_rss *)skb->data; 9827b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(req); 9837b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 9847b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 9857b36b6e0Skxie@chelsio.com int rst_status = CPL_ABORT_NO_RST; 9867b36b6e0Skxie@chelsio.com 9877b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 9887b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 9897b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 9907b36b6e0Skxie@chelsio.com goto rel_skb; 9917b36b6e0Skxie@chelsio.com } 9927b36b6e0Skxie@chelsio.com 993759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n", 994759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), 9957b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, req->status); 9967b36b6e0Skxie@chelsio.com 997928567adSKaren Xie if (is_neg_adv(req->status)) 9987b36b6e0Skxie@chelsio.com goto rel_skb; 9997b36b6e0Skxie@chelsio.com 10007b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 10017b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 10027b36b6e0Skxie@chelsio.com 10037b07bf24SAnish Bhatt cxgbi_sock_clear_flag(csk, CTPF_ABORT_REQ_RCVD); 10047b07bf24SAnish Bhatt 10057b07bf24SAnish Bhatt if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) { 10067b07bf24SAnish Bhatt send_tx_flowc_wr(csk); 10077b07bf24SAnish Bhatt cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT); 10087b36b6e0Skxie@chelsio.com } 10097b36b6e0Skxie@chelsio.com 10107b07bf24SAnish Bhatt cxgbi_sock_set_flag(csk, CTPF_ABORT_REQ_RCVD); 10117b07bf24SAnish Bhatt cxgbi_sock_set_state(csk, CTP_ABORTING); 10127b07bf24SAnish Bhatt 10137b36b6e0Skxie@chelsio.com send_abort_rpl(csk, rst_status); 10147b36b6e0Skxie@chelsio.com 10157b36b6e0Skxie@chelsio.com if (!cxgbi_sock_flag(csk, CTPF_ABORT_RPL_PENDING)) { 10167b36b6e0Skxie@chelsio.com csk->err = abort_status_to_errno(csk, req->status, &rst_status); 10177b36b6e0Skxie@chelsio.com cxgbi_sock_closed(csk); 10187b36b6e0Skxie@chelsio.com } 10197b07bf24SAnish Bhatt 10207b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 10217b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 10227b36b6e0Skxie@chelsio.com rel_skb: 10237b36b6e0Skxie@chelsio.com __kfree_skb(skb); 10247b36b6e0Skxie@chelsio.com } 10257b36b6e0Skxie@chelsio.com 10267b36b6e0Skxie@chelsio.com static void do_abort_rpl_rss(struct cxgbi_device *cdev, struct sk_buff *skb) 10277b36b6e0Skxie@chelsio.com { 10287b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 10297b36b6e0Skxie@chelsio.com struct cpl_abort_rpl_rss *rpl = (struct cpl_abort_rpl_rss *)skb->data; 10307b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 10317b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 10327b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 10337b36b6e0Skxie@chelsio.com 10347b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 10357b36b6e0Skxie@chelsio.com if (!csk) 10367b36b6e0Skxie@chelsio.com goto rel_skb; 10377b36b6e0Skxie@chelsio.com 1038759a0cc5SAnish Bhatt if (csk) 1039759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n", 1040759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), csk, 1041759a0cc5SAnish Bhatt csk->state, csk->flags, csk->tid, rpl->status); 10427b36b6e0Skxie@chelsio.com 10437b36b6e0Skxie@chelsio.com if (rpl->status == CPL_ERR_ABORT_FAILED) 10447b36b6e0Skxie@chelsio.com goto rel_skb; 10457b36b6e0Skxie@chelsio.com 10467b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_abort_rpl(csk); 10477b36b6e0Skxie@chelsio.com rel_skb: 10487b36b6e0Skxie@chelsio.com __kfree_skb(skb); 10497b36b6e0Skxie@chelsio.com } 10507b36b6e0Skxie@chelsio.com 1051f7bcd2e1SKaren Xie static void do_rx_data(struct cxgbi_device *cdev, struct sk_buff *skb) 1052f7bcd2e1SKaren Xie { 1053f7bcd2e1SKaren Xie struct cxgbi_sock *csk; 1054f7bcd2e1SKaren Xie struct cpl_rx_data *cpl = (struct cpl_rx_data *)skb->data; 1055f7bcd2e1SKaren Xie unsigned int tid = GET_TID(cpl); 1056f7bcd2e1SKaren Xie struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 1057f7bcd2e1SKaren Xie struct tid_info *t = lldi->tids; 1058f7bcd2e1SKaren Xie 1059f7bcd2e1SKaren Xie csk = lookup_tid(t, tid); 1060f7bcd2e1SKaren Xie if (!csk) { 1061f7bcd2e1SKaren Xie pr_err("can't find connection for tid %u.\n", tid); 1062f7bcd2e1SKaren Xie } else { 1063f7bcd2e1SKaren Xie /* not expecting this, reset the connection. */ 1064f7bcd2e1SKaren Xie pr_err("csk 0x%p, tid %u, rcv cpl_rx_data.\n", csk, tid); 1065f7bcd2e1SKaren Xie spin_lock_bh(&csk->lock); 1066f7bcd2e1SKaren Xie send_abort_req(csk); 1067f7bcd2e1SKaren Xie spin_unlock_bh(&csk->lock); 1068f7bcd2e1SKaren Xie } 1069f7bcd2e1SKaren Xie __kfree_skb(skb); 1070f7bcd2e1SKaren Xie } 1071f7bcd2e1SKaren Xie 10727b36b6e0Skxie@chelsio.com static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb) 10737b36b6e0Skxie@chelsio.com { 10747b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 10757b36b6e0Skxie@chelsio.com struct cpl_iscsi_hdr *cpl = (struct cpl_iscsi_hdr *)skb->data; 10767b36b6e0Skxie@chelsio.com unsigned short pdu_len_ddp = be16_to_cpu(cpl->pdu_len_ddp); 10777b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(cpl); 10787b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 10797b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 10807b36b6e0Skxie@chelsio.com 10817b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 10827b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 10837b36b6e0Skxie@chelsio.com pr_err("can't find conn. for tid %u.\n", tid); 10847b36b6e0Skxie@chelsio.com goto rel_skb; 10857b36b6e0Skxie@chelsio.com } 10867b36b6e0Skxie@chelsio.com 10877b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 10887b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p,%u, 0x%x.\n", 10897b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb, skb->len, 10907b36b6e0Skxie@chelsio.com pdu_len_ddp); 10917b36b6e0Skxie@chelsio.com 10927b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 10937b36b6e0Skxie@chelsio.com 10947b36b6e0Skxie@chelsio.com if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) { 10957b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 10967b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, bad state.\n", 10977b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 10987b36b6e0Skxie@chelsio.com if (csk->state != CTP_ABORTING) 10997b36b6e0Skxie@chelsio.com goto abort_conn; 11007b36b6e0Skxie@chelsio.com else 11017b36b6e0Skxie@chelsio.com goto discard; 11027b36b6e0Skxie@chelsio.com } 11037b36b6e0Skxie@chelsio.com 11047b36b6e0Skxie@chelsio.com cxgbi_skcb_tcp_seq(skb) = ntohl(cpl->seq); 1105e27d6169Skxie@chelsio.com cxgbi_skcb_flags(skb) = 0; 1106e27d6169Skxie@chelsio.com 11077b36b6e0Skxie@chelsio.com skb_reset_transport_header(skb); 11087b36b6e0Skxie@chelsio.com __skb_pull(skb, sizeof(*cpl)); 11097b36b6e0Skxie@chelsio.com __pskb_trim(skb, ntohs(cpl->len)); 11107b36b6e0Skxie@chelsio.com 11117b36b6e0Skxie@chelsio.com if (!csk->skb_ulp_lhdr) { 11127b36b6e0Skxie@chelsio.com unsigned char *bhs; 11133bd3e8bfSKaren Xie unsigned int hlen, dlen, plen; 11147b36b6e0Skxie@chelsio.com 11157b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 11167b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p header.\n", 11177b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, skb); 11187b36b6e0Skxie@chelsio.com csk->skb_ulp_lhdr = skb; 1119e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(skb, SKCBF_RX_HDR); 11207b36b6e0Skxie@chelsio.com 1121e27d6169Skxie@chelsio.com if (cxgbi_skcb_tcp_seq(skb) != csk->rcv_nxt) { 11227b36b6e0Skxie@chelsio.com pr_info("tid %u, CPL_ISCSI_HDR, bad seq, 0x%x/0x%x.\n", 1123e27d6169Skxie@chelsio.com csk->tid, cxgbi_skcb_tcp_seq(skb), 11247b36b6e0Skxie@chelsio.com csk->rcv_nxt); 11257b36b6e0Skxie@chelsio.com goto abort_conn; 11267b36b6e0Skxie@chelsio.com } 11277b36b6e0Skxie@chelsio.com 1128e27d6169Skxie@chelsio.com bhs = skb->data; 11297b36b6e0Skxie@chelsio.com hlen = ntohs(cpl->len); 11307b36b6e0Skxie@chelsio.com dlen = ntohl(*(unsigned int *)(bhs + 4)) & 0xFFFFFF; 11317b36b6e0Skxie@chelsio.com 1132bdc590b9SHariprasad Shenai plen = ISCSI_PDU_LEN_G(pdu_len_ddp); 11333bd3e8bfSKaren Xie if (is_t4(lldi->adapter_type)) 11343bd3e8bfSKaren Xie plen -= 40; 11353bd3e8bfSKaren Xie 11363bd3e8bfSKaren Xie if ((hlen + dlen) != plen) { 11377b36b6e0Skxie@chelsio.com pr_info("tid 0x%x, CPL_ISCSI_HDR, pdu len " 11387b36b6e0Skxie@chelsio.com "mismatch %u != %u + %u, seq 0x%x.\n", 11393bd3e8bfSKaren Xie csk->tid, plen, hlen, dlen, 11403bd3e8bfSKaren Xie cxgbi_skcb_tcp_seq(skb)); 11417b36b6e0Skxie@chelsio.com goto abort_conn; 11427b36b6e0Skxie@chelsio.com } 11437b36b6e0Skxie@chelsio.com 11447b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_pdulen(skb) = (hlen + dlen + 3) & (~0x3); 11457b36b6e0Skxie@chelsio.com if (dlen) 11467b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_pdulen(skb) += csk->dcrc_len; 11477b36b6e0Skxie@chelsio.com csk->rcv_nxt += cxgbi_skcb_rx_pdulen(skb); 11487b36b6e0Skxie@chelsio.com 11497b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 11507b36b6e0Skxie@chelsio.com "csk 0x%p, skb 0x%p, 0x%x,%u+%u,0x%x,0x%x.\n", 11517b36b6e0Skxie@chelsio.com csk, skb, *bhs, hlen, dlen, 11527b36b6e0Skxie@chelsio.com ntohl(*((unsigned int *)(bhs + 16))), 11537b36b6e0Skxie@chelsio.com ntohl(*((unsigned int *)(bhs + 24)))); 11547b36b6e0Skxie@chelsio.com 11557b36b6e0Skxie@chelsio.com } else { 1156e27d6169Skxie@chelsio.com struct sk_buff *lskb = csk->skb_ulp_lhdr; 11577b36b6e0Skxie@chelsio.com 1158e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA); 11597b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 11607b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, skb 0x%p data, 0x%p.\n", 11617b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, skb, lskb); 11627b36b6e0Skxie@chelsio.com } 11637b36b6e0Skxie@chelsio.com 11647b36b6e0Skxie@chelsio.com __skb_queue_tail(&csk->receive_queue, skb); 11657b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 11667b36b6e0Skxie@chelsio.com return; 11677b36b6e0Skxie@chelsio.com 11687b36b6e0Skxie@chelsio.com abort_conn: 11697b36b6e0Skxie@chelsio.com send_abort_req(csk); 11707b36b6e0Skxie@chelsio.com discard: 11717b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 11727b36b6e0Skxie@chelsio.com rel_skb: 11737b36b6e0Skxie@chelsio.com __kfree_skb(skb); 11747b36b6e0Skxie@chelsio.com } 11757b36b6e0Skxie@chelsio.com 11767b36b6e0Skxie@chelsio.com static void do_rx_data_ddp(struct cxgbi_device *cdev, 11777b36b6e0Skxie@chelsio.com struct sk_buff *skb) 11787b36b6e0Skxie@chelsio.com { 11797b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 11807b36b6e0Skxie@chelsio.com struct sk_buff *lskb; 11817b36b6e0Skxie@chelsio.com struct cpl_rx_data_ddp *rpl = (struct cpl_rx_data_ddp *)skb->data; 11827b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 11837b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 11847b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 11857b36b6e0Skxie@chelsio.com unsigned int status = ntohl(rpl->ddpvld); 11867b36b6e0Skxie@chelsio.com 11877b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 11887b36b6e0Skxie@chelsio.com if (unlikely(!csk)) { 11897b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 11907b36b6e0Skxie@chelsio.com goto rel_skb; 11917b36b6e0Skxie@chelsio.com } 11927b36b6e0Skxie@chelsio.com 11937b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX, 11947b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx, skb 0x%p,0x%x, lhdr 0x%p.\n", 11957b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, skb, status, csk->skb_ulp_lhdr); 11967b36b6e0Skxie@chelsio.com 11977b36b6e0Skxie@chelsio.com spin_lock_bh(&csk->lock); 11987b36b6e0Skxie@chelsio.com 11997b36b6e0Skxie@chelsio.com if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) { 12007b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 12017b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u, bad state.\n", 12027b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 12037b36b6e0Skxie@chelsio.com if (csk->state != CTP_ABORTING) 12047b36b6e0Skxie@chelsio.com goto abort_conn; 12057b36b6e0Skxie@chelsio.com else 12067b36b6e0Skxie@chelsio.com goto discard; 12077b36b6e0Skxie@chelsio.com } 12087b36b6e0Skxie@chelsio.com 12097b36b6e0Skxie@chelsio.com if (!csk->skb_ulp_lhdr) { 12107b36b6e0Skxie@chelsio.com pr_err("tid 0x%x, rcv RX_DATA_DDP w/o pdu bhs.\n", csk->tid); 12117b36b6e0Skxie@chelsio.com goto abort_conn; 12127b36b6e0Skxie@chelsio.com } 12137b36b6e0Skxie@chelsio.com 12147b36b6e0Skxie@chelsio.com lskb = csk->skb_ulp_lhdr; 12157b36b6e0Skxie@chelsio.com csk->skb_ulp_lhdr = NULL; 12167b36b6e0Skxie@chelsio.com 12177b36b6e0Skxie@chelsio.com cxgbi_skcb_rx_ddigest(lskb) = ntohl(rpl->ulp_crc); 12187b36b6e0Skxie@chelsio.com 12197b36b6e0Skxie@chelsio.com if (ntohs(rpl->len) != cxgbi_skcb_rx_pdulen(lskb)) 12207b36b6e0Skxie@chelsio.com pr_info("tid 0x%x, RX_DATA_DDP pdulen %u != %u.\n", 12217b36b6e0Skxie@chelsio.com csk->tid, ntohs(rpl->len), cxgbi_skcb_rx_pdulen(lskb)); 12227b36b6e0Skxie@chelsio.com 12237b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_HCRC_SHIFT)) { 1224e27d6169Skxie@chelsio.com pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, hcrc bad 0x%lx.\n", 1225e27d6169Skxie@chelsio.com csk, lskb, status, cxgbi_skcb_flags(lskb)); 12267b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_HCRC_ERR); 12277b36b6e0Skxie@chelsio.com } 12287b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_DCRC_SHIFT)) { 1229e27d6169Skxie@chelsio.com pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, dcrc bad 0x%lx.\n", 1230e27d6169Skxie@chelsio.com csk, lskb, status, cxgbi_skcb_flags(lskb)); 12317b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DCRC_ERR); 12327b36b6e0Skxie@chelsio.com } 12337b36b6e0Skxie@chelsio.com if (status & (1 << CPL_RX_DDP_STATUS_PAD_SHIFT)) { 12347b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 12357b36b6e0Skxie@chelsio.com "csk 0x%p, lhdr 0x%p, status 0x%x, pad bad.\n", 12367b36b6e0Skxie@chelsio.com csk, lskb, status); 12377b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_PAD_ERR); 12387b36b6e0Skxie@chelsio.com } 12397b36b6e0Skxie@chelsio.com if ((status & (1 << CPL_RX_DDP_STATUS_DDP_SHIFT)) && 12407b36b6e0Skxie@chelsio.com !cxgbi_skcb_test_flag(lskb, SKCBF_RX_DATA)) { 12417b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 12427b36b6e0Skxie@chelsio.com "csk 0x%p, lhdr 0x%p, 0x%x, data ddp'ed.\n", 12437b36b6e0Skxie@chelsio.com csk, lskb, status); 12447b36b6e0Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA_DDPD); 12457b36b6e0Skxie@chelsio.com } 12467b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_PDU_RX, 12477b36b6e0Skxie@chelsio.com "csk 0x%p, lskb 0x%p, f 0x%lx.\n", 12487b36b6e0Skxie@chelsio.com csk, lskb, cxgbi_skcb_flags(lskb)); 12497b36b6e0Skxie@chelsio.com 1250e27d6169Skxie@chelsio.com cxgbi_skcb_set_flag(lskb, SKCBF_RX_STATUS); 12517b36b6e0Skxie@chelsio.com cxgbi_conn_pdu_ready(csk); 12527b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 12537b36b6e0Skxie@chelsio.com goto rel_skb; 12547b36b6e0Skxie@chelsio.com 12557b36b6e0Skxie@chelsio.com abort_conn: 12567b36b6e0Skxie@chelsio.com send_abort_req(csk); 12577b36b6e0Skxie@chelsio.com discard: 12587b36b6e0Skxie@chelsio.com spin_unlock_bh(&csk->lock); 12597b36b6e0Skxie@chelsio.com rel_skb: 12607b36b6e0Skxie@chelsio.com __kfree_skb(skb); 12617b36b6e0Skxie@chelsio.com } 12627b36b6e0Skxie@chelsio.com 12637b36b6e0Skxie@chelsio.com static void do_fw4_ack(struct cxgbi_device *cdev, struct sk_buff *skb) 12647b36b6e0Skxie@chelsio.com { 12657b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 12667b36b6e0Skxie@chelsio.com struct cpl_fw4_ack *rpl = (struct cpl_fw4_ack *)skb->data; 12677b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 12687b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 12697b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 12707b36b6e0Skxie@chelsio.com 12717b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 12727b36b6e0Skxie@chelsio.com if (unlikely(!csk)) 12737b36b6e0Skxie@chelsio.com pr_err("can't find connection for tid %u.\n", tid); 12747b36b6e0Skxie@chelsio.com else { 12757b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 12767b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 12777b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 12787b36b6e0Skxie@chelsio.com cxgbi_sock_rcv_wr_ack(csk, rpl->credits, ntohl(rpl->snd_una), 12797b36b6e0Skxie@chelsio.com rpl->seq_vld); 12807b36b6e0Skxie@chelsio.com } 12817b36b6e0Skxie@chelsio.com __kfree_skb(skb); 12827b36b6e0Skxie@chelsio.com } 12837b36b6e0Skxie@chelsio.com 12847b36b6e0Skxie@chelsio.com static void do_set_tcb_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) 12857b36b6e0Skxie@chelsio.com { 12867b36b6e0Skxie@chelsio.com struct cpl_set_tcb_rpl *rpl = (struct cpl_set_tcb_rpl *)skb->data; 12877b36b6e0Skxie@chelsio.com unsigned int tid = GET_TID(rpl); 12887b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 12897b36b6e0Skxie@chelsio.com struct tid_info *t = lldi->tids; 12907b36b6e0Skxie@chelsio.com struct cxgbi_sock *csk; 12917b36b6e0Skxie@chelsio.com 12927b36b6e0Skxie@chelsio.com csk = lookup_tid(t, tid); 12937b36b6e0Skxie@chelsio.com if (!csk) 12947b36b6e0Skxie@chelsio.com pr_err("can't find conn. for tid %u.\n", tid); 12957b36b6e0Skxie@chelsio.com 12967b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 12977b36b6e0Skxie@chelsio.com "csk 0x%p,%u,%lx,%u, status 0x%x.\n", 12987b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid, rpl->status); 12997b36b6e0Skxie@chelsio.com 13007b36b6e0Skxie@chelsio.com if (rpl->status != CPL_ERR_NONE) 13017b36b6e0Skxie@chelsio.com pr_err("csk 0x%p,%u, SET_TCB_RPL status %u.\n", 13027b36b6e0Skxie@chelsio.com csk, tid, rpl->status); 13037b36b6e0Skxie@chelsio.com 13047b36b6e0Skxie@chelsio.com __kfree_skb(skb); 13057b36b6e0Skxie@chelsio.com } 13067b36b6e0Skxie@chelsio.com 13077b36b6e0Skxie@chelsio.com static int alloc_cpls(struct cxgbi_sock *csk) 13087b36b6e0Skxie@chelsio.com { 130924d3f95aSkxie@chelsio.com csk->cpl_close = alloc_wr(sizeof(struct cpl_close_con_req), 131024d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 13117b36b6e0Skxie@chelsio.com if (!csk->cpl_close) 13127b36b6e0Skxie@chelsio.com return -ENOMEM; 13137b36b6e0Skxie@chelsio.com 131424d3f95aSkxie@chelsio.com csk->cpl_abort_req = alloc_wr(sizeof(struct cpl_abort_req), 131524d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 13167b36b6e0Skxie@chelsio.com if (!csk->cpl_abort_req) 13177b36b6e0Skxie@chelsio.com goto free_cpls; 13187b36b6e0Skxie@chelsio.com 131924d3f95aSkxie@chelsio.com csk->cpl_abort_rpl = alloc_wr(sizeof(struct cpl_abort_rpl), 132024d3f95aSkxie@chelsio.com 0, GFP_KERNEL); 13217b36b6e0Skxie@chelsio.com if (!csk->cpl_abort_rpl) 13227b36b6e0Skxie@chelsio.com goto free_cpls; 13237b36b6e0Skxie@chelsio.com return 0; 13247b36b6e0Skxie@chelsio.com 13257b36b6e0Skxie@chelsio.com free_cpls: 13267b36b6e0Skxie@chelsio.com cxgbi_sock_free_cpl_skbs(csk); 13277b36b6e0Skxie@chelsio.com return -ENOMEM; 13287b36b6e0Skxie@chelsio.com } 13297b36b6e0Skxie@chelsio.com 13307b36b6e0Skxie@chelsio.com static inline void l2t_put(struct cxgbi_sock *csk) 13317b36b6e0Skxie@chelsio.com { 13327b36b6e0Skxie@chelsio.com if (csk->l2t) { 13337b36b6e0Skxie@chelsio.com cxgb4_l2t_release(csk->l2t); 13347b36b6e0Skxie@chelsio.com csk->l2t = NULL; 13357b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 13367b36b6e0Skxie@chelsio.com } 13377b36b6e0Skxie@chelsio.com } 13387b36b6e0Skxie@chelsio.com 13397b36b6e0Skxie@chelsio.com static void release_offload_resources(struct cxgbi_sock *csk) 13407b36b6e0Skxie@chelsio.com { 13417b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi; 1342211a84e3SAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1343211a84e3SAnish Bhatt struct net_device *ndev = csk->cdev->ports[csk->port_id]; 1344211a84e3SAnish Bhatt #endif 13457b36b6e0Skxie@chelsio.com 13467b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 13477b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 13487b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 13497b36b6e0Skxie@chelsio.com 13507b36b6e0Skxie@chelsio.com cxgbi_sock_free_cpl_skbs(csk); 13517b36b6e0Skxie@chelsio.com if (csk->wr_cred != csk->wr_max_cred) { 13527b36b6e0Skxie@chelsio.com cxgbi_sock_purge_wr_queue(csk); 13537b36b6e0Skxie@chelsio.com cxgbi_sock_reset_wr_list(csk); 13547b36b6e0Skxie@chelsio.com } 13557b36b6e0Skxie@chelsio.com 13567b36b6e0Skxie@chelsio.com l2t_put(csk); 1357211a84e3SAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1358211a84e3SAnish Bhatt if (csk->csk_family == AF_INET6) 1359211a84e3SAnish Bhatt cxgb4_clip_release(ndev, 1360211a84e3SAnish Bhatt (const u32 *)&csk->saddr6.sin6_addr, 1); 1361211a84e3SAnish Bhatt #endif 1362211a84e3SAnish Bhatt 13637b36b6e0Skxie@chelsio.com if (cxgbi_sock_flag(csk, CTPF_HAS_ATID)) 13647b36b6e0Skxie@chelsio.com free_atid(csk); 13657b36b6e0Skxie@chelsio.com else if (cxgbi_sock_flag(csk, CTPF_HAS_TID)) { 13667b36b6e0Skxie@chelsio.com lldi = cxgbi_cdev_priv(csk->cdev); 13677b36b6e0Skxie@chelsio.com cxgb4_remove_tid(lldi->tids, 0, csk->tid); 13687b36b6e0Skxie@chelsio.com cxgbi_sock_clear_flag(csk, CTPF_HAS_TID); 13697b36b6e0Skxie@chelsio.com cxgbi_sock_put(csk); 13707b36b6e0Skxie@chelsio.com } 13717b36b6e0Skxie@chelsio.com csk->dst = NULL; 13727b36b6e0Skxie@chelsio.com csk->cdev = NULL; 13737b36b6e0Skxie@chelsio.com } 13747b36b6e0Skxie@chelsio.com 13757b36b6e0Skxie@chelsio.com static int init_act_open(struct cxgbi_sock *csk) 13767b36b6e0Skxie@chelsio.com { 13777b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = csk->cdev; 13787b36b6e0Skxie@chelsio.com struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 13797b36b6e0Skxie@chelsio.com struct net_device *ndev = cdev->ports[csk->port_id]; 13807b36b6e0Skxie@chelsio.com struct sk_buff *skb = NULL; 1381759a0cc5SAnish Bhatt struct neighbour *n = NULL; 1382759a0cc5SAnish Bhatt void *daddr; 13837b36b6e0Skxie@chelsio.com unsigned int step; 1384759a0cc5SAnish Bhatt unsigned int size, size6; 1385759a0cc5SAnish Bhatt int t4 = is_t4(lldi->adapter_type); 138681daf10cSKaren Xie unsigned int linkspeed; 138781daf10cSKaren Xie unsigned int rcv_winf, snd_winf; 13887b36b6e0Skxie@chelsio.com 13897b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 13907b36b6e0Skxie@chelsio.com "csk 0x%p,%u,0x%lx,%u.\n", 13917b36b6e0Skxie@chelsio.com csk, csk->state, csk->flags, csk->tid); 13927b36b6e0Skxie@chelsio.com 1393759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 1394759a0cc5SAnish Bhatt daddr = &csk->daddr.sin_addr.s_addr; 1395e81fbf6cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1396e81fbf6cSAnish Bhatt else if (csk->csk_family == AF_INET6) 1397759a0cc5SAnish Bhatt daddr = &csk->daddr6.sin6_addr; 1398e81fbf6cSAnish Bhatt #endif 1399e81fbf6cSAnish Bhatt else { 1400e81fbf6cSAnish Bhatt pr_err("address family 0x%x not supported\n", csk->csk_family); 1401e81fbf6cSAnish Bhatt goto rel_resource; 1402e81fbf6cSAnish Bhatt } 1403759a0cc5SAnish Bhatt 1404759a0cc5SAnish Bhatt n = dst_neigh_lookup(csk->dst, daddr); 1405759a0cc5SAnish Bhatt 1406759a0cc5SAnish Bhatt if (!n) { 1407759a0cc5SAnish Bhatt pr_err("%s, can't get neighbour of csk->dst.\n", ndev->name); 1408759a0cc5SAnish Bhatt goto rel_resource; 1409759a0cc5SAnish Bhatt } 1410759a0cc5SAnish Bhatt 14117b36b6e0Skxie@chelsio.com csk->atid = cxgb4_alloc_atid(lldi->tids, csk); 14127b36b6e0Skxie@chelsio.com if (csk->atid < 0) { 14137b36b6e0Skxie@chelsio.com pr_err("%s, NO atid available.\n", ndev->name); 14147b36b6e0Skxie@chelsio.com return -EINVAL; 14157b36b6e0Skxie@chelsio.com } 14167b36b6e0Skxie@chelsio.com cxgbi_sock_set_flag(csk, CTPF_HAS_ATID); 14177b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 14187b36b6e0Skxie@chelsio.com 141951e059bdSDavid Miller csk->l2t = cxgb4_l2t_get(lldi->l2t, n, ndev, 0); 14207b36b6e0Skxie@chelsio.com if (!csk->l2t) { 14217b36b6e0Skxie@chelsio.com pr_err("%s, cannot alloc l2t.\n", ndev->name); 1422211a84e3SAnish Bhatt goto rel_resource_without_clip; 14237b36b6e0Skxie@chelsio.com } 14247b36b6e0Skxie@chelsio.com cxgbi_sock_get(csk); 14257b36b6e0Skxie@chelsio.com 1426211a84e3SAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1427211a84e3SAnish Bhatt if (csk->csk_family == AF_INET6) 1428211a84e3SAnish Bhatt cxgb4_clip_get(ndev, (const u32 *)&csk->saddr6.sin6_addr, 1); 1429211a84e3SAnish Bhatt #endif 1430211a84e3SAnish Bhatt 1431759a0cc5SAnish Bhatt if (t4) { 1432759a0cc5SAnish Bhatt size = sizeof(struct cpl_act_open_req); 1433759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_act_open_req6); 1434759a0cc5SAnish Bhatt } else { 1435759a0cc5SAnish Bhatt size = sizeof(struct cpl_t5_act_open_req); 1436759a0cc5SAnish Bhatt size6 = sizeof(struct cpl_t5_act_open_req6); 1437759a0cc5SAnish Bhatt } 1438759a0cc5SAnish Bhatt 1439759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 1440759a0cc5SAnish Bhatt skb = alloc_wr(size, 0, GFP_NOIO); 1441f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1442759a0cc5SAnish Bhatt else 1443759a0cc5SAnish Bhatt skb = alloc_wr(size6, 0, GFP_NOIO); 1444f42bb57cSAnish Bhatt #endif 1445759a0cc5SAnish Bhatt 14467b36b6e0Skxie@chelsio.com if (!skb) 14477b36b6e0Skxie@chelsio.com goto rel_resource; 14487b36b6e0Skxie@chelsio.com skb->sk = (struct sock *)csk; 14497b36b6e0Skxie@chelsio.com t4_set_arp_err_handler(skb, csk, cxgbi_sock_act_open_req_arp_failure); 14507b36b6e0Skxie@chelsio.com 14517b36b6e0Skxie@chelsio.com if (!csk->mtu) 14527b36b6e0Skxie@chelsio.com csk->mtu = dst_mtu(csk->dst); 14537b36b6e0Skxie@chelsio.com cxgb4_best_mtu(lldi->mtus, csk->mtu, &csk->mss_idx); 14547b36b6e0Skxie@chelsio.com csk->tx_chan = cxgb4_port_chan(ndev); 14557b36b6e0Skxie@chelsio.com /* SMT two entries per row */ 14567b36b6e0Skxie@chelsio.com csk->smac_idx = ((cxgb4_port_viid(ndev) & 0x7F)) << 1; 14577b36b6e0Skxie@chelsio.com step = lldi->ntxq / lldi->nchan; 14587b36b6e0Skxie@chelsio.com csk->txq_idx = cxgb4_port_idx(ndev) * step; 14597b36b6e0Skxie@chelsio.com step = lldi->nrxq / lldi->nchan; 14607b36b6e0Skxie@chelsio.com csk->rss_qid = lldi->rxq_ids[cxgb4_port_idx(ndev) * step]; 146181daf10cSKaren Xie linkspeed = ((struct port_info *)netdev_priv(ndev))->link_cfg.speed; 146281daf10cSKaren Xie csk->snd_win = cxgb4i_snd_win; 146381daf10cSKaren Xie csk->rcv_win = cxgb4i_rcv_win; 146481daf10cSKaren Xie if (cxgb4i_rcv_win <= 0) { 146581daf10cSKaren Xie csk->rcv_win = CXGB4I_DEFAULT_10G_RCV_WIN; 146681daf10cSKaren Xie rcv_winf = linkspeed / SPEED_10000; 146781daf10cSKaren Xie if (rcv_winf) 146881daf10cSKaren Xie csk->rcv_win *= rcv_winf; 146981daf10cSKaren Xie } 147081daf10cSKaren Xie if (cxgb4i_snd_win <= 0) { 147181daf10cSKaren Xie csk->snd_win = CXGB4I_DEFAULT_10G_SND_WIN; 147281daf10cSKaren Xie snd_winf = linkspeed / SPEED_10000; 147381daf10cSKaren Xie if (snd_winf) 147481daf10cSKaren Xie csk->snd_win *= snd_winf; 147581daf10cSKaren Xie } 1476759a0cc5SAnish Bhatt csk->wr_cred = lldi->wr_cred - 1477759a0cc5SAnish Bhatt DIV_ROUND_UP(sizeof(struct cpl_abort_req), 16); 1478759a0cc5SAnish Bhatt csk->wr_max_cred = csk->wr_cred; 14797b36b6e0Skxie@chelsio.com csk->wr_una_cred = 0; 14807b36b6e0Skxie@chelsio.com cxgbi_sock_reset_wr_list(csk); 14817b36b6e0Skxie@chelsio.com csk->err = 0; 14827b36b6e0Skxie@chelsio.com 1483759a0cc5SAnish Bhatt pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u,%u,%u, mtu %u,%u, smac %u.\n", 1484759a0cc5SAnish Bhatt (&csk->saddr), (&csk->daddr), csk, csk->state, 1485759a0cc5SAnish Bhatt csk->flags, csk->tx_chan, csk->txq_idx, csk->rss_qid, 1486759a0cc5SAnish Bhatt csk->mtu, csk->mss_idx, csk->smac_idx); 1487759a0cc5SAnish Bhatt 1488759a0cc5SAnish Bhatt /* must wait for either a act_open_rpl or act_open_establish */ 1489759a0cc5SAnish Bhatt try_module_get(THIS_MODULE); 14907b36b6e0Skxie@chelsio.com cxgbi_sock_set_state(csk, CTP_ACTIVE_OPEN); 1491759a0cc5SAnish Bhatt if (csk->csk_family == AF_INET) 14927b36b6e0Skxie@chelsio.com send_act_open_req(csk, skb, csk->l2t); 1493f42bb57cSAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1494759a0cc5SAnish Bhatt else 1495759a0cc5SAnish Bhatt send_act_open_req6(csk, skb, csk->l2t); 1496f42bb57cSAnish Bhatt #endif 1497c4737377SDavid S. Miller neigh_release(n); 1498759a0cc5SAnish Bhatt 14997b36b6e0Skxie@chelsio.com return 0; 15007b36b6e0Skxie@chelsio.com 15017b36b6e0Skxie@chelsio.com rel_resource: 1502211a84e3SAnish Bhatt #if IS_ENABLED(CONFIG_IPV6) 1503211a84e3SAnish Bhatt if (csk->csk_family == AF_INET6) 1504211a84e3SAnish Bhatt cxgb4_clip_release(ndev, 1505211a84e3SAnish Bhatt (const u32 *)&csk->saddr6.sin6_addr, 1); 1506211a84e3SAnish Bhatt #endif 1507211a84e3SAnish Bhatt rel_resource_without_clip: 1508c4737377SDavid S. Miller if (n) 1509c4737377SDavid S. Miller neigh_release(n); 15107b36b6e0Skxie@chelsio.com if (skb) 15117b36b6e0Skxie@chelsio.com __kfree_skb(skb); 15127b36b6e0Skxie@chelsio.com return -EINVAL; 15137b36b6e0Skxie@chelsio.com } 15147b36b6e0Skxie@chelsio.com 15154665bdd5SVarun Prakash static cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = { 15167b36b6e0Skxie@chelsio.com [CPL_ACT_ESTABLISH] = do_act_establish, 15177b36b6e0Skxie@chelsio.com [CPL_ACT_OPEN_RPL] = do_act_open_rpl, 15187b36b6e0Skxie@chelsio.com [CPL_PEER_CLOSE] = do_peer_close, 15197b36b6e0Skxie@chelsio.com [CPL_ABORT_REQ_RSS] = do_abort_req_rss, 15207b36b6e0Skxie@chelsio.com [CPL_ABORT_RPL_RSS] = do_abort_rpl_rss, 15217b36b6e0Skxie@chelsio.com [CPL_CLOSE_CON_RPL] = do_close_con_rpl, 15227b36b6e0Skxie@chelsio.com [CPL_FW4_ACK] = do_fw4_ack, 15237b36b6e0Skxie@chelsio.com [CPL_ISCSI_HDR] = do_rx_iscsi_hdr, 15243bd3e8bfSKaren Xie [CPL_ISCSI_DATA] = do_rx_iscsi_hdr, 15257b36b6e0Skxie@chelsio.com [CPL_SET_TCB_RPL] = do_set_tcb_rpl, 15267b36b6e0Skxie@chelsio.com [CPL_RX_DATA_DDP] = do_rx_data_ddp, 15273bd3e8bfSKaren Xie [CPL_RX_ISCSI_DDP] = do_rx_data_ddp, 1528f7bcd2e1SKaren Xie [CPL_RX_DATA] = do_rx_data, 15297b36b6e0Skxie@chelsio.com }; 15307b36b6e0Skxie@chelsio.com 15314665bdd5SVarun Prakash static int cxgb4i_ofld_init(struct cxgbi_device *cdev) 15327b36b6e0Skxie@chelsio.com { 15337b36b6e0Skxie@chelsio.com int rc; 15347b36b6e0Skxie@chelsio.com 15357b36b6e0Skxie@chelsio.com if (cxgb4i_max_connect > CXGB4I_MAX_CONN) 15367b36b6e0Skxie@chelsio.com cxgb4i_max_connect = CXGB4I_MAX_CONN; 15377b36b6e0Skxie@chelsio.com 15387b36b6e0Skxie@chelsio.com rc = cxgbi_device_portmap_create(cdev, cxgb4i_sport_base, 15397b36b6e0Skxie@chelsio.com cxgb4i_max_connect); 15407b36b6e0Skxie@chelsio.com if (rc < 0) 15417b36b6e0Skxie@chelsio.com return rc; 15427b36b6e0Skxie@chelsio.com 15437b36b6e0Skxie@chelsio.com cdev->csk_release_offload_resources = release_offload_resources; 15447b36b6e0Skxie@chelsio.com cdev->csk_push_tx_frames = push_tx_frames; 15457b36b6e0Skxie@chelsio.com cdev->csk_send_abort_req = send_abort_req; 15467b36b6e0Skxie@chelsio.com cdev->csk_send_close_req = send_close_req; 15477b36b6e0Skxie@chelsio.com cdev->csk_send_rx_credits = send_rx_credits; 15487b36b6e0Skxie@chelsio.com cdev->csk_alloc_cpls = alloc_cpls; 15497b36b6e0Skxie@chelsio.com cdev->csk_init_act_open = init_act_open; 15507b36b6e0Skxie@chelsio.com 15517b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, offload up, added.\n", cdev); 15527b36b6e0Skxie@chelsio.com return 0; 15537b36b6e0Skxie@chelsio.com } 15547b36b6e0Skxie@chelsio.com 155571f7a00bSVarun Prakash static inline void 155671f7a00bSVarun Prakash ulp_mem_io_set_hdr(struct cxgbi_device *cdev, 155771f7a00bSVarun Prakash struct ulp_mem_io *req, 155871f7a00bSVarun Prakash unsigned int wr_len, unsigned int dlen, 155971f7a00bSVarun Prakash unsigned int pm_addr, 156071f7a00bSVarun Prakash int tid) 156171f7a00bSVarun Prakash { 156271f7a00bSVarun Prakash struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 156371f7a00bSVarun Prakash struct ulptx_idata *idata = (struct ulptx_idata *)(req + 1); 156471f7a00bSVarun Prakash 156571f7a00bSVarun Prakash INIT_ULPTX_WR(req, wr_len, 0, tid); 156671f7a00bSVarun Prakash req->wr.wr_hi = htonl(FW_WR_OP_V(FW_ULPTX_WR) | 156771f7a00bSVarun Prakash FW_WR_ATOMIC_V(0)); 156871f7a00bSVarun Prakash req->cmd = htonl(ULPTX_CMD_V(ULP_TX_MEM_WRITE) | 156971f7a00bSVarun Prakash ULP_MEMIO_ORDER_V(is_t4(lldi->adapter_type)) | 157071f7a00bSVarun Prakash T5_ULP_MEMIO_IMM_V(!is_t4(lldi->adapter_type))); 157171f7a00bSVarun Prakash req->dlen = htonl(ULP_MEMIO_DATA_LEN_V(dlen >> 5)); 157271f7a00bSVarun Prakash req->lock_addr = htonl(ULP_MEMIO_ADDR_V(pm_addr >> 5)); 157371f7a00bSVarun Prakash req->len16 = htonl(DIV_ROUND_UP(wr_len - sizeof(req->wr), 16)); 157471f7a00bSVarun Prakash 157571f7a00bSVarun Prakash idata->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_IMM)); 157671f7a00bSVarun Prakash idata->len = htonl(dlen); 157771f7a00bSVarun Prakash } 157871f7a00bSVarun Prakash 157971f7a00bSVarun Prakash static struct sk_buff * 158071f7a00bSVarun Prakash ddp_ppod_init_idata(struct cxgbi_device *cdev, 158171f7a00bSVarun Prakash struct cxgbi_ppm *ppm, 158271f7a00bSVarun Prakash unsigned int idx, unsigned int npods, 158371f7a00bSVarun Prakash unsigned int tid) 158471f7a00bSVarun Prakash { 158571f7a00bSVarun Prakash unsigned int pm_addr = (idx << PPOD_SIZE_SHIFT) + ppm->llimit; 158671f7a00bSVarun Prakash unsigned int dlen = npods << PPOD_SIZE_SHIFT; 158771f7a00bSVarun Prakash unsigned int wr_len = roundup(sizeof(struct ulp_mem_io) + 158871f7a00bSVarun Prakash sizeof(struct ulptx_idata) + dlen, 16); 158971f7a00bSVarun Prakash struct sk_buff *skb = alloc_wr(wr_len, 0, GFP_ATOMIC); 159071f7a00bSVarun Prakash 159171f7a00bSVarun Prakash if (!skb) { 159271f7a00bSVarun Prakash pr_err("%s: %s idx %u, npods %u, OOM.\n", 159371f7a00bSVarun Prakash __func__, ppm->ndev->name, idx, npods); 159471f7a00bSVarun Prakash return NULL; 159571f7a00bSVarun Prakash } 159671f7a00bSVarun Prakash 159771f7a00bSVarun Prakash ulp_mem_io_set_hdr(cdev, (struct ulp_mem_io *)skb->head, wr_len, dlen, 159871f7a00bSVarun Prakash pm_addr, tid); 159971f7a00bSVarun Prakash 160071f7a00bSVarun Prakash return skb; 160171f7a00bSVarun Prakash } 160271f7a00bSVarun Prakash 160371f7a00bSVarun Prakash static int ddp_ppod_write_idata(struct cxgbi_ppm *ppm, struct cxgbi_sock *csk, 160471f7a00bSVarun Prakash struct cxgbi_task_tag_info *ttinfo, 160571f7a00bSVarun Prakash unsigned int idx, unsigned int npods, 160671f7a00bSVarun Prakash struct scatterlist **sg_pp, 160771f7a00bSVarun Prakash unsigned int *sg_off) 160871f7a00bSVarun Prakash { 160971f7a00bSVarun Prakash struct cxgbi_device *cdev = csk->cdev; 161071f7a00bSVarun Prakash struct sk_buff *skb = ddp_ppod_init_idata(cdev, ppm, idx, npods, 161171f7a00bSVarun Prakash csk->tid); 161271f7a00bSVarun Prakash struct ulp_mem_io *req; 161371f7a00bSVarun Prakash struct ulptx_idata *idata; 161471f7a00bSVarun Prakash struct cxgbi_pagepod *ppod; 161571f7a00bSVarun Prakash int i; 161671f7a00bSVarun Prakash 161771f7a00bSVarun Prakash if (!skb) 161871f7a00bSVarun Prakash return -ENOMEM; 161971f7a00bSVarun Prakash 162071f7a00bSVarun Prakash req = (struct ulp_mem_io *)skb->head; 162171f7a00bSVarun Prakash idata = (struct ulptx_idata *)(req + 1); 162271f7a00bSVarun Prakash ppod = (struct cxgbi_pagepod *)(idata + 1); 162371f7a00bSVarun Prakash 162471f7a00bSVarun Prakash for (i = 0; i < npods; i++, ppod++) 162571f7a00bSVarun Prakash cxgbi_ddp_set_one_ppod(ppod, ttinfo, sg_pp, sg_off); 162671f7a00bSVarun Prakash 162771f7a00bSVarun Prakash cxgbi_skcb_set_flag(skb, SKCBF_TX_MEM_WRITE); 162871f7a00bSVarun Prakash cxgbi_skcb_set_flag(skb, SKCBF_TX_FLAG_COMPL); 162971f7a00bSVarun Prakash set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id); 163071f7a00bSVarun Prakash 163171f7a00bSVarun Prakash spin_lock_bh(&csk->lock); 163271f7a00bSVarun Prakash cxgbi_sock_skb_entail(csk, skb); 163371f7a00bSVarun Prakash spin_unlock_bh(&csk->lock); 163471f7a00bSVarun Prakash 163571f7a00bSVarun Prakash return 0; 163671f7a00bSVarun Prakash } 163771f7a00bSVarun Prakash 163871f7a00bSVarun Prakash static int ddp_set_map(struct cxgbi_ppm *ppm, struct cxgbi_sock *csk, 163971f7a00bSVarun Prakash struct cxgbi_task_tag_info *ttinfo) 164071f7a00bSVarun Prakash { 164171f7a00bSVarun Prakash unsigned int pidx = ttinfo->idx; 164271f7a00bSVarun Prakash unsigned int npods = ttinfo->npods; 164371f7a00bSVarun Prakash unsigned int i, cnt; 164471f7a00bSVarun Prakash int err = 0; 164571f7a00bSVarun Prakash struct scatterlist *sg = ttinfo->sgl; 164671f7a00bSVarun Prakash unsigned int offset = 0; 164771f7a00bSVarun Prakash 164871f7a00bSVarun Prakash ttinfo->cid = csk->port_id; 164971f7a00bSVarun Prakash 165071f7a00bSVarun Prakash for (i = 0; i < npods; i += cnt, pidx += cnt) { 165171f7a00bSVarun Prakash cnt = npods - i; 165271f7a00bSVarun Prakash 165371f7a00bSVarun Prakash if (cnt > ULPMEM_IDATA_MAX_NPPODS) 165471f7a00bSVarun Prakash cnt = ULPMEM_IDATA_MAX_NPPODS; 165571f7a00bSVarun Prakash err = ddp_ppod_write_idata(ppm, csk, ttinfo, pidx, cnt, 165671f7a00bSVarun Prakash &sg, &offset); 165771f7a00bSVarun Prakash if (err < 0) 165871f7a00bSVarun Prakash break; 165971f7a00bSVarun Prakash } 166071f7a00bSVarun Prakash 166171f7a00bSVarun Prakash return err; 166271f7a00bSVarun Prakash } 166371f7a00bSVarun Prakash 16647b36b6e0Skxie@chelsio.com static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk, unsigned int tid, 16657b36b6e0Skxie@chelsio.com int pg_idx, bool reply) 16667b36b6e0Skxie@chelsio.com { 16677b36b6e0Skxie@chelsio.com struct sk_buff *skb; 16687b36b6e0Skxie@chelsio.com struct cpl_set_tcb_field *req; 16697b36b6e0Skxie@chelsio.com 1670e27d6169Skxie@chelsio.com if (!pg_idx || pg_idx >= DDP_PGIDX_MAX) 16717b36b6e0Skxie@chelsio.com return 0; 16727b36b6e0Skxie@chelsio.com 167324d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL); 16747b36b6e0Skxie@chelsio.com if (!skb) 16757b36b6e0Skxie@chelsio.com return -ENOMEM; 16767b36b6e0Skxie@chelsio.com 1677e27d6169Skxie@chelsio.com /* set up ulp page size */ 16787b36b6e0Skxie@chelsio.com req = (struct cpl_set_tcb_field *)skb->head; 16797b36b6e0Skxie@chelsio.com INIT_TP_WR(req, csk->tid); 16807b36b6e0Skxie@chelsio.com OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, csk->tid)); 1681bdc590b9SHariprasad Shenai req->reply_ctrl = htons(NO_REPLY_V(reply) | QUEUENO_V(csk->rss_qid)); 1682e27d6169Skxie@chelsio.com req->word_cookie = htons(0); 1683e27d6169Skxie@chelsio.com req->mask = cpu_to_be64(0x3 << 8); 1684e27d6169Skxie@chelsio.com req->val = cpu_to_be64(pg_idx << 8); 16857b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id); 16867b36b6e0Skxie@chelsio.com 16877b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 16887b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, pg_idx %u.\n", csk, csk->tid, pg_idx); 16897b36b6e0Skxie@chelsio.com 16907b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 16917b36b6e0Skxie@chelsio.com return 0; 16927b36b6e0Skxie@chelsio.com } 16937b36b6e0Skxie@chelsio.com 16947b36b6e0Skxie@chelsio.com static int ddp_setup_conn_digest(struct cxgbi_sock *csk, unsigned int tid, 16957b36b6e0Skxie@chelsio.com int hcrc, int dcrc, int reply) 16967b36b6e0Skxie@chelsio.com { 16977b36b6e0Skxie@chelsio.com struct sk_buff *skb; 16987b36b6e0Skxie@chelsio.com struct cpl_set_tcb_field *req; 16997b36b6e0Skxie@chelsio.com 1700e27d6169Skxie@chelsio.com if (!hcrc && !dcrc) 1701e27d6169Skxie@chelsio.com return 0; 17027b36b6e0Skxie@chelsio.com 170324d3f95aSkxie@chelsio.com skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL); 17047b36b6e0Skxie@chelsio.com if (!skb) 17057b36b6e0Skxie@chelsio.com return -ENOMEM; 17067b36b6e0Skxie@chelsio.com 17077b36b6e0Skxie@chelsio.com csk->hcrc_len = (hcrc ? 4 : 0); 17087b36b6e0Skxie@chelsio.com csk->dcrc_len = (dcrc ? 4 : 0); 1709e27d6169Skxie@chelsio.com /* set up ulp submode */ 17107b36b6e0Skxie@chelsio.com req = (struct cpl_set_tcb_field *)skb->head; 17117b36b6e0Skxie@chelsio.com INIT_TP_WR(req, tid); 17127b36b6e0Skxie@chelsio.com OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid)); 1713bdc590b9SHariprasad Shenai req->reply_ctrl = htons(NO_REPLY_V(reply) | QUEUENO_V(csk->rss_qid)); 1714e27d6169Skxie@chelsio.com req->word_cookie = htons(0); 1715e27d6169Skxie@chelsio.com req->mask = cpu_to_be64(0x3 << 4); 1716e27d6169Skxie@chelsio.com req->val = cpu_to_be64(((hcrc ? ULP_CRC_HEADER : 0) | 1717e27d6169Skxie@chelsio.com (dcrc ? ULP_CRC_DATA : 0)) << 4); 17187b36b6e0Skxie@chelsio.com set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id); 17197b36b6e0Skxie@chelsio.com 17207b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK, 17217b36b6e0Skxie@chelsio.com "csk 0x%p, tid 0x%x, crc %d,%d.\n", csk, csk->tid, hcrc, dcrc); 17227b36b6e0Skxie@chelsio.com 17237b36b6e0Skxie@chelsio.com cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb); 17247b36b6e0Skxie@chelsio.com return 0; 17257b36b6e0Skxie@chelsio.com } 17267b36b6e0Skxie@chelsio.com 172771f7a00bSVarun Prakash static struct cxgbi_ppm *cdev2ppm(struct cxgbi_device *cdev) 172871f7a00bSVarun Prakash { 172971f7a00bSVarun Prakash return (struct cxgbi_ppm *)(*((struct cxgb4_lld_info *) 173071f7a00bSVarun Prakash (cxgbi_cdev_priv(cdev)))->iscsi_ppm); 173171f7a00bSVarun Prakash } 173271f7a00bSVarun Prakash 17337b36b6e0Skxie@chelsio.com static int cxgb4i_ddp_init(struct cxgbi_device *cdev) 17347b36b6e0Skxie@chelsio.com { 173571f7a00bSVarun Prakash struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev); 173671f7a00bSVarun Prakash struct net_device *ndev = cdev->ports[0]; 173771f7a00bSVarun Prakash struct cxgbi_tag_format tformat; 173871f7a00bSVarun Prakash unsigned int ppmax; 173971f7a00bSVarun Prakash int i; 174071f7a00bSVarun Prakash 174171f7a00bSVarun Prakash if (!lldi->vr->iscsi.size) { 174271f7a00bSVarun Prakash pr_warn("%s, iscsi NOT enabled, check config!\n", ndev->name); 174371f7a00bSVarun Prakash return -EACCES; 174471f7a00bSVarun Prakash } 174571f7a00bSVarun Prakash 174671f7a00bSVarun Prakash cdev->flags |= CXGBI_FLAG_USE_PPOD_OFLDQ; 174771f7a00bSVarun Prakash ppmax = lldi->vr->iscsi.size >> PPOD_SIZE_SHIFT; 174871f7a00bSVarun Prakash 174971f7a00bSVarun Prakash memset(&tformat, 0, sizeof(struct cxgbi_tag_format)); 175071f7a00bSVarun Prakash for (i = 0; i < 4; i++) 175171f7a00bSVarun Prakash tformat.pgsz_order[i] = (lldi->iscsi_pgsz_order >> (i << 3)) 175271f7a00bSVarun Prakash & 0xF; 175371f7a00bSVarun Prakash cxgbi_tagmask_check(lldi->iscsi_tagmask, &tformat); 175471f7a00bSVarun Prakash 175571f7a00bSVarun Prakash cxgbi_ddp_ppm_setup(lldi->iscsi_ppm, cdev, &tformat, ppmax, 175671f7a00bSVarun Prakash lldi->iscsi_llimit, lldi->vr->iscsi.start, 2); 175771f7a00bSVarun Prakash 17587b36b6e0Skxie@chelsio.com cdev->csk_ddp_setup_digest = ddp_setup_conn_digest; 17597b36b6e0Skxie@chelsio.com cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx; 176071f7a00bSVarun Prakash cdev->csk_ddp_set_map = ddp_set_map; 176171f7a00bSVarun Prakash cdev->tx_max_size = min_t(unsigned int, ULP2_MAX_PDU_PAYLOAD, 176271f7a00bSVarun Prakash lldi->iscsi_iolen - ISCSI_PDU_NONPAYLOAD_LEN); 176371f7a00bSVarun Prakash cdev->rx_max_size = min_t(unsigned int, ULP2_MAX_PDU_PAYLOAD, 176471f7a00bSVarun Prakash lldi->iscsi_iolen - ISCSI_PDU_NONPAYLOAD_LEN); 176571f7a00bSVarun Prakash cdev->cdev2ppm = cdev2ppm; 176671f7a00bSVarun Prakash 17677b36b6e0Skxie@chelsio.com return 0; 17687b36b6e0Skxie@chelsio.com } 17697b36b6e0Skxie@chelsio.com 17707b36b6e0Skxie@chelsio.com static void *t4_uld_add(const struct cxgb4_lld_info *lldi) 17717b36b6e0Skxie@chelsio.com { 17727b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev; 17737b36b6e0Skxie@chelsio.com struct port_info *pi; 17747b36b6e0Skxie@chelsio.com int i, rc; 17757b36b6e0Skxie@chelsio.com 17767b36b6e0Skxie@chelsio.com cdev = cxgbi_device_register(sizeof(*lldi), lldi->nports); 17777b36b6e0Skxie@chelsio.com if (!cdev) { 17787b36b6e0Skxie@chelsio.com pr_info("t4 device 0x%p, register failed.\n", lldi); 17797b36b6e0Skxie@chelsio.com return NULL; 17807b36b6e0Skxie@chelsio.com } 17817b36b6e0Skxie@chelsio.com pr_info("0x%p,0x%x, ports %u,%s, chan %u, q %u,%u, wr %u.\n", 17827b36b6e0Skxie@chelsio.com cdev, lldi->adapter_type, lldi->nports, 17837b36b6e0Skxie@chelsio.com lldi->ports[0]->name, lldi->nchan, lldi->ntxq, 17847b36b6e0Skxie@chelsio.com lldi->nrxq, lldi->wr_cred); 17857b36b6e0Skxie@chelsio.com for (i = 0; i < lldi->nrxq; i++) 17867b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_DEV, 17877b36b6e0Skxie@chelsio.com "t4 0x%p, rxq id #%d: %u.\n", 17887b36b6e0Skxie@chelsio.com cdev, i, lldi->rxq_ids[i]); 17897b36b6e0Skxie@chelsio.com 17907b36b6e0Skxie@chelsio.com memcpy(cxgbi_cdev_priv(cdev), lldi, sizeof(*lldi)); 17917b36b6e0Skxie@chelsio.com cdev->flags = CXGBI_FLAG_DEV_T4; 17927b36b6e0Skxie@chelsio.com cdev->pdev = lldi->pdev; 17937b36b6e0Skxie@chelsio.com cdev->ports = lldi->ports; 17947b36b6e0Skxie@chelsio.com cdev->nports = lldi->nports; 17957b36b6e0Skxie@chelsio.com cdev->mtus = lldi->mtus; 17967b36b6e0Skxie@chelsio.com cdev->nmtus = NMTUS; 17977b36b6e0Skxie@chelsio.com cdev->rx_credit_thres = cxgb4i_rx_credit_thres; 17987b36b6e0Skxie@chelsio.com cdev->skb_tx_rsvd = CXGB4I_TX_HEADER_LEN; 17997b36b6e0Skxie@chelsio.com cdev->skb_rx_extra = sizeof(struct cpl_iscsi_hdr); 18007b36b6e0Skxie@chelsio.com cdev->itp = &cxgb4i_iscsi_transport; 18017b36b6e0Skxie@chelsio.com 1802d7990b0cSAnish Bhatt cdev->pfvf = FW_VIID_PFN_G(cxgb4_port_viid(lldi->ports[0])) 1803d7990b0cSAnish Bhatt << FW_VIID_PFN_S; 1804e27d6169Skxie@chelsio.com pr_info("cdev 0x%p,%s, pfvf %u.\n", 1805e27d6169Skxie@chelsio.com cdev, lldi->ports[0]->name, cdev->pfvf); 1806e27d6169Skxie@chelsio.com 18077b36b6e0Skxie@chelsio.com rc = cxgb4i_ddp_init(cdev); 18087b36b6e0Skxie@chelsio.com if (rc) { 18097b36b6e0Skxie@chelsio.com pr_info("t4 0x%p ddp init failed.\n", cdev); 18107b36b6e0Skxie@chelsio.com goto err_out; 18117b36b6e0Skxie@chelsio.com } 18127b36b6e0Skxie@chelsio.com rc = cxgb4i_ofld_init(cdev); 18137b36b6e0Skxie@chelsio.com if (rc) { 18147b36b6e0Skxie@chelsio.com pr_info("t4 0x%p ofld init failed.\n", cdev); 18157b36b6e0Skxie@chelsio.com goto err_out; 18167b36b6e0Skxie@chelsio.com } 18177b36b6e0Skxie@chelsio.com 18187b36b6e0Skxie@chelsio.com rc = cxgbi_hbas_add(cdev, CXGB4I_MAX_LUN, CXGBI_MAX_CONN, 18197b36b6e0Skxie@chelsio.com &cxgb4i_host_template, cxgb4i_stt); 18207b36b6e0Skxie@chelsio.com if (rc) 18217b36b6e0Skxie@chelsio.com goto err_out; 18227b36b6e0Skxie@chelsio.com 18237b36b6e0Skxie@chelsio.com for (i = 0; i < cdev->nports; i++) { 18247b36b6e0Skxie@chelsio.com pi = netdev_priv(lldi->ports[i]); 18257b36b6e0Skxie@chelsio.com cdev->hbas[i]->port_id = pi->port_id; 18267b36b6e0Skxie@chelsio.com } 18277b36b6e0Skxie@chelsio.com return cdev; 18287b36b6e0Skxie@chelsio.com 18297b36b6e0Skxie@chelsio.com err_out: 18307b36b6e0Skxie@chelsio.com cxgbi_device_unregister(cdev); 18317b36b6e0Skxie@chelsio.com return ERR_PTR(-ENOMEM); 18327b36b6e0Skxie@chelsio.com } 18337b36b6e0Skxie@chelsio.com 18347b36b6e0Skxie@chelsio.com #define RX_PULL_LEN 128 18357b36b6e0Skxie@chelsio.com static int t4_uld_rx_handler(void *handle, const __be64 *rsp, 18367b36b6e0Skxie@chelsio.com const struct pkt_gl *pgl) 18377b36b6e0Skxie@chelsio.com { 18387b36b6e0Skxie@chelsio.com const struct cpl_act_establish *rpl; 18397b36b6e0Skxie@chelsio.com struct sk_buff *skb; 18407b36b6e0Skxie@chelsio.com unsigned int opc; 18417b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = handle; 18427b36b6e0Skxie@chelsio.com 18437b36b6e0Skxie@chelsio.com if (pgl == NULL) { 18447b36b6e0Skxie@chelsio.com unsigned int len = 64 - sizeof(struct rsp_ctrl) - 8; 18457b36b6e0Skxie@chelsio.com 184624d3f95aSkxie@chelsio.com skb = alloc_wr(len, 0, GFP_ATOMIC); 18477b36b6e0Skxie@chelsio.com if (!skb) 18487b36b6e0Skxie@chelsio.com goto nomem; 18497b36b6e0Skxie@chelsio.com skb_copy_to_linear_data(skb, &rsp[1], len); 18507b36b6e0Skxie@chelsio.com } else { 18517b36b6e0Skxie@chelsio.com if (unlikely(*(u8 *)rsp != *(u8 *)pgl->va)) { 18527b36b6e0Skxie@chelsio.com pr_info("? FL 0x%p,RSS%#llx,FL %#llx,len %u.\n", 18537b36b6e0Skxie@chelsio.com pgl->va, be64_to_cpu(*rsp), 18547b36b6e0Skxie@chelsio.com be64_to_cpu(*(u64 *)pgl->va), 18557b36b6e0Skxie@chelsio.com pgl->tot_len); 18567b36b6e0Skxie@chelsio.com return 0; 18577b36b6e0Skxie@chelsio.com } 18587b36b6e0Skxie@chelsio.com skb = cxgb4_pktgl_to_skb(pgl, RX_PULL_LEN, RX_PULL_LEN); 18597b36b6e0Skxie@chelsio.com if (unlikely(!skb)) 18607b36b6e0Skxie@chelsio.com goto nomem; 18617b36b6e0Skxie@chelsio.com } 18627b36b6e0Skxie@chelsio.com 18637b36b6e0Skxie@chelsio.com rpl = (struct cpl_act_establish *)skb->data; 18647b36b6e0Skxie@chelsio.com opc = rpl->ot.opcode; 18657b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE, 18667b36b6e0Skxie@chelsio.com "cdev %p, opcode 0x%x(0x%x,0x%x), skb %p.\n", 18677b36b6e0Skxie@chelsio.com cdev, opc, rpl->ot.opcode_tid, ntohl(rpl->ot.opcode_tid), skb); 18687b36b6e0Skxie@chelsio.com if (cxgb4i_cplhandlers[opc]) 18697b36b6e0Skxie@chelsio.com cxgb4i_cplhandlers[opc](cdev, skb); 18707b36b6e0Skxie@chelsio.com else { 18717b36b6e0Skxie@chelsio.com pr_err("No handler for opcode 0x%x.\n", opc); 18727b36b6e0Skxie@chelsio.com __kfree_skb(skb); 18737b36b6e0Skxie@chelsio.com } 18747b36b6e0Skxie@chelsio.com return 0; 18757b36b6e0Skxie@chelsio.com nomem: 18767b36b6e0Skxie@chelsio.com log_debug(1 << CXGBI_DBG_TOE, "OOM bailing out.\n"); 18777b36b6e0Skxie@chelsio.com return 1; 18787b36b6e0Skxie@chelsio.com } 18797b36b6e0Skxie@chelsio.com 18807b36b6e0Skxie@chelsio.com static int t4_uld_state_change(void *handle, enum cxgb4_state state) 18817b36b6e0Skxie@chelsio.com { 18827b36b6e0Skxie@chelsio.com struct cxgbi_device *cdev = handle; 18837b36b6e0Skxie@chelsio.com 18847b36b6e0Skxie@chelsio.com switch (state) { 18857b36b6e0Skxie@chelsio.com case CXGB4_STATE_UP: 18867b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, UP.\n", cdev); 18877b36b6e0Skxie@chelsio.com break; 18887b36b6e0Skxie@chelsio.com case CXGB4_STATE_START_RECOVERY: 18897b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, RECOVERY.\n", cdev); 18907b36b6e0Skxie@chelsio.com /* close all connections */ 18917b36b6e0Skxie@chelsio.com break; 18927b36b6e0Skxie@chelsio.com case CXGB4_STATE_DOWN: 18937b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, DOWN.\n", cdev); 18947b36b6e0Skxie@chelsio.com break; 18957b36b6e0Skxie@chelsio.com case CXGB4_STATE_DETACH: 18967b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, DETACH.\n", cdev); 1897c3b331a3SThadeu Lima de Souza Cascardo cxgbi_device_unregister(cdev); 18987b36b6e0Skxie@chelsio.com break; 18997b36b6e0Skxie@chelsio.com default: 19007b36b6e0Skxie@chelsio.com pr_info("cdev 0x%p, unknown state %d.\n", cdev, state); 19017b36b6e0Skxie@chelsio.com break; 19027b36b6e0Skxie@chelsio.com } 19037b36b6e0Skxie@chelsio.com return 0; 19047b36b6e0Skxie@chelsio.com } 19057b36b6e0Skxie@chelsio.com 19067b36b6e0Skxie@chelsio.com static int __init cxgb4i_init_module(void) 19077b36b6e0Skxie@chelsio.com { 19087b36b6e0Skxie@chelsio.com int rc; 19097b36b6e0Skxie@chelsio.com 19107b36b6e0Skxie@chelsio.com printk(KERN_INFO "%s", version); 19117b36b6e0Skxie@chelsio.com 19127b36b6e0Skxie@chelsio.com rc = cxgbi_iscsi_init(&cxgb4i_iscsi_transport, &cxgb4i_stt); 19137b36b6e0Skxie@chelsio.com if (rc < 0) 19147b36b6e0Skxie@chelsio.com return rc; 19157b36b6e0Skxie@chelsio.com cxgb4_register_uld(CXGB4_ULD_ISCSI, &cxgb4i_uld_info); 1916759a0cc5SAnish Bhatt 19177b36b6e0Skxie@chelsio.com return 0; 19187b36b6e0Skxie@chelsio.com } 19197b36b6e0Skxie@chelsio.com 19207b36b6e0Skxie@chelsio.com static void __exit cxgb4i_exit_module(void) 19217b36b6e0Skxie@chelsio.com { 19227b36b6e0Skxie@chelsio.com cxgb4_unregister_uld(CXGB4_ULD_ISCSI); 19237b36b6e0Skxie@chelsio.com cxgbi_device_unregister_all(CXGBI_FLAG_DEV_T4); 19247b36b6e0Skxie@chelsio.com cxgbi_iscsi_cleanup(&cxgb4i_iscsi_transport, &cxgb4i_stt); 19257b36b6e0Skxie@chelsio.com } 19267b36b6e0Skxie@chelsio.com 19277b36b6e0Skxie@chelsio.com module_init(cxgb4i_init_module); 19287b36b6e0Skxie@chelsio.com module_exit(cxgb4i_exit_module); 1929