1f39a7757SVikas Chaudhary /* bnx2i_hwi.c: QLogic NetXtreme II iSCSI driver. 2cf4e6363SMichael Chan * 30b3bf387SEddie Wai * Copyright (c) 2006 - 2013 Broadcom Corporation 4cf4e6363SMichael Chan * Copyright (c) 2007, 2008 Red Hat, Inc. All rights reserved. 5cf4e6363SMichael Chan * Copyright (c) 2007, 2008 Mike Christie 6f39a7757SVikas Chaudhary * Copyright (c) 2014, QLogic Corporation 7cf4e6363SMichael Chan * 8cf4e6363SMichael Chan * This program is free software; you can redistribute it and/or modify 9cf4e6363SMichael Chan * it under the terms of the GNU General Public License as published by 10cf4e6363SMichael Chan * the Free Software Foundation. 11cf4e6363SMichael Chan * 12cf4e6363SMichael Chan * Written by: Anil Veerabhadrappa (anilgv@broadcom.com) 13f39a7757SVikas Chaudhary * Previously Maintained by: Eddie Wai (eddie.wai@broadcom.com) 14f39a7757SVikas Chaudhary * Maintained by: QLogic-Storage-Upstream@qlogic.com 15cf4e6363SMichael Chan */ 16cf4e6363SMichael Chan 175a0e3ad6STejun Heo #include <linux/gfp.h> 18cf4e6363SMichael Chan #include <scsi/scsi_tcq.h> 19cf4e6363SMichael Chan #include <scsi/libiscsi.h> 20cf4e6363SMichael Chan #include "bnx2i.h" 21cf4e6363SMichael Chan 22b5cf6b63SEddie Wai DECLARE_PER_CPU(struct bnx2i_percpu_s, bnx2i_percpu); 23b5cf6b63SEddie Wai 24cf4e6363SMichael Chan /** 25cf4e6363SMichael Chan * bnx2i_get_cid_num - get cid from ep 26cf4e6363SMichael Chan * @ep: endpoint pointer 27cf4e6363SMichael Chan * 28cf4e6363SMichael Chan * Only applicable to 57710 family of devices 29cf4e6363SMichael Chan */ 30cf4e6363SMichael Chan static u32 bnx2i_get_cid_num(struct bnx2i_endpoint *ep) 31cf4e6363SMichael Chan { 32cf4e6363SMichael Chan u32 cid; 33cf4e6363SMichael Chan 34cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 35cf4e6363SMichael Chan cid = ep->ep_cid; 36cf4e6363SMichael Chan else 37cf4e6363SMichael Chan cid = GET_CID_NUM(ep->ep_cid); 38cf4e6363SMichael Chan return cid; 39cf4e6363SMichael Chan } 40cf4e6363SMichael Chan 41cf4e6363SMichael Chan 42cf4e6363SMichael Chan /** 43cf4e6363SMichael Chan * bnx2i_adjust_qp_size - Adjust SQ/RQ/CQ size for 57710 device type 44cf4e6363SMichael Chan * @hba: Adapter for which adjustments is to be made 45cf4e6363SMichael Chan * 46cf4e6363SMichael Chan * Only applicable to 57710 family of devices 47cf4e6363SMichael Chan */ 48cf4e6363SMichael Chan static void bnx2i_adjust_qp_size(struct bnx2i_hba *hba) 49cf4e6363SMichael Chan { 50cf4e6363SMichael Chan u32 num_elements_per_pg; 51cf4e6363SMichael Chan 52cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_5706, &hba->cnic_dev_type) || 53cf4e6363SMichael Chan test_bit(BNX2I_NX2_DEV_5708, &hba->cnic_dev_type) || 54cf4e6363SMichael Chan test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) { 55cf4e6363SMichael Chan if (!is_power_of_2(hba->max_sqes)) 56cf4e6363SMichael Chan hba->max_sqes = rounddown_pow_of_two(hba->max_sqes); 57cf4e6363SMichael Chan 58cf4e6363SMichael Chan if (!is_power_of_2(hba->max_rqes)) 59cf4e6363SMichael Chan hba->max_rqes = rounddown_pow_of_two(hba->max_rqes); 60cf4e6363SMichael Chan } 61cf4e6363SMichael Chan 62cf4e6363SMichael Chan /* Adjust each queue size if the user selection does not 63cf4e6363SMichael Chan * yield integral num of page buffers 64cf4e6363SMichael Chan */ 65cf4e6363SMichael Chan /* adjust SQ */ 66be1fefc2SMichael Chan num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_SQ_WQE_SIZE; 67cf4e6363SMichael Chan if (hba->max_sqes < num_elements_per_pg) 68cf4e6363SMichael Chan hba->max_sqes = num_elements_per_pg; 69cf4e6363SMichael Chan else if (hba->max_sqes % num_elements_per_pg) 70cf4e6363SMichael Chan hba->max_sqes = (hba->max_sqes + num_elements_per_pg - 1) & 71cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 72cf4e6363SMichael Chan 73cf4e6363SMichael Chan /* adjust CQ */ 74be1fefc2SMichael Chan num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_CQE_SIZE; 75cf4e6363SMichael Chan if (hba->max_cqes < num_elements_per_pg) 76cf4e6363SMichael Chan hba->max_cqes = num_elements_per_pg; 77cf4e6363SMichael Chan else if (hba->max_cqes % num_elements_per_pg) 78cf4e6363SMichael Chan hba->max_cqes = (hba->max_cqes + num_elements_per_pg - 1) & 79cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 80cf4e6363SMichael Chan 81cf4e6363SMichael Chan /* adjust RQ */ 82be1fefc2SMichael Chan num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_RQ_WQE_SIZE; 83cf4e6363SMichael Chan if (hba->max_rqes < num_elements_per_pg) 84cf4e6363SMichael Chan hba->max_rqes = num_elements_per_pg; 85cf4e6363SMichael Chan else if (hba->max_rqes % num_elements_per_pg) 86cf4e6363SMichael Chan hba->max_rqes = (hba->max_rqes + num_elements_per_pg - 1) & 87cf4e6363SMichael Chan ~(num_elements_per_pg - 1); 88cf4e6363SMichael Chan } 89cf4e6363SMichael Chan 90cf4e6363SMichael Chan 91cf4e6363SMichael Chan /** 92cf4e6363SMichael Chan * bnx2i_get_link_state - get network interface link state 93cf4e6363SMichael Chan * @hba: adapter instance pointer 94cf4e6363SMichael Chan * 95cf4e6363SMichael Chan * updates adapter structure flag based on netdev state 96cf4e6363SMichael Chan */ 97cf4e6363SMichael Chan static void bnx2i_get_link_state(struct bnx2i_hba *hba) 98cf4e6363SMichael Chan { 99cf4e6363SMichael Chan if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state)) 100cf4e6363SMichael Chan set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); 101cf4e6363SMichael Chan else 102cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); 103cf4e6363SMichael Chan } 104cf4e6363SMichael Chan 105cf4e6363SMichael Chan 106cf4e6363SMichael Chan /** 107cf4e6363SMichael Chan * bnx2i_iscsi_license_error - displays iscsi license related error message 108cf4e6363SMichael Chan * @hba: adapter instance pointer 109cf4e6363SMichael Chan * @error_code: error classification 110cf4e6363SMichael Chan * 111cf4e6363SMichael Chan * Puts out an error log when driver is unable to offload iscsi connection 112cf4e6363SMichael Chan * due to license restrictions 113cf4e6363SMichael Chan */ 114cf4e6363SMichael Chan static void bnx2i_iscsi_license_error(struct bnx2i_hba *hba, u32 error_code) 115cf4e6363SMichael Chan { 116cf4e6363SMichael Chan if (error_code == ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED) 117cf4e6363SMichael Chan /* iSCSI offload not supported on this device */ 118cf4e6363SMichael Chan printk(KERN_ERR "bnx2i: iSCSI not supported, dev=%s\n", 119cf4e6363SMichael Chan hba->netdev->name); 120cf4e6363SMichael Chan if (error_code == ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED) 121cf4e6363SMichael Chan /* iSCSI offload not supported on this LOM device */ 122cf4e6363SMichael Chan printk(KERN_ERR "bnx2i: LOM is not enable to " 123cf4e6363SMichael Chan "offload iSCSI connections, dev=%s\n", 124cf4e6363SMichael Chan hba->netdev->name); 125cf4e6363SMichael Chan set_bit(ADAPTER_STATE_INIT_FAILED, &hba->adapter_state); 126cf4e6363SMichael Chan } 127cf4e6363SMichael Chan 128cf4e6363SMichael Chan 129cf4e6363SMichael Chan /** 130cf4e6363SMichael Chan * bnx2i_arm_cq_event_coalescing - arms CQ to enable EQ notification 1313f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 132cf4e6363SMichael Chan * @action: action, ARM or DISARM. For now only ARM_CQE is used 133cf4e6363SMichael Chan * 134cf4e6363SMichael Chan * Arm'ing CQ will enable chip to generate global EQ events inorder to interrupt 135cf4e6363SMichael Chan * the driver. EQ event is generated CQ index is hit or at least 1 CQ is 136cf4e6363SMichael Chan * outstanding and on chip timer expires 137cf4e6363SMichael Chan */ 138b5cf6b63SEddie Wai int bnx2i_arm_cq_event_coalescing(struct bnx2i_endpoint *ep, u8 action) 139cf4e6363SMichael Chan { 140cf4e6363SMichael Chan struct bnx2i_5771x_cq_db *cq_db; 141cf4e6363SMichael Chan u16 cq_index; 142b5cf6b63SEddie Wai u16 next_index = 0; 1438776193bSAnil Veerabhadrappa u32 num_active_cmds; 144cf4e6363SMichael Chan 1458776193bSAnil Veerabhadrappa /* Coalesce CQ entries only on 10G devices */ 146cf4e6363SMichael Chan if (!test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 147b5cf6b63SEddie Wai return 0; 148cf4e6363SMichael Chan 1498776193bSAnil Veerabhadrappa /* Do not update CQ DB multiple times before firmware writes 1508776193bSAnil Veerabhadrappa * '0xFFFF' to CQDB->SQN field. Deviation may cause spurious 1518776193bSAnil Veerabhadrappa * interrupts and other unwanted results 1528776193bSAnil Veerabhadrappa */ 1538776193bSAnil Veerabhadrappa cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt; 1549ae58e14SEddie Wai 1559ae58e14SEddie Wai if (action != CNIC_ARM_CQE_FP) 1568776193bSAnil Veerabhadrappa if (cq_db->sqn[0] && cq_db->sqn[0] != 0xFFFF) 157b5cf6b63SEddie Wai return 0; 1588776193bSAnil Veerabhadrappa 1599ae58e14SEddie Wai if (action == CNIC_ARM_CQE || action == CNIC_ARM_CQE_FP) { 160b5cf6b63SEddie Wai num_active_cmds = atomic_read(&ep->num_active_cmds); 1618776193bSAnil Veerabhadrappa if (num_active_cmds <= event_coal_min) 1628776193bSAnil Veerabhadrappa next_index = 1; 163b5cf6b63SEddie Wai else { 164b5cf6b63SEddie Wai next_index = num_active_cmds >> ep->ec_shift; 165b5cf6b63SEddie Wai if (next_index > num_active_cmds - event_coal_min) 166b5cf6b63SEddie Wai next_index = num_active_cmds - event_coal_min; 167b5cf6b63SEddie Wai } 1688776193bSAnil Veerabhadrappa if (!next_index) 1698776193bSAnil Veerabhadrappa next_index = 1; 1708776193bSAnil Veerabhadrappa cq_index = ep->qp.cqe_exp_seq_sn + next_index - 1; 1718776193bSAnil Veerabhadrappa if (cq_index > ep->qp.cqe_size * 2) 1728776193bSAnil Veerabhadrappa cq_index -= ep->qp.cqe_size * 2; 1738776193bSAnil Veerabhadrappa if (!cq_index) 174cf4e6363SMichael Chan cq_index = 1; 1758776193bSAnil Veerabhadrappa 176cf4e6363SMichael Chan cq_db->sqn[0] = cq_index; 177cf4e6363SMichael Chan } 178b5cf6b63SEddie Wai return next_index; 179cf4e6363SMichael Chan } 180cf4e6363SMichael Chan 181cf4e6363SMichael Chan 182cf4e6363SMichael Chan /** 183cf4e6363SMichael Chan * bnx2i_get_rq_buf - copy RQ buffer contents to driver buffer 184dd3273c9SLee Jones * @bnx2i_conn: iscsi connection on which RQ event occurred 185cf4e6363SMichael Chan * @ptr: driver buffer to which RQ buffer contents is to 186cf4e6363SMichael Chan * be copied 187cf4e6363SMichael Chan * @len: length of valid data inside RQ buf 188cf4e6363SMichael Chan * 189cf4e6363SMichael Chan * Copies RQ buffer contents from shared (DMA'able) memory region to 190cf4e6363SMichael Chan * driver buffer. RQ is used to DMA unsolicitated iscsi pdu's and 191cf4e6363SMichael Chan * scsi sense info 192cf4e6363SMichael Chan */ 193cf4e6363SMichael Chan void bnx2i_get_rq_buf(struct bnx2i_conn *bnx2i_conn, char *ptr, int len) 194cf4e6363SMichael Chan { 195cf4e6363SMichael Chan if (!bnx2i_conn->ep->qp.rqe_left) 196cf4e6363SMichael Chan return; 197cf4e6363SMichael Chan 198cf4e6363SMichael Chan bnx2i_conn->ep->qp.rqe_left--; 199cf4e6363SMichael Chan memcpy(ptr, (u8 *) bnx2i_conn->ep->qp.rq_cons_qe, len); 200cf4e6363SMichael Chan if (bnx2i_conn->ep->qp.rq_cons_qe == bnx2i_conn->ep->qp.rq_last_qe) { 201cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_qe = bnx2i_conn->ep->qp.rq_first_qe; 202cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_idx = 0; 203cf4e6363SMichael Chan } else { 204cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_qe++; 205cf4e6363SMichael Chan bnx2i_conn->ep->qp.rq_cons_idx++; 206cf4e6363SMichael Chan } 207cf4e6363SMichael Chan } 208cf4e6363SMichael Chan 209cf4e6363SMichael Chan 210cf4e6363SMichael Chan static void bnx2i_ring_577xx_doorbell(struct bnx2i_conn *conn) 211cf4e6363SMichael Chan { 212cf4e6363SMichael Chan struct bnx2i_5771x_dbell dbell; 213cf4e6363SMichael Chan u32 msg; 214cf4e6363SMichael Chan 215cf4e6363SMichael Chan memset(&dbell, 0, sizeof(dbell)); 216cf4e6363SMichael Chan dbell.dbell.header = (B577XX_ISCSI_CONNECTION_TYPE << 217cf4e6363SMichael Chan B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT); 218cf4e6363SMichael Chan msg = *((u32 *)&dbell); 219cf4e6363SMichael Chan /* TODO : get doorbell register mapping */ 220cf4e6363SMichael Chan writel(cpu_to_le32(msg), conn->ep->qp.ctx_base); 221cf4e6363SMichael Chan } 222cf4e6363SMichael Chan 223cf4e6363SMichael Chan 224cf4e6363SMichael Chan /** 225cf4e6363SMichael Chan * bnx2i_put_rq_buf - Replenish RQ buffer, if required ring on chip doorbell 226dd3273c9SLee Jones * @bnx2i_conn: iscsi connection on which event to post 227cf4e6363SMichael Chan * @count: number of RQ buffer being posted to chip 228cf4e6363SMichael Chan * 229cf4e6363SMichael Chan * No need to ring hardware doorbell for 57710 family of devices 230cf4e6363SMichael Chan */ 231cf4e6363SMichael Chan void bnx2i_put_rq_buf(struct bnx2i_conn *bnx2i_conn, int count) 232cf4e6363SMichael Chan { 233cf4e6363SMichael Chan struct bnx2i_5771x_sq_rq_db *rq_db; 234cf4e6363SMichael Chan u16 hi_bit = (bnx2i_conn->ep->qp.rq_prod_idx & 0x8000); 235cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 236cf4e6363SMichael Chan 237cf4e6363SMichael Chan ep->qp.rqe_left += count; 238cf4e6363SMichael Chan ep->qp.rq_prod_idx &= 0x7FFF; 239cf4e6363SMichael Chan ep->qp.rq_prod_idx += count; 240cf4e6363SMichael Chan 241cf4e6363SMichael Chan if (ep->qp.rq_prod_idx > bnx2i_conn->hba->max_rqes) { 242cf4e6363SMichael Chan ep->qp.rq_prod_idx %= bnx2i_conn->hba->max_rqes; 243cf4e6363SMichael Chan if (!hi_bit) 244cf4e6363SMichael Chan ep->qp.rq_prod_idx |= 0x8000; 245cf4e6363SMichael Chan } else 246cf4e6363SMichael Chan ep->qp.rq_prod_idx |= hi_bit; 247cf4e6363SMichael Chan 248cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 249cf4e6363SMichael Chan rq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.rq_pgtbl_virt; 250cf4e6363SMichael Chan rq_db->prod_idx = ep->qp.rq_prod_idx; 251cf4e6363SMichael Chan /* no need to ring hardware doorbell for 57710 */ 252cf4e6363SMichael Chan } else { 253cf4e6363SMichael Chan writew(ep->qp.rq_prod_idx, 254cf4e6363SMichael Chan ep->qp.ctx_base + CNIC_RECV_DOORBELL); 255cf4e6363SMichael Chan } 256cf4e6363SMichael Chan } 257cf4e6363SMichael Chan 258cf4e6363SMichael Chan 259cf4e6363SMichael Chan /** 260cf4e6363SMichael Chan * bnx2i_ring_sq_dbell - Ring SQ doorbell to wake-up the processing engine 261dd3273c9SLee Jones * @bnx2i_conn: iscsi connection to which new SQ entries belong 262cf4e6363SMichael Chan * @count: number of SQ WQEs to post 263cf4e6363SMichael Chan * 264cf4e6363SMichael Chan * SQ DB is updated in host memory and TX Doorbell is rung for 57710 family 265cf4e6363SMichael Chan * of devices. For 5706/5708/5709 new SQ WQE count is written into the 266cf4e6363SMichael Chan * doorbell register 267cf4e6363SMichael Chan */ 268cf4e6363SMichael Chan static void bnx2i_ring_sq_dbell(struct bnx2i_conn *bnx2i_conn, int count) 269cf4e6363SMichael Chan { 270cf4e6363SMichael Chan struct bnx2i_5771x_sq_rq_db *sq_db; 271cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 272cf4e6363SMichael Chan 273b5cf6b63SEddie Wai atomic_inc(&ep->num_active_cmds); 274cf4e6363SMichael Chan wmb(); /* flush SQ WQE memory before the doorbell is rung */ 275cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 276cf4e6363SMichael Chan sq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.sq_pgtbl_virt; 277cf4e6363SMichael Chan sq_db->prod_idx = ep->qp.sq_prod_idx; 278cf4e6363SMichael Chan bnx2i_ring_577xx_doorbell(bnx2i_conn); 279cf4e6363SMichael Chan } else 280cf4e6363SMichael Chan writew(count, ep->qp.ctx_base + CNIC_SEND_DOORBELL); 281cf4e6363SMichael Chan } 282cf4e6363SMichael Chan 283cf4e6363SMichael Chan 284cf4e6363SMichael Chan /** 285cf4e6363SMichael Chan * bnx2i_ring_dbell_update_sq_params - update SQ driver parameters 286dd3273c9SLee Jones * @bnx2i_conn: iscsi connection to which new SQ entries belong 287cf4e6363SMichael Chan * @count: number of SQ WQEs to post 288cf4e6363SMichael Chan * 289cf4e6363SMichael Chan * this routine will update SQ driver parameters and ring the doorbell 290cf4e6363SMichael Chan */ 291cf4e6363SMichael Chan static void bnx2i_ring_dbell_update_sq_params(struct bnx2i_conn *bnx2i_conn, 292cf4e6363SMichael Chan int count) 293cf4e6363SMichael Chan { 294cf4e6363SMichael Chan int tmp_cnt; 295cf4e6363SMichael Chan 296cf4e6363SMichael Chan if (count == 1) { 297cf4e6363SMichael Chan if (bnx2i_conn->ep->qp.sq_prod_qe == 298cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_last_qe) 299cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe = 300cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_first_qe; 301cf4e6363SMichael Chan else 302cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe++; 303cf4e6363SMichael Chan } else { 304cf4e6363SMichael Chan if ((bnx2i_conn->ep->qp.sq_prod_qe + count) <= 305cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_last_qe) 306cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe += count; 307cf4e6363SMichael Chan else { 308cf4e6363SMichael Chan tmp_cnt = bnx2i_conn->ep->qp.sq_last_qe - 309cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 310cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe = 311cf4e6363SMichael Chan &bnx2i_conn->ep->qp.sq_first_qe[count - 312cf4e6363SMichael Chan (tmp_cnt + 1)]; 313cf4e6363SMichael Chan } 314cf4e6363SMichael Chan } 315cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_idx += count; 316cf4e6363SMichael Chan /* Ring the doorbell */ 317cf4e6363SMichael Chan bnx2i_ring_sq_dbell(bnx2i_conn, bnx2i_conn->ep->qp.sq_prod_idx); 318cf4e6363SMichael Chan } 319cf4e6363SMichael Chan 320cf4e6363SMichael Chan 321cf4e6363SMichael Chan /** 322cf4e6363SMichael Chan * bnx2i_send_iscsi_login - post iSCSI login request MP WQE to hardware 323dd3273c9SLee Jones * @bnx2i_conn: iscsi connection 324dd3273c9SLee Jones * @task: transport layer's command structure pointer which is requesting 325cf4e6363SMichael Chan * a WQE to sent to chip for further processing 326cf4e6363SMichael Chan * 327cf4e6363SMichael Chan * prepare and post an iSCSI Login request WQE to CNIC firmware 328cf4e6363SMichael Chan */ 329cf4e6363SMichael Chan int bnx2i_send_iscsi_login(struct bnx2i_conn *bnx2i_conn, 330cf4e6363SMichael Chan struct iscsi_task *task) 331cf4e6363SMichael Chan { 332cf4e6363SMichael Chan struct bnx2i_login_request *login_wqe; 33312352183SNicholas Bellinger struct iscsi_login_req *login_hdr; 334cf4e6363SMichael Chan u32 dword; 335cf4e6363SMichael Chan 33612352183SNicholas Bellinger login_hdr = (struct iscsi_login_req *)task->hdr; 337cf4e6363SMichael Chan login_wqe = (struct bnx2i_login_request *) 338cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 339cf4e6363SMichael Chan 340cf4e6363SMichael Chan login_wqe->op_code = login_hdr->opcode; 341cf4e6363SMichael Chan login_wqe->op_attr = login_hdr->flags; 342cf4e6363SMichael Chan login_wqe->version_max = login_hdr->max_version; 343cf4e6363SMichael Chan login_wqe->version_min = login_hdr->min_version; 344cf4e6363SMichael Chan login_wqe->data_length = ntoh24(login_hdr->dlength); 345cf4e6363SMichael Chan login_wqe->isid_lo = *((u32 *) login_hdr->isid); 346cf4e6363SMichael Chan login_wqe->isid_hi = *((u16 *) login_hdr->isid + 2); 347cf4e6363SMichael Chan login_wqe->tsih = login_hdr->tsih; 348cf4e6363SMichael Chan login_wqe->itt = task->itt | 349cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << ISCSI_LOGIN_REQUEST_TYPE_SHIFT); 350cf4e6363SMichael Chan login_wqe->cid = login_hdr->cid; 351cf4e6363SMichael Chan 352cf4e6363SMichael Chan login_wqe->cmd_sn = be32_to_cpu(login_hdr->cmdsn); 353cf4e6363SMichael Chan login_wqe->exp_stat_sn = be32_to_cpu(login_hdr->exp_statsn); 3542e15efc7SAnil Veerabhadrappa login_wqe->flags = ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN; 355cf4e6363SMichael Chan 356cf4e6363SMichael Chan login_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma; 357cf4e6363SMichael Chan login_wqe->resp_bd_list_addr_hi = 358cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32); 359cf4e6363SMichael Chan 360cf4e6363SMichael Chan dword = ((1 << ISCSI_LOGIN_REQUEST_NUM_RESP_BDS_SHIFT) | 361cf4e6363SMichael Chan (bnx2i_conn->gen_pdu.resp_buf_size << 362cf4e6363SMichael Chan ISCSI_LOGIN_REQUEST_RESP_BUFFER_LENGTH_SHIFT)); 363cf4e6363SMichael Chan login_wqe->resp_buffer = dword; 364cf4e6363SMichael Chan login_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma; 365cf4e6363SMichael Chan login_wqe->bd_list_addr_hi = 366cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32); 367cf4e6363SMichael Chan login_wqe->num_bds = 1; 368cf4e6363SMichael Chan login_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 369cf4e6363SMichael Chan 370cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 371cf4e6363SMichael Chan return 0; 372cf4e6363SMichael Chan } 373cf4e6363SMichael Chan 374cf4e6363SMichael Chan /** 375cf4e6363SMichael Chan * bnx2i_send_iscsi_tmf - post iSCSI task management request MP WQE to hardware 376dd3273c9SLee Jones * @bnx2i_conn: iscsi connection 377cf4e6363SMichael Chan * @mtask: driver command structure which is requesting 378cf4e6363SMichael Chan * a WQE to sent to chip for further processing 379cf4e6363SMichael Chan * 380cf4e6363SMichael Chan * prepare and post an iSCSI Login request WQE to CNIC firmware 381cf4e6363SMichael Chan */ 382cf4e6363SMichael Chan int bnx2i_send_iscsi_tmf(struct bnx2i_conn *bnx2i_conn, 383cf4e6363SMichael Chan struct iscsi_task *mtask) 384cf4e6363SMichael Chan { 385cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 386cf4e6363SMichael Chan struct iscsi_tm *tmfabort_hdr; 387cf4e6363SMichael Chan struct scsi_cmnd *ref_sc; 388cf4e6363SMichael Chan struct iscsi_task *ctask; 389cf4e6363SMichael Chan struct bnx2i_tmf_request *tmfabort_wqe; 390cf4e6363SMichael Chan u32 dword; 391cf464fc5SEddie Wai u32 scsi_lun[2]; 392cf4e6363SMichael Chan 393cf4e6363SMichael Chan tmfabort_hdr = (struct iscsi_tm *)mtask->hdr; 394cf4e6363SMichael Chan tmfabort_wqe = (struct bnx2i_tmf_request *) 395cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 396cf4e6363SMichael Chan 397cf4e6363SMichael Chan tmfabort_wqe->op_code = tmfabort_hdr->opcode; 398c47b4012SEddie Wai tmfabort_wqe->op_attr = tmfabort_hdr->flags; 399cf4e6363SMichael Chan 400cf4e6363SMichael Chan tmfabort_wqe->itt = (mtask->itt | (ISCSI_TASK_TYPE_MPATH << 14)); 401cf4e6363SMichael Chan tmfabort_wqe->reserved2 = 0; 402cf4e6363SMichael Chan tmfabort_wqe->cmd_sn = be32_to_cpu(tmfabort_hdr->cmdsn); 403cf4e6363SMichael Chan 404c47b4012SEddie Wai switch (tmfabort_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) { 405c47b4012SEddie Wai case ISCSI_TM_FUNC_ABORT_TASK: 406c47b4012SEddie Wai case ISCSI_TM_FUNC_TASK_REASSIGN: 407cf4e6363SMichael Chan ctask = iscsi_itt_to_task(conn, tmfabort_hdr->rtt); 40885fef202SAnil Veerabhadrappa if (!ctask || !ctask->sc) 409cf4e6363SMichael Chan /* 410c47b4012SEddie Wai * the iscsi layer must have completed the cmd while 411cf4e6363SMichael Chan * was starting up. 41285fef202SAnil Veerabhadrappa * 413c47b4012SEddie Wai * Note: In the case of a SCSI cmd timeout, the task's 414c47b4012SEddie Wai * sc is still active; hence ctask->sc != 0 41585fef202SAnil Veerabhadrappa * In this case, the task must be aborted 416cf4e6363SMichael Chan */ 417cf4e6363SMichael Chan return 0; 41885fef202SAnil Veerabhadrappa 419cf4e6363SMichael Chan ref_sc = ctask->sc; 420cf4e6363SMichael Chan if (ref_sc->sc_data_direction == DMA_TO_DEVICE) 421c47b4012SEddie Wai dword = (ISCSI_TASK_TYPE_WRITE << 422c47b4012SEddie Wai ISCSI_CMD_REQUEST_TYPE_SHIFT); 423cf4e6363SMichael Chan else 424c47b4012SEddie Wai dword = (ISCSI_TASK_TYPE_READ << 425c47b4012SEddie Wai ISCSI_CMD_REQUEST_TYPE_SHIFT); 426c47b4012SEddie Wai tmfabort_wqe->ref_itt = (dword | 427c47b4012SEddie Wai (tmfabort_hdr->rtt & ISCSI_ITT_MASK)); 428c47b4012SEddie Wai break; 429c47b4012SEddie Wai default: 430c47b4012SEddie Wai tmfabort_wqe->ref_itt = RESERVED_ITT; 431c47b4012SEddie Wai } 432516f43a2SAndy Grover memcpy(scsi_lun, &tmfabort_hdr->lun, sizeof(struct scsi_lun)); 433cf464fc5SEddie Wai tmfabort_wqe->lun[0] = be32_to_cpu(scsi_lun[0]); 434cf464fc5SEddie Wai tmfabort_wqe->lun[1] = be32_to_cpu(scsi_lun[1]); 435cf464fc5SEddie Wai 436cf4e6363SMichael Chan tmfabort_wqe->ref_cmd_sn = be32_to_cpu(tmfabort_hdr->refcmdsn); 437cf4e6363SMichael Chan 438cf4e6363SMichael Chan tmfabort_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma; 439cf4e6363SMichael Chan tmfabort_wqe->bd_list_addr_hi = (u32) 440cf4e6363SMichael Chan ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 441cf4e6363SMichael Chan tmfabort_wqe->num_bds = 1; 442cf4e6363SMichael Chan tmfabort_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 443cf4e6363SMichael Chan 444cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 445cf4e6363SMichael Chan return 0; 446cf4e6363SMichael Chan } 447cf4e6363SMichael Chan 448cf4e6363SMichael Chan /** 44909813ba5SEddie Wai * bnx2i_send_iscsi_text - post iSCSI text WQE to hardware 450dd3273c9SLee Jones * @bnx2i_conn: iscsi connection 45109813ba5SEddie Wai * @mtask: driver command structure which is requesting 45209813ba5SEddie Wai * a WQE to sent to chip for further processing 45309813ba5SEddie Wai * 45409813ba5SEddie Wai * prepare and post an iSCSI Text request WQE to CNIC firmware 45509813ba5SEddie Wai */ 45609813ba5SEddie Wai int bnx2i_send_iscsi_text(struct bnx2i_conn *bnx2i_conn, 45709813ba5SEddie Wai struct iscsi_task *mtask) 45809813ba5SEddie Wai { 45909813ba5SEddie Wai struct bnx2i_text_request *text_wqe; 46009813ba5SEddie Wai struct iscsi_text *text_hdr; 46109813ba5SEddie Wai u32 dword; 46209813ba5SEddie Wai 46309813ba5SEddie Wai text_hdr = (struct iscsi_text *)mtask->hdr; 46409813ba5SEddie Wai text_wqe = (struct bnx2i_text_request *) bnx2i_conn->ep->qp.sq_prod_qe; 46509813ba5SEddie Wai 46609813ba5SEddie Wai memset(text_wqe, 0, sizeof(struct bnx2i_text_request)); 46709813ba5SEddie Wai 46809813ba5SEddie Wai text_wqe->op_code = text_hdr->opcode; 46909813ba5SEddie Wai text_wqe->op_attr = text_hdr->flags; 47009813ba5SEddie Wai text_wqe->data_length = ntoh24(text_hdr->dlength); 47109813ba5SEddie Wai text_wqe->itt = mtask->itt | 47209813ba5SEddie Wai (ISCSI_TASK_TYPE_MPATH << ISCSI_TEXT_REQUEST_TYPE_SHIFT); 47309813ba5SEddie Wai text_wqe->ttt = be32_to_cpu(text_hdr->ttt); 47409813ba5SEddie Wai 47509813ba5SEddie Wai text_wqe->cmd_sn = be32_to_cpu(text_hdr->cmdsn); 47609813ba5SEddie Wai 47709813ba5SEddie Wai text_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma; 47809813ba5SEddie Wai text_wqe->resp_bd_list_addr_hi = 47909813ba5SEddie Wai (u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32); 48009813ba5SEddie Wai 48109813ba5SEddie Wai dword = ((1 << ISCSI_TEXT_REQUEST_NUM_RESP_BDS_SHIFT) | 48209813ba5SEddie Wai (bnx2i_conn->gen_pdu.resp_buf_size << 48309813ba5SEddie Wai ISCSI_TEXT_REQUEST_RESP_BUFFER_LENGTH_SHIFT)); 48409813ba5SEddie Wai text_wqe->resp_buffer = dword; 48509813ba5SEddie Wai text_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma; 48609813ba5SEddie Wai text_wqe->bd_list_addr_hi = 48709813ba5SEddie Wai (u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32); 48809813ba5SEddie Wai text_wqe->num_bds = 1; 48909813ba5SEddie Wai text_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 49009813ba5SEddie Wai 49109813ba5SEddie Wai bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 49209813ba5SEddie Wai return 0; 49309813ba5SEddie Wai } 49409813ba5SEddie Wai 49509813ba5SEddie Wai 49609813ba5SEddie Wai /** 497cf4e6363SMichael Chan * bnx2i_send_iscsi_scsicmd - post iSCSI scsicmd request WQE to hardware 498dd3273c9SLee Jones * @bnx2i_conn: iscsi connection 499cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 500cf4e6363SMichael Chan * a WQE to sent to chip for further processing 501cf4e6363SMichael Chan * 502cf4e6363SMichael Chan * prepare and post an iSCSI SCSI-CMD request WQE to CNIC firmware 503cf4e6363SMichael Chan */ 504cf4e6363SMichael Chan int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *bnx2i_conn, 505cf4e6363SMichael Chan struct bnx2i_cmd *cmd) 506cf4e6363SMichael Chan { 507cf4e6363SMichael Chan struct bnx2i_cmd_request *scsi_cmd_wqe; 508cf4e6363SMichael Chan 509cf4e6363SMichael Chan scsi_cmd_wqe = (struct bnx2i_cmd_request *) 510cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 511cf4e6363SMichael Chan memcpy(scsi_cmd_wqe, &cmd->req, sizeof(struct bnx2i_cmd_request)); 512cf4e6363SMichael Chan scsi_cmd_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 513cf4e6363SMichael Chan 514cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 515cf4e6363SMichael Chan return 0; 516cf4e6363SMichael Chan } 517cf4e6363SMichael Chan 518cf4e6363SMichael Chan /** 519cf4e6363SMichael Chan * bnx2i_send_iscsi_nopout - post iSCSI NOPOUT request WQE to hardware 520dd3273c9SLee Jones * @bnx2i_conn: iscsi connection 521dd3273c9SLee Jones * @task: transport layer's command structure pointer which is 522dd3273c9SLee Jones * requesting a WQE to sent to chip for further processing 523cf4e6363SMichael Chan * @datap: payload buffer pointer 524cf4e6363SMichael Chan * @data_len: payload data length 525cf4e6363SMichael Chan * @unsol: indicated whether nopout pdu is unsolicited pdu or 526cf4e6363SMichael Chan * in response to target's NOPIN w/ TTT != FFFFFFFF 527cf4e6363SMichael Chan * 528cf4e6363SMichael Chan * prepare and post a nopout request WQE to CNIC firmware 529cf4e6363SMichael Chan */ 530cf4e6363SMichael Chan int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn, 53139304072SEddie Wai struct iscsi_task *task, 532cf4e6363SMichael Chan char *datap, int data_len, int unsol) 533cf4e6363SMichael Chan { 534cf4e6363SMichael Chan struct bnx2i_endpoint *ep = bnx2i_conn->ep; 535cf4e6363SMichael Chan struct bnx2i_nop_out_request *nopout_wqe; 536cf4e6363SMichael Chan struct iscsi_nopout *nopout_hdr; 537cf4e6363SMichael Chan 538cf4e6363SMichael Chan nopout_hdr = (struct iscsi_nopout *)task->hdr; 539cf4e6363SMichael Chan nopout_wqe = (struct bnx2i_nop_out_request *)ep->qp.sq_prod_qe; 54070e14722SEddie Wai 54170e14722SEddie Wai memset(nopout_wqe, 0x00, sizeof(struct bnx2i_nop_out_request)); 54270e14722SEddie Wai 543cf4e6363SMichael Chan nopout_wqe->op_code = nopout_hdr->opcode; 544cf4e6363SMichael Chan nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL; 545516f43a2SAndy Grover memcpy(nopout_wqe->lun, &nopout_hdr->lun, 8); 546cf4e6363SMichael Chan 547cf4e6363SMichael Chan /* 57710 requires LUN field to be swapped */ 548f35cb48eSGustavo A. R. Silva if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 549f35cb48eSGustavo A. R. Silva swap(nopout_wqe->lun[0], nopout_wqe->lun[1]); 550cf4e6363SMichael Chan 551cf4e6363SMichael Chan nopout_wqe->itt = ((u16)task->itt | 552cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << 553cf4e6363SMichael Chan ISCSI_TMF_REQUEST_TYPE_SHIFT)); 554610602f3SEddie Wai nopout_wqe->ttt = be32_to_cpu(nopout_hdr->ttt); 555cf4e6363SMichael Chan nopout_wqe->flags = 0; 556cf4e6363SMichael Chan if (!unsol) 557cf4e6363SMichael Chan nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION; 558cf4e6363SMichael Chan else if (nopout_hdr->itt == RESERVED_ITT) 559cf4e6363SMichael Chan nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION; 560cf4e6363SMichael Chan 561cf4e6363SMichael Chan nopout_wqe->cmd_sn = be32_to_cpu(nopout_hdr->cmdsn); 562cf4e6363SMichael Chan nopout_wqe->data_length = data_len; 563cf4e6363SMichael Chan if (data_len) { 564cf4e6363SMichael Chan /* handle payload data, not required in first release */ 565cf4e6363SMichael Chan printk(KERN_ALERT "NOPOUT: WARNING!! payload len != 0\n"); 566cf4e6363SMichael Chan } else { 567cf4e6363SMichael Chan nopout_wqe->bd_list_addr_lo = (u32) 568cf4e6363SMichael Chan bnx2i_conn->hba->mp_bd_dma; 569cf4e6363SMichael Chan nopout_wqe->bd_list_addr_hi = 570cf4e6363SMichael Chan (u32) ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 571cf4e6363SMichael Chan nopout_wqe->num_bds = 1; 572cf4e6363SMichael Chan } 573cf4e6363SMichael Chan nopout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 574cf4e6363SMichael Chan 575cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 576cf4e6363SMichael Chan return 0; 577cf4e6363SMichael Chan } 578cf4e6363SMichael Chan 579cf4e6363SMichael Chan 580cf4e6363SMichael Chan /** 581cf4e6363SMichael Chan * bnx2i_send_iscsi_logout - post iSCSI logout request WQE to hardware 582dd3273c9SLee Jones * @bnx2i_conn: iscsi connection 583dd3273c9SLee Jones * @task: transport layer's command structure pointer which is 584dd3273c9SLee Jones * requesting a WQE to sent to chip for further processing 585cf4e6363SMichael Chan * 586cf4e6363SMichael Chan * prepare and post logout request WQE to CNIC firmware 587cf4e6363SMichael Chan */ 588cf4e6363SMichael Chan int bnx2i_send_iscsi_logout(struct bnx2i_conn *bnx2i_conn, 589cf4e6363SMichael Chan struct iscsi_task *task) 590cf4e6363SMichael Chan { 591cf4e6363SMichael Chan struct bnx2i_logout_request *logout_wqe; 592cf4e6363SMichael Chan struct iscsi_logout *logout_hdr; 593cf4e6363SMichael Chan 594cf4e6363SMichael Chan logout_hdr = (struct iscsi_logout *)task->hdr; 595cf4e6363SMichael Chan 596cf4e6363SMichael Chan logout_wqe = (struct bnx2i_logout_request *) 597cf4e6363SMichael Chan bnx2i_conn->ep->qp.sq_prod_qe; 598cf4e6363SMichael Chan memset(logout_wqe, 0x00, sizeof(struct bnx2i_logout_request)); 599cf4e6363SMichael Chan 600cf4e6363SMichael Chan logout_wqe->op_code = logout_hdr->opcode; 601cf4e6363SMichael Chan logout_wqe->cmd_sn = be32_to_cpu(logout_hdr->cmdsn); 602cf4e6363SMichael Chan logout_wqe->op_attr = 603cf4e6363SMichael Chan logout_hdr->flags | ISCSI_LOGOUT_REQUEST_ALWAYS_ONE; 604cf4e6363SMichael Chan logout_wqe->itt = ((u16)task->itt | 605cf4e6363SMichael Chan (ISCSI_TASK_TYPE_MPATH << 606cf4e6363SMichael Chan ISCSI_LOGOUT_REQUEST_TYPE_SHIFT)); 607cf4e6363SMichael Chan logout_wqe->data_length = 0; 608cf4e6363SMichael Chan logout_wqe->cid = 0; 609cf4e6363SMichael Chan 610cf4e6363SMichael Chan logout_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma; 611cf4e6363SMichael Chan logout_wqe->bd_list_addr_hi = (u32) 612cf4e6363SMichael Chan ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); 613cf4e6363SMichael Chan logout_wqe->num_bds = 1; 614cf4e6363SMichael Chan logout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ 615cf4e6363SMichael Chan 6162eefb20dSEddie Wai bnx2i_conn->ep->state = EP_STATE_LOGOUT_SENT; 6172eefb20dSEddie Wai 618cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); 619cf4e6363SMichael Chan return 0; 620cf4e6363SMichael Chan } 621cf4e6363SMichael Chan 622cf4e6363SMichael Chan 623cf4e6363SMichael Chan /** 624cf4e6363SMichael Chan * bnx2i_update_iscsi_conn - post iSCSI logout request WQE to hardware 625cf4e6363SMichael Chan * @conn: iscsi connection which requires iscsi parameter update 626cf4e6363SMichael Chan * 627cf4e6363SMichael Chan * sends down iSCSI Conn Update request to move iSCSI conn to FFP 628cf4e6363SMichael Chan */ 629cf4e6363SMichael Chan void bnx2i_update_iscsi_conn(struct iscsi_conn *conn) 630cf4e6363SMichael Chan { 631cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn = conn->dd_data; 632cf4e6363SMichael Chan struct bnx2i_hba *hba = bnx2i_conn->hba; 633cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 634cf4e6363SMichael Chan struct iscsi_kwqe_conn_update *update_wqe; 635cf4e6363SMichael Chan struct iscsi_kwqe_conn_update conn_update_kwqe; 636cf4e6363SMichael Chan 637cf4e6363SMichael Chan update_wqe = &conn_update_kwqe; 638cf4e6363SMichael Chan 639cf4e6363SMichael Chan update_wqe->hdr.op_code = ISCSI_KWQE_OPCODE_UPDATE_CONN; 640cf4e6363SMichael Chan update_wqe->hdr.flags = 641cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 642cf4e6363SMichael Chan 643cf4e6363SMichael Chan /* 5771x requires conn context id to be passed as is */ 644cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &bnx2i_conn->ep->hba->cnic_dev_type)) 645cf4e6363SMichael Chan update_wqe->context_id = bnx2i_conn->ep->ep_cid; 646cf4e6363SMichael Chan else 647cf4e6363SMichael Chan update_wqe->context_id = (bnx2i_conn->ep->ep_cid >> 7); 648cf4e6363SMichael Chan update_wqe->conn_flags = 0; 649cf4e6363SMichael Chan if (conn->hdrdgst_en) 650cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST; 651cf4e6363SMichael Chan if (conn->datadgst_en) 652cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST; 653cf4e6363SMichael Chan if (conn->session->initial_r2t_en) 654cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T; 655cf4e6363SMichael Chan if (conn->session->imm_data_en) 656cf4e6363SMichael Chan update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA; 657cf4e6363SMichael Chan 658cf4e6363SMichael Chan update_wqe->max_send_pdu_length = conn->max_xmit_dlength; 659cf4e6363SMichael Chan update_wqe->max_recv_pdu_length = conn->max_recv_dlength; 660cf4e6363SMichael Chan update_wqe->first_burst_length = conn->session->first_burst; 661cf4e6363SMichael Chan update_wqe->max_burst_length = conn->session->max_burst; 662cf4e6363SMichael Chan update_wqe->exp_stat_sn = conn->exp_statsn; 663cf4e6363SMichael Chan update_wqe->max_outstanding_r2ts = conn->session->max_r2t; 664cf4e6363SMichael Chan update_wqe->session_error_recovery_level = conn->session->erl; 665cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, conn, 666cf4e6363SMichael Chan "bnx2i: conn update - MBL 0x%x FBL 0x%x" 667cf4e6363SMichael Chan "MRDSL_I 0x%x MRDSL_T 0x%x \n", 668cf4e6363SMichael Chan update_wqe->max_burst_length, 669cf4e6363SMichael Chan update_wqe->first_burst_length, 670cf4e6363SMichael Chan update_wqe->max_recv_pdu_length, 671cf4e6363SMichael Chan update_wqe->max_send_pdu_length); 672cf4e6363SMichael Chan 673cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) update_wqe; 674cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 675cf4e6363SMichael Chan hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1); 676cf4e6363SMichael Chan } 677cf4e6363SMichael Chan 678cf4e6363SMichael Chan 679cf4e6363SMichael Chan /** 680cf4e6363SMichael Chan * bnx2i_ep_ofld_timer - post iSCSI logout request WQE to hardware 681dd3273c9SLee Jones * @t: timer context used to fetch the endpoint (transport 682dd3273c9SLee Jones * handle) structure pointer 683cf4e6363SMichael Chan * 684cf4e6363SMichael Chan * routine to handle connection offload/destroy request timeout 685cf4e6363SMichael Chan */ 686abef7510SKees Cook void bnx2i_ep_ofld_timer(struct timer_list *t) 687cf4e6363SMichael Chan { 688abef7510SKees Cook struct bnx2i_endpoint *ep = from_timer(ep, t, ofld_timer); 689cf4e6363SMichael Chan 690cf4e6363SMichael Chan if (ep->state == EP_STATE_OFLD_START) { 691cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_OFLD timeout\n"); 692cf4e6363SMichael Chan ep->state = EP_STATE_OFLD_FAILED; 693cf4e6363SMichael Chan } else if (ep->state == EP_STATE_DISCONN_START) { 694cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_DISCON timeout\n"); 695cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_TIMEDOUT; 696cf4e6363SMichael Chan } else if (ep->state == EP_STATE_CLEANUP_START) { 697cf4e6363SMichael Chan printk(KERN_ALERT "ofld_timer: CONN_CLEANUP timeout\n"); 698cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_FAILED; 699cf4e6363SMichael Chan } 700cf4e6363SMichael Chan 701cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 702cf4e6363SMichael Chan } 703cf4e6363SMichael Chan 704cf4e6363SMichael Chan 705cf4e6363SMichael Chan static int bnx2i_power_of2(u32 val) 706cf4e6363SMichael Chan { 707cf4e6363SMichael Chan u32 power = 0; 708cf4e6363SMichael Chan if (val & (val - 1)) 709cf4e6363SMichael Chan return power; 710cf4e6363SMichael Chan val--; 711cf4e6363SMichael Chan while (val) { 712cf4e6363SMichael Chan val = val >> 1; 713cf4e6363SMichael Chan power++; 714cf4e6363SMichael Chan } 715cf4e6363SMichael Chan return power; 716cf4e6363SMichael Chan } 717cf4e6363SMichael Chan 718cf4e6363SMichael Chan 719cf4e6363SMichael Chan /** 720cf4e6363SMichael Chan * bnx2i_send_cmd_cleanup_req - send iscsi cmd context clean-up request 721cf4e6363SMichael Chan * @hba: adapter structure pointer 722cf4e6363SMichael Chan * @cmd: driver command structure which is requesting 723cf4e6363SMichael Chan * a WQE to sent to chip for further processing 724cf4e6363SMichael Chan * 725cf4e6363SMichael Chan * prepares and posts CONN_OFLD_REQ1/2 KWQE 726cf4e6363SMichael Chan */ 727cf4e6363SMichael Chan void bnx2i_send_cmd_cleanup_req(struct bnx2i_hba *hba, struct bnx2i_cmd *cmd) 728cf4e6363SMichael Chan { 729cf4e6363SMichael Chan struct bnx2i_cleanup_request *cmd_cleanup; 730cf4e6363SMichael Chan 731cf4e6363SMichael Chan cmd_cleanup = 732cf4e6363SMichael Chan (struct bnx2i_cleanup_request *)cmd->conn->ep->qp.sq_prod_qe; 733cf4e6363SMichael Chan memset(cmd_cleanup, 0x00, sizeof(struct bnx2i_cleanup_request)); 734cf4e6363SMichael Chan 735cf4e6363SMichael Chan cmd_cleanup->op_code = ISCSI_OPCODE_CLEANUP_REQUEST; 736cf4e6363SMichael Chan cmd_cleanup->itt = cmd->req.itt; 737cf4e6363SMichael Chan cmd_cleanup->cq_index = 0; /* CQ# used for completion, 5771x only */ 738cf4e6363SMichael Chan 739cf4e6363SMichael Chan bnx2i_ring_dbell_update_sq_params(cmd->conn, 1); 740cf4e6363SMichael Chan } 741cf4e6363SMichael Chan 742cf4e6363SMichael Chan 743cf4e6363SMichael Chan /** 744cf4e6363SMichael Chan * bnx2i_send_conn_destroy - initiates iscsi connection teardown process 745cf4e6363SMichael Chan * @hba: adapter structure pointer 7463f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 747cf4e6363SMichael Chan * 748cf4e6363SMichael Chan * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE to initiate 749cf4e6363SMichael Chan * iscsi connection context clean-up process 750cf4e6363SMichael Chan */ 751bee34877SEddie Wai int bnx2i_send_conn_destroy(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 752cf4e6363SMichael Chan { 753cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 754cf4e6363SMichael Chan struct iscsi_kwqe_conn_destroy conn_cleanup; 755bee34877SEddie Wai int rc = -EINVAL; 756cf4e6363SMichael Chan 757cf4e6363SMichael Chan memset(&conn_cleanup, 0x00, sizeof(struct iscsi_kwqe_conn_destroy)); 758cf4e6363SMichael Chan 759cf4e6363SMichael Chan conn_cleanup.hdr.op_code = ISCSI_KWQE_OPCODE_DESTROY_CONN; 760cf4e6363SMichael Chan conn_cleanup.hdr.flags = 761cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 762cf4e6363SMichael Chan /* 5771x requires conn context id to be passed as is */ 763cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 764cf4e6363SMichael Chan conn_cleanup.context_id = ep->ep_cid; 765cf4e6363SMichael Chan else 766cf4e6363SMichael Chan conn_cleanup.context_id = (ep->ep_cid >> 7); 767cf4e6363SMichael Chan 768cf4e6363SMichael Chan conn_cleanup.reserved0 = (u16)ep->ep_iscsi_cid; 769cf4e6363SMichael Chan 770cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &conn_cleanup; 771cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 772bee34877SEddie Wai rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1); 773bee34877SEddie Wai 774bee34877SEddie Wai return rc; 775cf4e6363SMichael Chan } 776cf4e6363SMichael Chan 777cf4e6363SMichael Chan 778cf4e6363SMichael Chan /** 779cf4e6363SMichael Chan * bnx2i_570x_send_conn_ofld_req - initiates iscsi conn context setup process 780cf4e6363SMichael Chan * @hba: adapter structure pointer 7813f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 782cf4e6363SMichael Chan * 783cf4e6363SMichael Chan * 5706/5708/5709 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE 784cf4e6363SMichael Chan */ 785bee34877SEddie Wai static int bnx2i_570x_send_conn_ofld_req(struct bnx2i_hba *hba, 786cf4e6363SMichael Chan struct bnx2i_endpoint *ep) 787cf4e6363SMichael Chan { 788cf4e6363SMichael Chan struct kwqe *kwqe_arr[2]; 789cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload1 ofld_req1; 790cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload2 ofld_req2; 791cf4e6363SMichael Chan dma_addr_t dma_addr; 792cf4e6363SMichael Chan int num_kwqes = 2; 793cf4e6363SMichael Chan u32 *ptbl; 794bee34877SEddie Wai int rc = -EINVAL; 795cf4e6363SMichael Chan 796cf4e6363SMichael Chan ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1; 797cf4e6363SMichael Chan ofld_req1.hdr.flags = 798cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 799cf4e6363SMichael Chan 800cf4e6363SMichael Chan ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid; 801cf4e6363SMichael Chan 802cf4e6363SMichael Chan dma_addr = ep->qp.sq_pgtbl_phys; 803cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_lo = (u32) dma_addr; 804cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 805cf4e6363SMichael Chan 806cf4e6363SMichael Chan dma_addr = ep->qp.cq_pgtbl_phys; 807cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_lo = (u32) dma_addr; 808cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 809cf4e6363SMichael Chan 810cf4e6363SMichael Chan ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2; 811cf4e6363SMichael Chan ofld_req2.hdr.flags = 812cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 813cf4e6363SMichael Chan 814cf4e6363SMichael Chan dma_addr = ep->qp.rq_pgtbl_phys; 815cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_lo = (u32) dma_addr; 816cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 817cf4e6363SMichael Chan 818cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.sq_pgtbl_virt; 819cf4e6363SMichael Chan 820cf4e6363SMichael Chan ofld_req2.sq_first_pte.hi = *ptbl++; 821cf4e6363SMichael Chan ofld_req2.sq_first_pte.lo = *ptbl; 822cf4e6363SMichael Chan 823cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.cq_pgtbl_virt; 824cf4e6363SMichael Chan ofld_req2.cq_first_pte.hi = *ptbl++; 825cf4e6363SMichael Chan ofld_req2.cq_first_pte.lo = *ptbl; 826cf4e6363SMichael Chan 827cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &ofld_req1; 828cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &ofld_req2; 829cf4e6363SMichael Chan ofld_req2.num_additional_wqes = 0; 830cf4e6363SMichael Chan 831cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 832bee34877SEddie Wai rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 833bee34877SEddie Wai 834bee34877SEddie Wai return rc; 835cf4e6363SMichael Chan } 836cf4e6363SMichael Chan 837cf4e6363SMichael Chan 838cf4e6363SMichael Chan /** 839cf4e6363SMichael Chan * bnx2i_5771x_send_conn_ofld_req - initiates iscsi connection context creation 840cf4e6363SMichael Chan * @hba: adapter structure pointer 8413f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 842cf4e6363SMichael Chan * 843cf4e6363SMichael Chan * 57710 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE 844cf4e6363SMichael Chan */ 845bee34877SEddie Wai static int bnx2i_5771x_send_conn_ofld_req(struct bnx2i_hba *hba, 846cf4e6363SMichael Chan struct bnx2i_endpoint *ep) 847cf4e6363SMichael Chan { 848cf4e6363SMichael Chan struct kwqe *kwqe_arr[5]; 849cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload1 ofld_req1; 850cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload2 ofld_req2; 851cf4e6363SMichael Chan struct iscsi_kwqe_conn_offload3 ofld_req3[1]; 852cf4e6363SMichael Chan dma_addr_t dma_addr; 853cf4e6363SMichael Chan int num_kwqes = 2; 854cf4e6363SMichael Chan u32 *ptbl; 855bee34877SEddie Wai int rc = -EINVAL; 856cf4e6363SMichael Chan 857cf4e6363SMichael Chan ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1; 858cf4e6363SMichael Chan ofld_req1.hdr.flags = 859cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 860cf4e6363SMichael Chan 861cf4e6363SMichael Chan ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid; 862cf4e6363SMichael Chan 863cf4e6363SMichael Chan dma_addr = ep->qp.sq_pgtbl_phys + ISCSI_SQ_DB_SIZE; 864cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_lo = (u32) dma_addr; 865cf4e6363SMichael Chan ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 866cf4e6363SMichael Chan 867cf4e6363SMichael Chan dma_addr = ep->qp.cq_pgtbl_phys + ISCSI_CQ_DB_SIZE; 868cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_lo = (u32) dma_addr; 869cf4e6363SMichael Chan ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 870cf4e6363SMichael Chan 871cf4e6363SMichael Chan ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2; 872cf4e6363SMichael Chan ofld_req2.hdr.flags = 873cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 874cf4e6363SMichael Chan 875cf4e6363SMichael Chan dma_addr = ep->qp.rq_pgtbl_phys + ISCSI_RQ_DB_SIZE; 876cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_lo = (u32) dma_addr; 877cf4e6363SMichael Chan ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); 878cf4e6363SMichael Chan 879cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE); 880cf4e6363SMichael Chan ofld_req2.sq_first_pte.hi = *ptbl++; 881cf4e6363SMichael Chan ofld_req2.sq_first_pte.lo = *ptbl; 882cf4e6363SMichael Chan 883cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE); 884cf4e6363SMichael Chan ofld_req2.cq_first_pte.hi = *ptbl++; 885cf4e6363SMichael Chan ofld_req2.cq_first_pte.lo = *ptbl; 886cf4e6363SMichael Chan 887cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &ofld_req1; 888cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &ofld_req2; 889cf4e6363SMichael Chan 890cf4e6363SMichael Chan ofld_req2.num_additional_wqes = 1; 891cf4e6363SMichael Chan memset(ofld_req3, 0x00, sizeof(ofld_req3[0])); 892cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE); 893cf4e6363SMichael Chan ofld_req3[0].qp_first_pte[0].hi = *ptbl++; 894cf4e6363SMichael Chan ofld_req3[0].qp_first_pte[0].lo = *ptbl; 895cf4e6363SMichael Chan 896cf4e6363SMichael Chan kwqe_arr[2] = (struct kwqe *) ofld_req3; 897cf4e6363SMichael Chan /* need if we decide to go with multiple KCQE's per conn */ 898cf4e6363SMichael Chan num_kwqes += 1; 899cf4e6363SMichael Chan 900cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 901bee34877SEddie Wai rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 902bee34877SEddie Wai 903bee34877SEddie Wai return rc; 904cf4e6363SMichael Chan } 905cf4e6363SMichael Chan 906cf4e6363SMichael Chan /** 907cf4e6363SMichael Chan * bnx2i_send_conn_ofld_req - initiates iscsi connection context setup process 908cf4e6363SMichael Chan * 909cf4e6363SMichael Chan * @hba: adapter structure pointer 9103f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 911cf4e6363SMichael Chan * 912cf4e6363SMichael Chan * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE 913cf4e6363SMichael Chan */ 914bee34877SEddie Wai int bnx2i_send_conn_ofld_req(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 915cf4e6363SMichael Chan { 916bee34877SEddie Wai int rc; 917bee34877SEddie Wai 918cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) 919bee34877SEddie Wai rc = bnx2i_5771x_send_conn_ofld_req(hba, ep); 920cf4e6363SMichael Chan else 921bee34877SEddie Wai rc = bnx2i_570x_send_conn_ofld_req(hba, ep); 922bee34877SEddie Wai 923bee34877SEddie Wai return rc; 924cf4e6363SMichael Chan } 925cf4e6363SMichael Chan 926cf4e6363SMichael Chan 927cf4e6363SMichael Chan /** 928cf4e6363SMichael Chan * setup_qp_page_tables - iscsi QP page table setup function 9293f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 930cf4e6363SMichael Chan * 931cf4e6363SMichael Chan * Sets up page tables for SQ/RQ/CQ, 1G/sec (5706/5708/5709) devices requires 932cf4e6363SMichael Chan * 64-bit address in big endian format. Whereas 10G/sec (57710) requires 933cf4e6363SMichael Chan * PT in little endian format 934cf4e6363SMichael Chan */ 935cf4e6363SMichael Chan static void setup_qp_page_tables(struct bnx2i_endpoint *ep) 936cf4e6363SMichael Chan { 937cf4e6363SMichael Chan int num_pages; 938cf4e6363SMichael Chan u32 *ptbl; 939cf4e6363SMichael Chan dma_addr_t page; 940cf4e6363SMichael Chan int cnic_dev_10g; 941cf4e6363SMichael Chan 942cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) 943cf4e6363SMichael Chan cnic_dev_10g = 1; 944cf4e6363SMichael Chan else 945cf4e6363SMichael Chan cnic_dev_10g = 0; 946cf4e6363SMichael Chan 947cf4e6363SMichael Chan /* SQ page table */ 948cf4e6363SMichael Chan memset(ep->qp.sq_pgtbl_virt, 0, ep->qp.sq_pgtbl_size); 949be1fefc2SMichael Chan num_pages = ep->qp.sq_mem_size / CNIC_PAGE_SIZE; 950cf4e6363SMichael Chan page = ep->qp.sq_phys; 951cf4e6363SMichael Chan 952cf4e6363SMichael Chan if (cnic_dev_10g) 953cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE); 954cf4e6363SMichael Chan else 955cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.sq_pgtbl_virt; 956cf4e6363SMichael Chan while (num_pages--) { 957cf4e6363SMichael Chan if (cnic_dev_10g) { 958cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 959cf4e6363SMichael Chan *ptbl = (u32) page; 960cf4e6363SMichael Chan ptbl++; 961cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 962cf4e6363SMichael Chan ptbl++; 963be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 964cf4e6363SMichael Chan } else { 965cf4e6363SMichael Chan /* PTE is written in big endian format for 966cf4e6363SMichael Chan * 5706/5708/5709 devices */ 967cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 968cf4e6363SMichael Chan ptbl++; 969cf4e6363SMichael Chan *ptbl = (u32) page; 970cf4e6363SMichael Chan ptbl++; 971be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 972cf4e6363SMichael Chan } 973cf4e6363SMichael Chan } 974cf4e6363SMichael Chan 975cf4e6363SMichael Chan /* RQ page table */ 976cf4e6363SMichael Chan memset(ep->qp.rq_pgtbl_virt, 0, ep->qp.rq_pgtbl_size); 977be1fefc2SMichael Chan num_pages = ep->qp.rq_mem_size / CNIC_PAGE_SIZE; 978cf4e6363SMichael Chan page = ep->qp.rq_phys; 979cf4e6363SMichael Chan 980cf4e6363SMichael Chan if (cnic_dev_10g) 981cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE); 982cf4e6363SMichael Chan else 983cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.rq_pgtbl_virt; 984cf4e6363SMichael Chan while (num_pages--) { 985cf4e6363SMichael Chan if (cnic_dev_10g) { 986cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 987cf4e6363SMichael Chan *ptbl = (u32) page; 988cf4e6363SMichael Chan ptbl++; 989cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 990cf4e6363SMichael Chan ptbl++; 991be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 992cf4e6363SMichael Chan } else { 993cf4e6363SMichael Chan /* PTE is written in big endian format for 994cf4e6363SMichael Chan * 5706/5708/5709 devices */ 995cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 996cf4e6363SMichael Chan ptbl++; 997cf4e6363SMichael Chan *ptbl = (u32) page; 998cf4e6363SMichael Chan ptbl++; 999be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 1000cf4e6363SMichael Chan } 1001cf4e6363SMichael Chan } 1002cf4e6363SMichael Chan 1003cf4e6363SMichael Chan /* CQ page table */ 1004cf4e6363SMichael Chan memset(ep->qp.cq_pgtbl_virt, 0, ep->qp.cq_pgtbl_size); 1005be1fefc2SMichael Chan num_pages = ep->qp.cq_mem_size / CNIC_PAGE_SIZE; 1006cf4e6363SMichael Chan page = ep->qp.cq_phys; 1007cf4e6363SMichael Chan 1008cf4e6363SMichael Chan if (cnic_dev_10g) 1009cf4e6363SMichael Chan ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE); 1010cf4e6363SMichael Chan else 1011cf4e6363SMichael Chan ptbl = (u32 *) ep->qp.cq_pgtbl_virt; 1012cf4e6363SMichael Chan while (num_pages--) { 1013cf4e6363SMichael Chan if (cnic_dev_10g) { 1014cf4e6363SMichael Chan /* PTE is written in little endian format for 57710 */ 1015cf4e6363SMichael Chan *ptbl = (u32) page; 1016cf4e6363SMichael Chan ptbl++; 1017cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 1018cf4e6363SMichael Chan ptbl++; 1019be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 1020cf4e6363SMichael Chan } else { 1021cf4e6363SMichael Chan /* PTE is written in big endian format for 1022cf4e6363SMichael Chan * 5706/5708/5709 devices */ 1023cf4e6363SMichael Chan *ptbl = (u32) ((u64) page >> 32); 1024cf4e6363SMichael Chan ptbl++; 1025cf4e6363SMichael Chan *ptbl = (u32) page; 1026cf4e6363SMichael Chan ptbl++; 1027be1fefc2SMichael Chan page += CNIC_PAGE_SIZE; 1028cf4e6363SMichael Chan } 1029cf4e6363SMichael Chan } 1030cf4e6363SMichael Chan } 1031cf4e6363SMichael Chan 1032cf4e6363SMichael Chan 1033cf4e6363SMichael Chan /** 1034cf4e6363SMichael Chan * bnx2i_alloc_qp_resc - allocates required resources for QP. 1035cf4e6363SMichael Chan * @hba: adapter structure pointer 10363f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 1037cf4e6363SMichael Chan * 1038cf4e6363SMichael Chan * Allocate QP (transport layer for iSCSI connection) resources, DMA'able 1039cf4e6363SMichael Chan * memory for SQ/RQ/CQ and page tables. EP structure elements such 1040cf4e6363SMichael Chan * as producer/consumer indexes/pointers, queue sizes and page table 1041cf4e6363SMichael Chan * contents are setup 1042cf4e6363SMichael Chan */ 1043cf4e6363SMichael Chan int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 1044cf4e6363SMichael Chan { 1045cf4e6363SMichael Chan struct bnx2i_5771x_cq_db *cq_db; 1046cf4e6363SMichael Chan 1047cf4e6363SMichael Chan ep->hba = hba; 1048cf4e6363SMichael Chan ep->conn = NULL; 1049cf4e6363SMichael Chan ep->ep_cid = ep->ep_iscsi_cid = ep->ep_pg_cid = 0; 1050cf4e6363SMichael Chan 1051cf4e6363SMichael Chan /* Allocate page table memory for SQ which is page aligned */ 1052cf4e6363SMichael Chan ep->qp.sq_mem_size = hba->max_sqes * BNX2I_SQ_WQE_SIZE; 1053cf4e6363SMichael Chan ep->qp.sq_mem_size = 1054be1fefc2SMichael Chan (ep->qp.sq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1055cf4e6363SMichael Chan ep->qp.sq_pgtbl_size = 1056be1fefc2SMichael Chan (ep->qp.sq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *); 1057cf4e6363SMichael Chan ep->qp.sq_pgtbl_size = 1058be1fefc2SMichael Chan (ep->qp.sq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1059cf4e6363SMichael Chan 1060cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt = 1061cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size, 1062cf4e6363SMichael Chan &ep->qp.sq_pgtbl_phys, GFP_KERNEL); 1063cf4e6363SMichael Chan if (!ep->qp.sq_pgtbl_virt) { 1064cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc SQ PT mem (%d)\n", 1065cf4e6363SMichael Chan ep->qp.sq_pgtbl_size); 1066cf4e6363SMichael Chan goto mem_alloc_err; 1067cf4e6363SMichael Chan } 1068cf4e6363SMichael Chan 1069cf4e6363SMichael Chan /* Allocate memory area for actual SQ element */ 1070cf4e6363SMichael Chan ep->qp.sq_virt = 1071750afb08SLuis Chamberlain dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size, 1072cf4e6363SMichael Chan &ep->qp.sq_phys, GFP_KERNEL); 1073cf4e6363SMichael Chan if (!ep->qp.sq_virt) { 1074cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc SQ BD memory %d\n", 1075cf4e6363SMichael Chan ep->qp.sq_mem_size); 1076cf4e6363SMichael Chan goto mem_alloc_err; 1077cf4e6363SMichael Chan } 1078cf4e6363SMichael Chan 1079cf4e6363SMichael Chan ep->qp.sq_first_qe = ep->qp.sq_virt; 1080cf4e6363SMichael Chan ep->qp.sq_prod_qe = ep->qp.sq_first_qe; 1081cf4e6363SMichael Chan ep->qp.sq_cons_qe = ep->qp.sq_first_qe; 1082cf4e6363SMichael Chan ep->qp.sq_last_qe = &ep->qp.sq_first_qe[hba->max_sqes - 1]; 1083cf4e6363SMichael Chan ep->qp.sq_prod_idx = 0; 1084cf4e6363SMichael Chan ep->qp.sq_cons_idx = 0; 1085cf4e6363SMichael Chan ep->qp.sqe_left = hba->max_sqes; 1086cf4e6363SMichael Chan 1087cf4e6363SMichael Chan /* Allocate page table memory for CQ which is page aligned */ 1088cf4e6363SMichael Chan ep->qp.cq_mem_size = hba->max_cqes * BNX2I_CQE_SIZE; 1089cf4e6363SMichael Chan ep->qp.cq_mem_size = 1090be1fefc2SMichael Chan (ep->qp.cq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1091cf4e6363SMichael Chan ep->qp.cq_pgtbl_size = 1092be1fefc2SMichael Chan (ep->qp.cq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *); 1093cf4e6363SMichael Chan ep->qp.cq_pgtbl_size = 1094be1fefc2SMichael Chan (ep->qp.cq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1095cf4e6363SMichael Chan 1096cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt = 1097cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size, 1098cf4e6363SMichael Chan &ep->qp.cq_pgtbl_phys, GFP_KERNEL); 1099cf4e6363SMichael Chan if (!ep->qp.cq_pgtbl_virt) { 1100cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc CQ PT memory %d\n", 1101cf4e6363SMichael Chan ep->qp.cq_pgtbl_size); 1102cf4e6363SMichael Chan goto mem_alloc_err; 1103cf4e6363SMichael Chan } 1104cf4e6363SMichael Chan 1105cf4e6363SMichael Chan /* Allocate memory area for actual CQ element */ 1106cf4e6363SMichael Chan ep->qp.cq_virt = 1107750afb08SLuis Chamberlain dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size, 1108cf4e6363SMichael Chan &ep->qp.cq_phys, GFP_KERNEL); 1109cf4e6363SMichael Chan if (!ep->qp.cq_virt) { 1110cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc CQ BD memory %d\n", 1111cf4e6363SMichael Chan ep->qp.cq_mem_size); 1112cf4e6363SMichael Chan goto mem_alloc_err; 1113cf4e6363SMichael Chan } 1114cf4e6363SMichael Chan 1115cf4e6363SMichael Chan ep->qp.cq_first_qe = ep->qp.cq_virt; 1116cf4e6363SMichael Chan ep->qp.cq_prod_qe = ep->qp.cq_first_qe; 1117cf4e6363SMichael Chan ep->qp.cq_cons_qe = ep->qp.cq_first_qe; 1118cf4e6363SMichael Chan ep->qp.cq_last_qe = &ep->qp.cq_first_qe[hba->max_cqes - 1]; 1119cf4e6363SMichael Chan ep->qp.cq_prod_idx = 0; 1120cf4e6363SMichael Chan ep->qp.cq_cons_idx = 0; 1121cf4e6363SMichael Chan ep->qp.cqe_left = hba->max_cqes; 1122cf4e6363SMichael Chan ep->qp.cqe_exp_seq_sn = ISCSI_INITIAL_SN; 1123cf4e6363SMichael Chan ep->qp.cqe_size = hba->max_cqes; 1124cf4e6363SMichael Chan 1125cf4e6363SMichael Chan /* Invalidate all EQ CQE index, req only for 57710 */ 1126cf4e6363SMichael Chan cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt; 1127cf4e6363SMichael Chan memset(cq_db->sqn, 0xFF, sizeof(cq_db->sqn[0]) * BNX2X_MAX_CQS); 1128cf4e6363SMichael Chan 1129cf4e6363SMichael Chan /* Allocate page table memory for RQ which is page aligned */ 1130cf4e6363SMichael Chan ep->qp.rq_mem_size = hba->max_rqes * BNX2I_RQ_WQE_SIZE; 1131cf4e6363SMichael Chan ep->qp.rq_mem_size = 1132be1fefc2SMichael Chan (ep->qp.rq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1133cf4e6363SMichael Chan ep->qp.rq_pgtbl_size = 1134be1fefc2SMichael Chan (ep->qp.rq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *); 1135cf4e6363SMichael Chan ep->qp.rq_pgtbl_size = 1136be1fefc2SMichael Chan (ep->qp.rq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK; 1137cf4e6363SMichael Chan 1138cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt = 1139cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size, 1140cf4e6363SMichael Chan &ep->qp.rq_pgtbl_phys, GFP_KERNEL); 1141cf4e6363SMichael Chan if (!ep->qp.rq_pgtbl_virt) { 1142cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc RQ PT mem %d\n", 1143cf4e6363SMichael Chan ep->qp.rq_pgtbl_size); 1144cf4e6363SMichael Chan goto mem_alloc_err; 1145cf4e6363SMichael Chan } 1146cf4e6363SMichael Chan 1147cf4e6363SMichael Chan /* Allocate memory area for actual RQ element */ 1148cf4e6363SMichael Chan ep->qp.rq_virt = 1149cf4e6363SMichael Chan dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size, 1150cf4e6363SMichael Chan &ep->qp.rq_phys, GFP_KERNEL); 1151cf4e6363SMichael Chan if (!ep->qp.rq_virt) { 1152cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unable to alloc RQ BD memory %d\n", 1153cf4e6363SMichael Chan ep->qp.rq_mem_size); 1154cf4e6363SMichael Chan goto mem_alloc_err; 1155cf4e6363SMichael Chan } 1156cf4e6363SMichael Chan 1157cf4e6363SMichael Chan ep->qp.rq_first_qe = ep->qp.rq_virt; 1158cf4e6363SMichael Chan ep->qp.rq_prod_qe = ep->qp.rq_first_qe; 1159cf4e6363SMichael Chan ep->qp.rq_cons_qe = ep->qp.rq_first_qe; 1160cf4e6363SMichael Chan ep->qp.rq_last_qe = &ep->qp.rq_first_qe[hba->max_rqes - 1]; 1161cf4e6363SMichael Chan ep->qp.rq_prod_idx = 0x8000; 1162cf4e6363SMichael Chan ep->qp.rq_cons_idx = 0; 1163cf4e6363SMichael Chan ep->qp.rqe_left = hba->max_rqes; 1164cf4e6363SMichael Chan 1165cf4e6363SMichael Chan setup_qp_page_tables(ep); 1166cf4e6363SMichael Chan 1167cf4e6363SMichael Chan return 0; 1168cf4e6363SMichael Chan 1169cf4e6363SMichael Chan mem_alloc_err: 1170cf4e6363SMichael Chan bnx2i_free_qp_resc(hba, ep); 1171cf4e6363SMichael Chan return -ENOMEM; 1172cf4e6363SMichael Chan } 1173cf4e6363SMichael Chan 1174cf4e6363SMichael Chan 1175cf4e6363SMichael Chan 1176cf4e6363SMichael Chan /** 1177cf4e6363SMichael Chan * bnx2i_free_qp_resc - free memory resources held by QP 1178cf4e6363SMichael Chan * @hba: adapter structure pointer 11793f79410cSMaxime Jayat * @ep: endpoint (transport identifier) structure 1180cf4e6363SMichael Chan * 1181cf4e6363SMichael Chan * Free QP resources - SQ/RQ/CQ memory and page tables. 1182cf4e6363SMichael Chan */ 1183cf4e6363SMichael Chan void bnx2i_free_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) 1184cf4e6363SMichael Chan { 1185cf4e6363SMichael Chan if (ep->qp.ctx_base) { 1186cf4e6363SMichael Chan iounmap(ep->qp.ctx_base); 1187cf4e6363SMichael Chan ep->qp.ctx_base = NULL; 1188cf4e6363SMichael Chan } 1189cf4e6363SMichael Chan /* Free SQ mem */ 1190cf4e6363SMichael Chan if (ep->qp.sq_pgtbl_virt) { 1191cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size, 1192cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt, ep->qp.sq_pgtbl_phys); 1193cf4e6363SMichael Chan ep->qp.sq_pgtbl_virt = NULL; 1194cf4e6363SMichael Chan ep->qp.sq_pgtbl_phys = 0; 1195cf4e6363SMichael Chan } 1196cf4e6363SMichael Chan if (ep->qp.sq_virt) { 1197cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size, 1198cf4e6363SMichael Chan ep->qp.sq_virt, ep->qp.sq_phys); 1199cf4e6363SMichael Chan ep->qp.sq_virt = NULL; 1200cf4e6363SMichael Chan ep->qp.sq_phys = 0; 1201cf4e6363SMichael Chan } 1202cf4e6363SMichael Chan 1203cf4e6363SMichael Chan /* Free RQ mem */ 1204cf4e6363SMichael Chan if (ep->qp.rq_pgtbl_virt) { 1205cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size, 1206cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt, ep->qp.rq_pgtbl_phys); 1207cf4e6363SMichael Chan ep->qp.rq_pgtbl_virt = NULL; 1208cf4e6363SMichael Chan ep->qp.rq_pgtbl_phys = 0; 1209cf4e6363SMichael Chan } 1210cf4e6363SMichael Chan if (ep->qp.rq_virt) { 1211cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size, 1212cf4e6363SMichael Chan ep->qp.rq_virt, ep->qp.rq_phys); 1213cf4e6363SMichael Chan ep->qp.rq_virt = NULL; 1214cf4e6363SMichael Chan ep->qp.rq_phys = 0; 1215cf4e6363SMichael Chan } 1216cf4e6363SMichael Chan 1217cf4e6363SMichael Chan /* Free CQ mem */ 1218cf4e6363SMichael Chan if (ep->qp.cq_pgtbl_virt) { 1219cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size, 1220cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt, ep->qp.cq_pgtbl_phys); 1221cf4e6363SMichael Chan ep->qp.cq_pgtbl_virt = NULL; 1222cf4e6363SMichael Chan ep->qp.cq_pgtbl_phys = 0; 1223cf4e6363SMichael Chan } 1224cf4e6363SMichael Chan if (ep->qp.cq_virt) { 1225cf4e6363SMichael Chan dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size, 1226cf4e6363SMichael Chan ep->qp.cq_virt, ep->qp.cq_phys); 1227cf4e6363SMichael Chan ep->qp.cq_virt = NULL; 1228cf4e6363SMichael Chan ep->qp.cq_phys = 0; 1229cf4e6363SMichael Chan } 1230cf4e6363SMichael Chan } 1231cf4e6363SMichael Chan 1232cf4e6363SMichael Chan 1233cf4e6363SMichael Chan /** 1234cf4e6363SMichael Chan * bnx2i_send_fw_iscsi_init_msg - initiates initial handshake with iscsi f/w 1235cf4e6363SMichael Chan * @hba: adapter structure pointer 1236cf4e6363SMichael Chan * 1237cf4e6363SMichael Chan * Send down iscsi_init KWQEs which initiates the initial handshake with the f/w 1238cf4e6363SMichael Chan * This results in iSCSi support validation and on-chip context manager 1239cf4e6363SMichael Chan * initialization. Firmware completes this handshake with a CQE carrying 1240cf4e6363SMichael Chan * the result of iscsi support validation. Parameter carried by 1241cf4e6363SMichael Chan * iscsi init request determines the number of offloaded connection and 1242cf4e6363SMichael Chan * tolerance level for iscsi protocol violation this hba/chip can support 1243cf4e6363SMichael Chan */ 1244cf4e6363SMichael Chan int bnx2i_send_fw_iscsi_init_msg(struct bnx2i_hba *hba) 1245cf4e6363SMichael Chan { 1246cf4e6363SMichael Chan struct kwqe *kwqe_arr[3]; 1247cf4e6363SMichael Chan struct iscsi_kwqe_init1 iscsi_init; 1248cf4e6363SMichael Chan struct iscsi_kwqe_init2 iscsi_init2; 1249cf4e6363SMichael Chan int rc = 0; 1250cf4e6363SMichael Chan u64 mask64; 1251cf4e6363SMichael Chan 1252d6532207SEddie Wai memset(&iscsi_init, 0x00, sizeof(struct iscsi_kwqe_init1)); 1253d6532207SEddie Wai memset(&iscsi_init2, 0x00, sizeof(struct iscsi_kwqe_init2)); 1254d6532207SEddie Wai 1255cf4e6363SMichael Chan bnx2i_adjust_qp_size(hba); 1256cf4e6363SMichael Chan 1257cf4e6363SMichael Chan iscsi_init.flags = 1258be1fefc2SMichael Chan (CNIC_PAGE_BITS - 8) << ISCSI_KWQE_INIT1_PAGE_SIZE_SHIFT; 1259cf4e6363SMichael Chan if (en_tcp_dack) 1260cf4e6363SMichael Chan iscsi_init.flags |= ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE; 1261cf4e6363SMichael Chan iscsi_init.reserved0 = 0; 1262cf4e6363SMichael Chan iscsi_init.num_cqs = 1; 1263cf4e6363SMichael Chan iscsi_init.hdr.op_code = ISCSI_KWQE_OPCODE_INIT1; 1264cf4e6363SMichael Chan iscsi_init.hdr.flags = 1265cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 1266cf4e6363SMichael Chan 1267cf4e6363SMichael Chan iscsi_init.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma; 1268cf4e6363SMichael Chan iscsi_init.dummy_buffer_addr_hi = 1269cf4e6363SMichael Chan (u32) ((u64) hba->dummy_buf_dma >> 32); 1270cf4e6363SMichael Chan 12717287c63eSEddie Wai hba->num_ccell = hba->max_sqes >> 1; 1272cf4e6363SMichael Chan hba->ctx_ccell_tasks = 1273cf4e6363SMichael Chan ((hba->num_ccell & 0xFFFF) | (hba->max_sqes << 16)); 1274cf4e6363SMichael Chan iscsi_init.num_ccells_per_conn = hba->num_ccell; 1275cf4e6363SMichael Chan iscsi_init.num_tasks_per_conn = hba->max_sqes; 1276be1fefc2SMichael Chan iscsi_init.sq_wqes_per_page = CNIC_PAGE_SIZE / BNX2I_SQ_WQE_SIZE; 1277cf4e6363SMichael Chan iscsi_init.sq_num_wqes = hba->max_sqes; 1278cf4e6363SMichael Chan iscsi_init.cq_log_wqes_per_page = 1279be1fefc2SMichael Chan (u8) bnx2i_power_of2(CNIC_PAGE_SIZE / BNX2I_CQE_SIZE); 1280cf4e6363SMichael Chan iscsi_init.cq_num_wqes = hba->max_cqes; 1281cf4e6363SMichael Chan iscsi_init.cq_num_pages = (hba->max_cqes * BNX2I_CQE_SIZE + 1282be1fefc2SMichael Chan (CNIC_PAGE_SIZE - 1)) / CNIC_PAGE_SIZE; 1283cf4e6363SMichael Chan iscsi_init.sq_num_pages = (hba->max_sqes * BNX2I_SQ_WQE_SIZE + 1284be1fefc2SMichael Chan (CNIC_PAGE_SIZE - 1)) / CNIC_PAGE_SIZE; 1285cf4e6363SMichael Chan iscsi_init.rq_buffer_size = BNX2I_RQ_WQE_SIZE; 1286cf4e6363SMichael Chan iscsi_init.rq_num_wqes = hba->max_rqes; 1287cf4e6363SMichael Chan 1288cf4e6363SMichael Chan 1289cf4e6363SMichael Chan iscsi_init2.hdr.op_code = ISCSI_KWQE_OPCODE_INIT2; 1290cf4e6363SMichael Chan iscsi_init2.hdr.flags = 1291cf4e6363SMichael Chan (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); 1292cf4e6363SMichael Chan iscsi_init2.max_cq_sqn = hba->max_cqes * 2 + 1; 1293cf4e6363SMichael Chan mask64 = 0x0ULL; 1294cf4e6363SMichael Chan mask64 |= ( 1295cf4e6363SMichael Chan /* CISCO MDS */ 1296cf4e6363SMichael Chan (1UL << 1297cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV) | 1298cf4e6363SMichael Chan /* HP MSA1510i */ 1299cf4e6363SMichael Chan (1UL << 1300cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN) | 1301cf4e6363SMichael Chan /* EMC */ 1302cf4e6363SMichael Chan (1ULL << ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN)); 130370fc872cSEddie Wai if (error_mask1) { 1304cf4e6363SMichael Chan iscsi_init2.error_bit_map[0] = error_mask1; 1305d4a0d607STomas Henzl mask64 ^= (u32)(mask64); 130670fc872cSEddie Wai mask64 |= error_mask1; 130770fc872cSEddie Wai } else 1308cf4e6363SMichael Chan iscsi_init2.error_bit_map[0] = (u32) mask64; 1309cf4e6363SMichael Chan 131070fc872cSEddie Wai if (error_mask2) { 1311cf4e6363SMichael Chan iscsi_init2.error_bit_map[1] = error_mask2; 131270fc872cSEddie Wai mask64 &= 0xffffffff; 131370fc872cSEddie Wai mask64 |= ((u64)error_mask2 << 32); 131470fc872cSEddie Wai } else 1315cf4e6363SMichael Chan iscsi_init2.error_bit_map[1] = (u32) (mask64 >> 32); 1316cf4e6363SMichael Chan 1317cf4e6363SMichael Chan iscsi_error_mask = mask64; 1318cf4e6363SMichael Chan 1319cf4e6363SMichael Chan kwqe_arr[0] = (struct kwqe *) &iscsi_init; 1320cf4e6363SMichael Chan kwqe_arr[1] = (struct kwqe *) &iscsi_init2; 1321cf4e6363SMichael Chan 1322cf4e6363SMichael Chan if (hba->cnic && hba->cnic->submit_kwqes) 1323cf4e6363SMichael Chan rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 2); 1324cf4e6363SMichael Chan return rc; 1325cf4e6363SMichael Chan } 1326cf4e6363SMichael Chan 1327cf4e6363SMichael Chan 1328cf4e6363SMichael Chan /** 1329cf4e6363SMichael Chan * bnx2i_process_scsi_cmd_resp - this function handles scsi cmd completion. 1330b5cf6b63SEddie Wai * @session: iscsi session 1331b5cf6b63SEddie Wai * @bnx2i_conn: bnx2i connection 1332cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1333cf4e6363SMichael Chan * 1334cf4e6363SMichael Chan * process SCSI CMD Response CQE & complete the request to SCSI-ML 1335cf4e6363SMichael Chan */ 1336b5cf6b63SEddie Wai int bnx2i_process_scsi_cmd_resp(struct iscsi_session *session, 1337cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1338cf4e6363SMichael Chan struct cqe *cqe) 1339cf4e6363SMichael Chan { 1340cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 13412e499d3cSBarak Witkowski struct bnx2i_hba *hba = bnx2i_conn->hba; 1342cf4e6363SMichael Chan struct bnx2i_cmd_response *resp_cqe; 1343cf4e6363SMichael Chan struct bnx2i_cmd *bnx2i_cmd; 1344cf4e6363SMichael Chan struct iscsi_task *task; 134512352183SNicholas Bellinger struct iscsi_scsi_rsp *hdr; 1346cf4e6363SMichael Chan u32 datalen = 0; 1347cf4e6363SMichael Chan 1348cf4e6363SMichael Chan resp_cqe = (struct bnx2i_cmd_response *)cqe; 1349659743b0SShlomo Pongratz spin_lock_bh(&session->back_lock); 1350cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1351cf4e6363SMichael Chan resp_cqe->itt & ISCSI_CMD_RESPONSE_INDEX); 1352cf4e6363SMichael Chan if (!task) 1353cf4e6363SMichael Chan goto fail; 1354cf4e6363SMichael Chan 1355cf4e6363SMichael Chan bnx2i_cmd = task->dd_data; 1356cf4e6363SMichael Chan 1357cf4e6363SMichael Chan if (bnx2i_cmd->req.op_attr & ISCSI_CMD_REQUEST_READ) { 1358cf4e6363SMichael Chan conn->datain_pdus_cnt += 13592e499d3cSBarak Witkowski resp_cqe->task_stat.read_stat.num_data_ins; 1360cf4e6363SMichael Chan conn->rxdata_octets += 1361cf4e6363SMichael Chan bnx2i_cmd->req.total_data_transfer_length; 13622e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_pdus, 13632e499d3cSBarak Witkowski resp_cqe->task_stat.read_stat.num_data_ins); 13642e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_bytes, 13652e499d3cSBarak Witkowski bnx2i_cmd->req.total_data_transfer_length); 1366cf4e6363SMichael Chan } else { 1367cf4e6363SMichael Chan conn->dataout_pdus_cnt += 13682e499d3cSBarak Witkowski resp_cqe->task_stat.write_stat.num_data_outs; 1369cf4e6363SMichael Chan conn->r2t_pdus_cnt += 13702e499d3cSBarak Witkowski resp_cqe->task_stat.write_stat.num_r2ts; 1371cf4e6363SMichael Chan conn->txdata_octets += 1372cf4e6363SMichael Chan bnx2i_cmd->req.total_data_transfer_length; 13732e499d3cSBarak Witkowski ADD_STATS_64(hba, tx_pdus, 13742e499d3cSBarak Witkowski resp_cqe->task_stat.write_stat.num_data_outs); 13752e499d3cSBarak Witkowski ADD_STATS_64(hba, tx_bytes, 13762e499d3cSBarak Witkowski bnx2i_cmd->req.total_data_transfer_length); 13772e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_pdus, 13782e499d3cSBarak Witkowski resp_cqe->task_stat.write_stat.num_r2ts); 1379cf4e6363SMichael Chan } 1380cf4e6363SMichael Chan bnx2i_iscsi_unmap_sg_list(bnx2i_cmd); 1381cf4e6363SMichael Chan 138212352183SNicholas Bellinger hdr = (struct iscsi_scsi_rsp *)task->hdr; 1383cf4e6363SMichael Chan resp_cqe = (struct bnx2i_cmd_response *)cqe; 1384cf4e6363SMichael Chan hdr->opcode = resp_cqe->op_code; 1385cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(resp_cqe->max_cmd_sn); 1386cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(resp_cqe->exp_cmd_sn); 1387cf4e6363SMichael Chan hdr->response = resp_cqe->response; 1388cf4e6363SMichael Chan hdr->cmd_status = resp_cqe->status; 1389cf4e6363SMichael Chan hdr->flags = resp_cqe->response_flags; 1390cf4e6363SMichael Chan hdr->residual_count = cpu_to_be32(resp_cqe->residual_count); 1391cf4e6363SMichael Chan 1392cf4e6363SMichael Chan if (resp_cqe->op_code == ISCSI_OP_SCSI_DATA_IN) 1393cf4e6363SMichael Chan goto done; 1394cf4e6363SMichael Chan 1395cf4e6363SMichael Chan if (resp_cqe->status == SAM_STAT_CHECK_CONDITION) { 1396cf4e6363SMichael Chan datalen = resp_cqe->data_length; 1397cf4e6363SMichael Chan if (datalen < 2) 1398cf4e6363SMichael Chan goto done; 1399cf4e6363SMichael Chan 1400cf4e6363SMichael Chan if (datalen > BNX2I_RQ_WQE_SIZE) { 1401cf4e6363SMichael Chan iscsi_conn_printk(KERN_ERR, conn, 1402cf4e6363SMichael Chan "sense data len %d > RQ sz\n", 1403cf4e6363SMichael Chan datalen); 1404cf4e6363SMichael Chan datalen = BNX2I_RQ_WQE_SIZE; 1405cf4e6363SMichael Chan } else if (datalen > ISCSI_DEF_MAX_RECV_SEG_LEN) { 1406cf4e6363SMichael Chan iscsi_conn_printk(KERN_ERR, conn, 1407cf4e6363SMichael Chan "sense data len %d > conn data\n", 1408cf4e6363SMichael Chan datalen); 1409cf4e6363SMichael Chan datalen = ISCSI_DEF_MAX_RECV_SEG_LEN; 1410cf4e6363SMichael Chan } 1411cf4e6363SMichael Chan 1412cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_cmd->conn, conn->data, datalen); 1413cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_cmd->conn, 1); 1414cf4e6363SMichael Chan } 1415cf4e6363SMichael Chan 1416cf4e6363SMichael Chan done: 1417cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, 1418cf4e6363SMichael Chan conn->data, datalen); 1419cf4e6363SMichael Chan fail: 1420659743b0SShlomo Pongratz spin_unlock_bh(&session->back_lock); 1421cf4e6363SMichael Chan return 0; 1422cf4e6363SMichael Chan } 1423cf4e6363SMichael Chan 1424cf4e6363SMichael Chan 1425cf4e6363SMichael Chan /** 1426cf4e6363SMichael Chan * bnx2i_process_login_resp - this function handles iscsi login response 1427cf4e6363SMichael Chan * @session: iscsi session pointer 1428cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1429cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1430cf4e6363SMichael Chan * 1431cf4e6363SMichael Chan * process Login Response CQE & complete it to open-iscsi user daemon 1432cf4e6363SMichael Chan */ 1433cf4e6363SMichael Chan static int bnx2i_process_login_resp(struct iscsi_session *session, 1434cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1435cf4e6363SMichael Chan struct cqe *cqe) 1436cf4e6363SMichael Chan { 1437cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1438cf4e6363SMichael Chan struct iscsi_task *task; 1439cf4e6363SMichael Chan struct bnx2i_login_response *login; 1440cf4e6363SMichael Chan struct iscsi_login_rsp *resp_hdr; 1441cf4e6363SMichael Chan int pld_len; 1442cf4e6363SMichael Chan int pad_len; 1443cf4e6363SMichael Chan 1444cf4e6363SMichael Chan login = (struct bnx2i_login_response *) cqe; 1445659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1446cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1447cf4e6363SMichael Chan login->itt & ISCSI_LOGIN_RESPONSE_INDEX); 1448cf4e6363SMichael Chan if (!task) 1449cf4e6363SMichael Chan goto done; 1450cf4e6363SMichael Chan 1451cf4e6363SMichael Chan resp_hdr = (struct iscsi_login_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1452cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1453cf4e6363SMichael Chan resp_hdr->opcode = login->op_code; 1454cf4e6363SMichael Chan resp_hdr->flags = login->response_flags; 1455cf4e6363SMichael Chan resp_hdr->max_version = login->version_max; 1456a419aef8SJoe Perches resp_hdr->active_version = login->version_active; 1457cf4e6363SMichael Chan resp_hdr->hlength = 0; 1458cf4e6363SMichael Chan 1459cf4e6363SMichael Chan hton24(resp_hdr->dlength, login->data_length); 1460cf4e6363SMichael Chan memcpy(resp_hdr->isid, &login->isid_lo, 6); 1461cf4e6363SMichael Chan resp_hdr->tsih = cpu_to_be16(login->tsih); 1462cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1463cf4e6363SMichael Chan resp_hdr->statsn = cpu_to_be32(login->stat_sn); 1464cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(login->exp_cmd_sn); 1465cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(login->max_cmd_sn); 1466cf4e6363SMichael Chan resp_hdr->status_class = login->status_class; 1467cf4e6363SMichael Chan resp_hdr->status_detail = login->status_detail; 1468cf4e6363SMichael Chan pld_len = login->data_length; 1469cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr = 1470cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_buf + pld_len; 1471cf4e6363SMichael Chan 1472cf4e6363SMichael Chan pad_len = 0; 1473cf4e6363SMichael Chan if (pld_len & 0x3) 1474cf4e6363SMichael Chan pad_len = 4 - (pld_len % 4); 1475cf4e6363SMichael Chan 1476cf4e6363SMichael Chan if (pad_len) { 1477cf4e6363SMichael Chan int i = 0; 1478cf4e6363SMichael Chan for (i = 0; i < pad_len; i++) { 1479cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0; 1480cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr++; 1481cf4e6363SMichael Chan } 1482cf4e6363SMichael Chan } 1483cf4e6363SMichael Chan 1484cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, 1485cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_buf, 1486cf4e6363SMichael Chan bnx2i_conn->gen_pdu.resp_wr_ptr - bnx2i_conn->gen_pdu.resp_buf); 1487cf4e6363SMichael Chan done: 1488659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1489cf4e6363SMichael Chan return 0; 1490cf4e6363SMichael Chan } 1491cf4e6363SMichael Chan 149209813ba5SEddie Wai 149309813ba5SEddie Wai /** 149409813ba5SEddie Wai * bnx2i_process_text_resp - this function handles iscsi text response 149509813ba5SEddie Wai * @session: iscsi session pointer 149609813ba5SEddie Wai * @bnx2i_conn: iscsi connection pointer 149709813ba5SEddie Wai * @cqe: pointer to newly DMA'ed CQE entry for processing 149809813ba5SEddie Wai * 149909813ba5SEddie Wai * process iSCSI Text Response CQE& complete it to open-iscsi user daemon 150009813ba5SEddie Wai */ 150109813ba5SEddie Wai static int bnx2i_process_text_resp(struct iscsi_session *session, 150209813ba5SEddie Wai struct bnx2i_conn *bnx2i_conn, 150309813ba5SEddie Wai struct cqe *cqe) 150409813ba5SEddie Wai { 150509813ba5SEddie Wai struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 150609813ba5SEddie Wai struct iscsi_task *task; 150709813ba5SEddie Wai struct bnx2i_text_response *text; 150809813ba5SEddie Wai struct iscsi_text_rsp *resp_hdr; 150909813ba5SEddie Wai int pld_len; 151009813ba5SEddie Wai int pad_len; 151109813ba5SEddie Wai 151209813ba5SEddie Wai text = (struct bnx2i_text_response *) cqe; 1513659743b0SShlomo Pongratz spin_lock(&session->back_lock); 151409813ba5SEddie Wai task = iscsi_itt_to_task(conn, text->itt & ISCSI_LOGIN_RESPONSE_INDEX); 151509813ba5SEddie Wai if (!task) 151609813ba5SEddie Wai goto done; 151709813ba5SEddie Wai 151809813ba5SEddie Wai resp_hdr = (struct iscsi_text_rsp *)&bnx2i_conn->gen_pdu.resp_hdr; 151909813ba5SEddie Wai memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 152009813ba5SEddie Wai resp_hdr->opcode = text->op_code; 152109813ba5SEddie Wai resp_hdr->flags = text->response_flags; 152209813ba5SEddie Wai resp_hdr->hlength = 0; 152309813ba5SEddie Wai 152409813ba5SEddie Wai hton24(resp_hdr->dlength, text->data_length); 152509813ba5SEddie Wai resp_hdr->itt = task->hdr->itt; 152609813ba5SEddie Wai resp_hdr->ttt = cpu_to_be32(text->ttt); 152709813ba5SEddie Wai resp_hdr->statsn = task->hdr->exp_statsn; 152809813ba5SEddie Wai resp_hdr->exp_cmdsn = cpu_to_be32(text->exp_cmd_sn); 152909813ba5SEddie Wai resp_hdr->max_cmdsn = cpu_to_be32(text->max_cmd_sn); 153009813ba5SEddie Wai pld_len = text->data_length; 153109813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_wr_ptr = bnx2i_conn->gen_pdu.resp_buf + 153209813ba5SEddie Wai pld_len; 153309813ba5SEddie Wai pad_len = 0; 153409813ba5SEddie Wai if (pld_len & 0x3) 153509813ba5SEddie Wai pad_len = 4 - (pld_len % 4); 153609813ba5SEddie Wai 153709813ba5SEddie Wai if (pad_len) { 153809813ba5SEddie Wai int i = 0; 153909813ba5SEddie Wai for (i = 0; i < pad_len; i++) { 154009813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0; 154109813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_wr_ptr++; 154209813ba5SEddie Wai } 154309813ba5SEddie Wai } 154409813ba5SEddie Wai __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, 154509813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_buf, 154609813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_wr_ptr - 154709813ba5SEddie Wai bnx2i_conn->gen_pdu.resp_buf); 154809813ba5SEddie Wai done: 1549659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 155009813ba5SEddie Wai return 0; 155109813ba5SEddie Wai } 155209813ba5SEddie Wai 155309813ba5SEddie Wai 1554cf4e6363SMichael Chan /** 1555cf4e6363SMichael Chan * bnx2i_process_tmf_resp - this function handles iscsi TMF response 1556cf4e6363SMichael Chan * @session: iscsi session pointer 1557cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1558cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1559cf4e6363SMichael Chan * 1560cf4e6363SMichael Chan * process iSCSI TMF Response CQE and wake up the driver eh thread. 1561cf4e6363SMichael Chan */ 1562cf4e6363SMichael Chan static int bnx2i_process_tmf_resp(struct iscsi_session *session, 1563cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1564cf4e6363SMichael Chan struct cqe *cqe) 1565cf4e6363SMichael Chan { 1566cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1567cf4e6363SMichael Chan struct iscsi_task *task; 1568cf4e6363SMichael Chan struct bnx2i_tmf_response *tmf_cqe; 1569cf4e6363SMichael Chan struct iscsi_tm_rsp *resp_hdr; 1570cf4e6363SMichael Chan 1571cf4e6363SMichael Chan tmf_cqe = (struct bnx2i_tmf_response *)cqe; 1572659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1573cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1574cf4e6363SMichael Chan tmf_cqe->itt & ISCSI_TMF_RESPONSE_INDEX); 1575cf4e6363SMichael Chan if (!task) 1576cf4e6363SMichael Chan goto done; 1577cf4e6363SMichael Chan 1578cf4e6363SMichael Chan resp_hdr = (struct iscsi_tm_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1579cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1580cf4e6363SMichael Chan resp_hdr->opcode = tmf_cqe->op_code; 1581cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(tmf_cqe->max_cmd_sn); 1582cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(tmf_cqe->exp_cmd_sn); 1583cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1584cf4e6363SMichael Chan resp_hdr->response = tmf_cqe->response; 1585cf4e6363SMichael Chan 1586cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0); 1587cf4e6363SMichael Chan done: 1588659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1589cf4e6363SMichael Chan return 0; 1590cf4e6363SMichael Chan } 1591cf4e6363SMichael Chan 1592cf4e6363SMichael Chan /** 1593cf4e6363SMichael Chan * bnx2i_process_logout_resp - this function handles iscsi logout response 1594cf4e6363SMichael Chan * @session: iscsi session pointer 1595cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1596cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1597cf4e6363SMichael Chan * 1598cf4e6363SMichael Chan * process iSCSI Logout Response CQE & make function call to 1599cf4e6363SMichael Chan * notify the user daemon. 1600cf4e6363SMichael Chan */ 1601cf4e6363SMichael Chan static int bnx2i_process_logout_resp(struct iscsi_session *session, 1602cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1603cf4e6363SMichael Chan struct cqe *cqe) 1604cf4e6363SMichael Chan { 1605cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1606cf4e6363SMichael Chan struct iscsi_task *task; 1607cf4e6363SMichael Chan struct bnx2i_logout_response *logout; 1608cf4e6363SMichael Chan struct iscsi_logout_rsp *resp_hdr; 1609cf4e6363SMichael Chan 1610cf4e6363SMichael Chan logout = (struct bnx2i_logout_response *) cqe; 1611659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1612cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1613cf4e6363SMichael Chan logout->itt & ISCSI_LOGOUT_RESPONSE_INDEX); 1614cf4e6363SMichael Chan if (!task) 1615cf4e6363SMichael Chan goto done; 1616cf4e6363SMichael Chan 1617cf4e6363SMichael Chan resp_hdr = (struct iscsi_logout_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; 1618cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1619cf4e6363SMichael Chan resp_hdr->opcode = logout->op_code; 1620cf4e6363SMichael Chan resp_hdr->flags = logout->response; 1621cf4e6363SMichael Chan resp_hdr->hlength = 0; 1622cf4e6363SMichael Chan 1623cf4e6363SMichael Chan resp_hdr->itt = task->hdr->itt; 1624cf4e6363SMichael Chan resp_hdr->statsn = task->hdr->exp_statsn; 1625cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(logout->exp_cmd_sn); 1626cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(logout->max_cmd_sn); 1627cf4e6363SMichael Chan 1628cf4e6363SMichael Chan resp_hdr->t2wait = cpu_to_be32(logout->time_to_wait); 1629cf4e6363SMichael Chan resp_hdr->t2retain = cpu_to_be32(logout->time_to_retain); 1630cf4e6363SMichael Chan 1631cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0); 16322eefb20dSEddie Wai 16332eefb20dSEddie Wai bnx2i_conn->ep->state = EP_STATE_LOGOUT_RESP_RCVD; 1634cf4e6363SMichael Chan done: 1635659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1636cf4e6363SMichael Chan return 0; 1637cf4e6363SMichael Chan } 1638cf4e6363SMichael Chan 1639cf4e6363SMichael Chan /** 1640cf4e6363SMichael Chan * bnx2i_process_nopin_local_cmpl - this function handles iscsi nopin CQE 1641cf4e6363SMichael Chan * @session: iscsi session pointer 1642cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1643cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1644cf4e6363SMichael Chan * 1645cf4e6363SMichael Chan * process iSCSI NOPIN local completion CQE, frees IIT and command structures 1646cf4e6363SMichael Chan */ 1647cf4e6363SMichael Chan static void bnx2i_process_nopin_local_cmpl(struct iscsi_session *session, 1648cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1649cf4e6363SMichael Chan struct cqe *cqe) 1650cf4e6363SMichael Chan { 1651cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1652cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nop_in; 1653cf4e6363SMichael Chan struct iscsi_task *task; 1654cf4e6363SMichael Chan 1655cf4e6363SMichael Chan nop_in = (struct bnx2i_nop_in_msg *)cqe; 1656659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1657cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1658cf4e6363SMichael Chan nop_in->itt & ISCSI_NOP_IN_MSG_INDEX); 1659cf4e6363SMichael Chan if (task) 16608eea2f55SEddie Wai __iscsi_put_task(task); 1661659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1662cf4e6363SMichael Chan } 1663cf4e6363SMichael Chan 1664cf4e6363SMichael Chan /** 1665cf4e6363SMichael Chan * bnx2i_unsol_pdu_adjust_rq - makes adjustments to RQ after unsol pdu is recvd 1666dd3273c9SLee Jones * @bnx2i_conn: iscsi connection 1667cf4e6363SMichael Chan * 1668cf4e6363SMichael Chan * Firmware advances RQ producer index for every unsolicited PDU even if 1669cf4e6363SMichael Chan * payload data length is '0'. This function makes corresponding 1670cf4e6363SMichael Chan * adjustments on the driver side to match this f/w behavior 1671cf4e6363SMichael Chan */ 1672cf4e6363SMichael Chan static void bnx2i_unsol_pdu_adjust_rq(struct bnx2i_conn *bnx2i_conn) 1673cf4e6363SMichael Chan { 1674cf4e6363SMichael Chan char dummy_rq_data[2]; 1675cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_conn, dummy_rq_data, 1); 1676cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_conn, 1); 1677cf4e6363SMichael Chan } 1678cf4e6363SMichael Chan 1679cf4e6363SMichael Chan 1680cf4e6363SMichael Chan /** 1681cf4e6363SMichael Chan * bnx2i_process_nopin_mesg - this function handles iscsi nopin CQE 1682cf4e6363SMichael Chan * @session: iscsi session pointer 1683cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1684cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1685cf4e6363SMichael Chan * 1686cf4e6363SMichael Chan * process iSCSI target's proactive iSCSI NOPIN request 1687cf4e6363SMichael Chan */ 1688cf4e6363SMichael Chan static int bnx2i_process_nopin_mesg(struct iscsi_session *session, 1689cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1690cf4e6363SMichael Chan struct cqe *cqe) 1691cf4e6363SMichael Chan { 1692cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1693cf4e6363SMichael Chan struct iscsi_task *task; 1694cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nop_in; 1695cf4e6363SMichael Chan struct iscsi_nopin *hdr; 1696cf4e6363SMichael Chan int tgt_async_nop = 0; 1697cf4e6363SMichael Chan 1698cf4e6363SMichael Chan nop_in = (struct bnx2i_nop_in_msg *)cqe; 1699cf4e6363SMichael Chan 1700659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1701cf4e6363SMichael Chan hdr = (struct iscsi_nopin *)&bnx2i_conn->gen_pdu.resp_hdr; 1702cf4e6363SMichael Chan memset(hdr, 0, sizeof(struct iscsi_hdr)); 1703cf4e6363SMichael Chan hdr->opcode = nop_in->op_code; 1704cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(nop_in->max_cmd_sn); 1705cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(nop_in->exp_cmd_sn); 1706cf4e6363SMichael Chan hdr->ttt = cpu_to_be32(nop_in->ttt); 1707cf4e6363SMichael Chan 17085ee32576SEddie Wai if (nop_in->itt == (u16) RESERVED_ITT) { 1709cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1710cf4e6363SMichael Chan hdr->itt = RESERVED_ITT; 1711cf4e6363SMichael Chan tgt_async_nop = 1; 1712cf4e6363SMichael Chan goto done; 1713cf4e6363SMichael Chan } 1714cf4e6363SMichael Chan 1715cf4e6363SMichael Chan /* this is a response to one of our nop-outs */ 17165ee32576SEddie Wai task = iscsi_itt_to_task(conn, 17175ee32576SEddie Wai (itt_t) (nop_in->itt & ISCSI_NOP_IN_MSG_INDEX)); 1718cf4e6363SMichael Chan if (task) { 1719cf4e6363SMichael Chan hdr->flags = ISCSI_FLAG_CMD_FINAL; 1720cf4e6363SMichael Chan hdr->itt = task->hdr->itt; 1721cf4e6363SMichael Chan hdr->ttt = cpu_to_be32(nop_in->ttt); 1722516f43a2SAndy Grover memcpy(&hdr->lun, nop_in->lun, 8); 1723cf4e6363SMichael Chan } 1724cf4e6363SMichael Chan done: 1725cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 1726659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1727cf4e6363SMichael Chan 1728cf4e6363SMichael Chan return tgt_async_nop; 1729cf4e6363SMichael Chan } 1730cf4e6363SMichael Chan 1731cf4e6363SMichael Chan 1732cf4e6363SMichael Chan /** 1733cf4e6363SMichael Chan * bnx2i_process_async_mesg - this function handles iscsi async message 1734cf4e6363SMichael Chan * @session: iscsi session pointer 1735cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1736cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1737cf4e6363SMichael Chan * 1738cf4e6363SMichael Chan * process iSCSI ASYNC Message 1739cf4e6363SMichael Chan */ 1740cf4e6363SMichael Chan static void bnx2i_process_async_mesg(struct iscsi_session *session, 1741cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1742cf4e6363SMichael Chan struct cqe *cqe) 1743cf4e6363SMichael Chan { 1744cf4e6363SMichael Chan struct bnx2i_async_msg *async_cqe; 1745cf4e6363SMichael Chan struct iscsi_async *resp_hdr; 1746cf4e6363SMichael Chan u8 async_event; 1747cf4e6363SMichael Chan 1748cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1749cf4e6363SMichael Chan 1750cf4e6363SMichael Chan async_cqe = (struct bnx2i_async_msg *)cqe; 1751cf4e6363SMichael Chan async_event = async_cqe->async_event; 1752cf4e6363SMichael Chan 1753cf4e6363SMichael Chan if (async_event == ISCSI_ASYNC_MSG_SCSI_EVENT) { 1754cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data, 1755cf4e6363SMichael Chan "async: scsi events not supported\n"); 1756cf4e6363SMichael Chan return; 1757cf4e6363SMichael Chan } 1758cf4e6363SMichael Chan 1759659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1760cf4e6363SMichael Chan resp_hdr = (struct iscsi_async *) &bnx2i_conn->gen_pdu.resp_hdr; 1761cf4e6363SMichael Chan memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); 1762cf4e6363SMichael Chan resp_hdr->opcode = async_cqe->op_code; 1763cf4e6363SMichael Chan resp_hdr->flags = 0x80; 1764cf4e6363SMichael Chan 1765516f43a2SAndy Grover memcpy(&resp_hdr->lun, async_cqe->lun, 8); 1766cf4e6363SMichael Chan resp_hdr->exp_cmdsn = cpu_to_be32(async_cqe->exp_cmd_sn); 1767cf4e6363SMichael Chan resp_hdr->max_cmdsn = cpu_to_be32(async_cqe->max_cmd_sn); 1768cf4e6363SMichael Chan 1769cf4e6363SMichael Chan resp_hdr->async_event = async_cqe->async_event; 1770cf4e6363SMichael Chan resp_hdr->async_vcode = async_cqe->async_vcode; 1771cf4e6363SMichael Chan 1772cf4e6363SMichael Chan resp_hdr->param1 = cpu_to_be16(async_cqe->param1); 1773cf4e6363SMichael Chan resp_hdr->param2 = cpu_to_be16(async_cqe->param2); 1774cf4e6363SMichael Chan resp_hdr->param3 = cpu_to_be16(async_cqe->param3); 1775cf4e6363SMichael Chan 1776cf4e6363SMichael Chan __iscsi_complete_pdu(bnx2i_conn->cls_conn->dd_data, 1777cf4e6363SMichael Chan (struct iscsi_hdr *)resp_hdr, NULL, 0); 1778659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1779cf4e6363SMichael Chan } 1780cf4e6363SMichael Chan 1781cf4e6363SMichael Chan 1782cf4e6363SMichael Chan /** 1783cf4e6363SMichael Chan * bnx2i_process_reject_mesg - process iscsi reject pdu 1784cf4e6363SMichael Chan * @session: iscsi session pointer 1785cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1786cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1787cf4e6363SMichael Chan * 1788cf4e6363SMichael Chan * process iSCSI REJECT message 1789cf4e6363SMichael Chan */ 1790cf4e6363SMichael Chan static void bnx2i_process_reject_mesg(struct iscsi_session *session, 1791cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1792cf4e6363SMichael Chan struct cqe *cqe) 1793cf4e6363SMichael Chan { 1794cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1795cf4e6363SMichael Chan struct bnx2i_reject_msg *reject; 1796cf4e6363SMichael Chan struct iscsi_reject *hdr; 1797cf4e6363SMichael Chan 1798cf4e6363SMichael Chan reject = (struct bnx2i_reject_msg *) cqe; 1799cf4e6363SMichael Chan if (reject->data_length) { 1800cf4e6363SMichael Chan bnx2i_get_rq_buf(bnx2i_conn, conn->data, reject->data_length); 1801cf4e6363SMichael Chan bnx2i_put_rq_buf(bnx2i_conn, 1); 1802cf4e6363SMichael Chan } else 1803cf4e6363SMichael Chan bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 1804cf4e6363SMichael Chan 1805659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1806cf4e6363SMichael Chan hdr = (struct iscsi_reject *) &bnx2i_conn->gen_pdu.resp_hdr; 1807cf4e6363SMichael Chan memset(hdr, 0, sizeof(struct iscsi_hdr)); 1808cf4e6363SMichael Chan hdr->opcode = reject->op_code; 1809cf4e6363SMichael Chan hdr->reason = reject->reason; 1810cf4e6363SMichael Chan hton24(hdr->dlength, reject->data_length); 1811cf4e6363SMichael Chan hdr->max_cmdsn = cpu_to_be32(reject->max_cmd_sn); 1812cf4e6363SMichael Chan hdr->exp_cmdsn = cpu_to_be32(reject->exp_cmd_sn); 1813cf4e6363SMichael Chan hdr->ffffffff = cpu_to_be32(RESERVED_ITT); 1814cf4e6363SMichael Chan __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, conn->data, 1815cf4e6363SMichael Chan reject->data_length); 1816659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1817cf4e6363SMichael Chan } 1818cf4e6363SMichael Chan 1819cf4e6363SMichael Chan /** 1820cf4e6363SMichael Chan * bnx2i_process_cmd_cleanup_resp - process scsi command clean-up completion 1821cf4e6363SMichael Chan * @session: iscsi session pointer 1822cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection pointer 1823cf4e6363SMichael Chan * @cqe: pointer to newly DMA'ed CQE entry for processing 1824cf4e6363SMichael Chan * 1825cf4e6363SMichael Chan * process command cleanup response CQE during conn shutdown or error recovery 1826cf4e6363SMichael Chan */ 1827cf4e6363SMichael Chan static void bnx2i_process_cmd_cleanup_resp(struct iscsi_session *session, 1828cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn, 1829cf4e6363SMichael Chan struct cqe *cqe) 1830cf4e6363SMichael Chan { 1831cf4e6363SMichael Chan struct bnx2i_cleanup_response *cmd_clean_rsp; 1832cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1833cf4e6363SMichael Chan struct iscsi_task *task; 1834cf4e6363SMichael Chan 1835cf4e6363SMichael Chan cmd_clean_rsp = (struct bnx2i_cleanup_response *)cqe; 1836659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1837cf4e6363SMichael Chan task = iscsi_itt_to_task(conn, 1838cf4e6363SMichael Chan cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX); 1839cf4e6363SMichael Chan if (!task) 1840cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: cmd clean ITT %x not active\n", 1841cf4e6363SMichael Chan cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX); 1842659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1843cf4e6363SMichael Chan complete(&bnx2i_conn->cmd_cleanup_cmpl); 1844cf4e6363SMichael Chan } 1845cf4e6363SMichael Chan 1846cf4e6363SMichael Chan 1847b5cf6b63SEddie Wai /** 1848b5cf6b63SEddie Wai * bnx2i_percpu_io_thread - thread per cpu for ios 1849b5cf6b63SEddie Wai * 1850b5cf6b63SEddie Wai * @arg: ptr to bnx2i_percpu_info structure 1851b5cf6b63SEddie Wai */ 1852b5cf6b63SEddie Wai int bnx2i_percpu_io_thread(void *arg) 1853b5cf6b63SEddie Wai { 1854b5cf6b63SEddie Wai struct bnx2i_percpu_s *p = arg; 1855b5cf6b63SEddie Wai struct bnx2i_work *work, *tmp; 1856b5cf6b63SEddie Wai LIST_HEAD(work_list); 1857b5cf6b63SEddie Wai 18588698a745SDongsheng Yang set_user_nice(current, MIN_NICE); 1859b5cf6b63SEddie Wai 1860b5cf6b63SEddie Wai while (!kthread_should_stop()) { 1861b5cf6b63SEddie Wai spin_lock_bh(&p->p_work_lock); 1862b5cf6b63SEddie Wai while (!list_empty(&p->work_list)) { 1863b5cf6b63SEddie Wai list_splice_init(&p->work_list, &work_list); 1864b5cf6b63SEddie Wai spin_unlock_bh(&p->p_work_lock); 1865b5cf6b63SEddie Wai 1866b5cf6b63SEddie Wai list_for_each_entry_safe(work, tmp, &work_list, list) { 1867b5cf6b63SEddie Wai list_del_init(&work->list); 1868b5cf6b63SEddie Wai /* work allocated in the bh, freed here */ 1869b5cf6b63SEddie Wai bnx2i_process_scsi_cmd_resp(work->session, 1870b5cf6b63SEddie Wai work->bnx2i_conn, 1871b5cf6b63SEddie Wai &work->cqe); 1872b5cf6b63SEddie Wai atomic_dec(&work->bnx2i_conn->work_cnt); 1873b5cf6b63SEddie Wai kfree(work); 1874b5cf6b63SEddie Wai } 1875b5cf6b63SEddie Wai spin_lock_bh(&p->p_work_lock); 1876b5cf6b63SEddie Wai } 1877b5cf6b63SEddie Wai set_current_state(TASK_INTERRUPTIBLE); 1878b5cf6b63SEddie Wai spin_unlock_bh(&p->p_work_lock); 1879b5cf6b63SEddie Wai schedule(); 1880b5cf6b63SEddie Wai } 1881b5cf6b63SEddie Wai __set_current_state(TASK_RUNNING); 1882b5cf6b63SEddie Wai 1883b5cf6b63SEddie Wai return 0; 1884b5cf6b63SEddie Wai } 1885b5cf6b63SEddie Wai 1886b5cf6b63SEddie Wai 1887b5cf6b63SEddie Wai /** 1888b5cf6b63SEddie Wai * bnx2i_queue_scsi_cmd_resp - queue cmd completion to the percpu thread 1889dd3273c9SLee Jones * @session: iscsi session 1890b5cf6b63SEddie Wai * @bnx2i_conn: bnx2i connection 1891dd3273c9SLee Jones * @cqe: pointer to newly DMA'ed CQE entry for processing 1892b5cf6b63SEddie Wai * 1893b5cf6b63SEddie Wai * this function is called by generic KCQ handler to queue all pending cmd 1894b5cf6b63SEddie Wai * completion CQEs 1895b5cf6b63SEddie Wai * 1896b5cf6b63SEddie Wai * The implementation is to queue the cmd response based on the 1897b5cf6b63SEddie Wai * last recorded command for the given connection. The 1898b5cf6b63SEddie Wai * cpu_id gets recorded upon task_xmit. No out-of-order completion! 1899b5cf6b63SEddie Wai */ 1900b5cf6b63SEddie Wai static int bnx2i_queue_scsi_cmd_resp(struct iscsi_session *session, 1901b5cf6b63SEddie Wai struct bnx2i_conn *bnx2i_conn, 1902b5cf6b63SEddie Wai struct bnx2i_nop_in_msg *cqe) 1903b5cf6b63SEddie Wai { 1904b5cf6b63SEddie Wai struct bnx2i_work *bnx2i_work = NULL; 1905b5cf6b63SEddie Wai struct bnx2i_percpu_s *p = NULL; 1906b5cf6b63SEddie Wai struct iscsi_task *task; 1907b5cf6b63SEddie Wai struct scsi_cmnd *sc; 1908b5cf6b63SEddie Wai int rc = 0; 1909b5cf6b63SEddie Wai 1910659743b0SShlomo Pongratz spin_lock(&session->back_lock); 1911b5cf6b63SEddie Wai task = iscsi_itt_to_task(bnx2i_conn->cls_conn->dd_data, 1912b5cf6b63SEddie Wai cqe->itt & ISCSI_CMD_RESPONSE_INDEX); 1913a878185cSEddie Wai if (!task || !task->sc) { 1914659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1915b5cf6b63SEddie Wai return -EINVAL; 1916b5cf6b63SEddie Wai } 1917b5cf6b63SEddie Wai sc = task->sc; 1918b5cf6b63SEddie Wai 1919659743b0SShlomo Pongratz spin_unlock(&session->back_lock); 1920a878185cSEddie Wai 19219cf2bab6SJens Axboe p = &per_cpu(bnx2i_percpu, blk_mq_rq_cpu(sc->request)); 1922b5cf6b63SEddie Wai spin_lock(&p->p_work_lock); 1923b5cf6b63SEddie Wai if (unlikely(!p->iothread)) { 1924b5cf6b63SEddie Wai rc = -EINVAL; 1925b5cf6b63SEddie Wai goto err; 1926b5cf6b63SEddie Wai } 1927b5cf6b63SEddie Wai /* Alloc and copy to the cqe */ 1928b5cf6b63SEddie Wai bnx2i_work = kzalloc(sizeof(struct bnx2i_work), GFP_ATOMIC); 1929b5cf6b63SEddie Wai if (bnx2i_work) { 1930b5cf6b63SEddie Wai INIT_LIST_HEAD(&bnx2i_work->list); 1931b5cf6b63SEddie Wai bnx2i_work->session = session; 1932b5cf6b63SEddie Wai bnx2i_work->bnx2i_conn = bnx2i_conn; 1933b5cf6b63SEddie Wai memcpy(&bnx2i_work->cqe, cqe, sizeof(struct cqe)); 1934b5cf6b63SEddie Wai list_add_tail(&bnx2i_work->list, &p->work_list); 1935b5cf6b63SEddie Wai atomic_inc(&bnx2i_conn->work_cnt); 1936b5cf6b63SEddie Wai wake_up_process(p->iothread); 1937b5cf6b63SEddie Wai spin_unlock(&p->p_work_lock); 1938b5cf6b63SEddie Wai goto done; 1939b5cf6b63SEddie Wai } else 1940b5cf6b63SEddie Wai rc = -ENOMEM; 1941b5cf6b63SEddie Wai err: 1942b5cf6b63SEddie Wai spin_unlock(&p->p_work_lock); 1943b5cf6b63SEddie Wai bnx2i_process_scsi_cmd_resp(session, bnx2i_conn, (struct cqe *)cqe); 1944b5cf6b63SEddie Wai done: 1945b5cf6b63SEddie Wai return rc; 1946b5cf6b63SEddie Wai } 1947b5cf6b63SEddie Wai 1948cf4e6363SMichael Chan 1949cf4e6363SMichael Chan /** 1950cf4e6363SMichael Chan * bnx2i_process_new_cqes - process newly DMA'ed CQE's 1951b5cf6b63SEddie Wai * @bnx2i_conn: bnx2i connection 1952cf4e6363SMichael Chan * 1953cf4e6363SMichael Chan * this function is called by generic KCQ handler to process all pending CQE's 1954cf4e6363SMichael Chan */ 1955b5cf6b63SEddie Wai static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn) 1956cf4e6363SMichael Chan { 1957cf4e6363SMichael Chan struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; 1958cf4e6363SMichael Chan struct iscsi_session *session = conn->session; 19592e499d3cSBarak Witkowski struct bnx2i_hba *hba = bnx2i_conn->hba; 1960b5cf6b63SEddie Wai struct qp_info *qp; 1961cf4e6363SMichael Chan struct bnx2i_nop_in_msg *nopin; 1962cf4e6363SMichael Chan int tgt_async_msg; 1963b5cf6b63SEddie Wai int cqe_cnt = 0; 1964cf4e6363SMichael Chan 1965b5cf6b63SEddie Wai if (bnx2i_conn->ep == NULL) 1966b5cf6b63SEddie Wai return 0; 1967b5cf6b63SEddie Wai 1968b5cf6b63SEddie Wai qp = &bnx2i_conn->ep->qp; 1969b5cf6b63SEddie Wai 1970b5cf6b63SEddie Wai if (!qp->cq_virt) { 1971b5cf6b63SEddie Wai printk(KERN_ALERT "bnx2i (%s): cq resr freed in bh execution!", 19722e499d3cSBarak Witkowski hba->netdev->name); 1973b5cf6b63SEddie Wai goto out; 1974b5cf6b63SEddie Wai } 1975cf4e6363SMichael Chan while (1) { 1976cf4e6363SMichael Chan nopin = (struct bnx2i_nop_in_msg *) qp->cq_cons_qe; 1977cf4e6363SMichael Chan if (nopin->cq_req_sn != qp->cqe_exp_seq_sn) 1978cf4e6363SMichael Chan break; 1979cf4e6363SMichael Chan 19805ee32576SEddie Wai if (unlikely(test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx))) { 19815ee32576SEddie Wai if (nopin->op_code == ISCSI_OP_NOOP_IN && 19825ee32576SEddie Wai nopin->itt == (u16) RESERVED_ITT) { 19835ee32576SEddie Wai printk(KERN_ALERT "bnx2i: Unsolicited " 19845ee32576SEddie Wai "NOP-In detected for suspended " 19855ee32576SEddie Wai "connection dev=%s!\n", 19862e499d3cSBarak Witkowski hba->netdev->name); 19875ee32576SEddie Wai bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); 19885ee32576SEddie Wai goto cqe_out; 19895ee32576SEddie Wai } 1990cf4e6363SMichael Chan break; 19915ee32576SEddie Wai } 1992cf4e6363SMichael Chan tgt_async_msg = 0; 1993cf4e6363SMichael Chan 1994cf4e6363SMichael Chan switch (nopin->op_code) { 1995cf4e6363SMichael Chan case ISCSI_OP_SCSI_CMD_RSP: 1996cf4e6363SMichael Chan case ISCSI_OP_SCSI_DATA_IN: 1997b5cf6b63SEddie Wai /* Run the kthread engine only for data cmds 1998b5cf6b63SEddie Wai All other cmds will be completed in this bh! */ 1999b5cf6b63SEddie Wai bnx2i_queue_scsi_cmd_resp(session, bnx2i_conn, nopin); 20002e499d3cSBarak Witkowski goto done; 2001cf4e6363SMichael Chan case ISCSI_OP_LOGIN_RSP: 2002cf4e6363SMichael Chan bnx2i_process_login_resp(session, bnx2i_conn, 2003cf4e6363SMichael Chan qp->cq_cons_qe); 2004cf4e6363SMichael Chan break; 2005cf4e6363SMichael Chan case ISCSI_OP_SCSI_TMFUNC_RSP: 2006cf4e6363SMichael Chan bnx2i_process_tmf_resp(session, bnx2i_conn, 2007cf4e6363SMichael Chan qp->cq_cons_qe); 2008cf4e6363SMichael Chan break; 200909813ba5SEddie Wai case ISCSI_OP_TEXT_RSP: 201009813ba5SEddie Wai bnx2i_process_text_resp(session, bnx2i_conn, 201109813ba5SEddie Wai qp->cq_cons_qe); 201209813ba5SEddie Wai break; 2013cf4e6363SMichael Chan case ISCSI_OP_LOGOUT_RSP: 2014cf4e6363SMichael Chan bnx2i_process_logout_resp(session, bnx2i_conn, 2015cf4e6363SMichael Chan qp->cq_cons_qe); 2016cf4e6363SMichael Chan break; 2017cf4e6363SMichael Chan case ISCSI_OP_NOOP_IN: 2018cf4e6363SMichael Chan if (bnx2i_process_nopin_mesg(session, bnx2i_conn, 2019cf4e6363SMichael Chan qp->cq_cons_qe)) 2020cf4e6363SMichael Chan tgt_async_msg = 1; 2021cf4e6363SMichael Chan break; 2022cf4e6363SMichael Chan case ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION: 2023cf4e6363SMichael Chan bnx2i_process_nopin_local_cmpl(session, bnx2i_conn, 2024cf4e6363SMichael Chan qp->cq_cons_qe); 2025cf4e6363SMichael Chan break; 2026cf4e6363SMichael Chan case ISCSI_OP_ASYNC_EVENT: 2027cf4e6363SMichael Chan bnx2i_process_async_mesg(session, bnx2i_conn, 2028cf4e6363SMichael Chan qp->cq_cons_qe); 2029cf4e6363SMichael Chan tgt_async_msg = 1; 2030cf4e6363SMichael Chan break; 2031cf4e6363SMichael Chan case ISCSI_OP_REJECT: 2032cf4e6363SMichael Chan bnx2i_process_reject_mesg(session, bnx2i_conn, 2033cf4e6363SMichael Chan qp->cq_cons_qe); 2034cf4e6363SMichael Chan break; 2035cf4e6363SMichael Chan case ISCSI_OPCODE_CLEANUP_RESPONSE: 2036cf4e6363SMichael Chan bnx2i_process_cmd_cleanup_resp(session, bnx2i_conn, 2037cf4e6363SMichael Chan qp->cq_cons_qe); 2038cf4e6363SMichael Chan break; 2039cf4e6363SMichael Chan default: 2040cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n", 2041cf4e6363SMichael Chan nopin->op_code); 2042cf4e6363SMichael Chan } 20432e499d3cSBarak Witkowski 20442e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_pdus, 1); 20452e499d3cSBarak Witkowski ADD_STATS_64(hba, rx_bytes, nopin->data_length); 20462e499d3cSBarak Witkowski done: 2047b5cf6b63SEddie Wai if (!tgt_async_msg) { 2048b5cf6b63SEddie Wai if (!atomic_read(&bnx2i_conn->ep->num_active_cmds)) 2049b5cf6b63SEddie Wai printk(KERN_ALERT "bnx2i (%s): no active cmd! " 2050b5cf6b63SEddie Wai "op 0x%x\n", 20512e499d3cSBarak Witkowski hba->netdev->name, 2052b5cf6b63SEddie Wai nopin->op_code); 2053b5cf6b63SEddie Wai else 2054b5cf6b63SEddie Wai atomic_dec(&bnx2i_conn->ep->num_active_cmds); 2055b5cf6b63SEddie Wai } 20565ee32576SEddie Wai cqe_out: 2057cf4e6363SMichael Chan /* clear out in production version only, till beta keep opcode 2058cf4e6363SMichael Chan * field intact, will be helpful in debugging (context dump) 2059cf4e6363SMichael Chan * nopin->op_code = 0; 2060cf4e6363SMichael Chan */ 2061b5cf6b63SEddie Wai cqe_cnt++; 2062cf4e6363SMichael Chan qp->cqe_exp_seq_sn++; 2063cf4e6363SMichael Chan if (qp->cqe_exp_seq_sn == (qp->cqe_size * 2 + 1)) 2064cf4e6363SMichael Chan qp->cqe_exp_seq_sn = ISCSI_INITIAL_SN; 2065cf4e6363SMichael Chan 2066cf4e6363SMichael Chan if (qp->cq_cons_qe == qp->cq_last_qe) { 2067cf4e6363SMichael Chan qp->cq_cons_qe = qp->cq_first_qe; 2068cf4e6363SMichael Chan qp->cq_cons_idx = 0; 2069cf4e6363SMichael Chan } else { 2070cf4e6363SMichael Chan qp->cq_cons_qe++; 2071cf4e6363SMichael Chan qp->cq_cons_idx++; 2072cf4e6363SMichael Chan } 2073cf4e6363SMichael Chan } 2074b5cf6b63SEddie Wai out: 2075b5cf6b63SEddie Wai return cqe_cnt; 2076cf4e6363SMichael Chan } 2077cf4e6363SMichael Chan 2078cf4e6363SMichael Chan /** 2079cf4e6363SMichael Chan * bnx2i_fastpath_notification - process global event queue (KCQ) 2080cf4e6363SMichael Chan * @hba: adapter structure pointer 2081cf4e6363SMichael Chan * @new_cqe_kcqe: pointer to newly DMA'ed KCQE entry 2082cf4e6363SMichael Chan * 2083cf4e6363SMichael Chan * Fast path event notification handler, KCQ entry carries context id 2084cf4e6363SMichael Chan * of the connection that has 1 or more pending CQ entries 2085cf4e6363SMichael Chan */ 2086cf4e6363SMichael Chan static void bnx2i_fastpath_notification(struct bnx2i_hba *hba, 2087cf4e6363SMichael Chan struct iscsi_kcqe *new_cqe_kcqe) 2088cf4e6363SMichael Chan { 20899ae58e14SEddie Wai struct bnx2i_conn *bnx2i_conn; 2090cf4e6363SMichael Chan u32 iscsi_cid; 2091b5cf6b63SEddie Wai int nxt_idx; 2092cf4e6363SMichael Chan 2093cf4e6363SMichael Chan iscsi_cid = new_cqe_kcqe->iscsi_conn_id; 20949ae58e14SEddie Wai bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 2095cf4e6363SMichael Chan 20969ae58e14SEddie Wai if (!bnx2i_conn) { 2097cf4e6363SMichael Chan printk(KERN_ALERT "cid #%x not valid\n", iscsi_cid); 2098cf4e6363SMichael Chan return; 2099cf4e6363SMichael Chan } 21009ae58e14SEddie Wai if (!bnx2i_conn->ep) { 2101cf4e6363SMichael Chan printk(KERN_ALERT "cid #%x - ep not bound\n", iscsi_cid); 2102cf4e6363SMichael Chan return; 2103cf4e6363SMichael Chan } 2104b5cf6b63SEddie Wai 21059ae58e14SEddie Wai bnx2i_process_new_cqes(bnx2i_conn); 2106b5cf6b63SEddie Wai nxt_idx = bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, 2107b5cf6b63SEddie Wai CNIC_ARM_CQE_FP); 2108b5cf6b63SEddie Wai if (nxt_idx && nxt_idx == bnx2i_process_new_cqes(bnx2i_conn)) 21099ae58e14SEddie Wai bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, CNIC_ARM_CQE_FP); 2110cf4e6363SMichael Chan } 2111cf4e6363SMichael Chan 2112cf4e6363SMichael Chan 2113cf4e6363SMichael Chan /** 2114cf4e6363SMichael Chan * bnx2i_process_update_conn_cmpl - process iscsi conn update completion KCQE 2115cf4e6363SMichael Chan * @hba: adapter structure pointer 2116cf4e6363SMichael Chan * @update_kcqe: kcqe pointer 2117cf4e6363SMichael Chan * 2118cf4e6363SMichael Chan * CONN_UPDATE completion handler, this completes iSCSI connection FFP migration 2119cf4e6363SMichael Chan */ 2120cf4e6363SMichael Chan static void bnx2i_process_update_conn_cmpl(struct bnx2i_hba *hba, 2121cf4e6363SMichael Chan struct iscsi_kcqe *update_kcqe) 2122cf4e6363SMichael Chan { 2123cf4e6363SMichael Chan struct bnx2i_conn *conn; 2124cf4e6363SMichael Chan u32 iscsi_cid; 2125cf4e6363SMichael Chan 2126cf4e6363SMichael Chan iscsi_cid = update_kcqe->iscsi_conn_id; 2127cf4e6363SMichael Chan conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 2128cf4e6363SMichael Chan 2129cf4e6363SMichael Chan if (!conn) { 2130cf4e6363SMichael Chan printk(KERN_ALERT "conn_update: cid %x not valid\n", iscsi_cid); 2131cf4e6363SMichael Chan return; 2132cf4e6363SMichael Chan } 2133cf4e6363SMichael Chan if (!conn->ep) { 2134cf4e6363SMichael Chan printk(KERN_ALERT "cid %x does not have ep bound\n", iscsi_cid); 2135cf4e6363SMichael Chan return; 2136cf4e6363SMichael Chan } 2137cf4e6363SMichael Chan 2138cf4e6363SMichael Chan if (update_kcqe->completion_status) { 2139cf4e6363SMichael Chan printk(KERN_ALERT "request failed cid %x\n", iscsi_cid); 2140cf4e6363SMichael Chan conn->ep->state = EP_STATE_ULP_UPDATE_FAILED; 2141cf4e6363SMichael Chan } else 2142cf4e6363SMichael Chan conn->ep->state = EP_STATE_ULP_UPDATE_COMPL; 2143cf4e6363SMichael Chan 2144cf4e6363SMichael Chan wake_up_interruptible(&conn->ep->ofld_wait); 2145cf4e6363SMichael Chan } 2146cf4e6363SMichael Chan 2147cf4e6363SMichael Chan 2148cf4e6363SMichael Chan /** 2149cf4e6363SMichael Chan * bnx2i_recovery_que_add_conn - add connection to recovery queue 2150cf4e6363SMichael Chan * @hba: adapter structure pointer 2151cf4e6363SMichael Chan * @bnx2i_conn: iscsi connection 2152cf4e6363SMichael Chan * 2153cf4e6363SMichael Chan * Add connection to recovery queue and schedule adapter eh worker 2154cf4e6363SMichael Chan */ 2155cf4e6363SMichael Chan static void bnx2i_recovery_que_add_conn(struct bnx2i_hba *hba, 2156cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn) 2157cf4e6363SMichael Chan { 2158cf4e6363SMichael Chan iscsi_conn_failure(bnx2i_conn->cls_conn->dd_data, 2159cf4e6363SMichael Chan ISCSI_ERR_CONN_FAILED); 2160cf4e6363SMichael Chan } 2161cf4e6363SMichael Chan 2162cf4e6363SMichael Chan 2163cf4e6363SMichael Chan /** 2164cf4e6363SMichael Chan * bnx2i_process_tcp_error - process error notification on a given connection 2165cf4e6363SMichael Chan * 2166cf4e6363SMichael Chan * @hba: adapter structure pointer 2167cf4e6363SMichael Chan * @tcp_err: tcp error kcqe pointer 2168cf4e6363SMichael Chan * 2169cf4e6363SMichael Chan * handles tcp level error notifications from FW. 2170cf4e6363SMichael Chan */ 2171cf4e6363SMichael Chan static void bnx2i_process_tcp_error(struct bnx2i_hba *hba, 2172cf4e6363SMichael Chan struct iscsi_kcqe *tcp_err) 2173cf4e6363SMichael Chan { 2174cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn; 2175cf4e6363SMichael Chan u32 iscsi_cid; 2176cf4e6363SMichael Chan 2177cf4e6363SMichael Chan iscsi_cid = tcp_err->iscsi_conn_id; 2178cf4e6363SMichael Chan bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 2179cf4e6363SMichael Chan 2180cf4e6363SMichael Chan if (!bnx2i_conn) { 2181cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid); 2182cf4e6363SMichael Chan return; 2183cf4e6363SMichael Chan } 2184cf4e6363SMichael Chan 2185cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x had TCP errors, error code 0x%x\n", 2186cf4e6363SMichael Chan iscsi_cid, tcp_err->completion_status); 2187cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn); 2188cf4e6363SMichael Chan } 2189cf4e6363SMichael Chan 2190cf4e6363SMichael Chan 2191cf4e6363SMichael Chan /** 2192cf4e6363SMichael Chan * bnx2i_process_iscsi_error - process error notification on a given connection 2193cf4e6363SMichael Chan * @hba: adapter structure pointer 2194cf4e6363SMichael Chan * @iscsi_err: iscsi error kcqe pointer 2195cf4e6363SMichael Chan * 2196cf4e6363SMichael Chan * handles iscsi error notifications from the FW. Firmware based in initial 2197cf4e6363SMichael Chan * handshake classifies iscsi protocol / TCP rfc violation into either 2198cf4e6363SMichael Chan * warning or error indications. If indication is of "Error" type, driver 2199cf4e6363SMichael Chan * will initiate session recovery for that connection/session. For 2200cf4e6363SMichael Chan * "Warning" type indication, driver will put out a system log message 2201cf4e6363SMichael Chan * (there will be only one message for each type for the life of the 2202cf4e6363SMichael Chan * session, this is to avoid un-necessarily overloading the system) 2203cf4e6363SMichael Chan */ 2204cf4e6363SMichael Chan static void bnx2i_process_iscsi_error(struct bnx2i_hba *hba, 2205cf4e6363SMichael Chan struct iscsi_kcqe *iscsi_err) 2206cf4e6363SMichael Chan { 2207cf4e6363SMichael Chan struct bnx2i_conn *bnx2i_conn; 2208cf4e6363SMichael Chan u32 iscsi_cid; 2209cf4e6363SMichael Chan char warn_notice[] = "iscsi_warning"; 2210cf4e6363SMichael Chan char error_notice[] = "iscsi_error"; 2211cf4e6363SMichael Chan char additional_notice[64]; 2212cf4e6363SMichael Chan char *message; 2213cf4e6363SMichael Chan int need_recovery; 2214cf4e6363SMichael Chan u64 err_mask64; 2215cf4e6363SMichael Chan 2216cf4e6363SMichael Chan iscsi_cid = iscsi_err->iscsi_conn_id; 2217cf4e6363SMichael Chan bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); 2218cf4e6363SMichael Chan if (!bnx2i_conn) { 2219cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid); 2220cf4e6363SMichael Chan return; 2221cf4e6363SMichael Chan } 2222cf4e6363SMichael Chan 2223cf4e6363SMichael Chan err_mask64 = (0x1ULL << iscsi_err->completion_status); 2224cf4e6363SMichael Chan 2225cf4e6363SMichael Chan if (err_mask64 & iscsi_error_mask) { 2226cf4e6363SMichael Chan need_recovery = 0; 2227cf4e6363SMichael Chan message = warn_notice; 2228cf4e6363SMichael Chan } else { 2229cf4e6363SMichael Chan need_recovery = 1; 2230cf4e6363SMichael Chan message = error_notice; 2231cf4e6363SMichael Chan } 2232cf4e6363SMichael Chan 2233cf4e6363SMichael Chan switch (iscsi_err->completion_status) { 2234cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR: 2235cf4e6363SMichael Chan strcpy(additional_notice, "hdr digest err"); 2236cf4e6363SMichael Chan break; 2237cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR: 2238cf4e6363SMichael Chan strcpy(additional_notice, "data digest err"); 2239cf4e6363SMichael Chan break; 2240cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE: 2241cf4e6363SMichael Chan strcpy(additional_notice, "wrong opcode rcvd"); 2242cf4e6363SMichael Chan break; 2243cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN: 2244cf4e6363SMichael Chan strcpy(additional_notice, "AHS len > 0 rcvd"); 2245cf4e6363SMichael Chan break; 2246cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT: 2247cf4e6363SMichael Chan strcpy(additional_notice, "invalid ITT rcvd"); 2248cf4e6363SMichael Chan break; 2249cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN: 2250cf4e6363SMichael Chan strcpy(additional_notice, "wrong StatSN rcvd"); 2251cf4e6363SMichael Chan break; 2252cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN: 2253cf4e6363SMichael Chan strcpy(additional_notice, "wrong DataSN rcvd"); 2254cf4e6363SMichael Chan break; 2255cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T: 2256cf4e6363SMichael Chan strcpy(additional_notice, "pend R2T violation"); 2257cf4e6363SMichael Chan break; 2258cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0: 2259cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, UO"); 2260cf4e6363SMichael Chan break; 2261cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1: 2262cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U1"); 2263cf4e6363SMichael Chan break; 2264cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2: 2265cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U2"); 2266cf4e6363SMichael Chan break; 2267cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3: 2268cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U3"); 2269cf4e6363SMichael Chan break; 2270cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4: 2271cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U4"); 2272cf4e6363SMichael Chan break; 2273cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5: 2274cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U5"); 2275cf4e6363SMichael Chan break; 2276cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6: 2277cf4e6363SMichael Chan strcpy(additional_notice, "ERL0, U6"); 2278cf4e6363SMichael Chan break; 2279cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN: 2280cf4e6363SMichael Chan strcpy(additional_notice, "invalid resi len"); 2281cf4e6363SMichael Chan break; 2282cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN: 2283cf4e6363SMichael Chan strcpy(additional_notice, "MRDSL violation"); 2284cf4e6363SMichael Chan break; 2285cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO: 2286cf4e6363SMichael Chan strcpy(additional_notice, "F-bit not set"); 2287cf4e6363SMichael Chan break; 2288cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV: 2289cf4e6363SMichael Chan strcpy(additional_notice, "invalid TTT"); 2290cf4e6363SMichael Chan break; 2291cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN: 2292cf4e6363SMichael Chan strcpy(additional_notice, "invalid DataSN"); 2293cf4e6363SMichael Chan break; 2294cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN: 2295cf4e6363SMichael Chan strcpy(additional_notice, "burst len violation"); 2296cf4e6363SMichael Chan break; 2297cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF: 2298cf4e6363SMichael Chan strcpy(additional_notice, "buf offset violation"); 2299cf4e6363SMichael Chan break; 2300cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN: 2301cf4e6363SMichael Chan strcpy(additional_notice, "invalid LUN field"); 2302cf4e6363SMichael Chan break; 2303cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN: 2304cf4e6363SMichael Chan strcpy(additional_notice, "invalid R2TSN field"); 2305cf4e6363SMichael Chan break; 2306cf4e6363SMichael Chan #define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0 \ 2307cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 2308cf4e6363SMichael Chan case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0: 2309cf4e6363SMichael Chan strcpy(additional_notice, "invalid cmd len1"); 2310cf4e6363SMichael Chan break; 2311cf4e6363SMichael Chan #define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1 \ 2312cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 2313cf4e6363SMichael Chan case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1: 2314cf4e6363SMichael Chan strcpy(additional_notice, "invalid cmd len2"); 2315cf4e6363SMichael Chan break; 2316cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED: 2317cf4e6363SMichael Chan strcpy(additional_notice, 2318cf4e6363SMichael Chan "pend r2t exceeds MaxOutstandingR2T value"); 2319cf4e6363SMichael Chan break; 2320cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV: 2321cf4e6363SMichael Chan strcpy(additional_notice, "TTT is rsvd"); 2322cf4e6363SMichael Chan break; 2323cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN: 2324cf4e6363SMichael Chan strcpy(additional_notice, "MBL violation"); 2325cf4e6363SMichael Chan break; 2326cf4e6363SMichael Chan #define BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO \ 2327cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO 2328cf4e6363SMichael Chan case BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO: 2329cf4e6363SMichael Chan strcpy(additional_notice, "data seg len != 0"); 2330cf4e6363SMichael Chan break; 2331cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN: 2332cf4e6363SMichael Chan strcpy(additional_notice, "reject pdu len error"); 2333cf4e6363SMichael Chan break; 2334cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ASYNC_PDU_LEN: 2335cf4e6363SMichael Chan strcpy(additional_notice, "async pdu len error"); 2336cf4e6363SMichael Chan break; 2337cf4e6363SMichael Chan case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_NOPIN_PDU_LEN: 2338cf4e6363SMichael Chan strcpy(additional_notice, "nopin pdu len error"); 2339cf4e6363SMichael Chan break; 2340cf4e6363SMichael Chan #define BNX2_ERR_PEND_R2T_IN_CLEANUP \ 2341cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_IN_CLEANUP 2342cf4e6363SMichael Chan case BNX2_ERR_PEND_R2T_IN_CLEANUP: 2343cf4e6363SMichael Chan strcpy(additional_notice, "pend r2t in cleanup"); 2344cf4e6363SMichael Chan break; 2345cf4e6363SMichael Chan 2346cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT: 2347cf4e6363SMichael Chan strcpy(additional_notice, "IP fragments rcvd"); 2348cf4e6363SMichael Chan break; 2349cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS: 2350cf4e6363SMichael Chan strcpy(additional_notice, "IP options error"); 2351cf4e6363SMichael Chan break; 2352cf4e6363SMichael Chan case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG: 2353cf4e6363SMichael Chan strcpy(additional_notice, "urgent flag error"); 2354cf4e6363SMichael Chan break; 2355cf4e6363SMichael Chan default: 2356cf4e6363SMichael Chan printk(KERN_ALERT "iscsi_err - unknown err %x\n", 2357cf4e6363SMichael Chan iscsi_err->completion_status); 2358cf4e6363SMichael Chan } 2359cf4e6363SMichael Chan 2360cf4e6363SMichael Chan if (need_recovery) { 2361cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2362cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2363cf4e6363SMichael Chan "bnx2i: %s - %s\n", 2364cf4e6363SMichael Chan message, additional_notice); 2365cf4e6363SMichael Chan 2366cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2367cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2368cf4e6363SMichael Chan "conn_err - hostno %d conn %p, " 2369cf4e6363SMichael Chan "iscsi_cid %x cid %x\n", 2370cf4e6363SMichael Chan bnx2i_conn->hba->shost->host_no, 2371cf4e6363SMichael Chan bnx2i_conn, bnx2i_conn->ep->ep_iscsi_cid, 2372cf4e6363SMichael Chan bnx2i_conn->ep->ep_cid); 2373cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn); 2374cf4e6363SMichael Chan } else 2375cf4e6363SMichael Chan if (!test_and_set_bit(iscsi_err->completion_status, 2376cf4e6363SMichael Chan (void *) &bnx2i_conn->violation_notified)) 2377cf4e6363SMichael Chan iscsi_conn_printk(KERN_ALERT, 2378cf4e6363SMichael Chan bnx2i_conn->cls_conn->dd_data, 2379cf4e6363SMichael Chan "bnx2i: %s - %s\n", 2380cf4e6363SMichael Chan message, additional_notice); 2381cf4e6363SMichael Chan } 2382cf4e6363SMichael Chan 2383cf4e6363SMichael Chan 2384cf4e6363SMichael Chan /** 2385cf4e6363SMichael Chan * bnx2i_process_conn_destroy_cmpl - process iscsi conn destroy completion 2386cf4e6363SMichael Chan * @hba: adapter structure pointer 2387cf4e6363SMichael Chan * @conn_destroy: conn destroy kcqe pointer 2388cf4e6363SMichael Chan * 2389cf4e6363SMichael Chan * handles connection destroy completion request. 2390cf4e6363SMichael Chan */ 2391cf4e6363SMichael Chan static void bnx2i_process_conn_destroy_cmpl(struct bnx2i_hba *hba, 2392cf4e6363SMichael Chan struct iscsi_kcqe *conn_destroy) 2393cf4e6363SMichael Chan { 2394cf4e6363SMichael Chan struct bnx2i_endpoint *ep; 2395cf4e6363SMichael Chan 2396cf4e6363SMichael Chan ep = bnx2i_find_ep_in_destroy_list(hba, conn_destroy->iscsi_conn_id); 2397cf4e6363SMichael Chan if (!ep) { 2398cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i_conn_destroy_cmpl: no pending " 239909d2a4e7SColin Ian King "offload request, unexpected completion\n"); 2400cf4e6363SMichael Chan return; 2401cf4e6363SMichael Chan } 2402cf4e6363SMichael Chan 2403cf4e6363SMichael Chan if (hba != ep->hba) { 2404cf4e6363SMichael Chan printk(KERN_ALERT "conn destroy- error hba mis-match\n"); 2405cf4e6363SMichael Chan return; 2406cf4e6363SMichael Chan } 2407cf4e6363SMichael Chan 2408cf4e6363SMichael Chan if (conn_destroy->completion_status) { 2409cf4e6363SMichael Chan printk(KERN_ALERT "conn_destroy_cmpl: op failed\n"); 2410cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_FAILED; 2411cf4e6363SMichael Chan } else 2412cf4e6363SMichael Chan ep->state = EP_STATE_CLEANUP_CMPL; 2413cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2414cf4e6363SMichael Chan } 2415cf4e6363SMichael Chan 2416cf4e6363SMichael Chan 2417cf4e6363SMichael Chan /** 2418cf4e6363SMichael Chan * bnx2i_process_ofld_cmpl - process initial iscsi conn offload completion 2419cf4e6363SMichael Chan * @hba: adapter structure pointer 2420cf4e6363SMichael Chan * @ofld_kcqe: conn offload kcqe pointer 2421cf4e6363SMichael Chan * 2422cf4e6363SMichael Chan * handles initial connection offload completion, ep_connect() thread is 2423cf4e6363SMichael Chan * woken-up to continue with LLP connect process 2424cf4e6363SMichael Chan */ 2425cf4e6363SMichael Chan static void bnx2i_process_ofld_cmpl(struct bnx2i_hba *hba, 2426cf4e6363SMichael Chan struct iscsi_kcqe *ofld_kcqe) 2427cf4e6363SMichael Chan { 2428cf4e6363SMichael Chan u32 cid_addr; 2429cf4e6363SMichael Chan struct bnx2i_endpoint *ep; 2430cf4e6363SMichael Chan 2431cf4e6363SMichael Chan ep = bnx2i_find_ep_in_ofld_list(hba, ofld_kcqe->iscsi_conn_id); 2432cf4e6363SMichael Chan if (!ep) { 2433cf4e6363SMichael Chan printk(KERN_ALERT "ofld_cmpl: no pend offload request\n"); 2434cf4e6363SMichael Chan return; 2435cf4e6363SMichael Chan } 2436cf4e6363SMichael Chan 2437cf4e6363SMichael Chan if (hba != ep->hba) { 2438cf4e6363SMichael Chan printk(KERN_ALERT "ofld_cmpl: error hba mis-match\n"); 2439cf4e6363SMichael Chan return; 2440cf4e6363SMichael Chan } 2441cf4e6363SMichael Chan 2442cf4e6363SMichael Chan if (ofld_kcqe->completion_status) { 2443bee34877SEddie Wai ep->state = EP_STATE_OFLD_FAILED; 2444cf4e6363SMichael Chan if (ofld_kcqe->completion_status == 2445cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) 2446bee34877SEddie Wai printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - unable " 2447bee34877SEddie Wai "to allocate iSCSI context resources\n", 2448bee34877SEddie Wai hba->netdev->name); 2449bee34877SEddie Wai else if (ofld_kcqe->completion_status == 2450bee34877SEddie Wai ISCSI_KCQE_COMPLETION_STATUS_INVALID_OPCODE) 2451bee34877SEddie Wai printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - invalid " 2452bee34877SEddie Wai "opcode\n", hba->netdev->name); 2453bee34877SEddie Wai else if (ofld_kcqe->completion_status == 2454bee34877SEddie Wai ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY) 2455bee34877SEddie Wai /* error status code valid only for 5771x chipset */ 2456bee34877SEddie Wai ep->state = EP_STATE_OFLD_FAILED_CID_BUSY; 2457bee34877SEddie Wai else 2458bee34877SEddie Wai printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - invalid " 2459bee34877SEddie Wai "error code %d\n", hba->netdev->name, 2460bee34877SEddie Wai ofld_kcqe->completion_status); 2461cf4e6363SMichael Chan } else { 2462cf4e6363SMichael Chan ep->state = EP_STATE_OFLD_COMPL; 2463cf4e6363SMichael Chan cid_addr = ofld_kcqe->iscsi_conn_context_id; 2464cf4e6363SMichael Chan ep->ep_cid = cid_addr; 2465cf4e6363SMichael Chan ep->qp.ctx_base = NULL; 2466cf4e6363SMichael Chan } 2467cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2468cf4e6363SMichael Chan } 2469cf4e6363SMichael Chan 2470cf4e6363SMichael Chan /** 2471cf4e6363SMichael Chan * bnx2i_indicate_kcqe - process iscsi conn update completion KCQE 2472dd3273c9SLee Jones * @context: adapter structure pointer 2473dd3273c9SLee Jones * @kcqe: kcqe pointer 2474dd3273c9SLee Jones * @num_cqe: number of kcqes to process 2475cf4e6363SMichael Chan * 2476cf4e6363SMichael Chan * Generic KCQ event handler/dispatcher 2477cf4e6363SMichael Chan */ 2478cf4e6363SMichael Chan static void bnx2i_indicate_kcqe(void *context, struct kcqe *kcqe[], 2479cf4e6363SMichael Chan u32 num_cqe) 2480cf4e6363SMichael Chan { 2481cf4e6363SMichael Chan struct bnx2i_hba *hba = context; 2482cf4e6363SMichael Chan int i = 0; 2483cf4e6363SMichael Chan struct iscsi_kcqe *ikcqe = NULL; 2484cf4e6363SMichael Chan 2485cf4e6363SMichael Chan while (i < num_cqe) { 2486cf4e6363SMichael Chan ikcqe = (struct iscsi_kcqe *) kcqe[i++]; 2487cf4e6363SMichael Chan 2488cf4e6363SMichael Chan if (ikcqe->op_code == 2489cf4e6363SMichael Chan ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION) 2490cf4e6363SMichael Chan bnx2i_fastpath_notification(hba, ikcqe); 2491cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_OFFLOAD_CONN) 2492cf4e6363SMichael Chan bnx2i_process_ofld_cmpl(hba, ikcqe); 2493cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_UPDATE_CONN) 2494cf4e6363SMichael Chan bnx2i_process_update_conn_cmpl(hba, ikcqe); 2495cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_INIT) { 2496cf4e6363SMichael Chan if (ikcqe->completion_status != 2497cf4e6363SMichael Chan ISCSI_KCQE_COMPLETION_STATUS_SUCCESS) 2498cf4e6363SMichael Chan bnx2i_iscsi_license_error(hba, ikcqe->\ 2499cf4e6363SMichael Chan completion_status); 2500cf4e6363SMichael Chan else { 2501cf4e6363SMichael Chan set_bit(ADAPTER_STATE_UP, &hba->adapter_state); 2502cf4e6363SMichael Chan bnx2i_get_link_state(hba); 2503cf4e6363SMichael Chan printk(KERN_INFO "bnx2i [%.2x:%.2x.%.2x]: " 2504cf4e6363SMichael Chan "ISCSI_INIT passed\n", 2505cf4e6363SMichael Chan (u8)hba->pcidev->bus->number, 2506cf4e6363SMichael Chan hba->pci_devno, 2507cf4e6363SMichael Chan (u8)hba->pci_func); 2508cf4e6363SMichael Chan 2509cf4e6363SMichael Chan 2510cf4e6363SMichael Chan } 2511cf4e6363SMichael Chan } else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_DESTROY_CONN) 2512cf4e6363SMichael Chan bnx2i_process_conn_destroy_cmpl(hba, ikcqe); 2513cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_ISCSI_ERROR) 2514cf4e6363SMichael Chan bnx2i_process_iscsi_error(hba, ikcqe); 2515cf4e6363SMichael Chan else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_TCP_ERROR) 2516cf4e6363SMichael Chan bnx2i_process_tcp_error(hba, ikcqe); 2517cf4e6363SMichael Chan else 2518cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n", 2519cf4e6363SMichael Chan ikcqe->op_code); 2520cf4e6363SMichael Chan } 2521cf4e6363SMichael Chan } 2522cf4e6363SMichael Chan 2523cf4e6363SMichael Chan 2524cf4e6363SMichael Chan /** 2525cf4e6363SMichael Chan * bnx2i_indicate_netevent - Generic netdev event handler 2526cf4e6363SMichael Chan * @context: adapter structure pointer 2527cf4e6363SMichael Chan * @event: event type 2528415199f2SMichael Chan * @vlan_id: vlans id - associated vlan id with this event 2529cf4e6363SMichael Chan * 2530cf4e6363SMichael Chan * Handles four netdev events, NETDEV_UP, NETDEV_DOWN, 2531cf4e6363SMichael Chan * NETDEV_GOING_DOWN and NETDEV_CHANGE 2532cf4e6363SMichael Chan */ 2533415199f2SMichael Chan static void bnx2i_indicate_netevent(void *context, unsigned long event, 2534415199f2SMichael Chan u16 vlan_id) 2535cf4e6363SMichael Chan { 2536cf4e6363SMichael Chan struct bnx2i_hba *hba = context; 2537cf4e6363SMichael Chan 2538415199f2SMichael Chan /* Ignore all netevent coming from vlans */ 2539415199f2SMichael Chan if (vlan_id != 0) 2540415199f2SMichael Chan return; 2541415199f2SMichael Chan 2542cf4e6363SMichael Chan switch (event) { 2543cf4e6363SMichael Chan case NETDEV_UP: 2544cf4e6363SMichael Chan if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) 2545cf4e6363SMichael Chan bnx2i_send_fw_iscsi_init_msg(hba); 2546cf4e6363SMichael Chan break; 2547cf4e6363SMichael Chan case NETDEV_DOWN: 2548cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); 2549cf4e6363SMichael Chan clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); 2550cf4e6363SMichael Chan break; 2551cf4e6363SMichael Chan case NETDEV_GOING_DOWN: 2552cf4e6363SMichael Chan set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); 2553cf4e6363SMichael Chan iscsi_host_for_each_session(hba->shost, 2554cf4e6363SMichael Chan bnx2i_drop_session); 2555cf4e6363SMichael Chan break; 2556cf4e6363SMichael Chan case NETDEV_CHANGE: 2557cf4e6363SMichael Chan bnx2i_get_link_state(hba); 2558cf4e6363SMichael Chan break; 2559cf4e6363SMichael Chan default: 2560cf4e6363SMichael Chan ; 2561cf4e6363SMichael Chan } 2562cf4e6363SMichael Chan } 2563cf4e6363SMichael Chan 2564cf4e6363SMichael Chan 2565cf4e6363SMichael Chan /** 2566cf4e6363SMichael Chan * bnx2i_cm_connect_cmpl - process iscsi conn establishment completion 2567cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2568cf4e6363SMichael Chan * 2569cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2570cf4e6363SMichael Chan * indicate completion of option-2 TCP connect request. 2571cf4e6363SMichael Chan */ 2572cf4e6363SMichael Chan static void bnx2i_cm_connect_cmpl(struct cnic_sock *cm_sk) 2573cf4e6363SMichael Chan { 2574cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2575cf4e6363SMichael Chan 2576cf4e6363SMichael Chan if (test_bit(ADAPTER_STATE_GOING_DOWN, &ep->hba->adapter_state)) 2577cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_FAILED; 2578cf4e6363SMichael Chan else if (test_bit(SK_F_OFFLD_COMPLETE, &cm_sk->flags)) 2579cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_COMPL; 2580cf4e6363SMichael Chan else 2581cf4e6363SMichael Chan ep->state = EP_STATE_CONNECT_FAILED; 2582cf4e6363SMichael Chan 2583cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2584cf4e6363SMichael Chan } 2585cf4e6363SMichael Chan 2586cf4e6363SMichael Chan 2587cf4e6363SMichael Chan /** 2588cf4e6363SMichael Chan * bnx2i_cm_close_cmpl - process tcp conn close completion 2589cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2590cf4e6363SMichael Chan * 2591cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2592cf4e6363SMichael Chan * indicate completion of option-2 graceful TCP connect shutdown 2593cf4e6363SMichael Chan */ 2594cf4e6363SMichael Chan static void bnx2i_cm_close_cmpl(struct cnic_sock *cm_sk) 2595cf4e6363SMichael Chan { 2596cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2597cf4e6363SMichael Chan 2598cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_COMPL; 2599cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2600cf4e6363SMichael Chan } 2601cf4e6363SMichael Chan 2602cf4e6363SMichael Chan 2603cf4e6363SMichael Chan /** 2604cf4e6363SMichael Chan * bnx2i_cm_abort_cmpl - process abortive tcp conn teardown completion 2605cf4e6363SMichael Chan * @cm_sk: cnic sock structure pointer 2606cf4e6363SMichael Chan * 2607cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2608cf4e6363SMichael Chan * indicate completion of option-2 abortive TCP connect termination 2609cf4e6363SMichael Chan */ 2610cf4e6363SMichael Chan static void bnx2i_cm_abort_cmpl(struct cnic_sock *cm_sk) 2611cf4e6363SMichael Chan { 2612cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2613cf4e6363SMichael Chan 2614cf4e6363SMichael Chan ep->state = EP_STATE_DISCONN_COMPL; 2615cf4e6363SMichael Chan wake_up_interruptible(&ep->ofld_wait); 2616cf4e6363SMichael Chan } 2617cf4e6363SMichael Chan 2618cf4e6363SMichael Chan 2619cf4e6363SMichael Chan /** 2620cf4e6363SMichael Chan * bnx2i_cm_remote_close - process received TCP FIN 2621dd3273c9SLee Jones * @cm_sk: cnic sock structure pointer 2622cf4e6363SMichael Chan * 2623cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to indicate 2624cf4e6363SMichael Chan * async TCP events such as FIN 2625cf4e6363SMichael Chan */ 2626cf4e6363SMichael Chan static void bnx2i_cm_remote_close(struct cnic_sock *cm_sk) 2627cf4e6363SMichael Chan { 2628cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 2629cf4e6363SMichael Chan 2630cf4e6363SMichael Chan ep->state = EP_STATE_TCP_FIN_RCVD; 2631cf4e6363SMichael Chan if (ep->conn) 2632cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(ep->hba, ep->conn); 2633cf4e6363SMichael Chan } 2634cf4e6363SMichael Chan 2635cf4e6363SMichael Chan /** 2636cf4e6363SMichael Chan * bnx2i_cm_remote_abort - process TCP RST and start conn cleanup 2637dd3273c9SLee Jones * @cm_sk: cnic sock structure pointer 2638cf4e6363SMichael Chan * 2639cf4e6363SMichael Chan * function callback exported via bnx2i - cnic driver interface to 2640cf4e6363SMichael Chan * indicate async TCP events (RST) sent by the peer. 2641cf4e6363SMichael Chan */ 2642cf4e6363SMichael Chan static void bnx2i_cm_remote_abort(struct cnic_sock *cm_sk) 2643cf4e6363SMichael Chan { 2644cf4e6363SMichael Chan struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; 264594810e82SEddie Wai u32 old_state = ep->state; 2646cf4e6363SMichael Chan 2647cf4e6363SMichael Chan ep->state = EP_STATE_TCP_RST_RCVD; 264894810e82SEddie Wai if (old_state == EP_STATE_DISCONN_START) 264994810e82SEddie Wai wake_up_interruptible(&ep->ofld_wait); 265094810e82SEddie Wai else 2651cf4e6363SMichael Chan if (ep->conn) 2652cf4e6363SMichael Chan bnx2i_recovery_que_add_conn(ep->hba, ep->conn); 2653cf4e6363SMichael Chan } 2654cf4e6363SMichael Chan 2655cf4e6363SMichael Chan 2656939b82e5SMichael Chan static int bnx2i_send_nl_mesg(void *context, u32 msg_type, 2657cf4e6363SMichael Chan char *buf, u16 buflen) 2658cf4e6363SMichael Chan { 2659939b82e5SMichael Chan struct bnx2i_hba *hba = context; 2660939b82e5SMichael Chan int rc; 2661cf4e6363SMichael Chan 2662cf4e6363SMichael Chan if (!hba) 2663939b82e5SMichael Chan return -ENODEV; 2664cf4e6363SMichael Chan 2665939b82e5SMichael Chan rc = iscsi_offload_mesg(hba->shost, &bnx2i_iscsi_transport, 2666939b82e5SMichael Chan msg_type, buf, buflen); 2667939b82e5SMichael Chan if (rc) 2668cf4e6363SMichael Chan printk(KERN_ALERT "bnx2i: private nl message send error\n"); 2669cf4e6363SMichael Chan 2670939b82e5SMichael Chan return rc; 2671cf4e6363SMichael Chan } 2672cf4e6363SMichael Chan 2673cf4e6363SMichael Chan 2674dd3273c9SLee Jones /* 2675cf4e6363SMichael Chan * bnx2i_cnic_cb - global template of bnx2i - cnic driver interface structure 2676cf4e6363SMichael Chan * carrying callback function pointers 2677cf4e6363SMichael Chan */ 2678cf4e6363SMichael Chan struct cnic_ulp_ops bnx2i_cnic_cb = { 2679cf4e6363SMichael Chan .cnic_init = bnx2i_ulp_init, 2680cf4e6363SMichael Chan .cnic_exit = bnx2i_ulp_exit, 2681cf4e6363SMichael Chan .cnic_start = bnx2i_start, 2682cf4e6363SMichael Chan .cnic_stop = bnx2i_stop, 2683cf4e6363SMichael Chan .indicate_kcqes = bnx2i_indicate_kcqe, 2684cf4e6363SMichael Chan .indicate_netevent = bnx2i_indicate_netevent, 2685cf4e6363SMichael Chan .cm_connect_complete = bnx2i_cm_connect_cmpl, 2686cf4e6363SMichael Chan .cm_close_complete = bnx2i_cm_close_cmpl, 2687cf4e6363SMichael Chan .cm_abort_complete = bnx2i_cm_abort_cmpl, 2688cf4e6363SMichael Chan .cm_remote_close = bnx2i_cm_remote_close, 2689cf4e6363SMichael Chan .cm_remote_abort = bnx2i_cm_remote_abort, 2690cf4e6363SMichael Chan .iscsi_nl_send_msg = bnx2i_send_nl_mesg, 26912e499d3cSBarak Witkowski .cnic_get_stats = bnx2i_get_stats, 2692cf4e6363SMichael Chan .owner = THIS_MODULE 2693cf4e6363SMichael Chan }; 2694cf4e6363SMichael Chan 2695cf4e6363SMichael Chan 2696cf4e6363SMichael Chan /** 2697cf4e6363SMichael Chan * bnx2i_map_ep_dbell_regs - map connection doorbell registers 2698cf4e6363SMichael Chan * @ep: bnx2i endpoint 2699cf4e6363SMichael Chan * 2700cf4e6363SMichael Chan * maps connection's SQ and RQ doorbell registers, 5706/5708/5709 hosts these 2701cf4e6363SMichael Chan * register in BAR #0. Whereas in 57710 these register are accessed by 2702cf4e6363SMichael Chan * mapping BAR #1 2703cf4e6363SMichael Chan */ 2704cf4e6363SMichael Chan int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) 2705cf4e6363SMichael Chan { 2706cf4e6363SMichael Chan u32 cid_num; 2707cf4e6363SMichael Chan u32 reg_off; 2708cf4e6363SMichael Chan u32 first_l4l5; 2709cf4e6363SMichael Chan u32 ctx_sz; 2710cf4e6363SMichael Chan u32 config2; 2711cf4e6363SMichael Chan resource_size_t reg_base; 2712cf4e6363SMichael Chan 2713cf4e6363SMichael Chan cid_num = bnx2i_get_cid_num(ep); 2714cf4e6363SMichael Chan 2715cf4e6363SMichael Chan if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { 2716cf4e6363SMichael Chan reg_base = pci_resource_start(ep->hba->pcidev, 2717cf4e6363SMichael Chan BNX2X_DOORBELL_PCI_BAR); 2718f78afb35SMichael Chan reg_off = (1 << BNX2X_DB_SHIFT) * (cid_num & 0x1FFFF); 27194bdc0d67SChristoph Hellwig ep->qp.ctx_base = ioremap(reg_base + reg_off, 4); 2720aa154ea8SZhouyang Jia if (!ep->qp.ctx_base) 2721aa154ea8SZhouyang Jia return -ENOMEM; 2722cf4e6363SMichael Chan goto arm_cq; 2723cf4e6363SMichael Chan } 2724cf4e6363SMichael Chan 2725cf4e6363SMichael Chan if ((test_bit(BNX2I_NX2_DEV_5709, &ep->hba->cnic_dev_type)) && 2726cf4e6363SMichael Chan (ep->hba->mail_queue_access == BNX2I_MQ_BIN_MODE)) { 2727cf4e6363SMichael Chan config2 = REG_RD(ep->hba, BNX2_MQ_CONFIG2); 2728cf4e6363SMichael Chan first_l4l5 = config2 & BNX2_MQ_CONFIG2_FIRST_L4L5; 2729cf4e6363SMichael Chan ctx_sz = (config2 & BNX2_MQ_CONFIG2_CONT_SZ) >> 3; 2730cf4e6363SMichael Chan if (ctx_sz) 2731cf4e6363SMichael Chan reg_off = CTX_OFFSET + MAX_CID_CNT * MB_KERNEL_CTX_SIZE 273253203244SAnil Veerabhadrappa + BNX2I_570X_PAGE_SIZE_DEFAULT * 2733cf4e6363SMichael Chan (((cid_num - first_l4l5) / ctx_sz) + 256); 2734cf4e6363SMichael Chan else 2735cf4e6363SMichael Chan reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); 2736cf4e6363SMichael Chan } else 2737cf4e6363SMichael Chan /* 5709 device in normal node and 5706/5708 devices */ 2738cf4e6363SMichael Chan reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); 2739cf4e6363SMichael Chan 27404bdc0d67SChristoph Hellwig ep->qp.ctx_base = ioremap(ep->hba->reg_base + reg_off, 2741cf4e6363SMichael Chan MB_KERNEL_CTX_SIZE); 2742cf4e6363SMichael Chan if (!ep->qp.ctx_base) 2743cf4e6363SMichael Chan return -ENOMEM; 2744cf4e6363SMichael Chan 2745cf4e6363SMichael Chan arm_cq: 2746cf4e6363SMichael Chan bnx2i_arm_cq_event_coalescing(ep, CNIC_ARM_CQE); 2747cf4e6363SMichael Chan return 0; 2748cf4e6363SMichael Chan } 2749