1cf4e6363SMichael Chan /* bnx2i_hwi.c: Broadcom NetXtreme II iSCSI driver. 2cf4e6363SMichael Chan * 30b3bf387SEddie Wai * Copyright (c) 2006 - 2013 Broadcom Corporation 4cf4e6363SMichael Chan * Copyright (c) 2007, 2008 Red Hat, Inc. All rights reserved. 5cf4e6363SMichael Chan * Copyright (c) 2007, 2008 Mike Christie 6cf4e6363SMichael Chan * 7cf4e6363SMichael Chan * This program is free software; you can redistribute it and/or modify 8cf4e6363SMichael Chan * it under the terms of the GNU General Public License as published by 9cf4e6363SMichael Chan * the Free Software Foundation. 10cf4e6363SMichael Chan * 11cf4e6363SMichael Chan * Written by: Anil Veerabhadrappa (anilgv@broadcom.com) 1211cec1e2SEddie Wai * Maintained by: Eddie Wai (eddie.wai@broadcom.com) 13cf4e6363SMichael Chan */ 14cf4e6363SMichael Chan 155a0e3ad6STejun Heo #include <linux/gfp.h> 16cf4e6363SMichael Chan #include <scsi/scsi_tcq.h> 17cf4e6363SMichael Chan #include <scsi/libiscsi.h> 18cf4e6363SMichael Chan #include "bnx2i.h" 19cf4e6363SMichael Chan 20b5cf6b63SEddie Wai DECLARE_PER_CPU(struct bnx2i_percpu_s, bnx2i_percpu); 21b5cf6b63SEddie Wai 22cf4e6363SMichael Chan /** 23cf4e6363SMichael Chan * bnx2i_get_cid_num - get cid from ep 24cf4e6363SMichael Chan * @ep: endpoint pointer 25cf4e6363SMichael Chan * 26cf4e6363SMichael Chan * Only applicable to 57710 family of devices 27cf4e6363SMichael Chan */ 28cf4e6363SMichael Chan static u32 bnx2i_get_cid_num(struct bnx2i_endpoint *ep) 29cf4e6363SMichael Chan { 30cf4e6363SMichael Chan u32 cid; 31cf4e6363SMichael Chan 32cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 33cf4e6363SMichael Chan cid = ep->ep_cid; 34cf4e6363SMichael Chan else 35cf4e6363SMichael Chan cid = GET_CID_NUM(ep->ep_cid); 36cf4e6363SMichael Chan return cid; 37cf4e6363SMichael Chan } 38cf4e6363SMichael Chan 39cf4e6363SMichael Chan 40cf4e6363SMichael Chan /** 41cf4e6363SMichael Chan * bnx2i_adjust_qp_size - Adjust SQ/RQ/CQ size for 57710 device type 42cf4e6363SMichael Chan * @hba: Adapter for which adjustments is to be made 43cf4e6363SMichael Chan * 44cf4e6363SMichael Chan * Only applicable to 57710 family of devices 45cf4e6363SMichael Chan */ 46cf4e6363SMichael Chan static void bnx2i_adjust_qp_size(struct bnx2i_hba *hba) 47cf4e6363SMichael Chan { 48cf4e6363SMichael Chan u32 num_elements_per_pg; 49cf4e6363SMichael Chan 50cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_5706, &hba->cnic_dev_type) || 51cf4e6363SMichael Chan test_bit(BNX2I_NX2_DEV_5708, &hba->cnic_dev_type) || 52cf4e6363SMichael Chan test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) { 53cf4e6363SMichael Chan if (!is_power_of_2(hba->max_sqes)) 54cf4e6363SMichael Chan hba->max_sqes = rounddown_pow_of_two(hba->max_sqes); 55cf4e6363SMichael Chan 56cf4e6363SMichael Chan if (!is_power_of_2(hba->max_rqes)) 57cf4e6363SMichael Chan hba->max_rqes = rounddown_pow_of_two(hba->max_rqes); 58cf4e6363SMichael Chan } 59cf4e6363SMichael Chan 60cf4e6363SMichael Chan /* Adjust each queue size if the user selection does not 61cf4e6363SMichael Chan * yield integral num of page buffers 62cf4e6363SMichael Chan */ 63cf4e6363SMichael Chan /* adjust SQ */ 64be1fefc2SMichael Chan num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_SQ_WQE_SIZE; 65cf4e6363SMichael Chan if (hba->max_sqes < num_elements_per_pg) 66cf4e6363SMichael Chan hba->max_sqes = num_elements_per_pg; 67cf4e6363SMichael Chan else if (hba->max_sqes % num_elements_per_pg) 68cf4e6363SMichael Chan hba->max_sqes = (hba->max_sqes + num_elements_per_pg - 1) & 69cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 70cf4e6363SMichael Chan 71cf4e6363SMichael Chan /* adjust CQ */ 72be1fefc2SMichael Chan num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_CQE_SIZE; 73cf4e6363SMichael Chan if (hba->max_cqes < num_elements_per_pg) 74cf4e6363SMichael Chan hba->max_cqes = num_elements_per_pg; 75cf4e6363SMichael Chan else if (hba->max_cqes % num_elements_per_pg) 76cf4e6363SMichael Chan hba->max_cqes = (hba->max_cqes + num_elements_per_pg - 1) & 77cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 78cf4e6363SMichael Chan 79cf4e6363SMichael Chan /* adjust RQ */ 80be1fefc2SMichael Chan num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_RQ_WQE_SIZE; 81cf4e6363SMichael Chan if (hba->max_rqes < num_elements_per_pg) 82cf4e6363SMichael Chan hba->max_rqes = num_elements_per_pg; 83cf4e6363SMichael Chan else if (hba->max_rqes % num_elements_per_pg) 84cf4e6363SMichael Chan hba->max_rqes = (hba->max_rqes + num_elements_per_pg - 1) & 85cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 86cf4e6363SMichael Chan } 87cf4e6363SMichael Chan 88cf4e6363SMichael Chan 89cf4e6363SMichael Chan /** 90cf4e6363SMichael Chan * bnx2i_get_link_state - get network interface link state 91cf4e6363SMichael Chan * @hba: adapter instance pointer 92cf4e6363SMichael Chan * 93cf4e6363SMichael Chan * updates adapter structure flag based on netdev state 94cf4e6363SMichael Chan */ 95cf4e6363SMichael Chan static void bnx2i_get_link_state(struct bnx2i_hba *hba) 96cf4e6363SMichael Chan { 97cf4e6363SMichael Chan if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state)) 98cf4e6363SMichael Chan set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); 99cf4e6363SMichael Chan else 100cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); 101cf4e6363SMichael Chan } 102cf4e6363SMichael Chan 103cf4e6363SMichael Chan 104cf4e6363SMichael Chan /** 105cf4e6363SMichael Chan * bnx2i_iscsi_license_error - displays iscsi license related error message 106cf4e6363SMichael Chan * @hba: adapter instance pointer 107cf4e6363SMichael Chan * @error_code: error classification 108cf4e6363SMichael Chan * 109cf4e6363SMichael Chan * Puts out an error log when driver is unable to offload iscsi connection 110cf4e6363SMichael Chan * due to license restrictions 111cf4e6363SMichael Chan */ 112cf4e6363SMichael Chan static void bnx2i_iscsi_license_error(struct bnx2i_hba *hba, u32 error_code) 113cf4e6363SMichael Chan { 114cf4e6363SMichael Chan if (error_code == ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED) 115cf4e6363SMichael Chan /* iSCSI offload not supported on this device */ 116cf4e6363SMichael Chan printk(KERN_ERR "bnx2i: iSCSI not supported, dev=%s\n", 117cf4e6363SMichael Chan hba->netdev->name); 118cf4e6363SMichael Chan if (error_code == ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED) 119cf4e6363SMichael Chan /* iSCSI offload not supported on this LOM device */ 120cf4e6363SMichael Chan printk(KERN_ERR "bnx2i: LOM is not enable to " 121cf4e6363SMichael Chan "offload iSCSI connections, dev=%s\n", 122cf4e6363SMichael Chan hba->netdev->name); 123cf4e6363SMichael Chan set_bit(ADAPTER_STATE_INIT_FAILED, &hba->adapter_state); 124cf4e6363SMichael Chan } 125cf4e6363SMichael Chan 126cf4e6363SMichael Chan 127cf4e6363SMichael Chan /** 128cf4e6363SMichael Chan * bnx2i_arm_cq_event_coalescing - arms CQ to enable EQ notification 1293f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 130cf4e6363SMichael Chan * @action: action, ARM or DISARM. For now only ARM_CQE is used 131cf4e6363SMichael Chan * 132cf4e6363SMichael Chan * Arm'ing CQ will enable chip to generate global EQ events inorder to interrupt 133cf4e6363SMichael Chan * the driver. EQ event is generated CQ index is hit or at least 1 CQ is 134cf4e6363SMichael Chan * outstanding and on chip timer expires 135cf4e6363SMichael Chan */ 136b5cf6b63SEddie Wai int bnx2i_arm_cq_event_coalescing(struct bnx2i_endpoint *ep, u8 action) 137cf4e6363SMichael Chan { 138cf4e6363SMichael Chan struct bnx2i_5771x_cq_db *cq_db; 139cf4e6363SMichael Chan u16 cq_index; 140b5cf6b63SEddie Wai u16 next_index = 0; 1418776193bSAnil Veerabhadrappa u32 num_active_cmds; 142cf4e6363SMichael Chan 1438776193bSAnil Veerabhadrappa /* Coalesce CQ entries only on 10G devices */ 144cf4e6363SMichael Chan if (!test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 145b5cf6b63SEddie Wai return 0; 146cf4e6363SMichael Chan 1478776193bSAnil Veerabhadrappa /* Do not update CQ DB multiple times before firmware writes 1488776193bSAnil Veerabhadrappa * '0xFFFF' to CQDB->SQN field. Deviation may cause spurious 1498776193bSAnil Veerabhadrappa * interrupts and other unwanted results 1508776193bSAnil Veerabhadrappa */ 1518776193bSAnil Veerabhadrappa cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt; 1529ae58e14SEddie Wai 1539ae58e14SEddie Wai if (action != CNIC_ARM_CQE_FP) 1548776193bSAnil Veerabhadrappa if (cq_db->sqn[0] && cq_db->sqn[0] != 0xFFFF) 155b5cf6b63SEddie Wai return 0; 1568776193bSAnil Veerabhadrappa 1579ae58e14SEddie Wai if (action == CNIC_ARM_CQE || action == CNIC_ARM_CQE_FP) { 158b5cf6b63SEddie Wai num_active_cmds = atomic_read(&ep->num_active_cmds); 1598776193bSAnil Veerabhadrappa if (num_active_cmds <= event_coal_min) 1608776193bSAnil Veerabhadrappa next_index = 1; 161b5cf6b63SEddie Wai else { 162b5cf6b63SEddie Wai next_index = num_active_cmds >> ep->ec_shift; 163b5cf6b63SEddie Wai if (next_index > num_active_cmds - event_coal_min) 164b5cf6b63SEddie Wai next_index = num_active_cmds - event_coal_min; 165b5cf6b63SEddie Wai } 1668776193bSAnil Veerabhadrappa if (!next_index) 1678776193bSAnil Veerabhadrappa next_index = 1; 1688776193bSAnil Veerabhadrappa cq_index = ep->qp.cqe_exp_seq_sn + next_index - 1; 1698776193bSAnil Veerabhadrappa if (cq_index > ep->qp.cqe_size * 2) 1708776193bSAnil Veerabhadrappa cq_index -= ep->qp.cqe_size * 2; 1718776193bSAnil Veerabhadrappa if (!cq_index) 172cf4e6363SMichael Chan cq_index = 1; 1738776193bSAnil Veerabhadrappa 174cf4e6363SMichael Chan cq_db->sqn[0] = cq_index; 175cf4e6363SMichael Chan } 176b5cf6b63SEddie Wai return next_index; 177cf4e6363SMichael Chan } 178cf4e6363SMichael Chan 179cf4e6363SMichael Chan 180cf4e6363SMichael Chan /** 181cf4e6363SMichael Chan * bnx2i_get_rq_buf - copy RQ buffer contents to driver buffer 18225985edcSLucas De Marchi * @conn: iscsi connection on which RQ event occurred 183cf4e6363SMichael Chan * @ptr: driver buffer to which RQ buffer contents is to 184cf4e6363SMichael Chan * be copied 185cf4e6363SMichael Chan * @len: length of valid data inside RQ buf 186cf4e6363SMichael Chan * 187cf4e6363SMichael Chan * Copies RQ buffer contents from shared (DMA'able) memory region to 188cf4e6363SMichael Chan * driver buffer. RQ is used to DMA unsolicitated iscsi pdu's and 189cf4e6363SMichael Chan * scsi sense info 190cf4e6363SMichael Chan */ 191cf4e6363SMichael Chan void bnx2i_get_rq_buf(struct bnx2i_conn *bnx2i_conn, char *ptr, int len) 192cf4e6363SMichael Chan { 193cf4e6363SMichael Chan if (!bnx2i_conn->ep->qp.rqe_left) 194cf4e6363SMichael Chan return; 195cf4e6363SMichael Chan 196cf4e6363SMichael Chan bnx2i_conn->ep->qp.rqe_left--; 197cf4e6363SMichael Chan memcpy(ptr, (u8 *) bnx2i_conn->ep->qp.rq_cons_qe, len); 198cf4e6363SMichael Chan if (bnx2i_conn->ep->qp.rq_cons_qe == bnx2i_conn->ep->qp.rq_last_qe) { 199cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_qe = bnx2i_conn->ep->qp.rq_first_qe; 200cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_idx = 0; 201cf4e6363SMichael Chan } else { 202cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_qe++; 203cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_idx++; 204cf4e6363SMichael Chan } 205cf4e6363SMichael Chan } 206cf4e6363SMichael Chan 207cf4e6363SMichael Chan 208cf4e6363SMichael Chan static void bnx2i_ring_577xx_doorbell(struct bnx2i_conn *conn) 209cf4e6363SMichael Chan { 210cf4e6363SMichael Chan struct bnx2i_5771x_dbell dbell; 211cf4e6363SMichael Chan u32 msg; 212cf4e6363SMichael Chan 213cf4e6363SMichael Chan memset(&dbell, 0, sizeof(dbell)); 214cf4e6363SMichael Chan dbell.dbell.header = (B577XX_ISCSI_CONNECTION_TYPE << 215cf4e6363SMichael Chan B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT); 216cf4e6363SMichael Chan msg = *((u32 *)&dbell); 217cf4e6363SMichael Chan /* TODO : get doorbell register mapping */ 218cf4e6363SMichael Chan writel(cpu_to_le32(msg), conn->ep->qp.ctx_base); 219cf4e6363SMichael Chan } 220cf4e6363SMichael Chan 221cf4e6363SMichael Chan 222cf4e6363SMichael Chan /** 223cf4e6363SMichael Chan * bnx2i_put_rq_buf - Replenish RQ buffer, if required ring on chip doorbell 224cf4e6363SMichael Chan * @conn: iscsi connection on which event to post 225cf4e6363SMichael Chan * @count: number of RQ buffer being posted to chip 226cf4e6363SMichael Chan * 227cf4e6363SMichael Chan * No need to ring hardware doorbell for 57710 family of devices 228cf4e6363SMichael Chan */ 229cf4e6363SMichael Chan void bnx2i_put_rq_buf(struct bnx2i_conn *bnx2i_conn, int count) 230cf4e6363SMichael Chan { 231cf4e6363SMichael Chan struct bnx2i_5771x_sq_rq_db *rq_db; 232cf4e6363SMichael Chan u16 hi_bit = (bnx2i_conn->ep->qp.rq_prod_idx & 0x8000); 233cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 234cf4e6363SMichael Chan 235cf4e6363SMichael Chan ep->qp.rqe_left += count; 236cf4e6363SMichael Chan ep->qp.rq_prod_idx &= 0x7FFF; 237cf4e6363SMichael Chan ep->qp.rq_prod_idx += count; 238cf4e6363SMichael Chan 239cf4e6363SMichael Chan if (ep->qp.rq_prod_idx > bnx2i_conn->hba->max_rqes) { 240cf4e6363SMichael Chan ep->qp.rq_prod_idx %= bnx2i_conn->hba->max_rqes; 241cf4e6363SMichael Chan if (!hi_bit) 242cf4e6363SMichael Chan ep->qp.rq_prod_idx |= 0x8000; 243cf4e6363SMichael Chan } else 244cf4e6363SMichael Chan ep->qp.rq_prod_idx |= hi_bit; 245cf4e6363SMichael Chan 246cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 247cf4e6363SMichael Chan rq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.rq_pgtbl_virt; 248cf4e6363SMichael Chan rq_db->prod_idx = ep->qp.rq_prod_idx; 249cf4e6363SMichael Chan /* no need to ring hardware doorbell for 57710 */ 250cf4e6363SMichael Chan } else { 251cf4e6363SMichael Chan writew(ep->qp.rq_prod_idx, 252cf4e6363SMichael Chan ep->qp.ctx_base + CNIC_RECV_DOORBELL); 253cf4e6363SMichael Chan } 254cf4e6363SMichael Chan mmiowb(); 255cf4e6363SMichael Chan } 256cf4e6363SMichael Chan 257cf4e6363SMichael Chan 258cf4e6363SMichael Chan /** 259cf4e6363SMichael Chan * bnx2i_ring_sq_dbell - Ring SQ doorbell to wake-up the processing engine 260cf4e6363SMichael Chan * @conn: iscsi connection to which new SQ entries belong 261cf4e6363SMichael Chan * @count: number of SQ WQEs to post 262cf4e6363SMichael Chan * 263cf4e6363SMichael Chan * SQ DB is updated in host memory and TX Doorbell is rung for 57710 family 264cf4e6363SMichael Chan * of devices. For 5706/5708/5709 new SQ WQE count is written into the 265cf4e6363SMichael Chan * doorbell register 266cf4e6363SMichael Chan */ 267cf4e6363SMichael Chan static void bnx2i_ring_sq_dbell(struct bnx2i_conn *bnx2i_conn, int count) 268cf4e6363SMichael Chan { 269cf4e6363SMichael Chan struct bnx2i_5771x_sq_rq_db *sq_db; 270cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 271cf4e6363SMichael Chan 272b5cf6b63SEddie Wai atomic_inc(&ep->num_active_cmds); 273cf4e6363SMichael Chan wmb(); /* flush SQ WQE memory before the doorbell is rung */ 274cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 275cf4e6363SMichael Chan sq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.sq_pgtbl_virt; 276cf4e6363SMichael Chan sq_db->prod_idx = ep->qp.sq_prod_idx; 277cf4e6363SMichael Chan bnx2i_ring_577xx_doorbell(bnx2i_conn); 278cf4e6363SMichael Chan } else 279cf4e6363SMichael Chan writew(count, ep->qp.ctx_base + CNIC_SEND_DOORBELL); 280cf4e6363SMichael Chan 281cf4e6363SMichael Chan mmiowb(); /* flush posted PCI writes */ 282cf4e6363SMichael Chan } 283cf4e6363SMichael Chan 284cf4e6363SMichael Chan 285cf4e6363SMichael Chan /** 286cf4e6363SMichael Chan * bnx2i_ring_dbell_update_sq_params - update SQ driver parameters 287cf4e6363SMichael Chan * @conn: iscsi connection to which new SQ entries belong 288cf4e6363SMichael Chan * @count: number of SQ WQEs to post 289cf4e6363SMichael Chan * 290cf4e6363SMichael Chan * this routine will update SQ driver parameters and ring the doorbell 291cf4e6363SMichael Chan */ 292cf4e6363SMichael Chan static void bnx2i_ring_dbell_update_sq_params(struct bnx2i_conn *bnx2i_conn, 293cf4e6363SMichael Chan int count) 294cf4e6363SMichael Chan { 295cf4e6363SMichael Chan int tmp_cnt; 296cf4e6363SMichael Chan 297cf4e6363SMichael Chan if (count == 1) { 298cf4e6363SMichael Chan if (bnx2i_conn->ep->qp.sq_prod_qe == 299cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_last_qe) 300cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe = 301cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_first_qe; 302cf4e6363SMichael Chan else 303cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe++; 304cf4e6363SMichael Chan } else { 305cf4e6363SMichael Chan if ((bnx2i_conn->ep->qp.sq_prod_qe + count) <= 306cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_last_qe) 307cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe += count; 308cf4e6363SMichael Chan else { 309cf4e6363SMichael Chan tmp_cnt = bnx2i_conn->ep->qp.sq_last_qe - 310cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 311cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe = 312cf4e6363SMichael Chan &bnx2i_conn->ep->qp.sq_first_qe[count - 313cf4e6363SMichael Chan (tmp_cnt + 1)]; 314cf4e6363SMichael Chan } 315cf4e6363SMichael Chan } 316cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_idx += count; 317cf4e6363SMichael Chan /* Ring the doorbell */ 318cf4e6363SMichael Chan bnx2i_ring_sq_dbell(bnx2i_conn, bnx2i_conn->ep->qp.sq_prod_idx); 319cf4e6363SMichael Chan } 320cf4e6363SMichael Chan 321cf4e6363SMichael Chan 322cf4e6363SMichael Chan /** 323cf4e6363SMichael Chan * bnx2i_send_iscsi_login - post iSCSI login request MP WQE to hardware 324cf4e6363SMichael Chan * @conn: iscsi connection 325cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 326cf4e6363SMichael Chan * a WQE to sent to chip for further processing 327cf4e6363SMichael Chan * 328cf4e6363SMichael Chan * prepare and post an iSCSI Login request WQE to CNIC firmware 329cf4e6363SMichael Chan */ 330cf4e6363SMichael Chan int bnx2i_send_iscsi_login(struct bnx2i_conn *bnx2i_conn, 331cf4e6363SMichael Chan struct iscsi_task *task) 332cf4e6363SMichael Chan { 333cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 334cf4e6363SMichael Chan struct bnx2i_login_request *login_wqe; 33512352183SNicholas Bellinger struct iscsi_login_req *login_hdr; 336cf4e6363SMichael Chan u32 dword; 337cf4e6363SMichael Chan 338cf4e6363SMichael Chan bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; 33912352183SNicholas Bellinger login_hdr = (struct iscsi_login_req *)task->hdr; 340cf4e6363SMichael Chan login_wqe = (struct bnx2i_login_request *) 341cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 342cf4e6363SMichael Chan 343cf4e6363SMichael Chan login_wqe->op_code = login_hdr->opcode; 344cf4e6363SMichael Chan login_wqe->op_attr = login_hdr->flags; 345cf4e6363SMichael Chan login_wqe->version_max = login_hdr->max_version; 346cf4e6363SMichael Chan login_wqe->version_min = login_hdr->min_version; 347cf4e6363SMichael Chan login_wqe->data_length = ntoh24(login_hdr->dlength); 348cf4e6363SMichael Chan login_wqe->isid_lo = *((u32 *) login_hdr->isid); 349cf4e6363SMichael Chan login_wqe->isid_hi = *((u16 *) login_hdr->isid + 2); 350cf4e6363SMichael Chan login_wqe->tsih = login_hdr->tsih; 351cf4e6363SMichael Chan login_wqe->itt = task->itt | 352cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << ISCSI_LOGIN_REQUEST_TYPE_SHIFT); 353cf4e6363SMichael Chan login_wqe->cid = login_hdr->cid; 354cf4e6363SMichael Chan 355cf4e6363SMichael Chan login_wqe->cmd_sn = be32_to_cpu(login_hdr->cmdsn); 356cf4e6363SMichael Chan login_wqe->exp_stat_sn = be32_to_cpu(login_hdr->exp_statsn); 3572e15efc7SAnil Veerabhadrappa login_wqe->flags = ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN; 358cf4e6363SMichael Chan 359cf4e6363SMichael Chan login_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma; 360cf4e6363SMichael Chan login_wqe->resp_bd_list_addr_hi = 361cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32); 362cf4e6363SMichael Chan 363cf4e6363SMichael Chan dword = ((1 << ISCSI_LOGIN_REQUEST_NUM_RESP_BDS_SHIFT) | 364cf4e6363SMichael Chan (bnx2i_conn->gen_pdu.resp_buf_size << 365cf4e6363SMichael Chan ISCSI_LOGIN_REQUEST_RESP_BUFFER_LENGTH_SHIFT)); 366cf4e6363SMichael Chan login_wqe->resp_buffer = dword; 367cf4e6363SMichael Chan login_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma; 368cf4e6363SMichael Chan login_wqe->bd_list_addr_hi = 369cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32); 370cf4e6363SMichael Chan login_wqe->num_bds = 1; 371cf4e6363SMichael Chan login_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 372cf4e6363SMichael Chan 373cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 374cf4e6363SMichael Chan return 0; 375cf4e6363SMichael Chan } 376cf4e6363SMichael Chan 377cf4e6363SMichael Chan /** 378cf4e6363SMichael Chan * bnx2i_send_iscsi_tmf - post iSCSI task management request MP WQE to hardware 379cf4e6363SMichael Chan * @conn: iscsi connection 380cf4e6363SMichael Chan * @mtask: driver command structure which is requesting 381cf4e6363SMichael Chan * a WQE to sent to chip for further processing 382cf4e6363SMichael Chan * 383cf4e6363SMichael Chan * prepare and post an iSCSI Login request WQE to CNIC firmware 384cf4e6363SMichael Chan */ 385cf4e6363SMichael Chan int bnx2i_send_iscsi_tmf(struct bnx2i_conn *bnx2i_conn, 386cf4e6363SMichael Chan struct iscsi_task *mtask) 387cf4e6363SMichael Chan { 388cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 389cf4e6363SMichael Chan struct iscsi_tm *tmfabort_hdr; 390cf4e6363SMichael Chan struct scsi_cmnd *ref_sc; 391cf4e6363SMichael Chan struct iscsi_task *ctask; 392cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 393cf4e6363SMichael Chan struct bnx2i_tmf_request *tmfabort_wqe; 394cf4e6363SMichael Chan u32 dword; 395cf464fc5SEddie Wai u32 scsi_lun[2]; 396cf4e6363SMichael Chan 397cf4e6363SMichael Chan bnx2i_cmd = (struct bnx2i_cmd *)mtask->dd_data; 398cf4e6363SMichael Chan tmfabort_hdr = (struct iscsi_tm *)mtask->hdr; 399cf4e6363SMichael Chan tmfabort_wqe = (struct bnx2i_tmf_request *) 400cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 401cf4e6363SMichael Chan 402cf4e6363SMichael Chan tmfabort_wqe->op_code = tmfabort_hdr->opcode; 403c47b4012SEddie Wai tmfabort_wqe->op_attr = tmfabort_hdr->flags; 404cf4e6363SMichael Chan 405cf4e6363SMichael Chan tmfabort_wqe->itt = (mtask->itt | (ISCSI_TASK_TYPE_MPATH << 14)); 406cf4e6363SMichael Chan tmfabort_wqe->reserved2 = 0; 407cf4e6363SMichael Chan tmfabort_wqe->cmd_sn = be32_to_cpu(tmfabort_hdr->cmdsn); 408cf4e6363SMichael Chan 409c47b4012SEddie Wai switch (tmfabort_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) { 410c47b4012SEddie Wai case ISCSI_TM_FUNC_ABORT_TASK: 411c47b4012SEddie Wai case ISCSI_TM_FUNC_TASK_REASSIGN: 412cf4e6363SMichael Chan ctask = iscsi_itt_to_task(conn, tmfabort_hdr->rtt); 41385fef202SAnil Veerabhadrappa if (!ctask || !ctask->sc) 414cf4e6363SMichael Chan /* 415c47b4012SEddie Wai * the iscsi layer must have completed the cmd while 416cf4e6363SMichael Chan * was starting up. 41785fef202SAnil Veerabhadrappa * 418c47b4012SEddie Wai * Note: In the case of a SCSI cmd timeout, the task's 419c47b4012SEddie Wai * sc is still active; hence ctask->sc != 0 42085fef202SAnil Veerabhadrappa * In this case, the task must be aborted 421cf4e6363SMichael Chan */ 422cf4e6363SMichael Chan return 0; 42385fef202SAnil Veerabhadrappa 424cf4e6363SMichael Chan ref_sc = ctask->sc; 425cf4e6363SMichael Chan if (ref_sc->sc_data_direction == DMA_TO_DEVICE) 426c47b4012SEddie Wai dword = (ISCSI_TASK_TYPE_WRITE << 427c47b4012SEddie Wai ISCSI_CMD_REQUEST_TYPE_SHIFT); 428cf4e6363SMichael Chan else 429c47b4012SEddie Wai dword = (ISCSI_TASK_TYPE_READ << 430c47b4012SEddie Wai ISCSI_CMD_REQUEST_TYPE_SHIFT); 431c47b4012SEddie Wai tmfabort_wqe->ref_itt = (dword | 432c47b4012SEddie Wai (tmfabort_hdr->rtt & ISCSI_ITT_MASK)); 433c47b4012SEddie Wai break; 434c47b4012SEddie Wai default: 435c47b4012SEddie Wai tmfabort_wqe->ref_itt = RESERVED_ITT; 436c47b4012SEddie Wai } 437516f43a2SAndy Grover memcpy(scsi_lun, &tmfabort_hdr->lun, sizeof(struct scsi_lun)); 438cf464fc5SEddie Wai tmfabort_wqe->lun[0] = be32_to_cpu(scsi_lun[0]); 439cf464fc5SEddie Wai tmfabort_wqe->lun[1] = be32_to_cpu(scsi_lun[1]); 440cf464fc5SEddie Wai 441cf4e6363SMichael Chan tmfabort_wqe->ref_cmd_sn = be32_to_cpu(tmfabort_hdr->refcmdsn); 442cf4e6363SMichael Chan 443cf4e6363SMichael Chan tmfabort_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma; 444cf4e6363SMichael Chan tmfabort_wqe->bd_list_addr_hi = (u32) 445cf4e6363SMichael Chan ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 446cf4e6363SMichael Chan tmfabort_wqe->num_bds = 1; 447cf4e6363SMichael Chan tmfabort_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 448cf4e6363SMichael Chan 449cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 450cf4e6363SMichael Chan return 0; 451cf4e6363SMichael Chan } 452cf4e6363SMichael Chan 453cf4e6363SMichael Chan /** 45409813ba5SEddie Wai * bnx2i_send_iscsi_text - post iSCSI text WQE to hardware 45509813ba5SEddie Wai * @conn: iscsi connection 45609813ba5SEddie Wai * @mtask: driver command structure which is requesting 45709813ba5SEddie Wai * a WQE to sent to chip for further processing 45809813ba5SEddie Wai * 45909813ba5SEddie Wai * prepare and post an iSCSI Text request WQE to CNIC firmware 46009813ba5SEddie Wai */ 46109813ba5SEddie Wai int bnx2i_send_iscsi_text(struct bnx2i_conn *bnx2i_conn, 46209813ba5SEddie Wai struct iscsi_task *mtask) 46309813ba5SEddie Wai { 46409813ba5SEddie Wai struct bnx2i_cmd *bnx2i_cmd; 46509813ba5SEddie Wai struct bnx2i_text_request *text_wqe; 46609813ba5SEddie Wai struct iscsi_text *text_hdr; 46709813ba5SEddie Wai u32 dword; 46809813ba5SEddie Wai 46909813ba5SEddie Wai bnx2i_cmd = (struct bnx2i_cmd *)mtask->dd_data; 47009813ba5SEddie Wai text_hdr = (struct iscsi_text *)mtask->hdr; 47109813ba5SEddie Wai text_wqe = (struct bnx2i_text_request *) bnx2i_conn->ep->qp.sq_prod_qe; 47209813ba5SEddie Wai 47309813ba5SEddie Wai memset(text_wqe, 0, sizeof(struct bnx2i_text_request)); 47409813ba5SEddie Wai 47509813ba5SEddie Wai text_wqe->op_code = text_hdr->opcode; 47609813ba5SEddie Wai text_wqe->op_attr = text_hdr->flags; 47709813ba5SEddie Wai text_wqe->data_length = ntoh24(text_hdr->dlength); 47809813ba5SEddie Wai text_wqe->itt = mtask->itt | 47909813ba5SEddie Wai (ISCSI_TASK_TYPE_MPATH << ISCSI_TEXT_REQUEST_TYPE_SHIFT); 48009813ba5SEddie Wai text_wqe->ttt = be32_to_cpu(text_hdr->ttt); 48109813ba5SEddie Wai 48209813ba5SEddie Wai text_wqe->cmd_sn = be32_to_cpu(text_hdr->cmdsn); 48309813ba5SEddie Wai 48409813ba5SEddie Wai text_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma; 48509813ba5SEddie Wai text_wqe->resp_bd_list_addr_hi = 48609813ba5SEddie Wai (u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32); 48709813ba5SEddie Wai 48809813ba5SEddie Wai dword = ((1 << ISCSI_TEXT_REQUEST_NUM_RESP_BDS_SHIFT) | 48909813ba5SEddie Wai (bnx2i_conn->gen_pdu.resp_buf_size << 49009813ba5SEddie Wai ISCSI_TEXT_REQUEST_RESP_BUFFER_LENGTH_SHIFT)); 49109813ba5SEddie Wai text_wqe->resp_buffer = dword; 49209813ba5SEddie Wai text_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma; 49309813ba5SEddie Wai text_wqe->bd_list_addr_hi = 49409813ba5SEddie Wai (u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32); 49509813ba5SEddie Wai text_wqe->num_bds = 1; 49609813ba5SEddie Wai text_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 49709813ba5SEddie Wai 49809813ba5SEddie Wai bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 49909813ba5SEddie Wai return 0; 50009813ba5SEddie Wai } 50109813ba5SEddie Wai 50209813ba5SEddie Wai 50309813ba5SEddie Wai /** 504cf4e6363SMichael Chan * bnx2i_send_iscsi_scsicmd - post iSCSI scsicmd request WQE to hardware 505cf4e6363SMichael Chan * @conn: iscsi connection 506cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 507cf4e6363SMichael Chan * a WQE to sent to chip for further processing 508cf4e6363SMichael Chan * 509cf4e6363SMichael Chan * prepare and post an iSCSI SCSI-CMD request WQE to CNIC firmware 510cf4e6363SMichael Chan */ 511cf4e6363SMichael Chan int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *bnx2i_conn, 512cf4e6363SMichael Chan struct bnx2i_cmd *cmd) 513cf4e6363SMichael Chan { 514cf4e6363SMichael Chan struct bnx2i_cmd_request *scsi_cmd_wqe; 515cf4e6363SMichael Chan 516cf4e6363SMichael Chan scsi_cmd_wqe = (struct bnx2i_cmd_request *) 517cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 518cf4e6363SMichael Chan memcpy(scsi_cmd_wqe, &cmd->req, sizeof(struct bnx2i_cmd_request)); 519cf4e6363SMichael Chan scsi_cmd_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 520cf4e6363SMichael Chan 521cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 522cf4e6363SMichael Chan return 0; 523cf4e6363SMichael Chan } 524cf4e6363SMichael Chan 525cf4e6363SMichael Chan /** 526cf4e6363SMichael Chan * bnx2i_send_iscsi_nopout - post iSCSI NOPOUT request WQE to hardware 527cf4e6363SMichael Chan * @conn: iscsi connection 528cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 529cf4e6363SMichael Chan * a WQE to sent to chip for further processing 530cf4e6363SMichael Chan * @datap: payload buffer pointer 531cf4e6363SMichael Chan * @data_len: payload data length 532cf4e6363SMichael Chan * @unsol: indicated whether nopout pdu is unsolicited pdu or 533cf4e6363SMichael Chan * in response to target's NOPIN w/ TTT != FFFFFFFF 534cf4e6363SMichael Chan * 535cf4e6363SMichael Chan * prepare and post a nopout request WQE to CNIC firmware 536cf4e6363SMichael Chan */ 537cf4e6363SMichael Chan int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn, 53839304072SEddie Wai struct iscsi_task *task, 539cf4e6363SMichael Chan char *datap, int data_len, int unsol) 540cf4e6363SMichael Chan { 541cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 542cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 543cf4e6363SMichael Chan struct bnx2i_nop_out_request *nopout_wqe; 544cf4e6363SMichael Chan struct iscsi_nopout *nopout_hdr; 545cf4e6363SMichael Chan 546cf4e6363SMichael Chan bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; 547cf4e6363SMichael Chan nopout_hdr = (struct iscsi_nopout *)task->hdr; 548cf4e6363SMichael Chan nopout_wqe = (struct bnx2i_nop_out_request *)ep->qp.sq_prod_qe; 54970e14722SEddie Wai 55070e14722SEddie Wai memset(nopout_wqe, 0x00, sizeof(struct bnx2i_nop_out_request)); 55170e14722SEddie Wai 552cf4e6363SMichael Chan nopout_wqe->op_code = nopout_hdr->opcode; 553cf4e6363SMichael Chan nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL; 554516f43a2SAndy Grover memcpy(nopout_wqe->lun, &nopout_hdr->lun, 8); 555cf4e6363SMichael Chan 556cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 557ee15bd2dSEddie Wai u32 tmp = nopout_wqe->lun[0]; 558cf4e6363SMichael Chan /* 57710 requires LUN field to be swapped */ 559ee15bd2dSEddie Wai nopout_wqe->lun[0] = nopout_wqe->lun[1]; 560ee15bd2dSEddie Wai nopout_wqe->lun[1] = tmp; 561cf4e6363SMichael Chan } 562cf4e6363SMichael Chan 563cf4e6363SMichael Chan nopout_wqe->itt = ((u16)task->itt | 564cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << 565cf4e6363SMichael Chan ISCSI_TMF_REQUEST_TYPE_SHIFT)); 566610602f3SEddie Wai nopout_wqe->ttt = be32_to_cpu(nopout_hdr->ttt); 567cf4e6363SMichael Chan nopout_wqe->flags = 0; 568cf4e6363SMichael Chan if (!unsol) 569cf4e6363SMichael Chan nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION; 570cf4e6363SMichael Chan else if (nopout_hdr->itt == RESERVED_ITT) 571cf4e6363SMichael Chan nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION; 572cf4e6363SMichael Chan 573cf4e6363SMichael Chan nopout_wqe->cmd_sn = be32_to_cpu(nopout_hdr->cmdsn); 574cf4e6363SMichael Chan nopout_wqe->data_length = data_len; 575cf4e6363SMichael Chan if (data_len) { 576cf4e6363SMichael Chan /* handle payload data, not required in first release */ 577cf4e6363SMichael Chan printk(KERN_ALERT "NOPOUT: WARNING!! payload len != 0\n"); 578cf4e6363SMichael Chan } else { 579cf4e6363SMichael Chan nopout_wqe->bd_list_addr_lo = (u32) 580cf4e6363SMichael Chan bnx2i_conn->hba->mp_bd_dma; 581cf4e6363SMichael Chan nopout_wqe->bd_list_addr_hi = 582cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 583cf4e6363SMichael Chan nopout_wqe->num_bds = 1; 584cf4e6363SMichael Chan } 585cf4e6363SMichael Chan nopout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 586cf4e6363SMichael Chan 587cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 588cf4e6363SMichael Chan return 0; 589cf4e6363SMichael Chan } 590cf4e6363SMichael Chan 591cf4e6363SMichael Chan 592cf4e6363SMichael Chan /** 593cf4e6363SMichael Chan * bnx2i_send_iscsi_logout - post iSCSI logout request WQE to hardware 594cf4e6363SMichael Chan * @conn: iscsi connection 595cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 596cf4e6363SMichael Chan * a WQE to sent to chip for further processing 597cf4e6363SMichael Chan * 598cf4e6363SMichael Chan * prepare and post logout request WQE to CNIC firmware 599cf4e6363SMichael Chan */ 600cf4e6363SMichael Chan int bnx2i_send_iscsi_logout(struct bnx2i_conn *bnx2i_conn, 601cf4e6363SMichael Chan struct iscsi_task *task) 602cf4e6363SMichael Chan { 603cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 604cf4e6363SMichael Chan struct bnx2i_logout_request *logout_wqe; 605cf4e6363SMichael Chan struct iscsi_logout *logout_hdr; 606cf4e6363SMichael Chan 607cf4e6363SMichael Chan bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; 608cf4e6363SMichael Chan logout_hdr = (struct iscsi_logout *)task->hdr; 609cf4e6363SMichael Chan 610cf4e6363SMichael Chan logout_wqe = (struct bnx2i_logout_request *) 611cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 612cf4e6363SMichael Chan memset(logout_wqe, 0x00, sizeof(struct bnx2i_logout_request)); 613cf4e6363SMichael Chan 614cf4e6363SMichael Chan logout_wqe->op_code = logout_hdr->opcode; 615cf4e6363SMichael Chan logout_wqe->cmd_sn = be32_to_cpu(logout_hdr->cmdsn); 616cf4e6363SMichael Chan logout_wqe->op_attr = 617cf4e6363SMichael Chan logout_hdr->flags | ISCSI_LOGOUT_REQUEST_ALWAYS_ONE; 618cf4e6363SMichael Chan logout_wqe->itt = ((u16)task->itt | 619cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << 620cf4e6363SMichael Chan ISCSI_LOGOUT_REQUEST_TYPE_SHIFT)); 621cf4e6363SMichael Chan logout_wqe->data_length = 0; 622cf4e6363SMichael Chan logout_wqe->cid = 0; 623cf4e6363SMichael Chan 624cf4e6363SMichael Chan logout_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma; 625cf4e6363SMichael Chan logout_wqe->bd_list_addr_hi = (u32) 626cf4e6363SMichael Chan ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 627cf4e6363SMichael Chan logout_wqe->num_bds = 1; 628cf4e6363SMichael Chan logout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 629cf4e6363SMichael Chan 6302eefb20dSEddie Wai bnx2i_conn->ep->state = EP_STATE_LOGOUT_SENT; 6312eefb20dSEddie Wai 632cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 633cf4e6363SMichael Chan return 0; 634cf4e6363SMichael Chan } 635cf4e6363SMichael Chan 636cf4e6363SMichael Chan 637cf4e6363SMichael Chan /** 638cf4e6363SMichael Chan * bnx2i_update_iscsi_conn - post iSCSI logout request WQE to hardware 639cf4e6363SMichael Chan * @conn: iscsi connection which requires iscsi parameter update 640cf4e6363SMichael Chan * 641cf4e6363SMichael Chan * sends down iSCSI Conn Update request to move iSCSI conn to FFP 642cf4e6363SMichael Chan */ 643cf4e6363SMichael Chan void bnx2i_update_iscsi_conn(struct iscsi_conn *conn) 644cf4e6363SMichael Chan { 645cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn = conn->dd_data; 646cf4e6363SMichael Chan struct bnx2i_hba *hba = bnx2i_conn->hba; 647cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 648cf4e6363SMichael Chan struct iscsi_kwqe_conn_update *update_wqe; 649cf4e6363SMichael Chan struct iscsi_kwqe_conn_update conn_update_kwqe; 650cf4e6363SMichael Chan 651cf4e6363SMichael Chan update_wqe = &conn_update_kwqe; 652cf4e6363SMichael Chan 653cf4e6363SMichael Chan update_wqe->hdr.op_code = ISCSI_KWQE_OPCODE_UPDATE_CONN; 654cf4e6363SMichael Chan update_wqe->hdr.flags = 655cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 656cf4e6363SMichael Chan 657cf4e6363SMichael Chan /* 5771x requires conn context id to be passed as is */ 658cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &bnx2i_conn->ep->hba->cnic_dev_type)) 659cf4e6363SMichael Chan update_wqe->context_id = bnx2i_conn->ep->ep_cid; 660cf4e6363SMichael Chan else 661cf4e6363SMichael Chan update_wqe->context_id = (bnx2i_conn->ep->ep_cid >> 7); 662cf4e6363SMichael Chan update_wqe->conn_flags = 0; 663cf4e6363SMichael Chan if (conn->hdrdgst_en) 664cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST; 665cf4e6363SMichael Chan if (conn->datadgst_en) 666cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST; 667cf4e6363SMichael Chan if (conn->session->initial_r2t_en) 668cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T; 669cf4e6363SMichael Chan if (conn->session->imm_data_en) 670cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA; 671cf4e6363SMichael Chan 672cf4e6363SMichael Chan update_wqe->max_send_pdu_length = conn->max_xmit_dlength; 673cf4e6363SMichael Chan update_wqe->max_recv_pdu_length = conn->max_recv_dlength; 674cf4e6363SMichael Chan update_wqe->first_burst_length = conn->session->first_burst; 675cf4e6363SMichael Chan update_wqe->max_burst_length = conn->session->max_burst; 676cf4e6363SMichael Chan update_wqe->exp_stat_sn = conn->exp_statsn; 677cf4e6363SMichael Chan update_wqe->max_outstanding_r2ts = conn->session->max_r2t; 678cf4e6363SMichael Chan update_wqe->session_error_recovery_level = conn->session->erl; 679cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, conn, 680cf4e6363SMichael Chan "bnx2i: conn update - MBL 0x%x FBL 0x%x" 681cf4e6363SMichael Chan "MRDSL_I 0x%x MRDSL_T 0x%x \n", 682cf4e6363SMichael Chan update_wqe->max_burst_length, 683cf4e6363SMichael Chan update_wqe->first_burst_length, 684cf4e6363SMichael Chan update_wqe->max_recv_pdu_length, 685cf4e6363SMichael Chan update_wqe->max_send_pdu_length); 686cf4e6363SMichael Chan 687cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) update_wqe; 688cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 689cf4e6363SMichael Chan hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1); 690cf4e6363SMichael Chan } 691cf4e6363SMichael Chan 692cf4e6363SMichael Chan 693cf4e6363SMichael Chan /** 694cf4e6363SMichael Chan * bnx2i_ep_ofld_timer - post iSCSI logout request WQE to hardware 695cf4e6363SMichael Chan * @data: endpoint (transport handle) structure pointer 696cf4e6363SMichael Chan * 697cf4e6363SMichael Chan * routine to handle connection offload/destroy request timeout 698cf4e6363SMichael Chan */ 699cf4e6363SMichael Chan void bnx2i_ep_ofld_timer(unsigned long data) 700cf4e6363SMichael Chan { 701cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) data; 702cf4e6363SMichael Chan 703cf4e6363SMichael Chan if (ep->state == EP_STATE_OFLD_START) { 704cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_OFLD timeout\n"); 705cf4e6363SMichael Chan ep->state = EP_STATE_OFLD_FAILED; 706cf4e6363SMichael Chan } else if (ep->state == EP_STATE_DISCONN_START) { 707cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_DISCON timeout\n"); 708cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_TIMEDOUT; 709cf4e6363SMichael Chan } else if (ep->state == EP_STATE_CLEANUP_START) { 710cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_CLEANUP timeout\n"); 711cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_FAILED; 712cf4e6363SMichael Chan } 713cf4e6363SMichael Chan 714cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 715cf4e6363SMichael Chan } 716cf4e6363SMichael Chan 717cf4e6363SMichael Chan 718cf4e6363SMichael Chan static int bnx2i_power_of2(u32 val) 719cf4e6363SMichael Chan { 720cf4e6363SMichael Chan u32 power = 0; 721cf4e6363SMichael Chan if (val & (val - 1)) 722cf4e6363SMichael Chan return power; 723cf4e6363SMichael Chan val--; 724cf4e6363SMichael Chan while (val) { 725cf4e6363SMichael Chan val = val >> 1; 726cf4e6363SMichael Chan power++; 727cf4e6363SMichael Chan } 728cf4e6363SMichael Chan return power; 729cf4e6363SMichael Chan } 730cf4e6363SMichael Chan 731cf4e6363SMichael Chan 732cf4e6363SMichael Chan /** 733cf4e6363SMichael Chan * bnx2i_send_cmd_cleanup_req - send iscsi cmd context clean-up request 734cf4e6363SMichael Chan * @hba: adapter structure pointer 735cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 736cf4e6363SMichael Chan * a WQE to sent to chip for further processing 737cf4e6363SMichael Chan * 738cf4e6363SMichael Chan * prepares and posts CONN_OFLD_REQ1/2 KWQE 739cf4e6363SMichael Chan */ 740cf4e6363SMichael Chan void bnx2i_send_cmd_cleanup_req(struct bnx2i_hba *hba, struct bnx2i_cmd *cmd) 741cf4e6363SMichael Chan { 742cf4e6363SMichael Chan struct bnx2i_cleanup_request *cmd_cleanup; 743cf4e6363SMichael Chan 744cf4e6363SMichael Chan cmd_cleanup = 745cf4e6363SMichael Chan (struct bnx2i_cleanup_request *)cmd->conn->ep->qp.sq_prod_qe; 746cf4e6363SMichael Chan memset(cmd_cleanup, 0x00, sizeof(struct bnx2i_cleanup_request)); 747cf4e6363SMichael Chan 748cf4e6363SMichael Chan cmd_cleanup->op_code = ISCSI_OPCODE_CLEANUP_REQUEST; 749cf4e6363SMichael Chan cmd_cleanup->itt = cmd->req.itt; 750cf4e6363SMichael Chan cmd_cleanup->cq_index = 0; /* CQ# used for completion, 5771x only */ 751cf4e6363SMichael Chan 752cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(cmd->conn, 1); 753cf4e6363SMichael Chan } 754cf4e6363SMichael Chan 755cf4e6363SMichael Chan 756cf4e6363SMichael Chan /** 757cf4e6363SMichael Chan * bnx2i_send_conn_destroy - initiates iscsi connection teardown process 758cf4e6363SMichael Chan * @hba: adapter structure pointer 7593f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 760cf4e6363SMichael Chan * 761cf4e6363SMichael Chan * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE to initiate 762cf4e6363SMichael Chan * iscsi connection context clean-up process 763cf4e6363SMichael Chan */ 764bee34877SEddie Wai int bnx2i_send_conn_destroy(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 765cf4e6363SMichael Chan { 766cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 767cf4e6363SMichael Chan struct iscsi_kwqe_conn_destroy conn_cleanup; 768bee34877SEddie Wai int rc = -EINVAL; 769cf4e6363SMichael Chan 770cf4e6363SMichael Chan memset(&conn_cleanup, 0x00, sizeof(struct iscsi_kwqe_conn_destroy)); 771cf4e6363SMichael Chan 772cf4e6363SMichael Chan conn_cleanup.hdr.op_code = ISCSI_KWQE_OPCODE_DESTROY_CONN; 773cf4e6363SMichael Chan conn_cleanup.hdr.flags = 774cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 775cf4e6363SMichael Chan /* 5771x requires conn context id to be passed as is */ 776cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 777cf4e6363SMichael Chan conn_cleanup.context_id = ep->ep_cid; 778cf4e6363SMichael Chan else 779cf4e6363SMichael Chan conn_cleanup.context_id = (ep->ep_cid >> 7); 780cf4e6363SMichael Chan 781cf4e6363SMichael Chan conn_cleanup.reserved0 = (u16)ep->ep_iscsi_cid; 782cf4e6363SMichael Chan 783cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &conn_cleanup; 784cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 785bee34877SEddie Wai rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1); 786bee34877SEddie Wai 787bee34877SEddie Wai return rc; 788cf4e6363SMichael Chan } 789cf4e6363SMichael Chan 790cf4e6363SMichael Chan 791cf4e6363SMichael Chan /** 792cf4e6363SMichael Chan * bnx2i_570x_send_conn_ofld_req - initiates iscsi conn context setup process 793cf4e6363SMichael Chan * @hba: adapter structure pointer 7943f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 795cf4e6363SMichael Chan * 796cf4e6363SMichael Chan * 5706/5708/5709 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE 797cf4e6363SMichael Chan */ 798bee34877SEddie Wai static int bnx2i_570x_send_conn_ofld_req(struct bnx2i_hba *hba, 799cf4e6363SMichael Chan struct bnx2i_endpoint *ep) 800cf4e6363SMichael Chan { 801cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 802cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload1 ofld_req1; 803cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload2 ofld_req2; 804cf4e6363SMichael Chan dma_addr_t dma_addr; 805cf4e6363SMichael Chan int num_kwqes = 2; 806cf4e6363SMichael Chan u32 *ptbl; 807bee34877SEddie Wai int rc = -EINVAL; 808cf4e6363SMichael Chan 809cf4e6363SMichael Chan ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1; 810cf4e6363SMichael Chan ofld_req1.hdr.flags = 811cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 812cf4e6363SMichael Chan 813cf4e6363SMichael Chan ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid; 814cf4e6363SMichael Chan 815cf4e6363SMichael Chan dma_addr = ep->qp.sq_pgtbl_phys; 816cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_lo = (u32) dma_addr; 817cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 818cf4e6363SMichael Chan 819cf4e6363SMichael Chan dma_addr = ep->qp.cq_pgtbl_phys; 820cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_lo = (u32) dma_addr; 821cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 822cf4e6363SMichael Chan 823cf4e6363SMichael Chan ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2; 824cf4e6363SMichael Chan ofld_req2.hdr.flags = 825cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 826cf4e6363SMichael Chan 827cf4e6363SMichael Chan dma_addr = ep->qp.rq_pgtbl_phys; 828cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_lo = (u32) dma_addr; 829cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 830cf4e6363SMichael Chan 831cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.sq_pgtbl_virt; 832cf4e6363SMichael Chan 833cf4e6363SMichael Chan ofld_req2.sq_first_pte.hi = *ptbl++; 834cf4e6363SMichael Chan ofld_req2.sq_first_pte.lo = *ptbl; 835cf4e6363SMichael Chan 836cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.cq_pgtbl_virt; 837cf4e6363SMichael Chan ofld_req2.cq_first_pte.hi = *ptbl++; 838cf4e6363SMichael Chan ofld_req2.cq_first_pte.lo = *ptbl; 839cf4e6363SMichael Chan 840cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &ofld_req1; 841cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &ofld_req2; 842cf4e6363SMichael Chan ofld_req2.num_additional_wqes = 0; 843cf4e6363SMichael Chan 844cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 845bee34877SEddie Wai rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 846bee34877SEddie Wai 847bee34877SEddie Wai return rc; 848cf4e6363SMichael Chan } 849cf4e6363SMichael Chan 850cf4e6363SMichael Chan 851cf4e6363SMichael Chan /** 852cf4e6363SMichael Chan * bnx2i_5771x_send_conn_ofld_req - initiates iscsi connection context creation 853cf4e6363SMichael Chan * @hba: adapter structure pointer 8543f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 855cf4e6363SMichael Chan * 856cf4e6363SMichael Chan * 57710 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE 857cf4e6363SMichael Chan */ 858bee34877SEddie Wai static int bnx2i_5771x_send_conn_ofld_req(struct bnx2i_hba *hba, 859cf4e6363SMichael Chan struct bnx2i_endpoint *ep) 860cf4e6363SMichael Chan { 861cf4e6363SMichael Chan struct kwqe *kwqe_arr[5]; 862cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload1 ofld_req1; 863cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload2 ofld_req2; 864cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload3 ofld_req3[1]; 865cf4e6363SMichael Chan dma_addr_t dma_addr; 866cf4e6363SMichael Chan int num_kwqes = 2; 867cf4e6363SMichael Chan u32 *ptbl; 868bee34877SEddie Wai int rc = -EINVAL; 869cf4e6363SMichael Chan 870cf4e6363SMichael Chan ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1; 871cf4e6363SMichael Chan ofld_req1.hdr.flags = 872cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 873cf4e6363SMichael Chan 874cf4e6363SMichael Chan ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid; 875cf4e6363SMichael Chan 876cf4e6363SMichael Chan dma_addr = ep->qp.sq_pgtbl_phys + ISCSI_SQ_DB_SIZE; 877cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_lo = (u32) dma_addr; 878cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 879cf4e6363SMichael Chan 880cf4e6363SMichael Chan dma_addr = ep->qp.cq_pgtbl_phys + ISCSI_CQ_DB_SIZE; 881cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_lo = (u32) dma_addr; 882cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 883cf4e6363SMichael Chan 884cf4e6363SMichael Chan ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2; 885cf4e6363SMichael Chan ofld_req2.hdr.flags = 886cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 887cf4e6363SMichael Chan 888cf4e6363SMichael Chan dma_addr = ep->qp.rq_pgtbl_phys + ISCSI_RQ_DB_SIZE; 889cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_lo = (u32) dma_addr; 890cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 891cf4e6363SMichael Chan 892cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE); 893cf4e6363SMichael Chan ofld_req2.sq_first_pte.hi = *ptbl++; 894cf4e6363SMichael Chan ofld_req2.sq_first_pte.lo = *ptbl; 895cf4e6363SMichael Chan 896cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE); 897cf4e6363SMichael Chan ofld_req2.cq_first_pte.hi = *ptbl++; 898cf4e6363SMichael Chan ofld_req2.cq_first_pte.lo = *ptbl; 899cf4e6363SMichael Chan 900cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &ofld_req1; 901cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &ofld_req2; 902cf4e6363SMichael Chan 903cf4e6363SMichael Chan ofld_req2.num_additional_wqes = 1; 904cf4e6363SMichael Chan memset(ofld_req3, 0x00, sizeof(ofld_req3[0])); 905cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE); 906cf4e6363SMichael Chan ofld_req3[0].qp_first_pte[0].hi = *ptbl++; 907cf4e6363SMichael Chan ofld_req3[0].qp_first_pte[0].lo = *ptbl; 908cf4e6363SMichael Chan 909cf4e6363SMichael Chan kwqe_arr[2] = (struct kwqe *) ofld_req3; 910cf4e6363SMichael Chan /* need if we decide to go with multiple KCQE's per conn */ 911cf4e6363SMichael Chan num_kwqes += 1; 912cf4e6363SMichael Chan 913cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 914bee34877SEddie Wai rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 915bee34877SEddie Wai 916bee34877SEddie Wai return rc; 917cf4e6363SMichael Chan } 918cf4e6363SMichael Chan 919cf4e6363SMichael Chan /** 920cf4e6363SMichael Chan * bnx2i_send_conn_ofld_req - initiates iscsi connection context setup process 921cf4e6363SMichael Chan * 922cf4e6363SMichael Chan * @hba: adapter structure pointer 9233f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 924cf4e6363SMichael Chan * 925cf4e6363SMichael Chan * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE 926cf4e6363SMichael Chan */ 927bee34877SEddie Wai int bnx2i_send_conn_ofld_req(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 928cf4e6363SMichael Chan { 929bee34877SEddie Wai int rc; 930bee34877SEddie Wai 931cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) 932bee34877SEddie Wai rc = bnx2i_5771x_send_conn_ofld_req(hba, ep); 933cf4e6363SMichael Chan else 934bee34877SEddie Wai rc = bnx2i_570x_send_conn_ofld_req(hba, ep); 935bee34877SEddie Wai 936bee34877SEddie Wai return rc; 937cf4e6363SMichael Chan } 938cf4e6363SMichael Chan 939cf4e6363SMichael Chan 940cf4e6363SMichael Chan /** 941cf4e6363SMichael Chan * setup_qp_page_tables - iscsi QP page table setup function 9423f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 943cf4e6363SMichael Chan * 944cf4e6363SMichael Chan * Sets up page tables for SQ/RQ/CQ, 1G/sec (5706/5708/5709) devices requires 945cf4e6363SMichael Chan * 64-bit address in big endian format. Whereas 10G/sec (57710) requires 946cf4e6363SMichael Chan * PT in little endian format 947cf4e6363SMichael Chan */ 948cf4e6363SMichael Chan static void setup_qp_page_tables(struct bnx2i_endpoint *ep) 949cf4e6363SMichael Chan { 950cf4e6363SMichael Chan int num_pages; 951cf4e6363SMichael Chan u32 *ptbl; 952cf4e6363SMichael Chan dma_addr_t page; 953cf4e6363SMichael Chan int cnic_dev_10g; 954cf4e6363SMichael Chan 955cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 956cf4e6363SMichael Chan cnic_dev_10g = 1; 957cf4e6363SMichael Chan else 958cf4e6363SMichael Chan cnic_dev_10g = 0; 959cf4e6363SMichael Chan 960cf4e6363SMichael Chan /* SQ page table */ 961cf4e6363SMichael Chan memset(ep->qp.sq_pgtbl_virt, 0, ep->qp.sq_pgtbl_size); 962be1fefc2SMichael Chan num_pages = ep->qp.sq_mem_size / CNIC_PAGE_SIZE; 963cf4e6363SMichael Chan page = ep->qp.sq_phys; 964cf4e6363SMichael Chan 965cf4e6363SMichael Chan if (cnic_dev_10g) 966cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE); 967cf4e6363SMichael Chan else 968cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.sq_pgtbl_virt; 969cf4e6363SMichael Chan while (num_pages--) { 970cf4e6363SMichael Chan if (cnic_dev_10g) { 971cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 972cf4e6363SMichael Chan *ptbl = (u32) page; 973cf4e6363SMichael Chan ptbl++; 974cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 975cf4e6363SMichael Chan ptbl++; 976be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 977cf4e6363SMichael Chan } else { 978cf4e6363SMichael Chan /* PTE is written in big endian format for 979cf4e6363SMichael Chan * 5706/5708/5709 devices */ 980cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 981cf4e6363SMichael Chan ptbl++; 982cf4e6363SMichael Chan *ptbl = (u32) page; 983cf4e6363SMichael Chan ptbl++; 984be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 985cf4e6363SMichael Chan } 986cf4e6363SMichael Chan } 987cf4e6363SMichael Chan 988cf4e6363SMichael Chan /* RQ page table */ 989cf4e6363SMichael Chan memset(ep->qp.rq_pgtbl_virt, 0, ep->qp.rq_pgtbl_size); 990be1fefc2SMichael Chan num_pages = ep->qp.rq_mem_size / CNIC_PAGE_SIZE; 991cf4e6363SMichael Chan page = ep->qp.rq_phys; 992cf4e6363SMichael Chan 993cf4e6363SMichael Chan if (cnic_dev_10g) 994cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE); 995cf4e6363SMichael Chan else 996cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.rq_pgtbl_virt; 997cf4e6363SMichael Chan while (num_pages--) { 998cf4e6363SMichael Chan if (cnic_dev_10g) { 999cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 1000cf4e6363SMichael Chan *ptbl = (u32) page; 1001cf4e6363SMichael Chan ptbl++; 1002cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 1003cf4e6363SMichael Chan ptbl++; 1004be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 1005cf4e6363SMichael Chan } else { 1006cf4e6363SMichael Chan /* PTE is written in big endian format for 1007cf4e6363SMichael Chan * 5706/5708/5709 devices */ 1008cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 1009cf4e6363SMichael Chan ptbl++; 1010cf4e6363SMichael Chan *ptbl = (u32) page; 1011cf4e6363SMichael Chan ptbl++; 1012be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 1013cf4e6363SMichael Chan } 1014cf4e6363SMichael Chan } 1015cf4e6363SMichael Chan 1016cf4e6363SMichael Chan /* CQ page table */ 1017cf4e6363SMichael Chan memset(ep->qp.cq_pgtbl_virt, 0, ep->qp.cq_pgtbl_size); 1018be1fefc2SMichael Chan num_pages = ep->qp.cq_mem_size / CNIC_PAGE_SIZE; 1019cf4e6363SMichael Chan page = ep->qp.cq_phys; 1020cf4e6363SMichael Chan 1021cf4e6363SMichael Chan if (cnic_dev_10g) 1022cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE); 1023cf4e6363SMichael Chan else 1024cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.cq_pgtbl_virt; 1025cf4e6363SMichael Chan while (num_pages--) { 1026cf4e6363SMichael Chan if (cnic_dev_10g) { 1027cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 1028cf4e6363SMichael Chan *ptbl = (u32) page; 1029cf4e6363SMichael Chan ptbl++; 1030cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 1031cf4e6363SMichael Chan ptbl++; 1032be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 1033cf4e6363SMichael Chan } else { 1034cf4e6363SMichael Chan /* PTE is written in big endian format for 1035cf4e6363SMichael Chan * 5706/5708/5709 devices */ 1036cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 1037cf4e6363SMichael Chan ptbl++; 1038cf4e6363SMichael Chan *ptbl = (u32) page; 1039cf4e6363SMichael Chan ptbl++; 1040be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 1041cf4e6363SMichael Chan } 1042cf4e6363SMichael Chan } 1043cf4e6363SMichael Chan } 1044cf4e6363SMichael Chan 1045cf4e6363SMichael Chan 1046cf4e6363SMichael Chan /** 1047cf4e6363SMichael Chan * bnx2i_alloc_qp_resc - allocates required resources for QP. 1048cf4e6363SMichael Chan * @hba: adapter structure pointer 10493f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 1050cf4e6363SMichael Chan * 1051cf4e6363SMichael Chan * Allocate QP (transport layer for iSCSI connection) resources, DMA'able 1052cf4e6363SMichael Chan * memory for SQ/RQ/CQ and page tables. EP structure elements such 1053cf4e6363SMichael Chan * as producer/consumer indexes/pointers, queue sizes and page table 1054cf4e6363SMichael Chan * contents are setup 1055cf4e6363SMichael Chan */ 1056cf4e6363SMichael Chan int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 1057cf4e6363SMichael Chan { 1058cf4e6363SMichael Chan struct bnx2i_5771x_cq_db *cq_db; 1059cf4e6363SMichael Chan 1060cf4e6363SMichael Chan ep->hba = hba; 1061cf4e6363SMichael Chan ep->conn = NULL; 1062cf4e6363SMichael Chan ep->ep_cid = ep->ep_iscsi_cid = ep->ep_pg_cid = 0; 1063cf4e6363SMichael Chan 1064cf4e6363SMichael Chan /* Allocate page table memory for SQ which is page aligned */ 1065cf4e6363SMichael Chan ep->qp.sq_mem_size = hba->max_sqes * BNX2I_SQ_WQE_SIZE; 1066cf4e6363SMichael Chan ep->qp.sq_mem_size = 1067be1fefc2SMichael Chan (ep->qp.sq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1068cf4e6363SMichael Chan ep->qp.sq_pgtbl_size = 1069be1fefc2SMichael Chan (ep->qp.sq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *); 1070cf4e6363SMichael Chan ep->qp.sq_pgtbl_size = 1071be1fefc2SMichael Chan (ep->qp.sq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1072cf4e6363SMichael Chan 1073cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt = 1074cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size, 1075cf4e6363SMichael Chan &ep->qp.sq_pgtbl_phys, GFP_KERNEL); 1076cf4e6363SMichael Chan if (!ep->qp.sq_pgtbl_virt) { 1077cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc SQ PT mem (%d)\n", 1078cf4e6363SMichael Chan ep->qp.sq_pgtbl_size); 1079cf4e6363SMichael Chan goto mem_alloc_err; 1080cf4e6363SMichael Chan } 1081cf4e6363SMichael Chan 1082cf4e6363SMichael Chan /* Allocate memory area for actual SQ element */ 1083cf4e6363SMichael Chan ep->qp.sq_virt = 1084cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size, 1085cf4e6363SMichael Chan &ep->qp.sq_phys, GFP_KERNEL); 1086cf4e6363SMichael Chan if (!ep->qp.sq_virt) { 1087cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc SQ BD memory %d\n", 1088cf4e6363SMichael Chan ep->qp.sq_mem_size); 1089cf4e6363SMichael Chan goto mem_alloc_err; 1090cf4e6363SMichael Chan } 1091cf4e6363SMichael Chan 1092cf4e6363SMichael Chan memset(ep->qp.sq_virt, 0x00, ep->qp.sq_mem_size); 1093cf4e6363SMichael Chan ep->qp.sq_first_qe = ep->qp.sq_virt; 1094cf4e6363SMichael Chan ep->qp.sq_prod_qe = ep->qp.sq_first_qe; 1095cf4e6363SMichael Chan ep->qp.sq_cons_qe = ep->qp.sq_first_qe; 1096cf4e6363SMichael Chan ep->qp.sq_last_qe = &ep->qp.sq_first_qe[hba->max_sqes - 1]; 1097cf4e6363SMichael Chan ep->qp.sq_prod_idx = 0; 1098cf4e6363SMichael Chan ep->qp.sq_cons_idx = 0; 1099cf4e6363SMichael Chan ep->qp.sqe_left = hba->max_sqes; 1100cf4e6363SMichael Chan 1101cf4e6363SMichael Chan /* Allocate page table memory for CQ which is page aligned */ 1102cf4e6363SMichael Chan ep->qp.cq_mem_size = hba->max_cqes * BNX2I_CQE_SIZE; 1103cf4e6363SMichael Chan ep->qp.cq_mem_size = 1104be1fefc2SMichael Chan (ep->qp.cq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1105cf4e6363SMichael Chan ep->qp.cq_pgtbl_size = 1106be1fefc2SMichael Chan (ep->qp.cq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *); 1107cf4e6363SMichael Chan ep->qp.cq_pgtbl_size = 1108be1fefc2SMichael Chan (ep->qp.cq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1109cf4e6363SMichael Chan 1110cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt = 1111cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size, 1112cf4e6363SMichael Chan &ep->qp.cq_pgtbl_phys, GFP_KERNEL); 1113cf4e6363SMichael Chan if (!ep->qp.cq_pgtbl_virt) { 1114cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc CQ PT memory %d\n", 1115cf4e6363SMichael Chan ep->qp.cq_pgtbl_size); 1116cf4e6363SMichael Chan goto mem_alloc_err; 1117cf4e6363SMichael Chan } 1118cf4e6363SMichael Chan 1119cf4e6363SMichael Chan /* Allocate memory area for actual CQ element */ 1120cf4e6363SMichael Chan ep->qp.cq_virt = 1121cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size, 1122cf4e6363SMichael Chan &ep->qp.cq_phys, GFP_KERNEL); 1123cf4e6363SMichael Chan if (!ep->qp.cq_virt) { 1124cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc CQ BD memory %d\n", 1125cf4e6363SMichael Chan ep->qp.cq_mem_size); 1126cf4e6363SMichael Chan goto mem_alloc_err; 1127cf4e6363SMichael Chan } 1128cf4e6363SMichael Chan memset(ep->qp.cq_virt, 0x00, ep->qp.cq_mem_size); 1129cf4e6363SMichael Chan 1130cf4e6363SMichael Chan ep->qp.cq_first_qe = ep->qp.cq_virt; 1131cf4e6363SMichael Chan ep->qp.cq_prod_qe = ep->qp.cq_first_qe; 1132cf4e6363SMichael Chan ep->qp.cq_cons_qe = ep->qp.cq_first_qe; 1133cf4e6363SMichael Chan ep->qp.cq_last_qe = &ep->qp.cq_first_qe[hba->max_cqes - 1]; 1134cf4e6363SMichael Chan ep->qp.cq_prod_idx = 0; 1135cf4e6363SMichael Chan ep->qp.cq_cons_idx = 0; 1136cf4e6363SMichael Chan ep->qp.cqe_left = hba->max_cqes; 1137cf4e6363SMichael Chan ep->qp.cqe_exp_seq_sn = ISCSI_INITIAL_SN; 1138cf4e6363SMichael Chan ep->qp.cqe_size = hba->max_cqes; 1139cf4e6363SMichael Chan 1140cf4e6363SMichael Chan /* Invalidate all EQ CQE index, req only for 57710 */ 1141cf4e6363SMichael Chan cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt; 1142cf4e6363SMichael Chan memset(cq_db->sqn, 0xFF, sizeof(cq_db->sqn[0]) * BNX2X_MAX_CQS); 1143cf4e6363SMichael Chan 1144cf4e6363SMichael Chan /* Allocate page table memory for RQ which is page aligned */ 1145cf4e6363SMichael Chan ep->qp.rq_mem_size = hba->max_rqes * BNX2I_RQ_WQE_SIZE; 1146cf4e6363SMichael Chan ep->qp.rq_mem_size = 1147be1fefc2SMichael Chan (ep->qp.rq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1148cf4e6363SMichael Chan ep->qp.rq_pgtbl_size = 1149be1fefc2SMichael Chan (ep->qp.rq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *); 1150cf4e6363SMichael Chan ep->qp.rq_pgtbl_size = 1151be1fefc2SMichael Chan (ep->qp.rq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1152cf4e6363SMichael Chan 1153cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt = 1154cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size, 1155cf4e6363SMichael Chan &ep->qp.rq_pgtbl_phys, GFP_KERNEL); 1156cf4e6363SMichael Chan if (!ep->qp.rq_pgtbl_virt) { 1157cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc RQ PT mem %d\n", 1158cf4e6363SMichael Chan ep->qp.rq_pgtbl_size); 1159cf4e6363SMichael Chan goto mem_alloc_err; 1160cf4e6363SMichael Chan } 1161cf4e6363SMichael Chan 1162cf4e6363SMichael Chan /* Allocate memory area for actual RQ element */ 1163cf4e6363SMichael Chan ep->qp.rq_virt = 1164cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size, 1165cf4e6363SMichael Chan &ep->qp.rq_phys, GFP_KERNEL); 1166cf4e6363SMichael Chan if (!ep->qp.rq_virt) { 1167cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc RQ BD memory %d\n", 1168cf4e6363SMichael Chan ep->qp.rq_mem_size); 1169cf4e6363SMichael Chan goto mem_alloc_err; 1170cf4e6363SMichael Chan } 1171cf4e6363SMichael Chan 1172cf4e6363SMichael Chan ep->qp.rq_first_qe = ep->qp.rq_virt; 1173cf4e6363SMichael Chan ep->qp.rq_prod_qe = ep->qp.rq_first_qe; 1174cf4e6363SMichael Chan ep->qp.rq_cons_qe = ep->qp.rq_first_qe; 1175cf4e6363SMichael Chan ep->qp.rq_last_qe = &ep->qp.rq_first_qe[hba->max_rqes - 1]; 1176cf4e6363SMichael Chan ep->qp.rq_prod_idx = 0x8000; 1177cf4e6363SMichael Chan ep->qp.rq_cons_idx = 0; 1178cf4e6363SMichael Chan ep->qp.rqe_left = hba->max_rqes; 1179cf4e6363SMichael Chan 1180cf4e6363SMichael Chan setup_qp_page_tables(ep); 1181cf4e6363SMichael Chan 1182cf4e6363SMichael Chan return 0; 1183cf4e6363SMichael Chan 1184cf4e6363SMichael Chan mem_alloc_err: 1185cf4e6363SMichael Chan bnx2i_free_qp_resc(hba, ep); 1186cf4e6363SMichael Chan return -ENOMEM; 1187cf4e6363SMichael Chan } 1188cf4e6363SMichael Chan 1189cf4e6363SMichael Chan 1190cf4e6363SMichael Chan 1191cf4e6363SMichael Chan /** 1192cf4e6363SMichael Chan * bnx2i_free_qp_resc - free memory resources held by QP 1193cf4e6363SMichael Chan * @hba: adapter structure pointer 11943f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 1195cf4e6363SMichael Chan * 1196cf4e6363SMichael Chan * Free QP resources - SQ/RQ/CQ memory and page tables. 1197cf4e6363SMichael Chan */ 1198cf4e6363SMichael Chan void bnx2i_free_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 1199cf4e6363SMichael Chan { 1200cf4e6363SMichael Chan if (ep->qp.ctx_base) { 1201cf4e6363SMichael Chan iounmap(ep->qp.ctx_base); 1202cf4e6363SMichael Chan ep->qp.ctx_base = NULL; 1203cf4e6363SMichael Chan } 1204cf4e6363SMichael Chan /* Free SQ mem */ 1205cf4e6363SMichael Chan if (ep->qp.sq_pgtbl_virt) { 1206cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size, 1207cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt, ep->qp.sq_pgtbl_phys); 1208cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt = NULL; 1209cf4e6363SMichael Chan ep->qp.sq_pgtbl_phys = 0; 1210cf4e6363SMichael Chan } 1211cf4e6363SMichael Chan if (ep->qp.sq_virt) { 1212cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size, 1213cf4e6363SMichael Chan ep->qp.sq_virt, ep->qp.sq_phys); 1214cf4e6363SMichael Chan ep->qp.sq_virt = NULL; 1215cf4e6363SMichael Chan ep->qp.sq_phys = 0; 1216cf4e6363SMichael Chan } 1217cf4e6363SMichael Chan 1218cf4e6363SMichael Chan /* Free RQ mem */ 1219cf4e6363SMichael Chan if (ep->qp.rq_pgtbl_virt) { 1220cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size, 1221cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt, ep->qp.rq_pgtbl_phys); 1222cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt = NULL; 1223cf4e6363SMichael Chan ep->qp.rq_pgtbl_phys = 0; 1224cf4e6363SMichael Chan } 1225cf4e6363SMichael Chan if (ep->qp.rq_virt) { 1226cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size, 1227cf4e6363SMichael Chan ep->qp.rq_virt, ep->qp.rq_phys); 1228cf4e6363SMichael Chan ep->qp.rq_virt = NULL; 1229cf4e6363SMichael Chan ep->qp.rq_phys = 0; 1230cf4e6363SMichael Chan } 1231cf4e6363SMichael Chan 1232cf4e6363SMichael Chan /* Free CQ mem */ 1233cf4e6363SMichael Chan if (ep->qp.cq_pgtbl_virt) { 1234cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size, 1235cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt, ep->qp.cq_pgtbl_phys); 1236cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt = NULL; 1237cf4e6363SMichael Chan ep->qp.cq_pgtbl_phys = 0; 1238cf4e6363SMichael Chan } 1239cf4e6363SMichael Chan if (ep->qp.cq_virt) { 1240cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size, 1241cf4e6363SMichael Chan ep->qp.cq_virt, ep->qp.cq_phys); 1242cf4e6363SMichael Chan ep->qp.cq_virt = NULL; 1243cf4e6363SMichael Chan ep->qp.cq_phys = 0; 1244cf4e6363SMichael Chan } 1245cf4e6363SMichael Chan } 1246cf4e6363SMichael Chan 1247cf4e6363SMichael Chan 1248cf4e6363SMichael Chan /** 1249cf4e6363SMichael Chan * bnx2i_send_fw_iscsi_init_msg - initiates initial handshake with iscsi f/w 1250cf4e6363SMichael Chan * @hba: adapter structure pointer 1251cf4e6363SMichael Chan * 1252cf4e6363SMichael Chan * Send down iscsi_init KWQEs which initiates the initial handshake with the f/w 1253cf4e6363SMichael Chan * This results in iSCSi support validation and on-chip context manager 1254cf4e6363SMichael Chan * initialization. Firmware completes this handshake with a CQE carrying 1255cf4e6363SMichael Chan * the result of iscsi support validation. Parameter carried by 1256cf4e6363SMichael Chan * iscsi init request determines the number of offloaded connection and 1257cf4e6363SMichael Chan * tolerance level for iscsi protocol violation this hba/chip can support 1258cf4e6363SMichael Chan */ 1259cf4e6363SMichael Chan int bnx2i_send_fw_iscsi_init_msg(struct bnx2i_hba *hba) 1260cf4e6363SMichael Chan { 1261cf4e6363SMichael Chan struct kwqe *kwqe_arr[3]; 1262cf4e6363SMichael Chan struct iscsi_kwqe_init1 iscsi_init; 1263cf4e6363SMichael Chan struct iscsi_kwqe_init2 iscsi_init2; 1264cf4e6363SMichael Chan int rc = 0; 1265cf4e6363SMichael Chan u64 mask64; 1266cf4e6363SMichael Chan 1267d6532207SEddie Wai memset(&iscsi_init, 0x00, sizeof(struct iscsi_kwqe_init1)); 1268d6532207SEddie Wai memset(&iscsi_init2, 0x00, sizeof(struct iscsi_kwqe_init2)); 1269d6532207SEddie Wai 1270cf4e6363SMichael Chan bnx2i_adjust_qp_size(hba); 1271cf4e6363SMichael Chan 1272cf4e6363SMichael Chan iscsi_init.flags = 1273be1fefc2SMichael Chan (CNIC_PAGE_BITS - 8) << ISCSI_KWQE_INIT1_PAGE_SIZE_SHIFT; 1274cf4e6363SMichael Chan if (en_tcp_dack) 1275cf4e6363SMichael Chan iscsi_init.flags |= ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE; 1276cf4e6363SMichael Chan iscsi_init.reserved0 = 0; 1277cf4e6363SMichael Chan iscsi_init.num_cqs = 1; 1278cf4e6363SMichael Chan iscsi_init.hdr.op_code = ISCSI_KWQE_OPCODE_INIT1; 1279cf4e6363SMichael Chan iscsi_init.hdr.flags = 1280cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 1281cf4e6363SMichael Chan 1282cf4e6363SMichael Chan iscsi_init.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma; 1283cf4e6363SMichael Chan iscsi_init.dummy_buffer_addr_hi = 1284cf4e6363SMichael Chan (u32) ((u64) hba->dummy_buf_dma >> 32); 1285cf4e6363SMichael Chan 12867287c63eSEddie Wai hba->num_ccell = hba->max_sqes >> 1; 1287cf4e6363SMichael Chan hba->ctx_ccell_tasks = 1288cf4e6363SMichael Chan ((hba->num_ccell & 0xFFFF) | (hba->max_sqes << 16)); 1289cf4e6363SMichael Chan iscsi_init.num_ccells_per_conn = hba->num_ccell; 1290cf4e6363SMichael Chan iscsi_init.num_tasks_per_conn = hba->max_sqes; 1291be1fefc2SMichael Chan iscsi_init.sq_wqes_per_page = CNIC_PAGE_SIZE / BNX2I_SQ_WQE_SIZE; 1292cf4e6363SMichael Chan iscsi_init.sq_num_wqes = hba->max_sqes; 1293cf4e6363SMichael Chan iscsi_init.cq_log_wqes_per_page = 1294be1fefc2SMichael Chan (u8) bnx2i_power_of2(CNIC_PAGE_SIZE / BNX2I_CQE_SIZE); 1295cf4e6363SMichael Chan iscsi_init.cq_num_wqes = hba->max_cqes; 1296cf4e6363SMichael Chan iscsi_init.cq_num_pages = (hba->max_cqes * BNX2I_CQE_SIZE + 1297be1fefc2SMichael Chan (CNIC_PAGE_SIZE - 1)) / CNIC_PAGE_SIZE; 1298cf4e6363SMichael Chan iscsi_init.sq_num_pages = (hba->max_sqes * BNX2I_SQ_WQE_SIZE + 1299be1fefc2SMichael Chan (CNIC_PAGE_SIZE - 1)) / CNIC_PAGE_SIZE; 1300cf4e6363SMichael Chan iscsi_init.rq_buffer_size = BNX2I_RQ_WQE_SIZE; 1301cf4e6363SMichael Chan iscsi_init.rq_num_wqes = hba->max_rqes; 1302cf4e6363SMichael Chan 1303cf4e6363SMichael Chan 1304cf4e6363SMichael Chan iscsi_init2.hdr.op_code = ISCSI_KWQE_OPCODE_INIT2; 1305cf4e6363SMichael Chan iscsi_init2.hdr.flags = 1306cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 1307cf4e6363SMichael Chan iscsi_init2.max_cq_sqn = hba->max_cqes * 2 + 1; 1308cf4e6363SMichael Chan mask64 = 0x0ULL; 1309cf4e6363SMichael Chan mask64 |= ( 1310cf4e6363SMichael Chan /* CISCO MDS */ 1311cf4e6363SMichael Chan (1UL << 1312cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV) | 1313cf4e6363SMichael Chan /* HP MSA1510i */ 1314cf4e6363SMichael Chan (1UL << 1315cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN) | 1316cf4e6363SMichael Chan /* EMC */ 1317cf4e6363SMichael Chan (1ULL << ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN)); 131870fc872cSEddie Wai if (error_mask1) { 1319cf4e6363SMichael Chan iscsi_init2.error_bit_map[0] = error_mask1; 1320d4a0d607STomas Henzl mask64 ^= (u32)(mask64); 132170fc872cSEddie Wai mask64 |= error_mask1; 132270fc872cSEddie Wai } else 1323cf4e6363SMichael Chan iscsi_init2.error_bit_map[0] = (u32) mask64; 1324cf4e6363SMichael Chan 132570fc872cSEddie Wai if (error_mask2) { 1326cf4e6363SMichael Chan iscsi_init2.error_bit_map[1] = error_mask2; 132770fc872cSEddie Wai mask64 &= 0xffffffff; 132870fc872cSEddie Wai mask64 |= ((u64)error_mask2 << 32); 132970fc872cSEddie Wai } else 1330cf4e6363SMichael Chan iscsi_init2.error_bit_map[1] = (u32) (mask64 >> 32); 1331cf4e6363SMichael Chan 1332cf4e6363SMichael Chan iscsi_error_mask = mask64; 1333cf4e6363SMichael Chan 1334cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &iscsi_init; 1335cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &iscsi_init2; 1336cf4e6363SMichael Chan 1337cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 1338cf4e6363SMichael Chan rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 2); 1339cf4e6363SMichael Chan return rc; 1340cf4e6363SMichael Chan } 1341cf4e6363SMichael Chan 1342cf4e6363SMichael Chan 1343cf4e6363SMichael Chan /** 1344cf4e6363SMichael Chan * bnx2i_process_scsi_cmd_resp - this function handles scsi cmd completion. 1345b5cf6b63SEddie Wai * @session: iscsi session 1346b5cf6b63SEddie Wai * @bnx2i_conn: bnx2i connection 1347cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1348cf4e6363SMichael Chan * 1349cf4e6363SMichael Chan * process SCSI CMD Response CQE & complete the request to SCSI-ML 1350cf4e6363SMichael Chan */ 1351b5cf6b63SEddie Wai int bnx2i_process_scsi_cmd_resp(struct iscsi_session *session, 1352cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1353cf4e6363SMichael Chan struct cqe *cqe) 1354cf4e6363SMichael Chan { 1355cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 13562e499d3cSBarak Witkowski struct bnx2i_hba *hba = bnx2i_conn->hba; 1357cf4e6363SMichael Chan struct bnx2i_cmd_response *resp_cqe; 1358cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 1359cf4e6363SMichael Chan struct iscsi_task *task; 136012352183SNicholas Bellinger struct iscsi_scsi_rsp *hdr; 1361cf4e6363SMichael Chan u32 datalen = 0; 1362cf4e6363SMichael Chan 1363cf4e6363SMichael Chan resp_cqe = (struct bnx2i_cmd_response *)cqe; 1364b5cf6b63SEddie Wai spin_lock_bh(&session->lock); 1365cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1366cf4e6363SMichael Chan resp_cqe->itt & ISCSI_CMD_RESPONSE_INDEX); 1367cf4e6363SMichael Chan if (!task) 1368cf4e6363SMichael Chan goto fail; 1369cf4e6363SMichael Chan 1370cf4e6363SMichael Chan bnx2i_cmd = task->dd_data; 1371cf4e6363SMichael Chan 1372cf4e6363SMichael Chan if (bnx2i_cmd->req.op_attr & ISCSI_CMD_REQUEST_READ) { 1373cf4e6363SMichael Chan conn->datain_pdus_cnt += 13742e499d3cSBarak Witkowski resp_cqe->task_stat.read_stat.num_data_ins; 1375cf4e6363SMichael Chan conn->rxdata_octets += 1376cf4e6363SMichael Chan bnx2i_cmd->req.total_data_transfer_length; 13772e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_pdus, 13782e499d3cSBarak Witkowski resp_cqe->task_stat.read_stat.num_data_ins); 13792e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_bytes, 13802e499d3cSBarak Witkowski bnx2i_cmd->req.total_data_transfer_length); 1381cf4e6363SMichael Chan } else { 1382cf4e6363SMichael Chan conn->dataout_pdus_cnt += 13832e499d3cSBarak Witkowski resp_cqe->task_stat.write_stat.num_data_outs; 1384cf4e6363SMichael Chan conn->r2t_pdus_cnt += 13852e499d3cSBarak Witkowski resp_cqe->task_stat.write_stat.num_r2ts; 1386cf4e6363SMichael Chan conn->txdata_octets += 1387cf4e6363SMichael Chan bnx2i_cmd->req.total_data_transfer_length; 13882e499d3cSBarak Witkowski ADD_STATS_64(hba, tx_pdus, 13892e499d3cSBarak Witkowski resp_cqe->task_stat.write_stat.num_data_outs); 13902e499d3cSBarak Witkowski ADD_STATS_64(hba, tx_bytes, 13912e499d3cSBarak Witkowski bnx2i_cmd->req.total_data_transfer_length); 13922e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_pdus, 13932e499d3cSBarak Witkowski resp_cqe->task_stat.write_stat.num_r2ts); 1394cf4e6363SMichael Chan } 1395cf4e6363SMichael Chan bnx2i_iscsi_unmap_sg_list(bnx2i_cmd); 1396cf4e6363SMichael Chan 139712352183SNicholas Bellinger hdr = (struct iscsi_scsi_rsp *)task->hdr; 1398cf4e6363SMichael Chan resp_cqe = (struct bnx2i_cmd_response *)cqe; 1399cf4e6363SMichael Chan hdr->opcode = resp_cqe->op_code; 1400cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(resp_cqe->max_cmd_sn); 1401cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(resp_cqe->exp_cmd_sn); 1402cf4e6363SMichael Chan hdr->response = resp_cqe->response; 1403cf4e6363SMichael Chan hdr->cmd_status = resp_cqe->status; 1404cf4e6363SMichael Chan hdr->flags = resp_cqe->response_flags; 1405cf4e6363SMichael Chan hdr->residual_count = cpu_to_be32(resp_cqe->residual_count); 1406cf4e6363SMichael Chan 1407cf4e6363SMichael Chan if (resp_cqe->op_code == ISCSI_OP_SCSI_DATA_IN) 1408cf4e6363SMichael Chan goto done; 1409cf4e6363SMichael Chan 1410cf4e6363SMichael Chan if (resp_cqe->status == SAM_STAT_CHECK_CONDITION) { 1411cf4e6363SMichael Chan datalen = resp_cqe->data_length; 1412cf4e6363SMichael Chan if (datalen < 2) 1413cf4e6363SMichael Chan goto done; 1414cf4e6363SMichael Chan 1415cf4e6363SMichael Chan if (datalen > BNX2I_RQ_WQE_SIZE) { 1416cf4e6363SMichael Chan iscsi_conn_printk(KERN_ERR, conn, 1417cf4e6363SMichael Chan "sense data len %d > RQ sz\n", 1418cf4e6363SMichael Chan datalen); 1419cf4e6363SMichael Chan datalen = BNX2I_RQ_WQE_SIZE; 1420cf4e6363SMichael Chan } else if (datalen > ISCSI_DEF_MAX_RECV_SEG_LEN) { 1421cf4e6363SMichael Chan iscsi_conn_printk(KERN_ERR, conn, 1422cf4e6363SMichael Chan "sense data len %d > conn data\n", 1423cf4e6363SMichael Chan datalen); 1424cf4e6363SMichael Chan datalen = ISCSI_DEF_MAX_RECV_SEG_LEN; 1425cf4e6363SMichael Chan } 1426cf4e6363SMichael Chan 1427cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_cmd->conn, conn->data, datalen); 1428cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_cmd->conn, 1); 1429cf4e6363SMichael Chan } 1430cf4e6363SMichael Chan 1431cf4e6363SMichael Chan done: 1432cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, 1433cf4e6363SMichael Chan conn->data, datalen); 1434cf4e6363SMichael Chan fail: 1435b5cf6b63SEddie Wai spin_unlock_bh(&session->lock); 1436cf4e6363SMichael Chan return 0; 1437cf4e6363SMichael Chan } 1438cf4e6363SMichael Chan 1439cf4e6363SMichael Chan 1440cf4e6363SMichael Chan /** 1441cf4e6363SMichael Chan * bnx2i_process_login_resp - this function handles iscsi login response 1442cf4e6363SMichael Chan * @session: iscsi session pointer 1443cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1444cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1445cf4e6363SMichael Chan * 1446cf4e6363SMichael Chan * process Login Response CQE & complete it to open-iscsi user daemon 1447cf4e6363SMichael Chan */ 1448cf4e6363SMichael Chan static int bnx2i_process_login_resp(struct iscsi_session *session, 1449cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1450cf4e6363SMichael Chan struct cqe *cqe) 1451cf4e6363SMichael Chan { 1452cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1453cf4e6363SMichael Chan struct iscsi_task *task; 1454cf4e6363SMichael Chan struct bnx2i_login_response *login; 1455cf4e6363SMichael Chan struct iscsi_login_rsp *resp_hdr; 1456cf4e6363SMichael Chan int pld_len; 1457cf4e6363SMichael Chan int pad_len; 1458cf4e6363SMichael Chan 1459cf4e6363SMichael Chan login = (struct bnx2i_login_response *) cqe; 1460cf4e6363SMichael Chan spin_lock(&session->lock); 1461cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1462cf4e6363SMichael Chan login->itt & ISCSI_LOGIN_RESPONSE_INDEX); 1463cf4e6363SMichael Chan if (!task) 1464cf4e6363SMichael Chan goto done; 1465cf4e6363SMichael Chan 1466cf4e6363SMichael Chan resp_hdr = (struct iscsi_login_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1467cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1468cf4e6363SMichael Chan resp_hdr->opcode = login->op_code; 1469cf4e6363SMichael Chan resp_hdr->flags = login->response_flags; 1470cf4e6363SMichael Chan resp_hdr->max_version = login->version_max; 1471a419aef8SJoe Perches resp_hdr->active_version = login->version_active; 1472cf4e6363SMichael Chan resp_hdr->hlength = 0; 1473cf4e6363SMichael Chan 1474cf4e6363SMichael Chan hton24(resp_hdr->dlength, login->data_length); 1475cf4e6363SMichael Chan memcpy(resp_hdr->isid, &login->isid_lo, 6); 1476cf4e6363SMichael Chan resp_hdr->tsih = cpu_to_be16(login->tsih); 1477cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1478cf4e6363SMichael Chan resp_hdr->statsn = cpu_to_be32(login->stat_sn); 1479cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(login->exp_cmd_sn); 1480cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(login->max_cmd_sn); 1481cf4e6363SMichael Chan resp_hdr->status_class = login->status_class; 1482cf4e6363SMichael Chan resp_hdr->status_detail = login->status_detail; 1483cf4e6363SMichael Chan pld_len = login->data_length; 1484cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr = 1485cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_buf + pld_len; 1486cf4e6363SMichael Chan 1487cf4e6363SMichael Chan pad_len = 0; 1488cf4e6363SMichael Chan if (pld_len & 0x3) 1489cf4e6363SMichael Chan pad_len = 4 - (pld_len % 4); 1490cf4e6363SMichael Chan 1491cf4e6363SMichael Chan if (pad_len) { 1492cf4e6363SMichael Chan int i = 0; 1493cf4e6363SMichael Chan for (i = 0; i < pad_len; i++) { 1494cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0; 1495cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr++; 1496cf4e6363SMichael Chan } 1497cf4e6363SMichael Chan } 1498cf4e6363SMichael Chan 1499cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, 1500cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_buf, 1501cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr - bnx2i_conn->gen_pdu.resp_buf); 1502cf4e6363SMichael Chan done: 1503cf4e6363SMichael Chan spin_unlock(&session->lock); 1504cf4e6363SMichael Chan return 0; 1505cf4e6363SMichael Chan } 1506cf4e6363SMichael Chan 150709813ba5SEddie Wai 150809813ba5SEddie Wai /** 150909813ba5SEddie Wai * bnx2i_process_text_resp - this function handles iscsi text response 151009813ba5SEddie Wai * @session: iscsi session pointer 151109813ba5SEddie Wai * @bnx2i_conn: iscsi connection pointer 151209813ba5SEddie Wai * @cqe: pointer to newly DMA'ed CQE entry for processing 151309813ba5SEddie Wai * 151409813ba5SEddie Wai * process iSCSI Text Response CQE& complete it to open-iscsi user daemon 151509813ba5SEddie Wai */ 151609813ba5SEddie Wai static int bnx2i_process_text_resp(struct iscsi_session *session, 151709813ba5SEddie Wai struct bnx2i_conn *bnx2i_conn, 151809813ba5SEddie Wai struct cqe *cqe) 151909813ba5SEddie Wai { 152009813ba5SEddie Wai struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 152109813ba5SEddie Wai struct iscsi_task *task; 152209813ba5SEddie Wai struct bnx2i_text_response *text; 152309813ba5SEddie Wai struct iscsi_text_rsp *resp_hdr; 152409813ba5SEddie Wai int pld_len; 152509813ba5SEddie Wai int pad_len; 152609813ba5SEddie Wai 152709813ba5SEddie Wai text = (struct bnx2i_text_response *) cqe; 152809813ba5SEddie Wai spin_lock(&session->lock); 152909813ba5SEddie Wai task = iscsi_itt_to_task(conn, text->itt & ISCSI_LOGIN_RESPONSE_INDEX); 153009813ba5SEddie Wai if (!task) 153109813ba5SEddie Wai goto done; 153209813ba5SEddie Wai 153309813ba5SEddie Wai resp_hdr = (struct iscsi_text_rsp *)&bnx2i_conn->gen_pdu.resp_hdr; 153409813ba5SEddie Wai memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 153509813ba5SEddie Wai resp_hdr->opcode = text->op_code; 153609813ba5SEddie Wai resp_hdr->flags = text->response_flags; 153709813ba5SEddie Wai resp_hdr->hlength = 0; 153809813ba5SEddie Wai 153909813ba5SEddie Wai hton24(resp_hdr->dlength, text->data_length); 154009813ba5SEddie Wai resp_hdr->itt = task->hdr->itt; 154109813ba5SEddie Wai resp_hdr->ttt = cpu_to_be32(text->ttt); 154209813ba5SEddie Wai resp_hdr->statsn = task->hdr->exp_statsn; 154309813ba5SEddie Wai resp_hdr->exp_cmdsn = cpu_to_be32(text->exp_cmd_sn); 154409813ba5SEddie Wai resp_hdr->max_cmdsn = cpu_to_be32(text->max_cmd_sn); 154509813ba5SEddie Wai pld_len = text->data_length; 154609813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_wr_ptr = bnx2i_conn->gen_pdu.resp_buf + 154709813ba5SEddie Wai pld_len; 154809813ba5SEddie Wai pad_len = 0; 154909813ba5SEddie Wai if (pld_len & 0x3) 155009813ba5SEddie Wai pad_len = 4 - (pld_len % 4); 155109813ba5SEddie Wai 155209813ba5SEddie Wai if (pad_len) { 155309813ba5SEddie Wai int i = 0; 155409813ba5SEddie Wai for (i = 0; i < pad_len; i++) { 155509813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0; 155609813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_wr_ptr++; 155709813ba5SEddie Wai } 155809813ba5SEddie Wai } 155909813ba5SEddie Wai __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, 156009813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_buf, 156109813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_wr_ptr - 156209813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_buf); 156309813ba5SEddie Wai done: 156409813ba5SEddie Wai spin_unlock(&session->lock); 156509813ba5SEddie Wai return 0; 156609813ba5SEddie Wai } 156709813ba5SEddie Wai 156809813ba5SEddie Wai 1569cf4e6363SMichael Chan /** 1570cf4e6363SMichael Chan * bnx2i_process_tmf_resp - this function handles iscsi TMF response 1571cf4e6363SMichael Chan * @session: iscsi session pointer 1572cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1573cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1574cf4e6363SMichael Chan * 1575cf4e6363SMichael Chan * process iSCSI TMF Response CQE and wake up the driver eh thread. 1576cf4e6363SMichael Chan */ 1577cf4e6363SMichael Chan static int bnx2i_process_tmf_resp(struct iscsi_session *session, 1578cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1579cf4e6363SMichael Chan struct cqe *cqe) 1580cf4e6363SMichael Chan { 1581cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1582cf4e6363SMichael Chan struct iscsi_task *task; 1583cf4e6363SMichael Chan struct bnx2i_tmf_response *tmf_cqe; 1584cf4e6363SMichael Chan struct iscsi_tm_rsp *resp_hdr; 1585cf4e6363SMichael Chan 1586cf4e6363SMichael Chan tmf_cqe = (struct bnx2i_tmf_response *)cqe; 1587cf4e6363SMichael Chan spin_lock(&session->lock); 1588cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1589cf4e6363SMichael Chan tmf_cqe->itt & ISCSI_TMF_RESPONSE_INDEX); 1590cf4e6363SMichael Chan if (!task) 1591cf4e6363SMichael Chan goto done; 1592cf4e6363SMichael Chan 1593cf4e6363SMichael Chan resp_hdr = (struct iscsi_tm_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1594cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1595cf4e6363SMichael Chan resp_hdr->opcode = tmf_cqe->op_code; 1596cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(tmf_cqe->max_cmd_sn); 1597cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(tmf_cqe->exp_cmd_sn); 1598cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1599cf4e6363SMichael Chan resp_hdr->response = tmf_cqe->response; 1600cf4e6363SMichael Chan 1601cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0); 1602cf4e6363SMichael Chan done: 1603cf4e6363SMichael Chan spin_unlock(&session->lock); 1604cf4e6363SMichael Chan return 0; 1605cf4e6363SMichael Chan } 1606cf4e6363SMichael Chan 1607cf4e6363SMichael Chan /** 1608cf4e6363SMichael Chan * bnx2i_process_logout_resp - this function handles iscsi logout response 1609cf4e6363SMichael Chan * @session: iscsi session pointer 1610cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1611cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1612cf4e6363SMichael Chan * 1613cf4e6363SMichael Chan * process iSCSI Logout Response CQE & make function call to 1614cf4e6363SMichael Chan * notify the user daemon. 1615cf4e6363SMichael Chan */ 1616cf4e6363SMichael Chan static int bnx2i_process_logout_resp(struct iscsi_session *session, 1617cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1618cf4e6363SMichael Chan struct cqe *cqe) 1619cf4e6363SMichael Chan { 1620cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1621cf4e6363SMichael Chan struct iscsi_task *task; 1622cf4e6363SMichael Chan struct bnx2i_logout_response *logout; 1623cf4e6363SMichael Chan struct iscsi_logout_rsp *resp_hdr; 1624cf4e6363SMichael Chan 1625cf4e6363SMichael Chan logout = (struct bnx2i_logout_response *) cqe; 1626cf4e6363SMichael Chan spin_lock(&session->lock); 1627cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1628cf4e6363SMichael Chan logout->itt & ISCSI_LOGOUT_RESPONSE_INDEX); 1629cf4e6363SMichael Chan if (!task) 1630cf4e6363SMichael Chan goto done; 1631cf4e6363SMichael Chan 1632cf4e6363SMichael Chan resp_hdr = (struct iscsi_logout_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1633cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1634cf4e6363SMichael Chan resp_hdr->opcode = logout->op_code; 1635cf4e6363SMichael Chan resp_hdr->flags = logout->response; 1636cf4e6363SMichael Chan resp_hdr->hlength = 0; 1637cf4e6363SMichael Chan 1638cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1639cf4e6363SMichael Chan resp_hdr->statsn = task->hdr->exp_statsn; 1640cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(logout->exp_cmd_sn); 1641cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(logout->max_cmd_sn); 1642cf4e6363SMichael Chan 1643cf4e6363SMichael Chan resp_hdr->t2wait = cpu_to_be32(logout->time_to_wait); 1644cf4e6363SMichael Chan resp_hdr->t2retain = cpu_to_be32(logout->time_to_retain); 1645cf4e6363SMichael Chan 1646cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0); 16472eefb20dSEddie Wai 16482eefb20dSEddie Wai bnx2i_conn->ep->state = EP_STATE_LOGOUT_RESP_RCVD; 1649cf4e6363SMichael Chan done: 1650cf4e6363SMichael Chan spin_unlock(&session->lock); 1651cf4e6363SMichael Chan return 0; 1652cf4e6363SMichael Chan } 1653cf4e6363SMichael Chan 1654cf4e6363SMichael Chan /** 1655cf4e6363SMichael Chan * bnx2i_process_nopin_local_cmpl - this function handles iscsi nopin CQE 1656cf4e6363SMichael Chan * @session: iscsi session pointer 1657cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1658cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1659cf4e6363SMichael Chan * 1660cf4e6363SMichael Chan * process iSCSI NOPIN local completion CQE, frees IIT and command structures 1661cf4e6363SMichael Chan */ 1662cf4e6363SMichael Chan static void bnx2i_process_nopin_local_cmpl(struct iscsi_session *session, 1663cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1664cf4e6363SMichael Chan struct cqe *cqe) 1665cf4e6363SMichael Chan { 1666cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1667cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nop_in; 1668cf4e6363SMichael Chan struct iscsi_task *task; 1669cf4e6363SMichael Chan 1670cf4e6363SMichael Chan nop_in = (struct bnx2i_nop_in_msg *)cqe; 1671cf4e6363SMichael Chan spin_lock(&session->lock); 1672cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1673cf4e6363SMichael Chan nop_in->itt & ISCSI_NOP_IN_MSG_INDEX); 1674cf4e6363SMichael Chan if (task) 16758eea2f55SEddie Wai __iscsi_put_task(task); 1676cf4e6363SMichael Chan spin_unlock(&session->lock); 1677cf4e6363SMichael Chan } 1678cf4e6363SMichael Chan 1679cf4e6363SMichael Chan /** 1680cf4e6363SMichael Chan * bnx2i_unsol_pdu_adjust_rq - makes adjustments to RQ after unsol pdu is recvd 1681cf4e6363SMichael Chan * @conn: iscsi connection 1682cf4e6363SMichael Chan * 1683cf4e6363SMichael Chan * Firmware advances RQ producer index for every unsolicited PDU even if 1684cf4e6363SMichael Chan * payload data length is '0'. This function makes corresponding 1685cf4e6363SMichael Chan * adjustments on the driver side to match this f/w behavior 1686cf4e6363SMichael Chan */ 1687cf4e6363SMichael Chan static void bnx2i_unsol_pdu_adjust_rq(struct bnx2i_conn *bnx2i_conn) 1688cf4e6363SMichael Chan { 1689cf4e6363SMichael Chan char dummy_rq_data[2]; 1690cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_conn, dummy_rq_data, 1); 1691cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_conn, 1); 1692cf4e6363SMichael Chan } 1693cf4e6363SMichael Chan 1694cf4e6363SMichael Chan 1695cf4e6363SMichael Chan /** 1696cf4e6363SMichael Chan * bnx2i_process_nopin_mesg - this function handles iscsi nopin CQE 1697cf4e6363SMichael Chan * @session: iscsi session pointer 1698cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1699cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1700cf4e6363SMichael Chan * 1701cf4e6363SMichael Chan * process iSCSI target's proactive iSCSI NOPIN request 1702cf4e6363SMichael Chan */ 1703cf4e6363SMichael Chan static int bnx2i_process_nopin_mesg(struct iscsi_session *session, 1704cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1705cf4e6363SMichael Chan struct cqe *cqe) 1706cf4e6363SMichael Chan { 1707cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1708cf4e6363SMichael Chan struct iscsi_task *task; 1709cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nop_in; 1710cf4e6363SMichael Chan struct iscsi_nopin *hdr; 1711cf4e6363SMichael Chan int tgt_async_nop = 0; 1712cf4e6363SMichael Chan 1713cf4e6363SMichael Chan nop_in = (struct bnx2i_nop_in_msg *)cqe; 1714cf4e6363SMichael Chan 1715cf4e6363SMichael Chan spin_lock(&session->lock); 1716cf4e6363SMichael Chan hdr = (struct iscsi_nopin *)&bnx2i_conn->gen_pdu.resp_hdr; 1717cf4e6363SMichael Chan memset(hdr, 0, sizeof(struct iscsi_hdr)); 1718cf4e6363SMichael Chan hdr->opcode = nop_in->op_code; 1719cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(nop_in->max_cmd_sn); 1720cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(nop_in->exp_cmd_sn); 1721cf4e6363SMichael Chan hdr->ttt = cpu_to_be32(nop_in->ttt); 1722cf4e6363SMichael Chan 17235ee32576SEddie Wai if (nop_in->itt == (u16) RESERVED_ITT) { 1724cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1725cf4e6363SMichael Chan hdr->itt = RESERVED_ITT; 1726cf4e6363SMichael Chan tgt_async_nop = 1; 1727cf4e6363SMichael Chan goto done; 1728cf4e6363SMichael Chan } 1729cf4e6363SMichael Chan 1730cf4e6363SMichael Chan /* this is a response to one of our nop-outs */ 17315ee32576SEddie Wai task = iscsi_itt_to_task(conn, 17325ee32576SEddie Wai (itt_t) (nop_in->itt & ISCSI_NOP_IN_MSG_INDEX)); 1733cf4e6363SMichael Chan if (task) { 1734cf4e6363SMichael Chan hdr->flags = ISCSI_FLAG_CMD_FINAL; 1735cf4e6363SMichael Chan hdr->itt = task->hdr->itt; 1736cf4e6363SMichael Chan hdr->ttt = cpu_to_be32(nop_in->ttt); 1737516f43a2SAndy Grover memcpy(&hdr->lun, nop_in->lun, 8); 1738cf4e6363SMichael Chan } 1739cf4e6363SMichael Chan done: 1740cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 1741cf4e6363SMichael Chan spin_unlock(&session->lock); 1742cf4e6363SMichael Chan 1743cf4e6363SMichael Chan return tgt_async_nop; 1744cf4e6363SMichael Chan } 1745cf4e6363SMichael Chan 1746cf4e6363SMichael Chan 1747cf4e6363SMichael Chan /** 1748cf4e6363SMichael Chan * bnx2i_process_async_mesg - this function handles iscsi async message 1749cf4e6363SMichael Chan * @session: iscsi session pointer 1750cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1751cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1752cf4e6363SMichael Chan * 1753cf4e6363SMichael Chan * process iSCSI ASYNC Message 1754cf4e6363SMichael Chan */ 1755cf4e6363SMichael Chan static void bnx2i_process_async_mesg(struct iscsi_session *session, 1756cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1757cf4e6363SMichael Chan struct cqe *cqe) 1758cf4e6363SMichael Chan { 1759cf4e6363SMichael Chan struct bnx2i_async_msg *async_cqe; 1760cf4e6363SMichael Chan struct iscsi_async *resp_hdr; 1761cf4e6363SMichael Chan u8 async_event; 1762cf4e6363SMichael Chan 1763cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1764cf4e6363SMichael Chan 1765cf4e6363SMichael Chan async_cqe = (struct bnx2i_async_msg *)cqe; 1766cf4e6363SMichael Chan async_event = async_cqe->async_event; 1767cf4e6363SMichael Chan 1768cf4e6363SMichael Chan if (async_event == ISCSI_ASYNC_MSG_SCSI_EVENT) { 1769cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data, 1770cf4e6363SMichael Chan "async: scsi events not supported\n"); 1771cf4e6363SMichael Chan return; 1772cf4e6363SMichael Chan } 1773cf4e6363SMichael Chan 1774cf4e6363SMichael Chan spin_lock(&session->lock); 1775cf4e6363SMichael Chan resp_hdr = (struct iscsi_async *) &bnx2i_conn->gen_pdu.resp_hdr; 1776cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1777cf4e6363SMichael Chan resp_hdr->opcode = async_cqe->op_code; 1778cf4e6363SMichael Chan resp_hdr->flags = 0x80; 1779cf4e6363SMichael Chan 1780516f43a2SAndy Grover memcpy(&resp_hdr->lun, async_cqe->lun, 8); 1781cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(async_cqe->exp_cmd_sn); 1782cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(async_cqe->max_cmd_sn); 1783cf4e6363SMichael Chan 1784cf4e6363SMichael Chan resp_hdr->async_event = async_cqe->async_event; 1785cf4e6363SMichael Chan resp_hdr->async_vcode = async_cqe->async_vcode; 1786cf4e6363SMichael Chan 1787cf4e6363SMichael Chan resp_hdr->param1 = cpu_to_be16(async_cqe->param1); 1788cf4e6363SMichael Chan resp_hdr->param2 = cpu_to_be16(async_cqe->param2); 1789cf4e6363SMichael Chan resp_hdr->param3 = cpu_to_be16(async_cqe->param3); 1790cf4e6363SMichael Chan 1791cf4e6363SMichael Chan __iscsi_complete_pdu(bnx2i_conn->cls_conn->dd_data, 1792cf4e6363SMichael Chan (struct iscsi_hdr *)resp_hdr, NULL, 0); 1793cf4e6363SMichael Chan spin_unlock(&session->lock); 1794cf4e6363SMichael Chan } 1795cf4e6363SMichael Chan 1796cf4e6363SMichael Chan 1797cf4e6363SMichael Chan /** 1798cf4e6363SMichael Chan * bnx2i_process_reject_mesg - process iscsi reject pdu 1799cf4e6363SMichael Chan * @session: iscsi session pointer 1800cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1801cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1802cf4e6363SMichael Chan * 1803cf4e6363SMichael Chan * process iSCSI REJECT message 1804cf4e6363SMichael Chan */ 1805cf4e6363SMichael Chan static void bnx2i_process_reject_mesg(struct iscsi_session *session, 1806cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1807cf4e6363SMichael Chan struct cqe *cqe) 1808cf4e6363SMichael Chan { 1809cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1810cf4e6363SMichael Chan struct bnx2i_reject_msg *reject; 1811cf4e6363SMichael Chan struct iscsi_reject *hdr; 1812cf4e6363SMichael Chan 1813cf4e6363SMichael Chan reject = (struct bnx2i_reject_msg *) cqe; 1814cf4e6363SMichael Chan if (reject->data_length) { 1815cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_conn, conn->data, reject->data_length); 1816cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_conn, 1); 1817cf4e6363SMichael Chan } else 1818cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1819cf4e6363SMichael Chan 1820cf4e6363SMichael Chan spin_lock(&session->lock); 1821cf4e6363SMichael Chan hdr = (struct iscsi_reject *) &bnx2i_conn->gen_pdu.resp_hdr; 1822cf4e6363SMichael Chan memset(hdr, 0, sizeof(struct iscsi_hdr)); 1823cf4e6363SMichael Chan hdr->opcode = reject->op_code; 1824cf4e6363SMichael Chan hdr->reason = reject->reason; 1825cf4e6363SMichael Chan hton24(hdr->dlength, reject->data_length); 1826cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(reject->max_cmd_sn); 1827cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(reject->exp_cmd_sn); 1828cf4e6363SMichael Chan hdr->ffffffff = cpu_to_be32(RESERVED_ITT); 1829cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, conn->data, 1830cf4e6363SMichael Chan reject->data_length); 1831cf4e6363SMichael Chan spin_unlock(&session->lock); 1832cf4e6363SMichael Chan } 1833cf4e6363SMichael Chan 1834cf4e6363SMichael Chan /** 1835cf4e6363SMichael Chan * bnx2i_process_cmd_cleanup_resp - process scsi command clean-up completion 1836cf4e6363SMichael Chan * @session: iscsi session pointer 1837cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1838cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1839cf4e6363SMichael Chan * 1840cf4e6363SMichael Chan * process command cleanup response CQE during conn shutdown or error recovery 1841cf4e6363SMichael Chan */ 1842cf4e6363SMichael Chan static void bnx2i_process_cmd_cleanup_resp(struct iscsi_session *session, 1843cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1844cf4e6363SMichael Chan struct cqe *cqe) 1845cf4e6363SMichael Chan { 1846cf4e6363SMichael Chan struct bnx2i_cleanup_response *cmd_clean_rsp; 1847cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1848cf4e6363SMichael Chan struct iscsi_task *task; 1849cf4e6363SMichael Chan 1850cf4e6363SMichael Chan cmd_clean_rsp = (struct bnx2i_cleanup_response *)cqe; 1851cf4e6363SMichael Chan spin_lock(&session->lock); 1852cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1853cf4e6363SMichael Chan cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX); 1854cf4e6363SMichael Chan if (!task) 1855cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: cmd clean ITT %x not active\n", 1856cf4e6363SMichael Chan cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX); 1857cf4e6363SMichael Chan spin_unlock(&session->lock); 1858cf4e6363SMichael Chan complete(&bnx2i_conn->cmd_cleanup_cmpl); 1859cf4e6363SMichael Chan } 1860cf4e6363SMichael Chan 1861cf4e6363SMichael Chan 1862b5cf6b63SEddie Wai /** 1863b5cf6b63SEddie Wai * bnx2i_percpu_io_thread - thread per cpu for ios 1864b5cf6b63SEddie Wai * 1865b5cf6b63SEddie Wai * @arg: ptr to bnx2i_percpu_info structure 1866b5cf6b63SEddie Wai */ 1867b5cf6b63SEddie Wai int bnx2i_percpu_io_thread(void *arg) 1868b5cf6b63SEddie Wai { 1869b5cf6b63SEddie Wai struct bnx2i_percpu_s *p = arg; 1870b5cf6b63SEddie Wai struct bnx2i_work *work, *tmp; 1871b5cf6b63SEddie Wai LIST_HEAD(work_list); 1872b5cf6b63SEddie Wai 1873b5cf6b63SEddie Wai set_user_nice(current, -20); 1874b5cf6b63SEddie Wai 1875b5cf6b63SEddie Wai while (!kthread_should_stop()) { 1876b5cf6b63SEddie Wai spin_lock_bh(&p->p_work_lock); 1877b5cf6b63SEddie Wai while (!list_empty(&p->work_list)) { 1878b5cf6b63SEddie Wai list_splice_init(&p->work_list, &work_list); 1879b5cf6b63SEddie Wai spin_unlock_bh(&p->p_work_lock); 1880b5cf6b63SEddie Wai 1881b5cf6b63SEddie Wai list_for_each_entry_safe(work, tmp, &work_list, list) { 1882b5cf6b63SEddie Wai list_del_init(&work->list); 1883b5cf6b63SEddie Wai /* work allocated in the bh, freed here */ 1884b5cf6b63SEddie Wai bnx2i_process_scsi_cmd_resp(work->session, 1885b5cf6b63SEddie Wai work->bnx2i_conn, 1886b5cf6b63SEddie Wai &work->cqe); 1887b5cf6b63SEddie Wai atomic_dec(&work->bnx2i_conn->work_cnt); 1888b5cf6b63SEddie Wai kfree(work); 1889b5cf6b63SEddie Wai } 1890b5cf6b63SEddie Wai spin_lock_bh(&p->p_work_lock); 1891b5cf6b63SEddie Wai } 1892b5cf6b63SEddie Wai set_current_state(TASK_INTERRUPTIBLE); 1893b5cf6b63SEddie Wai spin_unlock_bh(&p->p_work_lock); 1894b5cf6b63SEddie Wai schedule(); 1895b5cf6b63SEddie Wai } 1896b5cf6b63SEddie Wai __set_current_state(TASK_RUNNING); 1897b5cf6b63SEddie Wai 1898b5cf6b63SEddie Wai return 0; 1899b5cf6b63SEddie Wai } 1900b5cf6b63SEddie Wai 1901b5cf6b63SEddie Wai 1902b5cf6b63SEddie Wai /** 1903b5cf6b63SEddie Wai * bnx2i_queue_scsi_cmd_resp - queue cmd completion to the percpu thread 1904b5cf6b63SEddie Wai * @bnx2i_conn: bnx2i connection 1905b5cf6b63SEddie Wai * 1906b5cf6b63SEddie Wai * this function is called by generic KCQ handler to queue all pending cmd 1907b5cf6b63SEddie Wai * completion CQEs 1908b5cf6b63SEddie Wai * 1909b5cf6b63SEddie Wai * The implementation is to queue the cmd response based on the 1910b5cf6b63SEddie Wai * last recorded command for the given connection. The 1911b5cf6b63SEddie Wai * cpu_id gets recorded upon task_xmit. No out-of-order completion! 1912b5cf6b63SEddie Wai */ 1913b5cf6b63SEddie Wai static int bnx2i_queue_scsi_cmd_resp(struct iscsi_session *session, 1914b5cf6b63SEddie Wai struct bnx2i_conn *bnx2i_conn, 1915b5cf6b63SEddie Wai struct bnx2i_nop_in_msg *cqe) 1916b5cf6b63SEddie Wai { 1917b5cf6b63SEddie Wai struct bnx2i_work *bnx2i_work = NULL; 1918b5cf6b63SEddie Wai struct bnx2i_percpu_s *p = NULL; 1919b5cf6b63SEddie Wai struct iscsi_task *task; 1920b5cf6b63SEddie Wai struct scsi_cmnd *sc; 1921b5cf6b63SEddie Wai int rc = 0; 19220d83ab65SEddie Wai int cpu; 1923b5cf6b63SEddie Wai 1924b5cf6b63SEddie Wai spin_lock(&session->lock); 1925b5cf6b63SEddie Wai task = iscsi_itt_to_task(bnx2i_conn->cls_conn->dd_data, 1926b5cf6b63SEddie Wai cqe->itt & ISCSI_CMD_RESPONSE_INDEX); 1927a878185cSEddie Wai if (!task || !task->sc) { 1928b5cf6b63SEddie Wai spin_unlock(&session->lock); 1929b5cf6b63SEddie Wai return -EINVAL; 1930b5cf6b63SEddie Wai } 1931b5cf6b63SEddie Wai sc = task->sc; 1932b5cf6b63SEddie Wai 19330d83ab65SEddie Wai if (!blk_rq_cpu_valid(sc->request)) 19340d83ab65SEddie Wai cpu = smp_processor_id(); 19350d83ab65SEddie Wai else 19360d83ab65SEddie Wai cpu = sc->request->cpu; 19370d83ab65SEddie Wai 1938a878185cSEddie Wai spin_unlock(&session->lock); 1939a878185cSEddie Wai 19400d83ab65SEddie Wai p = &per_cpu(bnx2i_percpu, cpu); 1941b5cf6b63SEddie Wai spin_lock(&p->p_work_lock); 1942b5cf6b63SEddie Wai if (unlikely(!p->iothread)) { 1943b5cf6b63SEddie Wai rc = -EINVAL; 1944b5cf6b63SEddie Wai goto err; 1945b5cf6b63SEddie Wai } 1946b5cf6b63SEddie Wai /* Alloc and copy to the cqe */ 1947b5cf6b63SEddie Wai bnx2i_work = kzalloc(sizeof(struct bnx2i_work), GFP_ATOMIC); 1948b5cf6b63SEddie Wai if (bnx2i_work) { 1949b5cf6b63SEddie Wai INIT_LIST_HEAD(&bnx2i_work->list); 1950b5cf6b63SEddie Wai bnx2i_work->session = session; 1951b5cf6b63SEddie Wai bnx2i_work->bnx2i_conn = bnx2i_conn; 1952b5cf6b63SEddie Wai memcpy(&bnx2i_work->cqe, cqe, sizeof(struct cqe)); 1953b5cf6b63SEddie Wai list_add_tail(&bnx2i_work->list, &p->work_list); 1954b5cf6b63SEddie Wai atomic_inc(&bnx2i_conn->work_cnt); 1955b5cf6b63SEddie Wai wake_up_process(p->iothread); 1956b5cf6b63SEddie Wai spin_unlock(&p->p_work_lock); 1957b5cf6b63SEddie Wai goto done; 1958b5cf6b63SEddie Wai } else 1959b5cf6b63SEddie Wai rc = -ENOMEM; 1960b5cf6b63SEddie Wai err: 1961b5cf6b63SEddie Wai spin_unlock(&p->p_work_lock); 1962b5cf6b63SEddie Wai bnx2i_process_scsi_cmd_resp(session, bnx2i_conn, (struct cqe *)cqe); 1963b5cf6b63SEddie Wai done: 1964b5cf6b63SEddie Wai return rc; 1965b5cf6b63SEddie Wai } 1966b5cf6b63SEddie Wai 1967cf4e6363SMichael Chan 1968cf4e6363SMichael Chan /** 1969cf4e6363SMichael Chan * bnx2i_process_new_cqes - process newly DMA'ed CQE's 1970b5cf6b63SEddie Wai * @bnx2i_conn: bnx2i connection 1971cf4e6363SMichael Chan * 1972cf4e6363SMichael Chan * this function is called by generic KCQ handler to process all pending CQE's 1973cf4e6363SMichael Chan */ 1974b5cf6b63SEddie Wai static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn) 1975cf4e6363SMichael Chan { 1976cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1977cf4e6363SMichael Chan struct iscsi_session *session = conn->session; 19782e499d3cSBarak Witkowski struct bnx2i_hba *hba = bnx2i_conn->hba; 1979b5cf6b63SEddie Wai struct qp_info *qp; 1980cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nopin; 1981cf4e6363SMichael Chan int tgt_async_msg; 1982b5cf6b63SEddie Wai int cqe_cnt = 0; 1983cf4e6363SMichael Chan 1984b5cf6b63SEddie Wai if (bnx2i_conn->ep == NULL) 1985b5cf6b63SEddie Wai return 0; 1986b5cf6b63SEddie Wai 1987b5cf6b63SEddie Wai qp = &bnx2i_conn->ep->qp; 1988b5cf6b63SEddie Wai 1989b5cf6b63SEddie Wai if (!qp->cq_virt) { 1990b5cf6b63SEddie Wai printk(KERN_ALERT "bnx2i (%s): cq resr freed in bh execution!", 19912e499d3cSBarak Witkowski hba->netdev->name); 1992b5cf6b63SEddie Wai goto out; 1993b5cf6b63SEddie Wai } 1994cf4e6363SMichael Chan while (1) { 1995cf4e6363SMichael Chan nopin = (struct bnx2i_nop_in_msg *) qp->cq_cons_qe; 1996cf4e6363SMichael Chan if (nopin->cq_req_sn != qp->cqe_exp_seq_sn) 1997cf4e6363SMichael Chan break; 1998cf4e6363SMichael Chan 19995ee32576SEddie Wai if (unlikely(test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx))) { 20005ee32576SEddie Wai if (nopin->op_code == ISCSI_OP_NOOP_IN && 20015ee32576SEddie Wai nopin->itt == (u16) RESERVED_ITT) { 20025ee32576SEddie Wai printk(KERN_ALERT "bnx2i: Unsolicited " 20035ee32576SEddie Wai "NOP-In detected for suspended " 20045ee32576SEddie Wai "connection dev=%s!\n", 20052e499d3cSBarak Witkowski hba->netdev->name); 20065ee32576SEddie Wai bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 20075ee32576SEddie Wai goto cqe_out; 20085ee32576SEddie Wai } 2009cf4e6363SMichael Chan break; 20105ee32576SEddie Wai } 2011cf4e6363SMichael Chan tgt_async_msg = 0; 2012cf4e6363SMichael Chan 2013cf4e6363SMichael Chan switch (nopin->op_code) { 2014cf4e6363SMichael Chan case ISCSI_OP_SCSI_CMD_RSP: 2015cf4e6363SMichael Chan case ISCSI_OP_SCSI_DATA_IN: 2016b5cf6b63SEddie Wai /* Run the kthread engine only for data cmds 2017b5cf6b63SEddie Wai All other cmds will be completed in this bh! */ 2018b5cf6b63SEddie Wai bnx2i_queue_scsi_cmd_resp(session, bnx2i_conn, nopin); 20192e499d3cSBarak Witkowski goto done; 2020cf4e6363SMichael Chan case ISCSI_OP_LOGIN_RSP: 2021cf4e6363SMichael Chan bnx2i_process_login_resp(session, bnx2i_conn, 2022cf4e6363SMichael Chan qp->cq_cons_qe); 2023cf4e6363SMichael Chan break; 2024cf4e6363SMichael Chan case ISCSI_OP_SCSI_TMFUNC_RSP: 2025cf4e6363SMichael Chan bnx2i_process_tmf_resp(session, bnx2i_conn, 2026cf4e6363SMichael Chan qp->cq_cons_qe); 2027cf4e6363SMichael Chan break; 202809813ba5SEddie Wai case ISCSI_OP_TEXT_RSP: 202909813ba5SEddie Wai bnx2i_process_text_resp(session, bnx2i_conn, 203009813ba5SEddie Wai qp->cq_cons_qe); 203109813ba5SEddie Wai break; 2032cf4e6363SMichael Chan case ISCSI_OP_LOGOUT_RSP: 2033cf4e6363SMichael Chan bnx2i_process_logout_resp(session, bnx2i_conn, 2034cf4e6363SMichael Chan qp->cq_cons_qe); 2035cf4e6363SMichael Chan break; 2036cf4e6363SMichael Chan case ISCSI_OP_NOOP_IN: 2037cf4e6363SMichael Chan if (bnx2i_process_nopin_mesg(session, bnx2i_conn, 2038cf4e6363SMichael Chan qp->cq_cons_qe)) 2039cf4e6363SMichael Chan tgt_async_msg = 1; 2040cf4e6363SMichael Chan break; 2041cf4e6363SMichael Chan case ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION: 2042cf4e6363SMichael Chan bnx2i_process_nopin_local_cmpl(session, bnx2i_conn, 2043cf4e6363SMichael Chan qp->cq_cons_qe); 2044cf4e6363SMichael Chan break; 2045cf4e6363SMichael Chan case ISCSI_OP_ASYNC_EVENT: 2046cf4e6363SMichael Chan bnx2i_process_async_mesg(session, bnx2i_conn, 2047cf4e6363SMichael Chan qp->cq_cons_qe); 2048cf4e6363SMichael Chan tgt_async_msg = 1; 2049cf4e6363SMichael Chan break; 2050cf4e6363SMichael Chan case ISCSI_OP_REJECT: 2051cf4e6363SMichael Chan bnx2i_process_reject_mesg(session, bnx2i_conn, 2052cf4e6363SMichael Chan qp->cq_cons_qe); 2053cf4e6363SMichael Chan break; 2054cf4e6363SMichael Chan case ISCSI_OPCODE_CLEANUP_RESPONSE: 2055cf4e6363SMichael Chan bnx2i_process_cmd_cleanup_resp(session, bnx2i_conn, 2056cf4e6363SMichael Chan qp->cq_cons_qe); 2057cf4e6363SMichael Chan break; 2058cf4e6363SMichael Chan default: 2059cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n", 2060cf4e6363SMichael Chan nopin->op_code); 2061cf4e6363SMichael Chan } 20622e499d3cSBarak Witkowski 20632e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_pdus, 1); 20642e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_bytes, nopin->data_length); 20652e499d3cSBarak Witkowski done: 2066b5cf6b63SEddie Wai if (!tgt_async_msg) { 2067b5cf6b63SEddie Wai if (!atomic_read(&bnx2i_conn->ep->num_active_cmds)) 2068b5cf6b63SEddie Wai printk(KERN_ALERT "bnx2i (%s): no active cmd! " 2069b5cf6b63SEddie Wai "op 0x%x\n", 20702e499d3cSBarak Witkowski hba->netdev->name, 2071b5cf6b63SEddie Wai nopin->op_code); 2072b5cf6b63SEddie Wai else 2073b5cf6b63SEddie Wai atomic_dec(&bnx2i_conn->ep->num_active_cmds); 2074b5cf6b63SEddie Wai } 20755ee32576SEddie Wai cqe_out: 2076cf4e6363SMichael Chan /* clear out in production version only, till beta keep opcode 2077cf4e6363SMichael Chan * field intact, will be helpful in debugging (context dump) 2078cf4e6363SMichael Chan * nopin->op_code = 0; 2079cf4e6363SMichael Chan */ 2080b5cf6b63SEddie Wai cqe_cnt++; 2081cf4e6363SMichael Chan qp->cqe_exp_seq_sn++; 2082cf4e6363SMichael Chan if (qp->cqe_exp_seq_sn == (qp->cqe_size * 2 + 1)) 2083cf4e6363SMichael Chan qp->cqe_exp_seq_sn = ISCSI_INITIAL_SN; 2084cf4e6363SMichael Chan 2085cf4e6363SMichael Chan if (qp->cq_cons_qe == qp->cq_last_qe) { 2086cf4e6363SMichael Chan qp->cq_cons_qe = qp->cq_first_qe; 2087cf4e6363SMichael Chan qp->cq_cons_idx = 0; 2088cf4e6363SMichael Chan } else { 2089cf4e6363SMichael Chan qp->cq_cons_qe++; 2090cf4e6363SMichael Chan qp->cq_cons_idx++; 2091cf4e6363SMichael Chan } 2092cf4e6363SMichael Chan } 2093b5cf6b63SEddie Wai out: 2094b5cf6b63SEddie Wai return cqe_cnt; 2095cf4e6363SMichael Chan } 2096cf4e6363SMichael Chan 2097cf4e6363SMichael Chan /** 2098cf4e6363SMichael Chan * bnx2i_fastpath_notification - process global event queue (KCQ) 2099cf4e6363SMichael Chan * @hba: adapter structure pointer 2100cf4e6363SMichael Chan * @new_cqe_kcqe: pointer to newly DMA'ed KCQE entry 2101cf4e6363SMichael Chan * 2102cf4e6363SMichael Chan * Fast path event notification handler, KCQ entry carries context id 2103cf4e6363SMichael Chan * of the connection that has 1 or more pending CQ entries 2104cf4e6363SMichael Chan */ 2105cf4e6363SMichael Chan static void bnx2i_fastpath_notification(struct bnx2i_hba *hba, 2106cf4e6363SMichael Chan struct iscsi_kcqe *new_cqe_kcqe) 2107cf4e6363SMichael Chan { 21089ae58e14SEddie Wai struct bnx2i_conn *bnx2i_conn; 2109cf4e6363SMichael Chan u32 iscsi_cid; 2110b5cf6b63SEddie Wai int nxt_idx; 2111cf4e6363SMichael Chan 2112cf4e6363SMichael Chan iscsi_cid = new_cqe_kcqe->iscsi_conn_id; 21139ae58e14SEddie Wai bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 2114cf4e6363SMichael Chan 21159ae58e14SEddie Wai if (!bnx2i_conn) { 2116cf4e6363SMichael Chan printk(KERN_ALERT "cid #%x not valid\n", iscsi_cid); 2117cf4e6363SMichael Chan return; 2118cf4e6363SMichael Chan } 21199ae58e14SEddie Wai if (!bnx2i_conn->ep) { 2120cf4e6363SMichael Chan printk(KERN_ALERT "cid #%x - ep not bound\n", iscsi_cid); 2121cf4e6363SMichael Chan return; 2122cf4e6363SMichael Chan } 2123b5cf6b63SEddie Wai 21249ae58e14SEddie Wai bnx2i_process_new_cqes(bnx2i_conn); 2125b5cf6b63SEddie Wai nxt_idx = bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, 2126b5cf6b63SEddie Wai CNIC_ARM_CQE_FP); 2127b5cf6b63SEddie Wai if (nxt_idx && nxt_idx == bnx2i_process_new_cqes(bnx2i_conn)) 21289ae58e14SEddie Wai bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, CNIC_ARM_CQE_FP); 2129cf4e6363SMichael Chan } 2130cf4e6363SMichael Chan 2131cf4e6363SMichael Chan 2132cf4e6363SMichael Chan /** 2133cf4e6363SMichael Chan * bnx2i_process_update_conn_cmpl - process iscsi conn update completion KCQE 2134cf4e6363SMichael Chan * @hba: adapter structure pointer 2135cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 2136cf4e6363SMichael Chan * 2137cf4e6363SMichael Chan * CONN_UPDATE completion handler, this completes iSCSI connection FFP migration 2138cf4e6363SMichael Chan */ 2139cf4e6363SMichael Chan static void bnx2i_process_update_conn_cmpl(struct bnx2i_hba *hba, 2140cf4e6363SMichael Chan struct iscsi_kcqe *update_kcqe) 2141cf4e6363SMichael Chan { 2142cf4e6363SMichael Chan struct bnx2i_conn *conn; 2143cf4e6363SMichael Chan u32 iscsi_cid; 2144cf4e6363SMichael Chan 2145cf4e6363SMichael Chan iscsi_cid = update_kcqe->iscsi_conn_id; 2146cf4e6363SMichael Chan conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 2147cf4e6363SMichael Chan 2148cf4e6363SMichael Chan if (!conn) { 2149cf4e6363SMichael Chan printk(KERN_ALERT "conn_update: cid %x not valid\n", iscsi_cid); 2150cf4e6363SMichael Chan return; 2151cf4e6363SMichael Chan } 2152cf4e6363SMichael Chan if (!conn->ep) { 2153cf4e6363SMichael Chan printk(KERN_ALERT "cid %x does not have ep bound\n", iscsi_cid); 2154cf4e6363SMichael Chan return; 2155cf4e6363SMichael Chan } 2156cf4e6363SMichael Chan 2157cf4e6363SMichael Chan if (update_kcqe->completion_status) { 2158cf4e6363SMichael Chan printk(KERN_ALERT "request failed cid %x\n", iscsi_cid); 2159cf4e6363SMichael Chan conn->ep->state = EP_STATE_ULP_UPDATE_FAILED; 2160cf4e6363SMichael Chan } else 2161cf4e6363SMichael Chan conn->ep->state = EP_STATE_ULP_UPDATE_COMPL; 2162cf4e6363SMichael Chan 2163cf4e6363SMichael Chan wake_up_interruptible(&conn->ep->ofld_wait); 2164cf4e6363SMichael Chan } 2165cf4e6363SMichael Chan 2166cf4e6363SMichael Chan 2167cf4e6363SMichael Chan /** 2168cf4e6363SMichael Chan * bnx2i_recovery_que_add_conn - add connection to recovery queue 2169cf4e6363SMichael Chan * @hba: adapter structure pointer 2170cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection 2171cf4e6363SMichael Chan * 2172cf4e6363SMichael Chan * Add connection to recovery queue and schedule adapter eh worker 2173cf4e6363SMichael Chan */ 2174cf4e6363SMichael Chan static void bnx2i_recovery_que_add_conn(struct bnx2i_hba *hba, 2175cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn) 2176cf4e6363SMichael Chan { 2177cf4e6363SMichael Chan iscsi_conn_failure(bnx2i_conn->cls_conn->dd_data, 2178cf4e6363SMichael Chan ISCSI_ERR_CONN_FAILED); 2179cf4e6363SMichael Chan } 2180cf4e6363SMichael Chan 2181cf4e6363SMichael Chan 2182cf4e6363SMichael Chan /** 2183cf4e6363SMichael Chan * bnx2i_process_tcp_error - process error notification on a given connection 2184cf4e6363SMichael Chan * 2185cf4e6363SMichael Chan * @hba: adapter structure pointer 2186cf4e6363SMichael Chan * @tcp_err: tcp error kcqe pointer 2187cf4e6363SMichael Chan * 2188cf4e6363SMichael Chan * handles tcp level error notifications from FW. 2189cf4e6363SMichael Chan */ 2190cf4e6363SMichael Chan static void bnx2i_process_tcp_error(struct bnx2i_hba *hba, 2191cf4e6363SMichael Chan struct iscsi_kcqe *tcp_err) 2192cf4e6363SMichael Chan { 2193cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn; 2194cf4e6363SMichael Chan u32 iscsi_cid; 2195cf4e6363SMichael Chan 2196cf4e6363SMichael Chan iscsi_cid = tcp_err->iscsi_conn_id; 2197cf4e6363SMichael Chan bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 2198cf4e6363SMichael Chan 2199cf4e6363SMichael Chan if (!bnx2i_conn) { 2200cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid); 2201cf4e6363SMichael Chan return; 2202cf4e6363SMichael Chan } 2203cf4e6363SMichael Chan 2204cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x had TCP errors, error code 0x%x\n", 2205cf4e6363SMichael Chan iscsi_cid, tcp_err->completion_status); 2206cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn); 2207cf4e6363SMichael Chan } 2208cf4e6363SMichael Chan 2209cf4e6363SMichael Chan 2210cf4e6363SMichael Chan /** 2211cf4e6363SMichael Chan * bnx2i_process_iscsi_error - process error notification on a given connection 2212cf4e6363SMichael Chan * @hba: adapter structure pointer 2213cf4e6363SMichael Chan * @iscsi_err: iscsi error kcqe pointer 2214cf4e6363SMichael Chan * 2215cf4e6363SMichael Chan * handles iscsi error notifications from the FW. Firmware based in initial 2216cf4e6363SMichael Chan * handshake classifies iscsi protocol / TCP rfc violation into either 2217cf4e6363SMichael Chan * warning or error indications. If indication is of "Error" type, driver 2218cf4e6363SMichael Chan * will initiate session recovery for that connection/session. For 2219cf4e6363SMichael Chan * "Warning" type indication, driver will put out a system log message 2220cf4e6363SMichael Chan * (there will be only one message for each type for the life of the 2221cf4e6363SMichael Chan * session, this is to avoid un-necessarily overloading the system) 2222cf4e6363SMichael Chan */ 2223cf4e6363SMichael Chan static void bnx2i_process_iscsi_error(struct bnx2i_hba *hba, 2224cf4e6363SMichael Chan struct iscsi_kcqe *iscsi_err) 2225cf4e6363SMichael Chan { 2226cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn; 2227cf4e6363SMichael Chan u32 iscsi_cid; 2228cf4e6363SMichael Chan char warn_notice[] = "iscsi_warning"; 2229cf4e6363SMichael Chan char error_notice[] = "iscsi_error"; 2230cf4e6363SMichael Chan char additional_notice[64]; 2231cf4e6363SMichael Chan char *message; 2232cf4e6363SMichael Chan int need_recovery; 2233cf4e6363SMichael Chan u64 err_mask64; 2234cf4e6363SMichael Chan 2235cf4e6363SMichael Chan iscsi_cid = iscsi_err->iscsi_conn_id; 2236cf4e6363SMichael Chan bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 2237cf4e6363SMichael Chan if (!bnx2i_conn) { 2238cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid); 2239cf4e6363SMichael Chan return; 2240cf4e6363SMichael Chan } 2241cf4e6363SMichael Chan 2242cf4e6363SMichael Chan err_mask64 = (0x1ULL << iscsi_err->completion_status); 2243cf4e6363SMichael Chan 2244cf4e6363SMichael Chan if (err_mask64 & iscsi_error_mask) { 2245cf4e6363SMichael Chan need_recovery = 0; 2246cf4e6363SMichael Chan message = warn_notice; 2247cf4e6363SMichael Chan } else { 2248cf4e6363SMichael Chan need_recovery = 1; 2249cf4e6363SMichael Chan message = error_notice; 2250cf4e6363SMichael Chan } 2251cf4e6363SMichael Chan 2252cf4e6363SMichael Chan switch (iscsi_err->completion_status) { 2253cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR: 2254cf4e6363SMichael Chan strcpy(additional_notice, "hdr digest err"); 2255cf4e6363SMichael Chan break; 2256cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR: 2257cf4e6363SMichael Chan strcpy(additional_notice, "data digest err"); 2258cf4e6363SMichael Chan break; 2259cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE: 2260cf4e6363SMichael Chan strcpy(additional_notice, "wrong opcode rcvd"); 2261cf4e6363SMichael Chan break; 2262cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN: 2263cf4e6363SMichael Chan strcpy(additional_notice, "AHS len > 0 rcvd"); 2264cf4e6363SMichael Chan break; 2265cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT: 2266cf4e6363SMichael Chan strcpy(additional_notice, "invalid ITT rcvd"); 2267cf4e6363SMichael Chan break; 2268cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN: 2269cf4e6363SMichael Chan strcpy(additional_notice, "wrong StatSN rcvd"); 2270cf4e6363SMichael Chan break; 2271cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN: 2272cf4e6363SMichael Chan strcpy(additional_notice, "wrong DataSN rcvd"); 2273cf4e6363SMichael Chan break; 2274cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T: 2275cf4e6363SMichael Chan strcpy(additional_notice, "pend R2T violation"); 2276cf4e6363SMichael Chan break; 2277cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0: 2278cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, UO"); 2279cf4e6363SMichael Chan break; 2280cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1: 2281cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U1"); 2282cf4e6363SMichael Chan break; 2283cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2: 2284cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U2"); 2285cf4e6363SMichael Chan break; 2286cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3: 2287cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U3"); 2288cf4e6363SMichael Chan break; 2289cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4: 2290cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U4"); 2291cf4e6363SMichael Chan break; 2292cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5: 2293cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U5"); 2294cf4e6363SMichael Chan break; 2295cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6: 2296cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U6"); 2297cf4e6363SMichael Chan break; 2298cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN: 2299cf4e6363SMichael Chan strcpy(additional_notice, "invalid resi len"); 2300cf4e6363SMichael Chan break; 2301cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN: 2302cf4e6363SMichael Chan strcpy(additional_notice, "MRDSL violation"); 2303cf4e6363SMichael Chan break; 2304cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO: 2305cf4e6363SMichael Chan strcpy(additional_notice, "F-bit not set"); 2306cf4e6363SMichael Chan break; 2307cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV: 2308cf4e6363SMichael Chan strcpy(additional_notice, "invalid TTT"); 2309cf4e6363SMichael Chan break; 2310cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN: 2311cf4e6363SMichael Chan strcpy(additional_notice, "invalid DataSN"); 2312cf4e6363SMichael Chan break; 2313cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN: 2314cf4e6363SMichael Chan strcpy(additional_notice, "burst len violation"); 2315cf4e6363SMichael Chan break; 2316cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF: 2317cf4e6363SMichael Chan strcpy(additional_notice, "buf offset violation"); 2318cf4e6363SMichael Chan break; 2319cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN: 2320cf4e6363SMichael Chan strcpy(additional_notice, "invalid LUN field"); 2321cf4e6363SMichael Chan break; 2322cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN: 2323cf4e6363SMichael Chan strcpy(additional_notice, "invalid R2TSN field"); 2324cf4e6363SMichael Chan break; 2325cf4e6363SMichael Chan #define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0 \ 2326cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 2327cf4e6363SMichael Chan case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0: 2328cf4e6363SMichael Chan strcpy(additional_notice, "invalid cmd len1"); 2329cf4e6363SMichael Chan break; 2330cf4e6363SMichael Chan #define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1 \ 2331cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 2332cf4e6363SMichael Chan case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1: 2333cf4e6363SMichael Chan strcpy(additional_notice, "invalid cmd len2"); 2334cf4e6363SMichael Chan break; 2335cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED: 2336cf4e6363SMichael Chan strcpy(additional_notice, 2337cf4e6363SMichael Chan "pend r2t exceeds MaxOutstandingR2T value"); 2338cf4e6363SMichael Chan break; 2339cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV: 2340cf4e6363SMichael Chan strcpy(additional_notice, "TTT is rsvd"); 2341cf4e6363SMichael Chan break; 2342cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN: 2343cf4e6363SMichael Chan strcpy(additional_notice, "MBL violation"); 2344cf4e6363SMichael Chan break; 2345cf4e6363SMichael Chan #define BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO \ 2346cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO 2347cf4e6363SMichael Chan case BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO: 2348cf4e6363SMichael Chan strcpy(additional_notice, "data seg len != 0"); 2349cf4e6363SMichael Chan break; 2350cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN: 2351cf4e6363SMichael Chan strcpy(additional_notice, "reject pdu len error"); 2352cf4e6363SMichael Chan break; 2353cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ASYNC_PDU_LEN: 2354cf4e6363SMichael Chan strcpy(additional_notice, "async pdu len error"); 2355cf4e6363SMichael Chan break; 2356cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_NOPIN_PDU_LEN: 2357cf4e6363SMichael Chan strcpy(additional_notice, "nopin pdu len error"); 2358cf4e6363SMichael Chan break; 2359cf4e6363SMichael Chan #define BNX2_ERR_PEND_R2T_IN_CLEANUP \ 2360cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_IN_CLEANUP 2361cf4e6363SMichael Chan case BNX2_ERR_PEND_R2T_IN_CLEANUP: 2362cf4e6363SMichael Chan strcpy(additional_notice, "pend r2t in cleanup"); 2363cf4e6363SMichael Chan break; 2364cf4e6363SMichael Chan 2365cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT: 2366cf4e6363SMichael Chan strcpy(additional_notice, "IP fragments rcvd"); 2367cf4e6363SMichael Chan break; 2368cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS: 2369cf4e6363SMichael Chan strcpy(additional_notice, "IP options error"); 2370cf4e6363SMichael Chan break; 2371cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG: 2372cf4e6363SMichael Chan strcpy(additional_notice, "urgent flag error"); 2373cf4e6363SMichael Chan break; 2374cf4e6363SMichael Chan default: 2375cf4e6363SMichael Chan printk(KERN_ALERT "iscsi_err - unknown err %x\n", 2376cf4e6363SMichael Chan iscsi_err->completion_status); 2377cf4e6363SMichael Chan } 2378cf4e6363SMichael Chan 2379cf4e6363SMichael Chan if (need_recovery) { 2380cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2381cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2382cf4e6363SMichael Chan "bnx2i: %s - %s\n", 2383cf4e6363SMichael Chan message, additional_notice); 2384cf4e6363SMichael Chan 2385cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2386cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2387cf4e6363SMichael Chan "conn_err - hostno %d conn %p, " 2388cf4e6363SMichael Chan "iscsi_cid %x cid %x\n", 2389cf4e6363SMichael Chan bnx2i_conn->hba->shost->host_no, 2390cf4e6363SMichael Chan bnx2i_conn, bnx2i_conn->ep->ep_iscsi_cid, 2391cf4e6363SMichael Chan bnx2i_conn->ep->ep_cid); 2392cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn); 2393cf4e6363SMichael Chan } else 2394cf4e6363SMichael Chan if (!test_and_set_bit(iscsi_err->completion_status, 2395cf4e6363SMichael Chan (void *) &bnx2i_conn->violation_notified)) 2396cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2397cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2398cf4e6363SMichael Chan "bnx2i: %s - %s\n", 2399cf4e6363SMichael Chan message, additional_notice); 2400cf4e6363SMichael Chan } 2401cf4e6363SMichael Chan 2402cf4e6363SMichael Chan 2403cf4e6363SMichael Chan /** 2404cf4e6363SMichael Chan * bnx2i_process_conn_destroy_cmpl - process iscsi conn destroy completion 2405cf4e6363SMichael Chan * @hba: adapter structure pointer 2406cf4e6363SMichael Chan * @conn_destroy: conn destroy kcqe pointer 2407cf4e6363SMichael Chan * 2408cf4e6363SMichael Chan * handles connection destroy completion request. 2409cf4e6363SMichael Chan */ 2410cf4e6363SMichael Chan static void bnx2i_process_conn_destroy_cmpl(struct bnx2i_hba *hba, 2411cf4e6363SMichael Chan struct iscsi_kcqe *conn_destroy) 2412cf4e6363SMichael Chan { 2413cf4e6363SMichael Chan struct bnx2i_endpoint *ep; 2414cf4e6363SMichael Chan 2415cf4e6363SMichael Chan ep = bnx2i_find_ep_in_destroy_list(hba, conn_destroy->iscsi_conn_id); 2416cf4e6363SMichael Chan if (!ep) { 2417cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i_conn_destroy_cmpl: no pending " 2418cf4e6363SMichael Chan "offload request, unexpected complection\n"); 2419cf4e6363SMichael Chan return; 2420cf4e6363SMichael Chan } 2421cf4e6363SMichael Chan 2422cf4e6363SMichael Chan if (hba != ep->hba) { 2423cf4e6363SMichael Chan printk(KERN_ALERT "conn destroy- error hba mis-match\n"); 2424cf4e6363SMichael Chan return; 2425cf4e6363SMichael Chan } 2426cf4e6363SMichael Chan 2427cf4e6363SMichael Chan if (conn_destroy->completion_status) { 2428cf4e6363SMichael Chan printk(KERN_ALERT "conn_destroy_cmpl: op failed\n"); 2429cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_FAILED; 2430cf4e6363SMichael Chan } else 2431cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_CMPL; 2432cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2433cf4e6363SMichael Chan } 2434cf4e6363SMichael Chan 2435cf4e6363SMichael Chan 2436cf4e6363SMichael Chan /** 2437cf4e6363SMichael Chan * bnx2i_process_ofld_cmpl - process initial iscsi conn offload completion 2438cf4e6363SMichael Chan * @hba: adapter structure pointer 2439cf4e6363SMichael Chan * @ofld_kcqe: conn offload kcqe pointer 2440cf4e6363SMichael Chan * 2441cf4e6363SMichael Chan * handles initial connection offload completion, ep_connect() thread is 2442cf4e6363SMichael Chan * woken-up to continue with LLP connect process 2443cf4e6363SMichael Chan */ 2444cf4e6363SMichael Chan static void bnx2i_process_ofld_cmpl(struct bnx2i_hba *hba, 2445cf4e6363SMichael Chan struct iscsi_kcqe *ofld_kcqe) 2446cf4e6363SMichael Chan { 2447cf4e6363SMichael Chan u32 cid_addr; 2448cf4e6363SMichael Chan struct bnx2i_endpoint *ep; 2449cf4e6363SMichael Chan u32 cid_num; 2450cf4e6363SMichael Chan 2451cf4e6363SMichael Chan ep = bnx2i_find_ep_in_ofld_list(hba, ofld_kcqe->iscsi_conn_id); 2452cf4e6363SMichael Chan if (!ep) { 2453cf4e6363SMichael Chan printk(KERN_ALERT "ofld_cmpl: no pend offload request\n"); 2454cf4e6363SMichael Chan return; 2455cf4e6363SMichael Chan } 2456cf4e6363SMichael Chan 2457cf4e6363SMichael Chan if (hba != ep->hba) { 2458cf4e6363SMichael Chan printk(KERN_ALERT "ofld_cmpl: error hba mis-match\n"); 2459cf4e6363SMichael Chan return; 2460cf4e6363SMichael Chan } 2461cf4e6363SMichael Chan 2462cf4e6363SMichael Chan if (ofld_kcqe->completion_status) { 2463bee34877SEddie Wai ep->state = EP_STATE_OFLD_FAILED; 2464cf4e6363SMichael Chan if (ofld_kcqe->completion_status == 2465cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) 2466bee34877SEddie Wai printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - unable " 2467bee34877SEddie Wai "to allocate iSCSI context resources\n", 2468bee34877SEddie Wai hba->netdev->name); 2469bee34877SEddie Wai else if (ofld_kcqe->completion_status == 2470bee34877SEddie Wai ISCSI_KCQE_COMPLETION_STATUS_INVALID_OPCODE) 2471bee34877SEddie Wai printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - invalid " 2472bee34877SEddie Wai "opcode\n", hba->netdev->name); 2473bee34877SEddie Wai else if (ofld_kcqe->completion_status == 2474bee34877SEddie Wai ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY) 2475bee34877SEddie Wai /* error status code valid only for 5771x chipset */ 2476bee34877SEddie Wai ep->state = EP_STATE_OFLD_FAILED_CID_BUSY; 2477bee34877SEddie Wai else 2478bee34877SEddie Wai printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - invalid " 2479bee34877SEddie Wai "error code %d\n", hba->netdev->name, 2480bee34877SEddie Wai ofld_kcqe->completion_status); 2481cf4e6363SMichael Chan } else { 2482cf4e6363SMichael Chan ep->state = EP_STATE_OFLD_COMPL; 2483cf4e6363SMichael Chan cid_addr = ofld_kcqe->iscsi_conn_context_id; 2484cf4e6363SMichael Chan cid_num = bnx2i_get_cid_num(ep); 2485cf4e6363SMichael Chan ep->ep_cid = cid_addr; 2486cf4e6363SMichael Chan ep->qp.ctx_base = NULL; 2487cf4e6363SMichael Chan } 2488cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2489cf4e6363SMichael Chan } 2490cf4e6363SMichael Chan 2491cf4e6363SMichael Chan /** 2492cf4e6363SMichael Chan * bnx2i_indicate_kcqe - process iscsi conn update completion KCQE 2493cf4e6363SMichael Chan * @hba: adapter structure pointer 2494cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 2495cf4e6363SMichael Chan * 2496cf4e6363SMichael Chan * Generic KCQ event handler/dispatcher 2497cf4e6363SMichael Chan */ 2498cf4e6363SMichael Chan static void bnx2i_indicate_kcqe(void *context, struct kcqe *kcqe[], 2499cf4e6363SMichael Chan u32 num_cqe) 2500cf4e6363SMichael Chan { 2501cf4e6363SMichael Chan struct bnx2i_hba *hba = context; 2502cf4e6363SMichael Chan int i = 0; 2503cf4e6363SMichael Chan struct iscsi_kcqe *ikcqe = NULL; 2504cf4e6363SMichael Chan 2505cf4e6363SMichael Chan while (i < num_cqe) { 2506cf4e6363SMichael Chan ikcqe = (struct iscsi_kcqe *) kcqe[i++]; 2507cf4e6363SMichael Chan 2508cf4e6363SMichael Chan if (ikcqe->op_code == 2509cf4e6363SMichael Chan ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION) 2510cf4e6363SMichael Chan bnx2i_fastpath_notification(hba, ikcqe); 2511cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_OFFLOAD_CONN) 2512cf4e6363SMichael Chan bnx2i_process_ofld_cmpl(hba, ikcqe); 2513cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_UPDATE_CONN) 2514cf4e6363SMichael Chan bnx2i_process_update_conn_cmpl(hba, ikcqe); 2515cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_INIT) { 2516cf4e6363SMichael Chan if (ikcqe->completion_status != 2517cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_SUCCESS) 2518cf4e6363SMichael Chan bnx2i_iscsi_license_error(hba, ikcqe->\ 2519cf4e6363SMichael Chan completion_status); 2520cf4e6363SMichael Chan else { 2521cf4e6363SMichael Chan set_bit(ADAPTER_STATE_UP, &hba->adapter_state); 2522cf4e6363SMichael Chan bnx2i_get_link_state(hba); 2523cf4e6363SMichael Chan printk(KERN_INFO "bnx2i [%.2x:%.2x.%.2x]: " 2524cf4e6363SMichael Chan "ISCSI_INIT passed\n", 2525cf4e6363SMichael Chan (u8)hba->pcidev->bus->number, 2526cf4e6363SMichael Chan hba->pci_devno, 2527cf4e6363SMichael Chan (u8)hba->pci_func); 2528cf4e6363SMichael Chan 2529cf4e6363SMichael Chan 2530cf4e6363SMichael Chan } 2531cf4e6363SMichael Chan } else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_DESTROY_CONN) 2532cf4e6363SMichael Chan bnx2i_process_conn_destroy_cmpl(hba, ikcqe); 2533cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_ISCSI_ERROR) 2534cf4e6363SMichael Chan bnx2i_process_iscsi_error(hba, ikcqe); 2535cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_TCP_ERROR) 2536cf4e6363SMichael Chan bnx2i_process_tcp_error(hba, ikcqe); 2537cf4e6363SMichael Chan else 2538cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n", 2539cf4e6363SMichael Chan ikcqe->op_code); 2540cf4e6363SMichael Chan } 2541cf4e6363SMichael Chan } 2542cf4e6363SMichael Chan 2543cf4e6363SMichael Chan 2544cf4e6363SMichael Chan /** 2545cf4e6363SMichael Chan * bnx2i_indicate_netevent - Generic netdev event handler 2546cf4e6363SMichael Chan * @context: adapter structure pointer 2547cf4e6363SMichael Chan * @event: event type 2548415199f2SMichael Chan * @vlan_id: vlans id - associated vlan id with this event 2549cf4e6363SMichael Chan * 2550cf4e6363SMichael Chan * Handles four netdev events, NETDEV_UP, NETDEV_DOWN, 2551cf4e6363SMichael Chan * NETDEV_GOING_DOWN and NETDEV_CHANGE 2552cf4e6363SMichael Chan */ 2553415199f2SMichael Chan static void bnx2i_indicate_netevent(void *context, unsigned long event, 2554415199f2SMichael Chan u16 vlan_id) 2555cf4e6363SMichael Chan { 2556cf4e6363SMichael Chan struct bnx2i_hba *hba = context; 2557cf4e6363SMichael Chan 2558415199f2SMichael Chan /* Ignore all netevent coming from vlans */ 2559415199f2SMichael Chan if (vlan_id != 0) 2560415199f2SMichael Chan return; 2561415199f2SMichael Chan 2562cf4e6363SMichael Chan switch (event) { 2563cf4e6363SMichael Chan case NETDEV_UP: 2564cf4e6363SMichael Chan if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) 2565cf4e6363SMichael Chan bnx2i_send_fw_iscsi_init_msg(hba); 2566cf4e6363SMichael Chan break; 2567cf4e6363SMichael Chan case NETDEV_DOWN: 2568cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); 2569cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); 2570cf4e6363SMichael Chan break; 2571cf4e6363SMichael Chan case NETDEV_GOING_DOWN: 2572cf4e6363SMichael Chan set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); 2573cf4e6363SMichael Chan iscsi_host_for_each_session(hba->shost, 2574cf4e6363SMichael Chan bnx2i_drop_session); 2575cf4e6363SMichael Chan break; 2576cf4e6363SMichael Chan case NETDEV_CHANGE: 2577cf4e6363SMichael Chan bnx2i_get_link_state(hba); 2578cf4e6363SMichael Chan break; 2579cf4e6363SMichael Chan default: 2580cf4e6363SMichael Chan ; 2581cf4e6363SMichael Chan } 2582cf4e6363SMichael Chan } 2583cf4e6363SMichael Chan 2584cf4e6363SMichael Chan 2585cf4e6363SMichael Chan /** 2586cf4e6363SMichael Chan * bnx2i_cm_connect_cmpl - process iscsi conn establishment completion 2587cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2588cf4e6363SMichael Chan * 2589cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2590cf4e6363SMichael Chan * indicate completion of option-2 TCP connect request. 2591cf4e6363SMichael Chan */ 2592cf4e6363SMichael Chan static void bnx2i_cm_connect_cmpl(struct cnic_sock *cm_sk) 2593cf4e6363SMichael Chan { 2594cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2595cf4e6363SMichael Chan 2596cf4e6363SMichael Chan if (test_bit(ADAPTER_STATE_GOING_DOWN, &ep->hba->adapter_state)) 2597cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_FAILED; 2598cf4e6363SMichael Chan else if (test_bit(SK_F_OFFLD_COMPLETE, &cm_sk->flags)) 2599cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_COMPL; 2600cf4e6363SMichael Chan else 2601cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_FAILED; 2602cf4e6363SMichael Chan 2603cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2604cf4e6363SMichael Chan } 2605cf4e6363SMichael Chan 2606cf4e6363SMichael Chan 2607cf4e6363SMichael Chan /** 2608cf4e6363SMichael Chan * bnx2i_cm_close_cmpl - process tcp conn close completion 2609cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2610cf4e6363SMichael Chan * 2611cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2612cf4e6363SMichael Chan * indicate completion of option-2 graceful TCP connect shutdown 2613cf4e6363SMichael Chan */ 2614cf4e6363SMichael Chan static void bnx2i_cm_close_cmpl(struct cnic_sock *cm_sk) 2615cf4e6363SMichael Chan { 2616cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2617cf4e6363SMichael Chan 2618cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_COMPL; 2619cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2620cf4e6363SMichael Chan } 2621cf4e6363SMichael Chan 2622cf4e6363SMichael Chan 2623cf4e6363SMichael Chan /** 2624cf4e6363SMichael Chan * bnx2i_cm_abort_cmpl - process abortive tcp conn teardown completion 2625cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2626cf4e6363SMichael Chan * 2627cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2628cf4e6363SMichael Chan * indicate completion of option-2 abortive TCP connect termination 2629cf4e6363SMichael Chan */ 2630cf4e6363SMichael Chan static void bnx2i_cm_abort_cmpl(struct cnic_sock *cm_sk) 2631cf4e6363SMichael Chan { 2632cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2633cf4e6363SMichael Chan 2634cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_COMPL; 2635cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2636cf4e6363SMichael Chan } 2637cf4e6363SMichael Chan 2638cf4e6363SMichael Chan 2639cf4e6363SMichael Chan /** 2640cf4e6363SMichael Chan * bnx2i_cm_remote_close - process received TCP FIN 2641cf4e6363SMichael Chan * @hba: adapter structure pointer 2642cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 2643cf4e6363SMichael Chan * 2644cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to indicate 2645cf4e6363SMichael Chan * async TCP events such as FIN 2646cf4e6363SMichael Chan */ 2647cf4e6363SMichael Chan static void bnx2i_cm_remote_close(struct cnic_sock *cm_sk) 2648cf4e6363SMichael Chan { 2649cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2650cf4e6363SMichael Chan 2651cf4e6363SMichael Chan ep->state = EP_STATE_TCP_FIN_RCVD; 2652cf4e6363SMichael Chan if (ep->conn) 2653cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(ep->hba, ep->conn); 2654cf4e6363SMichael Chan } 2655cf4e6363SMichael Chan 2656cf4e6363SMichael Chan /** 2657cf4e6363SMichael Chan * bnx2i_cm_remote_abort - process TCP RST and start conn cleanup 2658cf4e6363SMichael Chan * @hba: adapter structure pointer 2659cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 2660cf4e6363SMichael Chan * 2661cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2662cf4e6363SMichael Chan * indicate async TCP events (RST) sent by the peer. 2663cf4e6363SMichael Chan */ 2664cf4e6363SMichael Chan static void bnx2i_cm_remote_abort(struct cnic_sock *cm_sk) 2665cf4e6363SMichael Chan { 2666cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 266794810e82SEddie Wai u32 old_state = ep->state; 2668cf4e6363SMichael Chan 2669cf4e6363SMichael Chan ep->state = EP_STATE_TCP_RST_RCVD; 267094810e82SEddie Wai if (old_state == EP_STATE_DISCONN_START) 267194810e82SEddie Wai wake_up_interruptible(&ep->ofld_wait); 267294810e82SEddie Wai else 2673cf4e6363SMichael Chan if (ep->conn) 2674cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(ep->hba, ep->conn); 2675cf4e6363SMichael Chan } 2676cf4e6363SMichael Chan 2677cf4e6363SMichael Chan 2678939b82e5SMichael Chan static int bnx2i_send_nl_mesg(void *context, u32 msg_type, 2679cf4e6363SMichael Chan char *buf, u16 buflen) 2680cf4e6363SMichael Chan { 2681939b82e5SMichael Chan struct bnx2i_hba *hba = context; 2682939b82e5SMichael Chan int rc; 2683cf4e6363SMichael Chan 2684cf4e6363SMichael Chan if (!hba) 2685939b82e5SMichael Chan return -ENODEV; 2686cf4e6363SMichael Chan 2687939b82e5SMichael Chan rc = iscsi_offload_mesg(hba->shost, &bnx2i_iscsi_transport, 2688939b82e5SMichael Chan msg_type, buf, buflen); 2689939b82e5SMichael Chan if (rc) 2690cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: private nl message send error\n"); 2691cf4e6363SMichael Chan 2692939b82e5SMichael Chan return rc; 2693cf4e6363SMichael Chan } 2694cf4e6363SMichael Chan 2695cf4e6363SMichael Chan 2696cf4e6363SMichael Chan /** 2697cf4e6363SMichael Chan * bnx2i_cnic_cb - global template of bnx2i - cnic driver interface structure 2698cf4e6363SMichael Chan * carrying callback function pointers 2699cf4e6363SMichael Chan * 2700cf4e6363SMichael Chan */ 2701cf4e6363SMichael Chan struct cnic_ulp_ops bnx2i_cnic_cb = { 2702cf4e6363SMichael Chan .cnic_init = bnx2i_ulp_init, 2703cf4e6363SMichael Chan .cnic_exit = bnx2i_ulp_exit, 2704cf4e6363SMichael Chan .cnic_start = bnx2i_start, 2705cf4e6363SMichael Chan .cnic_stop = bnx2i_stop, 2706cf4e6363SMichael Chan .indicate_kcqes = bnx2i_indicate_kcqe, 2707cf4e6363SMichael Chan .indicate_netevent = bnx2i_indicate_netevent, 2708cf4e6363SMichael Chan .cm_connect_complete = bnx2i_cm_connect_cmpl, 2709cf4e6363SMichael Chan .cm_close_complete = bnx2i_cm_close_cmpl, 2710cf4e6363SMichael Chan .cm_abort_complete = bnx2i_cm_abort_cmpl, 2711cf4e6363SMichael Chan .cm_remote_close = bnx2i_cm_remote_close, 2712cf4e6363SMichael Chan .cm_remote_abort = bnx2i_cm_remote_abort, 2713cf4e6363SMichael Chan .iscsi_nl_send_msg = bnx2i_send_nl_mesg, 27142e499d3cSBarak Witkowski .cnic_get_stats = bnx2i_get_stats, 2715cf4e6363SMichael Chan .owner = THIS_MODULE 2716cf4e6363SMichael Chan }; 2717cf4e6363SMichael Chan 2718cf4e6363SMichael Chan 2719cf4e6363SMichael Chan /** 2720cf4e6363SMichael Chan * bnx2i_map_ep_dbell_regs - map connection doorbell registers 2721cf4e6363SMichael Chan * @ep: bnx2i endpoint 2722cf4e6363SMichael Chan * 2723cf4e6363SMichael Chan * maps connection's SQ and RQ doorbell registers, 5706/5708/5709 hosts these 2724cf4e6363SMichael Chan * register in BAR #0. Whereas in 57710 these register are accessed by 2725cf4e6363SMichael Chan * mapping BAR #1 2726cf4e6363SMichael Chan */ 2727cf4e6363SMichael Chan int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) 2728cf4e6363SMichael Chan { 2729cf4e6363SMichael Chan u32 cid_num; 2730cf4e6363SMichael Chan u32 reg_off; 2731cf4e6363SMichael Chan u32 first_l4l5; 2732cf4e6363SMichael Chan u32 ctx_sz; 2733cf4e6363SMichael Chan u32 config2; 2734cf4e6363SMichael Chan resource_size_t reg_base; 2735cf4e6363SMichael Chan 2736cf4e6363SMichael Chan cid_num = bnx2i_get_cid_num(ep); 2737cf4e6363SMichael Chan 2738cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 2739cf4e6363SMichael Chan reg_base = pci_resource_start(ep->hba->pcidev, 2740cf4e6363SMichael Chan BNX2X_DOORBELL_PCI_BAR); 2741f78afb35SMichael Chan reg_off = (1 << BNX2X_DB_SHIFT) * (cid_num & 0x1FFFF); 2742cf4e6363SMichael Chan ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, 4); 2743cf4e6363SMichael Chan goto arm_cq; 2744cf4e6363SMichael Chan } 2745cf4e6363SMichael Chan 2746cf4e6363SMichael Chan if ((test_bit(BNX2I_NX2_DEV_5709, &ep->hba->cnic_dev_type)) && 2747cf4e6363SMichael Chan (ep->hba->mail_queue_access == BNX2I_MQ_BIN_MODE)) { 2748cf4e6363SMichael Chan config2 = REG_RD(ep->hba, BNX2_MQ_CONFIG2); 2749cf4e6363SMichael Chan first_l4l5 = config2 & BNX2_MQ_CONFIG2_FIRST_L4L5; 2750cf4e6363SMichael Chan ctx_sz = (config2 & BNX2_MQ_CONFIG2_CONT_SZ) >> 3; 2751cf4e6363SMichael Chan if (ctx_sz) 2752cf4e6363SMichael Chan reg_off = CTX_OFFSET + MAX_CID_CNT * MB_KERNEL_CTX_SIZE 275353203244SAnil Veerabhadrappa + BNX2I_570X_PAGE_SIZE_DEFAULT * 2754cf4e6363SMichael Chan (((cid_num - first_l4l5) / ctx_sz) + 256); 2755cf4e6363SMichael Chan else 2756cf4e6363SMichael Chan reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); 2757cf4e6363SMichael Chan } else 2758cf4e6363SMichael Chan /* 5709 device in normal node and 5706/5708 devices */ 2759cf4e6363SMichael Chan reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); 2760cf4e6363SMichael Chan 2761a7717180SEddie Wai ep->qp.ctx_base = ioremap_nocache(ep->hba->reg_base + reg_off, 2762cf4e6363SMichael Chan MB_KERNEL_CTX_SIZE); 2763cf4e6363SMichael Chan if (!ep->qp.ctx_base) 2764cf4e6363SMichael Chan return -ENOMEM; 2765cf4e6363SMichael Chan 2766cf4e6363SMichael Chan arm_cq: 2767cf4e6363SMichael Chan bnx2i_arm_cq_event_coalescing(ep, CNIC_ARM_CQE); 2768cf4e6363SMichael Chan return 0; 2769cf4e6363SMichael Chan } 2770