1fc831825SYuval Mintz /* QLogic qed NIC Driver 2fc831825SYuval Mintz * Copyright (c) 2015 QLogic Corporation 3fc831825SYuval Mintz * 4fc831825SYuval Mintz * This software is available under the terms of the GNU General Public License 5fc831825SYuval Mintz * (GPL) Version 2, available from the file COPYING in the main directory of 6fc831825SYuval Mintz * this source tree. 7fc831825SYuval Mintz */ 8fc831825SYuval Mintz 9fc831825SYuval Mintz #include <linux/types.h> 10fc831825SYuval Mintz #include <asm/byteorder.h> 11fc831825SYuval Mintz #include <asm/param.h> 12fc831825SYuval Mintz #include <linux/delay.h> 13fc831825SYuval Mintz #include <linux/dma-mapping.h> 14fc831825SYuval Mintz #include <linux/etherdevice.h> 15fc831825SYuval Mintz #include <linux/interrupt.h> 16fc831825SYuval Mintz #include <linux/kernel.h> 17fc831825SYuval Mintz #include <linux/log2.h> 18fc831825SYuval Mintz #include <linux/module.h> 19fc831825SYuval Mintz #include <linux/pci.h> 20fc831825SYuval Mintz #include <linux/slab.h> 21fc831825SYuval Mintz #include <linux/stddef.h> 22fc831825SYuval Mintz #include <linux/string.h> 23fc831825SYuval Mintz #include <linux/version.h> 24fc831825SYuval Mintz #include <linux/workqueue.h> 25fc831825SYuval Mintz #include <linux/errno.h> 26fc831825SYuval Mintz #include <linux/list.h> 27fc831825SYuval Mintz #include <linux/spinlock.h> 28fc831825SYuval Mintz #include <linux/qed/qed_iscsi_if.h> 29fc831825SYuval Mintz #include "qed.h" 30fc831825SYuval Mintz #include "qed_cxt.h" 31fc831825SYuval Mintz #include "qed_dev_api.h" 32fc831825SYuval Mintz #include "qed_hsi.h" 33fc831825SYuval Mintz #include "qed_hw.h" 34fc831825SYuval Mintz #include "qed_int.h" 35fc831825SYuval Mintz #include "qed_iscsi.h" 36fc831825SYuval Mintz #include "qed_ll2.h" 37fc831825SYuval Mintz #include "qed_mcp.h" 38fc831825SYuval Mintz #include "qed_sp.h" 39fc831825SYuval Mintz #include "qed_sriov.h" 40fc831825SYuval Mintz #include "qed_reg_addr.h" 41fc831825SYuval Mintz 42fc831825SYuval Mintz struct qed_iscsi_conn { 43fc831825SYuval Mintz struct list_head list_entry; 44fc831825SYuval Mintz bool free_on_delete; 45fc831825SYuval Mintz 46fc831825SYuval Mintz u16 conn_id; 47fc831825SYuval Mintz u32 icid; 48fc831825SYuval Mintz u32 fw_cid; 49fc831825SYuval Mintz 50fc831825SYuval Mintz u8 layer_code; 51fc831825SYuval Mintz u8 offl_flags; 52fc831825SYuval Mintz u8 connect_mode; 53fc831825SYuval Mintz u32 initial_ack; 54fc831825SYuval Mintz dma_addr_t sq_pbl_addr; 55fc831825SYuval Mintz struct qed_chain r2tq; 56fc831825SYuval Mintz struct qed_chain xhq; 57fc831825SYuval Mintz struct qed_chain uhq; 58fc831825SYuval Mintz 59fc831825SYuval Mintz struct tcp_upload_params *tcp_upload_params_virt_addr; 60fc831825SYuval Mintz dma_addr_t tcp_upload_params_phys_addr; 61fc831825SYuval Mintz struct scsi_terminate_extra_params *queue_cnts_virt_addr; 62fc831825SYuval Mintz dma_addr_t queue_cnts_phys_addr; 63fc831825SYuval Mintz dma_addr_t syn_phy_addr; 64fc831825SYuval Mintz 65fc831825SYuval Mintz u16 syn_ip_payload_length; 66fc831825SYuval Mintz u8 local_mac[6]; 67fc831825SYuval Mintz u8 remote_mac[6]; 68fc831825SYuval Mintz u16 vlan_id; 69fc831825SYuval Mintz u8 tcp_flags; 70fc831825SYuval Mintz u8 ip_version; 71fc831825SYuval Mintz u32 remote_ip[4]; 72fc831825SYuval Mintz u32 local_ip[4]; 73fc831825SYuval Mintz u8 ka_max_probe_cnt; 74fc831825SYuval Mintz u8 dup_ack_theshold; 75fc831825SYuval Mintz u32 rcv_next; 76fc831825SYuval Mintz u32 snd_una; 77fc831825SYuval Mintz u32 snd_next; 78fc831825SYuval Mintz u32 snd_max; 79fc831825SYuval Mintz u32 snd_wnd; 80fc831825SYuval Mintz u32 rcv_wnd; 81fc831825SYuval Mintz u32 snd_wl1; 82fc831825SYuval Mintz u32 cwnd; 83fc831825SYuval Mintz u32 ss_thresh; 84fc831825SYuval Mintz u16 srtt; 85fc831825SYuval Mintz u16 rtt_var; 86fc831825SYuval Mintz u32 ts_time; 87fc831825SYuval Mintz u32 ts_recent; 88fc831825SYuval Mintz u32 ts_recent_age; 89fc831825SYuval Mintz u32 total_rt; 90fc831825SYuval Mintz u32 ka_timeout_delta; 91fc831825SYuval Mintz u32 rt_timeout_delta; 92fc831825SYuval Mintz u8 dup_ack_cnt; 93fc831825SYuval Mintz u8 snd_wnd_probe_cnt; 94fc831825SYuval Mintz u8 ka_probe_cnt; 95fc831825SYuval Mintz u8 rt_cnt; 96fc831825SYuval Mintz u32 flow_label; 97fc831825SYuval Mintz u32 ka_timeout; 98fc831825SYuval Mintz u32 ka_interval; 99fc831825SYuval Mintz u32 max_rt_time; 100fc831825SYuval Mintz u32 initial_rcv_wnd; 101fc831825SYuval Mintz u8 ttl; 102fc831825SYuval Mintz u8 tos_or_tc; 103fc831825SYuval Mintz u16 remote_port; 104fc831825SYuval Mintz u16 local_port; 105fc831825SYuval Mintz u16 mss; 106fc831825SYuval Mintz u8 snd_wnd_scale; 107fc831825SYuval Mintz u8 rcv_wnd_scale; 108fc831825SYuval Mintz u32 ts_ticks_per_second; 109fc831825SYuval Mintz u16 da_timeout_value; 110fc831825SYuval Mintz u8 ack_frequency; 111fc831825SYuval Mintz 112fc831825SYuval Mintz u8 update_flag; 113fc831825SYuval Mintz u8 default_cq; 114fc831825SYuval Mintz u32 max_seq_size; 115fc831825SYuval Mintz u32 max_recv_pdu_length; 116fc831825SYuval Mintz u32 max_send_pdu_length; 117fc831825SYuval Mintz u32 first_seq_length; 118fc831825SYuval Mintz u32 exp_stat_sn; 119fc831825SYuval Mintz u32 stat_sn; 120fc831825SYuval Mintz u16 physical_q0; 121fc831825SYuval Mintz u16 physical_q1; 122fc831825SYuval Mintz u8 abortive_dsconnect; 123fc831825SYuval Mintz }; 124fc831825SYuval Mintz 125fc831825SYuval Mintz static int 126fc831825SYuval Mintz qed_sp_iscsi_func_start(struct qed_hwfn *p_hwfn, 127fc831825SYuval Mintz enum spq_mode comp_mode, 128fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr, 129fc831825SYuval Mintz void *event_context, iscsi_event_cb_t async_event_cb) 130fc831825SYuval Mintz { 131fc831825SYuval Mintz struct iscsi_init_ramrod_params *p_ramrod = NULL; 132fc831825SYuval Mintz struct scsi_init_func_queues *p_queue = NULL; 133fc831825SYuval Mintz struct qed_iscsi_pf_params *p_params = NULL; 134fc831825SYuval Mintz struct iscsi_spe_func_init *p_init = NULL; 135fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 136fc831825SYuval Mintz struct qed_sp_init_data init_data; 137fc831825SYuval Mintz int rc = 0; 138fc831825SYuval Mintz u32 dval; 139fc831825SYuval Mintz u16 val; 140fc831825SYuval Mintz u8 i; 141fc831825SYuval Mintz 142fc831825SYuval Mintz /* Get SPQ entry */ 143fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 144fc831825SYuval Mintz init_data.cid = qed_spq_get_cid(p_hwfn); 145fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 146fc831825SYuval Mintz init_data.comp_mode = comp_mode; 147fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 148fc831825SYuval Mintz 149fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 150fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_INIT_FUNC, 151fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 152fc831825SYuval Mintz if (rc) 153fc831825SYuval Mintz return rc; 154fc831825SYuval Mintz 155fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_init; 156fc831825SYuval Mintz p_init = &p_ramrod->iscsi_init_spe; 157fc831825SYuval Mintz p_params = &p_hwfn->pf_params.iscsi_pf_params; 158fc831825SYuval Mintz p_queue = &p_init->q_params; 159fc831825SYuval Mintz 160fc831825SYuval Mintz SET_FIELD(p_init->hdr.flags, 161fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, ISCSI_SLOW_PATH_LAYER_CODE); 162fc831825SYuval Mintz p_init->hdr.op_code = ISCSI_RAMROD_CMD_ID_INIT_FUNC; 163fc831825SYuval Mintz 164fc831825SYuval Mintz val = p_params->half_way_close_timeout; 165fc831825SYuval Mintz p_init->half_way_close_timeout = cpu_to_le16(val); 166fc831825SYuval Mintz p_init->num_sq_pages_in_ring = p_params->num_sq_pages_in_ring; 167fc831825SYuval Mintz p_init->num_r2tq_pages_in_ring = p_params->num_r2tq_pages_in_ring; 168fc831825SYuval Mintz p_init->num_uhq_pages_in_ring = p_params->num_uhq_pages_in_ring; 169fc831825SYuval Mintz p_init->func_params.log_page_size = p_params->log_page_size; 170fc831825SYuval Mintz val = p_params->num_tasks; 171fc831825SYuval Mintz p_init->func_params.num_tasks = cpu_to_le16(val); 172fc831825SYuval Mintz p_init->debug_mode.flags = p_params->debug_mode; 173fc831825SYuval Mintz 174fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->glbl_q_params_addr, 175fc831825SYuval Mintz p_params->glbl_q_params_addr); 176fc831825SYuval Mintz 177fc831825SYuval Mintz val = p_params->cq_num_entries; 178fc831825SYuval Mintz p_queue->cq_num_entries = cpu_to_le16(val); 179fc831825SYuval Mintz val = p_params->cmdq_num_entries; 180fc831825SYuval Mintz p_queue->cmdq_num_entries = cpu_to_le16(val); 181fc831825SYuval Mintz p_queue->num_queues = p_params->num_queues; 182fc831825SYuval Mintz dval = (u8)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS]; 183fc831825SYuval Mintz p_queue->queue_relative_offset = (u8)dval; 184fc831825SYuval Mintz p_queue->cq_sb_pi = p_params->gl_rq_pi; 185fc831825SYuval Mintz p_queue->cmdq_sb_pi = p_params->gl_cmd_pi; 186fc831825SYuval Mintz 187fc831825SYuval Mintz for (i = 0; i < p_params->num_queues; i++) { 188fc831825SYuval Mintz val = p_hwfn->sbs_info[i]->igu_sb_id; 189fc831825SYuval Mintz p_queue->cq_cmdq_sb_num_arr[i] = cpu_to_le16(val); 190fc831825SYuval Mintz } 191fc831825SYuval Mintz 192fc831825SYuval Mintz p_queue->bdq_resource_id = ISCSI_BDQ_ID(p_hwfn->port_id); 193fc831825SYuval Mintz 194fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_RQ], 195fc831825SYuval Mintz p_params->bdq_pbl_base_addr[BDQ_ID_RQ]); 196fc831825SYuval Mintz p_queue->bdq_pbl_num_entries[BDQ_ID_RQ] = 197fc831825SYuval Mintz p_params->bdq_pbl_num_entries[BDQ_ID_RQ]; 198fc831825SYuval Mintz val = p_params->bdq_xoff_threshold[BDQ_ID_RQ]; 199fc831825SYuval Mintz p_queue->bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(val); 200fc831825SYuval Mintz val = p_params->bdq_xon_threshold[BDQ_ID_RQ]; 201fc831825SYuval Mintz p_queue->bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(val); 202fc831825SYuval Mintz 203fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_IMM_DATA], 204fc831825SYuval Mintz p_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]); 205fc831825SYuval Mintz p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA] = 206fc831825SYuval Mintz p_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA]; 207fc831825SYuval Mintz val = p_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA]; 208fc831825SYuval Mintz p_queue->bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val); 209fc831825SYuval Mintz val = p_params->bdq_xon_threshold[BDQ_ID_IMM_DATA]; 210fc831825SYuval Mintz p_queue->bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val); 211fc831825SYuval Mintz val = p_params->rq_buffer_size; 212fc831825SYuval Mintz p_queue->rq_buffer_size = cpu_to_le16(val); 213fc831825SYuval Mintz if (p_params->is_target) { 214fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 215fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1); 216fc831825SYuval Mintz if (p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA]) 217fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 218fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1); 219fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 220fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1); 221fc831825SYuval Mintz } else { 222fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 223fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1); 224fc831825SYuval Mintz } 225fc831825SYuval Mintz p_ramrod->tcp_init.two_msl_timer = cpu_to_le32(p_params->two_msl_timer); 226fc831825SYuval Mintz val = p_params->tx_sws_timer; 227fc831825SYuval Mintz p_ramrod->tcp_init.tx_sws_timer = cpu_to_le16(val); 228fc831825SYuval Mintz p_ramrod->tcp_init.maxfinrt = p_params->max_fin_rt; 229fc831825SYuval Mintz 230fc831825SYuval Mintz p_hwfn->p_iscsi_info->event_context = event_context; 231fc831825SYuval Mintz p_hwfn->p_iscsi_info->event_cb = async_event_cb; 232fc831825SYuval Mintz 233fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 234fc831825SYuval Mintz } 235fc831825SYuval Mintz 236fc831825SYuval Mintz static int qed_sp_iscsi_conn_offload(struct qed_hwfn *p_hwfn, 237fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 238fc831825SYuval Mintz enum spq_mode comp_mode, 239fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 240fc831825SYuval Mintz { 241fc831825SYuval Mintz struct iscsi_spe_conn_offload *p_ramrod = NULL; 242fc831825SYuval Mintz struct tcp_offload_params_opt2 *p_tcp2 = NULL; 243fc831825SYuval Mintz struct tcp_offload_params *p_tcp = NULL; 244fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 245fc831825SYuval Mintz struct qed_sp_init_data init_data; 246fc831825SYuval Mintz union qed_qm_pq_params pq_params; 247fc831825SYuval Mintz u16 pq0_id = 0, pq1_id = 0; 248fc831825SYuval Mintz dma_addr_t r2tq_pbl_addr; 249fc831825SYuval Mintz dma_addr_t xhq_pbl_addr; 250fc831825SYuval Mintz dma_addr_t uhq_pbl_addr; 251fc831825SYuval Mintz int rc = 0; 252fc831825SYuval Mintz u32 dval; 253fc831825SYuval Mintz u16 wval; 254fc831825SYuval Mintz u8 i; 255fc831825SYuval Mintz u16 *p; 256fc831825SYuval Mintz 257fc831825SYuval Mintz /* Get SPQ entry */ 258fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 259fc831825SYuval Mintz init_data.cid = p_conn->icid; 260fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 261fc831825SYuval Mintz init_data.comp_mode = comp_mode; 262fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 263fc831825SYuval Mintz 264fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 265fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN, 266fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 267fc831825SYuval Mintz if (rc) 268fc831825SYuval Mintz return rc; 269fc831825SYuval Mintz 270fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_offload; 271fc831825SYuval Mintz 272fc831825SYuval Mintz /* Transmission PQ is the first of the PF */ 273fc831825SYuval Mintz memset(&pq_params, 0, sizeof(pq_params)); 274fc831825SYuval Mintz pq0_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params); 275fc831825SYuval Mintz p_conn->physical_q0 = cpu_to_le16(pq0_id); 276fc831825SYuval Mintz p_ramrod->iscsi.physical_q0 = cpu_to_le16(pq0_id); 277fc831825SYuval Mintz 278fc831825SYuval Mintz /* iSCSI Pure-ACK PQ */ 279fc831825SYuval Mintz pq_params.iscsi.q_idx = 1; 280fc831825SYuval Mintz pq1_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params); 281fc831825SYuval Mintz p_conn->physical_q1 = cpu_to_le16(pq1_id); 282fc831825SYuval Mintz p_ramrod->iscsi.physical_q1 = cpu_to_le16(pq1_id); 283fc831825SYuval Mintz 284fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN; 285fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, 286fc831825SYuval Mintz p_conn->layer_code); 287fc831825SYuval Mintz 288fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 289fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 290fc831825SYuval Mintz 291fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.sq_pbl_addr, p_conn->sq_pbl_addr); 292fc831825SYuval Mintz 293fc831825SYuval Mintz r2tq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->r2tq); 294fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.r2tq_pbl_addr, r2tq_pbl_addr); 295fc831825SYuval Mintz 296fc831825SYuval Mintz xhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->xhq); 297fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.xhq_pbl_addr, xhq_pbl_addr); 298fc831825SYuval Mintz 299fc831825SYuval Mintz uhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->uhq); 300fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.uhq_pbl_addr, uhq_pbl_addr); 301fc831825SYuval Mintz 302fc831825SYuval Mintz p_ramrod->iscsi.initial_ack = cpu_to_le32(p_conn->initial_ack); 303fc831825SYuval Mintz p_ramrod->iscsi.flags = p_conn->offl_flags; 304fc831825SYuval Mintz p_ramrod->iscsi.default_cq = p_conn->default_cq; 305fc831825SYuval Mintz p_ramrod->iscsi.stat_sn = cpu_to_le32(p_conn->stat_sn); 306fc831825SYuval Mintz 307fc831825SYuval Mintz if (!GET_FIELD(p_ramrod->iscsi.flags, 308fc831825SYuval Mintz ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B)) { 309fc831825SYuval Mintz p_tcp = &p_ramrod->tcp; 310fc831825SYuval Mintz 311fc831825SYuval Mintz p = (u16 *)p_conn->local_mac; 312fc831825SYuval Mintz p_tcp->local_mac_addr_hi = swab16(get_unaligned(p)); 313fc831825SYuval Mintz p_tcp->local_mac_addr_mid = swab16(get_unaligned(p + 1)); 314fc831825SYuval Mintz p_tcp->local_mac_addr_lo = swab16(get_unaligned(p + 2)); 315fc831825SYuval Mintz 316fc831825SYuval Mintz p = (u16 *)p_conn->remote_mac; 317fc831825SYuval Mintz p_tcp->remote_mac_addr_hi = swab16(get_unaligned(p)); 318fc831825SYuval Mintz p_tcp->remote_mac_addr_mid = swab16(get_unaligned(p + 1)); 319fc831825SYuval Mintz p_tcp->remote_mac_addr_lo = swab16(get_unaligned(p + 2)); 320fc831825SYuval Mintz 321fc831825SYuval Mintz p_tcp->vlan_id = cpu_to_le16(p_conn->vlan_id); 322fc831825SYuval Mintz 323fc831825SYuval Mintz p_tcp->flags = p_conn->tcp_flags; 324fc831825SYuval Mintz p_tcp->ip_version = p_conn->ip_version; 325fc831825SYuval Mintz for (i = 0; i < 4; i++) { 326fc831825SYuval Mintz dval = p_conn->remote_ip[i]; 327fc831825SYuval Mintz p_tcp->remote_ip[i] = cpu_to_le32(dval); 328fc831825SYuval Mintz dval = p_conn->local_ip[i]; 329fc831825SYuval Mintz p_tcp->local_ip[i] = cpu_to_le32(dval); 330fc831825SYuval Mintz } 331fc831825SYuval Mintz p_tcp->ka_max_probe_cnt = p_conn->ka_max_probe_cnt; 332fc831825SYuval Mintz p_tcp->dup_ack_theshold = p_conn->dup_ack_theshold; 333fc831825SYuval Mintz 334fc831825SYuval Mintz p_tcp->rcv_next = cpu_to_le32(p_conn->rcv_next); 335fc831825SYuval Mintz p_tcp->snd_una = cpu_to_le32(p_conn->snd_una); 336fc831825SYuval Mintz p_tcp->snd_next = cpu_to_le32(p_conn->snd_next); 337fc831825SYuval Mintz p_tcp->snd_max = cpu_to_le32(p_conn->snd_max); 338fc831825SYuval Mintz p_tcp->snd_wnd = cpu_to_le32(p_conn->snd_wnd); 339fc831825SYuval Mintz p_tcp->rcv_wnd = cpu_to_le32(p_conn->rcv_wnd); 340fc831825SYuval Mintz p_tcp->snd_wl1 = cpu_to_le32(p_conn->snd_wl1); 341fc831825SYuval Mintz p_tcp->cwnd = cpu_to_le32(p_conn->cwnd); 342fc831825SYuval Mintz p_tcp->ss_thresh = cpu_to_le32(p_conn->ss_thresh); 343fc831825SYuval Mintz p_tcp->srtt = cpu_to_le16(p_conn->srtt); 344fc831825SYuval Mintz p_tcp->rtt_var = cpu_to_le16(p_conn->rtt_var); 345fc831825SYuval Mintz p_tcp->ts_time = cpu_to_le32(p_conn->ts_time); 346fc831825SYuval Mintz p_tcp->ts_recent = cpu_to_le32(p_conn->ts_recent); 347fc831825SYuval Mintz p_tcp->ts_recent_age = cpu_to_le32(p_conn->ts_recent_age); 348fc831825SYuval Mintz p_tcp->total_rt = cpu_to_le32(p_conn->total_rt); 349fc831825SYuval Mintz dval = p_conn->ka_timeout_delta; 350fc831825SYuval Mintz p_tcp->ka_timeout_delta = cpu_to_le32(dval); 351fc831825SYuval Mintz dval = p_conn->rt_timeout_delta; 352fc831825SYuval Mintz p_tcp->rt_timeout_delta = cpu_to_le32(dval); 353fc831825SYuval Mintz p_tcp->dup_ack_cnt = p_conn->dup_ack_cnt; 354fc831825SYuval Mintz p_tcp->snd_wnd_probe_cnt = p_conn->snd_wnd_probe_cnt; 355fc831825SYuval Mintz p_tcp->ka_probe_cnt = p_conn->ka_probe_cnt; 356fc831825SYuval Mintz p_tcp->rt_cnt = p_conn->rt_cnt; 357fc831825SYuval Mintz p_tcp->flow_label = cpu_to_le32(p_conn->flow_label); 358fc831825SYuval Mintz p_tcp->ka_timeout = cpu_to_le32(p_conn->ka_timeout); 359fc831825SYuval Mintz p_tcp->ka_interval = cpu_to_le32(p_conn->ka_interval); 360fc831825SYuval Mintz p_tcp->max_rt_time = cpu_to_le32(p_conn->max_rt_time); 361fc831825SYuval Mintz dval = p_conn->initial_rcv_wnd; 362fc831825SYuval Mintz p_tcp->initial_rcv_wnd = cpu_to_le32(dval); 363fc831825SYuval Mintz p_tcp->ttl = p_conn->ttl; 364fc831825SYuval Mintz p_tcp->tos_or_tc = p_conn->tos_or_tc; 365fc831825SYuval Mintz p_tcp->remote_port = cpu_to_le16(p_conn->remote_port); 366fc831825SYuval Mintz p_tcp->local_port = cpu_to_le16(p_conn->local_port); 367fc831825SYuval Mintz p_tcp->mss = cpu_to_le16(p_conn->mss); 368fc831825SYuval Mintz p_tcp->snd_wnd_scale = p_conn->snd_wnd_scale; 369fc831825SYuval Mintz p_tcp->rcv_wnd_scale = p_conn->rcv_wnd_scale; 370fc831825SYuval Mintz dval = p_conn->ts_ticks_per_second; 371fc831825SYuval Mintz p_tcp->ts_ticks_per_second = cpu_to_le32(dval); 372fc831825SYuval Mintz wval = p_conn->da_timeout_value; 373fc831825SYuval Mintz p_tcp->da_timeout_value = cpu_to_le16(wval); 374fc831825SYuval Mintz p_tcp->ack_frequency = p_conn->ack_frequency; 375fc831825SYuval Mintz p_tcp->connect_mode = p_conn->connect_mode; 376fc831825SYuval Mintz } else { 377fc831825SYuval Mintz p_tcp2 = 378fc831825SYuval Mintz &((struct iscsi_spe_conn_offload_option2 *)p_ramrod)->tcp; 379fc831825SYuval Mintz 380fc831825SYuval Mintz p = (u16 *)p_conn->local_mac; 381fc831825SYuval Mintz p_tcp2->local_mac_addr_hi = swab16(get_unaligned(p)); 382fc831825SYuval Mintz p_tcp2->local_mac_addr_mid = swab16(get_unaligned(p + 1)); 383fc831825SYuval Mintz p_tcp2->local_mac_addr_lo = swab16(get_unaligned(p + 2)); 384fc831825SYuval Mintz 385fc831825SYuval Mintz p = (u16 *)p_conn->remote_mac; 386fc831825SYuval Mintz p_tcp2->remote_mac_addr_hi = swab16(get_unaligned(p)); 387fc831825SYuval Mintz p_tcp2->remote_mac_addr_mid = swab16(get_unaligned(p + 1)); 388fc831825SYuval Mintz p_tcp2->remote_mac_addr_lo = swab16(get_unaligned(p + 2)); 389fc831825SYuval Mintz 390fc831825SYuval Mintz p_tcp2->vlan_id = cpu_to_le16(p_conn->vlan_id); 391fc831825SYuval Mintz p_tcp2->flags = p_conn->tcp_flags; 392fc831825SYuval Mintz 393fc831825SYuval Mintz p_tcp2->ip_version = p_conn->ip_version; 394fc831825SYuval Mintz for (i = 0; i < 4; i++) { 395fc831825SYuval Mintz dval = p_conn->remote_ip[i]; 396fc831825SYuval Mintz p_tcp2->remote_ip[i] = cpu_to_le32(dval); 397fc831825SYuval Mintz dval = p_conn->local_ip[i]; 398fc831825SYuval Mintz p_tcp2->local_ip[i] = cpu_to_le32(dval); 399fc831825SYuval Mintz } 400fc831825SYuval Mintz 401fc831825SYuval Mintz p_tcp2->flow_label = cpu_to_le32(p_conn->flow_label); 402fc831825SYuval Mintz p_tcp2->ttl = p_conn->ttl; 403fc831825SYuval Mintz p_tcp2->tos_or_tc = p_conn->tos_or_tc; 404fc831825SYuval Mintz p_tcp2->remote_port = cpu_to_le16(p_conn->remote_port); 405fc831825SYuval Mintz p_tcp2->local_port = cpu_to_le16(p_conn->local_port); 406fc831825SYuval Mintz p_tcp2->mss = cpu_to_le16(p_conn->mss); 407fc831825SYuval Mintz p_tcp2->rcv_wnd_scale = p_conn->rcv_wnd_scale; 408fc831825SYuval Mintz p_tcp2->connect_mode = p_conn->connect_mode; 409fc831825SYuval Mintz wval = p_conn->syn_ip_payload_length; 410fc831825SYuval Mintz p_tcp2->syn_ip_payload_length = cpu_to_le16(wval); 411fc831825SYuval Mintz p_tcp2->syn_phy_addr_lo = DMA_LO_LE(p_conn->syn_phy_addr); 412fc831825SYuval Mintz p_tcp2->syn_phy_addr_hi = DMA_HI_LE(p_conn->syn_phy_addr); 413fc831825SYuval Mintz } 414fc831825SYuval Mintz 415fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 416fc831825SYuval Mintz } 417fc831825SYuval Mintz 418fc831825SYuval Mintz static int qed_sp_iscsi_conn_update(struct qed_hwfn *p_hwfn, 419fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 420fc831825SYuval Mintz enum spq_mode comp_mode, 421fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 422fc831825SYuval Mintz { 423fc831825SYuval Mintz struct iscsi_conn_update_ramrod_params *p_ramrod = NULL; 424fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 425fc831825SYuval Mintz struct qed_sp_init_data init_data; 426fc831825SYuval Mintz int rc = -EINVAL; 427fc831825SYuval Mintz u32 dval; 428fc831825SYuval Mintz 429fc831825SYuval Mintz /* Get SPQ entry */ 430fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 431fc831825SYuval Mintz init_data.cid = p_conn->icid; 432fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 433fc831825SYuval Mintz init_data.comp_mode = comp_mode; 434fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 435fc831825SYuval Mintz 436fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 437fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_UPDATE_CONN, 438fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 439fc831825SYuval Mintz if (rc) 440fc831825SYuval Mintz return rc; 441fc831825SYuval Mintz 442fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_update; 443fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_UPDATE_CONN; 444fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, 445fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 446fc831825SYuval Mintz 447fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 448fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 449fc831825SYuval Mintz p_ramrod->flags = p_conn->update_flag; 450fc831825SYuval Mintz p_ramrod->max_seq_size = cpu_to_le32(p_conn->max_seq_size); 451fc831825SYuval Mintz dval = p_conn->max_recv_pdu_length; 452fc831825SYuval Mintz p_ramrod->max_recv_pdu_length = cpu_to_le32(dval); 453fc831825SYuval Mintz dval = p_conn->max_send_pdu_length; 454fc831825SYuval Mintz p_ramrod->max_send_pdu_length = cpu_to_le32(dval); 455fc831825SYuval Mintz dval = p_conn->first_seq_length; 456fc831825SYuval Mintz p_ramrod->first_seq_length = cpu_to_le32(dval); 457fc831825SYuval Mintz p_ramrod->exp_stat_sn = cpu_to_le32(p_conn->exp_stat_sn); 458fc831825SYuval Mintz 459fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 460fc831825SYuval Mintz } 461fc831825SYuval Mintz 462fc831825SYuval Mintz static int qed_sp_iscsi_conn_terminate(struct qed_hwfn *p_hwfn, 463fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 464fc831825SYuval Mintz enum spq_mode comp_mode, 465fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 466fc831825SYuval Mintz { 467fc831825SYuval Mintz struct iscsi_spe_conn_termination *p_ramrod = NULL; 468fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 469fc831825SYuval Mintz struct qed_sp_init_data init_data; 470fc831825SYuval Mintz int rc = -EINVAL; 471fc831825SYuval Mintz 472fc831825SYuval Mintz /* Get SPQ entry */ 473fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 474fc831825SYuval Mintz init_data.cid = p_conn->icid; 475fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 476fc831825SYuval Mintz init_data.comp_mode = comp_mode; 477fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 478fc831825SYuval Mintz 479fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 480fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_TERMINATION_CONN, 481fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 482fc831825SYuval Mintz if (rc) 483fc831825SYuval Mintz return rc; 484fc831825SYuval Mintz 485fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_terminate; 486fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_TERMINATION_CONN; 487fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, 488fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 489fc831825SYuval Mintz 490fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 491fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 492fc831825SYuval Mintz p_ramrod->abortive = p_conn->abortive_dsconnect; 493fc831825SYuval Mintz 494fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->query_params_addr, 495fc831825SYuval Mintz p_conn->tcp_upload_params_phys_addr); 496fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->queue_cnts_addr, p_conn->queue_cnts_phys_addr); 497fc831825SYuval Mintz 498fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 499fc831825SYuval Mintz } 500fc831825SYuval Mintz 501fc831825SYuval Mintz static int qed_sp_iscsi_conn_clear_sq(struct qed_hwfn *p_hwfn, 502fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 503fc831825SYuval Mintz enum spq_mode comp_mode, 504fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 505fc831825SYuval Mintz { 506fc831825SYuval Mintz struct iscsi_slow_path_hdr *p_ramrod = NULL; 507fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 508fc831825SYuval Mintz struct qed_sp_init_data init_data; 509fc831825SYuval Mintz int rc = -EINVAL; 510fc831825SYuval Mintz 511fc831825SYuval Mintz /* Get SPQ entry */ 512fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 513fc831825SYuval Mintz init_data.cid = p_conn->icid; 514fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 515fc831825SYuval Mintz init_data.comp_mode = comp_mode; 516fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 517fc831825SYuval Mintz 518fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 519fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_CLEAR_SQ, 520fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 521fc831825SYuval Mintz if (rc) 522fc831825SYuval Mintz return rc; 523fc831825SYuval Mintz 524fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_empty; 525fc831825SYuval Mintz p_ramrod->op_code = ISCSI_RAMROD_CMD_ID_CLEAR_SQ; 526fc831825SYuval Mintz SET_FIELD(p_ramrod->flags, 527fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 528fc831825SYuval Mintz 529fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 530fc831825SYuval Mintz } 531fc831825SYuval Mintz 532fc831825SYuval Mintz static int qed_sp_iscsi_func_stop(struct qed_hwfn *p_hwfn, 533fc831825SYuval Mintz enum spq_mode comp_mode, 534fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 535fc831825SYuval Mintz { 536fc831825SYuval Mintz struct iscsi_spe_func_dstry *p_ramrod = NULL; 537fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 538fc831825SYuval Mintz struct qed_sp_init_data init_data; 539fc831825SYuval Mintz int rc = 0; 540fc831825SYuval Mintz 541fc831825SYuval Mintz /* Get SPQ entry */ 542fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 543fc831825SYuval Mintz init_data.cid = qed_spq_get_cid(p_hwfn); 544fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 545fc831825SYuval Mintz init_data.comp_mode = comp_mode; 546fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 547fc831825SYuval Mintz 548fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 549fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_DESTROY_FUNC, 550fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 551fc831825SYuval Mintz if (rc) 552fc831825SYuval Mintz return rc; 553fc831825SYuval Mintz 554fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_destroy; 555fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_DESTROY_FUNC; 556fc831825SYuval Mintz 557fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 558fc831825SYuval Mintz } 559fc831825SYuval Mintz 560fc831825SYuval Mintz static void __iomem *qed_iscsi_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid) 561fc831825SYuval Mintz { 562fc831825SYuval Mintz return (u8 __iomem *)p_hwfn->doorbells + 563fc831825SYuval Mintz qed_db_addr(cid, DQ_DEMS_LEGACY); 564fc831825SYuval Mintz } 565fc831825SYuval Mintz 566fc831825SYuval Mintz static void __iomem *qed_iscsi_get_primary_bdq_prod(struct qed_hwfn *p_hwfn, 567fc831825SYuval Mintz u8 bdq_id) 568fc831825SYuval Mintz { 569fc831825SYuval Mintz u8 bdq_function_id = ISCSI_BDQ_ID(p_hwfn->port_id); 570fc831825SYuval Mintz 571fc831825SYuval Mintz return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_MSDM_RAM + 572fc831825SYuval Mintz MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, 573fc831825SYuval Mintz bdq_id); 574fc831825SYuval Mintz } 575fc831825SYuval Mintz 576fc831825SYuval Mintz static void __iomem *qed_iscsi_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn, 577fc831825SYuval Mintz u8 bdq_id) 578fc831825SYuval Mintz { 579fc831825SYuval Mintz u8 bdq_function_id = ISCSI_BDQ_ID(p_hwfn->port_id); 580fc831825SYuval Mintz 581fc831825SYuval Mintz return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_TSDM_RAM + 582fc831825SYuval Mintz TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, 583fc831825SYuval Mintz bdq_id); 584fc831825SYuval Mintz } 585fc831825SYuval Mintz 586fc831825SYuval Mintz static int qed_iscsi_setup_connection(struct qed_hwfn *p_hwfn, 587fc831825SYuval Mintz struct qed_iscsi_conn *p_conn) 588fc831825SYuval Mintz { 589fc831825SYuval Mintz if (!p_conn->queue_cnts_virt_addr) 590fc831825SYuval Mintz goto nomem; 591fc831825SYuval Mintz memset(p_conn->queue_cnts_virt_addr, 0, 592fc831825SYuval Mintz sizeof(*p_conn->queue_cnts_virt_addr)); 593fc831825SYuval Mintz 594fc831825SYuval Mintz if (!p_conn->tcp_upload_params_virt_addr) 595fc831825SYuval Mintz goto nomem; 596fc831825SYuval Mintz memset(p_conn->tcp_upload_params_virt_addr, 0, 597fc831825SYuval Mintz sizeof(*p_conn->tcp_upload_params_virt_addr)); 598fc831825SYuval Mintz 599fc831825SYuval Mintz if (!p_conn->r2tq.p_virt_addr) 600fc831825SYuval Mintz goto nomem; 601fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->r2tq); 602fc831825SYuval Mintz 603fc831825SYuval Mintz if (!p_conn->uhq.p_virt_addr) 604fc831825SYuval Mintz goto nomem; 605fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->uhq); 606fc831825SYuval Mintz 607fc831825SYuval Mintz if (!p_conn->xhq.p_virt_addr) 608fc831825SYuval Mintz goto nomem; 609fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->xhq); 610fc831825SYuval Mintz 611fc831825SYuval Mintz return 0; 612fc831825SYuval Mintz nomem: 613fc831825SYuval Mintz return -ENOMEM; 614fc831825SYuval Mintz } 615fc831825SYuval Mintz 616fc831825SYuval Mintz static int qed_iscsi_allocate_connection(struct qed_hwfn *p_hwfn, 617fc831825SYuval Mintz struct qed_iscsi_conn **p_out_conn) 618fc831825SYuval Mintz { 619fc831825SYuval Mintz u16 uhq_num_elements = 0, xhq_num_elements = 0, r2tq_num_elements = 0; 620fc831825SYuval Mintz struct scsi_terminate_extra_params *p_q_cnts = NULL; 621fc831825SYuval Mintz struct qed_iscsi_pf_params *p_params = NULL; 622fc831825SYuval Mintz struct tcp_upload_params *p_tcp = NULL; 623fc831825SYuval Mintz struct qed_iscsi_conn *p_conn = NULL; 624fc831825SYuval Mintz int rc = 0; 625fc831825SYuval Mintz 626fc831825SYuval Mintz /* Try finding a free connection that can be used */ 627fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 628fc831825SYuval Mintz if (!list_empty(&p_hwfn->p_iscsi_info->free_list)) 629fc831825SYuval Mintz p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list, 630fc831825SYuval Mintz struct qed_iscsi_conn, list_entry); 631fc831825SYuval Mintz if (p_conn) { 632fc831825SYuval Mintz list_del(&p_conn->list_entry); 633fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 634fc831825SYuval Mintz *p_out_conn = p_conn; 635fc831825SYuval Mintz return 0; 636fc831825SYuval Mintz } 637fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 638fc831825SYuval Mintz 639fc831825SYuval Mintz /* Need to allocate a new connection */ 640fc831825SYuval Mintz p_params = &p_hwfn->pf_params.iscsi_pf_params; 641fc831825SYuval Mintz 642fc831825SYuval Mintz p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL); 643fc831825SYuval Mintz if (!p_conn) 644fc831825SYuval Mintz return -ENOMEM; 645fc831825SYuval Mintz 646fc831825SYuval Mintz p_q_cnts = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 647fc831825SYuval Mintz sizeof(*p_q_cnts), 648fc831825SYuval Mintz &p_conn->queue_cnts_phys_addr, 649fc831825SYuval Mintz GFP_KERNEL); 650fc831825SYuval Mintz if (!p_q_cnts) 651fc831825SYuval Mintz goto nomem_queue_cnts_param; 652fc831825SYuval Mintz p_conn->queue_cnts_virt_addr = p_q_cnts; 653fc831825SYuval Mintz 654fc831825SYuval Mintz p_tcp = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 655fc831825SYuval Mintz sizeof(*p_tcp), 656fc831825SYuval Mintz &p_conn->tcp_upload_params_phys_addr, 657fc831825SYuval Mintz GFP_KERNEL); 658fc831825SYuval Mintz if (!p_tcp) 659fc831825SYuval Mintz goto nomem_upload_param; 660fc831825SYuval Mintz p_conn->tcp_upload_params_virt_addr = p_tcp; 661fc831825SYuval Mintz 662fc831825SYuval Mintz r2tq_num_elements = p_params->num_r2tq_pages_in_ring * 663fc831825SYuval Mintz QED_CHAIN_PAGE_SIZE / 0x80; 664fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 665fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 666fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 667fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 668fc831825SYuval Mintz r2tq_num_elements, 0x80, &p_conn->r2tq); 669fc831825SYuval Mintz if (rc) 670fc831825SYuval Mintz goto nomem_r2tq; 671fc831825SYuval Mintz 672fc831825SYuval Mintz uhq_num_elements = p_params->num_uhq_pages_in_ring * 673fc831825SYuval Mintz QED_CHAIN_PAGE_SIZE / sizeof(struct iscsi_uhqe); 674fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 675fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 676fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 677fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 678fc831825SYuval Mintz uhq_num_elements, 679fc831825SYuval Mintz sizeof(struct iscsi_uhqe), &p_conn->uhq); 680fc831825SYuval Mintz if (rc) 681fc831825SYuval Mintz goto nomem_uhq; 682fc831825SYuval Mintz 683fc831825SYuval Mintz xhq_num_elements = uhq_num_elements; 684fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 685fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 686fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 687fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 688fc831825SYuval Mintz xhq_num_elements, 689fc831825SYuval Mintz sizeof(struct iscsi_xhqe), &p_conn->xhq); 690fc831825SYuval Mintz if (rc) 691fc831825SYuval Mintz goto nomem; 692fc831825SYuval Mintz 693fc831825SYuval Mintz p_conn->free_on_delete = true; 694fc831825SYuval Mintz *p_out_conn = p_conn; 695fc831825SYuval Mintz return 0; 696fc831825SYuval Mintz 697fc831825SYuval Mintz nomem: 698fc831825SYuval Mintz qed_chain_free(p_hwfn->cdev, &p_conn->uhq); 699fc831825SYuval Mintz nomem_uhq: 700fc831825SYuval Mintz qed_chain_free(p_hwfn->cdev, &p_conn->r2tq); 701fc831825SYuval Mintz nomem_r2tq: 702fc831825SYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 703fc831825SYuval Mintz sizeof(struct tcp_upload_params), 704fc831825SYuval Mintz p_conn->tcp_upload_params_virt_addr, 705fc831825SYuval Mintz p_conn->tcp_upload_params_phys_addr); 706fc831825SYuval Mintz nomem_upload_param: 707fc831825SYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 708fc831825SYuval Mintz sizeof(struct scsi_terminate_extra_params), 709fc831825SYuval Mintz p_conn->queue_cnts_virt_addr, 710fc831825SYuval Mintz p_conn->queue_cnts_phys_addr); 711fc831825SYuval Mintz nomem_queue_cnts_param: 712fc831825SYuval Mintz kfree(p_conn); 713fc831825SYuval Mintz 714fc831825SYuval Mintz return -ENOMEM; 715fc831825SYuval Mintz } 716fc831825SYuval Mintz 717fc831825SYuval Mintz static int qed_iscsi_acquire_connection(struct qed_hwfn *p_hwfn, 718fc831825SYuval Mintz struct qed_iscsi_conn *p_in_conn, 719fc831825SYuval Mintz struct qed_iscsi_conn **p_out_conn) 720fc831825SYuval Mintz { 721fc831825SYuval Mintz struct qed_iscsi_conn *p_conn = NULL; 722fc831825SYuval Mintz int rc = 0; 723fc831825SYuval Mintz u32 icid; 724fc831825SYuval Mintz 725fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 726fc831825SYuval Mintz rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_ISCSI, &icid); 727fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 728fc831825SYuval Mintz if (rc) 729fc831825SYuval Mintz return rc; 730fc831825SYuval Mintz 731fc831825SYuval Mintz /* Use input connection or allocate a new one */ 732fc831825SYuval Mintz if (p_in_conn) 733fc831825SYuval Mintz p_conn = p_in_conn; 734fc831825SYuval Mintz else 735fc831825SYuval Mintz rc = qed_iscsi_allocate_connection(p_hwfn, &p_conn); 736fc831825SYuval Mintz 737fc831825SYuval Mintz if (!rc) 738fc831825SYuval Mintz rc = qed_iscsi_setup_connection(p_hwfn, p_conn); 739fc831825SYuval Mintz 740fc831825SYuval Mintz if (rc) { 741fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 742fc831825SYuval Mintz qed_cxt_release_cid(p_hwfn, icid); 743fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 744fc831825SYuval Mintz return rc; 745fc831825SYuval Mintz } 746fc831825SYuval Mintz 747fc831825SYuval Mintz p_conn->icid = icid; 748fc831825SYuval Mintz p_conn->conn_id = (u16)icid; 749fc831825SYuval Mintz p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid; 750fc831825SYuval Mintz 751fc831825SYuval Mintz *p_out_conn = p_conn; 752fc831825SYuval Mintz 753fc831825SYuval Mintz return rc; 754fc831825SYuval Mintz } 755fc831825SYuval Mintz 756fc831825SYuval Mintz static void qed_iscsi_release_connection(struct qed_hwfn *p_hwfn, 757fc831825SYuval Mintz struct qed_iscsi_conn *p_conn) 758fc831825SYuval Mintz { 759fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 760fc831825SYuval Mintz list_add_tail(&p_conn->list_entry, &p_hwfn->p_iscsi_info->free_list); 761fc831825SYuval Mintz qed_cxt_release_cid(p_hwfn, p_conn->icid); 762fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 763fc831825SYuval Mintz } 764fc831825SYuval Mintz 765fc831825SYuval Mintz struct qed_iscsi_info *qed_iscsi_alloc(struct qed_hwfn *p_hwfn) 766fc831825SYuval Mintz { 767fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info; 768fc831825SYuval Mintz 769fc831825SYuval Mintz p_iscsi_info = kzalloc(sizeof(*p_iscsi_info), GFP_KERNEL); 770fc831825SYuval Mintz if (!p_iscsi_info) 771fc831825SYuval Mintz return NULL; 772fc831825SYuval Mintz 773fc831825SYuval Mintz INIT_LIST_HEAD(&p_iscsi_info->free_list); 774fc831825SYuval Mintz return p_iscsi_info; 775fc831825SYuval Mintz } 776fc831825SYuval Mintz 777fc831825SYuval Mintz void qed_iscsi_setup(struct qed_hwfn *p_hwfn, 778fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info) 779fc831825SYuval Mintz { 780fc831825SYuval Mintz spin_lock_init(&p_iscsi_info->lock); 781fc831825SYuval Mintz } 782fc831825SYuval Mintz 783fc831825SYuval Mintz void qed_iscsi_free(struct qed_hwfn *p_hwfn, 784fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info) 785fc831825SYuval Mintz { 786fc831825SYuval Mintz kfree(p_iscsi_info); 787fc831825SYuval Mintz } 788fc831825SYuval Mintz 789fc831825SYuval Mintz static void _qed_iscsi_get_tstats(struct qed_hwfn *p_hwfn, 790fc831825SYuval Mintz struct qed_ptt *p_ptt, 791fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 792fc831825SYuval Mintz { 793fc831825SYuval Mintz struct tstorm_iscsi_stats_drv tstats; 794fc831825SYuval Mintz u32 tstats_addr; 795fc831825SYuval Mintz 796fc831825SYuval Mintz memset(&tstats, 0, sizeof(tstats)); 797fc831825SYuval Mintz tstats_addr = BAR0_MAP_REG_TSDM_RAM + 798fc831825SYuval Mintz TSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 799fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats)); 800fc831825SYuval Mintz 801fc831825SYuval Mintz p_stats->iscsi_rx_bytes_cnt = 802fc831825SYuval Mintz HILO_64_REGPAIR(tstats.iscsi_rx_bytes_cnt); 803fc831825SYuval Mintz p_stats->iscsi_rx_packet_cnt = 804fc831825SYuval Mintz HILO_64_REGPAIR(tstats.iscsi_rx_packet_cnt); 805fc831825SYuval Mintz p_stats->iscsi_cmdq_threshold_cnt = 806fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_cmdq_threshold_cnt); 807fc831825SYuval Mintz p_stats->iscsi_rq_threshold_cnt = 808fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_rq_threshold_cnt); 809fc831825SYuval Mintz p_stats->iscsi_immq_threshold_cnt = 810fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_immq_threshold_cnt); 811fc831825SYuval Mintz } 812fc831825SYuval Mintz 813fc831825SYuval Mintz static void _qed_iscsi_get_mstats(struct qed_hwfn *p_hwfn, 814fc831825SYuval Mintz struct qed_ptt *p_ptt, 815fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 816fc831825SYuval Mintz { 817fc831825SYuval Mintz struct mstorm_iscsi_stats_drv mstats; 818fc831825SYuval Mintz u32 mstats_addr; 819fc831825SYuval Mintz 820fc831825SYuval Mintz memset(&mstats, 0, sizeof(mstats)); 821fc831825SYuval Mintz mstats_addr = BAR0_MAP_REG_MSDM_RAM + 822fc831825SYuval Mintz MSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 823fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &mstats, mstats_addr, sizeof(mstats)); 824fc831825SYuval Mintz 825fc831825SYuval Mintz p_stats->iscsi_rx_dropped_pdus_task_not_valid = 826fc831825SYuval Mintz HILO_64_REGPAIR(mstats.iscsi_rx_dropped_pdus_task_not_valid); 827fc831825SYuval Mintz } 828fc831825SYuval Mintz 829fc831825SYuval Mintz static void _qed_iscsi_get_ustats(struct qed_hwfn *p_hwfn, 830fc831825SYuval Mintz struct qed_ptt *p_ptt, 831fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 832fc831825SYuval Mintz { 833fc831825SYuval Mintz struct ustorm_iscsi_stats_drv ustats; 834fc831825SYuval Mintz u32 ustats_addr; 835fc831825SYuval Mintz 836fc831825SYuval Mintz memset(&ustats, 0, sizeof(ustats)); 837fc831825SYuval Mintz ustats_addr = BAR0_MAP_REG_USDM_RAM + 838fc831825SYuval Mintz USTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 839fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &ustats, ustats_addr, sizeof(ustats)); 840fc831825SYuval Mintz 841fc831825SYuval Mintz p_stats->iscsi_rx_data_pdu_cnt = 842fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_data_pdu_cnt); 843fc831825SYuval Mintz p_stats->iscsi_rx_r2t_pdu_cnt = 844fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_r2t_pdu_cnt); 845fc831825SYuval Mintz p_stats->iscsi_rx_total_pdu_cnt = 846fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_total_pdu_cnt); 847fc831825SYuval Mintz } 848fc831825SYuval Mintz 849fc831825SYuval Mintz static void _qed_iscsi_get_xstats(struct qed_hwfn *p_hwfn, 850fc831825SYuval Mintz struct qed_ptt *p_ptt, 851fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 852fc831825SYuval Mintz { 853fc831825SYuval Mintz struct xstorm_iscsi_stats_drv xstats; 854fc831825SYuval Mintz u32 xstats_addr; 855fc831825SYuval Mintz 856fc831825SYuval Mintz memset(&xstats, 0, sizeof(xstats)); 857fc831825SYuval Mintz xstats_addr = BAR0_MAP_REG_XSDM_RAM + 858fc831825SYuval Mintz XSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 859fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &xstats, xstats_addr, sizeof(xstats)); 860fc831825SYuval Mintz 861fc831825SYuval Mintz p_stats->iscsi_tx_go_to_slow_start_event_cnt = 862fc831825SYuval Mintz HILO_64_REGPAIR(xstats.iscsi_tx_go_to_slow_start_event_cnt); 863fc831825SYuval Mintz p_stats->iscsi_tx_fast_retransmit_event_cnt = 864fc831825SYuval Mintz HILO_64_REGPAIR(xstats.iscsi_tx_fast_retransmit_event_cnt); 865fc831825SYuval Mintz } 866fc831825SYuval Mintz 867fc831825SYuval Mintz static void _qed_iscsi_get_ystats(struct qed_hwfn *p_hwfn, 868fc831825SYuval Mintz struct qed_ptt *p_ptt, 869fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 870fc831825SYuval Mintz { 871fc831825SYuval Mintz struct ystorm_iscsi_stats_drv ystats; 872fc831825SYuval Mintz u32 ystats_addr; 873fc831825SYuval Mintz 874fc831825SYuval Mintz memset(&ystats, 0, sizeof(ystats)); 875fc831825SYuval Mintz ystats_addr = BAR0_MAP_REG_YSDM_RAM + 876fc831825SYuval Mintz YSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 877fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &ystats, ystats_addr, sizeof(ystats)); 878fc831825SYuval Mintz 879fc831825SYuval Mintz p_stats->iscsi_tx_data_pdu_cnt = 880fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_data_pdu_cnt); 881fc831825SYuval Mintz p_stats->iscsi_tx_r2t_pdu_cnt = 882fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_r2t_pdu_cnt); 883fc831825SYuval Mintz p_stats->iscsi_tx_total_pdu_cnt = 884fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_total_pdu_cnt); 885fc831825SYuval Mintz } 886fc831825SYuval Mintz 887fc831825SYuval Mintz static void _qed_iscsi_get_pstats(struct qed_hwfn *p_hwfn, 888fc831825SYuval Mintz struct qed_ptt *p_ptt, 889fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 890fc831825SYuval Mintz { 891fc831825SYuval Mintz struct pstorm_iscsi_stats_drv pstats; 892fc831825SYuval Mintz u32 pstats_addr; 893fc831825SYuval Mintz 894fc831825SYuval Mintz memset(&pstats, 0, sizeof(pstats)); 895fc831825SYuval Mintz pstats_addr = BAR0_MAP_REG_PSDM_RAM + 896fc831825SYuval Mintz PSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 897fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats)); 898fc831825SYuval Mintz 899fc831825SYuval Mintz p_stats->iscsi_tx_bytes_cnt = 900fc831825SYuval Mintz HILO_64_REGPAIR(pstats.iscsi_tx_bytes_cnt); 901fc831825SYuval Mintz p_stats->iscsi_tx_packet_cnt = 902fc831825SYuval Mintz HILO_64_REGPAIR(pstats.iscsi_tx_packet_cnt); 903fc831825SYuval Mintz } 904fc831825SYuval Mintz 905fc831825SYuval Mintz static int qed_iscsi_get_stats(struct qed_hwfn *p_hwfn, 906fc831825SYuval Mintz struct qed_iscsi_stats *stats) 907fc831825SYuval Mintz { 908fc831825SYuval Mintz struct qed_ptt *p_ptt; 909fc831825SYuval Mintz 910fc831825SYuval Mintz memset(stats, 0, sizeof(*stats)); 911fc831825SYuval Mintz 912fc831825SYuval Mintz p_ptt = qed_ptt_acquire(p_hwfn); 913fc831825SYuval Mintz if (!p_ptt) { 914fc831825SYuval Mintz DP_ERR(p_hwfn, "Failed to acquire ptt\n"); 915fc831825SYuval Mintz return -EAGAIN; 916fc831825SYuval Mintz } 917fc831825SYuval Mintz 918fc831825SYuval Mintz _qed_iscsi_get_tstats(p_hwfn, p_ptt, stats); 919fc831825SYuval Mintz _qed_iscsi_get_mstats(p_hwfn, p_ptt, stats); 920fc831825SYuval Mintz _qed_iscsi_get_ustats(p_hwfn, p_ptt, stats); 921fc831825SYuval Mintz 922fc831825SYuval Mintz _qed_iscsi_get_xstats(p_hwfn, p_ptt, stats); 923fc831825SYuval Mintz _qed_iscsi_get_ystats(p_hwfn, p_ptt, stats); 924fc831825SYuval Mintz _qed_iscsi_get_pstats(p_hwfn, p_ptt, stats); 925fc831825SYuval Mintz 926fc831825SYuval Mintz qed_ptt_release(p_hwfn, p_ptt); 927fc831825SYuval Mintz 928fc831825SYuval Mintz return 0; 929fc831825SYuval Mintz } 930fc831825SYuval Mintz 931fc831825SYuval Mintz struct qed_hash_iscsi_con { 932fc831825SYuval Mintz struct hlist_node node; 933fc831825SYuval Mintz struct qed_iscsi_conn *con; 934fc831825SYuval Mintz }; 935fc831825SYuval Mintz 936fc831825SYuval Mintz static int qed_fill_iscsi_dev_info(struct qed_dev *cdev, 937fc831825SYuval Mintz struct qed_dev_iscsi_info *info) 938fc831825SYuval Mintz { 939fc831825SYuval Mintz struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 940fc831825SYuval Mintz 941fc831825SYuval Mintz int rc; 942fc831825SYuval Mintz 943fc831825SYuval Mintz memset(info, 0, sizeof(*info)); 944fc831825SYuval Mintz rc = qed_fill_dev_info(cdev, &info->common); 945fc831825SYuval Mintz 946fc831825SYuval Mintz info->primary_dbq_rq_addr = 947fc831825SYuval Mintz qed_iscsi_get_primary_bdq_prod(hwfn, BDQ_ID_RQ); 948fc831825SYuval Mintz info->secondary_bdq_rq_addr = 949fc831825SYuval Mintz qed_iscsi_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ); 950fc831825SYuval Mintz 951fc831825SYuval Mintz return rc; 952fc831825SYuval Mintz } 953fc831825SYuval Mintz 954fc831825SYuval Mintz static void qed_register_iscsi_ops(struct qed_dev *cdev, 955fc831825SYuval Mintz struct qed_iscsi_cb_ops *ops, void *cookie) 956fc831825SYuval Mintz { 957fc831825SYuval Mintz cdev->protocol_ops.iscsi = ops; 958fc831825SYuval Mintz cdev->ops_cookie = cookie; 959fc831825SYuval Mintz } 960fc831825SYuval Mintz 961fc831825SYuval Mintz static struct qed_hash_iscsi_con *qed_iscsi_get_hash(struct qed_dev *cdev, 962fc831825SYuval Mintz u32 handle) 963fc831825SYuval Mintz { 964fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con = NULL; 965fc831825SYuval Mintz 966fc831825SYuval Mintz if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) 967fc831825SYuval Mintz return NULL; 968fc831825SYuval Mintz 969fc831825SYuval Mintz hash_for_each_possible(cdev->connections, hash_con, node, handle) { 970fc831825SYuval Mintz if (hash_con->con->icid == handle) 971fc831825SYuval Mintz break; 972fc831825SYuval Mintz } 973fc831825SYuval Mintz 974fc831825SYuval Mintz if (!hash_con || (hash_con->con->icid != handle)) 975fc831825SYuval Mintz return NULL; 976fc831825SYuval Mintz 977fc831825SYuval Mintz return hash_con; 978fc831825SYuval Mintz } 979fc831825SYuval Mintz 980fc831825SYuval Mintz static int qed_iscsi_stop(struct qed_dev *cdev) 981fc831825SYuval Mintz { 982fc831825SYuval Mintz int rc; 983fc831825SYuval Mintz 984fc831825SYuval Mintz if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) { 985fc831825SYuval Mintz DP_NOTICE(cdev, "iscsi already stopped\n"); 986fc831825SYuval Mintz return 0; 987fc831825SYuval Mintz } 988fc831825SYuval Mintz 989fc831825SYuval Mintz if (!hash_empty(cdev->connections)) { 990fc831825SYuval Mintz DP_NOTICE(cdev, 991fc831825SYuval Mintz "Can't stop iscsi - not all connections were returned\n"); 992fc831825SYuval Mintz return -EINVAL; 993fc831825SYuval Mintz } 994fc831825SYuval Mintz 995fc831825SYuval Mintz /* Stop the iscsi */ 996fc831825SYuval Mintz rc = qed_sp_iscsi_func_stop(QED_LEADING_HWFN(cdev), 997fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 998fc831825SYuval Mintz cdev->flags &= ~QED_FLAG_STORAGE_STARTED; 999fc831825SYuval Mintz 1000fc831825SYuval Mintz return rc; 1001fc831825SYuval Mintz } 1002fc831825SYuval Mintz 1003fc831825SYuval Mintz static int qed_iscsi_start(struct qed_dev *cdev, 1004fc831825SYuval Mintz struct qed_iscsi_tid *tasks, 1005fc831825SYuval Mintz void *event_context, 1006fc831825SYuval Mintz iscsi_event_cb_t async_event_cb) 1007fc831825SYuval Mintz { 1008fc831825SYuval Mintz int rc; 1009fc831825SYuval Mintz struct qed_tid_mem *tid_info; 1010fc831825SYuval Mintz 1011fc831825SYuval Mintz if (cdev->flags & QED_FLAG_STORAGE_STARTED) { 1012fc831825SYuval Mintz DP_NOTICE(cdev, "iscsi already started;\n"); 1013fc831825SYuval Mintz return 0; 1014fc831825SYuval Mintz } 1015fc831825SYuval Mintz 1016fc831825SYuval Mintz rc = qed_sp_iscsi_func_start(QED_LEADING_HWFN(cdev), 1017fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL, event_context, 1018fc831825SYuval Mintz async_event_cb); 1019fc831825SYuval Mintz if (rc) { 1020fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to start iscsi\n"); 1021fc831825SYuval Mintz return rc; 1022fc831825SYuval Mintz } 1023fc831825SYuval Mintz 1024fc831825SYuval Mintz cdev->flags |= QED_FLAG_STORAGE_STARTED; 1025fc831825SYuval Mintz hash_init(cdev->connections); 1026fc831825SYuval Mintz 1027fc831825SYuval Mintz if (!tasks) 1028fc831825SYuval Mintz return 0; 1029fc831825SYuval Mintz 1030fc831825SYuval Mintz tid_info = kzalloc(sizeof(*tid_info), GFP_KERNEL); 1031fc831825SYuval Mintz 1032fc831825SYuval Mintz if (!tid_info) { 1033fc831825SYuval Mintz qed_iscsi_stop(cdev); 1034fc831825SYuval Mintz return -ENOMEM; 1035fc831825SYuval Mintz } 1036fc831825SYuval Mintz 1037fc831825SYuval Mintz rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), 1038fc831825SYuval Mintz tid_info); 1039fc831825SYuval Mintz if (rc) { 1040fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to gather task information\n"); 1041fc831825SYuval Mintz qed_iscsi_stop(cdev); 1042fc831825SYuval Mintz kfree(tid_info); 1043fc831825SYuval Mintz return rc; 1044fc831825SYuval Mintz } 1045fc831825SYuval Mintz 1046fc831825SYuval Mintz /* Fill task information */ 1047fc831825SYuval Mintz tasks->size = tid_info->tid_size; 1048fc831825SYuval Mintz tasks->num_tids_per_block = tid_info->num_tids_per_block; 1049fc831825SYuval Mintz memcpy(tasks->blocks, tid_info->blocks, 1050fc831825SYuval Mintz MAX_TID_BLOCKS_ISCSI * sizeof(u8 *)); 1051fc831825SYuval Mintz 1052fc831825SYuval Mintz kfree(tid_info); 1053fc831825SYuval Mintz 1054fc831825SYuval Mintz return 0; 1055fc831825SYuval Mintz } 1056fc831825SYuval Mintz 1057fc831825SYuval Mintz static int qed_iscsi_acquire_conn(struct qed_dev *cdev, 1058fc831825SYuval Mintz u32 *handle, 1059fc831825SYuval Mintz u32 *fw_cid, void __iomem **p_doorbell) 1060fc831825SYuval Mintz { 1061fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1062fc831825SYuval Mintz int rc; 1063fc831825SYuval Mintz 1064fc831825SYuval Mintz /* Allocate a hashed connection */ 1065fc831825SYuval Mintz hash_con = kzalloc(sizeof(*hash_con), GFP_ATOMIC); 1066fc831825SYuval Mintz if (!hash_con) 1067fc831825SYuval Mintz return -ENOMEM; 1068fc831825SYuval Mintz 1069fc831825SYuval Mintz /* Acquire the connection */ 1070fc831825SYuval Mintz rc = qed_iscsi_acquire_connection(QED_LEADING_HWFN(cdev), NULL, 1071fc831825SYuval Mintz &hash_con->con); 1072fc831825SYuval Mintz if (rc) { 1073fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to acquire Connection\n"); 1074fc831825SYuval Mintz kfree(hash_con); 1075fc831825SYuval Mintz return rc; 1076fc831825SYuval Mintz } 1077fc831825SYuval Mintz 1078fc831825SYuval Mintz /* Added the connection to hash table */ 1079fc831825SYuval Mintz *handle = hash_con->con->icid; 1080fc831825SYuval Mintz *fw_cid = hash_con->con->fw_cid; 1081fc831825SYuval Mintz hash_add(cdev->connections, &hash_con->node, *handle); 1082fc831825SYuval Mintz 1083fc831825SYuval Mintz if (p_doorbell) 1084fc831825SYuval Mintz *p_doorbell = qed_iscsi_get_db_addr(QED_LEADING_HWFN(cdev), 1085fc831825SYuval Mintz *handle); 1086fc831825SYuval Mintz 1087fc831825SYuval Mintz return 0; 1088fc831825SYuval Mintz } 1089fc831825SYuval Mintz 1090fc831825SYuval Mintz static int qed_iscsi_release_conn(struct qed_dev *cdev, u32 handle) 1091fc831825SYuval Mintz { 1092fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1093fc831825SYuval Mintz 1094fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1095fc831825SYuval Mintz if (!hash_con) { 1096fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1097fc831825SYuval Mintz handle); 1098fc831825SYuval Mintz return -EINVAL; 1099fc831825SYuval Mintz } 1100fc831825SYuval Mintz 1101fc831825SYuval Mintz hlist_del(&hash_con->node); 1102fc831825SYuval Mintz qed_iscsi_release_connection(QED_LEADING_HWFN(cdev), hash_con->con); 1103fc831825SYuval Mintz kfree(hash_con); 1104fc831825SYuval Mintz 1105fc831825SYuval Mintz return 0; 1106fc831825SYuval Mintz } 1107fc831825SYuval Mintz 1108fc831825SYuval Mintz static int qed_iscsi_offload_conn(struct qed_dev *cdev, 1109fc831825SYuval Mintz u32 handle, 1110fc831825SYuval Mintz struct qed_iscsi_params_offload *conn_info) 1111fc831825SYuval Mintz { 1112fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1113fc831825SYuval Mintz struct qed_iscsi_conn *con; 1114fc831825SYuval Mintz 1115fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1116fc831825SYuval Mintz if (!hash_con) { 1117fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1118fc831825SYuval Mintz handle); 1119fc831825SYuval Mintz return -EINVAL; 1120fc831825SYuval Mintz } 1121fc831825SYuval Mintz 1122fc831825SYuval Mintz /* Update the connection with information from the params */ 1123fc831825SYuval Mintz con = hash_con->con; 1124fc831825SYuval Mintz 1125fc831825SYuval Mintz ether_addr_copy(con->local_mac, conn_info->src.mac); 1126fc831825SYuval Mintz ether_addr_copy(con->remote_mac, conn_info->dst.mac); 1127fc831825SYuval Mintz memcpy(con->local_ip, conn_info->src.ip, sizeof(con->local_ip)); 1128fc831825SYuval Mintz memcpy(con->remote_ip, conn_info->dst.ip, sizeof(con->remote_ip)); 1129fc831825SYuval Mintz con->local_port = conn_info->src.port; 1130fc831825SYuval Mintz con->remote_port = conn_info->dst.port; 1131fc831825SYuval Mintz 1132fc831825SYuval Mintz con->layer_code = conn_info->layer_code; 1133fc831825SYuval Mintz con->sq_pbl_addr = conn_info->sq_pbl_addr; 1134fc831825SYuval Mintz con->initial_ack = conn_info->initial_ack; 1135fc831825SYuval Mintz con->vlan_id = conn_info->vlan_id; 1136fc831825SYuval Mintz con->tcp_flags = conn_info->tcp_flags; 1137fc831825SYuval Mintz con->ip_version = conn_info->ip_version; 1138fc831825SYuval Mintz con->default_cq = conn_info->default_cq; 1139fc831825SYuval Mintz con->ka_max_probe_cnt = conn_info->ka_max_probe_cnt; 1140fc831825SYuval Mintz con->dup_ack_theshold = conn_info->dup_ack_theshold; 1141fc831825SYuval Mintz con->rcv_next = conn_info->rcv_next; 1142fc831825SYuval Mintz con->snd_una = conn_info->snd_una; 1143fc831825SYuval Mintz con->snd_next = conn_info->snd_next; 1144fc831825SYuval Mintz con->snd_max = conn_info->snd_max; 1145fc831825SYuval Mintz con->snd_wnd = conn_info->snd_wnd; 1146fc831825SYuval Mintz con->rcv_wnd = conn_info->rcv_wnd; 1147fc831825SYuval Mintz con->snd_wl1 = conn_info->snd_wl1; 1148fc831825SYuval Mintz con->cwnd = conn_info->cwnd; 1149fc831825SYuval Mintz con->ss_thresh = conn_info->ss_thresh; 1150fc831825SYuval Mintz con->srtt = conn_info->srtt; 1151fc831825SYuval Mintz con->rtt_var = conn_info->rtt_var; 1152fc831825SYuval Mintz con->ts_time = conn_info->ts_time; 1153fc831825SYuval Mintz con->ts_recent = conn_info->ts_recent; 1154fc831825SYuval Mintz con->ts_recent_age = conn_info->ts_recent_age; 1155fc831825SYuval Mintz con->total_rt = conn_info->total_rt; 1156fc831825SYuval Mintz con->ka_timeout_delta = conn_info->ka_timeout_delta; 1157fc831825SYuval Mintz con->rt_timeout_delta = conn_info->rt_timeout_delta; 1158fc831825SYuval Mintz con->dup_ack_cnt = conn_info->dup_ack_cnt; 1159fc831825SYuval Mintz con->snd_wnd_probe_cnt = conn_info->snd_wnd_probe_cnt; 1160fc831825SYuval Mintz con->ka_probe_cnt = conn_info->ka_probe_cnt; 1161fc831825SYuval Mintz con->rt_cnt = conn_info->rt_cnt; 1162fc831825SYuval Mintz con->flow_label = conn_info->flow_label; 1163fc831825SYuval Mintz con->ka_timeout = conn_info->ka_timeout; 1164fc831825SYuval Mintz con->ka_interval = conn_info->ka_interval; 1165fc831825SYuval Mintz con->max_rt_time = conn_info->max_rt_time; 1166fc831825SYuval Mintz con->initial_rcv_wnd = conn_info->initial_rcv_wnd; 1167fc831825SYuval Mintz con->ttl = conn_info->ttl; 1168fc831825SYuval Mintz con->tos_or_tc = conn_info->tos_or_tc; 1169fc831825SYuval Mintz con->remote_port = conn_info->remote_port; 1170fc831825SYuval Mintz con->local_port = conn_info->local_port; 1171fc831825SYuval Mintz con->mss = conn_info->mss; 1172fc831825SYuval Mintz con->snd_wnd_scale = conn_info->snd_wnd_scale; 1173fc831825SYuval Mintz con->rcv_wnd_scale = conn_info->rcv_wnd_scale; 1174fc831825SYuval Mintz con->ts_ticks_per_second = conn_info->ts_ticks_per_second; 1175fc831825SYuval Mintz con->da_timeout_value = conn_info->da_timeout_value; 1176fc831825SYuval Mintz con->ack_frequency = conn_info->ack_frequency; 1177fc831825SYuval Mintz 1178fc831825SYuval Mintz /* Set default values on other connection fields */ 1179fc831825SYuval Mintz con->offl_flags = 0x1; 1180fc831825SYuval Mintz 1181fc831825SYuval Mintz return qed_sp_iscsi_conn_offload(QED_LEADING_HWFN(cdev), con, 1182fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1183fc831825SYuval Mintz } 1184fc831825SYuval Mintz 1185fc831825SYuval Mintz static int qed_iscsi_update_conn(struct qed_dev *cdev, 1186fc831825SYuval Mintz u32 handle, 1187fc831825SYuval Mintz struct qed_iscsi_params_update *conn_info) 1188fc831825SYuval Mintz { 1189fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1190fc831825SYuval Mintz struct qed_iscsi_conn *con; 1191fc831825SYuval Mintz 1192fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1193fc831825SYuval Mintz if (!hash_con) { 1194fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1195fc831825SYuval Mintz handle); 1196fc831825SYuval Mintz return -EINVAL; 1197fc831825SYuval Mintz } 1198fc831825SYuval Mintz 1199fc831825SYuval Mintz /* Update the connection with information from the params */ 1200fc831825SYuval Mintz con = hash_con->con; 1201fc831825SYuval Mintz con->update_flag = conn_info->update_flag; 1202fc831825SYuval Mintz con->max_seq_size = conn_info->max_seq_size; 1203fc831825SYuval Mintz con->max_recv_pdu_length = conn_info->max_recv_pdu_length; 1204fc831825SYuval Mintz con->max_send_pdu_length = conn_info->max_send_pdu_length; 1205fc831825SYuval Mintz con->first_seq_length = conn_info->first_seq_length; 1206fc831825SYuval Mintz con->exp_stat_sn = conn_info->exp_stat_sn; 1207fc831825SYuval Mintz 1208fc831825SYuval Mintz return qed_sp_iscsi_conn_update(QED_LEADING_HWFN(cdev), con, 1209fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1210fc831825SYuval Mintz } 1211fc831825SYuval Mintz 1212fc831825SYuval Mintz static int qed_iscsi_clear_conn_sq(struct qed_dev *cdev, u32 handle) 1213fc831825SYuval Mintz { 1214fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1215fc831825SYuval Mintz 1216fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1217fc831825SYuval Mintz if (!hash_con) { 1218fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1219fc831825SYuval Mintz handle); 1220fc831825SYuval Mintz return -EINVAL; 1221fc831825SYuval Mintz } 1222fc831825SYuval Mintz 1223fc831825SYuval Mintz return qed_sp_iscsi_conn_clear_sq(QED_LEADING_HWFN(cdev), 1224fc831825SYuval Mintz hash_con->con, 1225fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1226fc831825SYuval Mintz } 1227fc831825SYuval Mintz 1228fc831825SYuval Mintz static int qed_iscsi_destroy_conn(struct qed_dev *cdev, 1229fc831825SYuval Mintz u32 handle, u8 abrt_conn) 1230fc831825SYuval Mintz { 1231fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1232fc831825SYuval Mintz 1233fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1234fc831825SYuval Mintz if (!hash_con) { 1235fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1236fc831825SYuval Mintz handle); 1237fc831825SYuval Mintz return -EINVAL; 1238fc831825SYuval Mintz } 1239fc831825SYuval Mintz 1240fc831825SYuval Mintz hash_con->con->abortive_dsconnect = abrt_conn; 1241fc831825SYuval Mintz 1242fc831825SYuval Mintz return qed_sp_iscsi_conn_terminate(QED_LEADING_HWFN(cdev), 1243fc831825SYuval Mintz hash_con->con, 1244fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1245fc831825SYuval Mintz } 1246fc831825SYuval Mintz 1247fc831825SYuval Mintz static int qed_iscsi_stats(struct qed_dev *cdev, struct qed_iscsi_stats *stats) 1248fc831825SYuval Mintz { 1249fc831825SYuval Mintz return qed_iscsi_get_stats(QED_LEADING_HWFN(cdev), stats); 1250fc831825SYuval Mintz } 1251fc831825SYuval Mintz 1252fc831825SYuval Mintz static const struct qed_iscsi_ops qed_iscsi_ops_pass = { 1253fc831825SYuval Mintz .common = &qed_common_ops_pass, 1254fc831825SYuval Mintz .ll2 = &qed_ll2_ops_pass, 1255fc831825SYuval Mintz .fill_dev_info = &qed_fill_iscsi_dev_info, 1256fc831825SYuval Mintz .register_ops = &qed_register_iscsi_ops, 1257fc831825SYuval Mintz .start = &qed_iscsi_start, 1258fc831825SYuval Mintz .stop = &qed_iscsi_stop, 1259fc831825SYuval Mintz .acquire_conn = &qed_iscsi_acquire_conn, 1260fc831825SYuval Mintz .release_conn = &qed_iscsi_release_conn, 1261fc831825SYuval Mintz .offload_conn = &qed_iscsi_offload_conn, 1262fc831825SYuval Mintz .update_conn = &qed_iscsi_update_conn, 1263fc831825SYuval Mintz .destroy_conn = &qed_iscsi_destroy_conn, 1264fc831825SYuval Mintz .clear_sq = &qed_iscsi_clear_conn_sq, 1265fc831825SYuval Mintz .get_stats = &qed_iscsi_stats, 1266fc831825SYuval Mintz }; 1267fc831825SYuval Mintz 1268fc831825SYuval Mintz const struct qed_iscsi_ops *qed_get_iscsi_ops() 1269fc831825SYuval Mintz { 1270fc831825SYuval Mintz return &qed_iscsi_ops_pass; 1271fc831825SYuval Mintz } 1272fc831825SYuval Mintz EXPORT_SYMBOL(qed_get_iscsi_ops); 1273fc831825SYuval Mintz 1274fc831825SYuval Mintz void qed_put_iscsi_ops(void) 1275fc831825SYuval Mintz { 1276fc831825SYuval Mintz } 1277fc831825SYuval Mintz EXPORT_SYMBOL(qed_put_iscsi_ops); 1278