cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

qplib_sp.c (25591B)


      1/*
      2 * Broadcom NetXtreme-E RoCE driver.
      3 *
      4 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
      5 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
      6 *
      7 * This software is available to you under a choice of one of two
      8 * licenses.  You may choose to be licensed under the terms of the GNU
      9 * General Public License (GPL) Version 2, available from the file
     10 * COPYING in the main directory of this source tree, or the
     11 * BSD license below:
     12 *
     13 * Redistribution and use in source and binary forms, with or without
     14 * modification, are permitted provided that the following conditions
     15 * are met:
     16 *
     17 * 1. Redistributions of source code must retain the above copyright
     18 *    notice, this list of conditions and the following disclaimer.
     19 * 2. Redistributions in binary form must reproduce the above copyright
     20 *    notice, this list of conditions and the following disclaimer in
     21 *    the documentation and/or other materials provided with the
     22 *    distribution.
     23 *
     24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
     25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     26 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
     28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     31 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     33 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     34 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     35 *
     36 * Description: Slow Path Operators
     37 */
     38
     39#define dev_fmt(fmt) "QPLIB: " fmt
     40
     41#include <linux/interrupt.h>
     42#include <linux/spinlock.h>
     43#include <linux/sched.h>
     44#include <linux/pci.h>
     45
     46#include "roce_hsi.h"
     47
     48#include "qplib_res.h"
     49#include "qplib_rcfw.h"
     50#include "qplib_sp.h"
     51
     52const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
     53						     0, 0, 0, 0, 0, 0, 0, 0 } };
     54
     55/* Device */
     56
     57static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw)
     58{
     59	u16 pcie_ctl2 = 0;
     60
     61	if (!bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx))
     62		return false;
     63
     64	pcie_capability_read_word(rcfw->pdev, PCI_EXP_DEVCTL2, &pcie_ctl2);
     65	return (pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ);
     66}
     67
     68static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
     69				     char *fw_ver)
     70{
     71	struct cmdq_query_version req;
     72	struct creq_query_version_resp resp;
     73	u16 cmd_flags = 0;
     74	int rc = 0;
     75
     76	RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
     77
     78	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
     79					  (void *)&resp, NULL, 0);
     80	if (rc)
     81		return;
     82	fw_ver[0] = resp.fw_maj;
     83	fw_ver[1] = resp.fw_minor;
     84	fw_ver[2] = resp.fw_bld;
     85	fw_ver[3] = resp.fw_rsvd;
     86}
     87
     88int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
     89			    struct bnxt_qplib_dev_attr *attr, bool vf)
     90{
     91	struct cmdq_query_func req;
     92	struct creq_query_func_resp resp;
     93	struct bnxt_qplib_rcfw_sbuf *sbuf;
     94	struct creq_query_func_resp_sb *sb;
     95	u16 cmd_flags = 0;
     96	u32 temp;
     97	u8 *tqm_alloc;
     98	int i, rc = 0;
     99
    100	RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
    101
    102	sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
    103	if (!sbuf) {
    104		dev_err(&rcfw->pdev->dev,
    105			"SP: QUERY_FUNC alloc side buffer failed\n");
    106		return -ENOMEM;
    107	}
    108
    109	sb = sbuf->sb;
    110	req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
    111	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
    112					  (void *)sbuf, 0);
    113	if (rc)
    114		goto bail;
    115
    116	/* Extract the context from the side buffer */
    117	attr->max_qp = le32_to_cpu(sb->max_qp);
    118	/* max_qp value reported by FW for PF doesn't include the QP1 for PF */
    119	if (!vf)
    120		attr->max_qp += 1;
    121	attr->max_qp_rd_atom =
    122		sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
    123		BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
    124	attr->max_qp_init_rd_atom =
    125		sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
    126		BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
    127	attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
    128	/*
    129	 * 128 WQEs needs to be reserved for the HW (8916). Prevent
    130	 * reporting the max number
    131	 */
    132	attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS + 1;
    133	attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ?
    134			    6 : sb->max_sge;
    135	attr->max_cq = le32_to_cpu(sb->max_cq);
    136	attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
    137	attr->max_cq_sges = attr->max_qp_sges;
    138	attr->max_mr = le32_to_cpu(sb->max_mr);
    139	attr->max_mw = le32_to_cpu(sb->max_mw);
    140
    141	attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
    142	attr->max_pd = 64 * 1024;
    143	attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
    144	attr->max_ah = le32_to_cpu(sb->max_ah);
    145
    146	attr->max_srq = le16_to_cpu(sb->max_srq);
    147	attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
    148	attr->max_srq_sges = sb->max_srq_sge;
    149	attr->max_pkey = 1;
    150	attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
    151	attr->l2_db_size = (sb->l2_db_space_size + 1) *
    152			    (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
    153	attr->max_sgid = BNXT_QPLIB_NUM_GIDS_SUPPORTED;
    154	attr->dev_cap_flags = le16_to_cpu(sb->dev_cap_flags);
    155
    156	bnxt_qplib_query_version(rcfw, attr->fw_ver);
    157
    158	for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
    159		temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
    160		tqm_alloc = (u8 *)&temp;
    161		attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
    162		attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
    163		attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
    164		attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
    165	}
    166
    167	attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw);
    168bail:
    169	bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
    170	return rc;
    171}
    172
    173int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
    174				  struct bnxt_qplib_rcfw *rcfw,
    175				  struct bnxt_qplib_ctx *ctx)
    176{
    177	struct cmdq_set_func_resources req;
    178	struct creq_set_func_resources_resp resp;
    179	u16 cmd_flags = 0;
    180	int rc = 0;
    181
    182	RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
    183
    184	req.number_of_qp = cpu_to_le32(ctx->qpc_count);
    185	req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
    186	req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
    187	req.number_of_cq = cpu_to_le32(ctx->cq_count);
    188
    189	req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
    190	req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
    191	req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
    192	req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
    193	req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
    194
    195	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
    196					  (void *)&resp,
    197					  NULL, 0);
    198	if (rc) {
    199		dev_err(&res->pdev->dev, "Failed to set function resources\n");
    200	}
    201	return rc;
    202}
    203
    204/* SGID */
    205int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
    206			struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
    207			struct bnxt_qplib_gid *gid)
    208{
    209	if (index >= sgid_tbl->max) {
    210		dev_err(&res->pdev->dev,
    211			"Index %d exceeded SGID table max (%d)\n",
    212			index, sgid_tbl->max);
    213		return -EINVAL;
    214	}
    215	memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
    216	return 0;
    217}
    218
    219int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
    220			struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
    221{
    222	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
    223						   struct bnxt_qplib_res,
    224						   sgid_tbl);
    225	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    226	int index;
    227
    228	if (!sgid_tbl) {
    229		dev_err(&res->pdev->dev, "SGID table not allocated\n");
    230		return -EINVAL;
    231	}
    232	/* Do we need a sgid_lock here? */
    233	if (!sgid_tbl->active) {
    234		dev_err(&res->pdev->dev, "SGID table has no active entries\n");
    235		return -ENOMEM;
    236	}
    237	for (index = 0; index < sgid_tbl->max; index++) {
    238		if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
    239		    vlan_id == sgid_tbl->tbl[index].vlan_id)
    240			break;
    241	}
    242	if (index == sgid_tbl->max) {
    243		dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
    244		return 0;
    245	}
    246	/* Remove GID from the SGID table */
    247	if (update) {
    248		struct cmdq_delete_gid req;
    249		struct creq_delete_gid_resp resp;
    250		u16 cmd_flags = 0;
    251		int rc;
    252
    253		RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
    254		if (sgid_tbl->hw_id[index] == 0xFFFF) {
    255			dev_err(&res->pdev->dev,
    256				"GID entry contains an invalid HW id\n");
    257			return -EINVAL;
    258		}
    259		req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
    260		rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
    261						  (void *)&resp, NULL, 0);
    262		if (rc)
    263			return rc;
    264	}
    265	memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
    266	       sizeof(bnxt_qplib_gid_zero));
    267	sgid_tbl->tbl[index].vlan_id = 0xFFFF;
    268	sgid_tbl->vlan[index] = 0;
    269	sgid_tbl->active--;
    270	dev_dbg(&res->pdev->dev,
    271		"SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
    272		 index, sgid_tbl->hw_id[index], sgid_tbl->active);
    273	sgid_tbl->hw_id[index] = (u16)-1;
    274
    275	/* unlock */
    276	return 0;
    277}
    278
    279int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
    280			struct bnxt_qplib_gid *gid, const u8 *smac,
    281			u16 vlan_id, bool update, u32 *index)
    282{
    283	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
    284						   struct bnxt_qplib_res,
    285						   sgid_tbl);
    286	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    287	int i, free_idx;
    288
    289	if (!sgid_tbl) {
    290		dev_err(&res->pdev->dev, "SGID table not allocated\n");
    291		return -EINVAL;
    292	}
    293	/* Do we need a sgid_lock here? */
    294	if (sgid_tbl->active == sgid_tbl->max) {
    295		dev_err(&res->pdev->dev, "SGID table is full\n");
    296		return -ENOMEM;
    297	}
    298	free_idx = sgid_tbl->max;
    299	for (i = 0; i < sgid_tbl->max; i++) {
    300		if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
    301		    sgid_tbl->tbl[i].vlan_id == vlan_id) {
    302			dev_dbg(&res->pdev->dev,
    303				"SGID entry already exist in entry %d!\n", i);
    304			*index = i;
    305			return -EALREADY;
    306		} else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
    307				   sizeof(bnxt_qplib_gid_zero)) &&
    308			   free_idx == sgid_tbl->max) {
    309			free_idx = i;
    310		}
    311	}
    312	if (free_idx == sgid_tbl->max) {
    313		dev_err(&res->pdev->dev,
    314			"SGID table is FULL but count is not MAX??\n");
    315		return -ENOMEM;
    316	}
    317	if (update) {
    318		struct cmdq_add_gid req;
    319		struct creq_add_gid_resp resp;
    320		u16 cmd_flags = 0;
    321		int rc;
    322
    323		RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
    324
    325		req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
    326		req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
    327		req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
    328		req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
    329		/*
    330		 * driver should ensure that all RoCE traffic is always VLAN
    331		 * tagged if RoCE traffic is running on non-zero VLAN ID or
    332		 * RoCE traffic is running on non-zero Priority.
    333		 */
    334		if ((vlan_id != 0xFFFF) || res->prio) {
    335			if (vlan_id != 0xFFFF)
    336				req.vlan = cpu_to_le16
    337				(vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
    338			req.vlan |= cpu_to_le16
    339					(CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
    340					 CMDQ_ADD_GID_VLAN_VLAN_EN);
    341		}
    342
    343		/* MAC in network format */
    344		req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
    345		req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
    346		req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
    347
    348		rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
    349						  (void *)&resp, NULL, 0);
    350		if (rc)
    351			return rc;
    352		sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
    353	}
    354	/* Add GID to the sgid_tbl */
    355	memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
    356	sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
    357	sgid_tbl->active++;
    358	if (vlan_id != 0xFFFF)
    359		sgid_tbl->vlan[free_idx] = 1;
    360
    361	dev_dbg(&res->pdev->dev,
    362		"SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
    363		 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
    364
    365	*index = free_idx;
    366	/* unlock */
    367	return 0;
    368}
    369
    370int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
    371			   struct bnxt_qplib_gid *gid, u16 gid_idx,
    372			   const u8 *smac)
    373{
    374	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
    375						   struct bnxt_qplib_res,
    376						   sgid_tbl);
    377	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    378	struct creq_modify_gid_resp resp;
    379	struct cmdq_modify_gid req;
    380	int rc;
    381	u16 cmd_flags = 0;
    382
    383	RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
    384
    385	req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
    386	req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
    387	req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
    388	req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
    389	if (res->prio) {
    390		req.vlan |= cpu_to_le16
    391			(CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
    392			 CMDQ_ADD_GID_VLAN_VLAN_EN);
    393	}
    394
    395	/* MAC in network format */
    396	req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
    397	req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
    398	req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
    399
    400	req.gid_index = cpu_to_le16(gid_idx);
    401
    402	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
    403					  (void *)&resp, NULL, 0);
    404	return rc;
    405}
    406
    407/* AH */
    408int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
    409			 bool block)
    410{
    411	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    412	struct cmdq_create_ah req;
    413	struct creq_create_ah_resp resp;
    414	u16 cmd_flags = 0;
    415	u32 temp32[4];
    416	u16 temp16[3];
    417	int rc;
    418
    419	RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
    420
    421	memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
    422	req.dgid[0] = cpu_to_le32(temp32[0]);
    423	req.dgid[1] = cpu_to_le32(temp32[1]);
    424	req.dgid[2] = cpu_to_le32(temp32[2]);
    425	req.dgid[3] = cpu_to_le32(temp32[3]);
    426
    427	req.type = ah->nw_type;
    428	req.hop_limit = ah->hop_limit;
    429	req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
    430	req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
    431					CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
    432					CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
    433	req.pd_id = cpu_to_le32(ah->pd->id);
    434	req.traffic_class = ah->traffic_class;
    435
    436	/* MAC in network format */
    437	memcpy(temp16, ah->dmac, 6);
    438	req.dest_mac[0] = cpu_to_le16(temp16[0]);
    439	req.dest_mac[1] = cpu_to_le16(temp16[1]);
    440	req.dest_mac[2] = cpu_to_le16(temp16[2]);
    441
    442	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
    443					  NULL, block);
    444	if (rc)
    445		return rc;
    446
    447	ah->id = le32_to_cpu(resp.xid);
    448	return 0;
    449}
    450
    451void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
    452			   bool block)
    453{
    454	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    455	struct cmdq_destroy_ah req;
    456	struct creq_destroy_ah_resp resp;
    457	u16 cmd_flags = 0;
    458
    459	/* Clean up the AH table in the device */
    460	RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
    461
    462	req.ah_cid = cpu_to_le32(ah->id);
    463
    464	bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
    465				     block);
    466}
    467
    468/* MRW */
    469int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
    470{
    471	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    472	struct cmdq_deallocate_key req;
    473	struct creq_deallocate_key_resp resp;
    474	u16 cmd_flags = 0;
    475	int rc;
    476
    477	if (mrw->lkey == 0xFFFFFFFF) {
    478		dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
    479		return 0;
    480	}
    481
    482	RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
    483
    484	req.mrw_flags = mrw->type;
    485
    486	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
    487	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
    488	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
    489		req.key = cpu_to_le32(mrw->rkey);
    490	else
    491		req.key = cpu_to_le32(mrw->lkey);
    492
    493	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
    494					  NULL, 0);
    495	if (rc)
    496		return rc;
    497
    498	/* Free the qplib's MRW memory */
    499	if (mrw->hwq.max_elements)
    500		bnxt_qplib_free_hwq(res, &mrw->hwq);
    501
    502	return 0;
    503}
    504
    505int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
    506{
    507	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    508	struct cmdq_allocate_mrw req;
    509	struct creq_allocate_mrw_resp resp;
    510	u16 cmd_flags = 0;
    511	unsigned long tmp;
    512	int rc;
    513
    514	RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
    515
    516	req.pd_id = cpu_to_le32(mrw->pd->id);
    517	req.mrw_flags = mrw->type;
    518	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
    519	     mrw->flags & BNXT_QPLIB_FR_PMR) ||
    520	    mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
    521	    mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
    522		req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
    523	tmp = (unsigned long)mrw;
    524	req.mrw_handle = cpu_to_le64(tmp);
    525
    526	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
    527					  (void *)&resp, NULL, 0);
    528	if (rc)
    529		return rc;
    530
    531	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
    532	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
    533	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
    534		mrw->rkey = le32_to_cpu(resp.xid);
    535	else
    536		mrw->lkey = le32_to_cpu(resp.xid);
    537	return 0;
    538}
    539
    540int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
    541			 bool block)
    542{
    543	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    544	struct cmdq_deregister_mr req;
    545	struct creq_deregister_mr_resp resp;
    546	u16 cmd_flags = 0;
    547	int rc;
    548
    549	RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
    550
    551	req.lkey = cpu_to_le32(mrw->lkey);
    552	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
    553					  (void *)&resp, NULL, block);
    554	if (rc)
    555		return rc;
    556
    557	/* Free the qplib's MR memory */
    558	if (mrw->hwq.max_elements) {
    559		mrw->va = 0;
    560		mrw->total_size = 0;
    561		bnxt_qplib_free_hwq(res, &mrw->hwq);
    562	}
    563
    564	return 0;
    565}
    566
    567int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
    568		      struct ib_umem *umem, int num_pbls, u32 buf_pg_size)
    569{
    570	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    571	struct bnxt_qplib_hwq_attr hwq_attr = {};
    572	struct bnxt_qplib_sg_info sginfo = {};
    573	struct creq_register_mr_resp resp;
    574	struct cmdq_register_mr req;
    575	u16 cmd_flags = 0, level;
    576	int pages, rc;
    577	u32 pg_size;
    578
    579	if (num_pbls) {
    580		pages = roundup_pow_of_two(num_pbls);
    581		/* Allocate memory for the non-leaf pages to store buf ptrs.
    582		 * Non-leaf pages always uses system PAGE_SIZE
    583		 */
    584		/* Free the hwq if it already exist, must be a rereg */
    585		if (mr->hwq.max_elements)
    586			bnxt_qplib_free_hwq(res, &mr->hwq);
    587		/* Use system PAGE_SIZE */
    588		hwq_attr.res = res;
    589		hwq_attr.depth = pages;
    590		hwq_attr.stride = buf_pg_size;
    591		hwq_attr.type = HWQ_TYPE_MR;
    592		hwq_attr.sginfo = &sginfo;
    593		hwq_attr.sginfo->umem = umem;
    594		hwq_attr.sginfo->npages = pages;
    595		hwq_attr.sginfo->pgsize = PAGE_SIZE;
    596		hwq_attr.sginfo->pgshft = PAGE_SHIFT;
    597		rc = bnxt_qplib_alloc_init_hwq(&mr->hwq, &hwq_attr);
    598		if (rc) {
    599			dev_err(&res->pdev->dev,
    600				"SP: Reg MR memory allocation failed\n");
    601			return -ENOMEM;
    602		}
    603	}
    604
    605	RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
    606
    607	/* Configure the request */
    608	if (mr->hwq.level == PBL_LVL_MAX) {
    609		/* No PBL provided, just use system PAGE_SIZE */
    610		level = 0;
    611		req.pbl = 0;
    612		pg_size = PAGE_SIZE;
    613	} else {
    614		level = mr->hwq.level;
    615		req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
    616	}
    617	pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
    618	req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
    619			       ((ilog2(pg_size) <<
    620				 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
    621				CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
    622	req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
    623				 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
    624				CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
    625	req.access = (mr->flags & 0xFFFF);
    626	req.va = cpu_to_le64(mr->va);
    627	req.key = cpu_to_le32(mr->lkey);
    628	req.mr_size = cpu_to_le64(mr->total_size);
    629
    630	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
    631					  (void *)&resp, NULL, false);
    632	if (rc)
    633		goto fail;
    634
    635	return 0;
    636
    637fail:
    638	if (mr->hwq.max_elements)
    639		bnxt_qplib_free_hwq(res, &mr->hwq);
    640	return rc;
    641}
    642
    643int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
    644					struct bnxt_qplib_frpl *frpl,
    645					int max_pg_ptrs)
    646{
    647	struct bnxt_qplib_hwq_attr hwq_attr = {};
    648	struct bnxt_qplib_sg_info sginfo = {};
    649	int pg_ptrs, pages, rc;
    650
    651	/* Re-calculate the max to fit the HWQ allocation model */
    652	pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
    653	pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
    654	if (!pages)
    655		pages++;
    656
    657	if (pages > MAX_PBL_LVL_1_PGS)
    658		return -ENOMEM;
    659
    660	sginfo.pgsize = PAGE_SIZE;
    661	sginfo.nopte = true;
    662
    663	hwq_attr.res = res;
    664	hwq_attr.depth = pg_ptrs;
    665	hwq_attr.stride = PAGE_SIZE;
    666	hwq_attr.sginfo = &sginfo;
    667	hwq_attr.type = HWQ_TYPE_CTX;
    668	rc = bnxt_qplib_alloc_init_hwq(&frpl->hwq, &hwq_attr);
    669	if (!rc)
    670		frpl->max_pg_ptrs = pg_ptrs;
    671
    672	return rc;
    673}
    674
    675int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
    676				       struct bnxt_qplib_frpl *frpl)
    677{
    678	bnxt_qplib_free_hwq(res, &frpl->hwq);
    679	return 0;
    680}
    681
    682int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
    683{
    684	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
    685	struct cmdq_map_tc_to_cos req;
    686	struct creq_map_tc_to_cos_resp resp;
    687	u16 cmd_flags = 0;
    688
    689	RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
    690	req.cos0 = cpu_to_le16(cids[0]);
    691	req.cos1 = cpu_to_le16(cids[1]);
    692
    693	return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
    694						NULL, 0);
    695}
    696
    697int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
    698			      struct bnxt_qplib_roce_stats *stats)
    699{
    700	struct cmdq_query_roce_stats req;
    701	struct creq_query_roce_stats_resp resp;
    702	struct bnxt_qplib_rcfw_sbuf *sbuf;
    703	struct creq_query_roce_stats_resp_sb *sb;
    704	u16 cmd_flags = 0;
    705	int rc = 0;
    706
    707	RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
    708
    709	sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
    710	if (!sbuf) {
    711		dev_err(&rcfw->pdev->dev,
    712			"SP: QUERY_ROCE_STATS alloc side buffer failed\n");
    713		return -ENOMEM;
    714	}
    715
    716	sb = sbuf->sb;
    717	req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
    718	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
    719					  (void *)sbuf, 0);
    720	if (rc)
    721		goto bail;
    722	/* Extract the context from the side buffer */
    723	stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
    724	stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
    725	stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
    726	stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
    727	stats->missing_resp = le64_to_cpu(sb->missing_resp);
    728	stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
    729	stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
    730	stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
    731	stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
    732	stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
    733	stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
    734	stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
    735	stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
    736	stats->dup_req = le64_to_cpu(sb->dup_req);
    737	stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
    738	stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
    739	stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
    740	stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
    741	stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
    742	stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
    743	stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
    744	stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
    745	stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
    746	stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
    747	stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
    748	stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
    749	stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
    750	stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
    751	stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
    752	stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
    753	stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
    754	stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
    755	stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
    756	stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
    757	stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
    758	stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
    759	stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
    760	stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
    761	stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
    762	if (!rcfw->init_oos_stats) {
    763		rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
    764		rcfw->init_oos_stats = 1;
    765	} else {
    766		stats->res_oos_drop_count +=
    767				(le64_to_cpu(sb->res_oos_drop_count) -
    768				 rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
    769		rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
    770	}
    771
    772bail:
    773	bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
    774	return rc;
    775}
    776
    777int bnxt_qplib_qext_stat(struct bnxt_qplib_rcfw *rcfw, u32 fid,
    778			 struct bnxt_qplib_ext_stat *estat)
    779{
    780	struct creq_query_roce_stats_ext_resp resp = {};
    781	struct creq_query_roce_stats_ext_resp_sb *sb;
    782	struct cmdq_query_roce_stats_ext req = {};
    783	struct bnxt_qplib_rcfw_sbuf *sbuf;
    784	u16 cmd_flags = 0;
    785	int rc;
    786
    787	sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
    788	if (!sbuf) {
    789		dev_err(&rcfw->pdev->dev,
    790			"SP: QUERY_ROCE_STATS_EXT alloc sb failed");
    791		return -ENOMEM;
    792	}
    793
    794	RCFW_CMD_PREP(req, QUERY_ROCE_STATS_EXT, cmd_flags);
    795
    796	req.resp_size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS);
    797	req.resp_addr = cpu_to_le64(sbuf->dma_addr);
    798	req.function_id = cpu_to_le32(fid);
    799	req.flags = cpu_to_le16(CMDQ_QUERY_ROCE_STATS_EXT_FLAGS_FUNCTION_ID);
    800
    801	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
    802					  (void *)&resp, (void *)sbuf, 0);
    803	if (rc)
    804		goto bail;
    805
    806	sb = sbuf->sb;
    807	estat->tx_atomic_req = le64_to_cpu(sb->tx_atomic_req_pkts);
    808	estat->tx_read_req = le64_to_cpu(sb->tx_read_req_pkts);
    809	estat->tx_read_res = le64_to_cpu(sb->tx_read_res_pkts);
    810	estat->tx_write_req = le64_to_cpu(sb->tx_write_req_pkts);
    811	estat->tx_send_req = le64_to_cpu(sb->tx_send_req_pkts);
    812	estat->rx_atomic_req = le64_to_cpu(sb->rx_atomic_req_pkts);
    813	estat->rx_read_req = le64_to_cpu(sb->rx_read_req_pkts);
    814	estat->rx_read_res = le64_to_cpu(sb->rx_read_res_pkts);
    815	estat->rx_write_req = le64_to_cpu(sb->rx_write_req_pkts);
    816	estat->rx_send_req = le64_to_cpu(sb->rx_send_req_pkts);
    817	estat->rx_roce_good_pkts = le64_to_cpu(sb->rx_roce_good_pkts);
    818	estat->rx_roce_good_bytes = le64_to_cpu(sb->rx_roce_good_bytes);
    819	estat->rx_out_of_buffer = le64_to_cpu(sb->rx_out_of_buffer_pkts);
    820	estat->rx_out_of_sequence = le64_to_cpu(sb->rx_out_of_sequence_pkts);
    821
    822bail:
    823	bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
    824	return rc;
    825}