1316485Sdavidcs/* 2316485Sdavidcs * Copyright (c) 2017-2018 Cavium, Inc. 3316485Sdavidcs * All rights reserved. 4316485Sdavidcs * 5316485Sdavidcs * Redistribution and use in source and binary forms, with or without 6316485Sdavidcs * modification, are permitted provided that the following conditions 7316485Sdavidcs * are met: 8316485Sdavidcs * 9316485Sdavidcs * 1. Redistributions of source code must retain the above copyright 10316485Sdavidcs * notice, this list of conditions and the following disclaimer. 11316485Sdavidcs * 2. Redistributions in binary form must reproduce the above copyright 12316485Sdavidcs * notice, this list of conditions and the following disclaimer in the 13316485Sdavidcs * documentation and/or other materials provided with the distribution. 14316485Sdavidcs * 15316485Sdavidcs * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16316485Sdavidcs * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17316485Sdavidcs * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18316485Sdavidcs * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19316485Sdavidcs * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20316485Sdavidcs * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21316485Sdavidcs * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22316485Sdavidcs * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23316485Sdavidcs * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24316485Sdavidcs * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25316485Sdavidcs * POSSIBILITY OF SUCH DAMAGE. 26316485Sdavidcs */ 27316485Sdavidcs/* 28316485Sdavidcs * File : ecore_spq.c 29316485Sdavidcs */ 30316485Sdavidcs#include <sys/cdefs.h> 31316485Sdavidcs__FBSDID("$FreeBSD: stable/11/sys/dev/qlnx/qlnxe/ecore_spq.c 337517 2018-08-09 01:17:35Z davidcs $"); 32316485Sdavidcs 33316485Sdavidcs 34316485Sdavidcs#include "bcm_osal.h" 35316485Sdavidcs#include "reg_addr.h" 36316485Sdavidcs#include "ecore_gtt_reg_addr.h" 37316485Sdavidcs#include "ecore_hsi_common.h" 38316485Sdavidcs#include "ecore.h" 39316485Sdavidcs#include "ecore_sp_api.h" 40316485Sdavidcs#include "ecore_spq.h" 41316485Sdavidcs#include "ecore_iro.h" 42316485Sdavidcs#include "ecore_init_fw_funcs.h" 43316485Sdavidcs#include "ecore_cxt.h" 44316485Sdavidcs#include "ecore_int.h" 45316485Sdavidcs#include "ecore_dev_api.h" 46316485Sdavidcs#include "ecore_mcp.h" 47337517Sdavidcs#ifdef CONFIG_ECORE_RDMA 48337517Sdavidcs#include "ecore_rdma.h" 49316485Sdavidcs#endif 50316485Sdavidcs#include "ecore_hw.h" 51316485Sdavidcs#include "ecore_sriov.h" 52316485Sdavidcs#ifdef CONFIG_ECORE_ISCSI 53316485Sdavidcs#include "ecore_iscsi.h" 54316485Sdavidcs#include "ecore_ooo.h" 55316485Sdavidcs#endif 56316485Sdavidcs 57337517Sdavidcs#ifdef _NTDDK_ 58337517Sdavidcs#pragma warning(push) 59337517Sdavidcs#pragma warning(disable : 28167) 60337517Sdavidcs#pragma warning(disable : 28123) 61337517Sdavidcs#endif 62337517Sdavidcs 63316485Sdavidcs/*************************************************************************** 64316485Sdavidcs * Structures & Definitions 65316485Sdavidcs ***************************************************************************/ 66316485Sdavidcs 67316485Sdavidcs#define SPQ_HIGH_PRI_RESERVE_DEFAULT (1) 68316485Sdavidcs 69316485Sdavidcs#define SPQ_BLOCK_DELAY_MAX_ITER (10) 70316485Sdavidcs#define SPQ_BLOCK_DELAY_US (10) 71337517Sdavidcs#define SPQ_BLOCK_SLEEP_MAX_ITER (200) 72316485Sdavidcs#define SPQ_BLOCK_SLEEP_MS (5) 73316485Sdavidcs 74316485Sdavidcs#ifndef REMOVE_DBG 75316485Sdavidcs/*************************************************************************** 76316485Sdavidcs * Debug [iSCSI] tool 77316485Sdavidcs ***************************************************************************/ 78316485Sdavidcsstatic void ecore_iscsi_eq_dump(struct ecore_hwfn *p_hwfn, 79316485Sdavidcs struct event_ring_entry *p_eqe) 80316485Sdavidcs{ 81316485Sdavidcs if (p_eqe->opcode >= MAX_ISCSI_EQE_OPCODE) { 82316485Sdavidcs DP_NOTICE(p_hwfn, false, "Unknown iSCSI EQ: %x\n", 83316485Sdavidcs p_eqe->opcode); 84316485Sdavidcs } 85316485Sdavidcs 86316485Sdavidcs switch (p_eqe->opcode) { 87316485Sdavidcs case ISCSI_EVENT_TYPE_INIT_FUNC: 88316485Sdavidcs case ISCSI_EVENT_TYPE_DESTROY_FUNC: 89316485Sdavidcs /* NOPE */ 90316485Sdavidcs break; 91316485Sdavidcs case ISCSI_EVENT_TYPE_OFFLOAD_CONN: 92316485Sdavidcs case ISCSI_EVENT_TYPE_TERMINATE_CONN: 93316485Sdavidcs DP_VERBOSE(p_hwfn, ECORE_MSG_STORAGE, 94316485Sdavidcs "iSCSI EQE: Port %x, Op %x, echo %x, FWret %x, CID %x, ConnID %x, ERR %x\n", 95316485Sdavidcs p_hwfn->port_id, p_eqe->opcode, 96316485Sdavidcs OSAL_LE16_TO_CPU(p_eqe->echo), 97316485Sdavidcs p_eqe->fw_return_code, 98337517Sdavidcs OSAL_LE16_TO_CPU(p_eqe->data.iscsi_info.icid), 99316485Sdavidcs OSAL_LE16_TO_CPU(p_eqe->data.iscsi_info.conn_id), 100316485Sdavidcs p_eqe->data.iscsi_info.error_code); 101316485Sdavidcs break; 102316485Sdavidcs case ISCSI_EVENT_TYPE_UPDATE_CONN: 103316485Sdavidcs case ISCSI_EVENT_TYPE_CLEAR_SQ: 104316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE: 105316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE: 106316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD: 107316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD: 108316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_SYN_RCVD: 109316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME: 110316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT: 111316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT: 112316485Sdavidcs case ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2: 113316485Sdavidcs case ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR: 114316485Sdavidcs case ISCSI_EVENT_TYPE_TCP_CONN_ERROR: 115316485Sdavidcs default: 116316485Sdavidcs /* NOPE */ 117316485Sdavidcs break; 118316485Sdavidcs } 119316485Sdavidcs} 120316485Sdavidcs#endif 121316485Sdavidcs 122316485Sdavidcs/*************************************************************************** 123316485Sdavidcs * Blocking Imp. (BLOCK/EBLOCK mode) 124316485Sdavidcs ***************************************************************************/ 125320164Sdavidcsstatic void ecore_spq_blocking_cb(struct ecore_hwfn *p_hwfn, void *cookie, 126320164Sdavidcs union event_ring_data OSAL_UNUSED *data, 127320164Sdavidcs u8 fw_return_code) 128316485Sdavidcs{ 129316485Sdavidcs struct ecore_spq_comp_done *comp_done; 130316485Sdavidcs 131316485Sdavidcs comp_done = (struct ecore_spq_comp_done *)cookie; 132316485Sdavidcs 133316485Sdavidcs comp_done->done = 0x1; 134316485Sdavidcs comp_done->fw_return_code = fw_return_code; 135316485Sdavidcs 136316485Sdavidcs /* make update visible to waiting thread */ 137316485Sdavidcs OSAL_SMP_WMB(p_hwfn->p_dev); 138316485Sdavidcs} 139316485Sdavidcs 140316485Sdavidcsstatic enum _ecore_status_t __ecore_spq_block(struct ecore_hwfn *p_hwfn, 141316485Sdavidcs struct ecore_spq_entry *p_ent, 142316485Sdavidcs u8 *p_fw_ret, 143316485Sdavidcs bool sleep_between_iter) 144316485Sdavidcs{ 145316485Sdavidcs struct ecore_spq_comp_done *comp_done; 146316485Sdavidcs u32 iter_cnt; 147316485Sdavidcs 148316485Sdavidcs comp_done = (struct ecore_spq_comp_done *)p_ent->comp_cb.cookie; 149316485Sdavidcs iter_cnt = sleep_between_iter ? SPQ_BLOCK_SLEEP_MAX_ITER 150316485Sdavidcs : SPQ_BLOCK_DELAY_MAX_ITER; 151337517Sdavidcs#ifndef ASIC_ONLY 152337517Sdavidcs if (CHIP_REV_IS_EMUL(p_hwfn->p_dev) && sleep_between_iter) 153337517Sdavidcs iter_cnt *= 5; 154337517Sdavidcs#endif 155316485Sdavidcs 156316485Sdavidcs while (iter_cnt--) { 157316485Sdavidcs OSAL_POLL_MODE_DPC(p_hwfn); 158316485Sdavidcs OSAL_SMP_RMB(p_hwfn->p_dev); 159316485Sdavidcs if (comp_done->done == 1) { 160316485Sdavidcs if (p_fw_ret) 161316485Sdavidcs *p_fw_ret = comp_done->fw_return_code; 162316485Sdavidcs return ECORE_SUCCESS; 163316485Sdavidcs } 164316485Sdavidcs 165316485Sdavidcs if (sleep_between_iter) { 166316485Sdavidcs OSAL_MSLEEP(SPQ_BLOCK_SLEEP_MS); 167316485Sdavidcs } else { 168316485Sdavidcs OSAL_UDELAY(SPQ_BLOCK_DELAY_US); 169316485Sdavidcs } 170316485Sdavidcs } 171316485Sdavidcs 172316485Sdavidcs return ECORE_TIMEOUT; 173316485Sdavidcs} 174316485Sdavidcs 175316485Sdavidcsstatic enum _ecore_status_t ecore_spq_block(struct ecore_hwfn *p_hwfn, 176316485Sdavidcs struct ecore_spq_entry *p_ent, 177316485Sdavidcs u8 *p_fw_ret, bool skip_quick_poll) 178316485Sdavidcs{ 179316485Sdavidcs struct ecore_spq_comp_done *comp_done; 180320164Sdavidcs struct ecore_ptt *p_ptt; 181316485Sdavidcs enum _ecore_status_t rc; 182316485Sdavidcs 183316485Sdavidcs /* A relatively short polling period w/o sleeping, to allow the FW to 184316485Sdavidcs * complete the ramrod and thus possibly to avoid the following sleeps. 185316485Sdavidcs */ 186316485Sdavidcs if (!skip_quick_poll) { 187316485Sdavidcs rc = __ecore_spq_block(p_hwfn, p_ent, p_fw_ret, false); 188316485Sdavidcs if (rc == ECORE_SUCCESS) 189316485Sdavidcs return ECORE_SUCCESS; 190316485Sdavidcs } 191316485Sdavidcs 192316485Sdavidcs /* Move to polling with a sleeping period between iterations */ 193316485Sdavidcs rc = __ecore_spq_block(p_hwfn, p_ent, p_fw_ret, true); 194316485Sdavidcs if (rc == ECORE_SUCCESS) 195316485Sdavidcs return ECORE_SUCCESS; 196316485Sdavidcs 197320164Sdavidcs p_ptt = ecore_ptt_acquire(p_hwfn); 198337517Sdavidcs if (!p_ptt) 199320164Sdavidcs return ECORE_AGAIN; 200320164Sdavidcs 201316485Sdavidcs DP_INFO(p_hwfn, "Ramrod is stuck, requesting MCP drain\n"); 202320164Sdavidcs rc = ecore_mcp_drain(p_hwfn, p_ptt); 203337517Sdavidcs ecore_ptt_release(p_hwfn, p_ptt); 204316485Sdavidcs if (rc != ECORE_SUCCESS) { 205316485Sdavidcs DP_NOTICE(p_hwfn, true, "MCP drain failed\n"); 206316485Sdavidcs goto err; 207316485Sdavidcs } 208316485Sdavidcs 209316485Sdavidcs /* Retry after drain */ 210316485Sdavidcs rc = __ecore_spq_block(p_hwfn, p_ent, p_fw_ret, true); 211316485Sdavidcs if (rc == ECORE_SUCCESS) 212337517Sdavidcs return ECORE_SUCCESS; 213316485Sdavidcs 214316485Sdavidcs comp_done = (struct ecore_spq_comp_done *)p_ent->comp_cb.cookie; 215316485Sdavidcs if (comp_done->done == 1) { 216316485Sdavidcs if (p_fw_ret) 217316485Sdavidcs *p_fw_ret = comp_done->fw_return_code; 218337517Sdavidcs return ECORE_SUCCESS; 219316485Sdavidcs } 220316485Sdavidcserr: 221316485Sdavidcs DP_NOTICE(p_hwfn, true, 222316485Sdavidcs "Ramrod is stuck [CID %08x cmd %02x protocol %02x echo %04x]\n", 223316485Sdavidcs OSAL_LE32_TO_CPU(p_ent->elem.hdr.cid), 224316485Sdavidcs p_ent->elem.hdr.cmd_id, p_ent->elem.hdr.protocol_id, 225316485Sdavidcs OSAL_LE16_TO_CPU(p_ent->elem.hdr.echo)); 226316485Sdavidcs 227316485Sdavidcs ecore_hw_err_notify(p_hwfn, ECORE_HW_ERR_RAMROD_FAIL); 228316485Sdavidcs 229316485Sdavidcs return ECORE_BUSY; 230316485Sdavidcs} 231316485Sdavidcs 232316485Sdavidcs/*************************************************************************** 233316485Sdavidcs * SPQ entries inner API 234316485Sdavidcs ***************************************************************************/ 235316485Sdavidcsstatic enum _ecore_status_t ecore_spq_fill_entry(struct ecore_hwfn *p_hwfn, 236316485Sdavidcs struct ecore_spq_entry *p_ent) 237316485Sdavidcs{ 238316485Sdavidcs p_ent->flags = 0; 239316485Sdavidcs 240316485Sdavidcs switch (p_ent->comp_mode) { 241316485Sdavidcs case ECORE_SPQ_MODE_EBLOCK: 242316485Sdavidcs case ECORE_SPQ_MODE_BLOCK: 243316485Sdavidcs p_ent->comp_cb.function = ecore_spq_blocking_cb; 244316485Sdavidcs break; 245316485Sdavidcs case ECORE_SPQ_MODE_CB: 246316485Sdavidcs break; 247316485Sdavidcs default: 248316485Sdavidcs DP_NOTICE(p_hwfn, true, "Unknown SPQE completion mode %d\n", 249316485Sdavidcs p_ent->comp_mode); 250316485Sdavidcs return ECORE_INVAL; 251316485Sdavidcs } 252316485Sdavidcs 253316485Sdavidcs DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, 254316485Sdavidcs "Ramrod header: [CID 0x%08x CMD 0x%02x protocol 0x%02x] Data pointer: [%08x:%08x] Completion Mode: %s\n", 255316485Sdavidcs p_ent->elem.hdr.cid, p_ent->elem.hdr.cmd_id, 256316485Sdavidcs p_ent->elem.hdr.protocol_id, 257316485Sdavidcs p_ent->elem.data_ptr.hi, p_ent->elem.data_ptr.lo, 258316485Sdavidcs D_TRINE(p_ent->comp_mode, ECORE_SPQ_MODE_EBLOCK, 259316485Sdavidcs ECORE_SPQ_MODE_BLOCK, "MODE_EBLOCK", "MODE_BLOCK", 260316485Sdavidcs "MODE_CB")); 261316485Sdavidcs 262316485Sdavidcs return ECORE_SUCCESS; 263316485Sdavidcs} 264316485Sdavidcs 265316485Sdavidcs/*************************************************************************** 266316485Sdavidcs * HSI access 267316485Sdavidcs ***************************************************************************/ 268316485Sdavidcsstatic void ecore_spq_hw_initialize(struct ecore_hwfn *p_hwfn, 269316485Sdavidcs struct ecore_spq *p_spq) 270316485Sdavidcs{ 271320164Sdavidcs struct e4_core_conn_context *p_cxt; 272316485Sdavidcs struct ecore_cxt_info cxt_info; 273320164Sdavidcs u16 physical_q; 274316485Sdavidcs enum _ecore_status_t rc; 275316485Sdavidcs 276316485Sdavidcs cxt_info.iid = p_spq->cid; 277316485Sdavidcs 278316485Sdavidcs rc = ecore_cxt_get_cid_info(p_hwfn, &cxt_info); 279316485Sdavidcs 280316485Sdavidcs if (rc < 0) { 281316485Sdavidcs DP_NOTICE(p_hwfn, true, "Cannot find context info for cid=%d\n", 282316485Sdavidcs p_spq->cid); 283316485Sdavidcs return; 284316485Sdavidcs } 285316485Sdavidcs 286316485Sdavidcs p_cxt = cxt_info.p_cxt; 287316485Sdavidcs 288316485Sdavidcs /* @@@TBD we zero the context until we have ilt_reset implemented. */ 289316485Sdavidcs OSAL_MEM_ZERO(p_cxt, sizeof(*p_cxt)); 290316485Sdavidcs 291316485Sdavidcs if (ECORE_IS_BB(p_hwfn->p_dev) || ECORE_IS_AH(p_hwfn->p_dev)) { 292316485Sdavidcs SET_FIELD(p_cxt->xstorm_ag_context.flags10, 293316485Sdavidcs E4_XSTORM_CORE_CONN_AG_CTX_DQ_CF_EN, 1); 294316485Sdavidcs SET_FIELD(p_cxt->xstorm_ag_context.flags1, 295316485Sdavidcs E4_XSTORM_CORE_CONN_AG_CTX_DQ_CF_ACTIVE, 1); 296316485Sdavidcs /*SET_FIELD(p_cxt->xstorm_ag_context.flags10, 297316485Sdavidcs E4_XSTORM_CORE_CONN_AG_CTX_SLOW_PATH_EN, 1);*/ 298316485Sdavidcs SET_FIELD(p_cxt->xstorm_ag_context.flags9, 299316485Sdavidcs E4_XSTORM_CORE_CONN_AG_CTX_CONSOLID_PROD_CF_EN, 1); 300316485Sdavidcs } else { /* E5 */ 301316485Sdavidcs ECORE_E5_MISSING_CODE; 302316485Sdavidcs } 303316485Sdavidcs 304316485Sdavidcs /* CDU validation - FIXME currently disabled */ 305316485Sdavidcs 306316485Sdavidcs /* QM physical queue */ 307316485Sdavidcs physical_q = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LB); 308316485Sdavidcs p_cxt->xstorm_ag_context.physical_q0 = OSAL_CPU_TO_LE16(physical_q); 309316485Sdavidcs 310316485Sdavidcs p_cxt->xstorm_st_context.spq_base_lo = 311316485Sdavidcs DMA_LO_LE(p_spq->chain.p_phys_addr); 312316485Sdavidcs p_cxt->xstorm_st_context.spq_base_hi = 313316485Sdavidcs DMA_HI_LE(p_spq->chain.p_phys_addr); 314316485Sdavidcs 315316485Sdavidcs DMA_REGPAIR_LE(p_cxt->xstorm_st_context.consolid_base_addr, 316316485Sdavidcs p_hwfn->p_consq->chain.p_phys_addr); 317316485Sdavidcs} 318316485Sdavidcs 319316485Sdavidcsstatic enum _ecore_status_t ecore_spq_hw_post(struct ecore_hwfn *p_hwfn, 320316485Sdavidcs struct ecore_spq *p_spq, 321316485Sdavidcs struct ecore_spq_entry *p_ent) 322316485Sdavidcs{ 323316485Sdavidcs struct ecore_chain *p_chain = &p_hwfn->p_spq->chain; 324337517Sdavidcs struct core_db_data *p_db_data = &p_spq->db_data; 325316485Sdavidcs u16 echo = ecore_chain_get_prod_idx(p_chain); 326316485Sdavidcs struct slow_path_element *elem; 327316485Sdavidcs 328316485Sdavidcs p_ent->elem.hdr.echo = OSAL_CPU_TO_LE16(echo); 329316485Sdavidcs elem = ecore_chain_produce(p_chain); 330316485Sdavidcs if (!elem) { 331316485Sdavidcs DP_NOTICE(p_hwfn, true, "Failed to produce from SPQ chain\n"); 332316485Sdavidcs return ECORE_INVAL; 333316485Sdavidcs } 334316485Sdavidcs 335337517Sdavidcs *elem = p_ent->elem; /* Struct assignment */ 336316485Sdavidcs 337337517Sdavidcs p_db_data->spq_prod = 338337517Sdavidcs OSAL_CPU_TO_LE16(ecore_chain_get_prod_idx(p_chain)); 339316485Sdavidcs 340337517Sdavidcs /* Make sure the SPQE is updated before the doorbell */ 341316485Sdavidcs OSAL_WMB(p_hwfn->p_dev); 342316485Sdavidcs 343337517Sdavidcs DOORBELL(p_hwfn, p_spq->db_addr_offset, *(u32 *)p_db_data); 344316485Sdavidcs 345337517Sdavidcs /* Make sure doorbell was rung */ 346316485Sdavidcs OSAL_WMB(p_hwfn->p_dev); 347316485Sdavidcs 348316485Sdavidcs DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, 349316485Sdavidcs "Doorbelled [0x%08x, CID 0x%08x] with Flags: %02x agg_params: %02x, prod: %04x\n", 350337517Sdavidcs p_spq->db_addr_offset, p_spq->cid, p_db_data->params, 351337517Sdavidcs p_db_data->agg_flags, ecore_chain_get_prod_idx(p_chain)); 352316485Sdavidcs 353316485Sdavidcs return ECORE_SUCCESS; 354316485Sdavidcs} 355316485Sdavidcs 356316485Sdavidcs/*************************************************************************** 357316485Sdavidcs * Asynchronous events 358316485Sdavidcs ***************************************************************************/ 359316485Sdavidcs 360316485Sdavidcsstatic enum _ecore_status_t 361316485Sdavidcsecore_async_event_completion(struct ecore_hwfn *p_hwfn, 362316485Sdavidcs struct event_ring_entry *p_eqe) 363316485Sdavidcs{ 364337517Sdavidcs ecore_spq_async_comp_cb cb; 365337517Sdavidcs 366337517Sdavidcs if (!p_hwfn->p_spq || (p_eqe->protocol_id >= MAX_PROTOCOL_TYPE)) { 367337517Sdavidcs return ECORE_INVAL; 368316485Sdavidcs } 369316485Sdavidcs 370337517Sdavidcs cb = p_hwfn->p_spq->async_comp_cb[p_eqe->protocol_id]; 371337517Sdavidcs if (cb) { 372337517Sdavidcs return cb(p_hwfn, p_eqe->opcode, p_eqe->echo, 373337517Sdavidcs &p_eqe->data, p_eqe->fw_return_code); 374337517Sdavidcs } else { 375316485Sdavidcs DP_NOTICE(p_hwfn, 376337517Sdavidcs true, "Unknown Async completion for protocol: %d\n", 377337517Sdavidcs p_eqe->protocol_id); 378316485Sdavidcs return ECORE_INVAL; 379316485Sdavidcs } 380316485Sdavidcs} 381316485Sdavidcs 382337517Sdavidcsenum _ecore_status_t 383337517Sdavidcsecore_spq_register_async_cb(struct ecore_hwfn *p_hwfn, 384337517Sdavidcs enum protocol_type protocol_id, 385337517Sdavidcs ecore_spq_async_comp_cb cb) 386337517Sdavidcs{ 387337517Sdavidcs if (!p_hwfn->p_spq || (protocol_id >= MAX_PROTOCOL_TYPE)) { 388337517Sdavidcs return ECORE_INVAL; 389337517Sdavidcs } 390337517Sdavidcs 391337517Sdavidcs p_hwfn->p_spq->async_comp_cb[protocol_id] = cb; 392337517Sdavidcs return ECORE_SUCCESS; 393337517Sdavidcs} 394337517Sdavidcs 395337517Sdavidcsvoid 396337517Sdavidcsecore_spq_unregister_async_cb(struct ecore_hwfn *p_hwfn, 397337517Sdavidcs enum protocol_type protocol_id) 398337517Sdavidcs{ 399337517Sdavidcs if (!p_hwfn->p_spq || (protocol_id >= MAX_PROTOCOL_TYPE)) { 400337517Sdavidcs return; 401337517Sdavidcs } 402337517Sdavidcs 403337517Sdavidcs p_hwfn->p_spq->async_comp_cb[protocol_id] = OSAL_NULL; 404337517Sdavidcs} 405337517Sdavidcs 406316485Sdavidcs/*************************************************************************** 407316485Sdavidcs * EQ API 408316485Sdavidcs ***************************************************************************/ 409316485Sdavidcsvoid ecore_eq_prod_update(struct ecore_hwfn *p_hwfn, 410316485Sdavidcs u16 prod) 411316485Sdavidcs{ 412316485Sdavidcs u32 addr = GTT_BAR0_MAP_REG_USDM_RAM + 413316485Sdavidcs USTORM_EQE_CONS_OFFSET(p_hwfn->rel_pf_id); 414316485Sdavidcs 415316485Sdavidcs REG_WR16(p_hwfn, addr, prod); 416316485Sdavidcs 417316485Sdavidcs /* keep prod updates ordered */ 418316485Sdavidcs OSAL_MMIOWB(p_hwfn->p_dev); 419316485Sdavidcs} 420316485Sdavidcs 421316485Sdavidcsenum _ecore_status_t ecore_eq_completion(struct ecore_hwfn *p_hwfn, 422316485Sdavidcs void *cookie) 423316485Sdavidcs 424316485Sdavidcs{ 425316485Sdavidcs struct ecore_eq *p_eq = cookie; 426316485Sdavidcs struct ecore_chain *p_chain = &p_eq->chain; 427316485Sdavidcs enum _ecore_status_t rc = 0; 428316485Sdavidcs 429316485Sdavidcs /* take a snapshot of the FW consumer */ 430316485Sdavidcs u16 fw_cons_idx = OSAL_LE16_TO_CPU(*p_eq->p_fw_cons); 431316485Sdavidcs 432316485Sdavidcs DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, "fw_cons_idx %x\n", fw_cons_idx); 433316485Sdavidcs 434316485Sdavidcs /* Need to guarantee the fw_cons index we use points to a usuable 435316485Sdavidcs * element (to comply with our chain), so our macros would comply 436316485Sdavidcs */ 437316485Sdavidcs if ((fw_cons_idx & ecore_chain_get_usable_per_page(p_chain)) == 438316485Sdavidcs ecore_chain_get_usable_per_page(p_chain)) { 439316485Sdavidcs fw_cons_idx += ecore_chain_get_unusable_per_page(p_chain); 440316485Sdavidcs } 441316485Sdavidcs 442316485Sdavidcs /* Complete current segment of eq entries */ 443316485Sdavidcs while (fw_cons_idx != ecore_chain_get_cons_idx(p_chain)) { 444316485Sdavidcs struct event_ring_entry *p_eqe = ecore_chain_consume(p_chain); 445316485Sdavidcs if (!p_eqe) { 446316485Sdavidcs rc = ECORE_INVAL; 447316485Sdavidcs break; 448316485Sdavidcs } 449316485Sdavidcs 450316485Sdavidcs DP_VERBOSE(p_hwfn, 451316485Sdavidcs ECORE_MSG_SPQ, 452316485Sdavidcs "op %x prot %x res0 %x echo %x fwret %x flags %x\n", 453316485Sdavidcs p_eqe->opcode, /* Event Opcode */ 454316485Sdavidcs p_eqe->protocol_id, /* Event Protocol ID */ 455316485Sdavidcs p_eqe->reserved0, /* Reserved */ 456316485Sdavidcs OSAL_LE16_TO_CPU(p_eqe->echo),/* Echo value from 457316485Sdavidcs ramrod data on the host 458316485Sdavidcs */ 459316485Sdavidcs p_eqe->fw_return_code, /* FW return code for SP 460316485Sdavidcs ramrods 461316485Sdavidcs */ 462316485Sdavidcs p_eqe->flags); 463316485Sdavidcs#ifndef REMOVE_DBG 464316485Sdavidcs if (p_eqe->protocol_id == PROTOCOLID_ISCSI) 465316485Sdavidcs ecore_iscsi_eq_dump(p_hwfn, p_eqe); 466316485Sdavidcs#endif 467316485Sdavidcs 468316485Sdavidcs if (GET_FIELD(p_eqe->flags, EVENT_RING_ENTRY_ASYNC)) { 469316485Sdavidcs if (ecore_async_event_completion(p_hwfn, p_eqe)) 470316485Sdavidcs rc = ECORE_INVAL; 471316485Sdavidcs } else if (ecore_spq_completion(p_hwfn, 472316485Sdavidcs p_eqe->echo, 473316485Sdavidcs p_eqe->fw_return_code, 474316485Sdavidcs &p_eqe->data)) { 475316485Sdavidcs rc = ECORE_INVAL; 476316485Sdavidcs } 477316485Sdavidcs 478316485Sdavidcs ecore_chain_recycle_consumed(p_chain); 479316485Sdavidcs } 480316485Sdavidcs 481316485Sdavidcs ecore_eq_prod_update(p_hwfn, ecore_chain_get_prod_idx(p_chain)); 482316485Sdavidcs 483337517Sdavidcs /* Attempt to post pending requests */ 484337517Sdavidcs OSAL_SPIN_LOCK(&p_hwfn->p_spq->lock); 485337517Sdavidcs rc = ecore_spq_pend_post(p_hwfn); 486337517Sdavidcs OSAL_SPIN_UNLOCK(&p_hwfn->p_spq->lock); 487337517Sdavidcs 488316485Sdavidcs return rc; 489316485Sdavidcs} 490316485Sdavidcs 491316485Sdavidcsenum _ecore_status_t ecore_eq_alloc(struct ecore_hwfn *p_hwfn, u16 num_elem) 492316485Sdavidcs{ 493316485Sdavidcs struct ecore_eq *p_eq; 494316485Sdavidcs 495316485Sdavidcs /* Allocate EQ struct */ 496316485Sdavidcs p_eq = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*p_eq)); 497316485Sdavidcs if (!p_eq) { 498337517Sdavidcs DP_NOTICE(p_hwfn, false, 499316485Sdavidcs "Failed to allocate `struct ecore_eq'\n"); 500316485Sdavidcs return ECORE_NOMEM; 501316485Sdavidcs } 502316485Sdavidcs 503316485Sdavidcs /* Allocate and initialize EQ chain*/ 504316485Sdavidcs if (ecore_chain_alloc(p_hwfn->p_dev, 505316485Sdavidcs ECORE_CHAIN_USE_TO_PRODUCE, 506316485Sdavidcs ECORE_CHAIN_MODE_PBL, 507316485Sdavidcs ECORE_CHAIN_CNT_TYPE_U16, 508316485Sdavidcs num_elem, 509316485Sdavidcs sizeof(union event_ring_element), 510316485Sdavidcs &p_eq->chain, OSAL_NULL) != ECORE_SUCCESS) { 511337517Sdavidcs DP_NOTICE(p_hwfn, false, "Failed to allocate eq chain\n"); 512316485Sdavidcs goto eq_allocate_fail; 513316485Sdavidcs } 514316485Sdavidcs 515316485Sdavidcs /* register EQ completion on the SP SB */ 516316485Sdavidcs ecore_int_register_cb(p_hwfn, ecore_eq_completion, 517316485Sdavidcs p_eq, &p_eq->eq_sb_index, &p_eq->p_fw_cons); 518316485Sdavidcs 519316485Sdavidcs p_hwfn->p_eq = p_eq; 520316485Sdavidcs return ECORE_SUCCESS; 521316485Sdavidcs 522316485Sdavidcseq_allocate_fail: 523316485Sdavidcs OSAL_FREE(p_hwfn->p_dev, p_eq); 524316485Sdavidcs return ECORE_NOMEM; 525316485Sdavidcs} 526316485Sdavidcs 527316485Sdavidcsvoid ecore_eq_setup(struct ecore_hwfn *p_hwfn) 528316485Sdavidcs{ 529316485Sdavidcs ecore_chain_reset(&p_hwfn->p_eq->chain); 530316485Sdavidcs} 531316485Sdavidcs 532316485Sdavidcsvoid ecore_eq_free(struct ecore_hwfn *p_hwfn) 533316485Sdavidcs{ 534316485Sdavidcs if (!p_hwfn->p_eq) 535316485Sdavidcs return; 536316485Sdavidcs 537316485Sdavidcs ecore_chain_free(p_hwfn->p_dev, &p_hwfn->p_eq->chain); 538316485Sdavidcs 539316485Sdavidcs OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_eq); 540316485Sdavidcs p_hwfn->p_eq = OSAL_NULL; 541316485Sdavidcs} 542316485Sdavidcs 543316485Sdavidcs/*************************************************************************** 544320164Sdavidcs* CQE API - manipulate EQ functionallity 545316485Sdavidcs***************************************************************************/ 546316485Sdavidcsstatic enum _ecore_status_t ecore_cqe_completion(struct ecore_hwfn *p_hwfn, 547316485Sdavidcs struct eth_slow_path_rx_cqe *cqe, 548316485Sdavidcs enum protocol_type protocol) 549316485Sdavidcs{ 550316485Sdavidcs if (IS_VF(p_hwfn->p_dev)) 551316485Sdavidcs return OSAL_VF_CQE_COMPLETION(p_hwfn, cqe, protocol); 552316485Sdavidcs 553316485Sdavidcs /* @@@tmp - it's possible we'll eventually want to handle some 554316485Sdavidcs * actual commands that can arrive here, but for now this is only 555316485Sdavidcs * used to complete the ramrod using the echo value on the cqe 556316485Sdavidcs */ 557316485Sdavidcs return ecore_spq_completion(p_hwfn, cqe->echo, 0, OSAL_NULL); 558316485Sdavidcs} 559316485Sdavidcs 560316485Sdavidcsenum _ecore_status_t ecore_eth_cqe_completion(struct ecore_hwfn *p_hwfn, 561316485Sdavidcs struct eth_slow_path_rx_cqe *cqe) 562316485Sdavidcs{ 563316485Sdavidcs enum _ecore_status_t rc; 564316485Sdavidcs 565316485Sdavidcs rc = ecore_cqe_completion(p_hwfn, cqe, PROTOCOLID_ETH); 566316485Sdavidcs if (rc) { 567316485Sdavidcs DP_NOTICE(p_hwfn, true, 568316485Sdavidcs "Failed to handle RXQ CQE [cmd 0x%02x]\n", 569316485Sdavidcs cqe->ramrod_cmd_id); 570316485Sdavidcs } 571316485Sdavidcs 572316485Sdavidcs return rc; 573316485Sdavidcs} 574316485Sdavidcs 575316485Sdavidcs/*************************************************************************** 576316485Sdavidcs * Slow hwfn Queue (spq) 577316485Sdavidcs ***************************************************************************/ 578316485Sdavidcsvoid ecore_spq_setup(struct ecore_hwfn *p_hwfn) 579316485Sdavidcs{ 580316485Sdavidcs struct ecore_spq *p_spq = p_hwfn->p_spq; 581316485Sdavidcs struct ecore_spq_entry *p_virt = OSAL_NULL; 582337517Sdavidcs struct core_db_data *p_db_data; 583337517Sdavidcs void OSAL_IOMEM *db_addr; 584316485Sdavidcs dma_addr_t p_phys = 0; 585316485Sdavidcs u32 i, capacity; 586337517Sdavidcs enum _ecore_status_t rc; 587316485Sdavidcs 588316485Sdavidcs OSAL_LIST_INIT(&p_spq->pending); 589316485Sdavidcs OSAL_LIST_INIT(&p_spq->completion_pending); 590316485Sdavidcs OSAL_LIST_INIT(&p_spq->free_pool); 591316485Sdavidcs OSAL_LIST_INIT(&p_spq->unlimited_pending); 592316485Sdavidcs OSAL_SPIN_LOCK_INIT(&p_spq->lock); 593316485Sdavidcs 594316485Sdavidcs /* SPQ empty pool */ 595316485Sdavidcs p_phys = p_spq->p_phys + OFFSETOF(struct ecore_spq_entry, ramrod); 596316485Sdavidcs p_virt = p_spq->p_virt; 597316485Sdavidcs 598316485Sdavidcs capacity = ecore_chain_get_capacity(&p_spq->chain); 599316485Sdavidcs for (i = 0; i < capacity; i++) { 600316485Sdavidcs DMA_REGPAIR_LE(p_virt->elem.data_ptr, p_phys); 601316485Sdavidcs 602316485Sdavidcs OSAL_LIST_PUSH_TAIL(&p_virt->list, &p_spq->free_pool); 603316485Sdavidcs 604316485Sdavidcs p_virt++; 605316485Sdavidcs p_phys += sizeof(struct ecore_spq_entry); 606316485Sdavidcs } 607316485Sdavidcs 608316485Sdavidcs /* Statistics */ 609316485Sdavidcs p_spq->normal_count = 0; 610316485Sdavidcs p_spq->comp_count = 0; 611316485Sdavidcs p_spq->comp_sent_count = 0; 612316485Sdavidcs p_spq->unlimited_pending_count = 0; 613316485Sdavidcs 614316485Sdavidcs OSAL_MEM_ZERO(p_spq->p_comp_bitmap, 615316485Sdavidcs SPQ_COMP_BMAP_SIZE * sizeof(unsigned long)); 616316485Sdavidcs p_spq->comp_bitmap_idx = 0; 617316485Sdavidcs 618316485Sdavidcs /* SPQ cid, cannot fail */ 619316485Sdavidcs ecore_cxt_acquire_cid(p_hwfn, PROTOCOLID_CORE, &p_spq->cid); 620316485Sdavidcs ecore_spq_hw_initialize(p_hwfn, p_spq); 621316485Sdavidcs 622316485Sdavidcs /* reset the chain itself */ 623316485Sdavidcs ecore_chain_reset(&p_spq->chain); 624337517Sdavidcs 625337517Sdavidcs /* Initialize the address/data of the SPQ doorbell */ 626337517Sdavidcs p_spq->db_addr_offset = DB_ADDR(p_spq->cid, DQ_DEMS_LEGACY); 627337517Sdavidcs p_db_data = &p_spq->db_data; 628337517Sdavidcs OSAL_MEM_ZERO(p_db_data, sizeof(*p_db_data)); 629337517Sdavidcs SET_FIELD(p_db_data->params, CORE_DB_DATA_DEST, DB_DEST_XCM); 630337517Sdavidcs SET_FIELD(p_db_data->params, CORE_DB_DATA_AGG_CMD, DB_AGG_CMD_MAX); 631337517Sdavidcs SET_FIELD(p_db_data->params, CORE_DB_DATA_AGG_VAL_SEL, 632337517Sdavidcs DQ_XCM_CORE_SPQ_PROD_CMD); 633337517Sdavidcs p_db_data->agg_flags = DQ_XCM_CORE_DQ_CF_CMD; 634337517Sdavidcs 635337517Sdavidcs /* Register the SPQ doorbell with the doorbell recovery mechanism */ 636337517Sdavidcs db_addr = (void *)((u8 *)p_hwfn->doorbells + p_spq->db_addr_offset); 637337517Sdavidcs rc = ecore_db_recovery_add(p_hwfn->p_dev, db_addr, &p_spq->db_data, 638337517Sdavidcs DB_REC_WIDTH_32B, DB_REC_KERNEL); 639337517Sdavidcs if (rc != ECORE_SUCCESS) 640337517Sdavidcs DP_INFO(p_hwfn, 641337517Sdavidcs "Failed to register the SPQ doorbell with the doorbell recovery mechanism\n"); 642316485Sdavidcs} 643316485Sdavidcs 644316485Sdavidcsenum _ecore_status_t ecore_spq_alloc(struct ecore_hwfn *p_hwfn) 645316485Sdavidcs{ 646316485Sdavidcs struct ecore_spq_entry *p_virt = OSAL_NULL; 647316485Sdavidcs struct ecore_spq *p_spq = OSAL_NULL; 648316485Sdavidcs dma_addr_t p_phys = 0; 649316485Sdavidcs u32 capacity; 650316485Sdavidcs 651316485Sdavidcs /* SPQ struct */ 652316485Sdavidcs p_spq = 653316485Sdavidcs OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(struct ecore_spq)); 654316485Sdavidcs if (!p_spq) { 655337517Sdavidcs DP_NOTICE(p_hwfn, false, "Failed to allocate `struct ecore_spq'\n"); 656316485Sdavidcs return ECORE_NOMEM; 657316485Sdavidcs } 658316485Sdavidcs 659316485Sdavidcs /* SPQ ring */ 660316485Sdavidcs if (ecore_chain_alloc(p_hwfn->p_dev, 661316485Sdavidcs ECORE_CHAIN_USE_TO_PRODUCE, 662316485Sdavidcs ECORE_CHAIN_MODE_SINGLE, 663316485Sdavidcs ECORE_CHAIN_CNT_TYPE_U16, 664316485Sdavidcs 0, /* N/A when the mode is SINGLE */ 665316485Sdavidcs sizeof(struct slow_path_element), 666316485Sdavidcs &p_spq->chain, OSAL_NULL)) { 667337517Sdavidcs DP_NOTICE(p_hwfn, false, "Failed to allocate spq chain\n"); 668316485Sdavidcs goto spq_allocate_fail; 669316485Sdavidcs } 670316485Sdavidcs 671316485Sdavidcs /* allocate and fill the SPQ elements (incl. ramrod data list) */ 672316485Sdavidcs capacity = ecore_chain_get_capacity(&p_spq->chain); 673316485Sdavidcs p_virt = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, &p_phys, 674316485Sdavidcs capacity * 675316485Sdavidcs sizeof(struct ecore_spq_entry)); 676316485Sdavidcs if (!p_virt) { 677316485Sdavidcs goto spq_allocate_fail; 678316485Sdavidcs } 679316485Sdavidcs 680316485Sdavidcs p_spq->p_virt = p_virt; 681316485Sdavidcs p_spq->p_phys = p_phys; 682316485Sdavidcs 683320164Sdavidcs#ifdef CONFIG_ECORE_LOCK_ALLOC 684337517Sdavidcs if (OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_spq->lock)) 685337517Sdavidcs goto spq_allocate_fail; 686320164Sdavidcs#endif 687316485Sdavidcs 688316485Sdavidcs p_hwfn->p_spq = p_spq; 689316485Sdavidcs return ECORE_SUCCESS; 690316485Sdavidcs 691316485Sdavidcsspq_allocate_fail: 692316485Sdavidcs ecore_chain_free(p_hwfn->p_dev, &p_spq->chain); 693316485Sdavidcs OSAL_FREE(p_hwfn->p_dev, p_spq); 694316485Sdavidcs return ECORE_NOMEM; 695316485Sdavidcs} 696316485Sdavidcs 697316485Sdavidcsvoid ecore_spq_free(struct ecore_hwfn *p_hwfn) 698316485Sdavidcs{ 699316485Sdavidcs struct ecore_spq *p_spq = p_hwfn->p_spq; 700337517Sdavidcs void OSAL_IOMEM *db_addr; 701316485Sdavidcs u32 capacity; 702316485Sdavidcs 703316485Sdavidcs if (!p_spq) 704316485Sdavidcs return; 705316485Sdavidcs 706337517Sdavidcs /* Delete the SPQ doorbell from the doorbell recovery mechanism */ 707337517Sdavidcs db_addr = (void *)((u8 *)p_hwfn->doorbells + p_spq->db_addr_offset); 708337517Sdavidcs ecore_db_recovery_del(p_hwfn->p_dev, db_addr, &p_spq->db_data); 709337517Sdavidcs 710316485Sdavidcs if (p_spq->p_virt) { 711316485Sdavidcs capacity = ecore_chain_get_capacity(&p_spq->chain); 712316485Sdavidcs OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, 713316485Sdavidcs p_spq->p_virt, 714316485Sdavidcs p_spq->p_phys, 715316485Sdavidcs capacity * 716316485Sdavidcs sizeof(struct ecore_spq_entry)); 717316485Sdavidcs } 718316485Sdavidcs 719316485Sdavidcs ecore_chain_free(p_hwfn->p_dev, &p_spq->chain); 720320164Sdavidcs#ifdef CONFIG_ECORE_LOCK_ALLOC 721316485Sdavidcs OSAL_SPIN_LOCK_DEALLOC(&p_spq->lock); 722320164Sdavidcs#endif 723316485Sdavidcs 724316485Sdavidcs OSAL_FREE(p_hwfn->p_dev, p_spq); 725316485Sdavidcs p_hwfn->p_spq = OSAL_NULL; 726316485Sdavidcs} 727316485Sdavidcs 728316485Sdavidcsenum _ecore_status_t ecore_spq_get_entry(struct ecore_hwfn *p_hwfn, 729316485Sdavidcs struct ecore_spq_entry **pp_ent) 730316485Sdavidcs{ 731316485Sdavidcs struct ecore_spq *p_spq = p_hwfn->p_spq; 732316485Sdavidcs struct ecore_spq_entry *p_ent = OSAL_NULL; 733316485Sdavidcs enum _ecore_status_t rc = ECORE_SUCCESS; 734316485Sdavidcs 735316485Sdavidcs OSAL_SPIN_LOCK(&p_spq->lock); 736316485Sdavidcs 737316485Sdavidcs if (OSAL_LIST_IS_EMPTY(&p_spq->free_pool)) { 738316485Sdavidcs 739316485Sdavidcs p_ent = OSAL_ZALLOC(p_hwfn->p_dev, GFP_ATOMIC, sizeof(*p_ent)); 740316485Sdavidcs if (!p_ent) { 741337517Sdavidcs DP_NOTICE(p_hwfn, false, "Failed to allocate an SPQ entry for a pending ramrod\n"); 742316485Sdavidcs rc = ECORE_NOMEM; 743316485Sdavidcs goto out_unlock; 744316485Sdavidcs } 745316485Sdavidcs p_ent->queue = &p_spq->unlimited_pending; 746316485Sdavidcs } else { 747316485Sdavidcs p_ent = OSAL_LIST_FIRST_ENTRY(&p_spq->free_pool, 748316485Sdavidcs struct ecore_spq_entry, 749316485Sdavidcs list); 750316485Sdavidcs OSAL_LIST_REMOVE_ENTRY(&p_ent->list, &p_spq->free_pool); 751316485Sdavidcs p_ent->queue = &p_spq->pending; 752316485Sdavidcs } 753316485Sdavidcs 754316485Sdavidcs *pp_ent = p_ent; 755316485Sdavidcs 756316485Sdavidcsout_unlock: 757316485Sdavidcs OSAL_SPIN_UNLOCK(&p_spq->lock); 758316485Sdavidcs return rc; 759316485Sdavidcs} 760316485Sdavidcs 761316485Sdavidcs/* Locked variant; Should be called while the SPQ lock is taken */ 762316485Sdavidcsstatic void __ecore_spq_return_entry(struct ecore_hwfn *p_hwfn, 763316485Sdavidcs struct ecore_spq_entry *p_ent) 764316485Sdavidcs{ 765316485Sdavidcs OSAL_LIST_PUSH_TAIL(&p_ent->list, &p_hwfn->p_spq->free_pool); 766316485Sdavidcs} 767316485Sdavidcs 768316485Sdavidcsvoid ecore_spq_return_entry(struct ecore_hwfn *p_hwfn, 769316485Sdavidcs struct ecore_spq_entry *p_ent) 770316485Sdavidcs{ 771316485Sdavidcs OSAL_SPIN_LOCK(&p_hwfn->p_spq->lock); 772316485Sdavidcs __ecore_spq_return_entry(p_hwfn, p_ent); 773316485Sdavidcs OSAL_SPIN_UNLOCK(&p_hwfn->p_spq->lock); 774316485Sdavidcs} 775316485Sdavidcs 776316485Sdavidcs/** 777316485Sdavidcs * @brief ecore_spq_add_entry - adds a new entry to the pending 778316485Sdavidcs * list. Should be used while lock is being held. 779316485Sdavidcs * 780316485Sdavidcs * Addes an entry to the pending list is there is room (en empty 781320164Sdavidcs * element is avaliable in the free_pool), or else places the 782316485Sdavidcs * entry in the unlimited_pending pool. 783316485Sdavidcs * 784316485Sdavidcs * @param p_hwfn 785316485Sdavidcs * @param p_ent 786316485Sdavidcs * @param priority 787316485Sdavidcs * 788316485Sdavidcs * @return enum _ecore_status_t 789316485Sdavidcs */ 790316485Sdavidcsstatic enum _ecore_status_t ecore_spq_add_entry(struct ecore_hwfn *p_hwfn, 791316485Sdavidcs struct ecore_spq_entry *p_ent, 792316485Sdavidcs enum spq_priority priority) 793316485Sdavidcs{ 794316485Sdavidcs struct ecore_spq *p_spq = p_hwfn->p_spq; 795316485Sdavidcs 796316485Sdavidcs if (p_ent->queue == &p_spq->unlimited_pending) { 797316485Sdavidcs if (OSAL_LIST_IS_EMPTY(&p_spq->free_pool)) { 798316485Sdavidcs 799316485Sdavidcs OSAL_LIST_PUSH_TAIL(&p_ent->list, 800316485Sdavidcs &p_spq->unlimited_pending); 801316485Sdavidcs p_spq->unlimited_pending_count++; 802316485Sdavidcs 803316485Sdavidcs return ECORE_SUCCESS; 804316485Sdavidcs 805316485Sdavidcs } else { 806316485Sdavidcs struct ecore_spq_entry *p_en2; 807316485Sdavidcs 808316485Sdavidcs p_en2 = OSAL_LIST_FIRST_ENTRY(&p_spq->free_pool, 809316485Sdavidcs struct ecore_spq_entry, 810316485Sdavidcs list); 811316485Sdavidcs OSAL_LIST_REMOVE_ENTRY(&p_en2->list, &p_spq->free_pool); 812316485Sdavidcs 813316485Sdavidcs /* Copy the ring element physical pointer to the new 814316485Sdavidcs * entry, since we are about to override the entire ring 815316485Sdavidcs * entry and don't want to lose the pointer. 816316485Sdavidcs */ 817316485Sdavidcs p_ent->elem.data_ptr = p_en2->elem.data_ptr; 818316485Sdavidcs 819316485Sdavidcs *p_en2 = *p_ent; 820316485Sdavidcs 821316485Sdavidcs /* EBLOCK responsible to free the allocated p_ent */ 822316485Sdavidcs if (p_ent->comp_mode != ECORE_SPQ_MODE_EBLOCK) 823316485Sdavidcs OSAL_FREE(p_hwfn->p_dev, p_ent); 824316485Sdavidcs 825316485Sdavidcs p_ent = p_en2; 826316485Sdavidcs } 827316485Sdavidcs } 828316485Sdavidcs 829316485Sdavidcs /* entry is to be placed in 'pending' queue */ 830316485Sdavidcs switch (priority) { 831316485Sdavidcs case ECORE_SPQ_PRIORITY_NORMAL: 832316485Sdavidcs OSAL_LIST_PUSH_TAIL(&p_ent->list, &p_spq->pending); 833316485Sdavidcs p_spq->normal_count++; 834316485Sdavidcs break; 835316485Sdavidcs case ECORE_SPQ_PRIORITY_HIGH: 836316485Sdavidcs OSAL_LIST_PUSH_HEAD(&p_ent->list, &p_spq->pending); 837316485Sdavidcs p_spq->high_count++; 838316485Sdavidcs break; 839316485Sdavidcs default: 840316485Sdavidcs return ECORE_INVAL; 841316485Sdavidcs } 842316485Sdavidcs 843316485Sdavidcs return ECORE_SUCCESS; 844316485Sdavidcs} 845316485Sdavidcs 846316485Sdavidcs/*************************************************************************** 847316485Sdavidcs * Accessor 848316485Sdavidcs ***************************************************************************/ 849316485Sdavidcs 850316485Sdavidcsu32 ecore_spq_get_cid(struct ecore_hwfn *p_hwfn) 851316485Sdavidcs{ 852316485Sdavidcs if (!p_hwfn->p_spq) { 853316485Sdavidcs return 0xffffffff; /* illegal */ 854316485Sdavidcs } 855316485Sdavidcs return p_hwfn->p_spq->cid; 856316485Sdavidcs} 857316485Sdavidcs 858316485Sdavidcs/*************************************************************************** 859316485Sdavidcs * Posting new Ramrods 860316485Sdavidcs ***************************************************************************/ 861316485Sdavidcs 862316485Sdavidcsstatic enum _ecore_status_t ecore_spq_post_list(struct ecore_hwfn *p_hwfn, 863316485Sdavidcs osal_list_t *head, 864316485Sdavidcs u32 keep_reserve) 865316485Sdavidcs{ 866316485Sdavidcs struct ecore_spq *p_spq = p_hwfn->p_spq; 867316485Sdavidcs enum _ecore_status_t rc; 868316485Sdavidcs 869316485Sdavidcs /* TODO - implementation might be wasteful; will always keep room 870316485Sdavidcs * for an additional high priority ramrod (even if one is already 871316485Sdavidcs * pending FW) 872316485Sdavidcs */ 873316485Sdavidcs while (ecore_chain_get_elem_left(&p_spq->chain) > keep_reserve && 874316485Sdavidcs !OSAL_LIST_IS_EMPTY(head)) { 875316485Sdavidcs struct ecore_spq_entry *p_ent = 876316485Sdavidcs OSAL_LIST_FIRST_ENTRY(head, struct ecore_spq_entry, list); 877316485Sdavidcs if (p_ent != OSAL_NULL) { 878316485Sdavidcs#if defined(_NTDDK_) 879316485Sdavidcs#pragma warning(suppress : 6011 28182) 880316485Sdavidcs#endif 881316485Sdavidcs OSAL_LIST_REMOVE_ENTRY(&p_ent->list, head); 882316485Sdavidcs OSAL_LIST_PUSH_TAIL(&p_ent->list, &p_spq->completion_pending); 883316485Sdavidcs p_spq->comp_sent_count++; 884316485Sdavidcs 885316485Sdavidcs rc = ecore_spq_hw_post(p_hwfn, p_spq, p_ent); 886316485Sdavidcs if (rc) { 887316485Sdavidcs OSAL_LIST_REMOVE_ENTRY(&p_ent->list, 888316485Sdavidcs &p_spq->completion_pending); 889316485Sdavidcs __ecore_spq_return_entry(p_hwfn, p_ent); 890316485Sdavidcs return rc; 891316485Sdavidcs } 892316485Sdavidcs } 893316485Sdavidcs } 894316485Sdavidcs 895316485Sdavidcs return ECORE_SUCCESS; 896316485Sdavidcs} 897316485Sdavidcs 898337517Sdavidcsenum _ecore_status_t ecore_spq_pend_post(struct ecore_hwfn *p_hwfn) 899316485Sdavidcs{ 900316485Sdavidcs struct ecore_spq *p_spq = p_hwfn->p_spq; 901316485Sdavidcs struct ecore_spq_entry *p_ent = OSAL_NULL; 902316485Sdavidcs 903316485Sdavidcs while (!OSAL_LIST_IS_EMPTY(&p_spq->free_pool)) 904316485Sdavidcs { 905316485Sdavidcs if (OSAL_LIST_IS_EMPTY(&p_spq->unlimited_pending)) 906316485Sdavidcs break; 907316485Sdavidcs 908316485Sdavidcs p_ent = OSAL_LIST_FIRST_ENTRY(&p_spq->unlimited_pending, 909316485Sdavidcs struct ecore_spq_entry, 910316485Sdavidcs list); 911316485Sdavidcs if (!p_ent) 912316485Sdavidcs return ECORE_INVAL; 913316485Sdavidcs 914316485Sdavidcs#if defined(_NTDDK_) 915316485Sdavidcs#pragma warning(suppress : 6011) 916316485Sdavidcs#endif 917316485Sdavidcs OSAL_LIST_REMOVE_ENTRY(&p_ent->list, &p_spq->unlimited_pending); 918316485Sdavidcs 919316485Sdavidcs ecore_spq_add_entry(p_hwfn, p_ent, p_ent->priority); 920316485Sdavidcs } 921316485Sdavidcs 922316485Sdavidcs return ecore_spq_post_list(p_hwfn, &p_spq->pending, 923316485Sdavidcs SPQ_HIGH_PRI_RESERVE_DEFAULT); 924316485Sdavidcs} 925316485Sdavidcs 926316485Sdavidcsenum _ecore_status_t ecore_spq_post(struct ecore_hwfn *p_hwfn, 927316485Sdavidcs struct ecore_spq_entry *p_ent, 928316485Sdavidcs u8 *fw_return_code) 929316485Sdavidcs{ 930316485Sdavidcs enum _ecore_status_t rc = ECORE_SUCCESS; 931316485Sdavidcs struct ecore_spq *p_spq = p_hwfn ? p_hwfn->p_spq : OSAL_NULL; 932316485Sdavidcs bool b_ret_ent = true; 933316485Sdavidcs 934316485Sdavidcs if (!p_hwfn) 935316485Sdavidcs return ECORE_INVAL; 936316485Sdavidcs 937316485Sdavidcs if (!p_ent) { 938316485Sdavidcs DP_NOTICE(p_hwfn, true, "Got a NULL pointer\n"); 939316485Sdavidcs return ECORE_INVAL; 940316485Sdavidcs } 941316485Sdavidcs 942316485Sdavidcs if (p_hwfn->p_dev->recov_in_prog) { 943316485Sdavidcs DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, 944316485Sdavidcs "Recovery is in progress -> skip spq post [cmd %02x protocol %02x]\n", 945316485Sdavidcs p_ent->elem.hdr.cmd_id, p_ent->elem.hdr.protocol_id); 946316485Sdavidcs /* Return success to let the flows to be completed successfully 947316485Sdavidcs * w/o any error handling. 948316485Sdavidcs */ 949316485Sdavidcs return ECORE_SUCCESS; 950316485Sdavidcs } 951316485Sdavidcs 952316485Sdavidcs OSAL_SPIN_LOCK(&p_spq->lock); 953316485Sdavidcs 954316485Sdavidcs /* Complete the entry */ 955316485Sdavidcs rc = ecore_spq_fill_entry(p_hwfn, p_ent); 956316485Sdavidcs 957316485Sdavidcs /* Check return value after LOCK is taken for cleaner error flow */ 958316485Sdavidcs if (rc) 959316485Sdavidcs goto spq_post_fail; 960316485Sdavidcs 961316485Sdavidcs /* Add the request to the pending queue */ 962316485Sdavidcs rc = ecore_spq_add_entry(p_hwfn, p_ent, p_ent->priority); 963316485Sdavidcs if (rc) 964316485Sdavidcs goto spq_post_fail; 965316485Sdavidcs 966316485Sdavidcs rc = ecore_spq_pend_post(p_hwfn); 967316485Sdavidcs if (rc) { 968316485Sdavidcs /* Since it's possible that pending failed for a different 969316485Sdavidcs * entry [although unlikely], the failed entry was already 970316485Sdavidcs * dealt with; No need to return it here. 971316485Sdavidcs */ 972316485Sdavidcs b_ret_ent = false; 973316485Sdavidcs goto spq_post_fail; 974316485Sdavidcs } 975316485Sdavidcs 976316485Sdavidcs OSAL_SPIN_UNLOCK(&p_spq->lock); 977316485Sdavidcs 978316485Sdavidcs if (p_ent->comp_mode == ECORE_SPQ_MODE_EBLOCK) { 979316485Sdavidcs /* For entries in ECORE BLOCK mode, the completion code cannot 980316485Sdavidcs * perform the necessary cleanup - if it did, we couldn't 981316485Sdavidcs * access p_ent here to see whether it's successful or not. 982320164Sdavidcs * Thus, after gaining the answer perform the cleanup here. 983316485Sdavidcs */ 984316485Sdavidcs rc = ecore_spq_block(p_hwfn, p_ent, fw_return_code, 985316485Sdavidcs p_ent->queue == &p_spq->unlimited_pending); 986316485Sdavidcs 987316485Sdavidcs if (p_ent->queue == &p_spq->unlimited_pending) { 988316485Sdavidcs /* This is an allocated p_ent which does not need to 989316485Sdavidcs * return to pool. 990316485Sdavidcs */ 991316485Sdavidcs OSAL_FREE(p_hwfn->p_dev, p_ent); 992316485Sdavidcs 993316485Sdavidcs /* TBD: handle error flow and remove p_ent from 994316485Sdavidcs * completion pending 995316485Sdavidcs */ 996316485Sdavidcs return rc; 997316485Sdavidcs } 998316485Sdavidcs 999316485Sdavidcs if (rc) 1000316485Sdavidcs goto spq_post_fail2; 1001316485Sdavidcs 1002316485Sdavidcs /* return to pool */ 1003316485Sdavidcs ecore_spq_return_entry(p_hwfn, p_ent); 1004316485Sdavidcs } 1005316485Sdavidcs return rc; 1006316485Sdavidcs 1007316485Sdavidcsspq_post_fail2: 1008316485Sdavidcs OSAL_SPIN_LOCK(&p_spq->lock); 1009316485Sdavidcs OSAL_LIST_REMOVE_ENTRY(&p_ent->list, &p_spq->completion_pending); 1010316485Sdavidcs ecore_chain_return_produced(&p_spq->chain); 1011316485Sdavidcs 1012316485Sdavidcsspq_post_fail: 1013316485Sdavidcs /* return to the free pool */ 1014316485Sdavidcs if (b_ret_ent) 1015316485Sdavidcs __ecore_spq_return_entry(p_hwfn, p_ent); 1016316485Sdavidcs OSAL_SPIN_UNLOCK(&p_spq->lock); 1017316485Sdavidcs 1018316485Sdavidcs return rc; 1019316485Sdavidcs} 1020316485Sdavidcs 1021316485Sdavidcsenum _ecore_status_t ecore_spq_completion(struct ecore_hwfn *p_hwfn, 1022316485Sdavidcs __le16 echo, 1023316485Sdavidcs u8 fw_return_code, 1024316485Sdavidcs union event_ring_data *p_data) 1025316485Sdavidcs{ 1026316485Sdavidcs struct ecore_spq *p_spq; 1027316485Sdavidcs struct ecore_spq_entry *p_ent = OSAL_NULL; 1028316485Sdavidcs struct ecore_spq_entry *tmp; 1029316485Sdavidcs struct ecore_spq_entry *found = OSAL_NULL; 1030316485Sdavidcs 1031316485Sdavidcs if (!p_hwfn) { 1032316485Sdavidcs return ECORE_INVAL; 1033316485Sdavidcs } 1034316485Sdavidcs 1035316485Sdavidcs p_spq = p_hwfn->p_spq; 1036316485Sdavidcs if (!p_spq) { 1037316485Sdavidcs return ECORE_INVAL; 1038316485Sdavidcs } 1039316485Sdavidcs 1040316485Sdavidcs OSAL_SPIN_LOCK(&p_spq->lock); 1041316485Sdavidcs OSAL_LIST_FOR_EACH_ENTRY_SAFE(p_ent, 1042316485Sdavidcs tmp, 1043316485Sdavidcs &p_spq->completion_pending, 1044316485Sdavidcs list, 1045316485Sdavidcs struct ecore_spq_entry) { 1046316485Sdavidcs 1047316485Sdavidcs if (p_ent->elem.hdr.echo == echo) { 1048316485Sdavidcs OSAL_LIST_REMOVE_ENTRY(&p_ent->list, 1049316485Sdavidcs &p_spq->completion_pending); 1050316485Sdavidcs 1051316485Sdavidcs /* Avoid overriding of SPQ entries when getting 1052316485Sdavidcs * out-of-order completions, by marking the completions 1053316485Sdavidcs * in a bitmap and increasing the chain consumer only 1054316485Sdavidcs * for the first successive completed entries. 1055316485Sdavidcs */ 1056316485Sdavidcs SPQ_COMP_BMAP_SET_BIT(p_spq, echo); 1057316485Sdavidcs while (SPQ_COMP_BMAP_TEST_BIT(p_spq, 1058316485Sdavidcs p_spq->comp_bitmap_idx)) { 1059316485Sdavidcs SPQ_COMP_BMAP_CLEAR_BIT(p_spq, 1060316485Sdavidcs p_spq->comp_bitmap_idx); 1061316485Sdavidcs p_spq->comp_bitmap_idx++; 1062316485Sdavidcs ecore_chain_return_produced(&p_spq->chain); 1063316485Sdavidcs } 1064316485Sdavidcs 1065316485Sdavidcs p_spq->comp_count++; 1066316485Sdavidcs found = p_ent; 1067316485Sdavidcs break; 1068316485Sdavidcs } 1069316485Sdavidcs 1070316485Sdavidcs /* This is debug and should be relatively uncommon - depends 1071316485Sdavidcs * on scenarios which have mutliple per-PF sent ramrods. 1072316485Sdavidcs */ 1073316485Sdavidcs DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, 1074316485Sdavidcs "Got completion for echo %04x - doesn't match echo %04x in completion pending list\n", 1075316485Sdavidcs OSAL_LE16_TO_CPU(echo), 1076316485Sdavidcs OSAL_LE16_TO_CPU(p_ent->elem.hdr.echo)); 1077316485Sdavidcs } 1078316485Sdavidcs 1079316485Sdavidcs /* Release lock before callback, as callback may post 1080316485Sdavidcs * an additional ramrod. 1081316485Sdavidcs */ 1082316485Sdavidcs OSAL_SPIN_UNLOCK(&p_spq->lock); 1083316485Sdavidcs 1084316485Sdavidcs if (!found) { 1085316485Sdavidcs DP_NOTICE(p_hwfn, true, 1086316485Sdavidcs "Failed to find an entry this EQE [echo %04x] completes\n", 1087316485Sdavidcs OSAL_LE16_TO_CPU(echo)); 1088316485Sdavidcs return ECORE_EXISTS; 1089316485Sdavidcs } 1090316485Sdavidcs 1091316485Sdavidcs DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, 1092316485Sdavidcs "Complete EQE [echo %04x]: func %p cookie %p)\n", 1093316485Sdavidcs OSAL_LE16_TO_CPU(echo), 1094316485Sdavidcs p_ent->comp_cb.function, p_ent->comp_cb.cookie); 1095316485Sdavidcs if (found->comp_cb.function) 1096316485Sdavidcs found->comp_cb.function(p_hwfn, found->comp_cb.cookie, p_data, 1097316485Sdavidcs fw_return_code); 1098316485Sdavidcs else 1099316485Sdavidcs DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, "Got a completion without a callback function\n"); 1100316485Sdavidcs 1101316485Sdavidcs if ((found->comp_mode != ECORE_SPQ_MODE_EBLOCK) || 1102316485Sdavidcs (found->queue == &p_spq->unlimited_pending)) 1103316485Sdavidcs /* EBLOCK is responsible for returning its own entry into the 1104316485Sdavidcs * free list, unless it originally added the entry into the 1105316485Sdavidcs * unlimited pending list. 1106316485Sdavidcs */ 1107316485Sdavidcs ecore_spq_return_entry(p_hwfn, found); 1108316485Sdavidcs 1109337517Sdavidcs return ECORE_SUCCESS; 1110316485Sdavidcs} 1111316485Sdavidcs 1112316485Sdavidcsenum _ecore_status_t ecore_consq_alloc(struct ecore_hwfn *p_hwfn) 1113316485Sdavidcs{ 1114316485Sdavidcs struct ecore_consq *p_consq; 1115316485Sdavidcs 1116316485Sdavidcs /* Allocate ConsQ struct */ 1117316485Sdavidcs p_consq = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*p_consq)); 1118316485Sdavidcs if (!p_consq) { 1119337517Sdavidcs DP_NOTICE(p_hwfn, false, 1120316485Sdavidcs "Failed to allocate `struct ecore_consq'\n"); 1121316485Sdavidcs return ECORE_NOMEM; 1122316485Sdavidcs } 1123316485Sdavidcs 1124316485Sdavidcs /* Allocate and initialize EQ chain*/ 1125316485Sdavidcs if (ecore_chain_alloc(p_hwfn->p_dev, 1126316485Sdavidcs ECORE_CHAIN_USE_TO_PRODUCE, 1127316485Sdavidcs ECORE_CHAIN_MODE_PBL, 1128316485Sdavidcs ECORE_CHAIN_CNT_TYPE_U16, 1129316485Sdavidcs ECORE_CHAIN_PAGE_SIZE/0x80, 1130316485Sdavidcs 0x80, 1131316485Sdavidcs &p_consq->chain, OSAL_NULL) != ECORE_SUCCESS) { 1132337517Sdavidcs DP_NOTICE(p_hwfn, false, "Failed to allocate consq chain"); 1133316485Sdavidcs goto consq_allocate_fail; 1134316485Sdavidcs } 1135316485Sdavidcs 1136316485Sdavidcs p_hwfn->p_consq = p_consq; 1137316485Sdavidcs return ECORE_SUCCESS; 1138316485Sdavidcs 1139316485Sdavidcsconsq_allocate_fail: 1140316485Sdavidcs OSAL_FREE(p_hwfn->p_dev, p_consq); 1141316485Sdavidcs return ECORE_NOMEM; 1142316485Sdavidcs} 1143316485Sdavidcs 1144316485Sdavidcsvoid ecore_consq_setup(struct ecore_hwfn *p_hwfn) 1145316485Sdavidcs{ 1146316485Sdavidcs ecore_chain_reset(&p_hwfn->p_consq->chain); 1147316485Sdavidcs} 1148316485Sdavidcs 1149316485Sdavidcsvoid ecore_consq_free(struct ecore_hwfn *p_hwfn) 1150316485Sdavidcs{ 1151316485Sdavidcs if (!p_hwfn->p_consq) 1152316485Sdavidcs return; 1153316485Sdavidcs 1154316485Sdavidcs ecore_chain_free(p_hwfn->p_dev, &p_hwfn->p_consq->chain); 1155316485Sdavidcs 1156316485Sdavidcs OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_consq); 1157316485Sdavidcs p_hwfn->p_consq = OSAL_NULL; 1158316485Sdavidcs} 1159337517Sdavidcs 1160337517Sdavidcs#ifdef _NTDDK_ 1161337517Sdavidcs#pragma warning(pop) 1162337517Sdavidcs#endif 1163