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freebsd-dev/sys/dev/qlnx/qlnxe/ecore_roce.c
David C Somayajulu fa790ea99f Add RDMA (iWARP and RoCEv1) support 
David Somayajulu (davidcs): Overall RDMA Driver infrastructure and iWARP
Anand Khoje (akhoje@marvell.com): RoCEv1 verbs implementation

MFC after:5 days
2019-01-31 00:09:38 +00:00

1580 lines
44 KiB
C
Raw Blame History

/*
* Copyright (c) 2018-2019 Cavium, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* File : ecore_roce.c
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "bcm_osal.h"
#include "ecore.h"
#include "ecore_status.h"
#include "ecore_sp_commands.h"
#include "ecore_cxt.h"
#include "ecore_rdma.h"
#include "reg_addr.h"
#include "ecore_rt_defs.h"
#include "ecore_init_ops.h"
#include "ecore_hw.h"
#include "ecore_mcp.h"
#include "ecore_init_fw_funcs.h"
#include "ecore_int.h"
#include "pcics_reg_driver.h"
#include "ecore_iro.h"
#include "ecore_gtt_reg_addr.h"
#ifndef LINUX_REMOVE
#include "ecore_tcp_ip.h"
#endif
#ifdef _NTDDK_
#pragma warning(push)
#pragma warning(disable : 28167)
#pragma warning(disable : 28123)
#pragma warning(disable : 28182)
#pragma warning(disable : 6011)
#endif
static void ecore_roce_free_icid(struct ecore_hwfn *p_hwfn, u16 icid);
static enum _ecore_status_t
ecore_roce_async_event(struct ecore_hwfn *p_hwfn,
u8 fw_event_code,
u16 OSAL_UNUSED echo,
union event_ring_data *data,
u8 OSAL_UNUSED fw_return_code)
{
if (fw_event_code == ROCE_ASYNC_EVENT_DESTROY_QP_DONE) {
u16 icid = (u16)OSAL_LE32_TO_CPU(
data->rdma_data.rdma_destroy_qp_data.cid);
/* icid release in this async event can occur only if the icid
* was offloaded to the FW. In case it wasn't offloaded this is
* handled in ecore_roce_sp_destroy_qp.
*/
ecore_roce_free_icid(p_hwfn, icid);
} else
p_hwfn->p_rdma_info->events.affiliated_event(
p_hwfn->p_rdma_info->events.context,
fw_event_code,
(void *)&data->rdma_data.async_handle);
return ECORE_SUCCESS;
}
#ifdef CONFIG_DCQCN
static enum _ecore_status_t ecore_roce_start_rl(
struct ecore_hwfn *p_hwfn,
struct ecore_roce_dcqcn_params *dcqcn_params)
{
struct ecore_rl_update_params params;
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "\n");
OSAL_MEMSET(&params, 0, sizeof(params));
params.rl_id_first = (u8)RESC_START(p_hwfn, ECORE_RL);
params.rl_id_last = RESC_START(p_hwfn, ECORE_RL) +
ecore_init_qm_get_num_pf_rls(p_hwfn);
params.dcqcn_update_param_flg = 1;
params.rl_init_flg = 1;
params.rl_start_flg = 1;
params.rl_stop_flg = 0;
params.rl_dc_qcn_flg = 1;
params.rl_bc_rate = dcqcn_params->rl_bc_rate;
params.rl_max_rate = dcqcn_params->rl_max_rate;
params.rl_r_ai = dcqcn_params->rl_r_ai;
params.rl_r_hai = dcqcn_params->rl_r_hai;
params.dcqcn_gd = dcqcn_params->dcqcn_gd;
params.dcqcn_k_us = dcqcn_params->dcqcn_k_us;
params.dcqcn_timeuot_us = dcqcn_params->dcqcn_timeout_us;
return ecore_sp_rl_update(p_hwfn, &params);
}
enum _ecore_status_t ecore_roce_stop_rl(struct ecore_hwfn *p_hwfn)
{
struct ecore_rl_update_params params;
if (!p_hwfn->p_rdma_info->roce.dcqcn_reaction_point)
return ECORE_SUCCESS;
OSAL_MEMSET(&params, 0, sizeof(params));
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "\n");
params.rl_id_first = (u8)RESC_START(p_hwfn, ECORE_RL);
params.rl_id_last = RESC_START(p_hwfn, ECORE_RL) +
ecore_init_qm_get_num_pf_rls(p_hwfn);
params.rl_stop_flg = 1;
return ecore_sp_rl_update(p_hwfn, &params);
}
#define NIG_REG_ROCE_DUPLICATE_TO_HOST_BTH 2
#define NIG_REG_ROCE_DUPLICATE_TO_HOST_ECN 1
enum _ecore_status_t ecore_roce_dcqcn_cfg(
struct ecore_hwfn *p_hwfn,
struct ecore_roce_dcqcn_params *params,
struct roce_init_func_ramrod_data *p_ramrod,
struct ecore_ptt *p_ptt)
{
u32 val = 0;
enum _ecore_status_t rc = ECORE_SUCCESS;
if (!p_hwfn->pf_params.rdma_pf_params.enable_dcqcn ||
p_hwfn->p_rdma_info->proto == PROTOCOLID_IWARP)
return rc;
p_hwfn->p_rdma_info->roce.dcqcn_enabled = 0;
if (params->notification_point) {
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA,
"Configuring dcqcn notification point: timeout = 0x%x\n",
params->cnp_send_timeout);
p_ramrod->roce.cnp_send_timeout = params->cnp_send_timeout;
p_hwfn->p_rdma_info->roce.dcqcn_enabled = 1;
/* Configure NIG to duplicate to host and storm when:
* - (ECN == 2'b11 (notification point)
*/
val |= 1 << NIG_REG_ROCE_DUPLICATE_TO_HOST_ECN;
}
if (params->reaction_point) {
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA,
"Configuring dcqcn reaction point\n");
p_hwfn->p_rdma_info->roce.dcqcn_enabled = 1;
p_hwfn->p_rdma_info->roce.dcqcn_reaction_point = 1;
/* Configure NIG to duplicate to host and storm when:
* - BTH opcode equals bth_hdr_flow_ctrl_opcode_2
* (reaction point)
*/
val |= 1 << NIG_REG_ROCE_DUPLICATE_TO_HOST_BTH;
rc = ecore_roce_start_rl(p_hwfn, params);
}
if (rc)
return rc;
p_ramrod->roce.cnp_dscp = params->cnp_dscp;
p_ramrod->roce.cnp_vlan_priority = params->cnp_vlan_priority;
ecore_wr(p_hwfn,
p_ptt,
NIG_REG_ROCE_DUPLICATE_TO_HOST,
val);
return rc;
}
#endif
enum _ecore_status_t ecore_roce_stop(struct ecore_hwfn *p_hwfn)
{
struct ecore_bmap *cid_map = &p_hwfn->p_rdma_info->cid_map;
int wait_count = 0;
/* when destroying a_RoCE QP the control is returned to the
* user after the synchronous part. The asynchronous part may
* take a little longer. We delay for a short while if an
* asyn destroy QP is still expected. Beyond the added delay
* we clear the bitmap anyway.
*/
while (OSAL_BITMAP_WEIGHT(cid_map->bitmap, cid_map->max_count)) {
OSAL_MSLEEP(100);
if (wait_count++ > 20) {
DP_NOTICE(p_hwfn, false,
"cid bitmap wait timed out\n");
break;
}
}
ecore_spq_unregister_async_cb(p_hwfn, PROTOCOLID_ROCE);
return ECORE_SUCCESS;
}
static void ecore_rdma_copy_gids(struct ecore_rdma_qp *qp, __le32 *src_gid,
__le32 *dst_gid) {
u32 i;
if (qp->roce_mode == ROCE_V2_IPV4) {
/* The IPv4 addresses shall be aligned to the highest word.
* The lower words must be zero.
*/
OSAL_MEMSET(src_gid, 0, sizeof(union ecore_gid));
OSAL_MEMSET(dst_gid, 0, sizeof(union ecore_gid));
src_gid[3] = OSAL_CPU_TO_LE32(qp->sgid.ipv4_addr);
dst_gid[3] = OSAL_CPU_TO_LE32(qp->dgid.ipv4_addr);
} else {
/* RoCE, and RoCE v2 - IPv6: GIDs and IPv6 addresses coincide in
* location and size
*/
for (i = 0; i < OSAL_ARRAY_SIZE(qp->sgid.dwords); i++) {
src_gid[i] = OSAL_CPU_TO_LE32(qp->sgid.dwords[i]);
dst_gid[i] = OSAL_CPU_TO_LE32(qp->dgid.dwords[i]);
}
}
}
static enum roce_flavor ecore_roce_mode_to_flavor(enum roce_mode roce_mode)
{
enum roce_flavor flavor;
switch (roce_mode) {
case ROCE_V1:
flavor = PLAIN_ROCE;
break;
case ROCE_V2_IPV4:
flavor = RROCE_IPV4;
break;
case ROCE_V2_IPV6:
flavor = (enum roce_flavor)ROCE_V2_IPV6;
break;
default:
flavor = (enum roce_flavor)MAX_ROCE_MODE;
break;
}
return flavor;
}
#if 0
static void ecore_roce_free_cid_pair(struct ecore_hwfn *p_hwfn, u16 cid)
{
OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock);
ecore_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->qp_map, cid);
ecore_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->qp_map, cid + 1);
OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock);
}
#endif
static void ecore_roce_free_qp(struct ecore_hwfn *p_hwfn, u16 qp_idx)
{
OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock);
ecore_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->qp_map, qp_idx);
OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock);
}
#define ECORE_ROCE_CREATE_QP_ATTEMPTS (20)
#define ECORE_ROCE_CREATE_QP_MSLEEP (10)
static enum _ecore_status_t ecore_roce_wait_free_cids(struct ecore_hwfn *p_hwfn, u32 qp_idx)
{
struct ecore_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
bool cids_free = false;
u32 icid, iter = 0;
int req, resp;
icid = ECORE_ROCE_QP_TO_ICID(qp_idx);
/* Make sure that the cids that were used by the QP index are free.
* This is necessary because the destroy flow returns to the user before
* the device finishes clean up.
* It can happen in the following flows:
* (1) ib_destroy_qp followed by an ib_create_qp
* (2) ib_modify_qp to RESET followed (not immediately), by an
* ib_modify_qp to RTR
*/
do {
OSAL_SPIN_LOCK(&p_rdma_info->lock);
resp = ecore_bmap_test_id(p_hwfn, &p_rdma_info->cid_map, icid);
req = ecore_bmap_test_id(p_hwfn, &p_rdma_info->cid_map, icid + 1);
if (!resp && !req)
cids_free = true;
OSAL_SPIN_UNLOCK(&p_rdma_info->lock);
if (!cids_free) {
OSAL_MSLEEP(ECORE_ROCE_CREATE_QP_MSLEEP);
iter++;
}
} while (!cids_free && iter < ECORE_ROCE_CREATE_QP_ATTEMPTS);
if (!cids_free) {
DP_ERR(p_hwfn->p_dev,
"responder and/or requester CIDs are still in use. resp=%d, req=%d\n",
resp, req);
return ECORE_AGAIN;
}
return ECORE_SUCCESS;
}
enum _ecore_status_t ecore_roce_alloc_qp_idx(
struct ecore_hwfn *p_hwfn, u16 *qp_idx16)
{
struct ecore_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
u32 start_cid, icid, cid, qp_idx;
enum _ecore_status_t rc;
OSAL_SPIN_LOCK(&p_rdma_info->lock);
rc = ecore_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->qp_map, &qp_idx);
if (rc != ECORE_SUCCESS) {
DP_NOTICE(p_hwfn, false, "failed to allocate qp\n");
OSAL_SPIN_UNLOCK(&p_rdma_info->lock);
return rc;
}
OSAL_SPIN_UNLOCK(&p_rdma_info->lock);
/* Verify the cid bits that of this qp index are clear */
rc = ecore_roce_wait_free_cids(p_hwfn, qp_idx);
if (rc) {
rc = ECORE_UNKNOWN_ERROR;
goto err;
}
/* Allocate a DMA-able context for an ILT page, if not existing, for the
* associated iids.
* Note: If second allocation fails there's no need to free the first as
* it will be used in the future.
*/
icid = ECORE_ROCE_QP_TO_ICID(qp_idx);
start_cid = ecore_cxt_get_proto_cid_start(p_hwfn, p_rdma_info->proto);
cid = start_cid + icid;
rc = ecore_cxt_dynamic_ilt_alloc(p_hwfn, ECORE_ELEM_CXT, cid);
if (rc != ECORE_SUCCESS)
goto err;
rc = ecore_cxt_dynamic_ilt_alloc(p_hwfn, ECORE_ELEM_CXT, cid + 1);
if (rc != ECORE_SUCCESS)
goto err;
/* qp index is under 2^16 */
*qp_idx16 = (u16)qp_idx;
return ECORE_SUCCESS;
err:
ecore_roce_free_qp(p_hwfn, (u16)qp_idx);
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "rc = %d\n", rc);
return rc;
}
static void ecore_roce_set_cid(struct ecore_hwfn *p_hwfn,
u32 cid)
{
OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock);
ecore_bmap_set_id(p_hwfn,
&p_hwfn->p_rdma_info->cid_map,
cid);
OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock);
}
static enum _ecore_status_t ecore_roce_sp_create_responder(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp)
{
struct roce_create_qp_resp_ramrod_data *p_ramrod;
u16 regular_latency_queue, low_latency_queue;
struct ecore_sp_init_data init_data;
enum roce_flavor roce_flavor;
struct ecore_spq_entry *p_ent;
enum _ecore_status_t rc;
u32 cid_start;
u16 fw_srq_id;
bool is_xrc;
if (!qp->has_resp)
return ECORE_SUCCESS;
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "qp_idx = %08x\n", qp->qp_idx);
/* Allocate DMA-able memory for IRQ */
qp->irq_num_pages = 1;
qp->irq = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev,
&qp->irq_phys_addr,
RDMA_RING_PAGE_SIZE);
if (!qp->irq) {
rc = ECORE_NOMEM;
DP_NOTICE(p_hwfn, false,
"ecore create responder failed: cannot allocate memory (irq). rc = %d\n",
rc);
return rc;
}
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = qp->icid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_CREATE_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
goto err;
p_ramrod = &p_ent->ramrod.roce_create_qp_resp;
p_ramrod->flags = 0;
roce_flavor = ecore_roce_mode_to_flavor(qp->roce_mode);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_ROCE_FLAVOR,
roce_flavor);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_RD_EN,
qp->incoming_rdma_read_en);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_WR_EN,
qp->incoming_rdma_write_en);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_ATOMIC_EN,
qp->incoming_atomic_en);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN,
qp->e2e_flow_control_en);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_SRQ_FLG,
qp->use_srq);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_RESERVED_KEY_EN,
qp->fmr_and_reserved_lkey);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_XRC_FLAG,
ecore_rdma_is_xrc_qp(qp));
/* TBD: future use only
* #define ROCE_CREATE_QP_RESP_RAMROD_DATA_PRI_MASK
* #define ROCE_CREATE_QP_RESP_RAMROD_DATA_PRI_SHIFT
*/
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER,
qp->min_rnr_nak_timer);
p_ramrod->max_ird =
qp->max_rd_atomic_resp;
p_ramrod->traffic_class = qp->traffic_class_tos;
p_ramrod->hop_limit = qp->hop_limit_ttl;
p_ramrod->irq_num_pages = qp->irq_num_pages;
p_ramrod->p_key = OSAL_CPU_TO_LE16(qp->pkey);
p_ramrod->flow_label = OSAL_CPU_TO_LE32(qp->flow_label);
p_ramrod->dst_qp_id = OSAL_CPU_TO_LE32(qp->dest_qp);
p_ramrod->mtu = OSAL_CPU_TO_LE16(qp->mtu);
p_ramrod->initial_psn = OSAL_CPU_TO_LE32(qp->rq_psn);
p_ramrod->pd = OSAL_CPU_TO_LE16(qp->pd);
p_ramrod->rq_num_pages = OSAL_CPU_TO_LE16(qp->rq_num_pages);
DMA_REGPAIR_LE(p_ramrod->rq_pbl_addr, qp->rq_pbl_ptr);
DMA_REGPAIR_LE(p_ramrod->irq_pbl_addr, qp->irq_phys_addr);
ecore_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
p_ramrod->qp_handle_for_async.hi =
OSAL_CPU_TO_LE32(qp->qp_handle_async.hi);
p_ramrod->qp_handle_for_async.lo =
OSAL_CPU_TO_LE32(qp->qp_handle_async.lo);
p_ramrod->qp_handle_for_cqe.hi = OSAL_CPU_TO_LE32(qp->qp_handle.hi);
p_ramrod->qp_handle_for_cqe.lo = OSAL_CPU_TO_LE32(qp->qp_handle.lo);
p_ramrod->cq_cid = OSAL_CPU_TO_LE32((p_hwfn->hw_info.opaque_fid << 16) | qp->rq_cq_id);
p_ramrod->xrc_domain = OSAL_CPU_TO_LE16(qp->xrcd_id);
#ifdef CONFIG_DCQCN
/* when dcqcn is enabled physical queues are determined accoridng to qp id */
if (p_hwfn->p_rdma_info->roce.dcqcn_enabled)
regular_latency_queue =
ecore_get_cm_pq_idx_rl(p_hwfn,
(qp->icid >> 1) %
ROCE_DCQCN_RP_MAX_QPS);
else
#endif
regular_latency_queue = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
low_latency_queue = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LLT);
p_ramrod->regular_latency_phy_queue = OSAL_CPU_TO_LE16(regular_latency_queue);
p_ramrod->low_latency_phy_queue = OSAL_CPU_TO_LE16(low_latency_queue);
p_ramrod->dpi = OSAL_CPU_TO_LE16(qp->dpi);
ecore_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr);
ecore_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr);
p_ramrod->udp_src_port = qp->udp_src_port;
p_ramrod->vlan_id = OSAL_CPU_TO_LE16(qp->vlan_id);
is_xrc = ecore_rdma_is_xrc_qp(qp);
fw_srq_id = ecore_rdma_get_fw_srq_id(p_hwfn, qp->srq_id, is_xrc);
p_ramrod->srq_id.srq_idx = OSAL_CPU_TO_LE16(fw_srq_id);
p_ramrod->srq_id.opaque_fid = OSAL_CPU_TO_LE16(p_hwfn->hw_info.opaque_fid);
p_ramrod->stats_counter_id = RESC_START(p_hwfn, ECORE_RDMA_STATS_QUEUE) +
qp->stats_queue;
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "rc = %d regular physical queue = 0x%x, low latency physical queue 0x%x\n",
rc, regular_latency_queue, low_latency_queue);
if (rc != ECORE_SUCCESS)
goto err;
qp->resp_offloaded = true;
qp->cq_prod.resp = 0;
cid_start = ecore_cxt_get_proto_cid_start(p_hwfn,
p_hwfn->p_rdma_info->proto);
ecore_roce_set_cid(p_hwfn, qp->icid - cid_start);
return rc;
err:
DP_NOTICE(p_hwfn, false, "create responder - failed, rc = %d\n", rc);
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
qp->irq,
qp->irq_phys_addr,
qp->irq_num_pages *
RDMA_RING_PAGE_SIZE);
return rc;
}
static enum _ecore_status_t ecore_roce_sp_create_requester(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp)
{
struct roce_create_qp_req_ramrod_data *p_ramrod;
u16 regular_latency_queue, low_latency_queue;
struct ecore_sp_init_data init_data;
enum roce_flavor roce_flavor;
struct ecore_spq_entry *p_ent;
enum _ecore_status_t rc;
u32 cid_start;
if (!qp->has_req)
return ECORE_SUCCESS;
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "icid = %08x\n", qp->icid);
/* Allocate DMA-able memory for ORQ */
qp->orq_num_pages = 1;
qp->orq = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev,
&qp->orq_phys_addr,
RDMA_RING_PAGE_SIZE);
if (!qp->orq)
{
rc = ECORE_NOMEM;
DP_NOTICE(p_hwfn, false,
"ecore create requester failed: cannot allocate memory (orq). rc = %d\n",
rc);
return rc;
}
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = qp->icid + 1;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent,
ROCE_RAMROD_CREATE_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
goto err;
p_ramrod = &p_ent->ramrod.roce_create_qp_req;
p_ramrod->flags = 0;
roce_flavor = ecore_roce_mode_to_flavor(qp->roce_mode);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_REQ_RAMROD_DATA_ROCE_FLAVOR,
roce_flavor);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_REQ_RAMROD_DATA_FMR_AND_RESERVED_EN,
qp->fmr_and_reserved_lkey);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_REQ_RAMROD_DATA_SIGNALED_COMP,
qp->signal_all);
/* TBD:
* future use only
* #define ROCE_CREATE_QP_REQ_RAMROD_DATA_PRI_MASK
* #define ROCE_CREATE_QP_REQ_RAMROD_DATA_PRI_SHIFT
*/
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT,
qp->retry_cnt);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_REQ_RAMROD_DATA_RNR_NAK_CNT,
qp->rnr_retry_cnt);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_REQ_RAMROD_DATA_XRC_FLAG,
ecore_rdma_is_xrc_qp(qp));
p_ramrod->max_ord = qp->max_rd_atomic_req;
p_ramrod->traffic_class = qp->traffic_class_tos;
p_ramrod->hop_limit = qp->hop_limit_ttl;
p_ramrod->orq_num_pages = qp->orq_num_pages;
p_ramrod->p_key = OSAL_CPU_TO_LE16(qp->pkey);
p_ramrod->flow_label = OSAL_CPU_TO_LE32(qp->flow_label);
p_ramrod->dst_qp_id = OSAL_CPU_TO_LE32(qp->dest_qp);
p_ramrod->ack_timeout_val = OSAL_CPU_TO_LE32(qp->ack_timeout);
p_ramrod->mtu = OSAL_CPU_TO_LE16(qp->mtu);
p_ramrod->initial_psn = OSAL_CPU_TO_LE32(qp->sq_psn);
p_ramrod->pd = OSAL_CPU_TO_LE16(qp->pd);
p_ramrod->sq_num_pages = OSAL_CPU_TO_LE16(qp->sq_num_pages);
DMA_REGPAIR_LE(p_ramrod->sq_pbl_addr, qp->sq_pbl_ptr);
DMA_REGPAIR_LE(p_ramrod->orq_pbl_addr, qp->orq_phys_addr);
ecore_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
p_ramrod->qp_handle_for_async.hi =
OSAL_CPU_TO_LE32(qp->qp_handle_async.hi);
p_ramrod->qp_handle_for_async.lo =
OSAL_CPU_TO_LE32(qp->qp_handle_async.lo);
p_ramrod->qp_handle_for_cqe.hi = OSAL_CPU_TO_LE32(qp->qp_handle.hi);
p_ramrod->qp_handle_for_cqe.lo = OSAL_CPU_TO_LE32(qp->qp_handle.lo);
p_ramrod->cq_cid = OSAL_CPU_TO_LE32((p_hwfn->hw_info.opaque_fid << 16) |
qp->sq_cq_id);
#ifdef CONFIG_DCQCN
/* when dcqcn is enabled physical queues are determined accoridng to qp id */
if (p_hwfn->p_rdma_info->roce.dcqcn_enabled)
regular_latency_queue =
ecore_get_cm_pq_idx_rl(p_hwfn,
(qp->icid >> 1) %
ROCE_DCQCN_RP_MAX_QPS);
else
#endif
regular_latency_queue = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
low_latency_queue = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LLT);
p_ramrod->regular_latency_phy_queue = OSAL_CPU_TO_LE16(regular_latency_queue);
p_ramrod->low_latency_phy_queue = OSAL_CPU_TO_LE16(low_latency_queue);
p_ramrod->dpi = OSAL_CPU_TO_LE16(qp->dpi);
ecore_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr);
ecore_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr);
p_ramrod->udp_src_port = qp->udp_src_port;
p_ramrod->vlan_id = OSAL_CPU_TO_LE16(qp->vlan_id);
p_ramrod->stats_counter_id = RESC_START(p_hwfn, ECORE_RDMA_STATS_QUEUE) +
qp->stats_queue;
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "rc = %d\n", rc);
if (rc != ECORE_SUCCESS)
goto err;
qp->req_offloaded = true;
qp->cq_prod.req = 0;
cid_start = ecore_cxt_get_proto_cid_start(p_hwfn,
p_hwfn->p_rdma_info->proto);
ecore_roce_set_cid(p_hwfn, qp->icid + 1 - cid_start);
return rc;
err:
DP_NOTICE(p_hwfn, false, "Create requested - failed, rc = %d\n", rc);
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
qp->orq,
qp->orq_phys_addr,
qp->orq_num_pages *
RDMA_RING_PAGE_SIZE);
return rc;
}
static enum _ecore_status_t ecore_roce_sp_modify_responder(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
bool move_to_err,
u32 modify_flags)
{
struct roce_modify_qp_resp_ramrod_data *p_ramrod;
struct ecore_sp_init_data init_data;
struct ecore_spq_entry *p_ent;
enum _ecore_status_t rc;
if (!qp->has_resp)
return ECORE_SUCCESS;
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "icid = %08x\n", qp->icid);
if (move_to_err && !qp->resp_offloaded)
return ECORE_SUCCESS;
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = qp->icid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent,
ROCE_EVENT_MODIFY_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
{
DP_NOTICE(p_hwfn, false, "rc = %d\n", rc);
return rc;
}
p_ramrod = &p_ent->ramrod.roce_modify_qp_resp;
p_ramrod->flags = 0;
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_MOVE_TO_ERR_FLG,
move_to_err);
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_RD_EN,
qp->incoming_rdma_read_en);
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_WR_EN,
qp->incoming_rdma_write_en);
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_ATOMIC_EN,
qp->incoming_atomic_en);
SET_FIELD(p_ramrod->flags,
ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN,
qp->e2e_flow_control_en);
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_OPS_EN_FLG,
GET_FIELD(modify_flags,
ECORE_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN));
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_P_KEY_FLG,
GET_FIELD(modify_flags, ECORE_ROCE_MODIFY_QP_VALID_PKEY));
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_ADDRESS_VECTOR_FLG,
GET_FIELD(modify_flags,
ECORE_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR));
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_MAX_IRD_FLG,
GET_FIELD(modify_flags,
ECORE_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP));
/* TBD: future use only
* #define ROCE_MODIFY_QP_RESP_RAMROD_DATA_PRI_FLG_MASK
* #define ROCE_MODIFY_QP_RESP_RAMROD_DATA_PRI_FLG_SHIFT
*/
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER_FLG,
GET_FIELD(modify_flags,
ECORE_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER));
p_ramrod->fields = 0;
SET_FIELD(p_ramrod->fields,
ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER,
qp->min_rnr_nak_timer);
p_ramrod->max_ird = qp->max_rd_atomic_resp;
p_ramrod->traffic_class = qp->traffic_class_tos;
p_ramrod->hop_limit = qp->hop_limit_ttl;
p_ramrod->p_key = OSAL_CPU_TO_LE16(qp->pkey);
p_ramrod->flow_label = OSAL_CPU_TO_LE32(qp->flow_label);
p_ramrod->mtu = OSAL_CPU_TO_LE16(qp->mtu);
ecore_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Modify responder, rc = %d\n", rc);
return rc;
}
static enum _ecore_status_t ecore_roce_sp_modify_requester(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
bool move_to_sqd,
bool move_to_err,
u32 modify_flags)
{
struct roce_modify_qp_req_ramrod_data *p_ramrod;
struct ecore_sp_init_data init_data;
struct ecore_spq_entry *p_ent;
enum _ecore_status_t rc;
if (!qp->has_req)
return ECORE_SUCCESS;
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "icid = %08x\n", qp->icid);
if (move_to_err && !(qp->req_offloaded))
return ECORE_SUCCESS;
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = qp->icid + 1;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent,
ROCE_EVENT_MODIFY_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS) {
DP_NOTICE(p_hwfn, false, "rc = %d\n", rc);
return rc;
}
p_ramrod = &p_ent->ramrod.roce_modify_qp_req;
p_ramrod->flags = 0;
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_ERR_FLG,
move_to_err);
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_SQD_FLG,
move_to_sqd);
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_EN_SQD_ASYNC_NOTIFY,
qp->sqd_async);
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_P_KEY_FLG,
GET_FIELD(modify_flags, ECORE_ROCE_MODIFY_QP_VALID_PKEY));
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_ADDRESS_VECTOR_FLG,
GET_FIELD(modify_flags,
ECORE_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR));
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_MAX_ORD_FLG,
GET_FIELD(modify_flags,
ECORE_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ));
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT_FLG,
GET_FIELD(modify_flags,
ECORE_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT));
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT_FLG,
GET_FIELD(modify_flags,
ECORE_ROCE_MODIFY_QP_VALID_RETRY_CNT));
SET_FIELD(p_ramrod->flags,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_ACK_TIMEOUT_FLG,
GET_FIELD(modify_flags,
ECORE_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT));
/* TBD: future use only
* #define ROCE_MODIFY_QP_REQ_RAMROD_DATA_PRI_FLG_MASK
* #define ROCE_MODIFY_QP_REQ_RAMROD_DATA_PRI_FLG_SHIFT
*/
p_ramrod->fields = 0;
SET_FIELD(p_ramrod->fields,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT,
qp->retry_cnt);
SET_FIELD(p_ramrod->fields,
ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT,
qp->rnr_retry_cnt);
p_ramrod->max_ord = qp->max_rd_atomic_req;
p_ramrod->traffic_class = qp->traffic_class_tos;
p_ramrod->hop_limit = qp->hop_limit_ttl;
p_ramrod->p_key = OSAL_CPU_TO_LE16(qp->pkey);
p_ramrod->flow_label = OSAL_CPU_TO_LE32(qp->flow_label);
p_ramrod->ack_timeout_val = OSAL_CPU_TO_LE32(qp->ack_timeout);
p_ramrod->mtu = OSAL_CPU_TO_LE16(qp->mtu);
ecore_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Modify requester, rc = %d\n", rc);
return rc;
}
static enum _ecore_status_t ecore_roce_sp_destroy_qp_responder(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
u32 *num_invalidated_mw,
u32 *cq_prod)
{
struct roce_destroy_qp_resp_output_params *p_ramrod_res;
struct roce_destroy_qp_resp_ramrod_data *p_ramrod;
struct ecore_sp_init_data init_data;
struct ecore_spq_entry *p_ent;
dma_addr_t ramrod_res_phys;
enum _ecore_status_t rc;
if (!qp->has_resp) {
*num_invalidated_mw = 0;
*cq_prod = 0;
return ECORE_SUCCESS;
}
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "icid = %08x\n", qp->icid);
*num_invalidated_mw = 0;
if (!qp->resp_offloaded) {
*cq_prod = qp->cq_prod.resp;
return ECORE_SUCCESS;
}
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = qp->icid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent,
ROCE_RAMROD_DESTROY_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
return rc;
p_ramrod = &p_ent->ramrod.roce_destroy_qp_resp;
p_ramrod_res = (struct roce_destroy_qp_resp_output_params *)OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev,
&ramrod_res_phys, sizeof(*p_ramrod_res));
if (!p_ramrod_res)
{
rc = ECORE_NOMEM;
DP_NOTICE(p_hwfn, false,
"ecore destroy responder failed: cannot allocate memory (ramrod). rc = %d\n",
rc);
return rc;
}
DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
if (rc != ECORE_SUCCESS)
goto err;
*num_invalidated_mw
= OSAL_LE32_TO_CPU(p_ramrod_res->num_invalidated_mw);
*cq_prod = OSAL_LE32_TO_CPU(p_ramrod_res->cq_prod);
qp->cq_prod.resp = *cq_prod;
/* Free IRQ - only if ramrod succeeded, in case FW is still using it */
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
qp->irq,
qp->irq_phys_addr,
qp->irq_num_pages *
RDMA_RING_PAGE_SIZE);
qp->resp_offloaded = false;
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Destroy responder, rc = %d\n", rc);
/* "fall through" */
err:
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, p_ramrod_res, ramrod_res_phys,
sizeof(*p_ramrod_res));
return rc;
}
static enum _ecore_status_t ecore_roce_sp_destroy_qp_requester(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
u32 *num_bound_mw,
u32 *cq_prod)
{
struct roce_destroy_qp_req_output_params *p_ramrod_res;
struct roce_destroy_qp_req_ramrod_data *p_ramrod;
struct ecore_sp_init_data init_data;
struct ecore_spq_entry *p_ent;
dma_addr_t ramrod_res_phys;
enum _ecore_status_t rc;
if (!qp->has_req) {
*num_bound_mw = 0;
*cq_prod = 0;
return ECORE_SUCCESS;
}
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "icid = %08x\n", qp->icid);
if (!qp->req_offloaded) {
*cq_prod = qp->cq_prod.req;
return ECORE_SUCCESS;
}
p_ramrod_res = (struct roce_destroy_qp_req_output_params *)
OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, &ramrod_res_phys,
sizeof(*p_ramrod_res));
if (!p_ramrod_res)
{
DP_NOTICE(p_hwfn, false,
"ecore destroy requester failed: cannot allocate memory (ramrod)\n");
return ECORE_NOMEM;
}
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = qp->icid + 1;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_DESTROY_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
goto err;
p_ramrod = &p_ent->ramrod.roce_destroy_qp_req;
DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
if (rc != ECORE_SUCCESS)
goto err;
*num_bound_mw = OSAL_LE32_TO_CPU(p_ramrod_res->num_bound_mw);
*cq_prod = OSAL_LE32_TO_CPU(p_ramrod_res->cq_prod);
qp->cq_prod.req = *cq_prod;
/* Free ORQ - only if ramrod succeeded, in case FW is still using it */
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
qp->orq,
qp->orq_phys_addr,
qp->orq_num_pages *
RDMA_RING_PAGE_SIZE);
qp->req_offloaded = false;
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Destroy requester, rc = %d\n", rc);
/* "fall through" */
err:
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, p_ramrod_res, ramrod_res_phys,
sizeof(*p_ramrod_res));
return rc;
}
static OSAL_INLINE enum _ecore_status_t ecore_roce_sp_query_responder(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
struct ecore_rdma_query_qp_out_params *out_params)
{
struct roce_query_qp_resp_output_params *p_resp_ramrod_res;
struct roce_query_qp_resp_ramrod_data *p_resp_ramrod;
struct ecore_sp_init_data init_data;
dma_addr_t resp_ramrod_res_phys;
struct ecore_spq_entry *p_ent;
enum _ecore_status_t rc = ECORE_SUCCESS;
bool error_flag;
if (!qp->resp_offloaded) {
/* Don't send query qp for the responder */
out_params->rq_psn = qp->rq_psn;
return ECORE_SUCCESS;
}
/* Send a query responder ramrod to the FW */
p_resp_ramrod_res = (struct roce_query_qp_resp_output_params *)
OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, &resp_ramrod_res_phys,
sizeof(*p_resp_ramrod_res));
if (!p_resp_ramrod_res)
{
DP_NOTICE(p_hwfn, false,
"ecore query qp failed: cannot allocate memory (ramrod)\n");
return ECORE_NOMEM;
}
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = qp->icid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
goto err;
p_resp_ramrod = &p_ent->ramrod.roce_query_qp_resp;
DMA_REGPAIR_LE(p_resp_ramrod->output_params_addr, resp_ramrod_res_phys);
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
if (rc != ECORE_SUCCESS)
goto err;
out_params->rq_psn = OSAL_LE32_TO_CPU(p_resp_ramrod_res->psn);
error_flag = GET_FIELD(
OSAL_LE32_TO_CPU(p_resp_ramrod_res->err_flag),
ROCE_QUERY_QP_RESP_OUTPUT_PARAMS_ERROR_FLG);
if (error_flag)
qp->cur_state = ECORE_ROCE_QP_STATE_ERR;
err:
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, p_resp_ramrod_res,
resp_ramrod_res_phys,
sizeof(*p_resp_ramrod_res));
return rc;
}
static OSAL_INLINE enum _ecore_status_t ecore_roce_sp_query_requester(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
struct ecore_rdma_query_qp_out_params *out_params,
bool *sq_draining)
{
struct roce_query_qp_req_output_params *p_req_ramrod_res;
struct roce_query_qp_req_ramrod_data *p_req_ramrod;
struct ecore_sp_init_data init_data;
dma_addr_t req_ramrod_res_phys;
struct ecore_spq_entry *p_ent;
enum _ecore_status_t rc = ECORE_SUCCESS;
bool error_flag;
if (!qp->req_offloaded)
{
/* Don't send query qp for the requester */
out_params->sq_psn = qp->sq_psn;
out_params->draining = false;
*sq_draining = 0;
return ECORE_SUCCESS;
}
/* Send a query requester ramrod to the FW */
p_req_ramrod_res = (struct roce_query_qp_req_output_params *)
OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, &req_ramrod_res_phys,
sizeof(*p_req_ramrod_res));
if (!p_req_ramrod_res)
{
DP_NOTICE(p_hwfn, false,
"ecore query qp failed: cannot allocate memory (ramrod). rc = %d\n",
rc);
return ECORE_NOMEM;
}
/* Get SPQ entry */
init_data.cid = qp->icid + 1;
rc = ecore_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
goto err;
p_req_ramrod = &p_ent->ramrod.roce_query_qp_req;
DMA_REGPAIR_LE(p_req_ramrod->output_params_addr, req_ramrod_res_phys);
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
if (rc != ECORE_SUCCESS)
goto err;
out_params->sq_psn = OSAL_LE32_TO_CPU(p_req_ramrod_res->psn);
error_flag = GET_FIELD(OSAL_LE32_TO_CPU(p_req_ramrod_res->flags),
ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_ERR_FLG);
if (error_flag)
qp->cur_state = ECORE_ROCE_QP_STATE_ERR;
else
*sq_draining = GET_FIELD(
OSAL_LE32_TO_CPU(p_req_ramrod_res->flags),
ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_SQ_DRAINING_FLG);
err:
OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, p_req_ramrod_res,
req_ramrod_res_phys, sizeof(*p_req_ramrod_res));
return rc;
}
enum _ecore_status_t ecore_roce_query_qp(
struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
struct ecore_rdma_query_qp_out_params *out_params)
{
enum _ecore_status_t rc;
rc = ecore_roce_sp_query_responder(p_hwfn, qp, out_params);
if (rc)
return rc;
rc = ecore_roce_sp_query_requester(p_hwfn, qp, out_params,
&out_params->draining);
if (rc)
return rc;
out_params->state = qp->cur_state;
return ECORE_SUCCESS;
}
enum _ecore_status_t ecore_roce_destroy_qp(struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
struct ecore_rdma_destroy_qp_out_params *out_params)
{
u32 cq_prod_resp = qp->cq_prod.resp, cq_prod_req = qp->cq_prod.req;
u32 num_invalidated_mw = 0;
u32 num_bound_mw = 0;
enum _ecore_status_t rc;
/* Destroys the specified QP
* Note: if qp state != RESET/ERR/INIT then upper driver first need to
* call modify qp to move the qp to ERR state
*/
if ((qp->cur_state != ECORE_ROCE_QP_STATE_RESET) &&
(qp->cur_state != ECORE_ROCE_QP_STATE_ERR) &&
(qp->cur_state != ECORE_ROCE_QP_STATE_INIT))
{
DP_NOTICE(p_hwfn,
true,
"QP must be in error, reset or init state before destroying it\n");
return ECORE_INVAL;
}
if (qp->cur_state != ECORE_ROCE_QP_STATE_RESET) {
rc = ecore_roce_sp_destroy_qp_responder(p_hwfn,
qp,
&num_invalidated_mw,
&cq_prod_resp);
if (rc != ECORE_SUCCESS)
return rc;
/* Send destroy requester ramrod */
rc = ecore_roce_sp_destroy_qp_requester(p_hwfn, qp,
&num_bound_mw,
&cq_prod_req);
if (rc != ECORE_SUCCESS)
return rc;
/* resp_ofload was true, num_invalidated_mw is valid */
if (num_invalidated_mw != num_bound_mw) {
DP_NOTICE(p_hwfn,
true,
"number of invalidate memory windows is different from bounded ones\n");
return ECORE_INVAL;
}
}
ecore_roce_free_qp(p_hwfn, qp->qp_idx);
out_params->rq_cq_prod = cq_prod_resp;
out_params->sq_cq_prod = cq_prod_req;
return ECORE_SUCCESS;
}
enum _ecore_status_t ecore_roce_destroy_ud_qp(void *rdma_cxt, u16 cid)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt;
struct ecore_sp_init_data init_data;
struct ecore_spq_entry *p_ent;
enum _ecore_status_t rc;
if (!rdma_cxt) {
DP_ERR(p_hwfn->p_dev,
"destroy ud qp failed due to NULL rdma_cxt\n");
return ECORE_INVAL;
}
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = cid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_DESTROY_UD_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
goto err;
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
if (rc != ECORE_SUCCESS)
goto err;
ecore_roce_free_qp(p_hwfn, ECORE_ROCE_ICID_TO_QP(cid));
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "freed a ud qp with cid=%d\n", cid);
return ECORE_SUCCESS;
err:
DP_ERR(p_hwfn, "failed destroying a ud qp with cid=%d\n", cid);
return rc;
}
enum _ecore_status_t ecore_roce_create_ud_qp(void *rdma_cxt,
struct ecore_rdma_create_qp_out_params *out_params)
{
struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt;
struct ecore_sp_init_data init_data;
struct ecore_spq_entry *p_ent;
enum _ecore_status_t rc;
u16 icid, qp_idx;
if (!rdma_cxt || !out_params) {
DP_ERR(p_hwfn->p_dev,
"ecore roce create ud qp failed due to NULL entry (rdma_cxt=%p, out=%p)\n",
rdma_cxt, out_params);
return ECORE_INVAL;
}
rc = ecore_roce_alloc_qp_idx(p_hwfn, &qp_idx);
if (rc != ECORE_SUCCESS)
goto err;
icid = ECORE_ROCE_QP_TO_ICID(qp_idx);
/* Get SPQ entry */
OSAL_MEMSET(&init_data, 0, sizeof(init_data));
init_data.cid = icid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK;
rc = ecore_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_CREATE_UD_QP,
PROTOCOLID_ROCE, &init_data);
if (rc != ECORE_SUCCESS)
goto err1;
rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL);
if (rc != ECORE_SUCCESS)
goto err1;
out_params->icid = icid;
out_params->qp_id = ((0xFF << 16) | icid);
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "created a ud qp with icid=%d\n",
icid);
return ECORE_SUCCESS;
err1:
ecore_roce_free_qp(p_hwfn, qp_idx);
err:
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "failed creating a ud qp\n");
return rc;
}
enum _ecore_status_t
ecore_roce_modify_qp(struct ecore_hwfn *p_hwfn,
struct ecore_rdma_qp *qp,
enum ecore_roce_qp_state prev_state,
struct ecore_rdma_modify_qp_in_params *params)
{
u32 num_invalidated_mw = 0, num_bound_mw = 0;
enum _ecore_status_t rc = ECORE_SUCCESS;
/* Perform additional operations according to the current state and the
* next state
*/
if (((prev_state == ECORE_ROCE_QP_STATE_INIT) ||
(prev_state == ECORE_ROCE_QP_STATE_RESET)) &&
(qp->cur_state == ECORE_ROCE_QP_STATE_RTR))
{
/* Init->RTR or Reset->RTR */
/* Verify the cid bits that of this qp index are clear */
rc = ecore_roce_wait_free_cids(p_hwfn, qp->qp_idx);
if (rc)
return rc;
rc = ecore_roce_sp_create_responder(p_hwfn, qp);
return rc;
} else if ((prev_state == ECORE_ROCE_QP_STATE_RTR) &&
(qp->cur_state == ECORE_ROCE_QP_STATE_RTS))
{
/* RTR-> RTS */
rc = ecore_roce_sp_create_requester(p_hwfn, qp);
if (rc != ECORE_SUCCESS)
return rc;
/* Send modify responder ramrod */
rc = ecore_roce_sp_modify_responder(p_hwfn, qp, false,
params->modify_flags);
return rc;
} else if ((prev_state == ECORE_ROCE_QP_STATE_RTS) &&
(qp->cur_state == ECORE_ROCE_QP_STATE_RTS))
{
/* RTS->RTS */
rc = ecore_roce_sp_modify_responder(p_hwfn, qp, false,
params->modify_flags);
if (rc != ECORE_SUCCESS)
return rc;
rc = ecore_roce_sp_modify_requester(p_hwfn, qp, false, false,
params->modify_flags);
return rc;
} else if ((prev_state == ECORE_ROCE_QP_STATE_RTS) &&
(qp->cur_state == ECORE_ROCE_QP_STATE_SQD))
{
/* RTS->SQD */
rc = ecore_roce_sp_modify_requester(p_hwfn, qp, true, false,
params->modify_flags);
return rc;
} else if ((prev_state == ECORE_ROCE_QP_STATE_SQD) &&
(qp->cur_state == ECORE_ROCE_QP_STATE_SQD))
{
/* SQD->SQD */
rc = ecore_roce_sp_modify_responder(p_hwfn, qp, false,
params->modify_flags);
if (rc != ECORE_SUCCESS)
return rc;
rc = ecore_roce_sp_modify_requester(p_hwfn, qp, false, false,
params->modify_flags);
return rc;
} else if ((prev_state == ECORE_ROCE_QP_STATE_SQD) &&
(qp->cur_state == ECORE_ROCE_QP_STATE_RTS))
{
/* SQD->RTS */
rc = ecore_roce_sp_modify_responder(p_hwfn, qp, false,
params->modify_flags);
if (rc != ECORE_SUCCESS)
return rc;
rc = ecore_roce_sp_modify_requester(p_hwfn, qp, false, false,
params->modify_flags);
return rc;
} else if (qp->cur_state == ECORE_ROCE_QP_STATE_ERR) {
/* ->ERR */
rc = ecore_roce_sp_modify_responder(p_hwfn, qp, true,
params->modify_flags);
if (rc != ECORE_SUCCESS)
return rc;
rc = ecore_roce_sp_modify_requester(p_hwfn, qp, false, true,
params->modify_flags);
return rc;
} else if (qp->cur_state == ECORE_ROCE_QP_STATE_RESET) {
/* Any state -> RESET */
/* Send destroy responder ramrod */
rc = ecore_roce_sp_destroy_qp_responder(p_hwfn, qp,
&num_invalidated_mw,
&qp->cq_prod.resp);
if (rc != ECORE_SUCCESS)
return rc;
rc = ecore_roce_sp_destroy_qp_requester(p_hwfn, qp,
&num_bound_mw,
&qp->cq_prod.req);
if (rc != ECORE_SUCCESS)
return rc;
if (num_invalidated_mw != num_bound_mw) {
DP_NOTICE(p_hwfn,
true,
"number of invalidate memory windows is different from bounded ones\n");
return ECORE_INVAL;
}
} else {
DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ECORE_SUCCESS\n");
}
return rc;
}
static void ecore_roce_free_icid(struct ecore_hwfn *p_hwfn, u16 icid)
{
struct ecore_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
u32 start_cid, cid;
start_cid = ecore_cxt_get_proto_cid_start(p_hwfn, p_rdma_info->proto);
cid = icid - start_cid;
OSAL_SPIN_LOCK(&p_rdma_info->lock);
ecore_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, cid);
OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock);
}
static void ecore_rdma_dpm_conf(struct ecore_hwfn *p_hwfn,
struct ecore_ptt *p_ptt)
{
u32 val;
val = (p_hwfn->dcbx_no_edpm || p_hwfn->db_bar_no_edpm) ? 0 : 1;
ecore_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPM_ENABLE, val);
DP_VERBOSE(p_hwfn, (ECORE_MSG_DCB | ECORE_MSG_RDMA),
"Changing DPM_EN state to %d (DCBX=%d, DB_BAR=%d)\n",
val, p_hwfn->dcbx_no_edpm, p_hwfn->db_bar_no_edpm);
}
/* This function disables EDPM due to DCBx considerations */
void ecore_roce_dpm_dcbx(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
{
u8 val;
/* if any QPs are already active, we want to disable DPM, since their
* context information contains information from before the latest DCBx
* update. Otherwise enable it.
*/
val = (ecore_rdma_allocated_qps(p_hwfn)) ? true : false;
p_hwfn->dcbx_no_edpm = (u8)val;
ecore_rdma_dpm_conf(p_hwfn, p_ptt);
}
/* This function disables EDPM due to doorbell bar considerations */
void ecore_rdma_dpm_bar(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
{
p_hwfn->db_bar_no_edpm = true;
ecore_rdma_dpm_conf(p_hwfn, p_ptt);
}
enum _ecore_status_t ecore_roce_setup(struct ecore_hwfn *p_hwfn)
{
return ecore_spq_register_async_cb(p_hwfn, PROTOCOLID_ROCE,
ecore_roce_async_event);
}
#ifdef _NTDDK_
#pragma warning(pop)
#endif
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