1cf4e6363SMichael Chan /* bnx2i_hwi.c: Broadcom NetXtreme II iSCSI driver. 2cf4e6363SMichael Chan * 3cf4e6363SMichael Chan * Copyright (c) 2006 - 2009 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) 12cf4e6363SMichael Chan */ 13cf4e6363SMichael Chan 145a0e3ad6STejun Heo #include <linux/gfp.h> 15cf4e6363SMichael Chan #include <scsi/scsi_tcq.h> 16cf4e6363SMichael Chan #include <scsi/libiscsi.h> 17cf4e6363SMichael Chan #include "bnx2i.h" 18cf4e6363SMichael Chan 19cf4e6363SMichael Chan /** 20cf4e6363SMichael Chan * bnx2i_get_cid_num - get cid from ep 21cf4e6363SMichael Chan * @ep: endpoint pointer 22cf4e6363SMichael Chan * 23cf4e6363SMichael Chan * Only applicable to 57710 family of devices 24cf4e6363SMichael Chan */ 25cf4e6363SMichael Chan static u32 bnx2i_get_cid_num(struct bnx2i_endpoint *ep) 26cf4e6363SMichael Chan { 27cf4e6363SMichael Chan u32 cid; 28cf4e6363SMichael Chan 29cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 30cf4e6363SMichael Chan cid = ep->ep_cid; 31cf4e6363SMichael Chan else 32cf4e6363SMichael Chan cid = GET_CID_NUM(ep->ep_cid); 33cf4e6363SMichael Chan return cid; 34cf4e6363SMichael Chan } 35cf4e6363SMichael Chan 36cf4e6363SMichael Chan 37cf4e6363SMichael Chan /** 38cf4e6363SMichael Chan * bnx2i_adjust_qp_size - Adjust SQ/RQ/CQ size for 57710 device type 39cf4e6363SMichael Chan * @hba: Adapter for which adjustments is to be made 40cf4e6363SMichael Chan * 41cf4e6363SMichael Chan * Only applicable to 57710 family of devices 42cf4e6363SMichael Chan */ 43cf4e6363SMichael Chan static void bnx2i_adjust_qp_size(struct bnx2i_hba *hba) 44cf4e6363SMichael Chan { 45cf4e6363SMichael Chan u32 num_elements_per_pg; 46cf4e6363SMichael Chan 47cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_5706, &hba->cnic_dev_type) || 48cf4e6363SMichael Chan test_bit(BNX2I_NX2_DEV_5708, &hba->cnic_dev_type) || 49cf4e6363SMichael Chan test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) { 50cf4e6363SMichael Chan if (!is_power_of_2(hba->max_sqes)) 51cf4e6363SMichael Chan hba->max_sqes = rounddown_pow_of_two(hba->max_sqes); 52cf4e6363SMichael Chan 53cf4e6363SMichael Chan if (!is_power_of_2(hba->max_rqes)) 54cf4e6363SMichael Chan hba->max_rqes = rounddown_pow_of_two(hba->max_rqes); 55cf4e6363SMichael Chan } 56cf4e6363SMichael Chan 57cf4e6363SMichael Chan /* Adjust each queue size if the user selection does not 58cf4e6363SMichael Chan * yield integral num of page buffers 59cf4e6363SMichael Chan */ 60cf4e6363SMichael Chan /* adjust SQ */ 61cf4e6363SMichael Chan num_elements_per_pg = PAGE_SIZE / BNX2I_SQ_WQE_SIZE; 62cf4e6363SMichael Chan if (hba->max_sqes < num_elements_per_pg) 63cf4e6363SMichael Chan hba->max_sqes = num_elements_per_pg; 64cf4e6363SMichael Chan else if (hba->max_sqes % num_elements_per_pg) 65cf4e6363SMichael Chan hba->max_sqes = (hba->max_sqes + num_elements_per_pg - 1) & 66cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 67cf4e6363SMichael Chan 68cf4e6363SMichael Chan /* adjust CQ */ 69cf4e6363SMichael Chan num_elements_per_pg = PAGE_SIZE / BNX2I_CQE_SIZE; 70cf4e6363SMichael Chan if (hba->max_cqes < num_elements_per_pg) 71cf4e6363SMichael Chan hba->max_cqes = num_elements_per_pg; 72cf4e6363SMichael Chan else if (hba->max_cqes % num_elements_per_pg) 73cf4e6363SMichael Chan hba->max_cqes = (hba->max_cqes + num_elements_per_pg - 1) & 74cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 75cf4e6363SMichael Chan 76cf4e6363SMichael Chan /* adjust RQ */ 77cf4e6363SMichael Chan num_elements_per_pg = PAGE_SIZE / BNX2I_RQ_WQE_SIZE; 78cf4e6363SMichael Chan if (hba->max_rqes < num_elements_per_pg) 79cf4e6363SMichael Chan hba->max_rqes = num_elements_per_pg; 80cf4e6363SMichael Chan else if (hba->max_rqes % num_elements_per_pg) 81cf4e6363SMichael Chan hba->max_rqes = (hba->max_rqes + num_elements_per_pg - 1) & 82cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 83cf4e6363SMichael Chan } 84cf4e6363SMichael Chan 85cf4e6363SMichael Chan 86cf4e6363SMichael Chan /** 87cf4e6363SMichael Chan * bnx2i_get_link_state - get network interface link state 88cf4e6363SMichael Chan * @hba: adapter instance pointer 89cf4e6363SMichael Chan * 90cf4e6363SMichael Chan * updates adapter structure flag based on netdev state 91cf4e6363SMichael Chan */ 92cf4e6363SMichael Chan static void bnx2i_get_link_state(struct bnx2i_hba *hba) 93cf4e6363SMichael Chan { 94cf4e6363SMichael Chan if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state)) 95cf4e6363SMichael Chan set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); 96cf4e6363SMichael Chan else 97cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); 98cf4e6363SMichael Chan } 99cf4e6363SMichael Chan 100cf4e6363SMichael Chan 101cf4e6363SMichael Chan /** 102cf4e6363SMichael Chan * bnx2i_iscsi_license_error - displays iscsi license related error message 103cf4e6363SMichael Chan * @hba: adapter instance pointer 104cf4e6363SMichael Chan * @error_code: error classification 105cf4e6363SMichael Chan * 106cf4e6363SMichael Chan * Puts out an error log when driver is unable to offload iscsi connection 107cf4e6363SMichael Chan * due to license restrictions 108cf4e6363SMichael Chan */ 109cf4e6363SMichael Chan static void bnx2i_iscsi_license_error(struct bnx2i_hba *hba, u32 error_code) 110cf4e6363SMichael Chan { 111cf4e6363SMichael Chan if (error_code == ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED) 112cf4e6363SMichael Chan /* iSCSI offload not supported on this device */ 113cf4e6363SMichael Chan printk(KERN_ERR "bnx2i: iSCSI not supported, dev=%s\n", 114cf4e6363SMichael Chan hba->netdev->name); 115cf4e6363SMichael Chan if (error_code == ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED) 116cf4e6363SMichael Chan /* iSCSI offload not supported on this LOM device */ 117cf4e6363SMichael Chan printk(KERN_ERR "bnx2i: LOM is not enable to " 118cf4e6363SMichael Chan "offload iSCSI connections, dev=%s\n", 119cf4e6363SMichael Chan hba->netdev->name); 120cf4e6363SMichael Chan set_bit(ADAPTER_STATE_INIT_FAILED, &hba->adapter_state); 121cf4e6363SMichael Chan } 122cf4e6363SMichael Chan 123cf4e6363SMichael Chan 124cf4e6363SMichael Chan /** 125cf4e6363SMichael Chan * bnx2i_arm_cq_event_coalescing - arms CQ to enable EQ notification 126cf4e6363SMichael Chan * @ep: endpoint (transport indentifier) structure 127cf4e6363SMichael Chan * @action: action, ARM or DISARM. For now only ARM_CQE is used 128cf4e6363SMichael Chan * 129cf4e6363SMichael Chan * Arm'ing CQ will enable chip to generate global EQ events inorder to interrupt 130cf4e6363SMichael Chan * the driver. EQ event is generated CQ index is hit or at least 1 CQ is 131cf4e6363SMichael Chan * outstanding and on chip timer expires 132cf4e6363SMichael Chan */ 133cf4e6363SMichael Chan void bnx2i_arm_cq_event_coalescing(struct bnx2i_endpoint *ep, u8 action) 134cf4e6363SMichael Chan { 135cf4e6363SMichael Chan struct bnx2i_5771x_cq_db *cq_db; 136cf4e6363SMichael Chan u16 cq_index; 1378776193bSAnil Veerabhadrappa u16 next_index; 1388776193bSAnil Veerabhadrappa u32 num_active_cmds; 139cf4e6363SMichael Chan 1408776193bSAnil Veerabhadrappa 1418776193bSAnil Veerabhadrappa /* Coalesce CQ entries only on 10G devices */ 142cf4e6363SMichael Chan if (!test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 143cf4e6363SMichael Chan return; 144cf4e6363SMichael Chan 1458776193bSAnil Veerabhadrappa /* Do not update CQ DB multiple times before firmware writes 1468776193bSAnil Veerabhadrappa * '0xFFFF' to CQDB->SQN field. Deviation may cause spurious 1478776193bSAnil Veerabhadrappa * interrupts and other unwanted results 1488776193bSAnil Veerabhadrappa */ 1498776193bSAnil Veerabhadrappa cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt; 1508776193bSAnil Veerabhadrappa if (cq_db->sqn[0] && cq_db->sqn[0] != 0xFFFF) 1518776193bSAnil Veerabhadrappa return; 1528776193bSAnil Veerabhadrappa 153cf4e6363SMichael Chan if (action == CNIC_ARM_CQE) { 1548776193bSAnil Veerabhadrappa num_active_cmds = ep->num_active_cmds; 1558776193bSAnil Veerabhadrappa if (num_active_cmds <= event_coal_min) 1568776193bSAnil Veerabhadrappa next_index = 1; 1578776193bSAnil Veerabhadrappa else 1588776193bSAnil Veerabhadrappa next_index = event_coal_min + 1598776193bSAnil Veerabhadrappa (num_active_cmds - event_coal_min) / event_coal_div; 1608776193bSAnil Veerabhadrappa if (!next_index) 1618776193bSAnil Veerabhadrappa next_index = 1; 1628776193bSAnil Veerabhadrappa cq_index = ep->qp.cqe_exp_seq_sn + next_index - 1; 1638776193bSAnil Veerabhadrappa if (cq_index > ep->qp.cqe_size * 2) 1648776193bSAnil Veerabhadrappa cq_index -= ep->qp.cqe_size * 2; 1658776193bSAnil Veerabhadrappa if (!cq_index) 166cf4e6363SMichael Chan cq_index = 1; 1678776193bSAnil Veerabhadrappa 168cf4e6363SMichael Chan cq_db->sqn[0] = cq_index; 169cf4e6363SMichael Chan } 170cf4e6363SMichael Chan } 171cf4e6363SMichael Chan 172cf4e6363SMichael Chan 173cf4e6363SMichael Chan /** 174cf4e6363SMichael Chan * bnx2i_get_rq_buf - copy RQ buffer contents to driver buffer 175cf4e6363SMichael Chan * @conn: iscsi connection on which RQ event occured 176cf4e6363SMichael Chan * @ptr: driver buffer to which RQ buffer contents is to 177cf4e6363SMichael Chan * be copied 178cf4e6363SMichael Chan * @len: length of valid data inside RQ buf 179cf4e6363SMichael Chan * 180cf4e6363SMichael Chan * Copies RQ buffer contents from shared (DMA'able) memory region to 181cf4e6363SMichael Chan * driver buffer. RQ is used to DMA unsolicitated iscsi pdu's and 182cf4e6363SMichael Chan * scsi sense info 183cf4e6363SMichael Chan */ 184cf4e6363SMichael Chan void bnx2i_get_rq_buf(struct bnx2i_conn *bnx2i_conn, char *ptr, int len) 185cf4e6363SMichael Chan { 186cf4e6363SMichael Chan if (!bnx2i_conn->ep->qp.rqe_left) 187cf4e6363SMichael Chan return; 188cf4e6363SMichael Chan 189cf4e6363SMichael Chan bnx2i_conn->ep->qp.rqe_left--; 190cf4e6363SMichael Chan memcpy(ptr, (u8 *) bnx2i_conn->ep->qp.rq_cons_qe, len); 191cf4e6363SMichael Chan if (bnx2i_conn->ep->qp.rq_cons_qe == bnx2i_conn->ep->qp.rq_last_qe) { 192cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_qe = bnx2i_conn->ep->qp.rq_first_qe; 193cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_idx = 0; 194cf4e6363SMichael Chan } else { 195cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_qe++; 196cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_idx++; 197cf4e6363SMichael Chan } 198cf4e6363SMichael Chan } 199cf4e6363SMichael Chan 200cf4e6363SMichael Chan 201cf4e6363SMichael Chan static void bnx2i_ring_577xx_doorbell(struct bnx2i_conn *conn) 202cf4e6363SMichael Chan { 203cf4e6363SMichael Chan struct bnx2i_5771x_dbell dbell; 204cf4e6363SMichael Chan u32 msg; 205cf4e6363SMichael Chan 206cf4e6363SMichael Chan memset(&dbell, 0, sizeof(dbell)); 207cf4e6363SMichael Chan dbell.dbell.header = (B577XX_ISCSI_CONNECTION_TYPE << 208cf4e6363SMichael Chan B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT); 209cf4e6363SMichael Chan msg = *((u32 *)&dbell); 210cf4e6363SMichael Chan /* TODO : get doorbell register mapping */ 211cf4e6363SMichael Chan writel(cpu_to_le32(msg), conn->ep->qp.ctx_base); 212cf4e6363SMichael Chan } 213cf4e6363SMichael Chan 214cf4e6363SMichael Chan 215cf4e6363SMichael Chan /** 216cf4e6363SMichael Chan * bnx2i_put_rq_buf - Replenish RQ buffer, if required ring on chip doorbell 217cf4e6363SMichael Chan * @conn: iscsi connection on which event to post 218cf4e6363SMichael Chan * @count: number of RQ buffer being posted to chip 219cf4e6363SMichael Chan * 220cf4e6363SMichael Chan * No need to ring hardware doorbell for 57710 family of devices 221cf4e6363SMichael Chan */ 222cf4e6363SMichael Chan void bnx2i_put_rq_buf(struct bnx2i_conn *bnx2i_conn, int count) 223cf4e6363SMichael Chan { 224cf4e6363SMichael Chan struct bnx2i_5771x_sq_rq_db *rq_db; 225cf4e6363SMichael Chan u16 hi_bit = (bnx2i_conn->ep->qp.rq_prod_idx & 0x8000); 226cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 227cf4e6363SMichael Chan 228cf4e6363SMichael Chan ep->qp.rqe_left += count; 229cf4e6363SMichael Chan ep->qp.rq_prod_idx &= 0x7FFF; 230cf4e6363SMichael Chan ep->qp.rq_prod_idx += count; 231cf4e6363SMichael Chan 232cf4e6363SMichael Chan if (ep->qp.rq_prod_idx > bnx2i_conn->hba->max_rqes) { 233cf4e6363SMichael Chan ep->qp.rq_prod_idx %= bnx2i_conn->hba->max_rqes; 234cf4e6363SMichael Chan if (!hi_bit) 235cf4e6363SMichael Chan ep->qp.rq_prod_idx |= 0x8000; 236cf4e6363SMichael Chan } else 237cf4e6363SMichael Chan ep->qp.rq_prod_idx |= hi_bit; 238cf4e6363SMichael Chan 239cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 240cf4e6363SMichael Chan rq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.rq_pgtbl_virt; 241cf4e6363SMichael Chan rq_db->prod_idx = ep->qp.rq_prod_idx; 242cf4e6363SMichael Chan /* no need to ring hardware doorbell for 57710 */ 243cf4e6363SMichael Chan } else { 244cf4e6363SMichael Chan writew(ep->qp.rq_prod_idx, 245cf4e6363SMichael Chan ep->qp.ctx_base + CNIC_RECV_DOORBELL); 246cf4e6363SMichael Chan } 247cf4e6363SMichael Chan mmiowb(); 248cf4e6363SMichael Chan } 249cf4e6363SMichael Chan 250cf4e6363SMichael Chan 251cf4e6363SMichael Chan /** 252cf4e6363SMichael Chan * bnx2i_ring_sq_dbell - Ring SQ doorbell to wake-up the processing engine 253cf4e6363SMichael Chan * @conn: iscsi connection to which new SQ entries belong 254cf4e6363SMichael Chan * @count: number of SQ WQEs to post 255cf4e6363SMichael Chan * 256cf4e6363SMichael Chan * SQ DB is updated in host memory and TX Doorbell is rung for 57710 family 257cf4e6363SMichael Chan * of devices. For 5706/5708/5709 new SQ WQE count is written into the 258cf4e6363SMichael Chan * doorbell register 259cf4e6363SMichael Chan */ 260cf4e6363SMichael Chan static void bnx2i_ring_sq_dbell(struct bnx2i_conn *bnx2i_conn, int count) 261cf4e6363SMichael Chan { 262cf4e6363SMichael Chan struct bnx2i_5771x_sq_rq_db *sq_db; 263cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 264cf4e6363SMichael Chan 265cf4e6363SMichael Chan ep->num_active_cmds++; 266cf4e6363SMichael Chan wmb(); /* flush SQ WQE memory before the doorbell is rung */ 267cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 268cf4e6363SMichael Chan sq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.sq_pgtbl_virt; 269cf4e6363SMichael Chan sq_db->prod_idx = ep->qp.sq_prod_idx; 270cf4e6363SMichael Chan bnx2i_ring_577xx_doorbell(bnx2i_conn); 271cf4e6363SMichael Chan } else 272cf4e6363SMichael Chan writew(count, ep->qp.ctx_base + CNIC_SEND_DOORBELL); 273cf4e6363SMichael Chan 274cf4e6363SMichael Chan mmiowb(); /* flush posted PCI writes */ 275cf4e6363SMichael Chan } 276cf4e6363SMichael Chan 277cf4e6363SMichael Chan 278cf4e6363SMichael Chan /** 279cf4e6363SMichael Chan * bnx2i_ring_dbell_update_sq_params - update SQ driver parameters 280cf4e6363SMichael Chan * @conn: iscsi connection to which new SQ entries belong 281cf4e6363SMichael Chan * @count: number of SQ WQEs to post 282cf4e6363SMichael Chan * 283cf4e6363SMichael Chan * this routine will update SQ driver parameters and ring the doorbell 284cf4e6363SMichael Chan */ 285cf4e6363SMichael Chan static void bnx2i_ring_dbell_update_sq_params(struct bnx2i_conn *bnx2i_conn, 286cf4e6363SMichael Chan int count) 287cf4e6363SMichael Chan { 288cf4e6363SMichael Chan int tmp_cnt; 289cf4e6363SMichael Chan 290cf4e6363SMichael Chan if (count == 1) { 291cf4e6363SMichael Chan if (bnx2i_conn->ep->qp.sq_prod_qe == 292cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_last_qe) 293cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe = 294cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_first_qe; 295cf4e6363SMichael Chan else 296cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe++; 297cf4e6363SMichael Chan } else { 298cf4e6363SMichael Chan if ((bnx2i_conn->ep->qp.sq_prod_qe + count) <= 299cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_last_qe) 300cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe += count; 301cf4e6363SMichael Chan else { 302cf4e6363SMichael Chan tmp_cnt = bnx2i_conn->ep->qp.sq_last_qe - 303cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 304cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe = 305cf4e6363SMichael Chan &bnx2i_conn->ep->qp.sq_first_qe[count - 306cf4e6363SMichael Chan (tmp_cnt + 1)]; 307cf4e6363SMichael Chan } 308cf4e6363SMichael Chan } 309cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_idx += count; 310cf4e6363SMichael Chan /* Ring the doorbell */ 311cf4e6363SMichael Chan bnx2i_ring_sq_dbell(bnx2i_conn, bnx2i_conn->ep->qp.sq_prod_idx); 312cf4e6363SMichael Chan } 313cf4e6363SMichael Chan 314cf4e6363SMichael Chan 315cf4e6363SMichael Chan /** 316cf4e6363SMichael Chan * bnx2i_send_iscsi_login - post iSCSI login request MP WQE to hardware 317cf4e6363SMichael Chan * @conn: iscsi connection 318cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 319cf4e6363SMichael Chan * a WQE to sent to chip for further processing 320cf4e6363SMichael Chan * 321cf4e6363SMichael Chan * prepare and post an iSCSI Login request WQE to CNIC firmware 322cf4e6363SMichael Chan */ 323cf4e6363SMichael Chan int bnx2i_send_iscsi_login(struct bnx2i_conn *bnx2i_conn, 324cf4e6363SMichael Chan struct iscsi_task *task) 325cf4e6363SMichael Chan { 326cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 327cf4e6363SMichael Chan struct bnx2i_login_request *login_wqe; 328cf4e6363SMichael Chan struct iscsi_login *login_hdr; 329cf4e6363SMichael Chan u32 dword; 330cf4e6363SMichael Chan 331cf4e6363SMichael Chan bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; 332cf4e6363SMichael Chan login_hdr = (struct iscsi_login *)task->hdr; 333cf4e6363SMichael Chan login_wqe = (struct bnx2i_login_request *) 334cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 335cf4e6363SMichael Chan 336cf4e6363SMichael Chan login_wqe->op_code = login_hdr->opcode; 337cf4e6363SMichael Chan login_wqe->op_attr = login_hdr->flags; 338cf4e6363SMichael Chan login_wqe->version_max = login_hdr->max_version; 339cf4e6363SMichael Chan login_wqe->version_min = login_hdr->min_version; 340cf4e6363SMichael Chan login_wqe->data_length = ntoh24(login_hdr->dlength); 341cf4e6363SMichael Chan login_wqe->isid_lo = *((u32 *) login_hdr->isid); 342cf4e6363SMichael Chan login_wqe->isid_hi = *((u16 *) login_hdr->isid + 2); 343cf4e6363SMichael Chan login_wqe->tsih = login_hdr->tsih; 344cf4e6363SMichael Chan login_wqe->itt = task->itt | 345cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << ISCSI_LOGIN_REQUEST_TYPE_SHIFT); 346cf4e6363SMichael Chan login_wqe->cid = login_hdr->cid; 347cf4e6363SMichael Chan 348cf4e6363SMichael Chan login_wqe->cmd_sn = be32_to_cpu(login_hdr->cmdsn); 349cf4e6363SMichael Chan login_wqe->exp_stat_sn = be32_to_cpu(login_hdr->exp_statsn); 3502e15efc7SAnil Veerabhadrappa login_wqe->flags = ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN; 351cf4e6363SMichael Chan 352cf4e6363SMichael Chan login_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma; 353cf4e6363SMichael Chan login_wqe->resp_bd_list_addr_hi = 354cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32); 355cf4e6363SMichael Chan 356cf4e6363SMichael Chan dword = ((1 << ISCSI_LOGIN_REQUEST_NUM_RESP_BDS_SHIFT) | 357cf4e6363SMichael Chan (bnx2i_conn->gen_pdu.resp_buf_size << 358cf4e6363SMichael Chan ISCSI_LOGIN_REQUEST_RESP_BUFFER_LENGTH_SHIFT)); 359cf4e6363SMichael Chan login_wqe->resp_buffer = dword; 360cf4e6363SMichael Chan login_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma; 361cf4e6363SMichael Chan login_wqe->bd_list_addr_hi = 362cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32); 363cf4e6363SMichael Chan login_wqe->num_bds = 1; 364cf4e6363SMichael Chan login_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 365cf4e6363SMichael Chan 366cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 367cf4e6363SMichael Chan return 0; 368cf4e6363SMichael Chan } 369cf4e6363SMichael Chan 370cf4e6363SMichael Chan /** 371cf4e6363SMichael Chan * bnx2i_send_iscsi_tmf - post iSCSI task management request MP WQE to hardware 372cf4e6363SMichael Chan * @conn: iscsi connection 373cf4e6363SMichael Chan * @mtask: driver command structure which is requesting 374cf4e6363SMichael Chan * a WQE to sent to chip for further processing 375cf4e6363SMichael Chan * 376cf4e6363SMichael Chan * prepare and post an iSCSI Login request WQE to CNIC firmware 377cf4e6363SMichael Chan */ 378cf4e6363SMichael Chan int bnx2i_send_iscsi_tmf(struct bnx2i_conn *bnx2i_conn, 379cf4e6363SMichael Chan struct iscsi_task *mtask) 380cf4e6363SMichael Chan { 381cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 382cf4e6363SMichael Chan struct iscsi_tm *tmfabort_hdr; 383cf4e6363SMichael Chan struct scsi_cmnd *ref_sc; 384cf4e6363SMichael Chan struct iscsi_task *ctask; 385cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 386cf4e6363SMichael Chan struct bnx2i_tmf_request *tmfabort_wqe; 387cf4e6363SMichael Chan u32 dword; 388cf4e6363SMichael Chan 389cf4e6363SMichael Chan bnx2i_cmd = (struct bnx2i_cmd *)mtask->dd_data; 390cf4e6363SMichael Chan tmfabort_hdr = (struct iscsi_tm *)mtask->hdr; 391cf4e6363SMichael Chan tmfabort_wqe = (struct bnx2i_tmf_request *) 392cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 393cf4e6363SMichael Chan 394cf4e6363SMichael Chan tmfabort_wqe->op_code = tmfabort_hdr->opcode; 395c47b4012SEddie Wai tmfabort_wqe->op_attr = tmfabort_hdr->flags; 396cf4e6363SMichael Chan 397cf4e6363SMichael Chan tmfabort_wqe->itt = (mtask->itt | (ISCSI_TASK_TYPE_MPATH << 14)); 398cf4e6363SMichael Chan tmfabort_wqe->reserved2 = 0; 399cf4e6363SMichael Chan tmfabort_wqe->cmd_sn = be32_to_cpu(tmfabort_hdr->cmdsn); 400cf4e6363SMichael Chan 401c47b4012SEddie Wai switch (tmfabort_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) { 402c47b4012SEddie Wai case ISCSI_TM_FUNC_ABORT_TASK: 403c47b4012SEddie Wai case ISCSI_TM_FUNC_TASK_REASSIGN: 404cf4e6363SMichael Chan ctask = iscsi_itt_to_task(conn, tmfabort_hdr->rtt); 40585fef202SAnil Veerabhadrappa if (!ctask || !ctask->sc) 406cf4e6363SMichael Chan /* 407c47b4012SEddie Wai * the iscsi layer must have completed the cmd while 408cf4e6363SMichael Chan * was starting up. 40985fef202SAnil Veerabhadrappa * 410c47b4012SEddie Wai * Note: In the case of a SCSI cmd timeout, the task's 411c47b4012SEddie Wai * sc is still active; hence ctask->sc != 0 41285fef202SAnil Veerabhadrappa * In this case, the task must be aborted 413cf4e6363SMichael Chan */ 414cf4e6363SMichael Chan return 0; 41585fef202SAnil Veerabhadrappa 416cf4e6363SMichael Chan ref_sc = ctask->sc; 417cf4e6363SMichael Chan if (ref_sc->sc_data_direction == DMA_TO_DEVICE) 418c47b4012SEddie Wai dword = (ISCSI_TASK_TYPE_WRITE << 419c47b4012SEddie Wai ISCSI_CMD_REQUEST_TYPE_SHIFT); 420cf4e6363SMichael Chan else 421c47b4012SEddie Wai dword = (ISCSI_TASK_TYPE_READ << 422c47b4012SEddie Wai ISCSI_CMD_REQUEST_TYPE_SHIFT); 423c47b4012SEddie Wai tmfabort_wqe->ref_itt = (dword | 424c47b4012SEddie Wai (tmfabort_hdr->rtt & ISCSI_ITT_MASK)); 425c47b4012SEddie Wai break; 426c47b4012SEddie Wai default: 427c47b4012SEddie Wai tmfabort_wqe->ref_itt = RESERVED_ITT; 428c47b4012SEddie Wai } 429c47b4012SEddie Wai memcpy(tmfabort_wqe->lun, tmfabort_hdr->lun, sizeof(struct scsi_lun)); 430cf4e6363SMichael Chan tmfabort_wqe->ref_cmd_sn = be32_to_cpu(tmfabort_hdr->refcmdsn); 431cf4e6363SMichael Chan 432cf4e6363SMichael Chan tmfabort_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma; 433cf4e6363SMichael Chan tmfabort_wqe->bd_list_addr_hi = (u32) 434cf4e6363SMichael Chan ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 435cf4e6363SMichael Chan tmfabort_wqe->num_bds = 1; 436cf4e6363SMichael Chan tmfabort_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 437cf4e6363SMichael Chan 438cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 439cf4e6363SMichael Chan return 0; 440cf4e6363SMichael Chan } 441cf4e6363SMichael Chan 442cf4e6363SMichael Chan /** 443cf4e6363SMichael Chan * bnx2i_send_iscsi_scsicmd - post iSCSI scsicmd request WQE to hardware 444cf4e6363SMichael Chan * @conn: iscsi connection 445cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 446cf4e6363SMichael Chan * a WQE to sent to chip for further processing 447cf4e6363SMichael Chan * 448cf4e6363SMichael Chan * prepare and post an iSCSI SCSI-CMD request WQE to CNIC firmware 449cf4e6363SMichael Chan */ 450cf4e6363SMichael Chan int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *bnx2i_conn, 451cf4e6363SMichael Chan struct bnx2i_cmd *cmd) 452cf4e6363SMichael Chan { 453cf4e6363SMichael Chan struct bnx2i_cmd_request *scsi_cmd_wqe; 454cf4e6363SMichael Chan 455cf4e6363SMichael Chan scsi_cmd_wqe = (struct bnx2i_cmd_request *) 456cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 457cf4e6363SMichael Chan memcpy(scsi_cmd_wqe, &cmd->req, sizeof(struct bnx2i_cmd_request)); 458cf4e6363SMichael Chan scsi_cmd_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 459cf4e6363SMichael Chan 460cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 461cf4e6363SMichael Chan return 0; 462cf4e6363SMichael Chan } 463cf4e6363SMichael Chan 464cf4e6363SMichael Chan /** 465cf4e6363SMichael Chan * bnx2i_send_iscsi_nopout - post iSCSI NOPOUT request WQE to hardware 466cf4e6363SMichael Chan * @conn: iscsi connection 467cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 468cf4e6363SMichael Chan * a WQE to sent to chip for further processing 469cf4e6363SMichael Chan * @datap: payload buffer pointer 470cf4e6363SMichael Chan * @data_len: payload data length 471cf4e6363SMichael Chan * @unsol: indicated whether nopout pdu is unsolicited pdu or 472cf4e6363SMichael Chan * in response to target's NOPIN w/ TTT != FFFFFFFF 473cf4e6363SMichael Chan * 474cf4e6363SMichael Chan * prepare and post a nopout request WQE to CNIC firmware 475cf4e6363SMichael Chan */ 476cf4e6363SMichael Chan int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn, 47739304072SEddie Wai struct iscsi_task *task, 478cf4e6363SMichael Chan char *datap, int data_len, int unsol) 479cf4e6363SMichael Chan { 480cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 481cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 482cf4e6363SMichael Chan struct bnx2i_nop_out_request *nopout_wqe; 483cf4e6363SMichael Chan struct iscsi_nopout *nopout_hdr; 484cf4e6363SMichael Chan 485cf4e6363SMichael Chan bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; 486cf4e6363SMichael Chan nopout_hdr = (struct iscsi_nopout *)task->hdr; 487cf4e6363SMichael Chan nopout_wqe = (struct bnx2i_nop_out_request *)ep->qp.sq_prod_qe; 488cf4e6363SMichael Chan nopout_wqe->op_code = nopout_hdr->opcode; 489cf4e6363SMichael Chan nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL; 490cf4e6363SMichael Chan memcpy(nopout_wqe->lun, nopout_hdr->lun, 8); 491cf4e6363SMichael Chan 492cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 493cf4e6363SMichael Chan u32 tmp = nopout_hdr->lun[0]; 494cf4e6363SMichael Chan /* 57710 requires LUN field to be swapped */ 495cf4e6363SMichael Chan nopout_hdr->lun[0] = nopout_hdr->lun[1]; 496cf4e6363SMichael Chan nopout_hdr->lun[1] = tmp; 497cf4e6363SMichael Chan } 498cf4e6363SMichael Chan 499cf4e6363SMichael Chan nopout_wqe->itt = ((u16)task->itt | 500cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << 501cf4e6363SMichael Chan ISCSI_TMF_REQUEST_TYPE_SHIFT)); 50239304072SEddie Wai nopout_wqe->ttt = nopout_hdr->ttt; 503cf4e6363SMichael Chan nopout_wqe->flags = 0; 504cf4e6363SMichael Chan if (!unsol) 505cf4e6363SMichael Chan nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION; 506cf4e6363SMichael Chan else if (nopout_hdr->itt == RESERVED_ITT) 507cf4e6363SMichael Chan nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION; 508cf4e6363SMichael Chan 509cf4e6363SMichael Chan nopout_wqe->cmd_sn = be32_to_cpu(nopout_hdr->cmdsn); 510cf4e6363SMichael Chan nopout_wqe->data_length = data_len; 511cf4e6363SMichael Chan if (data_len) { 512cf4e6363SMichael Chan /* handle payload data, not required in first release */ 513cf4e6363SMichael Chan printk(KERN_ALERT "NOPOUT: WARNING!! payload len != 0\n"); 514cf4e6363SMichael Chan } else { 515cf4e6363SMichael Chan nopout_wqe->bd_list_addr_lo = (u32) 516cf4e6363SMichael Chan bnx2i_conn->hba->mp_bd_dma; 517cf4e6363SMichael Chan nopout_wqe->bd_list_addr_hi = 518cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 519cf4e6363SMichael Chan nopout_wqe->num_bds = 1; 520cf4e6363SMichael Chan } 521cf4e6363SMichael Chan nopout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 522cf4e6363SMichael Chan 523cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 524cf4e6363SMichael Chan return 0; 525cf4e6363SMichael Chan } 526cf4e6363SMichael Chan 527cf4e6363SMichael Chan 528cf4e6363SMichael Chan /** 529cf4e6363SMichael Chan * bnx2i_send_iscsi_logout - post iSCSI logout request WQE to hardware 530cf4e6363SMichael Chan * @conn: iscsi connection 531cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 532cf4e6363SMichael Chan * a WQE to sent to chip for further processing 533cf4e6363SMichael Chan * 534cf4e6363SMichael Chan * prepare and post logout request WQE to CNIC firmware 535cf4e6363SMichael Chan */ 536cf4e6363SMichael Chan int bnx2i_send_iscsi_logout(struct bnx2i_conn *bnx2i_conn, 537cf4e6363SMichael Chan struct iscsi_task *task) 538cf4e6363SMichael Chan { 539cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 540cf4e6363SMichael Chan struct bnx2i_logout_request *logout_wqe; 541cf4e6363SMichael Chan struct iscsi_logout *logout_hdr; 542cf4e6363SMichael Chan 543cf4e6363SMichael Chan bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; 544cf4e6363SMichael Chan logout_hdr = (struct iscsi_logout *)task->hdr; 545cf4e6363SMichael Chan 546cf4e6363SMichael Chan logout_wqe = (struct bnx2i_logout_request *) 547cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 548cf4e6363SMichael Chan memset(logout_wqe, 0x00, sizeof(struct bnx2i_logout_request)); 549cf4e6363SMichael Chan 550cf4e6363SMichael Chan logout_wqe->op_code = logout_hdr->opcode; 551cf4e6363SMichael Chan logout_wqe->cmd_sn = be32_to_cpu(logout_hdr->cmdsn); 552cf4e6363SMichael Chan logout_wqe->op_attr = 553cf4e6363SMichael Chan logout_hdr->flags | ISCSI_LOGOUT_REQUEST_ALWAYS_ONE; 554cf4e6363SMichael Chan logout_wqe->itt = ((u16)task->itt | 555cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << 556cf4e6363SMichael Chan ISCSI_LOGOUT_REQUEST_TYPE_SHIFT)); 557cf4e6363SMichael Chan logout_wqe->data_length = 0; 558cf4e6363SMichael Chan logout_wqe->cid = 0; 559cf4e6363SMichael Chan 560cf4e6363SMichael Chan logout_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma; 561cf4e6363SMichael Chan logout_wqe->bd_list_addr_hi = (u32) 562cf4e6363SMichael Chan ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 563cf4e6363SMichael Chan logout_wqe->num_bds = 1; 564cf4e6363SMichael Chan logout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 565cf4e6363SMichael Chan 5662eefb20dSEddie Wai bnx2i_conn->ep->state = EP_STATE_LOGOUT_SENT; 5672eefb20dSEddie Wai 568cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 569cf4e6363SMichael Chan return 0; 570cf4e6363SMichael Chan } 571cf4e6363SMichael Chan 572cf4e6363SMichael Chan 573cf4e6363SMichael Chan /** 574cf4e6363SMichael Chan * bnx2i_update_iscsi_conn - post iSCSI logout request WQE to hardware 575cf4e6363SMichael Chan * @conn: iscsi connection which requires iscsi parameter update 576cf4e6363SMichael Chan * 577cf4e6363SMichael Chan * sends down iSCSI Conn Update request to move iSCSI conn to FFP 578cf4e6363SMichael Chan */ 579cf4e6363SMichael Chan void bnx2i_update_iscsi_conn(struct iscsi_conn *conn) 580cf4e6363SMichael Chan { 581cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn = conn->dd_data; 582cf4e6363SMichael Chan struct bnx2i_hba *hba = bnx2i_conn->hba; 583cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 584cf4e6363SMichael Chan struct iscsi_kwqe_conn_update *update_wqe; 585cf4e6363SMichael Chan struct iscsi_kwqe_conn_update conn_update_kwqe; 586cf4e6363SMichael Chan 587cf4e6363SMichael Chan update_wqe = &conn_update_kwqe; 588cf4e6363SMichael Chan 589cf4e6363SMichael Chan update_wqe->hdr.op_code = ISCSI_KWQE_OPCODE_UPDATE_CONN; 590cf4e6363SMichael Chan update_wqe->hdr.flags = 591cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 592cf4e6363SMichael Chan 593cf4e6363SMichael Chan /* 5771x requires conn context id to be passed as is */ 594cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &bnx2i_conn->ep->hba->cnic_dev_type)) 595cf4e6363SMichael Chan update_wqe->context_id = bnx2i_conn->ep->ep_cid; 596cf4e6363SMichael Chan else 597cf4e6363SMichael Chan update_wqe->context_id = (bnx2i_conn->ep->ep_cid >> 7); 598cf4e6363SMichael Chan update_wqe->conn_flags = 0; 599cf4e6363SMichael Chan if (conn->hdrdgst_en) 600cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST; 601cf4e6363SMichael Chan if (conn->datadgst_en) 602cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST; 603cf4e6363SMichael Chan if (conn->session->initial_r2t_en) 604cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T; 605cf4e6363SMichael Chan if (conn->session->imm_data_en) 606cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA; 607cf4e6363SMichael Chan 608cf4e6363SMichael Chan update_wqe->max_send_pdu_length = conn->max_xmit_dlength; 609cf4e6363SMichael Chan update_wqe->max_recv_pdu_length = conn->max_recv_dlength; 610cf4e6363SMichael Chan update_wqe->first_burst_length = conn->session->first_burst; 611cf4e6363SMichael Chan update_wqe->max_burst_length = conn->session->max_burst; 612cf4e6363SMichael Chan update_wqe->exp_stat_sn = conn->exp_statsn; 613cf4e6363SMichael Chan update_wqe->max_outstanding_r2ts = conn->session->max_r2t; 614cf4e6363SMichael Chan update_wqe->session_error_recovery_level = conn->session->erl; 615cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, conn, 616cf4e6363SMichael Chan "bnx2i: conn update - MBL 0x%x FBL 0x%x" 617cf4e6363SMichael Chan "MRDSL_I 0x%x MRDSL_T 0x%x \n", 618cf4e6363SMichael Chan update_wqe->max_burst_length, 619cf4e6363SMichael Chan update_wqe->first_burst_length, 620cf4e6363SMichael Chan update_wqe->max_recv_pdu_length, 621cf4e6363SMichael Chan update_wqe->max_send_pdu_length); 622cf4e6363SMichael Chan 623cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) update_wqe; 624cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 625cf4e6363SMichael Chan hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1); 626cf4e6363SMichael Chan } 627cf4e6363SMichael Chan 628cf4e6363SMichael Chan 629cf4e6363SMichael Chan /** 630cf4e6363SMichael Chan * bnx2i_ep_ofld_timer - post iSCSI logout request WQE to hardware 631cf4e6363SMichael Chan * @data: endpoint (transport handle) structure pointer 632cf4e6363SMichael Chan * 633cf4e6363SMichael Chan * routine to handle connection offload/destroy request timeout 634cf4e6363SMichael Chan */ 635cf4e6363SMichael Chan void bnx2i_ep_ofld_timer(unsigned long data) 636cf4e6363SMichael Chan { 637cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) data; 638cf4e6363SMichael Chan 639cf4e6363SMichael Chan if (ep->state == EP_STATE_OFLD_START) { 640cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_OFLD timeout\n"); 641cf4e6363SMichael Chan ep->state = EP_STATE_OFLD_FAILED; 642cf4e6363SMichael Chan } else if (ep->state == EP_STATE_DISCONN_START) { 643cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_DISCON timeout\n"); 644cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_TIMEDOUT; 645cf4e6363SMichael Chan } else if (ep->state == EP_STATE_CLEANUP_START) { 646cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_CLEANUP timeout\n"); 647cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_FAILED; 648cf4e6363SMichael Chan } 649cf4e6363SMichael Chan 650cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 651cf4e6363SMichael Chan } 652cf4e6363SMichael Chan 653cf4e6363SMichael Chan 654cf4e6363SMichael Chan static int bnx2i_power_of2(u32 val) 655cf4e6363SMichael Chan { 656cf4e6363SMichael Chan u32 power = 0; 657cf4e6363SMichael Chan if (val & (val - 1)) 658cf4e6363SMichael Chan return power; 659cf4e6363SMichael Chan val--; 660cf4e6363SMichael Chan while (val) { 661cf4e6363SMichael Chan val = val >> 1; 662cf4e6363SMichael Chan power++; 663cf4e6363SMichael Chan } 664cf4e6363SMichael Chan return power; 665cf4e6363SMichael Chan } 666cf4e6363SMichael Chan 667cf4e6363SMichael Chan 668cf4e6363SMichael Chan /** 669cf4e6363SMichael Chan * bnx2i_send_cmd_cleanup_req - send iscsi cmd context clean-up request 670cf4e6363SMichael Chan * @hba: adapter structure pointer 671cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 672cf4e6363SMichael Chan * a WQE to sent to chip for further processing 673cf4e6363SMichael Chan * 674cf4e6363SMichael Chan * prepares and posts CONN_OFLD_REQ1/2 KWQE 675cf4e6363SMichael Chan */ 676cf4e6363SMichael Chan void bnx2i_send_cmd_cleanup_req(struct bnx2i_hba *hba, struct bnx2i_cmd *cmd) 677cf4e6363SMichael Chan { 678cf4e6363SMichael Chan struct bnx2i_cleanup_request *cmd_cleanup; 679cf4e6363SMichael Chan 680cf4e6363SMichael Chan cmd_cleanup = 681cf4e6363SMichael Chan (struct bnx2i_cleanup_request *)cmd->conn->ep->qp.sq_prod_qe; 682cf4e6363SMichael Chan memset(cmd_cleanup, 0x00, sizeof(struct bnx2i_cleanup_request)); 683cf4e6363SMichael Chan 684cf4e6363SMichael Chan cmd_cleanup->op_code = ISCSI_OPCODE_CLEANUP_REQUEST; 685cf4e6363SMichael Chan cmd_cleanup->itt = cmd->req.itt; 686cf4e6363SMichael Chan cmd_cleanup->cq_index = 0; /* CQ# used for completion, 5771x only */ 687cf4e6363SMichael Chan 688cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(cmd->conn, 1); 689cf4e6363SMichael Chan } 690cf4e6363SMichael Chan 691cf4e6363SMichael Chan 692cf4e6363SMichael Chan /** 693cf4e6363SMichael Chan * bnx2i_send_conn_destroy - initiates iscsi connection teardown process 694cf4e6363SMichael Chan * @hba: adapter structure pointer 695cf4e6363SMichael Chan * @ep: endpoint (transport indentifier) structure 696cf4e6363SMichael Chan * 697cf4e6363SMichael Chan * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE to initiate 698cf4e6363SMichael Chan * iscsi connection context clean-up process 699cf4e6363SMichael Chan */ 700cf4e6363SMichael Chan void bnx2i_send_conn_destroy(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 701cf4e6363SMichael Chan { 702cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 703cf4e6363SMichael Chan struct iscsi_kwqe_conn_destroy conn_cleanup; 704cf4e6363SMichael Chan 705cf4e6363SMichael Chan memset(&conn_cleanup, 0x00, sizeof(struct iscsi_kwqe_conn_destroy)); 706cf4e6363SMichael Chan 707cf4e6363SMichael Chan conn_cleanup.hdr.op_code = ISCSI_KWQE_OPCODE_DESTROY_CONN; 708cf4e6363SMichael Chan conn_cleanup.hdr.flags = 709cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 710cf4e6363SMichael Chan /* 5771x requires conn context id to be passed as is */ 711cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 712cf4e6363SMichael Chan conn_cleanup.context_id = ep->ep_cid; 713cf4e6363SMichael Chan else 714cf4e6363SMichael Chan conn_cleanup.context_id = (ep->ep_cid >> 7); 715cf4e6363SMichael Chan 716cf4e6363SMichael Chan conn_cleanup.reserved0 = (u16)ep->ep_iscsi_cid; 717cf4e6363SMichael Chan 718cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &conn_cleanup; 719cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 720cf4e6363SMichael Chan hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1); 721cf4e6363SMichael Chan } 722cf4e6363SMichael Chan 723cf4e6363SMichael Chan 724cf4e6363SMichael Chan /** 725cf4e6363SMichael Chan * bnx2i_570x_send_conn_ofld_req - initiates iscsi conn context setup process 726cf4e6363SMichael Chan * @hba: adapter structure pointer 727cf4e6363SMichael Chan * @ep: endpoint (transport indentifier) structure 728cf4e6363SMichael Chan * 729cf4e6363SMichael Chan * 5706/5708/5709 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE 730cf4e6363SMichael Chan */ 731cf4e6363SMichael Chan static void bnx2i_570x_send_conn_ofld_req(struct bnx2i_hba *hba, 732cf4e6363SMichael Chan struct bnx2i_endpoint *ep) 733cf4e6363SMichael Chan { 734cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 735cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload1 ofld_req1; 736cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload2 ofld_req2; 737cf4e6363SMichael Chan dma_addr_t dma_addr; 738cf4e6363SMichael Chan int num_kwqes = 2; 739cf4e6363SMichael Chan u32 *ptbl; 740cf4e6363SMichael Chan 741cf4e6363SMichael Chan ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1; 742cf4e6363SMichael Chan ofld_req1.hdr.flags = 743cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 744cf4e6363SMichael Chan 745cf4e6363SMichael Chan ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid; 746cf4e6363SMichael Chan 747cf4e6363SMichael Chan dma_addr = ep->qp.sq_pgtbl_phys; 748cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_lo = (u32) dma_addr; 749cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 750cf4e6363SMichael Chan 751cf4e6363SMichael Chan dma_addr = ep->qp.cq_pgtbl_phys; 752cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_lo = (u32) dma_addr; 753cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 754cf4e6363SMichael Chan 755cf4e6363SMichael Chan ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2; 756cf4e6363SMichael Chan ofld_req2.hdr.flags = 757cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 758cf4e6363SMichael Chan 759cf4e6363SMichael Chan dma_addr = ep->qp.rq_pgtbl_phys; 760cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_lo = (u32) dma_addr; 761cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 762cf4e6363SMichael Chan 763cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.sq_pgtbl_virt; 764cf4e6363SMichael Chan 765cf4e6363SMichael Chan ofld_req2.sq_first_pte.hi = *ptbl++; 766cf4e6363SMichael Chan ofld_req2.sq_first_pte.lo = *ptbl; 767cf4e6363SMichael Chan 768cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.cq_pgtbl_virt; 769cf4e6363SMichael Chan ofld_req2.cq_first_pte.hi = *ptbl++; 770cf4e6363SMichael Chan ofld_req2.cq_first_pte.lo = *ptbl; 771cf4e6363SMichael Chan 772cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &ofld_req1; 773cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &ofld_req2; 774cf4e6363SMichael Chan ofld_req2.num_additional_wqes = 0; 775cf4e6363SMichael Chan 776cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 777cf4e6363SMichael Chan hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 778cf4e6363SMichael Chan } 779cf4e6363SMichael Chan 780cf4e6363SMichael Chan 781cf4e6363SMichael Chan /** 782cf4e6363SMichael Chan * bnx2i_5771x_send_conn_ofld_req - initiates iscsi connection context creation 783cf4e6363SMichael Chan * @hba: adapter structure pointer 784cf4e6363SMichael Chan * @ep: endpoint (transport indentifier) structure 785cf4e6363SMichael Chan * 786cf4e6363SMichael Chan * 57710 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE 787cf4e6363SMichael Chan */ 788cf4e6363SMichael Chan static void bnx2i_5771x_send_conn_ofld_req(struct bnx2i_hba *hba, 789cf4e6363SMichael Chan struct bnx2i_endpoint *ep) 790cf4e6363SMichael Chan { 791cf4e6363SMichael Chan struct kwqe *kwqe_arr[5]; 792cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload1 ofld_req1; 793cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload2 ofld_req2; 794cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload3 ofld_req3[1]; 795cf4e6363SMichael Chan dma_addr_t dma_addr; 796cf4e6363SMichael Chan int num_kwqes = 2; 797cf4e6363SMichael Chan u32 *ptbl; 798cf4e6363SMichael Chan 799cf4e6363SMichael Chan ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1; 800cf4e6363SMichael Chan ofld_req1.hdr.flags = 801cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 802cf4e6363SMichael Chan 803cf4e6363SMichael Chan ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid; 804cf4e6363SMichael Chan 805cf4e6363SMichael Chan dma_addr = ep->qp.sq_pgtbl_phys + ISCSI_SQ_DB_SIZE; 806cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_lo = (u32) dma_addr; 807cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 808cf4e6363SMichael Chan 809cf4e6363SMichael Chan dma_addr = ep->qp.cq_pgtbl_phys + ISCSI_CQ_DB_SIZE; 810cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_lo = (u32) dma_addr; 811cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 812cf4e6363SMichael Chan 813cf4e6363SMichael Chan ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2; 814cf4e6363SMichael Chan ofld_req2.hdr.flags = 815cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 816cf4e6363SMichael Chan 817cf4e6363SMichael Chan dma_addr = ep->qp.rq_pgtbl_phys + ISCSI_RQ_DB_SIZE; 818cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_lo = (u32) dma_addr; 819cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 820cf4e6363SMichael Chan 821cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE); 822cf4e6363SMichael Chan ofld_req2.sq_first_pte.hi = *ptbl++; 823cf4e6363SMichael Chan ofld_req2.sq_first_pte.lo = *ptbl; 824cf4e6363SMichael Chan 825cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE); 826cf4e6363SMichael Chan ofld_req2.cq_first_pte.hi = *ptbl++; 827cf4e6363SMichael Chan ofld_req2.cq_first_pte.lo = *ptbl; 828cf4e6363SMichael Chan 829cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &ofld_req1; 830cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &ofld_req2; 831cf4e6363SMichael Chan 832cf4e6363SMichael Chan ofld_req2.num_additional_wqes = 1; 833cf4e6363SMichael Chan memset(ofld_req3, 0x00, sizeof(ofld_req3[0])); 834cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE); 835cf4e6363SMichael Chan ofld_req3[0].qp_first_pte[0].hi = *ptbl++; 836cf4e6363SMichael Chan ofld_req3[0].qp_first_pte[0].lo = *ptbl; 837cf4e6363SMichael Chan 838cf4e6363SMichael Chan kwqe_arr[2] = (struct kwqe *) ofld_req3; 839cf4e6363SMichael Chan /* need if we decide to go with multiple KCQE's per conn */ 840cf4e6363SMichael Chan num_kwqes += 1; 841cf4e6363SMichael Chan 842cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 843cf4e6363SMichael Chan hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 844cf4e6363SMichael Chan } 845cf4e6363SMichael Chan 846cf4e6363SMichael Chan /** 847cf4e6363SMichael Chan * bnx2i_send_conn_ofld_req - initiates iscsi connection context setup process 848cf4e6363SMichael Chan * 849cf4e6363SMichael Chan * @hba: adapter structure pointer 850cf4e6363SMichael Chan * @ep: endpoint (transport indentifier) structure 851cf4e6363SMichael Chan * 852cf4e6363SMichael Chan * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE 853cf4e6363SMichael Chan */ 854cf4e6363SMichael Chan void bnx2i_send_conn_ofld_req(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 855cf4e6363SMichael Chan { 856cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) 857cf4e6363SMichael Chan bnx2i_5771x_send_conn_ofld_req(hba, ep); 858cf4e6363SMichael Chan else 859cf4e6363SMichael Chan bnx2i_570x_send_conn_ofld_req(hba, ep); 860cf4e6363SMichael Chan } 861cf4e6363SMichael Chan 862cf4e6363SMichael Chan 863cf4e6363SMichael Chan /** 864cf4e6363SMichael Chan * setup_qp_page_tables - iscsi QP page table setup function 865cf4e6363SMichael Chan * @ep: endpoint (transport indentifier) structure 866cf4e6363SMichael Chan * 867cf4e6363SMichael Chan * Sets up page tables for SQ/RQ/CQ, 1G/sec (5706/5708/5709) devices requires 868cf4e6363SMichael Chan * 64-bit address in big endian format. Whereas 10G/sec (57710) requires 869cf4e6363SMichael Chan * PT in little endian format 870cf4e6363SMichael Chan */ 871cf4e6363SMichael Chan static void setup_qp_page_tables(struct bnx2i_endpoint *ep) 872cf4e6363SMichael Chan { 873cf4e6363SMichael Chan int num_pages; 874cf4e6363SMichael Chan u32 *ptbl; 875cf4e6363SMichael Chan dma_addr_t page; 876cf4e6363SMichael Chan int cnic_dev_10g; 877cf4e6363SMichael Chan 878cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 879cf4e6363SMichael Chan cnic_dev_10g = 1; 880cf4e6363SMichael Chan else 881cf4e6363SMichael Chan cnic_dev_10g = 0; 882cf4e6363SMichael Chan 883cf4e6363SMichael Chan /* SQ page table */ 884cf4e6363SMichael Chan memset(ep->qp.sq_pgtbl_virt, 0, ep->qp.sq_pgtbl_size); 885cf4e6363SMichael Chan num_pages = ep->qp.sq_mem_size / PAGE_SIZE; 886cf4e6363SMichael Chan page = ep->qp.sq_phys; 887cf4e6363SMichael Chan 888cf4e6363SMichael Chan if (cnic_dev_10g) 889cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE); 890cf4e6363SMichael Chan else 891cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.sq_pgtbl_virt; 892cf4e6363SMichael Chan while (num_pages--) { 893cf4e6363SMichael Chan if (cnic_dev_10g) { 894cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 895cf4e6363SMichael Chan *ptbl = (u32) page; 896cf4e6363SMichael Chan ptbl++; 897cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 898cf4e6363SMichael Chan ptbl++; 899cf4e6363SMichael Chan page += PAGE_SIZE; 900cf4e6363SMichael Chan } else { 901cf4e6363SMichael Chan /* PTE is written in big endian format for 902cf4e6363SMichael Chan * 5706/5708/5709 devices */ 903cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 904cf4e6363SMichael Chan ptbl++; 905cf4e6363SMichael Chan *ptbl = (u32) page; 906cf4e6363SMichael Chan ptbl++; 907cf4e6363SMichael Chan page += PAGE_SIZE; 908cf4e6363SMichael Chan } 909cf4e6363SMichael Chan } 910cf4e6363SMichael Chan 911cf4e6363SMichael Chan /* RQ page table */ 912cf4e6363SMichael Chan memset(ep->qp.rq_pgtbl_virt, 0, ep->qp.rq_pgtbl_size); 913cf4e6363SMichael Chan num_pages = ep->qp.rq_mem_size / PAGE_SIZE; 914cf4e6363SMichael Chan page = ep->qp.rq_phys; 915cf4e6363SMichael Chan 916cf4e6363SMichael Chan if (cnic_dev_10g) 917cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE); 918cf4e6363SMichael Chan else 919cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.rq_pgtbl_virt; 920cf4e6363SMichael Chan while (num_pages--) { 921cf4e6363SMichael Chan if (cnic_dev_10g) { 922cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 923cf4e6363SMichael Chan *ptbl = (u32) page; 924cf4e6363SMichael Chan ptbl++; 925cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 926cf4e6363SMichael Chan ptbl++; 927cf4e6363SMichael Chan page += PAGE_SIZE; 928cf4e6363SMichael Chan } else { 929cf4e6363SMichael Chan /* PTE is written in big endian format for 930cf4e6363SMichael Chan * 5706/5708/5709 devices */ 931cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 932cf4e6363SMichael Chan ptbl++; 933cf4e6363SMichael Chan *ptbl = (u32) page; 934cf4e6363SMichael Chan ptbl++; 935cf4e6363SMichael Chan page += PAGE_SIZE; 936cf4e6363SMichael Chan } 937cf4e6363SMichael Chan } 938cf4e6363SMichael Chan 939cf4e6363SMichael Chan /* CQ page table */ 940cf4e6363SMichael Chan memset(ep->qp.cq_pgtbl_virt, 0, ep->qp.cq_pgtbl_size); 941cf4e6363SMichael Chan num_pages = ep->qp.cq_mem_size / PAGE_SIZE; 942cf4e6363SMichael Chan page = ep->qp.cq_phys; 943cf4e6363SMichael Chan 944cf4e6363SMichael Chan if (cnic_dev_10g) 945cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE); 946cf4e6363SMichael Chan else 947cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.cq_pgtbl_virt; 948cf4e6363SMichael Chan while (num_pages--) { 949cf4e6363SMichael Chan if (cnic_dev_10g) { 950cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 951cf4e6363SMichael Chan *ptbl = (u32) page; 952cf4e6363SMichael Chan ptbl++; 953cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 954cf4e6363SMichael Chan ptbl++; 955cf4e6363SMichael Chan page += PAGE_SIZE; 956cf4e6363SMichael Chan } else { 957cf4e6363SMichael Chan /* PTE is written in big endian format for 958cf4e6363SMichael Chan * 5706/5708/5709 devices */ 959cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 960cf4e6363SMichael Chan ptbl++; 961cf4e6363SMichael Chan *ptbl = (u32) page; 962cf4e6363SMichael Chan ptbl++; 963cf4e6363SMichael Chan page += PAGE_SIZE; 964cf4e6363SMichael Chan } 965cf4e6363SMichael Chan } 966cf4e6363SMichael Chan } 967cf4e6363SMichael Chan 968cf4e6363SMichael Chan 969cf4e6363SMichael Chan /** 970cf4e6363SMichael Chan * bnx2i_alloc_qp_resc - allocates required resources for QP. 971cf4e6363SMichael Chan * @hba: adapter structure pointer 972cf4e6363SMichael Chan * @ep: endpoint (transport indentifier) structure 973cf4e6363SMichael Chan * 974cf4e6363SMichael Chan * Allocate QP (transport layer for iSCSI connection) resources, DMA'able 975cf4e6363SMichael Chan * memory for SQ/RQ/CQ and page tables. EP structure elements such 976cf4e6363SMichael Chan * as producer/consumer indexes/pointers, queue sizes and page table 977cf4e6363SMichael Chan * contents are setup 978cf4e6363SMichael Chan */ 979cf4e6363SMichael Chan int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 980cf4e6363SMichael Chan { 981cf4e6363SMichael Chan struct bnx2i_5771x_cq_db *cq_db; 982cf4e6363SMichael Chan 983cf4e6363SMichael Chan ep->hba = hba; 984cf4e6363SMichael Chan ep->conn = NULL; 985cf4e6363SMichael Chan ep->ep_cid = ep->ep_iscsi_cid = ep->ep_pg_cid = 0; 986cf4e6363SMichael Chan 987cf4e6363SMichael Chan /* Allocate page table memory for SQ which is page aligned */ 988cf4e6363SMichael Chan ep->qp.sq_mem_size = hba->max_sqes * BNX2I_SQ_WQE_SIZE; 989cf4e6363SMichael Chan ep->qp.sq_mem_size = 990cf4e6363SMichael Chan (ep->qp.sq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK; 991cf4e6363SMichael Chan ep->qp.sq_pgtbl_size = 992cf4e6363SMichael Chan (ep->qp.sq_mem_size / PAGE_SIZE) * sizeof(void *); 993cf4e6363SMichael Chan ep->qp.sq_pgtbl_size = 994cf4e6363SMichael Chan (ep->qp.sq_pgtbl_size + (PAGE_SIZE - 1)) & PAGE_MASK; 995cf4e6363SMichael Chan 996cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt = 997cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size, 998cf4e6363SMichael Chan &ep->qp.sq_pgtbl_phys, GFP_KERNEL); 999cf4e6363SMichael Chan if (!ep->qp.sq_pgtbl_virt) { 1000cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc SQ PT mem (%d)\n", 1001cf4e6363SMichael Chan ep->qp.sq_pgtbl_size); 1002cf4e6363SMichael Chan goto mem_alloc_err; 1003cf4e6363SMichael Chan } 1004cf4e6363SMichael Chan 1005cf4e6363SMichael Chan /* Allocate memory area for actual SQ element */ 1006cf4e6363SMichael Chan ep->qp.sq_virt = 1007cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size, 1008cf4e6363SMichael Chan &ep->qp.sq_phys, GFP_KERNEL); 1009cf4e6363SMichael Chan if (!ep->qp.sq_virt) { 1010cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc SQ BD memory %d\n", 1011cf4e6363SMichael Chan ep->qp.sq_mem_size); 1012cf4e6363SMichael Chan goto mem_alloc_err; 1013cf4e6363SMichael Chan } 1014cf4e6363SMichael Chan 1015cf4e6363SMichael Chan memset(ep->qp.sq_virt, 0x00, ep->qp.sq_mem_size); 1016cf4e6363SMichael Chan ep->qp.sq_first_qe = ep->qp.sq_virt; 1017cf4e6363SMichael Chan ep->qp.sq_prod_qe = ep->qp.sq_first_qe; 1018cf4e6363SMichael Chan ep->qp.sq_cons_qe = ep->qp.sq_first_qe; 1019cf4e6363SMichael Chan ep->qp.sq_last_qe = &ep->qp.sq_first_qe[hba->max_sqes - 1]; 1020cf4e6363SMichael Chan ep->qp.sq_prod_idx = 0; 1021cf4e6363SMichael Chan ep->qp.sq_cons_idx = 0; 1022cf4e6363SMichael Chan ep->qp.sqe_left = hba->max_sqes; 1023cf4e6363SMichael Chan 1024cf4e6363SMichael Chan /* Allocate page table memory for CQ which is page aligned */ 1025cf4e6363SMichael Chan ep->qp.cq_mem_size = hba->max_cqes * BNX2I_CQE_SIZE; 1026cf4e6363SMichael Chan ep->qp.cq_mem_size = 1027cf4e6363SMichael Chan (ep->qp.cq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK; 1028cf4e6363SMichael Chan ep->qp.cq_pgtbl_size = 1029cf4e6363SMichael Chan (ep->qp.cq_mem_size / PAGE_SIZE) * sizeof(void *); 1030cf4e6363SMichael Chan ep->qp.cq_pgtbl_size = 1031cf4e6363SMichael Chan (ep->qp.cq_pgtbl_size + (PAGE_SIZE - 1)) & PAGE_MASK; 1032cf4e6363SMichael Chan 1033cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt = 1034cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size, 1035cf4e6363SMichael Chan &ep->qp.cq_pgtbl_phys, GFP_KERNEL); 1036cf4e6363SMichael Chan if (!ep->qp.cq_pgtbl_virt) { 1037cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc CQ PT memory %d\n", 1038cf4e6363SMichael Chan ep->qp.cq_pgtbl_size); 1039cf4e6363SMichael Chan goto mem_alloc_err; 1040cf4e6363SMichael Chan } 1041cf4e6363SMichael Chan 1042cf4e6363SMichael Chan /* Allocate memory area for actual CQ element */ 1043cf4e6363SMichael Chan ep->qp.cq_virt = 1044cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size, 1045cf4e6363SMichael Chan &ep->qp.cq_phys, GFP_KERNEL); 1046cf4e6363SMichael Chan if (!ep->qp.cq_virt) { 1047cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc CQ BD memory %d\n", 1048cf4e6363SMichael Chan ep->qp.cq_mem_size); 1049cf4e6363SMichael Chan goto mem_alloc_err; 1050cf4e6363SMichael Chan } 1051cf4e6363SMichael Chan memset(ep->qp.cq_virt, 0x00, ep->qp.cq_mem_size); 1052cf4e6363SMichael Chan 1053cf4e6363SMichael Chan ep->qp.cq_first_qe = ep->qp.cq_virt; 1054cf4e6363SMichael Chan ep->qp.cq_prod_qe = ep->qp.cq_first_qe; 1055cf4e6363SMichael Chan ep->qp.cq_cons_qe = ep->qp.cq_first_qe; 1056cf4e6363SMichael Chan ep->qp.cq_last_qe = &ep->qp.cq_first_qe[hba->max_cqes - 1]; 1057cf4e6363SMichael Chan ep->qp.cq_prod_idx = 0; 1058cf4e6363SMichael Chan ep->qp.cq_cons_idx = 0; 1059cf4e6363SMichael Chan ep->qp.cqe_left = hba->max_cqes; 1060cf4e6363SMichael Chan ep->qp.cqe_exp_seq_sn = ISCSI_INITIAL_SN; 1061cf4e6363SMichael Chan ep->qp.cqe_size = hba->max_cqes; 1062cf4e6363SMichael Chan 1063cf4e6363SMichael Chan /* Invalidate all EQ CQE index, req only for 57710 */ 1064cf4e6363SMichael Chan cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt; 1065cf4e6363SMichael Chan memset(cq_db->sqn, 0xFF, sizeof(cq_db->sqn[0]) * BNX2X_MAX_CQS); 1066cf4e6363SMichael Chan 1067cf4e6363SMichael Chan /* Allocate page table memory for RQ which is page aligned */ 1068cf4e6363SMichael Chan ep->qp.rq_mem_size = hba->max_rqes * BNX2I_RQ_WQE_SIZE; 1069cf4e6363SMichael Chan ep->qp.rq_mem_size = 1070cf4e6363SMichael Chan (ep->qp.rq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK; 1071cf4e6363SMichael Chan ep->qp.rq_pgtbl_size = 1072cf4e6363SMichael Chan (ep->qp.rq_mem_size / PAGE_SIZE) * sizeof(void *); 1073cf4e6363SMichael Chan ep->qp.rq_pgtbl_size = 1074cf4e6363SMichael Chan (ep->qp.rq_pgtbl_size + (PAGE_SIZE - 1)) & PAGE_MASK; 1075cf4e6363SMichael Chan 1076cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt = 1077cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size, 1078cf4e6363SMichael Chan &ep->qp.rq_pgtbl_phys, GFP_KERNEL); 1079cf4e6363SMichael Chan if (!ep->qp.rq_pgtbl_virt) { 1080cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc RQ PT mem %d\n", 1081cf4e6363SMichael Chan ep->qp.rq_pgtbl_size); 1082cf4e6363SMichael Chan goto mem_alloc_err; 1083cf4e6363SMichael Chan } 1084cf4e6363SMichael Chan 1085cf4e6363SMichael Chan /* Allocate memory area for actual RQ element */ 1086cf4e6363SMichael Chan ep->qp.rq_virt = 1087cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size, 1088cf4e6363SMichael Chan &ep->qp.rq_phys, GFP_KERNEL); 1089cf4e6363SMichael Chan if (!ep->qp.rq_virt) { 1090cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc RQ BD memory %d\n", 1091cf4e6363SMichael Chan ep->qp.rq_mem_size); 1092cf4e6363SMichael Chan goto mem_alloc_err; 1093cf4e6363SMichael Chan } 1094cf4e6363SMichael Chan 1095cf4e6363SMichael Chan ep->qp.rq_first_qe = ep->qp.rq_virt; 1096cf4e6363SMichael Chan ep->qp.rq_prod_qe = ep->qp.rq_first_qe; 1097cf4e6363SMichael Chan ep->qp.rq_cons_qe = ep->qp.rq_first_qe; 1098cf4e6363SMichael Chan ep->qp.rq_last_qe = &ep->qp.rq_first_qe[hba->max_rqes - 1]; 1099cf4e6363SMichael Chan ep->qp.rq_prod_idx = 0x8000; 1100cf4e6363SMichael Chan ep->qp.rq_cons_idx = 0; 1101cf4e6363SMichael Chan ep->qp.rqe_left = hba->max_rqes; 1102cf4e6363SMichael Chan 1103cf4e6363SMichael Chan setup_qp_page_tables(ep); 1104cf4e6363SMichael Chan 1105cf4e6363SMichael Chan return 0; 1106cf4e6363SMichael Chan 1107cf4e6363SMichael Chan mem_alloc_err: 1108cf4e6363SMichael Chan bnx2i_free_qp_resc(hba, ep); 1109cf4e6363SMichael Chan return -ENOMEM; 1110cf4e6363SMichael Chan } 1111cf4e6363SMichael Chan 1112cf4e6363SMichael Chan 1113cf4e6363SMichael Chan 1114cf4e6363SMichael Chan /** 1115cf4e6363SMichael Chan * bnx2i_free_qp_resc - free memory resources held by QP 1116cf4e6363SMichael Chan * @hba: adapter structure pointer 1117cf4e6363SMichael Chan * @ep: endpoint (transport indentifier) structure 1118cf4e6363SMichael Chan * 1119cf4e6363SMichael Chan * Free QP resources - SQ/RQ/CQ memory and page tables. 1120cf4e6363SMichael Chan */ 1121cf4e6363SMichael Chan void bnx2i_free_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 1122cf4e6363SMichael Chan { 1123cf4e6363SMichael Chan if (ep->qp.ctx_base) { 1124cf4e6363SMichael Chan iounmap(ep->qp.ctx_base); 1125cf4e6363SMichael Chan ep->qp.ctx_base = NULL; 1126cf4e6363SMichael Chan } 1127cf4e6363SMichael Chan /* Free SQ mem */ 1128cf4e6363SMichael Chan if (ep->qp.sq_pgtbl_virt) { 1129cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size, 1130cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt, ep->qp.sq_pgtbl_phys); 1131cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt = NULL; 1132cf4e6363SMichael Chan ep->qp.sq_pgtbl_phys = 0; 1133cf4e6363SMichael Chan } 1134cf4e6363SMichael Chan if (ep->qp.sq_virt) { 1135cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size, 1136cf4e6363SMichael Chan ep->qp.sq_virt, ep->qp.sq_phys); 1137cf4e6363SMichael Chan ep->qp.sq_virt = NULL; 1138cf4e6363SMichael Chan ep->qp.sq_phys = 0; 1139cf4e6363SMichael Chan } 1140cf4e6363SMichael Chan 1141cf4e6363SMichael Chan /* Free RQ mem */ 1142cf4e6363SMichael Chan if (ep->qp.rq_pgtbl_virt) { 1143cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size, 1144cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt, ep->qp.rq_pgtbl_phys); 1145cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt = NULL; 1146cf4e6363SMichael Chan ep->qp.rq_pgtbl_phys = 0; 1147cf4e6363SMichael Chan } 1148cf4e6363SMichael Chan if (ep->qp.rq_virt) { 1149cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size, 1150cf4e6363SMichael Chan ep->qp.rq_virt, ep->qp.rq_phys); 1151cf4e6363SMichael Chan ep->qp.rq_virt = NULL; 1152cf4e6363SMichael Chan ep->qp.rq_phys = 0; 1153cf4e6363SMichael Chan } 1154cf4e6363SMichael Chan 1155cf4e6363SMichael Chan /* Free CQ mem */ 1156cf4e6363SMichael Chan if (ep->qp.cq_pgtbl_virt) { 1157cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size, 1158cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt, ep->qp.cq_pgtbl_phys); 1159cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt = NULL; 1160cf4e6363SMichael Chan ep->qp.cq_pgtbl_phys = 0; 1161cf4e6363SMichael Chan } 1162cf4e6363SMichael Chan if (ep->qp.cq_virt) { 1163cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size, 1164cf4e6363SMichael Chan ep->qp.cq_virt, ep->qp.cq_phys); 1165cf4e6363SMichael Chan ep->qp.cq_virt = NULL; 1166cf4e6363SMichael Chan ep->qp.cq_phys = 0; 1167cf4e6363SMichael Chan } 1168cf4e6363SMichael Chan } 1169cf4e6363SMichael Chan 1170cf4e6363SMichael Chan 1171cf4e6363SMichael Chan /** 1172cf4e6363SMichael Chan * bnx2i_send_fw_iscsi_init_msg - initiates initial handshake with iscsi f/w 1173cf4e6363SMichael Chan * @hba: adapter structure pointer 1174cf4e6363SMichael Chan * 1175cf4e6363SMichael Chan * Send down iscsi_init KWQEs which initiates the initial handshake with the f/w 1176cf4e6363SMichael Chan * This results in iSCSi support validation and on-chip context manager 1177cf4e6363SMichael Chan * initialization. Firmware completes this handshake with a CQE carrying 1178cf4e6363SMichael Chan * the result of iscsi support validation. Parameter carried by 1179cf4e6363SMichael Chan * iscsi init request determines the number of offloaded connection and 1180cf4e6363SMichael Chan * tolerance level for iscsi protocol violation this hba/chip can support 1181cf4e6363SMichael Chan */ 1182cf4e6363SMichael Chan int bnx2i_send_fw_iscsi_init_msg(struct bnx2i_hba *hba) 1183cf4e6363SMichael Chan { 1184cf4e6363SMichael Chan struct kwqe *kwqe_arr[3]; 1185cf4e6363SMichael Chan struct iscsi_kwqe_init1 iscsi_init; 1186cf4e6363SMichael Chan struct iscsi_kwqe_init2 iscsi_init2; 1187cf4e6363SMichael Chan int rc = 0; 1188cf4e6363SMichael Chan u64 mask64; 1189cf4e6363SMichael Chan 1190cf4e6363SMichael Chan bnx2i_adjust_qp_size(hba); 1191cf4e6363SMichael Chan 1192cf4e6363SMichael Chan iscsi_init.flags = 1193cf4e6363SMichael Chan ISCSI_PAGE_SIZE_4K << ISCSI_KWQE_INIT1_PAGE_SIZE_SHIFT; 1194cf4e6363SMichael Chan if (en_tcp_dack) 1195cf4e6363SMichael Chan iscsi_init.flags |= ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE; 1196cf4e6363SMichael Chan iscsi_init.reserved0 = 0; 1197cf4e6363SMichael Chan iscsi_init.num_cqs = 1; 1198cf4e6363SMichael Chan iscsi_init.hdr.op_code = ISCSI_KWQE_OPCODE_INIT1; 1199cf4e6363SMichael Chan iscsi_init.hdr.flags = 1200cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 1201cf4e6363SMichael Chan 1202cf4e6363SMichael Chan iscsi_init.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma; 1203cf4e6363SMichael Chan iscsi_init.dummy_buffer_addr_hi = 1204cf4e6363SMichael Chan (u32) ((u64) hba->dummy_buf_dma >> 32); 1205cf4e6363SMichael Chan 1206cf4e6363SMichael Chan hba->ctx_ccell_tasks = 1207cf4e6363SMichael Chan ((hba->num_ccell & 0xFFFF) | (hba->max_sqes << 16)); 1208cf4e6363SMichael Chan iscsi_init.num_ccells_per_conn = hba->num_ccell; 1209cf4e6363SMichael Chan iscsi_init.num_tasks_per_conn = hba->max_sqes; 1210cf4e6363SMichael Chan iscsi_init.sq_wqes_per_page = PAGE_SIZE / BNX2I_SQ_WQE_SIZE; 1211cf4e6363SMichael Chan iscsi_init.sq_num_wqes = hba->max_sqes; 1212cf4e6363SMichael Chan iscsi_init.cq_log_wqes_per_page = 1213cf4e6363SMichael Chan (u8) bnx2i_power_of2(PAGE_SIZE / BNX2I_CQE_SIZE); 1214cf4e6363SMichael Chan iscsi_init.cq_num_wqes = hba->max_cqes; 1215cf4e6363SMichael Chan iscsi_init.cq_num_pages = (hba->max_cqes * BNX2I_CQE_SIZE + 1216cf4e6363SMichael Chan (PAGE_SIZE - 1)) / PAGE_SIZE; 1217cf4e6363SMichael Chan iscsi_init.sq_num_pages = (hba->max_sqes * BNX2I_SQ_WQE_SIZE + 1218cf4e6363SMichael Chan (PAGE_SIZE - 1)) / PAGE_SIZE; 1219cf4e6363SMichael Chan iscsi_init.rq_buffer_size = BNX2I_RQ_WQE_SIZE; 1220cf4e6363SMichael Chan iscsi_init.rq_num_wqes = hba->max_rqes; 1221cf4e6363SMichael Chan 1222cf4e6363SMichael Chan 1223cf4e6363SMichael Chan iscsi_init2.hdr.op_code = ISCSI_KWQE_OPCODE_INIT2; 1224cf4e6363SMichael Chan iscsi_init2.hdr.flags = 1225cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 1226cf4e6363SMichael Chan iscsi_init2.max_cq_sqn = hba->max_cqes * 2 + 1; 1227cf4e6363SMichael Chan mask64 = 0x0ULL; 1228cf4e6363SMichael Chan mask64 |= ( 1229cf4e6363SMichael Chan /* CISCO MDS */ 1230cf4e6363SMichael Chan (1UL << 1231cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV) | 1232cf4e6363SMichael Chan /* HP MSA1510i */ 1233cf4e6363SMichael Chan (1UL << 1234cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN) | 1235cf4e6363SMichael Chan /* EMC */ 1236cf4e6363SMichael Chan (1ULL << ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN)); 1237cf4e6363SMichael Chan if (error_mask1) 1238cf4e6363SMichael Chan iscsi_init2.error_bit_map[0] = error_mask1; 1239cf4e6363SMichael Chan else 1240cf4e6363SMichael Chan iscsi_init2.error_bit_map[0] = (u32) mask64; 1241cf4e6363SMichael Chan 1242cf4e6363SMichael Chan if (error_mask2) 1243cf4e6363SMichael Chan iscsi_init2.error_bit_map[1] = error_mask2; 1244cf4e6363SMichael Chan else 1245cf4e6363SMichael Chan iscsi_init2.error_bit_map[1] = (u32) (mask64 >> 32); 1246cf4e6363SMichael Chan 1247cf4e6363SMichael Chan iscsi_error_mask = mask64; 1248cf4e6363SMichael Chan 1249cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &iscsi_init; 1250cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &iscsi_init2; 1251cf4e6363SMichael Chan 1252cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 1253cf4e6363SMichael Chan rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 2); 1254cf4e6363SMichael Chan return rc; 1255cf4e6363SMichael Chan } 1256cf4e6363SMichael Chan 1257cf4e6363SMichael Chan 1258cf4e6363SMichael Chan /** 1259cf4e6363SMichael Chan * bnx2i_process_scsi_cmd_resp - this function handles scsi cmd completion. 1260cf4e6363SMichael Chan * @conn: iscsi connection 1261cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1262cf4e6363SMichael Chan * 1263cf4e6363SMichael Chan * process SCSI CMD Response CQE & complete the request to SCSI-ML 1264cf4e6363SMichael Chan */ 1265cf4e6363SMichael Chan static int bnx2i_process_scsi_cmd_resp(struct iscsi_session *session, 1266cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1267cf4e6363SMichael Chan struct cqe *cqe) 1268cf4e6363SMichael Chan { 1269cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1270cf4e6363SMichael Chan struct bnx2i_cmd_response *resp_cqe; 1271cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 1272cf4e6363SMichael Chan struct iscsi_task *task; 1273cf4e6363SMichael Chan struct iscsi_cmd_rsp *hdr; 1274cf4e6363SMichael Chan u32 datalen = 0; 1275cf4e6363SMichael Chan 1276cf4e6363SMichael Chan resp_cqe = (struct bnx2i_cmd_response *)cqe; 1277cf4e6363SMichael Chan spin_lock(&session->lock); 1278cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1279cf4e6363SMichael Chan resp_cqe->itt & ISCSI_CMD_RESPONSE_INDEX); 1280cf4e6363SMichael Chan if (!task) 1281cf4e6363SMichael Chan goto fail; 1282cf4e6363SMichael Chan 1283cf4e6363SMichael Chan bnx2i_cmd = task->dd_data; 1284cf4e6363SMichael Chan 1285cf4e6363SMichael Chan if (bnx2i_cmd->req.op_attr & ISCSI_CMD_REQUEST_READ) { 1286cf4e6363SMichael Chan conn->datain_pdus_cnt += 1287cf4e6363SMichael Chan resp_cqe->task_stat.read_stat.num_data_outs; 1288cf4e6363SMichael Chan conn->rxdata_octets += 1289cf4e6363SMichael Chan bnx2i_cmd->req.total_data_transfer_length; 1290cf4e6363SMichael Chan } else { 1291cf4e6363SMichael Chan conn->dataout_pdus_cnt += 1292cf4e6363SMichael Chan resp_cqe->task_stat.read_stat.num_data_outs; 1293cf4e6363SMichael Chan conn->r2t_pdus_cnt += 1294cf4e6363SMichael Chan resp_cqe->task_stat.read_stat.num_r2ts; 1295cf4e6363SMichael Chan conn->txdata_octets += 1296cf4e6363SMichael Chan bnx2i_cmd->req.total_data_transfer_length; 1297cf4e6363SMichael Chan } 1298cf4e6363SMichael Chan bnx2i_iscsi_unmap_sg_list(bnx2i_cmd); 1299cf4e6363SMichael Chan 1300cf4e6363SMichael Chan hdr = (struct iscsi_cmd_rsp *)task->hdr; 1301cf4e6363SMichael Chan resp_cqe = (struct bnx2i_cmd_response *)cqe; 1302cf4e6363SMichael Chan hdr->opcode = resp_cqe->op_code; 1303cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(resp_cqe->max_cmd_sn); 1304cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(resp_cqe->exp_cmd_sn); 1305cf4e6363SMichael Chan hdr->response = resp_cqe->response; 1306cf4e6363SMichael Chan hdr->cmd_status = resp_cqe->status; 1307cf4e6363SMichael Chan hdr->flags = resp_cqe->response_flags; 1308cf4e6363SMichael Chan hdr->residual_count = cpu_to_be32(resp_cqe->residual_count); 1309cf4e6363SMichael Chan 1310cf4e6363SMichael Chan if (resp_cqe->op_code == ISCSI_OP_SCSI_DATA_IN) 1311cf4e6363SMichael Chan goto done; 1312cf4e6363SMichael Chan 1313cf4e6363SMichael Chan if (resp_cqe->status == SAM_STAT_CHECK_CONDITION) { 1314cf4e6363SMichael Chan datalen = resp_cqe->data_length; 1315cf4e6363SMichael Chan if (datalen < 2) 1316cf4e6363SMichael Chan goto done; 1317cf4e6363SMichael Chan 1318cf4e6363SMichael Chan if (datalen > BNX2I_RQ_WQE_SIZE) { 1319cf4e6363SMichael Chan iscsi_conn_printk(KERN_ERR, conn, 1320cf4e6363SMichael Chan "sense data len %d > RQ sz\n", 1321cf4e6363SMichael Chan datalen); 1322cf4e6363SMichael Chan datalen = BNX2I_RQ_WQE_SIZE; 1323cf4e6363SMichael Chan } else if (datalen > ISCSI_DEF_MAX_RECV_SEG_LEN) { 1324cf4e6363SMichael Chan iscsi_conn_printk(KERN_ERR, conn, 1325cf4e6363SMichael Chan "sense data len %d > conn data\n", 1326cf4e6363SMichael Chan datalen); 1327cf4e6363SMichael Chan datalen = ISCSI_DEF_MAX_RECV_SEG_LEN; 1328cf4e6363SMichael Chan } 1329cf4e6363SMichael Chan 1330cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_cmd->conn, conn->data, datalen); 1331cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_cmd->conn, 1); 1332cf4e6363SMichael Chan } 1333cf4e6363SMichael Chan 1334cf4e6363SMichael Chan done: 1335cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, 1336cf4e6363SMichael Chan conn->data, datalen); 1337cf4e6363SMichael Chan fail: 1338cf4e6363SMichael Chan spin_unlock(&session->lock); 1339cf4e6363SMichael Chan return 0; 1340cf4e6363SMichael Chan } 1341cf4e6363SMichael Chan 1342cf4e6363SMichael Chan 1343cf4e6363SMichael Chan /** 1344cf4e6363SMichael Chan * bnx2i_process_login_resp - this function handles iscsi login response 1345cf4e6363SMichael Chan * @session: iscsi session pointer 1346cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1347cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1348cf4e6363SMichael Chan * 1349cf4e6363SMichael Chan * process Login Response CQE & complete it to open-iscsi user daemon 1350cf4e6363SMichael Chan */ 1351cf4e6363SMichael Chan static int bnx2i_process_login_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; 1356cf4e6363SMichael Chan struct iscsi_task *task; 1357cf4e6363SMichael Chan struct bnx2i_login_response *login; 1358cf4e6363SMichael Chan struct iscsi_login_rsp *resp_hdr; 1359cf4e6363SMichael Chan int pld_len; 1360cf4e6363SMichael Chan int pad_len; 1361cf4e6363SMichael Chan 1362cf4e6363SMichael Chan login = (struct bnx2i_login_response *) cqe; 1363cf4e6363SMichael Chan spin_lock(&session->lock); 1364cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1365cf4e6363SMichael Chan login->itt & ISCSI_LOGIN_RESPONSE_INDEX); 1366cf4e6363SMichael Chan if (!task) 1367cf4e6363SMichael Chan goto done; 1368cf4e6363SMichael Chan 1369cf4e6363SMichael Chan resp_hdr = (struct iscsi_login_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1370cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1371cf4e6363SMichael Chan resp_hdr->opcode = login->op_code; 1372cf4e6363SMichael Chan resp_hdr->flags = login->response_flags; 1373cf4e6363SMichael Chan resp_hdr->max_version = login->version_max; 1374a419aef8SJoe Perches resp_hdr->active_version = login->version_active; 1375cf4e6363SMichael Chan resp_hdr->hlength = 0; 1376cf4e6363SMichael Chan 1377cf4e6363SMichael Chan hton24(resp_hdr->dlength, login->data_length); 1378cf4e6363SMichael Chan memcpy(resp_hdr->isid, &login->isid_lo, 6); 1379cf4e6363SMichael Chan resp_hdr->tsih = cpu_to_be16(login->tsih); 1380cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1381cf4e6363SMichael Chan resp_hdr->statsn = cpu_to_be32(login->stat_sn); 1382cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(login->exp_cmd_sn); 1383cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(login->max_cmd_sn); 1384cf4e6363SMichael Chan resp_hdr->status_class = login->status_class; 1385cf4e6363SMichael Chan resp_hdr->status_detail = login->status_detail; 1386cf4e6363SMichael Chan pld_len = login->data_length; 1387cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr = 1388cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_buf + pld_len; 1389cf4e6363SMichael Chan 1390cf4e6363SMichael Chan pad_len = 0; 1391cf4e6363SMichael Chan if (pld_len & 0x3) 1392cf4e6363SMichael Chan pad_len = 4 - (pld_len % 4); 1393cf4e6363SMichael Chan 1394cf4e6363SMichael Chan if (pad_len) { 1395cf4e6363SMichael Chan int i = 0; 1396cf4e6363SMichael Chan for (i = 0; i < pad_len; i++) { 1397cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0; 1398cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr++; 1399cf4e6363SMichael Chan } 1400cf4e6363SMichael Chan } 1401cf4e6363SMichael Chan 1402cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, 1403cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_buf, 1404cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr - bnx2i_conn->gen_pdu.resp_buf); 1405cf4e6363SMichael Chan done: 1406cf4e6363SMichael Chan spin_unlock(&session->lock); 1407cf4e6363SMichael Chan return 0; 1408cf4e6363SMichael Chan } 1409cf4e6363SMichael Chan 1410cf4e6363SMichael Chan /** 1411cf4e6363SMichael Chan * bnx2i_process_tmf_resp - this function handles iscsi TMF response 1412cf4e6363SMichael Chan * @session: iscsi session pointer 1413cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1414cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1415cf4e6363SMichael Chan * 1416cf4e6363SMichael Chan * process iSCSI TMF Response CQE and wake up the driver eh thread. 1417cf4e6363SMichael Chan */ 1418cf4e6363SMichael Chan static int bnx2i_process_tmf_resp(struct iscsi_session *session, 1419cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1420cf4e6363SMichael Chan struct cqe *cqe) 1421cf4e6363SMichael Chan { 1422cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1423cf4e6363SMichael Chan struct iscsi_task *task; 1424cf4e6363SMichael Chan struct bnx2i_tmf_response *tmf_cqe; 1425cf4e6363SMichael Chan struct iscsi_tm_rsp *resp_hdr; 1426cf4e6363SMichael Chan 1427cf4e6363SMichael Chan tmf_cqe = (struct bnx2i_tmf_response *)cqe; 1428cf4e6363SMichael Chan spin_lock(&session->lock); 1429cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1430cf4e6363SMichael Chan tmf_cqe->itt & ISCSI_TMF_RESPONSE_INDEX); 1431cf4e6363SMichael Chan if (!task) 1432cf4e6363SMichael Chan goto done; 1433cf4e6363SMichael Chan 1434cf4e6363SMichael Chan resp_hdr = (struct iscsi_tm_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1435cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1436cf4e6363SMichael Chan resp_hdr->opcode = tmf_cqe->op_code; 1437cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(tmf_cqe->max_cmd_sn); 1438cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(tmf_cqe->exp_cmd_sn); 1439cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1440cf4e6363SMichael Chan resp_hdr->response = tmf_cqe->response; 1441cf4e6363SMichael Chan 1442cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0); 1443cf4e6363SMichael Chan done: 1444cf4e6363SMichael Chan spin_unlock(&session->lock); 1445cf4e6363SMichael Chan return 0; 1446cf4e6363SMichael Chan } 1447cf4e6363SMichael Chan 1448cf4e6363SMichael Chan /** 1449cf4e6363SMichael Chan * bnx2i_process_logout_resp - this function handles iscsi logout response 1450cf4e6363SMichael Chan * @session: iscsi session pointer 1451cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1452cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1453cf4e6363SMichael Chan * 1454cf4e6363SMichael Chan * process iSCSI Logout Response CQE & make function call to 1455cf4e6363SMichael Chan * notify the user daemon. 1456cf4e6363SMichael Chan */ 1457cf4e6363SMichael Chan static int bnx2i_process_logout_resp(struct iscsi_session *session, 1458cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1459cf4e6363SMichael Chan struct cqe *cqe) 1460cf4e6363SMichael Chan { 1461cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1462cf4e6363SMichael Chan struct iscsi_task *task; 1463cf4e6363SMichael Chan struct bnx2i_logout_response *logout; 1464cf4e6363SMichael Chan struct iscsi_logout_rsp *resp_hdr; 1465cf4e6363SMichael Chan 1466cf4e6363SMichael Chan logout = (struct bnx2i_logout_response *) cqe; 1467cf4e6363SMichael Chan spin_lock(&session->lock); 1468cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1469cf4e6363SMichael Chan logout->itt & ISCSI_LOGOUT_RESPONSE_INDEX); 1470cf4e6363SMichael Chan if (!task) 1471cf4e6363SMichael Chan goto done; 1472cf4e6363SMichael Chan 1473cf4e6363SMichael Chan resp_hdr = (struct iscsi_logout_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1474cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1475cf4e6363SMichael Chan resp_hdr->opcode = logout->op_code; 1476cf4e6363SMichael Chan resp_hdr->flags = logout->response; 1477cf4e6363SMichael Chan resp_hdr->hlength = 0; 1478cf4e6363SMichael Chan 1479cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1480cf4e6363SMichael Chan resp_hdr->statsn = task->hdr->exp_statsn; 1481cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(logout->exp_cmd_sn); 1482cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(logout->max_cmd_sn); 1483cf4e6363SMichael Chan 1484cf4e6363SMichael Chan resp_hdr->t2wait = cpu_to_be32(logout->time_to_wait); 1485cf4e6363SMichael Chan resp_hdr->t2retain = cpu_to_be32(logout->time_to_retain); 1486cf4e6363SMichael Chan 1487cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0); 14882eefb20dSEddie Wai 14892eefb20dSEddie Wai bnx2i_conn->ep->state = EP_STATE_LOGOUT_RESP_RCVD; 1490cf4e6363SMichael Chan done: 1491cf4e6363SMichael Chan spin_unlock(&session->lock); 1492cf4e6363SMichael Chan return 0; 1493cf4e6363SMichael Chan } 1494cf4e6363SMichael Chan 1495cf4e6363SMichael Chan /** 1496cf4e6363SMichael Chan * bnx2i_process_nopin_local_cmpl - this function handles iscsi nopin CQE 1497cf4e6363SMichael Chan * @session: iscsi session pointer 1498cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1499cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1500cf4e6363SMichael Chan * 1501cf4e6363SMichael Chan * process iSCSI NOPIN local completion CQE, frees IIT and command structures 1502cf4e6363SMichael Chan */ 1503cf4e6363SMichael Chan static void bnx2i_process_nopin_local_cmpl(struct iscsi_session *session, 1504cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1505cf4e6363SMichael Chan struct cqe *cqe) 1506cf4e6363SMichael Chan { 1507cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1508cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nop_in; 1509cf4e6363SMichael Chan struct iscsi_task *task; 1510cf4e6363SMichael Chan 1511cf4e6363SMichael Chan nop_in = (struct bnx2i_nop_in_msg *)cqe; 1512cf4e6363SMichael Chan spin_lock(&session->lock); 1513cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1514cf4e6363SMichael Chan nop_in->itt & ISCSI_NOP_IN_MSG_INDEX); 1515cf4e6363SMichael Chan if (task) 1516cf4e6363SMichael Chan iscsi_put_task(task); 1517cf4e6363SMichael Chan spin_unlock(&session->lock); 1518cf4e6363SMichael Chan } 1519cf4e6363SMichael Chan 1520cf4e6363SMichael Chan /** 1521cf4e6363SMichael Chan * bnx2i_unsol_pdu_adjust_rq - makes adjustments to RQ after unsol pdu is recvd 1522cf4e6363SMichael Chan * @conn: iscsi connection 1523cf4e6363SMichael Chan * 1524cf4e6363SMichael Chan * Firmware advances RQ producer index for every unsolicited PDU even if 1525cf4e6363SMichael Chan * payload data length is '0'. This function makes corresponding 1526cf4e6363SMichael Chan * adjustments on the driver side to match this f/w behavior 1527cf4e6363SMichael Chan */ 1528cf4e6363SMichael Chan static void bnx2i_unsol_pdu_adjust_rq(struct bnx2i_conn *bnx2i_conn) 1529cf4e6363SMichael Chan { 1530cf4e6363SMichael Chan char dummy_rq_data[2]; 1531cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_conn, dummy_rq_data, 1); 1532cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_conn, 1); 1533cf4e6363SMichael Chan } 1534cf4e6363SMichael Chan 1535cf4e6363SMichael Chan 1536cf4e6363SMichael Chan /** 1537cf4e6363SMichael Chan * bnx2i_process_nopin_mesg - this function handles iscsi nopin CQE 1538cf4e6363SMichael Chan * @session: iscsi session pointer 1539cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1540cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1541cf4e6363SMichael Chan * 1542cf4e6363SMichael Chan * process iSCSI target's proactive iSCSI NOPIN request 1543cf4e6363SMichael Chan */ 1544cf4e6363SMichael Chan static int bnx2i_process_nopin_mesg(struct iscsi_session *session, 1545cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1546cf4e6363SMichael Chan struct cqe *cqe) 1547cf4e6363SMichael Chan { 1548cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1549cf4e6363SMichael Chan struct iscsi_task *task; 1550cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nop_in; 1551cf4e6363SMichael Chan struct iscsi_nopin *hdr; 1552cf4e6363SMichael Chan int tgt_async_nop = 0; 1553cf4e6363SMichael Chan 1554cf4e6363SMichael Chan nop_in = (struct bnx2i_nop_in_msg *)cqe; 1555cf4e6363SMichael Chan 1556cf4e6363SMichael Chan spin_lock(&session->lock); 1557cf4e6363SMichael Chan hdr = (struct iscsi_nopin *)&bnx2i_conn->gen_pdu.resp_hdr; 1558cf4e6363SMichael Chan memset(hdr, 0, sizeof(struct iscsi_hdr)); 1559cf4e6363SMichael Chan hdr->opcode = nop_in->op_code; 1560cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(nop_in->max_cmd_sn); 1561cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(nop_in->exp_cmd_sn); 1562cf4e6363SMichael Chan hdr->ttt = cpu_to_be32(nop_in->ttt); 1563cf4e6363SMichael Chan 15645ee32576SEddie Wai if (nop_in->itt == (u16) RESERVED_ITT) { 1565cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1566cf4e6363SMichael Chan hdr->itt = RESERVED_ITT; 1567cf4e6363SMichael Chan tgt_async_nop = 1; 1568cf4e6363SMichael Chan goto done; 1569cf4e6363SMichael Chan } 1570cf4e6363SMichael Chan 1571cf4e6363SMichael Chan /* this is a response to one of our nop-outs */ 15725ee32576SEddie Wai task = iscsi_itt_to_task(conn, 15735ee32576SEddie Wai (itt_t) (nop_in->itt & ISCSI_NOP_IN_MSG_INDEX)); 1574cf4e6363SMichael Chan if (task) { 1575cf4e6363SMichael Chan hdr->flags = ISCSI_FLAG_CMD_FINAL; 1576cf4e6363SMichael Chan hdr->itt = task->hdr->itt; 1577cf4e6363SMichael Chan hdr->ttt = cpu_to_be32(nop_in->ttt); 1578cf4e6363SMichael Chan memcpy(hdr->lun, nop_in->lun, 8); 1579cf4e6363SMichael Chan } 1580cf4e6363SMichael Chan done: 1581cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 1582cf4e6363SMichael Chan spin_unlock(&session->lock); 1583cf4e6363SMichael Chan 1584cf4e6363SMichael Chan return tgt_async_nop; 1585cf4e6363SMichael Chan } 1586cf4e6363SMichael Chan 1587cf4e6363SMichael Chan 1588cf4e6363SMichael Chan /** 1589cf4e6363SMichael Chan * bnx2i_process_async_mesg - this function handles iscsi async message 1590cf4e6363SMichael Chan * @session: iscsi session pointer 1591cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1592cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1593cf4e6363SMichael Chan * 1594cf4e6363SMichael Chan * process iSCSI ASYNC Message 1595cf4e6363SMichael Chan */ 1596cf4e6363SMichael Chan static void bnx2i_process_async_mesg(struct iscsi_session *session, 1597cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1598cf4e6363SMichael Chan struct cqe *cqe) 1599cf4e6363SMichael Chan { 1600cf4e6363SMichael Chan struct bnx2i_async_msg *async_cqe; 1601cf4e6363SMichael Chan struct iscsi_async *resp_hdr; 1602cf4e6363SMichael Chan u8 async_event; 1603cf4e6363SMichael Chan 1604cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1605cf4e6363SMichael Chan 1606cf4e6363SMichael Chan async_cqe = (struct bnx2i_async_msg *)cqe; 1607cf4e6363SMichael Chan async_event = async_cqe->async_event; 1608cf4e6363SMichael Chan 1609cf4e6363SMichael Chan if (async_event == ISCSI_ASYNC_MSG_SCSI_EVENT) { 1610cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data, 1611cf4e6363SMichael Chan "async: scsi events not supported\n"); 1612cf4e6363SMichael Chan return; 1613cf4e6363SMichael Chan } 1614cf4e6363SMichael Chan 1615cf4e6363SMichael Chan spin_lock(&session->lock); 1616cf4e6363SMichael Chan resp_hdr = (struct iscsi_async *) &bnx2i_conn->gen_pdu.resp_hdr; 1617cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1618cf4e6363SMichael Chan resp_hdr->opcode = async_cqe->op_code; 1619cf4e6363SMichael Chan resp_hdr->flags = 0x80; 1620cf4e6363SMichael Chan 1621cf4e6363SMichael Chan memcpy(resp_hdr->lun, async_cqe->lun, 8); 1622cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(async_cqe->exp_cmd_sn); 1623cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(async_cqe->max_cmd_sn); 1624cf4e6363SMichael Chan 1625cf4e6363SMichael Chan resp_hdr->async_event = async_cqe->async_event; 1626cf4e6363SMichael Chan resp_hdr->async_vcode = async_cqe->async_vcode; 1627cf4e6363SMichael Chan 1628cf4e6363SMichael Chan resp_hdr->param1 = cpu_to_be16(async_cqe->param1); 1629cf4e6363SMichael Chan resp_hdr->param2 = cpu_to_be16(async_cqe->param2); 1630cf4e6363SMichael Chan resp_hdr->param3 = cpu_to_be16(async_cqe->param3); 1631cf4e6363SMichael Chan 1632cf4e6363SMichael Chan __iscsi_complete_pdu(bnx2i_conn->cls_conn->dd_data, 1633cf4e6363SMichael Chan (struct iscsi_hdr *)resp_hdr, NULL, 0); 1634cf4e6363SMichael Chan spin_unlock(&session->lock); 1635cf4e6363SMichael Chan } 1636cf4e6363SMichael Chan 1637cf4e6363SMichael Chan 1638cf4e6363SMichael Chan /** 1639cf4e6363SMichael Chan * bnx2i_process_reject_mesg - process iscsi reject pdu 1640cf4e6363SMichael Chan * @session: iscsi session pointer 1641cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1642cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1643cf4e6363SMichael Chan * 1644cf4e6363SMichael Chan * process iSCSI REJECT message 1645cf4e6363SMichael Chan */ 1646cf4e6363SMichael Chan static void bnx2i_process_reject_mesg(struct iscsi_session *session, 1647cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1648cf4e6363SMichael Chan struct cqe *cqe) 1649cf4e6363SMichael Chan { 1650cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1651cf4e6363SMichael Chan struct bnx2i_reject_msg *reject; 1652cf4e6363SMichael Chan struct iscsi_reject *hdr; 1653cf4e6363SMichael Chan 1654cf4e6363SMichael Chan reject = (struct bnx2i_reject_msg *) cqe; 1655cf4e6363SMichael Chan if (reject->data_length) { 1656cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_conn, conn->data, reject->data_length); 1657cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_conn, 1); 1658cf4e6363SMichael Chan } else 1659cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1660cf4e6363SMichael Chan 1661cf4e6363SMichael Chan spin_lock(&session->lock); 1662cf4e6363SMichael Chan hdr = (struct iscsi_reject *) &bnx2i_conn->gen_pdu.resp_hdr; 1663cf4e6363SMichael Chan memset(hdr, 0, sizeof(struct iscsi_hdr)); 1664cf4e6363SMichael Chan hdr->opcode = reject->op_code; 1665cf4e6363SMichael Chan hdr->reason = reject->reason; 1666cf4e6363SMichael Chan hton24(hdr->dlength, reject->data_length); 1667cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(reject->max_cmd_sn); 1668cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(reject->exp_cmd_sn); 1669cf4e6363SMichael Chan hdr->ffffffff = cpu_to_be32(RESERVED_ITT); 1670cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, conn->data, 1671cf4e6363SMichael Chan reject->data_length); 1672cf4e6363SMichael Chan spin_unlock(&session->lock); 1673cf4e6363SMichael Chan } 1674cf4e6363SMichael Chan 1675cf4e6363SMichael Chan /** 1676cf4e6363SMichael Chan * bnx2i_process_cmd_cleanup_resp - process scsi command clean-up completion 1677cf4e6363SMichael Chan * @session: iscsi session pointer 1678cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1679cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1680cf4e6363SMichael Chan * 1681cf4e6363SMichael Chan * process command cleanup response CQE during conn shutdown or error recovery 1682cf4e6363SMichael Chan */ 1683cf4e6363SMichael Chan static void bnx2i_process_cmd_cleanup_resp(struct iscsi_session *session, 1684cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1685cf4e6363SMichael Chan struct cqe *cqe) 1686cf4e6363SMichael Chan { 1687cf4e6363SMichael Chan struct bnx2i_cleanup_response *cmd_clean_rsp; 1688cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1689cf4e6363SMichael Chan struct iscsi_task *task; 1690cf4e6363SMichael Chan 1691cf4e6363SMichael Chan cmd_clean_rsp = (struct bnx2i_cleanup_response *)cqe; 1692cf4e6363SMichael Chan spin_lock(&session->lock); 1693cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1694cf4e6363SMichael Chan cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX); 1695cf4e6363SMichael Chan if (!task) 1696cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: cmd clean ITT %x not active\n", 1697cf4e6363SMichael Chan cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX); 1698cf4e6363SMichael Chan spin_unlock(&session->lock); 1699cf4e6363SMichael Chan complete(&bnx2i_conn->cmd_cleanup_cmpl); 1700cf4e6363SMichael Chan } 1701cf4e6363SMichael Chan 1702cf4e6363SMichael Chan 1703cf4e6363SMichael Chan 1704cf4e6363SMichael Chan /** 1705cf4e6363SMichael Chan * bnx2i_process_new_cqes - process newly DMA'ed CQE's 1706cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection 1707cf4e6363SMichael Chan * 1708cf4e6363SMichael Chan * this function is called by generic KCQ handler to process all pending CQE's 1709cf4e6363SMichael Chan */ 1710cf4e6363SMichael Chan static void bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn) 1711cf4e6363SMichael Chan { 1712cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1713cf4e6363SMichael Chan struct iscsi_session *session = conn->session; 1714cf4e6363SMichael Chan struct qp_info *qp = &bnx2i_conn->ep->qp; 1715cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nopin; 1716cf4e6363SMichael Chan int tgt_async_msg; 1717cf4e6363SMichael Chan 1718cf4e6363SMichael Chan while (1) { 1719cf4e6363SMichael Chan nopin = (struct bnx2i_nop_in_msg *) qp->cq_cons_qe; 1720cf4e6363SMichael Chan if (nopin->cq_req_sn != qp->cqe_exp_seq_sn) 1721cf4e6363SMichael Chan break; 1722cf4e6363SMichael Chan 17235ee32576SEddie Wai if (unlikely(test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx))) { 17245ee32576SEddie Wai if (nopin->op_code == ISCSI_OP_NOOP_IN && 17255ee32576SEddie Wai nopin->itt == (u16) RESERVED_ITT) { 17265ee32576SEddie Wai printk(KERN_ALERT "bnx2i: Unsolicited " 17275ee32576SEddie Wai "NOP-In detected for suspended " 17285ee32576SEddie Wai "connection dev=%s!\n", 17295ee32576SEddie Wai bnx2i_conn->hba->netdev->name); 17305ee32576SEddie Wai bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 17315ee32576SEddie Wai goto cqe_out; 17325ee32576SEddie Wai } 1733cf4e6363SMichael Chan break; 17345ee32576SEddie Wai } 1735cf4e6363SMichael Chan tgt_async_msg = 0; 1736cf4e6363SMichael Chan 1737cf4e6363SMichael Chan switch (nopin->op_code) { 1738cf4e6363SMichael Chan case ISCSI_OP_SCSI_CMD_RSP: 1739cf4e6363SMichael Chan case ISCSI_OP_SCSI_DATA_IN: 1740cf4e6363SMichael Chan bnx2i_process_scsi_cmd_resp(session, bnx2i_conn, 1741cf4e6363SMichael Chan qp->cq_cons_qe); 1742cf4e6363SMichael Chan break; 1743cf4e6363SMichael Chan case ISCSI_OP_LOGIN_RSP: 1744cf4e6363SMichael Chan bnx2i_process_login_resp(session, bnx2i_conn, 1745cf4e6363SMichael Chan qp->cq_cons_qe); 1746cf4e6363SMichael Chan break; 1747cf4e6363SMichael Chan case ISCSI_OP_SCSI_TMFUNC_RSP: 1748cf4e6363SMichael Chan bnx2i_process_tmf_resp(session, bnx2i_conn, 1749cf4e6363SMichael Chan qp->cq_cons_qe); 1750cf4e6363SMichael Chan break; 1751cf4e6363SMichael Chan case ISCSI_OP_LOGOUT_RSP: 1752cf4e6363SMichael Chan bnx2i_process_logout_resp(session, bnx2i_conn, 1753cf4e6363SMichael Chan qp->cq_cons_qe); 1754cf4e6363SMichael Chan break; 1755cf4e6363SMichael Chan case ISCSI_OP_NOOP_IN: 1756cf4e6363SMichael Chan if (bnx2i_process_nopin_mesg(session, bnx2i_conn, 1757cf4e6363SMichael Chan qp->cq_cons_qe)) 1758cf4e6363SMichael Chan tgt_async_msg = 1; 1759cf4e6363SMichael Chan break; 1760cf4e6363SMichael Chan case ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION: 1761cf4e6363SMichael Chan bnx2i_process_nopin_local_cmpl(session, bnx2i_conn, 1762cf4e6363SMichael Chan qp->cq_cons_qe); 1763cf4e6363SMichael Chan break; 1764cf4e6363SMichael Chan case ISCSI_OP_ASYNC_EVENT: 1765cf4e6363SMichael Chan bnx2i_process_async_mesg(session, bnx2i_conn, 1766cf4e6363SMichael Chan qp->cq_cons_qe); 1767cf4e6363SMichael Chan tgt_async_msg = 1; 1768cf4e6363SMichael Chan break; 1769cf4e6363SMichael Chan case ISCSI_OP_REJECT: 1770cf4e6363SMichael Chan bnx2i_process_reject_mesg(session, bnx2i_conn, 1771cf4e6363SMichael Chan qp->cq_cons_qe); 1772cf4e6363SMichael Chan break; 1773cf4e6363SMichael Chan case ISCSI_OPCODE_CLEANUP_RESPONSE: 1774cf4e6363SMichael Chan bnx2i_process_cmd_cleanup_resp(session, bnx2i_conn, 1775cf4e6363SMichael Chan qp->cq_cons_qe); 1776cf4e6363SMichael Chan break; 1777cf4e6363SMichael Chan default: 1778cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n", 1779cf4e6363SMichael Chan nopin->op_code); 1780cf4e6363SMichael Chan } 1781cf4e6363SMichael Chan if (!tgt_async_msg) 1782cf4e6363SMichael Chan bnx2i_conn->ep->num_active_cmds--; 17835ee32576SEddie Wai cqe_out: 1784cf4e6363SMichael Chan /* clear out in production version only, till beta keep opcode 1785cf4e6363SMichael Chan * field intact, will be helpful in debugging (context dump) 1786cf4e6363SMichael Chan * nopin->op_code = 0; 1787cf4e6363SMichael Chan */ 1788cf4e6363SMichael Chan qp->cqe_exp_seq_sn++; 1789cf4e6363SMichael Chan if (qp->cqe_exp_seq_sn == (qp->cqe_size * 2 + 1)) 1790cf4e6363SMichael Chan qp->cqe_exp_seq_sn = ISCSI_INITIAL_SN; 1791cf4e6363SMichael Chan 1792cf4e6363SMichael Chan if (qp->cq_cons_qe == qp->cq_last_qe) { 1793cf4e6363SMichael Chan qp->cq_cons_qe = qp->cq_first_qe; 1794cf4e6363SMichael Chan qp->cq_cons_idx = 0; 1795cf4e6363SMichael Chan } else { 1796cf4e6363SMichael Chan qp->cq_cons_qe++; 1797cf4e6363SMichael Chan qp->cq_cons_idx++; 1798cf4e6363SMichael Chan } 1799cf4e6363SMichael Chan } 1800cf4e6363SMichael Chan bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, CNIC_ARM_CQE); 1801cf4e6363SMichael Chan } 1802cf4e6363SMichael Chan 1803cf4e6363SMichael Chan /** 1804cf4e6363SMichael Chan * bnx2i_fastpath_notification - process global event queue (KCQ) 1805cf4e6363SMichael Chan * @hba: adapter structure pointer 1806cf4e6363SMichael Chan * @new_cqe_kcqe: pointer to newly DMA'ed KCQE entry 1807cf4e6363SMichael Chan * 1808cf4e6363SMichael Chan * Fast path event notification handler, KCQ entry carries context id 1809cf4e6363SMichael Chan * of the connection that has 1 or more pending CQ entries 1810cf4e6363SMichael Chan */ 1811cf4e6363SMichael Chan static void bnx2i_fastpath_notification(struct bnx2i_hba *hba, 1812cf4e6363SMichael Chan struct iscsi_kcqe *new_cqe_kcqe) 1813cf4e6363SMichael Chan { 1814cf4e6363SMichael Chan struct bnx2i_conn *conn; 1815cf4e6363SMichael Chan u32 iscsi_cid; 1816cf4e6363SMichael Chan 1817cf4e6363SMichael Chan iscsi_cid = new_cqe_kcqe->iscsi_conn_id; 1818cf4e6363SMichael Chan conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 1819cf4e6363SMichael Chan 1820cf4e6363SMichael Chan if (!conn) { 1821cf4e6363SMichael Chan printk(KERN_ALERT "cid #%x not valid\n", iscsi_cid); 1822cf4e6363SMichael Chan return; 1823cf4e6363SMichael Chan } 1824cf4e6363SMichael Chan if (!conn->ep) { 1825cf4e6363SMichael Chan printk(KERN_ALERT "cid #%x - ep not bound\n", iscsi_cid); 1826cf4e6363SMichael Chan return; 1827cf4e6363SMichael Chan } 1828cf4e6363SMichael Chan 1829cf4e6363SMichael Chan bnx2i_process_new_cqes(conn); 1830cf4e6363SMichael Chan } 1831cf4e6363SMichael Chan 1832cf4e6363SMichael Chan 1833cf4e6363SMichael Chan /** 1834cf4e6363SMichael Chan * bnx2i_process_update_conn_cmpl - process iscsi conn update completion KCQE 1835cf4e6363SMichael Chan * @hba: adapter structure pointer 1836cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 1837cf4e6363SMichael Chan * 1838cf4e6363SMichael Chan * CONN_UPDATE completion handler, this completes iSCSI connection FFP migration 1839cf4e6363SMichael Chan */ 1840cf4e6363SMichael Chan static void bnx2i_process_update_conn_cmpl(struct bnx2i_hba *hba, 1841cf4e6363SMichael Chan struct iscsi_kcqe *update_kcqe) 1842cf4e6363SMichael Chan { 1843cf4e6363SMichael Chan struct bnx2i_conn *conn; 1844cf4e6363SMichael Chan u32 iscsi_cid; 1845cf4e6363SMichael Chan 1846cf4e6363SMichael Chan iscsi_cid = update_kcqe->iscsi_conn_id; 1847cf4e6363SMichael Chan conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 1848cf4e6363SMichael Chan 1849cf4e6363SMichael Chan if (!conn) { 1850cf4e6363SMichael Chan printk(KERN_ALERT "conn_update: cid %x not valid\n", iscsi_cid); 1851cf4e6363SMichael Chan return; 1852cf4e6363SMichael Chan } 1853cf4e6363SMichael Chan if (!conn->ep) { 1854cf4e6363SMichael Chan printk(KERN_ALERT "cid %x does not have ep bound\n", iscsi_cid); 1855cf4e6363SMichael Chan return; 1856cf4e6363SMichael Chan } 1857cf4e6363SMichael Chan 1858cf4e6363SMichael Chan if (update_kcqe->completion_status) { 1859cf4e6363SMichael Chan printk(KERN_ALERT "request failed cid %x\n", iscsi_cid); 1860cf4e6363SMichael Chan conn->ep->state = EP_STATE_ULP_UPDATE_FAILED; 1861cf4e6363SMichael Chan } else 1862cf4e6363SMichael Chan conn->ep->state = EP_STATE_ULP_UPDATE_COMPL; 1863cf4e6363SMichael Chan 1864cf4e6363SMichael Chan wake_up_interruptible(&conn->ep->ofld_wait); 1865cf4e6363SMichael Chan } 1866cf4e6363SMichael Chan 1867cf4e6363SMichael Chan 1868cf4e6363SMichael Chan /** 1869cf4e6363SMichael Chan * bnx2i_recovery_que_add_conn - add connection to recovery queue 1870cf4e6363SMichael Chan * @hba: adapter structure pointer 1871cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection 1872cf4e6363SMichael Chan * 1873cf4e6363SMichael Chan * Add connection to recovery queue and schedule adapter eh worker 1874cf4e6363SMichael Chan */ 1875cf4e6363SMichael Chan static void bnx2i_recovery_que_add_conn(struct bnx2i_hba *hba, 1876cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn) 1877cf4e6363SMichael Chan { 1878cf4e6363SMichael Chan iscsi_conn_failure(bnx2i_conn->cls_conn->dd_data, 1879cf4e6363SMichael Chan ISCSI_ERR_CONN_FAILED); 1880cf4e6363SMichael Chan } 1881cf4e6363SMichael Chan 1882cf4e6363SMichael Chan 1883cf4e6363SMichael Chan /** 1884cf4e6363SMichael Chan * bnx2i_process_tcp_error - process error notification on a given connection 1885cf4e6363SMichael Chan * 1886cf4e6363SMichael Chan * @hba: adapter structure pointer 1887cf4e6363SMichael Chan * @tcp_err: tcp error kcqe pointer 1888cf4e6363SMichael Chan * 1889cf4e6363SMichael Chan * handles tcp level error notifications from FW. 1890cf4e6363SMichael Chan */ 1891cf4e6363SMichael Chan static void bnx2i_process_tcp_error(struct bnx2i_hba *hba, 1892cf4e6363SMichael Chan struct iscsi_kcqe *tcp_err) 1893cf4e6363SMichael Chan { 1894cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn; 1895cf4e6363SMichael Chan u32 iscsi_cid; 1896cf4e6363SMichael Chan 1897cf4e6363SMichael Chan iscsi_cid = tcp_err->iscsi_conn_id; 1898cf4e6363SMichael Chan bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 1899cf4e6363SMichael Chan 1900cf4e6363SMichael Chan if (!bnx2i_conn) { 1901cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid); 1902cf4e6363SMichael Chan return; 1903cf4e6363SMichael Chan } 1904cf4e6363SMichael Chan 1905cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x had TCP errors, error code 0x%x\n", 1906cf4e6363SMichael Chan iscsi_cid, tcp_err->completion_status); 1907cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn); 1908cf4e6363SMichael Chan } 1909cf4e6363SMichael Chan 1910cf4e6363SMichael Chan 1911cf4e6363SMichael Chan /** 1912cf4e6363SMichael Chan * bnx2i_process_iscsi_error - process error notification on a given connection 1913cf4e6363SMichael Chan * @hba: adapter structure pointer 1914cf4e6363SMichael Chan * @iscsi_err: iscsi error kcqe pointer 1915cf4e6363SMichael Chan * 1916cf4e6363SMichael Chan * handles iscsi error notifications from the FW. Firmware based in initial 1917cf4e6363SMichael Chan * handshake classifies iscsi protocol / TCP rfc violation into either 1918cf4e6363SMichael Chan * warning or error indications. If indication is of "Error" type, driver 1919cf4e6363SMichael Chan * will initiate session recovery for that connection/session. For 1920cf4e6363SMichael Chan * "Warning" type indication, driver will put out a system log message 1921cf4e6363SMichael Chan * (there will be only one message for each type for the life of the 1922cf4e6363SMichael Chan * session, this is to avoid un-necessarily overloading the system) 1923cf4e6363SMichael Chan */ 1924cf4e6363SMichael Chan static void bnx2i_process_iscsi_error(struct bnx2i_hba *hba, 1925cf4e6363SMichael Chan struct iscsi_kcqe *iscsi_err) 1926cf4e6363SMichael Chan { 1927cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn; 1928cf4e6363SMichael Chan u32 iscsi_cid; 1929cf4e6363SMichael Chan char warn_notice[] = "iscsi_warning"; 1930cf4e6363SMichael Chan char error_notice[] = "iscsi_error"; 1931cf4e6363SMichael Chan char additional_notice[64]; 1932cf4e6363SMichael Chan char *message; 1933cf4e6363SMichael Chan int need_recovery; 1934cf4e6363SMichael Chan u64 err_mask64; 1935cf4e6363SMichael Chan 1936cf4e6363SMichael Chan iscsi_cid = iscsi_err->iscsi_conn_id; 1937cf4e6363SMichael Chan bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 1938cf4e6363SMichael Chan if (!bnx2i_conn) { 1939cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid); 1940cf4e6363SMichael Chan return; 1941cf4e6363SMichael Chan } 1942cf4e6363SMichael Chan 1943cf4e6363SMichael Chan err_mask64 = (0x1ULL << iscsi_err->completion_status); 1944cf4e6363SMichael Chan 1945cf4e6363SMichael Chan if (err_mask64 & iscsi_error_mask) { 1946cf4e6363SMichael Chan need_recovery = 0; 1947cf4e6363SMichael Chan message = warn_notice; 1948cf4e6363SMichael Chan } else { 1949cf4e6363SMichael Chan need_recovery = 1; 1950cf4e6363SMichael Chan message = error_notice; 1951cf4e6363SMichael Chan } 1952cf4e6363SMichael Chan 1953cf4e6363SMichael Chan switch (iscsi_err->completion_status) { 1954cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR: 1955cf4e6363SMichael Chan strcpy(additional_notice, "hdr digest err"); 1956cf4e6363SMichael Chan break; 1957cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR: 1958cf4e6363SMichael Chan strcpy(additional_notice, "data digest err"); 1959cf4e6363SMichael Chan break; 1960cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE: 1961cf4e6363SMichael Chan strcpy(additional_notice, "wrong opcode rcvd"); 1962cf4e6363SMichael Chan break; 1963cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN: 1964cf4e6363SMichael Chan strcpy(additional_notice, "AHS len > 0 rcvd"); 1965cf4e6363SMichael Chan break; 1966cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT: 1967cf4e6363SMichael Chan strcpy(additional_notice, "invalid ITT rcvd"); 1968cf4e6363SMichael Chan break; 1969cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN: 1970cf4e6363SMichael Chan strcpy(additional_notice, "wrong StatSN rcvd"); 1971cf4e6363SMichael Chan break; 1972cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN: 1973cf4e6363SMichael Chan strcpy(additional_notice, "wrong DataSN rcvd"); 1974cf4e6363SMichael Chan break; 1975cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T: 1976cf4e6363SMichael Chan strcpy(additional_notice, "pend R2T violation"); 1977cf4e6363SMichael Chan break; 1978cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0: 1979cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, UO"); 1980cf4e6363SMichael Chan break; 1981cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1: 1982cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U1"); 1983cf4e6363SMichael Chan break; 1984cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2: 1985cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U2"); 1986cf4e6363SMichael Chan break; 1987cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3: 1988cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U3"); 1989cf4e6363SMichael Chan break; 1990cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4: 1991cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U4"); 1992cf4e6363SMichael Chan break; 1993cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5: 1994cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U5"); 1995cf4e6363SMichael Chan break; 1996cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6: 1997cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U6"); 1998cf4e6363SMichael Chan break; 1999cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN: 2000cf4e6363SMichael Chan strcpy(additional_notice, "invalid resi len"); 2001cf4e6363SMichael Chan break; 2002cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN: 2003cf4e6363SMichael Chan strcpy(additional_notice, "MRDSL violation"); 2004cf4e6363SMichael Chan break; 2005cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO: 2006cf4e6363SMichael Chan strcpy(additional_notice, "F-bit not set"); 2007cf4e6363SMichael Chan break; 2008cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV: 2009cf4e6363SMichael Chan strcpy(additional_notice, "invalid TTT"); 2010cf4e6363SMichael Chan break; 2011cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN: 2012cf4e6363SMichael Chan strcpy(additional_notice, "invalid DataSN"); 2013cf4e6363SMichael Chan break; 2014cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN: 2015cf4e6363SMichael Chan strcpy(additional_notice, "burst len violation"); 2016cf4e6363SMichael Chan break; 2017cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF: 2018cf4e6363SMichael Chan strcpy(additional_notice, "buf offset violation"); 2019cf4e6363SMichael Chan break; 2020cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN: 2021cf4e6363SMichael Chan strcpy(additional_notice, "invalid LUN field"); 2022cf4e6363SMichael Chan break; 2023cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN: 2024cf4e6363SMichael Chan strcpy(additional_notice, "invalid R2TSN field"); 2025cf4e6363SMichael Chan break; 2026cf4e6363SMichael Chan #define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0 \ 2027cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 2028cf4e6363SMichael Chan case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0: 2029cf4e6363SMichael Chan strcpy(additional_notice, "invalid cmd len1"); 2030cf4e6363SMichael Chan break; 2031cf4e6363SMichael Chan #define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1 \ 2032cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 2033cf4e6363SMichael Chan case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1: 2034cf4e6363SMichael Chan strcpy(additional_notice, "invalid cmd len2"); 2035cf4e6363SMichael Chan break; 2036cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED: 2037cf4e6363SMichael Chan strcpy(additional_notice, 2038cf4e6363SMichael Chan "pend r2t exceeds MaxOutstandingR2T value"); 2039cf4e6363SMichael Chan break; 2040cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV: 2041cf4e6363SMichael Chan strcpy(additional_notice, "TTT is rsvd"); 2042cf4e6363SMichael Chan break; 2043cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN: 2044cf4e6363SMichael Chan strcpy(additional_notice, "MBL violation"); 2045cf4e6363SMichael Chan break; 2046cf4e6363SMichael Chan #define BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO \ 2047cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO 2048cf4e6363SMichael Chan case BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO: 2049cf4e6363SMichael Chan strcpy(additional_notice, "data seg len != 0"); 2050cf4e6363SMichael Chan break; 2051cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN: 2052cf4e6363SMichael Chan strcpy(additional_notice, "reject pdu len error"); 2053cf4e6363SMichael Chan break; 2054cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ASYNC_PDU_LEN: 2055cf4e6363SMichael Chan strcpy(additional_notice, "async pdu len error"); 2056cf4e6363SMichael Chan break; 2057cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_NOPIN_PDU_LEN: 2058cf4e6363SMichael Chan strcpy(additional_notice, "nopin pdu len error"); 2059cf4e6363SMichael Chan break; 2060cf4e6363SMichael Chan #define BNX2_ERR_PEND_R2T_IN_CLEANUP \ 2061cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_IN_CLEANUP 2062cf4e6363SMichael Chan case BNX2_ERR_PEND_R2T_IN_CLEANUP: 2063cf4e6363SMichael Chan strcpy(additional_notice, "pend r2t in cleanup"); 2064cf4e6363SMichael Chan break; 2065cf4e6363SMichael Chan 2066cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT: 2067cf4e6363SMichael Chan strcpy(additional_notice, "IP fragments rcvd"); 2068cf4e6363SMichael Chan break; 2069cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS: 2070cf4e6363SMichael Chan strcpy(additional_notice, "IP options error"); 2071cf4e6363SMichael Chan break; 2072cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG: 2073cf4e6363SMichael Chan strcpy(additional_notice, "urgent flag error"); 2074cf4e6363SMichael Chan break; 2075cf4e6363SMichael Chan default: 2076cf4e6363SMichael Chan printk(KERN_ALERT "iscsi_err - unknown err %x\n", 2077cf4e6363SMichael Chan iscsi_err->completion_status); 2078cf4e6363SMichael Chan } 2079cf4e6363SMichael Chan 2080cf4e6363SMichael Chan if (need_recovery) { 2081cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2082cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2083cf4e6363SMichael Chan "bnx2i: %s - %s\n", 2084cf4e6363SMichael Chan message, additional_notice); 2085cf4e6363SMichael Chan 2086cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2087cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2088cf4e6363SMichael Chan "conn_err - hostno %d conn %p, " 2089cf4e6363SMichael Chan "iscsi_cid %x cid %x\n", 2090cf4e6363SMichael Chan bnx2i_conn->hba->shost->host_no, 2091cf4e6363SMichael Chan bnx2i_conn, bnx2i_conn->ep->ep_iscsi_cid, 2092cf4e6363SMichael Chan bnx2i_conn->ep->ep_cid); 2093cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn); 2094cf4e6363SMichael Chan } else 2095cf4e6363SMichael Chan if (!test_and_set_bit(iscsi_err->completion_status, 2096cf4e6363SMichael Chan (void *) &bnx2i_conn->violation_notified)) 2097cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2098cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2099cf4e6363SMichael Chan "bnx2i: %s - %s\n", 2100cf4e6363SMichael Chan message, additional_notice); 2101cf4e6363SMichael Chan } 2102cf4e6363SMichael Chan 2103cf4e6363SMichael Chan 2104cf4e6363SMichael Chan /** 2105cf4e6363SMichael Chan * bnx2i_process_conn_destroy_cmpl - process iscsi conn destroy completion 2106cf4e6363SMichael Chan * @hba: adapter structure pointer 2107cf4e6363SMichael Chan * @conn_destroy: conn destroy kcqe pointer 2108cf4e6363SMichael Chan * 2109cf4e6363SMichael Chan * handles connection destroy completion request. 2110cf4e6363SMichael Chan */ 2111cf4e6363SMichael Chan static void bnx2i_process_conn_destroy_cmpl(struct bnx2i_hba *hba, 2112cf4e6363SMichael Chan struct iscsi_kcqe *conn_destroy) 2113cf4e6363SMichael Chan { 2114cf4e6363SMichael Chan struct bnx2i_endpoint *ep; 2115cf4e6363SMichael Chan 2116cf4e6363SMichael Chan ep = bnx2i_find_ep_in_destroy_list(hba, conn_destroy->iscsi_conn_id); 2117cf4e6363SMichael Chan if (!ep) { 2118cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i_conn_destroy_cmpl: no pending " 2119cf4e6363SMichael Chan "offload request, unexpected complection\n"); 2120cf4e6363SMichael Chan return; 2121cf4e6363SMichael Chan } 2122cf4e6363SMichael Chan 2123cf4e6363SMichael Chan if (hba != ep->hba) { 2124cf4e6363SMichael Chan printk(KERN_ALERT "conn destroy- error hba mis-match\n"); 2125cf4e6363SMichael Chan return; 2126cf4e6363SMichael Chan } 2127cf4e6363SMichael Chan 2128cf4e6363SMichael Chan if (conn_destroy->completion_status) { 2129cf4e6363SMichael Chan printk(KERN_ALERT "conn_destroy_cmpl: op failed\n"); 2130cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_FAILED; 2131cf4e6363SMichael Chan } else 2132cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_CMPL; 2133cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2134cf4e6363SMichael Chan } 2135cf4e6363SMichael Chan 2136cf4e6363SMichael Chan 2137cf4e6363SMichael Chan /** 2138cf4e6363SMichael Chan * bnx2i_process_ofld_cmpl - process initial iscsi conn offload completion 2139cf4e6363SMichael Chan * @hba: adapter structure pointer 2140cf4e6363SMichael Chan * @ofld_kcqe: conn offload kcqe pointer 2141cf4e6363SMichael Chan * 2142cf4e6363SMichael Chan * handles initial connection offload completion, ep_connect() thread is 2143cf4e6363SMichael Chan * woken-up to continue with LLP connect process 2144cf4e6363SMichael Chan */ 2145cf4e6363SMichael Chan static void bnx2i_process_ofld_cmpl(struct bnx2i_hba *hba, 2146cf4e6363SMichael Chan struct iscsi_kcqe *ofld_kcqe) 2147cf4e6363SMichael Chan { 2148cf4e6363SMichael Chan u32 cid_addr; 2149cf4e6363SMichael Chan struct bnx2i_endpoint *ep; 2150cf4e6363SMichael Chan u32 cid_num; 2151cf4e6363SMichael Chan 2152cf4e6363SMichael Chan ep = bnx2i_find_ep_in_ofld_list(hba, ofld_kcqe->iscsi_conn_id); 2153cf4e6363SMichael Chan if (!ep) { 2154cf4e6363SMichael Chan printk(KERN_ALERT "ofld_cmpl: no pend offload request\n"); 2155cf4e6363SMichael Chan return; 2156cf4e6363SMichael Chan } 2157cf4e6363SMichael Chan 2158cf4e6363SMichael Chan if (hba != ep->hba) { 2159cf4e6363SMichael Chan printk(KERN_ALERT "ofld_cmpl: error hba mis-match\n"); 2160cf4e6363SMichael Chan return; 2161cf4e6363SMichael Chan } 2162cf4e6363SMichael Chan 2163cf4e6363SMichael Chan if (ofld_kcqe->completion_status) { 2164cf4e6363SMichael Chan if (ofld_kcqe->completion_status == 2165cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) 2166cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to allocate" 2167cf4e6363SMichael Chan " iSCSI context resources\n"); 2168cf4e6363SMichael Chan ep->state = EP_STATE_OFLD_FAILED; 2169cf4e6363SMichael Chan } else { 2170cf4e6363SMichael Chan ep->state = EP_STATE_OFLD_COMPL; 2171cf4e6363SMichael Chan cid_addr = ofld_kcqe->iscsi_conn_context_id; 2172cf4e6363SMichael Chan cid_num = bnx2i_get_cid_num(ep); 2173cf4e6363SMichael Chan ep->ep_cid = cid_addr; 2174cf4e6363SMichael Chan ep->qp.ctx_base = NULL; 2175cf4e6363SMichael Chan } 2176cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2177cf4e6363SMichael Chan } 2178cf4e6363SMichael Chan 2179cf4e6363SMichael Chan /** 2180cf4e6363SMichael Chan * bnx2i_indicate_kcqe - process iscsi conn update completion KCQE 2181cf4e6363SMichael Chan * @hba: adapter structure pointer 2182cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 2183cf4e6363SMichael Chan * 2184cf4e6363SMichael Chan * Generic KCQ event handler/dispatcher 2185cf4e6363SMichael Chan */ 2186cf4e6363SMichael Chan static void bnx2i_indicate_kcqe(void *context, struct kcqe *kcqe[], 2187cf4e6363SMichael Chan u32 num_cqe) 2188cf4e6363SMichael Chan { 2189cf4e6363SMichael Chan struct bnx2i_hba *hba = context; 2190cf4e6363SMichael Chan int i = 0; 2191cf4e6363SMichael Chan struct iscsi_kcqe *ikcqe = NULL; 2192cf4e6363SMichael Chan 2193cf4e6363SMichael Chan while (i < num_cqe) { 2194cf4e6363SMichael Chan ikcqe = (struct iscsi_kcqe *) kcqe[i++]; 2195cf4e6363SMichael Chan 2196cf4e6363SMichael Chan if (ikcqe->op_code == 2197cf4e6363SMichael Chan ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION) 2198cf4e6363SMichael Chan bnx2i_fastpath_notification(hba, ikcqe); 2199cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_OFFLOAD_CONN) 2200cf4e6363SMichael Chan bnx2i_process_ofld_cmpl(hba, ikcqe); 2201cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_UPDATE_CONN) 2202cf4e6363SMichael Chan bnx2i_process_update_conn_cmpl(hba, ikcqe); 2203cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_INIT) { 2204cf4e6363SMichael Chan if (ikcqe->completion_status != 2205cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_SUCCESS) 2206cf4e6363SMichael Chan bnx2i_iscsi_license_error(hba, ikcqe->\ 2207cf4e6363SMichael Chan completion_status); 2208cf4e6363SMichael Chan else { 2209cf4e6363SMichael Chan set_bit(ADAPTER_STATE_UP, &hba->adapter_state); 2210cf4e6363SMichael Chan bnx2i_get_link_state(hba); 2211cf4e6363SMichael Chan printk(KERN_INFO "bnx2i [%.2x:%.2x.%.2x]: " 2212cf4e6363SMichael Chan "ISCSI_INIT passed\n", 2213cf4e6363SMichael Chan (u8)hba->pcidev->bus->number, 2214cf4e6363SMichael Chan hba->pci_devno, 2215cf4e6363SMichael Chan (u8)hba->pci_func); 2216cf4e6363SMichael Chan 2217cf4e6363SMichael Chan 2218cf4e6363SMichael Chan } 2219cf4e6363SMichael Chan } else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_DESTROY_CONN) 2220cf4e6363SMichael Chan bnx2i_process_conn_destroy_cmpl(hba, ikcqe); 2221cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_ISCSI_ERROR) 2222cf4e6363SMichael Chan bnx2i_process_iscsi_error(hba, ikcqe); 2223cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_TCP_ERROR) 2224cf4e6363SMichael Chan bnx2i_process_tcp_error(hba, ikcqe); 2225cf4e6363SMichael Chan else 2226cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n", 2227cf4e6363SMichael Chan ikcqe->op_code); 2228cf4e6363SMichael Chan } 2229cf4e6363SMichael Chan } 2230cf4e6363SMichael Chan 2231cf4e6363SMichael Chan 2232cf4e6363SMichael Chan /** 2233cf4e6363SMichael Chan * bnx2i_indicate_netevent - Generic netdev event handler 2234cf4e6363SMichael Chan * @context: adapter structure pointer 2235cf4e6363SMichael Chan * @event: event type 2236cf4e6363SMichael Chan * 2237cf4e6363SMichael Chan * Handles four netdev events, NETDEV_UP, NETDEV_DOWN, 2238cf4e6363SMichael Chan * NETDEV_GOING_DOWN and NETDEV_CHANGE 2239cf4e6363SMichael Chan */ 2240cf4e6363SMichael Chan static void bnx2i_indicate_netevent(void *context, unsigned long event) 2241cf4e6363SMichael Chan { 2242cf4e6363SMichael Chan struct bnx2i_hba *hba = context; 2243cf4e6363SMichael Chan 2244cf4e6363SMichael Chan switch (event) { 2245cf4e6363SMichael Chan case NETDEV_UP: 2246cf4e6363SMichael Chan if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) 2247cf4e6363SMichael Chan bnx2i_send_fw_iscsi_init_msg(hba); 2248cf4e6363SMichael Chan break; 2249cf4e6363SMichael Chan case NETDEV_DOWN: 2250cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); 2251cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); 2252cf4e6363SMichael Chan break; 2253cf4e6363SMichael Chan case NETDEV_GOING_DOWN: 2254cf4e6363SMichael Chan set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); 2255cf4e6363SMichael Chan iscsi_host_for_each_session(hba->shost, 2256cf4e6363SMichael Chan bnx2i_drop_session); 2257cf4e6363SMichael Chan break; 2258cf4e6363SMichael Chan case NETDEV_CHANGE: 2259cf4e6363SMichael Chan bnx2i_get_link_state(hba); 2260cf4e6363SMichael Chan break; 2261cf4e6363SMichael Chan default: 2262cf4e6363SMichael Chan ; 2263cf4e6363SMichael Chan } 2264cf4e6363SMichael Chan } 2265cf4e6363SMichael Chan 2266cf4e6363SMichael Chan 2267cf4e6363SMichael Chan /** 2268cf4e6363SMichael Chan * bnx2i_cm_connect_cmpl - process iscsi conn establishment completion 2269cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2270cf4e6363SMichael Chan * 2271cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2272cf4e6363SMichael Chan * indicate completion of option-2 TCP connect request. 2273cf4e6363SMichael Chan */ 2274cf4e6363SMichael Chan static void bnx2i_cm_connect_cmpl(struct cnic_sock *cm_sk) 2275cf4e6363SMichael Chan { 2276cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2277cf4e6363SMichael Chan 2278cf4e6363SMichael Chan if (test_bit(ADAPTER_STATE_GOING_DOWN, &ep->hba->adapter_state)) 2279cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_FAILED; 2280cf4e6363SMichael Chan else if (test_bit(SK_F_OFFLD_COMPLETE, &cm_sk->flags)) 2281cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_COMPL; 2282cf4e6363SMichael Chan else 2283cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_FAILED; 2284cf4e6363SMichael Chan 2285cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2286cf4e6363SMichael Chan } 2287cf4e6363SMichael Chan 2288cf4e6363SMichael Chan 2289cf4e6363SMichael Chan /** 2290cf4e6363SMichael Chan * bnx2i_cm_close_cmpl - process tcp conn close completion 2291cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2292cf4e6363SMichael Chan * 2293cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2294cf4e6363SMichael Chan * indicate completion of option-2 graceful TCP connect shutdown 2295cf4e6363SMichael Chan */ 2296cf4e6363SMichael Chan static void bnx2i_cm_close_cmpl(struct cnic_sock *cm_sk) 2297cf4e6363SMichael Chan { 2298cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2299cf4e6363SMichael Chan 2300cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_COMPL; 2301cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2302cf4e6363SMichael Chan } 2303cf4e6363SMichael Chan 2304cf4e6363SMichael Chan 2305cf4e6363SMichael Chan /** 2306cf4e6363SMichael Chan * bnx2i_cm_abort_cmpl - process abortive tcp conn teardown completion 2307cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2308cf4e6363SMichael Chan * 2309cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2310cf4e6363SMichael Chan * indicate completion of option-2 abortive TCP connect termination 2311cf4e6363SMichael Chan */ 2312cf4e6363SMichael Chan static void bnx2i_cm_abort_cmpl(struct cnic_sock *cm_sk) 2313cf4e6363SMichael Chan { 2314cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2315cf4e6363SMichael Chan 2316cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_COMPL; 2317cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2318cf4e6363SMichael Chan } 2319cf4e6363SMichael Chan 2320cf4e6363SMichael Chan 2321cf4e6363SMichael Chan /** 2322cf4e6363SMichael Chan * bnx2i_cm_remote_close - process received TCP FIN 2323cf4e6363SMichael Chan * @hba: adapter structure pointer 2324cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 2325cf4e6363SMichael Chan * 2326cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to indicate 2327cf4e6363SMichael Chan * async TCP events such as FIN 2328cf4e6363SMichael Chan */ 2329cf4e6363SMichael Chan static void bnx2i_cm_remote_close(struct cnic_sock *cm_sk) 2330cf4e6363SMichael Chan { 2331cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2332cf4e6363SMichael Chan 2333cf4e6363SMichael Chan ep->state = EP_STATE_TCP_FIN_RCVD; 2334cf4e6363SMichael Chan if (ep->conn) 2335cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(ep->hba, ep->conn); 2336cf4e6363SMichael Chan } 2337cf4e6363SMichael Chan 2338cf4e6363SMichael Chan /** 2339cf4e6363SMichael Chan * bnx2i_cm_remote_abort - process TCP RST and start conn cleanup 2340cf4e6363SMichael Chan * @hba: adapter structure pointer 2341cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 2342cf4e6363SMichael Chan * 2343cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2344cf4e6363SMichael Chan * indicate async TCP events (RST) sent by the peer. 2345cf4e6363SMichael Chan */ 2346cf4e6363SMichael Chan static void bnx2i_cm_remote_abort(struct cnic_sock *cm_sk) 2347cf4e6363SMichael Chan { 2348cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2349cf4e6363SMichael Chan 2350cf4e6363SMichael Chan ep->state = EP_STATE_TCP_RST_RCVD; 2351cf4e6363SMichael Chan if (ep->conn) 2352cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(ep->hba, ep->conn); 2353cf4e6363SMichael Chan } 2354cf4e6363SMichael Chan 2355cf4e6363SMichael Chan 2356cf4e6363SMichael Chan static void bnx2i_send_nl_mesg(struct cnic_dev *dev, u32 msg_type, 2357cf4e6363SMichael Chan char *buf, u16 buflen) 2358cf4e6363SMichael Chan { 2359cf4e6363SMichael Chan struct bnx2i_hba *hba; 2360cf4e6363SMichael Chan 2361cf4e6363SMichael Chan hba = bnx2i_find_hba_for_cnic(dev); 2362cf4e6363SMichael Chan if (!hba) 2363cf4e6363SMichael Chan return; 2364cf4e6363SMichael Chan 2365cf4e6363SMichael Chan if (iscsi_offload_mesg(hba->shost, &bnx2i_iscsi_transport, 2366cf4e6363SMichael Chan msg_type, buf, buflen)) 2367cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: private nl message send error\n"); 2368cf4e6363SMichael Chan 2369cf4e6363SMichael Chan } 2370cf4e6363SMichael Chan 2371cf4e6363SMichael Chan 2372cf4e6363SMichael Chan /** 2373cf4e6363SMichael Chan * bnx2i_cnic_cb - global template of bnx2i - cnic driver interface structure 2374cf4e6363SMichael Chan * carrying callback function pointers 2375cf4e6363SMichael Chan * 2376cf4e6363SMichael Chan */ 2377cf4e6363SMichael Chan struct cnic_ulp_ops bnx2i_cnic_cb = { 2378cf4e6363SMichael Chan .cnic_init = bnx2i_ulp_init, 2379cf4e6363SMichael Chan .cnic_exit = bnx2i_ulp_exit, 2380cf4e6363SMichael Chan .cnic_start = bnx2i_start, 2381cf4e6363SMichael Chan .cnic_stop = bnx2i_stop, 2382cf4e6363SMichael Chan .indicate_kcqes = bnx2i_indicate_kcqe, 2383cf4e6363SMichael Chan .indicate_netevent = bnx2i_indicate_netevent, 2384cf4e6363SMichael Chan .cm_connect_complete = bnx2i_cm_connect_cmpl, 2385cf4e6363SMichael Chan .cm_close_complete = bnx2i_cm_close_cmpl, 2386cf4e6363SMichael Chan .cm_abort_complete = bnx2i_cm_abort_cmpl, 2387cf4e6363SMichael Chan .cm_remote_close = bnx2i_cm_remote_close, 2388cf4e6363SMichael Chan .cm_remote_abort = bnx2i_cm_remote_abort, 2389cf4e6363SMichael Chan .iscsi_nl_send_msg = bnx2i_send_nl_mesg, 2390cf4e6363SMichael Chan .owner = THIS_MODULE 2391cf4e6363SMichael Chan }; 2392cf4e6363SMichael Chan 2393cf4e6363SMichael Chan 2394cf4e6363SMichael Chan /** 2395cf4e6363SMichael Chan * bnx2i_map_ep_dbell_regs - map connection doorbell registers 2396cf4e6363SMichael Chan * @ep: bnx2i endpoint 2397cf4e6363SMichael Chan * 2398cf4e6363SMichael Chan * maps connection's SQ and RQ doorbell registers, 5706/5708/5709 hosts these 2399cf4e6363SMichael Chan * register in BAR #0. Whereas in 57710 these register are accessed by 2400cf4e6363SMichael Chan * mapping BAR #1 2401cf4e6363SMichael Chan */ 2402cf4e6363SMichael Chan int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) 2403cf4e6363SMichael Chan { 2404cf4e6363SMichael Chan u32 cid_num; 2405cf4e6363SMichael Chan u32 reg_off; 2406cf4e6363SMichael Chan u32 first_l4l5; 2407cf4e6363SMichael Chan u32 ctx_sz; 2408cf4e6363SMichael Chan u32 config2; 2409cf4e6363SMichael Chan resource_size_t reg_base; 2410cf4e6363SMichael Chan 2411cf4e6363SMichael Chan cid_num = bnx2i_get_cid_num(ep); 2412cf4e6363SMichael Chan 2413cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 2414cf4e6363SMichael Chan reg_base = pci_resource_start(ep->hba->pcidev, 2415cf4e6363SMichael Chan BNX2X_DOORBELL_PCI_BAR); 2416523224a3SDmitry Kravkov reg_off = BNX2I_5771X_DBELL_PAGE_SIZE * (cid_num & 0x1FFFF) + 2417523224a3SDmitry Kravkov DPM_TRIGER_TYPE; 2418cf4e6363SMichael Chan ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, 4); 2419cf4e6363SMichael Chan goto arm_cq; 2420cf4e6363SMichael Chan } 2421cf4e6363SMichael Chan 2422cf4e6363SMichael Chan reg_base = ep->hba->netdev->base_addr; 2423cf4e6363SMichael Chan if ((test_bit(BNX2I_NX2_DEV_5709, &ep->hba->cnic_dev_type)) && 2424cf4e6363SMichael Chan (ep->hba->mail_queue_access == BNX2I_MQ_BIN_MODE)) { 2425cf4e6363SMichael Chan config2 = REG_RD(ep->hba, BNX2_MQ_CONFIG2); 2426cf4e6363SMichael Chan first_l4l5 = config2 & BNX2_MQ_CONFIG2_FIRST_L4L5; 2427cf4e6363SMichael Chan ctx_sz = (config2 & BNX2_MQ_CONFIG2_CONT_SZ) >> 3; 2428cf4e6363SMichael Chan if (ctx_sz) 2429cf4e6363SMichael Chan reg_off = CTX_OFFSET + MAX_CID_CNT * MB_KERNEL_CTX_SIZE 243053203244SAnil Veerabhadrappa + BNX2I_570X_PAGE_SIZE_DEFAULT * 2431cf4e6363SMichael Chan (((cid_num - first_l4l5) / ctx_sz) + 256); 2432cf4e6363SMichael Chan else 2433cf4e6363SMichael Chan reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); 2434cf4e6363SMichael Chan } else 2435cf4e6363SMichael Chan /* 5709 device in normal node and 5706/5708 devices */ 2436cf4e6363SMichael Chan reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); 2437cf4e6363SMichael Chan 2438cf4e6363SMichael Chan ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, 2439cf4e6363SMichael Chan MB_KERNEL_CTX_SIZE); 2440cf4e6363SMichael Chan if (!ep->qp.ctx_base) 2441cf4e6363SMichael Chan return -ENOMEM; 2442cf4e6363SMichael Chan 2443cf4e6363SMichael Chan arm_cq: 2444cf4e6363SMichael Chan bnx2i_arm_cq_event_coalescing(ep, CNIC_ARM_CQE); 2445cf4e6363SMichael Chan return 0; 2446cf4e6363SMichael Chan } 2447