1fc831825SYuval Mintz /* QLogic qed NIC Driver 2e8f1cb50SMintz, Yuval * Copyright (c) 2015-2017 QLogic Corporation 3fc831825SYuval Mintz * 4e8f1cb50SMintz, Yuval * This software is available to you under a choice of one of two 5e8f1cb50SMintz, Yuval * licenses. You may choose to be licensed under the terms of the GNU 6e8f1cb50SMintz, Yuval * General Public License (GPL) Version 2, available from the file 7e8f1cb50SMintz, Yuval * COPYING in the main directory of this source tree, or the 8e8f1cb50SMintz, Yuval * OpenIB.org BSD license below: 9e8f1cb50SMintz, Yuval * 10e8f1cb50SMintz, Yuval * Redistribution and use in source and binary forms, with or 11e8f1cb50SMintz, Yuval * without modification, are permitted provided that the following 12e8f1cb50SMintz, Yuval * conditions are met: 13e8f1cb50SMintz, Yuval * 14e8f1cb50SMintz, Yuval * - Redistributions of source code must retain the above 15e8f1cb50SMintz, Yuval * copyright notice, this list of conditions and the following 16e8f1cb50SMintz, Yuval * disclaimer. 17e8f1cb50SMintz, Yuval * 18e8f1cb50SMintz, Yuval * - Redistributions in binary form must reproduce the above 19e8f1cb50SMintz, Yuval * copyright notice, this list of conditions and the following 20e8f1cb50SMintz, Yuval * disclaimer in the documentation and /or other materials 21e8f1cb50SMintz, Yuval * provided with the distribution. 22e8f1cb50SMintz, Yuval * 23e8f1cb50SMintz, Yuval * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24e8f1cb50SMintz, Yuval * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25e8f1cb50SMintz, Yuval * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26e8f1cb50SMintz, Yuval * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27e8f1cb50SMintz, Yuval * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28e8f1cb50SMintz, Yuval * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29e8f1cb50SMintz, Yuval * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30e8f1cb50SMintz, Yuval * SOFTWARE. 31fc831825SYuval Mintz */ 32fc831825SYuval Mintz 33fc831825SYuval Mintz #include <linux/types.h> 34fc831825SYuval Mintz #include <asm/byteorder.h> 35fc831825SYuval Mintz #include <asm/param.h> 36fc831825SYuval Mintz #include <linux/delay.h> 37fc831825SYuval Mintz #include <linux/dma-mapping.h> 38fc831825SYuval Mintz #include <linux/etherdevice.h> 39fc831825SYuval Mintz #include <linux/interrupt.h> 40fc831825SYuval Mintz #include <linux/kernel.h> 41fc831825SYuval Mintz #include <linux/log2.h> 42fc831825SYuval Mintz #include <linux/module.h> 43fc831825SYuval Mintz #include <linux/pci.h> 44fc831825SYuval Mintz #include <linux/slab.h> 45fc831825SYuval Mintz #include <linux/stddef.h> 46fc831825SYuval Mintz #include <linux/string.h> 47fc831825SYuval Mintz #include <linux/version.h> 48fc831825SYuval Mintz #include <linux/workqueue.h> 49fc831825SYuval Mintz #include <linux/errno.h> 50fc831825SYuval Mintz #include <linux/list.h> 51fc831825SYuval Mintz #include <linux/spinlock.h> 52fc831825SYuval Mintz #include <linux/qed/qed_iscsi_if.h> 53fc831825SYuval Mintz #include "qed.h" 54fc831825SYuval Mintz #include "qed_cxt.h" 55fc831825SYuval Mintz #include "qed_dev_api.h" 56fc831825SYuval Mintz #include "qed_hsi.h" 57fc831825SYuval Mintz #include "qed_hw.h" 58fc831825SYuval Mintz #include "qed_int.h" 59fc831825SYuval Mintz #include "qed_iscsi.h" 60fc831825SYuval Mintz #include "qed_ll2.h" 61fc831825SYuval Mintz #include "qed_mcp.h" 62fc831825SYuval Mintz #include "qed_sp.h" 63fc831825SYuval Mintz #include "qed_sriov.h" 64fc831825SYuval Mintz #include "qed_reg_addr.h" 65fc831825SYuval Mintz 66fc831825SYuval Mintz struct qed_iscsi_conn { 67fc831825SYuval Mintz struct list_head list_entry; 68fc831825SYuval Mintz bool free_on_delete; 69fc831825SYuval Mintz 70fc831825SYuval Mintz u16 conn_id; 71fc831825SYuval Mintz u32 icid; 72fc831825SYuval Mintz u32 fw_cid; 73fc831825SYuval Mintz 74fc831825SYuval Mintz u8 layer_code; 75fc831825SYuval Mintz u8 offl_flags; 76fc831825SYuval Mintz u8 connect_mode; 77fc831825SYuval Mintz u32 initial_ack; 78fc831825SYuval Mintz dma_addr_t sq_pbl_addr; 79fc831825SYuval Mintz struct qed_chain r2tq; 80fc831825SYuval Mintz struct qed_chain xhq; 81fc831825SYuval Mintz struct qed_chain uhq; 82fc831825SYuval Mintz 83fc831825SYuval Mintz struct tcp_upload_params *tcp_upload_params_virt_addr; 84fc831825SYuval Mintz dma_addr_t tcp_upload_params_phys_addr; 85fc831825SYuval Mintz struct scsi_terminate_extra_params *queue_cnts_virt_addr; 86fc831825SYuval Mintz dma_addr_t queue_cnts_phys_addr; 87fc831825SYuval Mintz dma_addr_t syn_phy_addr; 88fc831825SYuval Mintz 89fc831825SYuval Mintz u16 syn_ip_payload_length; 90fc831825SYuval Mintz u8 local_mac[6]; 91fc831825SYuval Mintz u8 remote_mac[6]; 92fc831825SYuval Mintz u16 vlan_id; 93fc831825SYuval Mintz u8 tcp_flags; 94fc831825SYuval Mintz u8 ip_version; 95fc831825SYuval Mintz u32 remote_ip[4]; 96fc831825SYuval Mintz u32 local_ip[4]; 97fc831825SYuval Mintz u8 ka_max_probe_cnt; 98fc831825SYuval Mintz u8 dup_ack_theshold; 99fc831825SYuval Mintz u32 rcv_next; 100fc831825SYuval Mintz u32 snd_una; 101fc831825SYuval Mintz u32 snd_next; 102fc831825SYuval Mintz u32 snd_max; 103fc831825SYuval Mintz u32 snd_wnd; 104fc831825SYuval Mintz u32 rcv_wnd; 105fc831825SYuval Mintz u32 snd_wl1; 106fc831825SYuval Mintz u32 cwnd; 107fc831825SYuval Mintz u32 ss_thresh; 108fc831825SYuval Mintz u16 srtt; 109fc831825SYuval Mintz u16 rtt_var; 110fc831825SYuval Mintz u32 ts_time; 111fc831825SYuval Mintz u32 ts_recent; 112fc831825SYuval Mintz u32 ts_recent_age; 113fc831825SYuval Mintz u32 total_rt; 114fc831825SYuval Mintz u32 ka_timeout_delta; 115fc831825SYuval Mintz u32 rt_timeout_delta; 116fc831825SYuval Mintz u8 dup_ack_cnt; 117fc831825SYuval Mintz u8 snd_wnd_probe_cnt; 118fc831825SYuval Mintz u8 ka_probe_cnt; 119fc831825SYuval Mintz u8 rt_cnt; 120fc831825SYuval Mintz u32 flow_label; 121fc831825SYuval Mintz u32 ka_timeout; 122fc831825SYuval Mintz u32 ka_interval; 123fc831825SYuval Mintz u32 max_rt_time; 124fc831825SYuval Mintz u32 initial_rcv_wnd; 125fc831825SYuval Mintz u8 ttl; 126fc831825SYuval Mintz u8 tos_or_tc; 127fc831825SYuval Mintz u16 remote_port; 128fc831825SYuval Mintz u16 local_port; 129fc831825SYuval Mintz u16 mss; 130fc831825SYuval Mintz u8 snd_wnd_scale; 131fc831825SYuval Mintz u8 rcv_wnd_scale; 132fc831825SYuval Mintz u32 ts_ticks_per_second; 133fc831825SYuval Mintz u16 da_timeout_value; 134fc831825SYuval Mintz u8 ack_frequency; 135fc831825SYuval Mintz 136fc831825SYuval Mintz u8 update_flag; 137fc831825SYuval Mintz u8 default_cq; 138fc831825SYuval Mintz u32 max_seq_size; 139fc831825SYuval Mintz u32 max_recv_pdu_length; 140fc831825SYuval Mintz u32 max_send_pdu_length; 141fc831825SYuval Mintz u32 first_seq_length; 142fc831825SYuval Mintz u32 exp_stat_sn; 143fc831825SYuval Mintz u32 stat_sn; 144fc831825SYuval Mintz u16 physical_q0; 145fc831825SYuval Mintz u16 physical_q1; 146fc831825SYuval Mintz u8 abortive_dsconnect; 147fc831825SYuval Mintz }; 148fc831825SYuval Mintz 149fc831825SYuval Mintz static int 150fc831825SYuval Mintz qed_sp_iscsi_func_start(struct qed_hwfn *p_hwfn, 151fc831825SYuval Mintz enum spq_mode comp_mode, 152fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr, 153fc831825SYuval Mintz void *event_context, iscsi_event_cb_t async_event_cb) 154fc831825SYuval Mintz { 155fc831825SYuval Mintz struct iscsi_init_ramrod_params *p_ramrod = NULL; 156fc831825SYuval Mintz struct scsi_init_func_queues *p_queue = NULL; 157fc831825SYuval Mintz struct qed_iscsi_pf_params *p_params = NULL; 158fc831825SYuval Mintz struct iscsi_spe_func_init *p_init = NULL; 159fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 160fc831825SYuval Mintz struct qed_sp_init_data init_data; 161fc831825SYuval Mintz int rc = 0; 162fc831825SYuval Mintz u32 dval; 163fc831825SYuval Mintz u16 val; 164fc831825SYuval Mintz u8 i; 165fc831825SYuval Mintz 166fc831825SYuval Mintz /* Get SPQ entry */ 167fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 168fc831825SYuval Mintz init_data.cid = qed_spq_get_cid(p_hwfn); 169fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 170fc831825SYuval Mintz init_data.comp_mode = comp_mode; 171fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 172fc831825SYuval Mintz 173fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 174fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_INIT_FUNC, 175fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 176fc831825SYuval Mintz if (rc) 177fc831825SYuval Mintz return rc; 178fc831825SYuval Mintz 179fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_init; 180fc831825SYuval Mintz p_init = &p_ramrod->iscsi_init_spe; 181fc831825SYuval Mintz p_params = &p_hwfn->pf_params.iscsi_pf_params; 182fc831825SYuval Mintz p_queue = &p_init->q_params; 183fc831825SYuval Mintz 184fc831825SYuval Mintz SET_FIELD(p_init->hdr.flags, 185fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, ISCSI_SLOW_PATH_LAYER_CODE); 186fc831825SYuval Mintz p_init->hdr.op_code = ISCSI_RAMROD_CMD_ID_INIT_FUNC; 187fc831825SYuval Mintz 188fc831825SYuval Mintz val = p_params->half_way_close_timeout; 189fc831825SYuval Mintz p_init->half_way_close_timeout = cpu_to_le16(val); 190fc831825SYuval Mintz p_init->num_sq_pages_in_ring = p_params->num_sq_pages_in_ring; 191fc831825SYuval Mintz p_init->num_r2tq_pages_in_ring = p_params->num_r2tq_pages_in_ring; 192fc831825SYuval Mintz p_init->num_uhq_pages_in_ring = p_params->num_uhq_pages_in_ring; 193fc831825SYuval Mintz p_init->func_params.log_page_size = p_params->log_page_size; 194fc831825SYuval Mintz val = p_params->num_tasks; 195fc831825SYuval Mintz p_init->func_params.num_tasks = cpu_to_le16(val); 196fc831825SYuval Mintz p_init->debug_mode.flags = p_params->debug_mode; 197fc831825SYuval Mintz 198fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->glbl_q_params_addr, 199fc831825SYuval Mintz p_params->glbl_q_params_addr); 200fc831825SYuval Mintz 201fc831825SYuval Mintz val = p_params->cq_num_entries; 202fc831825SYuval Mintz p_queue->cq_num_entries = cpu_to_le16(val); 203fc831825SYuval Mintz val = p_params->cmdq_num_entries; 204fc831825SYuval Mintz p_queue->cmdq_num_entries = cpu_to_le16(val); 205fc831825SYuval Mintz p_queue->num_queues = p_params->num_queues; 206fc831825SYuval Mintz dval = (u8)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS]; 207fc831825SYuval Mintz p_queue->queue_relative_offset = (u8)dval; 208fc831825SYuval Mintz p_queue->cq_sb_pi = p_params->gl_rq_pi; 209fc831825SYuval Mintz p_queue->cmdq_sb_pi = p_params->gl_cmd_pi; 210fc831825SYuval Mintz 211fc831825SYuval Mintz for (i = 0; i < p_params->num_queues; i++) { 212fc831825SYuval Mintz val = p_hwfn->sbs_info[i]->igu_sb_id; 213fc831825SYuval Mintz p_queue->cq_cmdq_sb_num_arr[i] = cpu_to_le16(val); 214fc831825SYuval Mintz } 215fc831825SYuval Mintz 216fc831825SYuval Mintz p_queue->bdq_resource_id = ISCSI_BDQ_ID(p_hwfn->port_id); 217fc831825SYuval Mintz 218fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_RQ], 219fc831825SYuval Mintz p_params->bdq_pbl_base_addr[BDQ_ID_RQ]); 220fc831825SYuval Mintz p_queue->bdq_pbl_num_entries[BDQ_ID_RQ] = 221fc831825SYuval Mintz p_params->bdq_pbl_num_entries[BDQ_ID_RQ]; 222fc831825SYuval Mintz val = p_params->bdq_xoff_threshold[BDQ_ID_RQ]; 223fc831825SYuval Mintz p_queue->bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(val); 224fc831825SYuval Mintz val = p_params->bdq_xon_threshold[BDQ_ID_RQ]; 225fc831825SYuval Mintz p_queue->bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(val); 226fc831825SYuval Mintz 227fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_IMM_DATA], 228fc831825SYuval Mintz p_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]); 229fc831825SYuval Mintz p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA] = 230fc831825SYuval Mintz p_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA]; 231fc831825SYuval Mintz val = p_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA]; 232fc831825SYuval Mintz p_queue->bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val); 233fc831825SYuval Mintz val = p_params->bdq_xon_threshold[BDQ_ID_IMM_DATA]; 234fc831825SYuval Mintz p_queue->bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val); 235fc831825SYuval Mintz val = p_params->rq_buffer_size; 236fc831825SYuval Mintz p_queue->rq_buffer_size = cpu_to_le16(val); 237fc831825SYuval Mintz if (p_params->is_target) { 238fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 239fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1); 240fc831825SYuval Mintz if (p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA]) 241fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 242fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1); 243fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 244fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1); 245fc831825SYuval Mintz } else { 246fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 247fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1); 248fc831825SYuval Mintz } 249fc831825SYuval Mintz p_ramrod->tcp_init.two_msl_timer = cpu_to_le32(p_params->two_msl_timer); 250fc831825SYuval Mintz val = p_params->tx_sws_timer; 251fc831825SYuval Mintz p_ramrod->tcp_init.tx_sws_timer = cpu_to_le16(val); 252fc831825SYuval Mintz p_ramrod->tcp_init.maxfinrt = p_params->max_fin_rt; 253fc831825SYuval Mintz 254fc831825SYuval Mintz p_hwfn->p_iscsi_info->event_context = event_context; 255fc831825SYuval Mintz p_hwfn->p_iscsi_info->event_cb = async_event_cb; 256fc831825SYuval Mintz 257fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 258fc831825SYuval Mintz } 259fc831825SYuval Mintz 260fc831825SYuval Mintz static int qed_sp_iscsi_conn_offload(struct qed_hwfn *p_hwfn, 261fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 262fc831825SYuval Mintz enum spq_mode comp_mode, 263fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 264fc831825SYuval Mintz { 265fc831825SYuval Mintz struct iscsi_spe_conn_offload *p_ramrod = NULL; 266fc831825SYuval Mintz struct tcp_offload_params_opt2 *p_tcp2 = NULL; 267fc831825SYuval Mintz struct tcp_offload_params *p_tcp = NULL; 268fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 269fc831825SYuval Mintz struct qed_sp_init_data init_data; 270fc831825SYuval Mintz union qed_qm_pq_params pq_params; 271fc831825SYuval Mintz u16 pq0_id = 0, pq1_id = 0; 272fc831825SYuval Mintz dma_addr_t r2tq_pbl_addr; 273fc831825SYuval Mintz dma_addr_t xhq_pbl_addr; 274fc831825SYuval Mintz dma_addr_t uhq_pbl_addr; 275fc831825SYuval Mintz int rc = 0; 276fc831825SYuval Mintz u32 dval; 277fc831825SYuval Mintz u16 wval; 278fc831825SYuval Mintz u8 i; 279fc831825SYuval Mintz u16 *p; 280fc831825SYuval Mintz 281fc831825SYuval Mintz /* Get SPQ entry */ 282fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 283fc831825SYuval Mintz init_data.cid = p_conn->icid; 284fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 285fc831825SYuval Mintz init_data.comp_mode = comp_mode; 286fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 287fc831825SYuval Mintz 288fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 289fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN, 290fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 291fc831825SYuval Mintz if (rc) 292fc831825SYuval Mintz return rc; 293fc831825SYuval Mintz 294fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_offload; 295fc831825SYuval Mintz 296fc831825SYuval Mintz /* Transmission PQ is the first of the PF */ 297fc831825SYuval Mintz memset(&pq_params, 0, sizeof(pq_params)); 298fc831825SYuval Mintz pq0_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params); 299fc831825SYuval Mintz p_conn->physical_q0 = cpu_to_le16(pq0_id); 300fc831825SYuval Mintz p_ramrod->iscsi.physical_q0 = cpu_to_le16(pq0_id); 301fc831825SYuval Mintz 302fc831825SYuval Mintz /* iSCSI Pure-ACK PQ */ 303fc831825SYuval Mintz pq_params.iscsi.q_idx = 1; 304fc831825SYuval Mintz pq1_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params); 305fc831825SYuval Mintz p_conn->physical_q1 = cpu_to_le16(pq1_id); 306fc831825SYuval Mintz p_ramrod->iscsi.physical_q1 = cpu_to_le16(pq1_id); 307fc831825SYuval Mintz 308fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN; 309fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, 310fc831825SYuval Mintz p_conn->layer_code); 311fc831825SYuval Mintz 312fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 313fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 314fc831825SYuval Mintz 315fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.sq_pbl_addr, p_conn->sq_pbl_addr); 316fc831825SYuval Mintz 317fc831825SYuval Mintz r2tq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->r2tq); 318fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.r2tq_pbl_addr, r2tq_pbl_addr); 319fc831825SYuval Mintz 320fc831825SYuval Mintz xhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->xhq); 321fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.xhq_pbl_addr, xhq_pbl_addr); 322fc831825SYuval Mintz 323fc831825SYuval Mintz uhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->uhq); 324fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.uhq_pbl_addr, uhq_pbl_addr); 325fc831825SYuval Mintz 326fc831825SYuval Mintz p_ramrod->iscsi.initial_ack = cpu_to_le32(p_conn->initial_ack); 327fc831825SYuval Mintz p_ramrod->iscsi.flags = p_conn->offl_flags; 328fc831825SYuval Mintz p_ramrod->iscsi.default_cq = p_conn->default_cq; 329fc831825SYuval Mintz p_ramrod->iscsi.stat_sn = cpu_to_le32(p_conn->stat_sn); 330fc831825SYuval Mintz 331fc831825SYuval Mintz if (!GET_FIELD(p_ramrod->iscsi.flags, 332fc831825SYuval Mintz ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B)) { 333fc831825SYuval Mintz p_tcp = &p_ramrod->tcp; 334fc831825SYuval Mintz 335fc831825SYuval Mintz p = (u16 *)p_conn->local_mac; 336fc831825SYuval Mintz p_tcp->local_mac_addr_hi = swab16(get_unaligned(p)); 337fc831825SYuval Mintz p_tcp->local_mac_addr_mid = swab16(get_unaligned(p + 1)); 338fc831825SYuval Mintz p_tcp->local_mac_addr_lo = swab16(get_unaligned(p + 2)); 339fc831825SYuval Mintz 340fc831825SYuval Mintz p = (u16 *)p_conn->remote_mac; 341fc831825SYuval Mintz p_tcp->remote_mac_addr_hi = swab16(get_unaligned(p)); 342fc831825SYuval Mintz p_tcp->remote_mac_addr_mid = swab16(get_unaligned(p + 1)); 343fc831825SYuval Mintz p_tcp->remote_mac_addr_lo = swab16(get_unaligned(p + 2)); 344fc831825SYuval Mintz 345fc831825SYuval Mintz p_tcp->vlan_id = cpu_to_le16(p_conn->vlan_id); 346fc831825SYuval Mintz 347fc831825SYuval Mintz p_tcp->flags = p_conn->tcp_flags; 348fc831825SYuval Mintz p_tcp->ip_version = p_conn->ip_version; 349fc831825SYuval Mintz for (i = 0; i < 4; i++) { 350fc831825SYuval Mintz dval = p_conn->remote_ip[i]; 351fc831825SYuval Mintz p_tcp->remote_ip[i] = cpu_to_le32(dval); 352fc831825SYuval Mintz dval = p_conn->local_ip[i]; 353fc831825SYuval Mintz p_tcp->local_ip[i] = cpu_to_le32(dval); 354fc831825SYuval Mintz } 355fc831825SYuval Mintz p_tcp->ka_max_probe_cnt = p_conn->ka_max_probe_cnt; 356fc831825SYuval Mintz p_tcp->dup_ack_theshold = p_conn->dup_ack_theshold; 357fc831825SYuval Mintz 358fc831825SYuval Mintz p_tcp->rcv_next = cpu_to_le32(p_conn->rcv_next); 359fc831825SYuval Mintz p_tcp->snd_una = cpu_to_le32(p_conn->snd_una); 360fc831825SYuval Mintz p_tcp->snd_next = cpu_to_le32(p_conn->snd_next); 361fc831825SYuval Mintz p_tcp->snd_max = cpu_to_le32(p_conn->snd_max); 362fc831825SYuval Mintz p_tcp->snd_wnd = cpu_to_le32(p_conn->snd_wnd); 363fc831825SYuval Mintz p_tcp->rcv_wnd = cpu_to_le32(p_conn->rcv_wnd); 364fc831825SYuval Mintz p_tcp->snd_wl1 = cpu_to_le32(p_conn->snd_wl1); 365fc831825SYuval Mintz p_tcp->cwnd = cpu_to_le32(p_conn->cwnd); 366fc831825SYuval Mintz p_tcp->ss_thresh = cpu_to_le32(p_conn->ss_thresh); 367fc831825SYuval Mintz p_tcp->srtt = cpu_to_le16(p_conn->srtt); 368fc831825SYuval Mintz p_tcp->rtt_var = cpu_to_le16(p_conn->rtt_var); 369fc831825SYuval Mintz p_tcp->ts_time = cpu_to_le32(p_conn->ts_time); 370fc831825SYuval Mintz p_tcp->ts_recent = cpu_to_le32(p_conn->ts_recent); 371fc831825SYuval Mintz p_tcp->ts_recent_age = cpu_to_le32(p_conn->ts_recent_age); 372fc831825SYuval Mintz p_tcp->total_rt = cpu_to_le32(p_conn->total_rt); 373fc831825SYuval Mintz dval = p_conn->ka_timeout_delta; 374fc831825SYuval Mintz p_tcp->ka_timeout_delta = cpu_to_le32(dval); 375fc831825SYuval Mintz dval = p_conn->rt_timeout_delta; 376fc831825SYuval Mintz p_tcp->rt_timeout_delta = cpu_to_le32(dval); 377fc831825SYuval Mintz p_tcp->dup_ack_cnt = p_conn->dup_ack_cnt; 378fc831825SYuval Mintz p_tcp->snd_wnd_probe_cnt = p_conn->snd_wnd_probe_cnt; 379fc831825SYuval Mintz p_tcp->ka_probe_cnt = p_conn->ka_probe_cnt; 380fc831825SYuval Mintz p_tcp->rt_cnt = p_conn->rt_cnt; 381fc831825SYuval Mintz p_tcp->flow_label = cpu_to_le32(p_conn->flow_label); 382fc831825SYuval Mintz p_tcp->ka_timeout = cpu_to_le32(p_conn->ka_timeout); 383fc831825SYuval Mintz p_tcp->ka_interval = cpu_to_le32(p_conn->ka_interval); 384fc831825SYuval Mintz p_tcp->max_rt_time = cpu_to_le32(p_conn->max_rt_time); 385fc831825SYuval Mintz dval = p_conn->initial_rcv_wnd; 386fc831825SYuval Mintz p_tcp->initial_rcv_wnd = cpu_to_le32(dval); 387fc831825SYuval Mintz p_tcp->ttl = p_conn->ttl; 388fc831825SYuval Mintz p_tcp->tos_or_tc = p_conn->tos_or_tc; 389fc831825SYuval Mintz p_tcp->remote_port = cpu_to_le16(p_conn->remote_port); 390fc831825SYuval Mintz p_tcp->local_port = cpu_to_le16(p_conn->local_port); 391fc831825SYuval Mintz p_tcp->mss = cpu_to_le16(p_conn->mss); 392fc831825SYuval Mintz p_tcp->snd_wnd_scale = p_conn->snd_wnd_scale; 393fc831825SYuval Mintz p_tcp->rcv_wnd_scale = p_conn->rcv_wnd_scale; 394fc831825SYuval Mintz dval = p_conn->ts_ticks_per_second; 395fc831825SYuval Mintz p_tcp->ts_ticks_per_second = cpu_to_le32(dval); 396fc831825SYuval Mintz wval = p_conn->da_timeout_value; 397fc831825SYuval Mintz p_tcp->da_timeout_value = cpu_to_le16(wval); 398fc831825SYuval Mintz p_tcp->ack_frequency = p_conn->ack_frequency; 399fc831825SYuval Mintz p_tcp->connect_mode = p_conn->connect_mode; 400fc831825SYuval Mintz } else { 401fc831825SYuval Mintz p_tcp2 = 402fc831825SYuval Mintz &((struct iscsi_spe_conn_offload_option2 *)p_ramrod)->tcp; 403fc831825SYuval Mintz 404fc831825SYuval Mintz p = (u16 *)p_conn->local_mac; 405fc831825SYuval Mintz p_tcp2->local_mac_addr_hi = swab16(get_unaligned(p)); 406fc831825SYuval Mintz p_tcp2->local_mac_addr_mid = swab16(get_unaligned(p + 1)); 407fc831825SYuval Mintz p_tcp2->local_mac_addr_lo = swab16(get_unaligned(p + 2)); 408fc831825SYuval Mintz 409fc831825SYuval Mintz p = (u16 *)p_conn->remote_mac; 410fc831825SYuval Mintz p_tcp2->remote_mac_addr_hi = swab16(get_unaligned(p)); 411fc831825SYuval Mintz p_tcp2->remote_mac_addr_mid = swab16(get_unaligned(p + 1)); 412fc831825SYuval Mintz p_tcp2->remote_mac_addr_lo = swab16(get_unaligned(p + 2)); 413fc831825SYuval Mintz 414fc831825SYuval Mintz p_tcp2->vlan_id = cpu_to_le16(p_conn->vlan_id); 415fc831825SYuval Mintz p_tcp2->flags = p_conn->tcp_flags; 416fc831825SYuval Mintz 417fc831825SYuval Mintz p_tcp2->ip_version = p_conn->ip_version; 418fc831825SYuval Mintz for (i = 0; i < 4; i++) { 419fc831825SYuval Mintz dval = p_conn->remote_ip[i]; 420fc831825SYuval Mintz p_tcp2->remote_ip[i] = cpu_to_le32(dval); 421fc831825SYuval Mintz dval = p_conn->local_ip[i]; 422fc831825SYuval Mintz p_tcp2->local_ip[i] = cpu_to_le32(dval); 423fc831825SYuval Mintz } 424fc831825SYuval Mintz 425fc831825SYuval Mintz p_tcp2->flow_label = cpu_to_le32(p_conn->flow_label); 426fc831825SYuval Mintz p_tcp2->ttl = p_conn->ttl; 427fc831825SYuval Mintz p_tcp2->tos_or_tc = p_conn->tos_or_tc; 428fc831825SYuval Mintz p_tcp2->remote_port = cpu_to_le16(p_conn->remote_port); 429fc831825SYuval Mintz p_tcp2->local_port = cpu_to_le16(p_conn->local_port); 430fc831825SYuval Mintz p_tcp2->mss = cpu_to_le16(p_conn->mss); 431fc831825SYuval Mintz p_tcp2->rcv_wnd_scale = p_conn->rcv_wnd_scale; 432fc831825SYuval Mintz p_tcp2->connect_mode = p_conn->connect_mode; 433fc831825SYuval Mintz wval = p_conn->syn_ip_payload_length; 434fc831825SYuval Mintz p_tcp2->syn_ip_payload_length = cpu_to_le16(wval); 435fc831825SYuval Mintz p_tcp2->syn_phy_addr_lo = DMA_LO_LE(p_conn->syn_phy_addr); 436fc831825SYuval Mintz p_tcp2->syn_phy_addr_hi = DMA_HI_LE(p_conn->syn_phy_addr); 437fc831825SYuval Mintz } 438fc831825SYuval Mintz 439fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 440fc831825SYuval Mintz } 441fc831825SYuval Mintz 442fc831825SYuval Mintz static int qed_sp_iscsi_conn_update(struct qed_hwfn *p_hwfn, 443fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 444fc831825SYuval Mintz enum spq_mode comp_mode, 445fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 446fc831825SYuval Mintz { 447fc831825SYuval Mintz struct iscsi_conn_update_ramrod_params *p_ramrod = NULL; 448fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 449fc831825SYuval Mintz struct qed_sp_init_data init_data; 450fc831825SYuval Mintz int rc = -EINVAL; 451fc831825SYuval Mintz u32 dval; 452fc831825SYuval Mintz 453fc831825SYuval Mintz /* Get SPQ entry */ 454fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 455fc831825SYuval Mintz init_data.cid = p_conn->icid; 456fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 457fc831825SYuval Mintz init_data.comp_mode = comp_mode; 458fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 459fc831825SYuval Mintz 460fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 461fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_UPDATE_CONN, 462fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 463fc831825SYuval Mintz if (rc) 464fc831825SYuval Mintz return rc; 465fc831825SYuval Mintz 466fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_update; 467fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_UPDATE_CONN; 468fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, 469fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 470fc831825SYuval Mintz 471fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 472fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 473fc831825SYuval Mintz p_ramrod->flags = p_conn->update_flag; 474fc831825SYuval Mintz p_ramrod->max_seq_size = cpu_to_le32(p_conn->max_seq_size); 475fc831825SYuval Mintz dval = p_conn->max_recv_pdu_length; 476fc831825SYuval Mintz p_ramrod->max_recv_pdu_length = cpu_to_le32(dval); 477fc831825SYuval Mintz dval = p_conn->max_send_pdu_length; 478fc831825SYuval Mintz p_ramrod->max_send_pdu_length = cpu_to_le32(dval); 479fc831825SYuval Mintz dval = p_conn->first_seq_length; 480fc831825SYuval Mintz p_ramrod->first_seq_length = cpu_to_le32(dval); 481fc831825SYuval Mintz p_ramrod->exp_stat_sn = cpu_to_le32(p_conn->exp_stat_sn); 482fc831825SYuval Mintz 483fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 484fc831825SYuval Mintz } 485fc831825SYuval Mintz 486fc831825SYuval Mintz static int qed_sp_iscsi_conn_terminate(struct qed_hwfn *p_hwfn, 487fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 488fc831825SYuval Mintz enum spq_mode comp_mode, 489fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 490fc831825SYuval Mintz { 491fc831825SYuval Mintz struct iscsi_spe_conn_termination *p_ramrod = NULL; 492fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 493fc831825SYuval Mintz struct qed_sp_init_data init_data; 494fc831825SYuval Mintz int rc = -EINVAL; 495fc831825SYuval Mintz 496fc831825SYuval Mintz /* Get SPQ entry */ 497fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 498fc831825SYuval Mintz init_data.cid = p_conn->icid; 499fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 500fc831825SYuval Mintz init_data.comp_mode = comp_mode; 501fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 502fc831825SYuval Mintz 503fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 504fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_TERMINATION_CONN, 505fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 506fc831825SYuval Mintz if (rc) 507fc831825SYuval Mintz return rc; 508fc831825SYuval Mintz 509fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_terminate; 510fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_TERMINATION_CONN; 511fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, 512fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 513fc831825SYuval Mintz 514fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 515fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 516fc831825SYuval Mintz p_ramrod->abortive = p_conn->abortive_dsconnect; 517fc831825SYuval Mintz 518fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->query_params_addr, 519fc831825SYuval Mintz p_conn->tcp_upload_params_phys_addr); 520fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->queue_cnts_addr, p_conn->queue_cnts_phys_addr); 521fc831825SYuval Mintz 522fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 523fc831825SYuval Mintz } 524fc831825SYuval Mintz 525fc831825SYuval Mintz static int qed_sp_iscsi_conn_clear_sq(struct qed_hwfn *p_hwfn, 526fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 527fc831825SYuval Mintz enum spq_mode comp_mode, 528fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 529fc831825SYuval Mintz { 530fc831825SYuval Mintz struct iscsi_slow_path_hdr *p_ramrod = NULL; 531fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 532fc831825SYuval Mintz struct qed_sp_init_data init_data; 533fc831825SYuval Mintz int rc = -EINVAL; 534fc831825SYuval Mintz 535fc831825SYuval Mintz /* Get SPQ entry */ 536fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 537fc831825SYuval Mintz init_data.cid = p_conn->icid; 538fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 539fc831825SYuval Mintz init_data.comp_mode = comp_mode; 540fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 541fc831825SYuval Mintz 542fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 543fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_CLEAR_SQ, 544fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 545fc831825SYuval Mintz if (rc) 546fc831825SYuval Mintz return rc; 547fc831825SYuval Mintz 548fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_empty; 549fc831825SYuval Mintz p_ramrod->op_code = ISCSI_RAMROD_CMD_ID_CLEAR_SQ; 550fc831825SYuval Mintz SET_FIELD(p_ramrod->flags, 551fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 552fc831825SYuval Mintz 553fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 554fc831825SYuval Mintz } 555fc831825SYuval Mintz 556fc831825SYuval Mintz static int qed_sp_iscsi_func_stop(struct qed_hwfn *p_hwfn, 557fc831825SYuval Mintz enum spq_mode comp_mode, 558fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 559fc831825SYuval Mintz { 560fc831825SYuval Mintz struct iscsi_spe_func_dstry *p_ramrod = NULL; 561fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 562fc831825SYuval Mintz struct qed_sp_init_data init_data; 563fc831825SYuval Mintz int rc = 0; 564fc831825SYuval Mintz 565fc831825SYuval Mintz /* Get SPQ entry */ 566fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 567fc831825SYuval Mintz init_data.cid = qed_spq_get_cid(p_hwfn); 568fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 569fc831825SYuval Mintz init_data.comp_mode = comp_mode; 570fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 571fc831825SYuval Mintz 572fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 573fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_DESTROY_FUNC, 574fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 575fc831825SYuval Mintz if (rc) 576fc831825SYuval Mintz return rc; 577fc831825SYuval Mintz 578fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_destroy; 579fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_DESTROY_FUNC; 580fc831825SYuval Mintz 581fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 582fc831825SYuval Mintz } 583fc831825SYuval Mintz 584fc831825SYuval Mintz static void __iomem *qed_iscsi_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid) 585fc831825SYuval Mintz { 586fc831825SYuval Mintz return (u8 __iomem *)p_hwfn->doorbells + 587fc831825SYuval Mintz qed_db_addr(cid, DQ_DEMS_LEGACY); 588fc831825SYuval Mintz } 589fc831825SYuval Mintz 590fc831825SYuval Mintz static void __iomem *qed_iscsi_get_primary_bdq_prod(struct qed_hwfn *p_hwfn, 591fc831825SYuval Mintz u8 bdq_id) 592fc831825SYuval Mintz { 593fc831825SYuval Mintz u8 bdq_function_id = ISCSI_BDQ_ID(p_hwfn->port_id); 594fc831825SYuval Mintz 595fc831825SYuval Mintz return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_MSDM_RAM + 596fc831825SYuval Mintz MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, 597fc831825SYuval Mintz bdq_id); 598fc831825SYuval Mintz } 599fc831825SYuval Mintz 600fc831825SYuval Mintz static void __iomem *qed_iscsi_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn, 601fc831825SYuval Mintz u8 bdq_id) 602fc831825SYuval Mintz { 603fc831825SYuval Mintz u8 bdq_function_id = ISCSI_BDQ_ID(p_hwfn->port_id); 604fc831825SYuval Mintz 605fc831825SYuval Mintz return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_TSDM_RAM + 606fc831825SYuval Mintz TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, 607fc831825SYuval Mintz bdq_id); 608fc831825SYuval Mintz } 609fc831825SYuval Mintz 610fc831825SYuval Mintz static int qed_iscsi_setup_connection(struct qed_hwfn *p_hwfn, 611fc831825SYuval Mintz struct qed_iscsi_conn *p_conn) 612fc831825SYuval Mintz { 613fc831825SYuval Mintz if (!p_conn->queue_cnts_virt_addr) 614fc831825SYuval Mintz goto nomem; 615fc831825SYuval Mintz memset(p_conn->queue_cnts_virt_addr, 0, 616fc831825SYuval Mintz sizeof(*p_conn->queue_cnts_virt_addr)); 617fc831825SYuval Mintz 618fc831825SYuval Mintz if (!p_conn->tcp_upload_params_virt_addr) 619fc831825SYuval Mintz goto nomem; 620fc831825SYuval Mintz memset(p_conn->tcp_upload_params_virt_addr, 0, 621fc831825SYuval Mintz sizeof(*p_conn->tcp_upload_params_virt_addr)); 622fc831825SYuval Mintz 623fc831825SYuval Mintz if (!p_conn->r2tq.p_virt_addr) 624fc831825SYuval Mintz goto nomem; 625fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->r2tq); 626fc831825SYuval Mintz 627fc831825SYuval Mintz if (!p_conn->uhq.p_virt_addr) 628fc831825SYuval Mintz goto nomem; 629fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->uhq); 630fc831825SYuval Mintz 631fc831825SYuval Mintz if (!p_conn->xhq.p_virt_addr) 632fc831825SYuval Mintz goto nomem; 633fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->xhq); 634fc831825SYuval Mintz 635fc831825SYuval Mintz return 0; 636fc831825SYuval Mintz nomem: 637fc831825SYuval Mintz return -ENOMEM; 638fc831825SYuval Mintz } 639fc831825SYuval Mintz 640fc831825SYuval Mintz static int qed_iscsi_allocate_connection(struct qed_hwfn *p_hwfn, 641fc831825SYuval Mintz struct qed_iscsi_conn **p_out_conn) 642fc831825SYuval Mintz { 643fc831825SYuval Mintz u16 uhq_num_elements = 0, xhq_num_elements = 0, r2tq_num_elements = 0; 644fc831825SYuval Mintz struct scsi_terminate_extra_params *p_q_cnts = NULL; 645fc831825SYuval Mintz struct qed_iscsi_pf_params *p_params = NULL; 646fc831825SYuval Mintz struct tcp_upload_params *p_tcp = NULL; 647fc831825SYuval Mintz struct qed_iscsi_conn *p_conn = NULL; 648fc831825SYuval Mintz int rc = 0; 649fc831825SYuval Mintz 650fc831825SYuval Mintz /* Try finding a free connection that can be used */ 651fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 652fc831825SYuval Mintz if (!list_empty(&p_hwfn->p_iscsi_info->free_list)) 653fc831825SYuval Mintz p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list, 654fc831825SYuval Mintz struct qed_iscsi_conn, list_entry); 655fc831825SYuval Mintz if (p_conn) { 656fc831825SYuval Mintz list_del(&p_conn->list_entry); 657fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 658fc831825SYuval Mintz *p_out_conn = p_conn; 659fc831825SYuval Mintz return 0; 660fc831825SYuval Mintz } 661fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 662fc831825SYuval Mintz 663fc831825SYuval Mintz /* Need to allocate a new connection */ 664fc831825SYuval Mintz p_params = &p_hwfn->pf_params.iscsi_pf_params; 665fc831825SYuval Mintz 666fc831825SYuval Mintz p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL); 667fc831825SYuval Mintz if (!p_conn) 668fc831825SYuval Mintz return -ENOMEM; 669fc831825SYuval Mintz 670fc831825SYuval Mintz p_q_cnts = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 671fc831825SYuval Mintz sizeof(*p_q_cnts), 672fc831825SYuval Mintz &p_conn->queue_cnts_phys_addr, 673fc831825SYuval Mintz GFP_KERNEL); 674fc831825SYuval Mintz if (!p_q_cnts) 675fc831825SYuval Mintz goto nomem_queue_cnts_param; 676fc831825SYuval Mintz p_conn->queue_cnts_virt_addr = p_q_cnts; 677fc831825SYuval Mintz 678fc831825SYuval Mintz p_tcp = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 679fc831825SYuval Mintz sizeof(*p_tcp), 680fc831825SYuval Mintz &p_conn->tcp_upload_params_phys_addr, 681fc831825SYuval Mintz GFP_KERNEL); 682fc831825SYuval Mintz if (!p_tcp) 683fc831825SYuval Mintz goto nomem_upload_param; 684fc831825SYuval Mintz p_conn->tcp_upload_params_virt_addr = p_tcp; 685fc831825SYuval Mintz 686fc831825SYuval Mintz r2tq_num_elements = p_params->num_r2tq_pages_in_ring * 687fc831825SYuval Mintz QED_CHAIN_PAGE_SIZE / 0x80; 688fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 689fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 690fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 691fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 692fc831825SYuval Mintz r2tq_num_elements, 0x80, &p_conn->r2tq); 693fc831825SYuval Mintz if (rc) 694fc831825SYuval Mintz goto nomem_r2tq; 695fc831825SYuval Mintz 696fc831825SYuval Mintz uhq_num_elements = p_params->num_uhq_pages_in_ring * 697fc831825SYuval Mintz QED_CHAIN_PAGE_SIZE / sizeof(struct iscsi_uhqe); 698fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 699fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 700fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 701fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 702fc831825SYuval Mintz uhq_num_elements, 703fc831825SYuval Mintz sizeof(struct iscsi_uhqe), &p_conn->uhq); 704fc831825SYuval Mintz if (rc) 705fc831825SYuval Mintz goto nomem_uhq; 706fc831825SYuval Mintz 707fc831825SYuval Mintz xhq_num_elements = uhq_num_elements; 708fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 709fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 710fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 711fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 712fc831825SYuval Mintz xhq_num_elements, 713fc831825SYuval Mintz sizeof(struct iscsi_xhqe), &p_conn->xhq); 714fc831825SYuval Mintz if (rc) 715fc831825SYuval Mintz goto nomem; 716fc831825SYuval Mintz 717fc831825SYuval Mintz p_conn->free_on_delete = true; 718fc831825SYuval Mintz *p_out_conn = p_conn; 719fc831825SYuval Mintz return 0; 720fc831825SYuval Mintz 721fc831825SYuval Mintz nomem: 722fc831825SYuval Mintz qed_chain_free(p_hwfn->cdev, &p_conn->uhq); 723fc831825SYuval Mintz nomem_uhq: 724fc831825SYuval Mintz qed_chain_free(p_hwfn->cdev, &p_conn->r2tq); 725fc831825SYuval Mintz nomem_r2tq: 726fc831825SYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 727fc831825SYuval Mintz sizeof(struct tcp_upload_params), 728fc831825SYuval Mintz p_conn->tcp_upload_params_virt_addr, 729fc831825SYuval Mintz p_conn->tcp_upload_params_phys_addr); 730fc831825SYuval Mintz nomem_upload_param: 731fc831825SYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 732fc831825SYuval Mintz sizeof(struct scsi_terminate_extra_params), 733fc831825SYuval Mintz p_conn->queue_cnts_virt_addr, 734fc831825SYuval Mintz p_conn->queue_cnts_phys_addr); 735fc831825SYuval Mintz nomem_queue_cnts_param: 736fc831825SYuval Mintz kfree(p_conn); 737fc831825SYuval Mintz 738fc831825SYuval Mintz return -ENOMEM; 739fc831825SYuval Mintz } 740fc831825SYuval Mintz 741fc831825SYuval Mintz static int qed_iscsi_acquire_connection(struct qed_hwfn *p_hwfn, 742fc831825SYuval Mintz struct qed_iscsi_conn *p_in_conn, 743fc831825SYuval Mintz struct qed_iscsi_conn **p_out_conn) 744fc831825SYuval Mintz { 745fc831825SYuval Mintz struct qed_iscsi_conn *p_conn = NULL; 746fc831825SYuval Mintz int rc = 0; 747fc831825SYuval Mintz u32 icid; 748fc831825SYuval Mintz 749fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 750fc831825SYuval Mintz rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_ISCSI, &icid); 751fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 752fc831825SYuval Mintz if (rc) 753fc831825SYuval Mintz return rc; 754fc831825SYuval Mintz 755fc831825SYuval Mintz /* Use input connection or allocate a new one */ 756fc831825SYuval Mintz if (p_in_conn) 757fc831825SYuval Mintz p_conn = p_in_conn; 758fc831825SYuval Mintz else 759fc831825SYuval Mintz rc = qed_iscsi_allocate_connection(p_hwfn, &p_conn); 760fc831825SYuval Mintz 761fc831825SYuval Mintz if (!rc) 762fc831825SYuval Mintz rc = qed_iscsi_setup_connection(p_hwfn, p_conn); 763fc831825SYuval Mintz 764fc831825SYuval Mintz if (rc) { 765fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 766fc831825SYuval Mintz qed_cxt_release_cid(p_hwfn, icid); 767fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 768fc831825SYuval Mintz return rc; 769fc831825SYuval Mintz } 770fc831825SYuval Mintz 771fc831825SYuval Mintz p_conn->icid = icid; 772fc831825SYuval Mintz p_conn->conn_id = (u16)icid; 773fc831825SYuval Mintz p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid; 774fc831825SYuval Mintz 775fc831825SYuval Mintz *p_out_conn = p_conn; 776fc831825SYuval Mintz 777fc831825SYuval Mintz return rc; 778fc831825SYuval Mintz } 779fc831825SYuval Mintz 780fc831825SYuval Mintz static void qed_iscsi_release_connection(struct qed_hwfn *p_hwfn, 781fc831825SYuval Mintz struct qed_iscsi_conn *p_conn) 782fc831825SYuval Mintz { 783fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 784fc831825SYuval Mintz list_add_tail(&p_conn->list_entry, &p_hwfn->p_iscsi_info->free_list); 785fc831825SYuval Mintz qed_cxt_release_cid(p_hwfn, p_conn->icid); 786fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 787fc831825SYuval Mintz } 788fc831825SYuval Mintz 7894621ceb2SMintz, Yuval void qed_iscsi_free_connection(struct qed_hwfn *p_hwfn, 7904621ceb2SMintz, Yuval struct qed_iscsi_conn *p_conn) 7914621ceb2SMintz, Yuval { 7924621ceb2SMintz, Yuval qed_chain_free(p_hwfn->cdev, &p_conn->xhq); 7934621ceb2SMintz, Yuval qed_chain_free(p_hwfn->cdev, &p_conn->uhq); 7944621ceb2SMintz, Yuval qed_chain_free(p_hwfn->cdev, &p_conn->r2tq); 7954621ceb2SMintz, Yuval dma_free_coherent(&p_hwfn->cdev->pdev->dev, 7964621ceb2SMintz, Yuval sizeof(struct tcp_upload_params), 7974621ceb2SMintz, Yuval p_conn->tcp_upload_params_virt_addr, 7984621ceb2SMintz, Yuval p_conn->tcp_upload_params_phys_addr); 7994621ceb2SMintz, Yuval dma_free_coherent(&p_hwfn->cdev->pdev->dev, 8004621ceb2SMintz, Yuval sizeof(struct scsi_terminate_extra_params), 8014621ceb2SMintz, Yuval p_conn->queue_cnts_virt_addr, 8024621ceb2SMintz, Yuval p_conn->queue_cnts_phys_addr); 8034621ceb2SMintz, Yuval kfree(p_conn); 8044621ceb2SMintz, Yuval } 8054621ceb2SMintz, Yuval 806fc831825SYuval Mintz struct qed_iscsi_info *qed_iscsi_alloc(struct qed_hwfn *p_hwfn) 807fc831825SYuval Mintz { 808fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info; 809fc831825SYuval Mintz 810fc831825SYuval Mintz p_iscsi_info = kzalloc(sizeof(*p_iscsi_info), GFP_KERNEL); 811fc831825SYuval Mintz if (!p_iscsi_info) 812fc831825SYuval Mintz return NULL; 813fc831825SYuval Mintz 814fc831825SYuval Mintz INIT_LIST_HEAD(&p_iscsi_info->free_list); 815fc831825SYuval Mintz return p_iscsi_info; 816fc831825SYuval Mintz } 817fc831825SYuval Mintz 818fc831825SYuval Mintz void qed_iscsi_setup(struct qed_hwfn *p_hwfn, 819fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info) 820fc831825SYuval Mintz { 821fc831825SYuval Mintz spin_lock_init(&p_iscsi_info->lock); 822fc831825SYuval Mintz } 823fc831825SYuval Mintz 824fc831825SYuval Mintz void qed_iscsi_free(struct qed_hwfn *p_hwfn, 825fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info) 826fc831825SYuval Mintz { 8274621ceb2SMintz, Yuval struct qed_iscsi_conn *p_conn = NULL; 8284621ceb2SMintz, Yuval 8294621ceb2SMintz, Yuval while (!list_empty(&p_hwfn->p_iscsi_info->free_list)) { 8304621ceb2SMintz, Yuval p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list, 8314621ceb2SMintz, Yuval struct qed_iscsi_conn, list_entry); 8324621ceb2SMintz, Yuval if (p_conn) { 8334621ceb2SMintz, Yuval list_del(&p_conn->list_entry); 8344621ceb2SMintz, Yuval qed_iscsi_free_connection(p_hwfn, p_conn); 8354621ceb2SMintz, Yuval } 8364621ceb2SMintz, Yuval } 8374621ceb2SMintz, Yuval 838fc831825SYuval Mintz kfree(p_iscsi_info); 839fc831825SYuval Mintz } 840fc831825SYuval Mintz 841fc831825SYuval Mintz static void _qed_iscsi_get_tstats(struct qed_hwfn *p_hwfn, 842fc831825SYuval Mintz struct qed_ptt *p_ptt, 843fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 844fc831825SYuval Mintz { 845fc831825SYuval Mintz struct tstorm_iscsi_stats_drv tstats; 846fc831825SYuval Mintz u32 tstats_addr; 847fc831825SYuval Mintz 848fc831825SYuval Mintz memset(&tstats, 0, sizeof(tstats)); 849fc831825SYuval Mintz tstats_addr = BAR0_MAP_REG_TSDM_RAM + 850fc831825SYuval Mintz TSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 851fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats)); 852fc831825SYuval Mintz 853fc831825SYuval Mintz p_stats->iscsi_rx_bytes_cnt = 854fc831825SYuval Mintz HILO_64_REGPAIR(tstats.iscsi_rx_bytes_cnt); 855fc831825SYuval Mintz p_stats->iscsi_rx_packet_cnt = 856fc831825SYuval Mintz HILO_64_REGPAIR(tstats.iscsi_rx_packet_cnt); 857fc831825SYuval Mintz p_stats->iscsi_cmdq_threshold_cnt = 858fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_cmdq_threshold_cnt); 859fc831825SYuval Mintz p_stats->iscsi_rq_threshold_cnt = 860fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_rq_threshold_cnt); 861fc831825SYuval Mintz p_stats->iscsi_immq_threshold_cnt = 862fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_immq_threshold_cnt); 863fc831825SYuval Mintz } 864fc831825SYuval Mintz 865fc831825SYuval Mintz static void _qed_iscsi_get_mstats(struct qed_hwfn *p_hwfn, 866fc831825SYuval Mintz struct qed_ptt *p_ptt, 867fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 868fc831825SYuval Mintz { 869fc831825SYuval Mintz struct mstorm_iscsi_stats_drv mstats; 870fc831825SYuval Mintz u32 mstats_addr; 871fc831825SYuval Mintz 872fc831825SYuval Mintz memset(&mstats, 0, sizeof(mstats)); 873fc831825SYuval Mintz mstats_addr = BAR0_MAP_REG_MSDM_RAM + 874fc831825SYuval Mintz MSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 875fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &mstats, mstats_addr, sizeof(mstats)); 876fc831825SYuval Mintz 877fc831825SYuval Mintz p_stats->iscsi_rx_dropped_pdus_task_not_valid = 878fc831825SYuval Mintz HILO_64_REGPAIR(mstats.iscsi_rx_dropped_pdus_task_not_valid); 879fc831825SYuval Mintz } 880fc831825SYuval Mintz 881fc831825SYuval Mintz static void _qed_iscsi_get_ustats(struct qed_hwfn *p_hwfn, 882fc831825SYuval Mintz struct qed_ptt *p_ptt, 883fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 884fc831825SYuval Mintz { 885fc831825SYuval Mintz struct ustorm_iscsi_stats_drv ustats; 886fc831825SYuval Mintz u32 ustats_addr; 887fc831825SYuval Mintz 888fc831825SYuval Mintz memset(&ustats, 0, sizeof(ustats)); 889fc831825SYuval Mintz ustats_addr = BAR0_MAP_REG_USDM_RAM + 890fc831825SYuval Mintz USTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 891fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &ustats, ustats_addr, sizeof(ustats)); 892fc831825SYuval Mintz 893fc831825SYuval Mintz p_stats->iscsi_rx_data_pdu_cnt = 894fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_data_pdu_cnt); 895fc831825SYuval Mintz p_stats->iscsi_rx_r2t_pdu_cnt = 896fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_r2t_pdu_cnt); 897fc831825SYuval Mintz p_stats->iscsi_rx_total_pdu_cnt = 898fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_total_pdu_cnt); 899fc831825SYuval Mintz } 900fc831825SYuval Mintz 901fc831825SYuval Mintz static void _qed_iscsi_get_xstats(struct qed_hwfn *p_hwfn, 902fc831825SYuval Mintz struct qed_ptt *p_ptt, 903fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 904fc831825SYuval Mintz { 905fc831825SYuval Mintz struct xstorm_iscsi_stats_drv xstats; 906fc831825SYuval Mintz u32 xstats_addr; 907fc831825SYuval Mintz 908fc831825SYuval Mintz memset(&xstats, 0, sizeof(xstats)); 909fc831825SYuval Mintz xstats_addr = BAR0_MAP_REG_XSDM_RAM + 910fc831825SYuval Mintz XSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 911fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &xstats, xstats_addr, sizeof(xstats)); 912fc831825SYuval Mintz 913fc831825SYuval Mintz p_stats->iscsi_tx_go_to_slow_start_event_cnt = 914fc831825SYuval Mintz HILO_64_REGPAIR(xstats.iscsi_tx_go_to_slow_start_event_cnt); 915fc831825SYuval Mintz p_stats->iscsi_tx_fast_retransmit_event_cnt = 916fc831825SYuval Mintz HILO_64_REGPAIR(xstats.iscsi_tx_fast_retransmit_event_cnt); 917fc831825SYuval Mintz } 918fc831825SYuval Mintz 919fc831825SYuval Mintz static void _qed_iscsi_get_ystats(struct qed_hwfn *p_hwfn, 920fc831825SYuval Mintz struct qed_ptt *p_ptt, 921fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 922fc831825SYuval Mintz { 923fc831825SYuval Mintz struct ystorm_iscsi_stats_drv ystats; 924fc831825SYuval Mintz u32 ystats_addr; 925fc831825SYuval Mintz 926fc831825SYuval Mintz memset(&ystats, 0, sizeof(ystats)); 927fc831825SYuval Mintz ystats_addr = BAR0_MAP_REG_YSDM_RAM + 928fc831825SYuval Mintz YSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 929fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &ystats, ystats_addr, sizeof(ystats)); 930fc831825SYuval Mintz 931fc831825SYuval Mintz p_stats->iscsi_tx_data_pdu_cnt = 932fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_data_pdu_cnt); 933fc831825SYuval Mintz p_stats->iscsi_tx_r2t_pdu_cnt = 934fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_r2t_pdu_cnt); 935fc831825SYuval Mintz p_stats->iscsi_tx_total_pdu_cnt = 936fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_total_pdu_cnt); 937fc831825SYuval Mintz } 938fc831825SYuval Mintz 939fc831825SYuval Mintz static void _qed_iscsi_get_pstats(struct qed_hwfn *p_hwfn, 940fc831825SYuval Mintz struct qed_ptt *p_ptt, 941fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 942fc831825SYuval Mintz { 943fc831825SYuval Mintz struct pstorm_iscsi_stats_drv pstats; 944fc831825SYuval Mintz u32 pstats_addr; 945fc831825SYuval Mintz 946fc831825SYuval Mintz memset(&pstats, 0, sizeof(pstats)); 947fc831825SYuval Mintz pstats_addr = BAR0_MAP_REG_PSDM_RAM + 948fc831825SYuval Mintz PSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 949fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats)); 950fc831825SYuval Mintz 951fc831825SYuval Mintz p_stats->iscsi_tx_bytes_cnt = 952fc831825SYuval Mintz HILO_64_REGPAIR(pstats.iscsi_tx_bytes_cnt); 953fc831825SYuval Mintz p_stats->iscsi_tx_packet_cnt = 954fc831825SYuval Mintz HILO_64_REGPAIR(pstats.iscsi_tx_packet_cnt); 955fc831825SYuval Mintz } 956fc831825SYuval Mintz 957fc831825SYuval Mintz static int qed_iscsi_get_stats(struct qed_hwfn *p_hwfn, 958fc831825SYuval Mintz struct qed_iscsi_stats *stats) 959fc831825SYuval Mintz { 960fc831825SYuval Mintz struct qed_ptt *p_ptt; 961fc831825SYuval Mintz 962fc831825SYuval Mintz memset(stats, 0, sizeof(*stats)); 963fc831825SYuval Mintz 964fc831825SYuval Mintz p_ptt = qed_ptt_acquire(p_hwfn); 965fc831825SYuval Mintz if (!p_ptt) { 966fc831825SYuval Mintz DP_ERR(p_hwfn, "Failed to acquire ptt\n"); 967fc831825SYuval Mintz return -EAGAIN; 968fc831825SYuval Mintz } 969fc831825SYuval Mintz 970fc831825SYuval Mintz _qed_iscsi_get_tstats(p_hwfn, p_ptt, stats); 971fc831825SYuval Mintz _qed_iscsi_get_mstats(p_hwfn, p_ptt, stats); 972fc831825SYuval Mintz _qed_iscsi_get_ustats(p_hwfn, p_ptt, stats); 973fc831825SYuval Mintz 974fc831825SYuval Mintz _qed_iscsi_get_xstats(p_hwfn, p_ptt, stats); 975fc831825SYuval Mintz _qed_iscsi_get_ystats(p_hwfn, p_ptt, stats); 976fc831825SYuval Mintz _qed_iscsi_get_pstats(p_hwfn, p_ptt, stats); 977fc831825SYuval Mintz 978fc831825SYuval Mintz qed_ptt_release(p_hwfn, p_ptt); 979fc831825SYuval Mintz 980fc831825SYuval Mintz return 0; 981fc831825SYuval Mintz } 982fc831825SYuval Mintz 983fc831825SYuval Mintz struct qed_hash_iscsi_con { 984fc831825SYuval Mintz struct hlist_node node; 985fc831825SYuval Mintz struct qed_iscsi_conn *con; 986fc831825SYuval Mintz }; 987fc831825SYuval Mintz 988fc831825SYuval Mintz static int qed_fill_iscsi_dev_info(struct qed_dev *cdev, 989fc831825SYuval Mintz struct qed_dev_iscsi_info *info) 990fc831825SYuval Mintz { 991fc831825SYuval Mintz struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 992fc831825SYuval Mintz 993fc831825SYuval Mintz int rc; 994fc831825SYuval Mintz 995fc831825SYuval Mintz memset(info, 0, sizeof(*info)); 996fc831825SYuval Mintz rc = qed_fill_dev_info(cdev, &info->common); 997fc831825SYuval Mintz 998fc831825SYuval Mintz info->primary_dbq_rq_addr = 999fc831825SYuval Mintz qed_iscsi_get_primary_bdq_prod(hwfn, BDQ_ID_RQ); 1000fc831825SYuval Mintz info->secondary_bdq_rq_addr = 1001fc831825SYuval Mintz qed_iscsi_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ); 1002fc831825SYuval Mintz 1003fc831825SYuval Mintz return rc; 1004fc831825SYuval Mintz } 1005fc831825SYuval Mintz 1006fc831825SYuval Mintz static void qed_register_iscsi_ops(struct qed_dev *cdev, 1007fc831825SYuval Mintz struct qed_iscsi_cb_ops *ops, void *cookie) 1008fc831825SYuval Mintz { 1009fc831825SYuval Mintz cdev->protocol_ops.iscsi = ops; 1010fc831825SYuval Mintz cdev->ops_cookie = cookie; 1011fc831825SYuval Mintz } 1012fc831825SYuval Mintz 1013fc831825SYuval Mintz static struct qed_hash_iscsi_con *qed_iscsi_get_hash(struct qed_dev *cdev, 1014fc831825SYuval Mintz u32 handle) 1015fc831825SYuval Mintz { 1016fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con = NULL; 1017fc831825SYuval Mintz 1018fc831825SYuval Mintz if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) 1019fc831825SYuval Mintz return NULL; 1020fc831825SYuval Mintz 1021fc831825SYuval Mintz hash_for_each_possible(cdev->connections, hash_con, node, handle) { 1022fc831825SYuval Mintz if (hash_con->con->icid == handle) 1023fc831825SYuval Mintz break; 1024fc831825SYuval Mintz } 1025fc831825SYuval Mintz 1026fc831825SYuval Mintz if (!hash_con || (hash_con->con->icid != handle)) 1027fc831825SYuval Mintz return NULL; 1028fc831825SYuval Mintz 1029fc831825SYuval Mintz return hash_con; 1030fc831825SYuval Mintz } 1031fc831825SYuval Mintz 1032fc831825SYuval Mintz static int qed_iscsi_stop(struct qed_dev *cdev) 1033fc831825SYuval Mintz { 1034fc831825SYuval Mintz int rc; 1035fc831825SYuval Mintz 1036fc831825SYuval Mintz if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) { 1037fc831825SYuval Mintz DP_NOTICE(cdev, "iscsi already stopped\n"); 1038fc831825SYuval Mintz return 0; 1039fc831825SYuval Mintz } 1040fc831825SYuval Mintz 1041fc831825SYuval Mintz if (!hash_empty(cdev->connections)) { 1042fc831825SYuval Mintz DP_NOTICE(cdev, 1043fc831825SYuval Mintz "Can't stop iscsi - not all connections were returned\n"); 1044fc831825SYuval Mintz return -EINVAL; 1045fc831825SYuval Mintz } 1046fc831825SYuval Mintz 1047fc831825SYuval Mintz /* Stop the iscsi */ 1048fc831825SYuval Mintz rc = qed_sp_iscsi_func_stop(QED_LEADING_HWFN(cdev), 1049fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1050fc831825SYuval Mintz cdev->flags &= ~QED_FLAG_STORAGE_STARTED; 1051fc831825SYuval Mintz 1052fc831825SYuval Mintz return rc; 1053fc831825SYuval Mintz } 1054fc831825SYuval Mintz 1055fc831825SYuval Mintz static int qed_iscsi_start(struct qed_dev *cdev, 1056fc831825SYuval Mintz struct qed_iscsi_tid *tasks, 1057fc831825SYuval Mintz void *event_context, 1058fc831825SYuval Mintz iscsi_event_cb_t async_event_cb) 1059fc831825SYuval Mintz { 1060fc831825SYuval Mintz int rc; 1061fc831825SYuval Mintz struct qed_tid_mem *tid_info; 1062fc831825SYuval Mintz 1063fc831825SYuval Mintz if (cdev->flags & QED_FLAG_STORAGE_STARTED) { 1064fc831825SYuval Mintz DP_NOTICE(cdev, "iscsi already started;\n"); 1065fc831825SYuval Mintz return 0; 1066fc831825SYuval Mintz } 1067fc831825SYuval Mintz 1068fc831825SYuval Mintz rc = qed_sp_iscsi_func_start(QED_LEADING_HWFN(cdev), 1069fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL, event_context, 1070fc831825SYuval Mintz async_event_cb); 1071fc831825SYuval Mintz if (rc) { 1072fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to start iscsi\n"); 1073fc831825SYuval Mintz return rc; 1074fc831825SYuval Mintz } 1075fc831825SYuval Mintz 1076fc831825SYuval Mintz cdev->flags |= QED_FLAG_STORAGE_STARTED; 1077fc831825SYuval Mintz hash_init(cdev->connections); 1078fc831825SYuval Mintz 1079fc831825SYuval Mintz if (!tasks) 1080fc831825SYuval Mintz return 0; 1081fc831825SYuval Mintz 1082fc831825SYuval Mintz tid_info = kzalloc(sizeof(*tid_info), GFP_KERNEL); 1083fc831825SYuval Mintz 1084fc831825SYuval Mintz if (!tid_info) { 1085fc831825SYuval Mintz qed_iscsi_stop(cdev); 1086fc831825SYuval Mintz return -ENOMEM; 1087fc831825SYuval Mintz } 1088fc831825SYuval Mintz 1089fc831825SYuval Mintz rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), 1090fc831825SYuval Mintz tid_info); 1091fc831825SYuval Mintz if (rc) { 1092fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to gather task information\n"); 1093fc831825SYuval Mintz qed_iscsi_stop(cdev); 1094fc831825SYuval Mintz kfree(tid_info); 1095fc831825SYuval Mintz return rc; 1096fc831825SYuval Mintz } 1097fc831825SYuval Mintz 1098fc831825SYuval Mintz /* Fill task information */ 1099fc831825SYuval Mintz tasks->size = tid_info->tid_size; 1100fc831825SYuval Mintz tasks->num_tids_per_block = tid_info->num_tids_per_block; 1101fc831825SYuval Mintz memcpy(tasks->blocks, tid_info->blocks, 1102fc831825SYuval Mintz MAX_TID_BLOCKS_ISCSI * sizeof(u8 *)); 1103fc831825SYuval Mintz 1104fc831825SYuval Mintz kfree(tid_info); 1105fc831825SYuval Mintz 1106fc831825SYuval Mintz return 0; 1107fc831825SYuval Mintz } 1108fc831825SYuval Mintz 1109fc831825SYuval Mintz static int qed_iscsi_acquire_conn(struct qed_dev *cdev, 1110fc831825SYuval Mintz u32 *handle, 1111fc831825SYuval Mintz u32 *fw_cid, void __iomem **p_doorbell) 1112fc831825SYuval Mintz { 1113fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1114fc831825SYuval Mintz int rc; 1115fc831825SYuval Mintz 1116fc831825SYuval Mintz /* Allocate a hashed connection */ 1117fc831825SYuval Mintz hash_con = kzalloc(sizeof(*hash_con), GFP_ATOMIC); 1118fc831825SYuval Mintz if (!hash_con) 1119fc831825SYuval Mintz return -ENOMEM; 1120fc831825SYuval Mintz 1121fc831825SYuval Mintz /* Acquire the connection */ 1122fc831825SYuval Mintz rc = qed_iscsi_acquire_connection(QED_LEADING_HWFN(cdev), NULL, 1123fc831825SYuval Mintz &hash_con->con); 1124fc831825SYuval Mintz if (rc) { 1125fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to acquire Connection\n"); 1126fc831825SYuval Mintz kfree(hash_con); 1127fc831825SYuval Mintz return rc; 1128fc831825SYuval Mintz } 1129fc831825SYuval Mintz 1130fc831825SYuval Mintz /* Added the connection to hash table */ 1131fc831825SYuval Mintz *handle = hash_con->con->icid; 1132fc831825SYuval Mintz *fw_cid = hash_con->con->fw_cid; 1133fc831825SYuval Mintz hash_add(cdev->connections, &hash_con->node, *handle); 1134fc831825SYuval Mintz 1135fc831825SYuval Mintz if (p_doorbell) 1136fc831825SYuval Mintz *p_doorbell = qed_iscsi_get_db_addr(QED_LEADING_HWFN(cdev), 1137fc831825SYuval Mintz *handle); 1138fc831825SYuval Mintz 1139fc831825SYuval Mintz return 0; 1140fc831825SYuval Mintz } 1141fc831825SYuval Mintz 1142fc831825SYuval Mintz static int qed_iscsi_release_conn(struct qed_dev *cdev, u32 handle) 1143fc831825SYuval Mintz { 1144fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1145fc831825SYuval Mintz 1146fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1147fc831825SYuval Mintz if (!hash_con) { 1148fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1149fc831825SYuval Mintz handle); 1150fc831825SYuval Mintz return -EINVAL; 1151fc831825SYuval Mintz } 1152fc831825SYuval Mintz 1153fc831825SYuval Mintz hlist_del(&hash_con->node); 1154fc831825SYuval Mintz qed_iscsi_release_connection(QED_LEADING_HWFN(cdev), hash_con->con); 1155fc831825SYuval Mintz kfree(hash_con); 1156fc831825SYuval Mintz 1157fc831825SYuval Mintz return 0; 1158fc831825SYuval Mintz } 1159fc831825SYuval Mintz 1160fc831825SYuval Mintz static int qed_iscsi_offload_conn(struct qed_dev *cdev, 1161fc831825SYuval Mintz u32 handle, 1162fc831825SYuval Mintz struct qed_iscsi_params_offload *conn_info) 1163fc831825SYuval Mintz { 1164fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1165fc831825SYuval Mintz struct qed_iscsi_conn *con; 1166fc831825SYuval Mintz 1167fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1168fc831825SYuval Mintz if (!hash_con) { 1169fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1170fc831825SYuval Mintz handle); 1171fc831825SYuval Mintz return -EINVAL; 1172fc831825SYuval Mintz } 1173fc831825SYuval Mintz 1174fc831825SYuval Mintz /* Update the connection with information from the params */ 1175fc831825SYuval Mintz con = hash_con->con; 1176fc831825SYuval Mintz 1177fc831825SYuval Mintz ether_addr_copy(con->local_mac, conn_info->src.mac); 1178fc831825SYuval Mintz ether_addr_copy(con->remote_mac, conn_info->dst.mac); 1179fc831825SYuval Mintz memcpy(con->local_ip, conn_info->src.ip, sizeof(con->local_ip)); 1180fc831825SYuval Mintz memcpy(con->remote_ip, conn_info->dst.ip, sizeof(con->remote_ip)); 1181fc831825SYuval Mintz con->local_port = conn_info->src.port; 1182fc831825SYuval Mintz con->remote_port = conn_info->dst.port; 1183fc831825SYuval Mintz 1184fc831825SYuval Mintz con->layer_code = conn_info->layer_code; 1185fc831825SYuval Mintz con->sq_pbl_addr = conn_info->sq_pbl_addr; 1186fc831825SYuval Mintz con->initial_ack = conn_info->initial_ack; 1187fc831825SYuval Mintz con->vlan_id = conn_info->vlan_id; 1188fc831825SYuval Mintz con->tcp_flags = conn_info->tcp_flags; 1189fc831825SYuval Mintz con->ip_version = conn_info->ip_version; 1190fc831825SYuval Mintz con->default_cq = conn_info->default_cq; 1191fc831825SYuval Mintz con->ka_max_probe_cnt = conn_info->ka_max_probe_cnt; 1192fc831825SYuval Mintz con->dup_ack_theshold = conn_info->dup_ack_theshold; 1193fc831825SYuval Mintz con->rcv_next = conn_info->rcv_next; 1194fc831825SYuval Mintz con->snd_una = conn_info->snd_una; 1195fc831825SYuval Mintz con->snd_next = conn_info->snd_next; 1196fc831825SYuval Mintz con->snd_max = conn_info->snd_max; 1197fc831825SYuval Mintz con->snd_wnd = conn_info->snd_wnd; 1198fc831825SYuval Mintz con->rcv_wnd = conn_info->rcv_wnd; 1199fc831825SYuval Mintz con->snd_wl1 = conn_info->snd_wl1; 1200fc831825SYuval Mintz con->cwnd = conn_info->cwnd; 1201fc831825SYuval Mintz con->ss_thresh = conn_info->ss_thresh; 1202fc831825SYuval Mintz con->srtt = conn_info->srtt; 1203fc831825SYuval Mintz con->rtt_var = conn_info->rtt_var; 1204fc831825SYuval Mintz con->ts_time = conn_info->ts_time; 1205fc831825SYuval Mintz con->ts_recent = conn_info->ts_recent; 1206fc831825SYuval Mintz con->ts_recent_age = conn_info->ts_recent_age; 1207fc831825SYuval Mintz con->total_rt = conn_info->total_rt; 1208fc831825SYuval Mintz con->ka_timeout_delta = conn_info->ka_timeout_delta; 1209fc831825SYuval Mintz con->rt_timeout_delta = conn_info->rt_timeout_delta; 1210fc831825SYuval Mintz con->dup_ack_cnt = conn_info->dup_ack_cnt; 1211fc831825SYuval Mintz con->snd_wnd_probe_cnt = conn_info->snd_wnd_probe_cnt; 1212fc831825SYuval Mintz con->ka_probe_cnt = conn_info->ka_probe_cnt; 1213fc831825SYuval Mintz con->rt_cnt = conn_info->rt_cnt; 1214fc831825SYuval Mintz con->flow_label = conn_info->flow_label; 1215fc831825SYuval Mintz con->ka_timeout = conn_info->ka_timeout; 1216fc831825SYuval Mintz con->ka_interval = conn_info->ka_interval; 1217fc831825SYuval Mintz con->max_rt_time = conn_info->max_rt_time; 1218fc831825SYuval Mintz con->initial_rcv_wnd = conn_info->initial_rcv_wnd; 1219fc831825SYuval Mintz con->ttl = conn_info->ttl; 1220fc831825SYuval Mintz con->tos_or_tc = conn_info->tos_or_tc; 1221fc831825SYuval Mintz con->remote_port = conn_info->remote_port; 1222fc831825SYuval Mintz con->local_port = conn_info->local_port; 1223fc831825SYuval Mintz con->mss = conn_info->mss; 1224fc831825SYuval Mintz con->snd_wnd_scale = conn_info->snd_wnd_scale; 1225fc831825SYuval Mintz con->rcv_wnd_scale = conn_info->rcv_wnd_scale; 1226fc831825SYuval Mintz con->ts_ticks_per_second = conn_info->ts_ticks_per_second; 1227fc831825SYuval Mintz con->da_timeout_value = conn_info->da_timeout_value; 1228fc831825SYuval Mintz con->ack_frequency = conn_info->ack_frequency; 1229fc831825SYuval Mintz 1230fc831825SYuval Mintz /* Set default values on other connection fields */ 1231fc831825SYuval Mintz con->offl_flags = 0x1; 1232fc831825SYuval Mintz 1233fc831825SYuval Mintz return qed_sp_iscsi_conn_offload(QED_LEADING_HWFN(cdev), con, 1234fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1235fc831825SYuval Mintz } 1236fc831825SYuval Mintz 1237fc831825SYuval Mintz static int qed_iscsi_update_conn(struct qed_dev *cdev, 1238fc831825SYuval Mintz u32 handle, 1239fc831825SYuval Mintz struct qed_iscsi_params_update *conn_info) 1240fc831825SYuval Mintz { 1241fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1242fc831825SYuval Mintz struct qed_iscsi_conn *con; 1243fc831825SYuval Mintz 1244fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1245fc831825SYuval Mintz if (!hash_con) { 1246fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1247fc831825SYuval Mintz handle); 1248fc831825SYuval Mintz return -EINVAL; 1249fc831825SYuval Mintz } 1250fc831825SYuval Mintz 1251fc831825SYuval Mintz /* Update the connection with information from the params */ 1252fc831825SYuval Mintz con = hash_con->con; 1253fc831825SYuval Mintz con->update_flag = conn_info->update_flag; 1254fc831825SYuval Mintz con->max_seq_size = conn_info->max_seq_size; 1255fc831825SYuval Mintz con->max_recv_pdu_length = conn_info->max_recv_pdu_length; 1256fc831825SYuval Mintz con->max_send_pdu_length = conn_info->max_send_pdu_length; 1257fc831825SYuval Mintz con->first_seq_length = conn_info->first_seq_length; 1258fc831825SYuval Mintz con->exp_stat_sn = conn_info->exp_stat_sn; 1259fc831825SYuval Mintz 1260fc831825SYuval Mintz return qed_sp_iscsi_conn_update(QED_LEADING_HWFN(cdev), con, 1261fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1262fc831825SYuval Mintz } 1263fc831825SYuval Mintz 1264fc831825SYuval Mintz static int qed_iscsi_clear_conn_sq(struct qed_dev *cdev, u32 handle) 1265fc831825SYuval Mintz { 1266fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1267fc831825SYuval Mintz 1268fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1269fc831825SYuval Mintz if (!hash_con) { 1270fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1271fc831825SYuval Mintz handle); 1272fc831825SYuval Mintz return -EINVAL; 1273fc831825SYuval Mintz } 1274fc831825SYuval Mintz 1275fc831825SYuval Mintz return qed_sp_iscsi_conn_clear_sq(QED_LEADING_HWFN(cdev), 1276fc831825SYuval Mintz hash_con->con, 1277fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1278fc831825SYuval Mintz } 1279fc831825SYuval Mintz 1280fc831825SYuval Mintz static int qed_iscsi_destroy_conn(struct qed_dev *cdev, 1281fc831825SYuval Mintz u32 handle, u8 abrt_conn) 1282fc831825SYuval Mintz { 1283fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1284fc831825SYuval Mintz 1285fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1286fc831825SYuval Mintz if (!hash_con) { 1287fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1288fc831825SYuval Mintz handle); 1289fc831825SYuval Mintz return -EINVAL; 1290fc831825SYuval Mintz } 1291fc831825SYuval Mintz 1292fc831825SYuval Mintz hash_con->con->abortive_dsconnect = abrt_conn; 1293fc831825SYuval Mintz 1294fc831825SYuval Mintz return qed_sp_iscsi_conn_terminate(QED_LEADING_HWFN(cdev), 1295fc831825SYuval Mintz hash_con->con, 1296fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1297fc831825SYuval Mintz } 1298fc831825SYuval Mintz 1299fc831825SYuval Mintz static int qed_iscsi_stats(struct qed_dev *cdev, struct qed_iscsi_stats *stats) 1300fc831825SYuval Mintz { 1301fc831825SYuval Mintz return qed_iscsi_get_stats(QED_LEADING_HWFN(cdev), stats); 1302fc831825SYuval Mintz } 1303fc831825SYuval Mintz 1304fc831825SYuval Mintz static const struct qed_iscsi_ops qed_iscsi_ops_pass = { 1305fc831825SYuval Mintz .common = &qed_common_ops_pass, 1306fc831825SYuval Mintz .ll2 = &qed_ll2_ops_pass, 1307fc831825SYuval Mintz .fill_dev_info = &qed_fill_iscsi_dev_info, 1308fc831825SYuval Mintz .register_ops = &qed_register_iscsi_ops, 1309fc831825SYuval Mintz .start = &qed_iscsi_start, 1310fc831825SYuval Mintz .stop = &qed_iscsi_stop, 1311fc831825SYuval Mintz .acquire_conn = &qed_iscsi_acquire_conn, 1312fc831825SYuval Mintz .release_conn = &qed_iscsi_release_conn, 1313fc831825SYuval Mintz .offload_conn = &qed_iscsi_offload_conn, 1314fc831825SYuval Mintz .update_conn = &qed_iscsi_update_conn, 1315fc831825SYuval Mintz .destroy_conn = &qed_iscsi_destroy_conn, 1316fc831825SYuval Mintz .clear_sq = &qed_iscsi_clear_conn_sq, 1317fc831825SYuval Mintz .get_stats = &qed_iscsi_stats, 1318fc831825SYuval Mintz }; 1319fc831825SYuval Mintz 13207729bad4SArnd Bergmann const struct qed_iscsi_ops *qed_get_iscsi_ops(void) 1321fc831825SYuval Mintz { 1322fc831825SYuval Mintz return &qed_iscsi_ops_pass; 1323fc831825SYuval Mintz } 1324fc831825SYuval Mintz EXPORT_SYMBOL(qed_get_iscsi_ops); 1325fc831825SYuval Mintz 1326fc831825SYuval Mintz void qed_put_iscsi_ops(void) 1327fc831825SYuval Mintz { 1328fc831825SYuval Mintz } 1329fc831825SYuval Mintz EXPORT_SYMBOL(qed_put_iscsi_ops); 1330