diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_spq.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_spq.c | 289 |
1 files changed, 163 insertions, 126 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_spq.c b/drivers/net/ethernet/qlogic/qed/qed_spq.c index eb88bbc6b193..d01b9245f811 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_spq.c +++ b/drivers/net/ethernet/qlogic/qed/qed_spq.c @@ -1,33 +1,7 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) /* QLogic qed NIC Driver * Copyright (c) 2015-2017 QLogic Corporation - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and /or other materials - * provided with the distribution. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. + * Copyright (c) 2019-2020 Marvell International Ltd. */ #include <linux/types.h> @@ -46,6 +20,7 @@ #include "qed_cxt.h" #include "qed_dev_api.h" #include "qed_hsi.h" +#include "qed_iro_hsi.h" #include "qed_hw.h" #include "qed_int.h" #include "qed_iscsi.h" @@ -57,8 +32,8 @@ #include "qed_rdma.h" /*************************************************************************** -* Structures & Definitions -***************************************************************************/ + * Structures & Definitions + ***************************************************************************/ #define SPQ_HIGH_PRI_RESERVE_DEFAULT (1) @@ -68,8 +43,8 @@ #define SPQ_BLOCK_SLEEP_MS (5) /*************************************************************************** -* Blocking Imp. (BLOCK/EBLOCK mode) -***************************************************************************/ + * Blocking Imp. (BLOCK/EBLOCK mode) + ***************************************************************************/ static void qed_spq_blocking_cb(struct qed_hwfn *p_hwfn, void *cookie, union event_ring_data *data, u8 fw_return_code) @@ -160,19 +135,26 @@ static int qed_spq_block(struct qed_hwfn *p_hwfn, return 0; } err: - DP_NOTICE(p_hwfn, - "Ramrod is stuck [CID %08x cmd %02x protocol %02x echo %04x]\n", - le32_to_cpu(p_ent->elem.hdr.cid), - p_ent->elem.hdr.cmd_id, - p_ent->elem.hdr.protocol_id, - le16_to_cpu(p_ent->elem.hdr.echo)); + p_ptt = qed_ptt_acquire(p_hwfn); + if (!p_ptt) + return -EBUSY; + qed_hw_err_notify(p_hwfn, p_ptt, QED_HW_ERR_RAMROD_FAIL, + "Ramrod is stuck [CID %08x %s:%02x %s:%02x echo %04x]\n", + le32_to_cpu(p_ent->elem.hdr.cid), + qed_get_ramrod_cmd_id_str(p_ent->elem.hdr.protocol_id, + p_ent->elem.hdr.cmd_id), + p_ent->elem.hdr.cmd_id, + qed_get_protocol_type_str(p_ent->elem.hdr.protocol_id), + p_ent->elem.hdr.protocol_id, + le16_to_cpu(p_ent->elem.hdr.echo)); + qed_ptt_release(p_hwfn, p_ptt); return -EBUSY; } /*************************************************************************** -* SPQ entries inner API -***************************************************************************/ + * SPQ entries inner API + ***************************************************************************/ static int qed_spq_fill_entry(struct qed_hwfn *p_hwfn, struct qed_spq_entry *p_ent) { @@ -191,13 +173,16 @@ static int qed_spq_fill_entry(struct qed_hwfn *p_hwfn, return -EINVAL; } - DP_VERBOSE(p_hwfn, QED_MSG_SPQ, - "Ramrod header: [CID 0x%08x CMD 0x%02x protocol 0x%02x] Data pointer: [%08x:%08x] Completion Mode: %s\n", + DP_VERBOSE(p_hwfn, + QED_MSG_SPQ, + "Ramrod hdr: [CID 0x%08x %s:0x%02x %s:0x%02x] Data ptr: [%08x:%08x] Cmpltion Mode: %s\n", p_ent->elem.hdr.cid, + qed_get_ramrod_cmd_id_str(p_ent->elem.hdr.protocol_id, + p_ent->elem.hdr.cmd_id), p_ent->elem.hdr.cmd_id, - p_ent->elem.hdr.protocol_id, - p_ent->elem.data_ptr.hi, - p_ent->elem.data_ptr.lo, + qed_get_protocol_type_str(p_ent->elem.hdr.protocol_id), + p_ent->elem.hdr.protocol_id, + p_ent->elem.data_ptr.hi, p_ent->elem.data_ptr.lo, D_TRINE(p_ent->comp_mode, QED_SPQ_MODE_EBLOCK, QED_SPQ_MODE_BLOCK, "MODE_EBLOCK", "MODE_BLOCK", "MODE_CB")); @@ -206,12 +191,12 @@ static int qed_spq_fill_entry(struct qed_hwfn *p_hwfn, } /*************************************************************************** -* HSI access -***************************************************************************/ + * HSI access + ***************************************************************************/ static void qed_spq_hw_initialize(struct qed_hwfn *p_hwfn, struct qed_spq *p_spq) { - struct e4_core_conn_context *p_cxt; + struct core_conn_context *p_cxt; struct qed_cxt_info cxt_info; u16 physical_q; int rc; @@ -229,23 +214,20 @@ static void qed_spq_hw_initialize(struct qed_hwfn *p_hwfn, p_cxt = cxt_info.p_cxt; SET_FIELD(p_cxt->xstorm_ag_context.flags10, - E4_XSTORM_CORE_CONN_AG_CTX_DQ_CF_EN, 1); + XSTORM_CORE_CONN_AG_CTX_DQ_CF_EN, 1); SET_FIELD(p_cxt->xstorm_ag_context.flags1, - E4_XSTORM_CORE_CONN_AG_CTX_DQ_CF_ACTIVE, 1); + XSTORM_CORE_CONN_AG_CTX_DQ_CF_ACTIVE, 1); SET_FIELD(p_cxt->xstorm_ag_context.flags9, - E4_XSTORM_CORE_CONN_AG_CTX_CONSOLID_PROD_CF_EN, 1); + XSTORM_CORE_CONN_AG_CTX_CONSOLID_PROD_CF_EN, 1); /* QM physical queue */ physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LB); p_cxt->xstorm_ag_context.physical_q0 = cpu_to_le16(physical_q); - p_cxt->xstorm_st_context.spq_base_lo = + p_cxt->xstorm_st_context.spq_base_addr.lo = DMA_LO_LE(p_spq->chain.p_phys_addr); - p_cxt->xstorm_st_context.spq_base_hi = + p_cxt->xstorm_st_context.spq_base_addr.hi = DMA_HI_LE(p_spq->chain.p_phys_addr); - - DMA_REGPAIR_LE(p_cxt->xstorm_st_context.consolid_base_addr, - p_hwfn->p_consq->chain.p_phys_addr); } static int qed_spq_hw_post(struct qed_hwfn *p_hwfn, @@ -287,16 +269,24 @@ static int qed_spq_hw_post(struct qed_hwfn *p_hwfn, } /*************************************************************************** -* Asynchronous events -***************************************************************************/ + * Asynchronous events + ***************************************************************************/ static int qed_async_event_completion(struct qed_hwfn *p_hwfn, struct event_ring_entry *p_eqe) { qed_spq_async_comp_cb cb; - if (!p_hwfn->p_spq || (p_eqe->protocol_id >= MAX_PROTOCOL_TYPE)) + if (!p_hwfn->p_spq) + return -EINVAL; + + if (p_eqe->protocol_id >= MAX_PROTOCOL_TYPE) { + DP_ERR(p_hwfn, "Wrong protocol: %s:%d\n", + qed_get_protocol_type_str(p_eqe->protocol_id), + p_eqe->protocol_id); + return -EINVAL; + } cb = p_hwfn->p_spq->async_comp_cb[p_eqe->protocol_id]; if (cb) { @@ -304,8 +294,10 @@ qed_async_event_completion(struct qed_hwfn *p_hwfn, &p_eqe->data, p_eqe->fw_return_code); } else { DP_NOTICE(p_hwfn, - "Unknown Async completion for protocol: %d\n", + "Unknown Async completion for %s:%d\n", + qed_get_protocol_type_str(p_eqe->protocol_id), p_eqe->protocol_id); + return -EINVAL; } } @@ -333,17 +325,14 @@ qed_spq_unregister_async_cb(struct qed_hwfn *p_hwfn, } /*************************************************************************** -* EQ API -***************************************************************************/ + * EQ API + ***************************************************************************/ void qed_eq_prod_update(struct qed_hwfn *p_hwfn, u16 prod) { - u32 addr = GTT_BAR0_MAP_REG_USDM_RAM + - USTORM_EQE_CONS_OFFSET(p_hwfn->rel_pf_id); + u32 addr = GET_GTT_REG_ADDR(GTT_BAR0_MAP_REG_USDM_RAM, + USTORM_EQE_CONS, p_hwfn->rel_pf_id); REG_WR16(p_hwfn, addr, prod); - - /* keep prod updates ordered */ - mmiowb(); } int qed_eq_completion(struct qed_hwfn *p_hwfn, void *cookie) @@ -397,27 +386,36 @@ int qed_eq_completion(struct qed_hwfn *p_hwfn, void *cookie) qed_eq_prod_update(p_hwfn, qed_chain_get_prod_idx(p_chain)); + /* Attempt to post pending requests */ + spin_lock_bh(&p_hwfn->p_spq->lock); + rc = qed_spq_pend_post(p_hwfn); + spin_unlock_bh(&p_hwfn->p_spq->lock); + return rc; } int qed_eq_alloc(struct qed_hwfn *p_hwfn, u16 num_elem) { + struct qed_chain_init_params params = { + .mode = QED_CHAIN_MODE_PBL, + .intended_use = QED_CHAIN_USE_TO_PRODUCE, + .cnt_type = QED_CHAIN_CNT_TYPE_U16, + .num_elems = num_elem, + .elem_size = sizeof(union event_ring_element), + }; struct qed_eq *p_eq; + int ret; /* Allocate EQ struct */ p_eq = kzalloc(sizeof(*p_eq), GFP_KERNEL); if (!p_eq) return -ENOMEM; - /* Allocate and initialize EQ chain*/ - if (qed_chain_alloc(p_hwfn->cdev, - QED_CHAIN_USE_TO_PRODUCE, - QED_CHAIN_MODE_PBL, - QED_CHAIN_CNT_TYPE_U16, - num_elem, - sizeof(union event_ring_element), - &p_eq->chain, NULL)) + ret = qed_chain_alloc(p_hwfn->cdev, &p_eq->chain, ¶ms); + if (ret) { + DP_NOTICE(p_hwfn, "Failed to allocate EQ chain\n"); goto eq_allocate_fail; + } /* register EQ completion on the SP SB */ qed_int_register_cb(p_hwfn, qed_eq_completion, @@ -428,7 +426,8 @@ int qed_eq_alloc(struct qed_hwfn *p_hwfn, u16 num_elem) eq_allocate_fail: kfree(p_eq); - return -ENOMEM; + + return ret; } void qed_eq_setup(struct qed_hwfn *p_hwfn) @@ -448,8 +447,8 @@ void qed_eq_free(struct qed_hwfn *p_hwfn) } /*************************************************************************** -* CQE API - manipulate EQ functionality -***************************************************************************/ + * CQE API - manipulate EQ functionality + ***************************************************************************/ static int qed_cqe_completion(struct qed_hwfn *p_hwfn, struct eth_slow_path_rx_cqe *cqe, enum protocol_type protocol) @@ -479,8 +478,8 @@ int qed_eth_cqe_completion(struct qed_hwfn *p_hwfn, } /*************************************************************************** -* Slow hwfn Queue (spq) -***************************************************************************/ + * Slow hwfn Queue (spq) + ***************************************************************************/ void qed_spq_setup(struct qed_hwfn *p_hwfn) { struct qed_spq *p_spq = p_hwfn->p_spq; @@ -549,33 +548,40 @@ void qed_spq_setup(struct qed_hwfn *p_hwfn) int qed_spq_alloc(struct qed_hwfn *p_hwfn) { + struct qed_chain_init_params params = { + .mode = QED_CHAIN_MODE_SINGLE, + .intended_use = QED_CHAIN_USE_TO_PRODUCE, + .cnt_type = QED_CHAIN_CNT_TYPE_U16, + .elem_size = sizeof(struct slow_path_element), + }; + struct qed_dev *cdev = p_hwfn->cdev; struct qed_spq_entry *p_virt = NULL; struct qed_spq *p_spq = NULL; dma_addr_t p_phys = 0; u32 capacity; + int ret; /* SPQ struct */ - p_spq = kzalloc(sizeof(struct qed_spq), GFP_KERNEL); + p_spq = kzalloc(sizeof(*p_spq), GFP_KERNEL); if (!p_spq) return -ENOMEM; - /* SPQ ring */ - if (qed_chain_alloc(p_hwfn->cdev, - QED_CHAIN_USE_TO_PRODUCE, - QED_CHAIN_MODE_SINGLE, - QED_CHAIN_CNT_TYPE_U16, - 0, /* N/A when the mode is SINGLE */ - sizeof(struct slow_path_element), - &p_spq->chain, NULL)) - goto spq_allocate_fail; + /* SPQ ring */ + ret = qed_chain_alloc(cdev, &p_spq->chain, ¶ms); + if (ret) { + DP_NOTICE(p_hwfn, "Failed to allocate SPQ chain\n"); + goto spq_chain_alloc_fail; + } /* allocate and fill the SPQ elements (incl. ramrod data list) */ capacity = qed_chain_get_capacity(&p_spq->chain); - p_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, + ret = -ENOMEM; + + p_virt = dma_alloc_coherent(&cdev->pdev->dev, capacity * sizeof(struct qed_spq_entry), &p_phys, GFP_KERNEL); if (!p_virt) - goto spq_allocate_fail; + goto spq_alloc_fail; p_spq->p_virt = p_virt; p_spq->p_phys = p_phys; @@ -583,10 +589,12 @@ int qed_spq_alloc(struct qed_hwfn *p_hwfn) return 0; -spq_allocate_fail: - qed_chain_free(p_hwfn->cdev, &p_spq->chain); +spq_alloc_fail: + qed_chain_free(cdev, &p_spq->chain); +spq_chain_alloc_fail: kfree(p_spq); - return -ENOMEM; + + return ret; } void qed_spq_free(struct qed_hwfn *p_hwfn) @@ -662,18 +670,18 @@ void qed_spq_return_entry(struct qed_hwfn *p_hwfn, struct qed_spq_entry *p_ent) } /** - * @brief qed_spq_add_entry - adds a new entry to the pending - * list. Should be used while lock is being held. + * qed_spq_add_entry() - Add a new entry to the pending list. + * Should be used while lock is being held. + * + * @p_hwfn: HW device data. + * @p_ent: An entry to add. + * @priority: Desired priority. * - * Addes an entry to the pending list is there is room (en empty + * Adds an entry to the pending list is there is room (an empty * element is available in the free_pool), or else places the * entry in the unlimited_pending pool. * - * @param p_hwfn - * @param p_ent - * @param priority - * - * @return int + * Return: zero on success, -EINVAL on invalid @priority. */ static int qed_spq_add_entry(struct qed_hwfn *p_hwfn, struct qed_spq_entry *p_ent, @@ -682,7 +690,6 @@ static int qed_spq_add_entry(struct qed_hwfn *p_hwfn, struct qed_spq *p_spq = p_hwfn->p_spq; if (p_ent->queue == &p_spq->unlimited_pending) { - if (list_empty(&p_spq->free_pool)) { list_add_tail(&p_ent->list, &p_spq->unlimited_pending); p_spq->unlimited_pending_count++; @@ -731,8 +738,8 @@ static int qed_spq_add_entry(struct qed_hwfn *p_hwfn, } /*************************************************************************** -* Accessor -***************************************************************************/ + * Accessor + ***************************************************************************/ u32 qed_spq_get_cid(struct qed_hwfn *p_hwfn) { if (!p_hwfn->p_spq) @@ -741,8 +748,8 @@ u32 qed_spq_get_cid(struct qed_hwfn *p_hwfn) } /*************************************************************************** -* Posting new Ramrods -***************************************************************************/ + * Posting new Ramrods + ***************************************************************************/ static int qed_spq_post_list(struct qed_hwfn *p_hwfn, struct list_head *head, u32 keep_reserve) { @@ -767,7 +774,7 @@ static int qed_spq_post_list(struct qed_hwfn *p_hwfn, return 0; } -static int qed_spq_pend_post(struct qed_hwfn *p_hwfn) +int qed_spq_pend_post(struct qed_hwfn *p_hwfn) { struct qed_spq *p_spq = p_hwfn->p_spq; struct qed_spq_entry *p_ent = NULL; @@ -790,6 +797,17 @@ static int qed_spq_pend_post(struct qed_hwfn *p_hwfn) SPQ_HIGH_PRI_RESERVE_DEFAULT); } +static void qed_spq_recov_set_ret_code(struct qed_spq_entry *p_ent, + u8 *fw_return_code) +{ + if (!fw_return_code) + return; + + if (p_ent->elem.hdr.protocol_id == PROTOCOLID_ROCE || + p_ent->elem.hdr.protocol_id == PROTOCOLID_IWARP) + *fw_return_code = RDMA_RETURN_OK; +} + /* Avoid overriding of SPQ entries when getting out-of-order completions, by * marking the completions in a bitmap and increasing the chain consumer only * for the first successive completed entries. @@ -825,6 +843,21 @@ int qed_spq_post(struct qed_hwfn *p_hwfn, return -EINVAL; } + if (p_hwfn->cdev->recov_in_prog) { + DP_VERBOSE(p_hwfn, + QED_MSG_SPQ, + "Recovery is in progress. Skip spq post [%s:%02x %s:%02x]\n", + qed_get_ramrod_cmd_id_str(p_ent->elem.hdr.protocol_id, + p_ent->elem.hdr.cmd_id), + p_ent->elem.hdr.cmd_id, + qed_get_protocol_type_str(p_ent->elem.hdr.protocol_id), + p_ent->elem.hdr.protocol_id); + + /* Let the flow complete w/o any error handling */ + qed_spq_recov_set_ret_code(p_ent, fw_return_code); + return 0; + } + /* Complete the entry */ rc = qed_spq_fill_entry(p_hwfn, p_ent); @@ -905,7 +938,6 @@ int qed_spq_completion(struct qed_hwfn *p_hwfn, struct qed_spq_entry *p_ent = NULL; struct qed_spq_entry *tmp; struct qed_spq_entry *found = NULL; - int rc; if (!p_hwfn) return -EINVAL; @@ -963,38 +995,43 @@ int qed_spq_completion(struct qed_hwfn *p_hwfn, */ qed_spq_return_entry(p_hwfn, found); - /* Attempt to post pending requests */ - spin_lock_bh(&p_spq->lock); - rc = qed_spq_pend_post(p_hwfn); - spin_unlock_bh(&p_spq->lock); - - return rc; + return 0; } +#define QED_SPQ_CONSQ_ELEM_SIZE 0x80 + int qed_consq_alloc(struct qed_hwfn *p_hwfn) { + struct qed_chain_init_params params = { + .mode = QED_CHAIN_MODE_PBL, + .intended_use = QED_CHAIN_USE_TO_PRODUCE, + .cnt_type = QED_CHAIN_CNT_TYPE_U16, + .num_elems = QED_CHAIN_PAGE_SIZE / QED_SPQ_CONSQ_ELEM_SIZE, + .elem_size = QED_SPQ_CONSQ_ELEM_SIZE, + }; struct qed_consq *p_consq; + int ret; /* Allocate ConsQ struct */ p_consq = kzalloc(sizeof(*p_consq), GFP_KERNEL); if (!p_consq) return -ENOMEM; - /* Allocate and initialize EQ chain*/ - if (qed_chain_alloc(p_hwfn->cdev, - QED_CHAIN_USE_TO_PRODUCE, - QED_CHAIN_MODE_PBL, - QED_CHAIN_CNT_TYPE_U16, - QED_CHAIN_PAGE_SIZE / 0x80, - 0x80, &p_consq->chain, NULL)) - goto consq_allocate_fail; + /* Allocate and initialize ConsQ chain */ + ret = qed_chain_alloc(p_hwfn->cdev, &p_consq->chain, ¶ms); + if (ret) { + DP_NOTICE(p_hwfn, "Failed to allocate ConsQ chain"); + goto consq_alloc_fail; + } p_hwfn->p_consq = p_consq; + return 0; -consq_allocate_fail: +consq_alloc_fail: kfree(p_consq); - return -ENOMEM; + + return ret; } void qed_consq_setup(struct qed_hwfn *p_hwfn) |