mirror of https://gitee.com/openkylin/linux.git
2843 lines
77 KiB
C
2843 lines
77 KiB
C
/*
|
|
* Broadcom NetXtreme-E RoCE driver.
|
|
*
|
|
* Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
|
|
* Broadcom refers to Broadcom Limited and/or its subsidiaries.
|
|
*
|
|
* 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
|
|
* BSD license below:
|
|
*
|
|
* 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 AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* Description: Fast Path Operators
|
|
*/
|
|
|
|
#include <linux/interrupt.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/prefetch.h>
|
|
|
|
#include "roce_hsi.h"
|
|
|
|
#include "qplib_res.h"
|
|
#include "qplib_rcfw.h"
|
|
#include "qplib_sp.h"
|
|
#include "qplib_fp.h"
|
|
|
|
static void bnxt_qplib_arm_cq_enable(struct bnxt_qplib_cq *cq);
|
|
static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp);
|
|
static void bnxt_qplib_arm_srq(struct bnxt_qplib_srq *srq, u32 arm_type);
|
|
|
|
static void bnxt_qplib_cancel_phantom_processing(struct bnxt_qplib_qp *qp)
|
|
{
|
|
qp->sq.condition = false;
|
|
qp->sq.send_phantom = false;
|
|
qp->sq.single = false;
|
|
}
|
|
|
|
/* Flush list */
|
|
static void __bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_cq *scq, *rcq;
|
|
|
|
scq = qp->scq;
|
|
rcq = qp->rcq;
|
|
|
|
if (!qp->sq.flushed) {
|
|
dev_dbg(&scq->hwq.pdev->dev,
|
|
"QPLIB: FP: Adding to SQ Flush list = %p",
|
|
qp);
|
|
bnxt_qplib_cancel_phantom_processing(qp);
|
|
list_add_tail(&qp->sq_flush, &scq->sqf_head);
|
|
qp->sq.flushed = true;
|
|
}
|
|
if (!qp->srq) {
|
|
if (!qp->rq.flushed) {
|
|
dev_dbg(&rcq->hwq.pdev->dev,
|
|
"QPLIB: FP: Adding to RQ Flush list = %p",
|
|
qp);
|
|
list_add_tail(&qp->rq_flush, &rcq->rqf_head);
|
|
qp->rq.flushed = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void bnxt_qplib_acquire_cq_flush_locks(struct bnxt_qplib_qp *qp,
|
|
unsigned long *flags)
|
|
__acquires(&qp->scq->flush_lock) __acquires(&qp->rcq->flush_lock)
|
|
{
|
|
spin_lock_irqsave(&qp->scq->flush_lock, *flags);
|
|
if (qp->scq == qp->rcq)
|
|
__acquire(&qp->rcq->flush_lock);
|
|
else
|
|
spin_lock(&qp->rcq->flush_lock);
|
|
}
|
|
|
|
static void bnxt_qplib_release_cq_flush_locks(struct bnxt_qplib_qp *qp,
|
|
unsigned long *flags)
|
|
__releases(&qp->scq->flush_lock) __releases(&qp->rcq->flush_lock)
|
|
{
|
|
if (qp->scq == qp->rcq)
|
|
__release(&qp->rcq->flush_lock);
|
|
else
|
|
spin_unlock(&qp->rcq->flush_lock);
|
|
spin_unlock_irqrestore(&qp->scq->flush_lock, *flags);
|
|
}
|
|
|
|
void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp)
|
|
{
|
|
unsigned long flags;
|
|
|
|
bnxt_qplib_acquire_cq_flush_locks(qp, &flags);
|
|
__bnxt_qplib_add_flush_qp(qp);
|
|
bnxt_qplib_release_cq_flush_locks(qp, &flags);
|
|
}
|
|
|
|
static void __bnxt_qplib_del_flush_qp(struct bnxt_qplib_qp *qp)
|
|
{
|
|
if (qp->sq.flushed) {
|
|
qp->sq.flushed = false;
|
|
list_del(&qp->sq_flush);
|
|
}
|
|
if (!qp->srq) {
|
|
if (qp->rq.flushed) {
|
|
qp->rq.flushed = false;
|
|
list_del(&qp->rq_flush);
|
|
}
|
|
}
|
|
}
|
|
|
|
void bnxt_qplib_clean_qp(struct bnxt_qplib_qp *qp)
|
|
{
|
|
unsigned long flags;
|
|
|
|
bnxt_qplib_acquire_cq_flush_locks(qp, &flags);
|
|
__clean_cq(qp->scq, (u64)(unsigned long)qp);
|
|
qp->sq.hwq.prod = 0;
|
|
qp->sq.hwq.cons = 0;
|
|
__clean_cq(qp->rcq, (u64)(unsigned long)qp);
|
|
qp->rq.hwq.prod = 0;
|
|
qp->rq.hwq.cons = 0;
|
|
|
|
__bnxt_qplib_del_flush_qp(qp);
|
|
bnxt_qplib_release_cq_flush_locks(qp, &flags);
|
|
}
|
|
|
|
static void bnxt_qpn_cqn_sched_task(struct work_struct *work)
|
|
{
|
|
struct bnxt_qplib_nq_work *nq_work =
|
|
container_of(work, struct bnxt_qplib_nq_work, work);
|
|
|
|
struct bnxt_qplib_cq *cq = nq_work->cq;
|
|
struct bnxt_qplib_nq *nq = nq_work->nq;
|
|
|
|
if (cq && nq) {
|
|
spin_lock_bh(&cq->compl_lock);
|
|
if (atomic_read(&cq->arm_state) && nq->cqn_handler) {
|
|
dev_dbg(&nq->pdev->dev,
|
|
"%s:Trigger cq = %p event nq = %p\n",
|
|
__func__, cq, nq);
|
|
nq->cqn_handler(nq, cq);
|
|
}
|
|
spin_unlock_bh(&cq->compl_lock);
|
|
}
|
|
kfree(nq_work);
|
|
}
|
|
|
|
static void bnxt_qplib_free_qp_hdr_buf(struct bnxt_qplib_res *res,
|
|
struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_q *rq = &qp->rq;
|
|
struct bnxt_qplib_q *sq = &qp->sq;
|
|
|
|
if (qp->rq_hdr_buf)
|
|
dma_free_coherent(&res->pdev->dev,
|
|
rq->hwq.max_elements * qp->rq_hdr_buf_size,
|
|
qp->rq_hdr_buf, qp->rq_hdr_buf_map);
|
|
if (qp->sq_hdr_buf)
|
|
dma_free_coherent(&res->pdev->dev,
|
|
sq->hwq.max_elements * qp->sq_hdr_buf_size,
|
|
qp->sq_hdr_buf, qp->sq_hdr_buf_map);
|
|
qp->rq_hdr_buf = NULL;
|
|
qp->sq_hdr_buf = NULL;
|
|
qp->rq_hdr_buf_map = 0;
|
|
qp->sq_hdr_buf_map = 0;
|
|
qp->sq_hdr_buf_size = 0;
|
|
qp->rq_hdr_buf_size = 0;
|
|
}
|
|
|
|
static int bnxt_qplib_alloc_qp_hdr_buf(struct bnxt_qplib_res *res,
|
|
struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_q *rq = &qp->rq;
|
|
struct bnxt_qplib_q *sq = &qp->rq;
|
|
int rc = 0;
|
|
|
|
if (qp->sq_hdr_buf_size && sq->hwq.max_elements) {
|
|
qp->sq_hdr_buf = dma_alloc_coherent(&res->pdev->dev,
|
|
sq->hwq.max_elements *
|
|
qp->sq_hdr_buf_size,
|
|
&qp->sq_hdr_buf_map, GFP_KERNEL);
|
|
if (!qp->sq_hdr_buf) {
|
|
rc = -ENOMEM;
|
|
dev_err(&res->pdev->dev,
|
|
"QPLIB: Failed to create sq_hdr_buf");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (qp->rq_hdr_buf_size && rq->hwq.max_elements) {
|
|
qp->rq_hdr_buf = dma_alloc_coherent(&res->pdev->dev,
|
|
rq->hwq.max_elements *
|
|
qp->rq_hdr_buf_size,
|
|
&qp->rq_hdr_buf_map,
|
|
GFP_KERNEL);
|
|
if (!qp->rq_hdr_buf) {
|
|
rc = -ENOMEM;
|
|
dev_err(&res->pdev->dev,
|
|
"QPLIB: Failed to create rq_hdr_buf");
|
|
goto fail;
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
fail:
|
|
bnxt_qplib_free_qp_hdr_buf(res, qp);
|
|
return rc;
|
|
}
|
|
|
|
static void bnxt_qplib_service_nq(unsigned long data)
|
|
{
|
|
struct bnxt_qplib_nq *nq = (struct bnxt_qplib_nq *)data;
|
|
struct bnxt_qplib_hwq *hwq = &nq->hwq;
|
|
struct nq_base *nqe, **nq_ptr;
|
|
struct bnxt_qplib_cq *cq;
|
|
int num_cqne_processed = 0;
|
|
int num_srqne_processed = 0;
|
|
u32 sw_cons, raw_cons;
|
|
u16 type;
|
|
int budget = nq->budget;
|
|
uintptr_t q_handle;
|
|
|
|
/* Service the NQ until empty */
|
|
raw_cons = hwq->cons;
|
|
while (budget--) {
|
|
sw_cons = HWQ_CMP(raw_cons, hwq);
|
|
nq_ptr = (struct nq_base **)hwq->pbl_ptr;
|
|
nqe = &nq_ptr[NQE_PG(sw_cons)][NQE_IDX(sw_cons)];
|
|
if (!NQE_CMP_VALID(nqe, raw_cons, hwq->max_elements))
|
|
break;
|
|
|
|
/*
|
|
* The valid test of the entry must be done first before
|
|
* reading any further.
|
|
*/
|
|
dma_rmb();
|
|
|
|
type = le16_to_cpu(nqe->info10_type) & NQ_BASE_TYPE_MASK;
|
|
switch (type) {
|
|
case NQ_BASE_TYPE_CQ_NOTIFICATION:
|
|
{
|
|
struct nq_cn *nqcne = (struct nq_cn *)nqe;
|
|
|
|
q_handle = le32_to_cpu(nqcne->cq_handle_low);
|
|
q_handle |= (u64)le32_to_cpu(nqcne->cq_handle_high)
|
|
<< 32;
|
|
cq = (struct bnxt_qplib_cq *)(unsigned long)q_handle;
|
|
bnxt_qplib_arm_cq_enable(cq);
|
|
spin_lock_bh(&cq->compl_lock);
|
|
atomic_set(&cq->arm_state, 0);
|
|
if (!nq->cqn_handler(nq, (cq)))
|
|
num_cqne_processed++;
|
|
else
|
|
dev_warn(&nq->pdev->dev,
|
|
"QPLIB: cqn - type 0x%x not handled",
|
|
type);
|
|
spin_unlock_bh(&cq->compl_lock);
|
|
break;
|
|
}
|
|
case NQ_BASE_TYPE_SRQ_EVENT:
|
|
{
|
|
struct nq_srq_event *nqsrqe =
|
|
(struct nq_srq_event *)nqe;
|
|
|
|
q_handle = le32_to_cpu(nqsrqe->srq_handle_low);
|
|
q_handle |= (u64)le32_to_cpu(nqsrqe->srq_handle_high)
|
|
<< 32;
|
|
bnxt_qplib_arm_srq((struct bnxt_qplib_srq *)q_handle,
|
|
DBR_DBR_TYPE_SRQ_ARMENA);
|
|
if (!nq->srqn_handler(nq,
|
|
(struct bnxt_qplib_srq *)q_handle,
|
|
nqsrqe->event))
|
|
num_srqne_processed++;
|
|
else
|
|
dev_warn(&nq->pdev->dev,
|
|
"QPLIB: SRQ event 0x%x not handled",
|
|
nqsrqe->event);
|
|
break;
|
|
}
|
|
case NQ_BASE_TYPE_DBQ_EVENT:
|
|
break;
|
|
default:
|
|
dev_warn(&nq->pdev->dev,
|
|
"QPLIB: nqe with type = 0x%x not handled",
|
|
type);
|
|
break;
|
|
}
|
|
raw_cons++;
|
|
}
|
|
if (hwq->cons != raw_cons) {
|
|
hwq->cons = raw_cons;
|
|
NQ_DB_REARM(nq->bar_reg_iomem, hwq->cons, hwq->max_elements);
|
|
}
|
|
}
|
|
|
|
static irqreturn_t bnxt_qplib_nq_irq(int irq, void *dev_instance)
|
|
{
|
|
struct bnxt_qplib_nq *nq = dev_instance;
|
|
struct bnxt_qplib_hwq *hwq = &nq->hwq;
|
|
struct nq_base **nq_ptr;
|
|
u32 sw_cons;
|
|
|
|
/* Prefetch the NQ element */
|
|
sw_cons = HWQ_CMP(hwq->cons, hwq);
|
|
nq_ptr = (struct nq_base **)nq->hwq.pbl_ptr;
|
|
prefetch(&nq_ptr[NQE_PG(sw_cons)][NQE_IDX(sw_cons)]);
|
|
|
|
/* Fan out to CPU affinitized kthreads? */
|
|
tasklet_schedule(&nq->worker);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
void bnxt_qplib_nq_stop_irq(struct bnxt_qplib_nq *nq, bool kill)
|
|
{
|
|
tasklet_disable(&nq->worker);
|
|
/* Mask h/w interrupt */
|
|
NQ_DB(nq->bar_reg_iomem, nq->hwq.cons, nq->hwq.max_elements);
|
|
/* Sync with last running IRQ handler */
|
|
synchronize_irq(nq->vector);
|
|
if (kill)
|
|
tasklet_kill(&nq->worker);
|
|
if (nq->requested) {
|
|
irq_set_affinity_hint(nq->vector, NULL);
|
|
free_irq(nq->vector, nq);
|
|
nq->requested = false;
|
|
}
|
|
}
|
|
|
|
void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq)
|
|
{
|
|
if (nq->cqn_wq) {
|
|
destroy_workqueue(nq->cqn_wq);
|
|
nq->cqn_wq = NULL;
|
|
}
|
|
|
|
/* Make sure the HW is stopped! */
|
|
bnxt_qplib_nq_stop_irq(nq, true);
|
|
|
|
if (nq->bar_reg_iomem)
|
|
iounmap(nq->bar_reg_iomem);
|
|
nq->bar_reg_iomem = NULL;
|
|
|
|
nq->cqn_handler = NULL;
|
|
nq->srqn_handler = NULL;
|
|
nq->vector = 0;
|
|
}
|
|
|
|
int bnxt_qplib_nq_start_irq(struct bnxt_qplib_nq *nq, int nq_indx,
|
|
int msix_vector, bool need_init)
|
|
{
|
|
int rc;
|
|
|
|
if (nq->requested)
|
|
return -EFAULT;
|
|
|
|
nq->vector = msix_vector;
|
|
if (need_init)
|
|
tasklet_init(&nq->worker, bnxt_qplib_service_nq,
|
|
(unsigned long)nq);
|
|
else
|
|
tasklet_enable(&nq->worker);
|
|
|
|
snprintf(nq->name, sizeof(nq->name), "bnxt_qplib_nq-%d", nq_indx);
|
|
rc = request_irq(nq->vector, bnxt_qplib_nq_irq, 0, nq->name, nq);
|
|
if (rc)
|
|
return rc;
|
|
|
|
cpumask_clear(&nq->mask);
|
|
cpumask_set_cpu(nq_indx, &nq->mask);
|
|
rc = irq_set_affinity_hint(nq->vector, &nq->mask);
|
|
if (rc) {
|
|
dev_warn(&nq->pdev->dev,
|
|
"QPLIB: set affinity failed; vector: %d nq_idx: %d\n",
|
|
nq->vector, nq_indx);
|
|
}
|
|
nq->requested = true;
|
|
NQ_DB_REARM(nq->bar_reg_iomem, nq->hwq.cons, nq->hwq.max_elements);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq,
|
|
int nq_idx, int msix_vector, int bar_reg_offset,
|
|
int (*cqn_handler)(struct bnxt_qplib_nq *nq,
|
|
struct bnxt_qplib_cq *),
|
|
int (*srqn_handler)(struct bnxt_qplib_nq *nq,
|
|
struct bnxt_qplib_srq *,
|
|
u8 event))
|
|
{
|
|
resource_size_t nq_base;
|
|
int rc = -1;
|
|
|
|
if (cqn_handler)
|
|
nq->cqn_handler = cqn_handler;
|
|
|
|
if (srqn_handler)
|
|
nq->srqn_handler = srqn_handler;
|
|
|
|
/* Have a task to schedule CQ notifiers in post send case */
|
|
nq->cqn_wq = create_singlethread_workqueue("bnxt_qplib_nq");
|
|
if (!nq->cqn_wq)
|
|
return -ENOMEM;
|
|
|
|
nq->bar_reg = NQ_CONS_PCI_BAR_REGION;
|
|
nq->bar_reg_off = bar_reg_offset;
|
|
nq_base = pci_resource_start(pdev, nq->bar_reg);
|
|
if (!nq_base) {
|
|
rc = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
nq->bar_reg_iomem = ioremap_nocache(nq_base + nq->bar_reg_off, 4);
|
|
if (!nq->bar_reg_iomem) {
|
|
rc = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
rc = bnxt_qplib_nq_start_irq(nq, nq_idx, msix_vector, true);
|
|
if (rc) {
|
|
dev_err(&nq->pdev->dev,
|
|
"QPLIB: Failed to request irq for nq-idx %d", nq_idx);
|
|
goto fail;
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
bnxt_qplib_disable_nq(nq);
|
|
return rc;
|
|
}
|
|
|
|
void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq)
|
|
{
|
|
if (nq->hwq.max_elements) {
|
|
bnxt_qplib_free_hwq(nq->pdev, &nq->hwq);
|
|
nq->hwq.max_elements = 0;
|
|
}
|
|
}
|
|
|
|
int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq)
|
|
{
|
|
nq->pdev = pdev;
|
|
if (!nq->hwq.max_elements ||
|
|
nq->hwq.max_elements > BNXT_QPLIB_NQE_MAX_CNT)
|
|
nq->hwq.max_elements = BNXT_QPLIB_NQE_MAX_CNT;
|
|
|
|
if (bnxt_qplib_alloc_init_hwq(nq->pdev, &nq->hwq, NULL, 0,
|
|
&nq->hwq.max_elements,
|
|
BNXT_QPLIB_MAX_NQE_ENTRY_SIZE, 0,
|
|
PAGE_SIZE, HWQ_TYPE_L2_CMPL))
|
|
return -ENOMEM;
|
|
|
|
nq->budget = 8;
|
|
return 0;
|
|
}
|
|
|
|
/* SRQ */
|
|
static void bnxt_qplib_arm_srq(struct bnxt_qplib_srq *srq, u32 arm_type)
|
|
{
|
|
struct bnxt_qplib_hwq *srq_hwq = &srq->hwq;
|
|
struct dbr_dbr db_msg = { 0 };
|
|
void __iomem *db;
|
|
u32 sw_prod = 0;
|
|
|
|
/* Ring DB */
|
|
sw_prod = (arm_type == DBR_DBR_TYPE_SRQ_ARM) ? srq->threshold :
|
|
HWQ_CMP(srq_hwq->prod, srq_hwq);
|
|
db_msg.index = cpu_to_le32((sw_prod << DBR_DBR_INDEX_SFT) &
|
|
DBR_DBR_INDEX_MASK);
|
|
db_msg.type_xid = cpu_to_le32(((srq->id << DBR_DBR_XID_SFT) &
|
|
DBR_DBR_XID_MASK) | arm_type);
|
|
db = (arm_type == DBR_DBR_TYPE_SRQ_ARMENA) ?
|
|
srq->dbr_base : srq->dpi->dbr;
|
|
wmb(); /* barrier before db ring */
|
|
__iowrite64_copy(db, &db_msg, sizeof(db_msg) / sizeof(u64));
|
|
}
|
|
|
|
int bnxt_qplib_destroy_srq(struct bnxt_qplib_res *res,
|
|
struct bnxt_qplib_srq *srq)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_destroy_srq req;
|
|
struct creq_destroy_srq_resp resp;
|
|
u16 cmd_flags = 0;
|
|
int rc;
|
|
|
|
RCFW_CMD_PREP(req, DESTROY_SRQ, cmd_flags);
|
|
|
|
/* Configure the request */
|
|
req.srq_cid = cpu_to_le32(srq->id);
|
|
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
|
|
(void *)&resp, NULL, 0);
|
|
if (rc)
|
|
return rc;
|
|
|
|
bnxt_qplib_free_hwq(res->pdev, &srq->hwq);
|
|
kfree(srq->swq);
|
|
return 0;
|
|
}
|
|
|
|
int bnxt_qplib_create_srq(struct bnxt_qplib_res *res,
|
|
struct bnxt_qplib_srq *srq)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_create_srq req;
|
|
struct creq_create_srq_resp resp;
|
|
struct bnxt_qplib_pbl *pbl;
|
|
u16 cmd_flags = 0;
|
|
int rc, idx;
|
|
|
|
srq->hwq.max_elements = srq->max_wqe;
|
|
rc = bnxt_qplib_alloc_init_hwq(res->pdev, &srq->hwq, srq->sglist,
|
|
srq->nmap, &srq->hwq.max_elements,
|
|
BNXT_QPLIB_MAX_RQE_ENTRY_SIZE, 0,
|
|
PAGE_SIZE, HWQ_TYPE_QUEUE);
|
|
if (rc)
|
|
goto exit;
|
|
|
|
srq->swq = kcalloc(srq->hwq.max_elements, sizeof(*srq->swq),
|
|
GFP_KERNEL);
|
|
if (!srq->swq) {
|
|
rc = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
RCFW_CMD_PREP(req, CREATE_SRQ, cmd_flags);
|
|
|
|
/* Configure the request */
|
|
req.dpi = cpu_to_le32(srq->dpi->dpi);
|
|
req.srq_handle = cpu_to_le64((uintptr_t)srq);
|
|
|
|
req.srq_size = cpu_to_le16((u16)srq->hwq.max_elements);
|
|
pbl = &srq->hwq.pbl[PBL_LVL_0];
|
|
req.pg_size_lvl = cpu_to_le16((((u16)srq->hwq.level &
|
|
CMDQ_CREATE_SRQ_LVL_MASK) <<
|
|
CMDQ_CREATE_SRQ_LVL_SFT) |
|
|
(pbl->pg_size == ROCE_PG_SIZE_4K ?
|
|
CMDQ_CREATE_SRQ_PG_SIZE_PG_4K :
|
|
pbl->pg_size == ROCE_PG_SIZE_8K ?
|
|
CMDQ_CREATE_SRQ_PG_SIZE_PG_8K :
|
|
pbl->pg_size == ROCE_PG_SIZE_64K ?
|
|
CMDQ_CREATE_SRQ_PG_SIZE_PG_64K :
|
|
pbl->pg_size == ROCE_PG_SIZE_2M ?
|
|
CMDQ_CREATE_SRQ_PG_SIZE_PG_2M :
|
|
pbl->pg_size == ROCE_PG_SIZE_8M ?
|
|
CMDQ_CREATE_SRQ_PG_SIZE_PG_8M :
|
|
pbl->pg_size == ROCE_PG_SIZE_1G ?
|
|
CMDQ_CREATE_SRQ_PG_SIZE_PG_1G :
|
|
CMDQ_CREATE_SRQ_PG_SIZE_PG_4K));
|
|
req.pbl = cpu_to_le64(pbl->pg_map_arr[0]);
|
|
req.pd_id = cpu_to_le32(srq->pd->id);
|
|
req.eventq_id = cpu_to_le16(srq->eventq_hw_ring_id);
|
|
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
|
|
(void *)&resp, NULL, 0);
|
|
if (rc)
|
|
goto fail;
|
|
|
|
spin_lock_init(&srq->lock);
|
|
srq->start_idx = 0;
|
|
srq->last_idx = srq->hwq.max_elements - 1;
|
|
for (idx = 0; idx < srq->hwq.max_elements; idx++)
|
|
srq->swq[idx].next_idx = idx + 1;
|
|
srq->swq[srq->last_idx].next_idx = -1;
|
|
|
|
srq->id = le32_to_cpu(resp.xid);
|
|
srq->dbr_base = res->dpi_tbl.dbr_bar_reg_iomem;
|
|
if (srq->threshold)
|
|
bnxt_qplib_arm_srq(srq, DBR_DBR_TYPE_SRQ_ARMENA);
|
|
srq->arm_req = false;
|
|
|
|
return 0;
|
|
fail:
|
|
bnxt_qplib_free_hwq(res->pdev, &srq->hwq);
|
|
kfree(srq->swq);
|
|
exit:
|
|
return rc;
|
|
}
|
|
|
|
int bnxt_qplib_modify_srq(struct bnxt_qplib_res *res,
|
|
struct bnxt_qplib_srq *srq)
|
|
{
|
|
struct bnxt_qplib_hwq *srq_hwq = &srq->hwq;
|
|
u32 sw_prod, sw_cons, count = 0;
|
|
|
|
sw_prod = HWQ_CMP(srq_hwq->prod, srq_hwq);
|
|
sw_cons = HWQ_CMP(srq_hwq->cons, srq_hwq);
|
|
|
|
count = sw_prod > sw_cons ? sw_prod - sw_cons :
|
|
srq_hwq->max_elements - sw_cons + sw_prod;
|
|
if (count > srq->threshold) {
|
|
srq->arm_req = false;
|
|
bnxt_qplib_arm_srq(srq, DBR_DBR_TYPE_SRQ_ARM);
|
|
} else {
|
|
/* Deferred arming */
|
|
srq->arm_req = true;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int bnxt_qplib_query_srq(struct bnxt_qplib_res *res,
|
|
struct bnxt_qplib_srq *srq)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_query_srq req;
|
|
struct creq_query_srq_resp resp;
|
|
struct bnxt_qplib_rcfw_sbuf *sbuf;
|
|
struct creq_query_srq_resp_sb *sb;
|
|
u16 cmd_flags = 0;
|
|
int rc = 0;
|
|
|
|
RCFW_CMD_PREP(req, QUERY_SRQ, cmd_flags);
|
|
req.srq_cid = cpu_to_le32(srq->id);
|
|
|
|
/* Configure the request */
|
|
sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
|
|
if (!sbuf)
|
|
return -ENOMEM;
|
|
sb = sbuf->sb;
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
|
|
(void *)sbuf, 0);
|
|
srq->threshold = le16_to_cpu(sb->srq_limit);
|
|
bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int bnxt_qplib_post_srq_recv(struct bnxt_qplib_srq *srq,
|
|
struct bnxt_qplib_swqe *wqe)
|
|
{
|
|
struct bnxt_qplib_hwq *srq_hwq = &srq->hwq;
|
|
struct rq_wqe *srqe, **srqe_ptr;
|
|
struct sq_sge *hw_sge;
|
|
u32 sw_prod, sw_cons, count = 0;
|
|
int i, rc = 0, next;
|
|
|
|
spin_lock(&srq_hwq->lock);
|
|
if (srq->start_idx == srq->last_idx) {
|
|
dev_err(&srq_hwq->pdev->dev, "QPLIB: FP: SRQ (0x%x) is full!",
|
|
srq->id);
|
|
rc = -EINVAL;
|
|
spin_unlock(&srq_hwq->lock);
|
|
goto done;
|
|
}
|
|
next = srq->start_idx;
|
|
srq->start_idx = srq->swq[next].next_idx;
|
|
spin_unlock(&srq_hwq->lock);
|
|
|
|
sw_prod = HWQ_CMP(srq_hwq->prod, srq_hwq);
|
|
srqe_ptr = (struct rq_wqe **)srq_hwq->pbl_ptr;
|
|
srqe = &srqe_ptr[RQE_PG(sw_prod)][RQE_IDX(sw_prod)];
|
|
memset(srqe, 0, BNXT_QPLIB_MAX_RQE_ENTRY_SIZE);
|
|
/* Calculate wqe_size16 and data_len */
|
|
for (i = 0, hw_sge = (struct sq_sge *)srqe->data;
|
|
i < wqe->num_sge; i++, hw_sge++) {
|
|
hw_sge->va_or_pa = cpu_to_le64(wqe->sg_list[i].addr);
|
|
hw_sge->l_key = cpu_to_le32(wqe->sg_list[i].lkey);
|
|
hw_sge->size = cpu_to_le32(wqe->sg_list[i].size);
|
|
}
|
|
srqe->wqe_type = wqe->type;
|
|
srqe->flags = wqe->flags;
|
|
srqe->wqe_size = wqe->num_sge +
|
|
((offsetof(typeof(*srqe), data) + 15) >> 4);
|
|
srqe->wr_id[0] = cpu_to_le32((u32)next);
|
|
srq->swq[next].wr_id = wqe->wr_id;
|
|
|
|
srq_hwq->prod++;
|
|
|
|
spin_lock(&srq_hwq->lock);
|
|
sw_prod = HWQ_CMP(srq_hwq->prod, srq_hwq);
|
|
/* retaining srq_hwq->cons for this logic
|
|
* actually the lock is only required to
|
|
* read srq_hwq->cons.
|
|
*/
|
|
sw_cons = HWQ_CMP(srq_hwq->cons, srq_hwq);
|
|
count = sw_prod > sw_cons ? sw_prod - sw_cons :
|
|
srq_hwq->max_elements - sw_cons + sw_prod;
|
|
spin_unlock(&srq_hwq->lock);
|
|
/* Ring DB */
|
|
bnxt_qplib_arm_srq(srq, DBR_DBR_TYPE_SRQ);
|
|
if (srq->arm_req == true && count > srq->threshold) {
|
|
srq->arm_req = false;
|
|
bnxt_qplib_arm_srq(srq, DBR_DBR_TYPE_SRQ_ARM);
|
|
}
|
|
done:
|
|
return rc;
|
|
}
|
|
|
|
/* QP */
|
|
int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_create_qp1 req;
|
|
struct creq_create_qp1_resp resp;
|
|
struct bnxt_qplib_pbl *pbl;
|
|
struct bnxt_qplib_q *sq = &qp->sq;
|
|
struct bnxt_qplib_q *rq = &qp->rq;
|
|
int rc;
|
|
u16 cmd_flags = 0;
|
|
u32 qp_flags = 0;
|
|
|
|
RCFW_CMD_PREP(req, CREATE_QP1, cmd_flags);
|
|
|
|
/* General */
|
|
req.type = qp->type;
|
|
req.dpi = cpu_to_le32(qp->dpi->dpi);
|
|
req.qp_handle = cpu_to_le64(qp->qp_handle);
|
|
|
|
/* SQ */
|
|
sq->hwq.max_elements = sq->max_wqe;
|
|
rc = bnxt_qplib_alloc_init_hwq(res->pdev, &sq->hwq, NULL, 0,
|
|
&sq->hwq.max_elements,
|
|
BNXT_QPLIB_MAX_SQE_ENTRY_SIZE, 0,
|
|
PAGE_SIZE, HWQ_TYPE_QUEUE);
|
|
if (rc)
|
|
goto exit;
|
|
|
|
sq->swq = kcalloc(sq->hwq.max_elements, sizeof(*sq->swq), GFP_KERNEL);
|
|
if (!sq->swq) {
|
|
rc = -ENOMEM;
|
|
goto fail_sq;
|
|
}
|
|
pbl = &sq->hwq.pbl[PBL_LVL_0];
|
|
req.sq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
|
|
req.sq_pg_size_sq_lvl =
|
|
((sq->hwq.level & CMDQ_CREATE_QP1_SQ_LVL_MASK)
|
|
<< CMDQ_CREATE_QP1_SQ_LVL_SFT) |
|
|
(pbl->pg_size == ROCE_PG_SIZE_4K ?
|
|
CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_4K :
|
|
pbl->pg_size == ROCE_PG_SIZE_8K ?
|
|
CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_8K :
|
|
pbl->pg_size == ROCE_PG_SIZE_64K ?
|
|
CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_64K :
|
|
pbl->pg_size == ROCE_PG_SIZE_2M ?
|
|
CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_2M :
|
|
pbl->pg_size == ROCE_PG_SIZE_8M ?
|
|
CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_8M :
|
|
pbl->pg_size == ROCE_PG_SIZE_1G ?
|
|
CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_1G :
|
|
CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_4K);
|
|
|
|
if (qp->scq)
|
|
req.scq_cid = cpu_to_le32(qp->scq->id);
|
|
|
|
qp_flags |= CMDQ_CREATE_QP1_QP_FLAGS_RESERVED_LKEY_ENABLE;
|
|
|
|
/* RQ */
|
|
if (rq->max_wqe) {
|
|
rq->hwq.max_elements = qp->rq.max_wqe;
|
|
rc = bnxt_qplib_alloc_init_hwq(res->pdev, &rq->hwq, NULL, 0,
|
|
&rq->hwq.max_elements,
|
|
BNXT_QPLIB_MAX_RQE_ENTRY_SIZE, 0,
|
|
PAGE_SIZE, HWQ_TYPE_QUEUE);
|
|
if (rc)
|
|
goto fail_sq;
|
|
|
|
rq->swq = kcalloc(rq->hwq.max_elements, sizeof(*rq->swq),
|
|
GFP_KERNEL);
|
|
if (!rq->swq) {
|
|
rc = -ENOMEM;
|
|
goto fail_rq;
|
|
}
|
|
pbl = &rq->hwq.pbl[PBL_LVL_0];
|
|
req.rq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
|
|
req.rq_pg_size_rq_lvl =
|
|
((rq->hwq.level & CMDQ_CREATE_QP1_RQ_LVL_MASK) <<
|
|
CMDQ_CREATE_QP1_RQ_LVL_SFT) |
|
|
(pbl->pg_size == ROCE_PG_SIZE_4K ?
|
|
CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_4K :
|
|
pbl->pg_size == ROCE_PG_SIZE_8K ?
|
|
CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_8K :
|
|
pbl->pg_size == ROCE_PG_SIZE_64K ?
|
|
CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_64K :
|
|
pbl->pg_size == ROCE_PG_SIZE_2M ?
|
|
CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_2M :
|
|
pbl->pg_size == ROCE_PG_SIZE_8M ?
|
|
CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_8M :
|
|
pbl->pg_size == ROCE_PG_SIZE_1G ?
|
|
CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_1G :
|
|
CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_4K);
|
|
if (qp->rcq)
|
|
req.rcq_cid = cpu_to_le32(qp->rcq->id);
|
|
}
|
|
|
|
/* Header buffer - allow hdr_buf pass in */
|
|
rc = bnxt_qplib_alloc_qp_hdr_buf(res, qp);
|
|
if (rc) {
|
|
rc = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
req.qp_flags = cpu_to_le32(qp_flags);
|
|
req.sq_size = cpu_to_le32(sq->hwq.max_elements);
|
|
req.rq_size = cpu_to_le32(rq->hwq.max_elements);
|
|
|
|
req.sq_fwo_sq_sge =
|
|
cpu_to_le16((sq->max_sge & CMDQ_CREATE_QP1_SQ_SGE_MASK) <<
|
|
CMDQ_CREATE_QP1_SQ_SGE_SFT);
|
|
req.rq_fwo_rq_sge =
|
|
cpu_to_le16((rq->max_sge & CMDQ_CREATE_QP1_RQ_SGE_MASK) <<
|
|
CMDQ_CREATE_QP1_RQ_SGE_SFT);
|
|
|
|
req.pd_id = cpu_to_le32(qp->pd->id);
|
|
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
|
|
(void *)&resp, NULL, 0);
|
|
if (rc)
|
|
goto fail;
|
|
|
|
qp->id = le32_to_cpu(resp.xid);
|
|
qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
|
|
rcfw->qp_tbl[qp->id].qp_id = qp->id;
|
|
rcfw->qp_tbl[qp->id].qp_handle = (void *)qp;
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
bnxt_qplib_free_qp_hdr_buf(res, qp);
|
|
fail_rq:
|
|
bnxt_qplib_free_hwq(res->pdev, &rq->hwq);
|
|
kfree(rq->swq);
|
|
fail_sq:
|
|
bnxt_qplib_free_hwq(res->pdev, &sq->hwq);
|
|
kfree(sq->swq);
|
|
exit:
|
|
return rc;
|
|
}
|
|
|
|
int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct sq_send *hw_sq_send_hdr, **hw_sq_send_ptr;
|
|
struct cmdq_create_qp req;
|
|
struct creq_create_qp_resp resp;
|
|
struct bnxt_qplib_pbl *pbl;
|
|
struct sq_psn_search **psn_search_ptr;
|
|
unsigned long int psn_search, poff = 0;
|
|
struct bnxt_qplib_q *sq = &qp->sq;
|
|
struct bnxt_qplib_q *rq = &qp->rq;
|
|
struct bnxt_qplib_hwq *xrrq;
|
|
int i, rc, req_size, psn_sz;
|
|
u16 cmd_flags = 0, max_ssge;
|
|
u32 sw_prod, qp_flags = 0;
|
|
|
|
RCFW_CMD_PREP(req, CREATE_QP, cmd_flags);
|
|
|
|
/* General */
|
|
req.type = qp->type;
|
|
req.dpi = cpu_to_le32(qp->dpi->dpi);
|
|
req.qp_handle = cpu_to_le64(qp->qp_handle);
|
|
|
|
/* SQ */
|
|
psn_sz = (qp->type == CMDQ_CREATE_QP_TYPE_RC) ?
|
|
sizeof(struct sq_psn_search) : 0;
|
|
sq->hwq.max_elements = sq->max_wqe;
|
|
rc = bnxt_qplib_alloc_init_hwq(res->pdev, &sq->hwq, sq->sglist,
|
|
sq->nmap, &sq->hwq.max_elements,
|
|
BNXT_QPLIB_MAX_SQE_ENTRY_SIZE,
|
|
psn_sz,
|
|
PAGE_SIZE, HWQ_TYPE_QUEUE);
|
|
if (rc)
|
|
goto exit;
|
|
|
|
sq->swq = kcalloc(sq->hwq.max_elements, sizeof(*sq->swq), GFP_KERNEL);
|
|
if (!sq->swq) {
|
|
rc = -ENOMEM;
|
|
goto fail_sq;
|
|
}
|
|
hw_sq_send_ptr = (struct sq_send **)sq->hwq.pbl_ptr;
|
|
if (psn_sz) {
|
|
psn_search_ptr = (struct sq_psn_search **)
|
|
&hw_sq_send_ptr[get_sqe_pg
|
|
(sq->hwq.max_elements)];
|
|
psn_search = (unsigned long int)
|
|
&hw_sq_send_ptr[get_sqe_pg(sq->hwq.max_elements)]
|
|
[get_sqe_idx(sq->hwq.max_elements)];
|
|
if (psn_search & ~PAGE_MASK) {
|
|
/* If the psn_search does not start on a page boundary,
|
|
* then calculate the offset
|
|
*/
|
|
poff = (psn_search & ~PAGE_MASK) /
|
|
BNXT_QPLIB_MAX_PSNE_ENTRY_SIZE;
|
|
}
|
|
for (i = 0; i < sq->hwq.max_elements; i++)
|
|
sq->swq[i].psn_search =
|
|
&psn_search_ptr[get_psne_pg(i + poff)]
|
|
[get_psne_idx(i + poff)];
|
|
}
|
|
pbl = &sq->hwq.pbl[PBL_LVL_0];
|
|
req.sq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
|
|
req.sq_pg_size_sq_lvl =
|
|
((sq->hwq.level & CMDQ_CREATE_QP_SQ_LVL_MASK)
|
|
<< CMDQ_CREATE_QP_SQ_LVL_SFT) |
|
|
(pbl->pg_size == ROCE_PG_SIZE_4K ?
|
|
CMDQ_CREATE_QP_SQ_PG_SIZE_PG_4K :
|
|
pbl->pg_size == ROCE_PG_SIZE_8K ?
|
|
CMDQ_CREATE_QP_SQ_PG_SIZE_PG_8K :
|
|
pbl->pg_size == ROCE_PG_SIZE_64K ?
|
|
CMDQ_CREATE_QP_SQ_PG_SIZE_PG_64K :
|
|
pbl->pg_size == ROCE_PG_SIZE_2M ?
|
|
CMDQ_CREATE_QP_SQ_PG_SIZE_PG_2M :
|
|
pbl->pg_size == ROCE_PG_SIZE_8M ?
|
|
CMDQ_CREATE_QP_SQ_PG_SIZE_PG_8M :
|
|
pbl->pg_size == ROCE_PG_SIZE_1G ?
|
|
CMDQ_CREATE_QP_SQ_PG_SIZE_PG_1G :
|
|
CMDQ_CREATE_QP_SQ_PG_SIZE_PG_4K);
|
|
|
|
/* initialize all SQ WQEs to LOCAL_INVALID (sq prep for hw fetch) */
|
|
hw_sq_send_ptr = (struct sq_send **)sq->hwq.pbl_ptr;
|
|
for (sw_prod = 0; sw_prod < sq->hwq.max_elements; sw_prod++) {
|
|
hw_sq_send_hdr = &hw_sq_send_ptr[get_sqe_pg(sw_prod)]
|
|
[get_sqe_idx(sw_prod)];
|
|
hw_sq_send_hdr->wqe_type = SQ_BASE_WQE_TYPE_LOCAL_INVALID;
|
|
}
|
|
|
|
if (qp->scq)
|
|
req.scq_cid = cpu_to_le32(qp->scq->id);
|
|
|
|
qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_RESERVED_LKEY_ENABLE;
|
|
qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_FR_PMR_ENABLED;
|
|
if (qp->sig_type)
|
|
qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_FORCE_COMPLETION;
|
|
|
|
/* RQ */
|
|
if (rq->max_wqe) {
|
|
rq->hwq.max_elements = rq->max_wqe;
|
|
rc = bnxt_qplib_alloc_init_hwq(res->pdev, &rq->hwq, rq->sglist,
|
|
rq->nmap, &rq->hwq.max_elements,
|
|
BNXT_QPLIB_MAX_RQE_ENTRY_SIZE, 0,
|
|
PAGE_SIZE, HWQ_TYPE_QUEUE);
|
|
if (rc)
|
|
goto fail_sq;
|
|
|
|
rq->swq = kcalloc(rq->hwq.max_elements, sizeof(*rq->swq),
|
|
GFP_KERNEL);
|
|
if (!rq->swq) {
|
|
rc = -ENOMEM;
|
|
goto fail_rq;
|
|
}
|
|
pbl = &rq->hwq.pbl[PBL_LVL_0];
|
|
req.rq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
|
|
req.rq_pg_size_rq_lvl =
|
|
((rq->hwq.level & CMDQ_CREATE_QP_RQ_LVL_MASK) <<
|
|
CMDQ_CREATE_QP_RQ_LVL_SFT) |
|
|
(pbl->pg_size == ROCE_PG_SIZE_4K ?
|
|
CMDQ_CREATE_QP_RQ_PG_SIZE_PG_4K :
|
|
pbl->pg_size == ROCE_PG_SIZE_8K ?
|
|
CMDQ_CREATE_QP_RQ_PG_SIZE_PG_8K :
|
|
pbl->pg_size == ROCE_PG_SIZE_64K ?
|
|
CMDQ_CREATE_QP_RQ_PG_SIZE_PG_64K :
|
|
pbl->pg_size == ROCE_PG_SIZE_2M ?
|
|
CMDQ_CREATE_QP_RQ_PG_SIZE_PG_2M :
|
|
pbl->pg_size == ROCE_PG_SIZE_8M ?
|
|
CMDQ_CREATE_QP_RQ_PG_SIZE_PG_8M :
|
|
pbl->pg_size == ROCE_PG_SIZE_1G ?
|
|
CMDQ_CREATE_QP_RQ_PG_SIZE_PG_1G :
|
|
CMDQ_CREATE_QP_RQ_PG_SIZE_PG_4K);
|
|
} else {
|
|
/* SRQ */
|
|
if (qp->srq) {
|
|
qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_SRQ_USED;
|
|
req.srq_cid = cpu_to_le32(qp->srq->id);
|
|
}
|
|
}
|
|
|
|
if (qp->rcq)
|
|
req.rcq_cid = cpu_to_le32(qp->rcq->id);
|
|
req.qp_flags = cpu_to_le32(qp_flags);
|
|
req.sq_size = cpu_to_le32(sq->hwq.max_elements);
|
|
req.rq_size = cpu_to_le32(rq->hwq.max_elements);
|
|
qp->sq_hdr_buf = NULL;
|
|
qp->rq_hdr_buf = NULL;
|
|
|
|
rc = bnxt_qplib_alloc_qp_hdr_buf(res, qp);
|
|
if (rc)
|
|
goto fail_rq;
|
|
|
|
/* CTRL-22434: Irrespective of the requested SGE count on the SQ
|
|
* always create the QP with max send sges possible if the requested
|
|
* inline size is greater than 0.
|
|
*/
|
|
max_ssge = qp->max_inline_data ? 6 : sq->max_sge;
|
|
req.sq_fwo_sq_sge = cpu_to_le16(
|
|
((max_ssge & CMDQ_CREATE_QP_SQ_SGE_MASK)
|
|
<< CMDQ_CREATE_QP_SQ_SGE_SFT) | 0);
|
|
req.rq_fwo_rq_sge = cpu_to_le16(
|
|
((rq->max_sge & CMDQ_CREATE_QP_RQ_SGE_MASK)
|
|
<< CMDQ_CREATE_QP_RQ_SGE_SFT) | 0);
|
|
/* ORRQ and IRRQ */
|
|
if (psn_sz) {
|
|
xrrq = &qp->orrq;
|
|
xrrq->max_elements =
|
|
ORD_LIMIT_TO_ORRQ_SLOTS(qp->max_rd_atomic);
|
|
req_size = xrrq->max_elements *
|
|
BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE + PAGE_SIZE - 1;
|
|
req_size &= ~(PAGE_SIZE - 1);
|
|
rc = bnxt_qplib_alloc_init_hwq(res->pdev, xrrq, NULL, 0,
|
|
&xrrq->max_elements,
|
|
BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE,
|
|
0, req_size, HWQ_TYPE_CTX);
|
|
if (rc)
|
|
goto fail_buf_free;
|
|
pbl = &xrrq->pbl[PBL_LVL_0];
|
|
req.orrq_addr = cpu_to_le64(pbl->pg_map_arr[0]);
|
|
|
|
xrrq = &qp->irrq;
|
|
xrrq->max_elements = IRD_LIMIT_TO_IRRQ_SLOTS(
|
|
qp->max_dest_rd_atomic);
|
|
req_size = xrrq->max_elements *
|
|
BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE + PAGE_SIZE - 1;
|
|
req_size &= ~(PAGE_SIZE - 1);
|
|
|
|
rc = bnxt_qplib_alloc_init_hwq(res->pdev, xrrq, NULL, 0,
|
|
&xrrq->max_elements,
|
|
BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE,
|
|
0, req_size, HWQ_TYPE_CTX);
|
|
if (rc)
|
|
goto fail_orrq;
|
|
|
|
pbl = &xrrq->pbl[PBL_LVL_0];
|
|
req.irrq_addr = cpu_to_le64(pbl->pg_map_arr[0]);
|
|
}
|
|
req.pd_id = cpu_to_le32(qp->pd->id);
|
|
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
|
|
(void *)&resp, NULL, 0);
|
|
if (rc)
|
|
goto fail;
|
|
|
|
qp->id = le32_to_cpu(resp.xid);
|
|
qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
|
|
INIT_LIST_HEAD(&qp->sq_flush);
|
|
INIT_LIST_HEAD(&qp->rq_flush);
|
|
rcfw->qp_tbl[qp->id].qp_id = qp->id;
|
|
rcfw->qp_tbl[qp->id].qp_handle = (void *)qp;
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
if (qp->irrq.max_elements)
|
|
bnxt_qplib_free_hwq(res->pdev, &qp->irrq);
|
|
fail_orrq:
|
|
if (qp->orrq.max_elements)
|
|
bnxt_qplib_free_hwq(res->pdev, &qp->orrq);
|
|
fail_buf_free:
|
|
bnxt_qplib_free_qp_hdr_buf(res, qp);
|
|
fail_rq:
|
|
bnxt_qplib_free_hwq(res->pdev, &rq->hwq);
|
|
kfree(rq->swq);
|
|
fail_sq:
|
|
bnxt_qplib_free_hwq(res->pdev, &sq->hwq);
|
|
kfree(sq->swq);
|
|
exit:
|
|
return rc;
|
|
}
|
|
|
|
static void __modify_flags_from_init_state(struct bnxt_qplib_qp *qp)
|
|
{
|
|
switch (qp->state) {
|
|
case CMDQ_MODIFY_QP_NEW_STATE_RTR:
|
|
/* INIT->RTR, configure the path_mtu to the default
|
|
* 2048 if not being requested
|
|
*/
|
|
if (!(qp->modify_flags &
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU)) {
|
|
qp->modify_flags |=
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU;
|
|
qp->path_mtu =
|
|
CMDQ_MODIFY_QP_PATH_MTU_MTU_2048;
|
|
}
|
|
qp->modify_flags &=
|
|
~CMDQ_MODIFY_QP_MODIFY_MASK_VLAN_ID;
|
|
/* Bono FW require the max_dest_rd_atomic to be >= 1 */
|
|
if (qp->max_dest_rd_atomic < 1)
|
|
qp->max_dest_rd_atomic = 1;
|
|
qp->modify_flags &= ~CMDQ_MODIFY_QP_MODIFY_MASK_SRC_MAC;
|
|
/* Bono FW 20.6.5 requires SGID_INDEX configuration */
|
|
if (!(qp->modify_flags &
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX)) {
|
|
qp->modify_flags |=
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX;
|
|
qp->ah.sgid_index = 0;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void __modify_flags_from_rtr_state(struct bnxt_qplib_qp *qp)
|
|
{
|
|
switch (qp->state) {
|
|
case CMDQ_MODIFY_QP_NEW_STATE_RTS:
|
|
/* Bono FW requires the max_rd_atomic to be >= 1 */
|
|
if (qp->max_rd_atomic < 1)
|
|
qp->max_rd_atomic = 1;
|
|
/* Bono FW does not allow PKEY_INDEX,
|
|
* DGID, FLOW_LABEL, SGID_INDEX, HOP_LIMIT,
|
|
* TRAFFIC_CLASS, DEST_MAC, PATH_MTU, RQ_PSN,
|
|
* MIN_RNR_TIMER, MAX_DEST_RD_ATOMIC, DEST_QP_ID
|
|
* modification
|
|
*/
|
|
qp->modify_flags &=
|
|
~(CMDQ_MODIFY_QP_MODIFY_MASK_PKEY |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_DGID |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC |
|
|
CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void __filter_modify_flags(struct bnxt_qplib_qp *qp)
|
|
{
|
|
switch (qp->cur_qp_state) {
|
|
case CMDQ_MODIFY_QP_NEW_STATE_RESET:
|
|
break;
|
|
case CMDQ_MODIFY_QP_NEW_STATE_INIT:
|
|
__modify_flags_from_init_state(qp);
|
|
break;
|
|
case CMDQ_MODIFY_QP_NEW_STATE_RTR:
|
|
__modify_flags_from_rtr_state(qp);
|
|
break;
|
|
case CMDQ_MODIFY_QP_NEW_STATE_RTS:
|
|
break;
|
|
case CMDQ_MODIFY_QP_NEW_STATE_SQD:
|
|
break;
|
|
case CMDQ_MODIFY_QP_NEW_STATE_SQE:
|
|
break;
|
|
case CMDQ_MODIFY_QP_NEW_STATE_ERR:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_modify_qp req;
|
|
struct creq_modify_qp_resp resp;
|
|
u16 cmd_flags = 0, pkey;
|
|
u32 temp32[4];
|
|
u32 bmask;
|
|
int rc;
|
|
|
|
RCFW_CMD_PREP(req, MODIFY_QP, cmd_flags);
|
|
|
|
/* Filter out the qp_attr_mask based on the state->new transition */
|
|
__filter_modify_flags(qp);
|
|
bmask = qp->modify_flags;
|
|
req.modify_mask = cpu_to_le32(qp->modify_flags);
|
|
req.qp_cid = cpu_to_le32(qp->id);
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_STATE) {
|
|
req.network_type_en_sqd_async_notify_new_state =
|
|
(qp->state & CMDQ_MODIFY_QP_NEW_STATE_MASK) |
|
|
(qp->en_sqd_async_notify ?
|
|
CMDQ_MODIFY_QP_EN_SQD_ASYNC_NOTIFY : 0);
|
|
}
|
|
req.network_type_en_sqd_async_notify_new_state |= qp->nw_type;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_ACCESS)
|
|
req.access = qp->access;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_PKEY) {
|
|
if (!bnxt_qplib_get_pkey(res, &res->pkey_tbl,
|
|
qp->pkey_index, &pkey))
|
|
req.pkey = cpu_to_le16(pkey);
|
|
}
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_QKEY)
|
|
req.qkey = cpu_to_le32(qp->qkey);
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DGID) {
|
|
memcpy(temp32, qp->ah.dgid.data, sizeof(struct bnxt_qplib_gid));
|
|
req.dgid[0] = cpu_to_le32(temp32[0]);
|
|
req.dgid[1] = cpu_to_le32(temp32[1]);
|
|
req.dgid[2] = cpu_to_le32(temp32[2]);
|
|
req.dgid[3] = cpu_to_le32(temp32[3]);
|
|
}
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL)
|
|
req.flow_label = cpu_to_le32(qp->ah.flow_label);
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX)
|
|
req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id
|
|
[qp->ah.sgid_index]);
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT)
|
|
req.hop_limit = qp->ah.hop_limit;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS)
|
|
req.traffic_class = qp->ah.traffic_class;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC)
|
|
memcpy(req.dest_mac, qp->ah.dmac, 6);
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU)
|
|
req.path_mtu = qp->path_mtu;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TIMEOUT)
|
|
req.timeout = qp->timeout;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RETRY_CNT)
|
|
req.retry_cnt = qp->retry_cnt;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RNR_RETRY)
|
|
req.rnr_retry = qp->rnr_retry;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER)
|
|
req.min_rnr_timer = qp->min_rnr_timer;
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN)
|
|
req.rq_psn = cpu_to_le32(qp->rq.psn);
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_SQ_PSN)
|
|
req.sq_psn = cpu_to_le32(qp->sq.psn);
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MAX_RD_ATOMIC)
|
|
req.max_rd_atomic =
|
|
ORD_LIMIT_TO_ORRQ_SLOTS(qp->max_rd_atomic);
|
|
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC)
|
|
req.max_dest_rd_atomic =
|
|
IRD_LIMIT_TO_IRRQ_SLOTS(qp->max_dest_rd_atomic);
|
|
|
|
req.sq_size = cpu_to_le32(qp->sq.hwq.max_elements);
|
|
req.rq_size = cpu_to_le32(qp->rq.hwq.max_elements);
|
|
req.sq_sge = cpu_to_le16(qp->sq.max_sge);
|
|
req.rq_sge = cpu_to_le16(qp->rq.max_sge);
|
|
req.max_inline_data = cpu_to_le32(qp->max_inline_data);
|
|
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID)
|
|
req.dest_qp_id = cpu_to_le32(qp->dest_qpn);
|
|
|
|
req.vlan_pcp_vlan_dei_vlan_id = cpu_to_le16(qp->vlan_id);
|
|
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
|
|
(void *)&resp, NULL, 0);
|
|
if (rc)
|
|
return rc;
|
|
qp->cur_qp_state = qp->state;
|
|
return 0;
|
|
}
|
|
|
|
int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_query_qp req;
|
|
struct creq_query_qp_resp resp;
|
|
struct bnxt_qplib_rcfw_sbuf *sbuf;
|
|
struct creq_query_qp_resp_sb *sb;
|
|
u16 cmd_flags = 0;
|
|
u32 temp32[4];
|
|
int i, rc = 0;
|
|
|
|
RCFW_CMD_PREP(req, QUERY_QP, cmd_flags);
|
|
|
|
sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
|
|
if (!sbuf)
|
|
return -ENOMEM;
|
|
sb = sbuf->sb;
|
|
|
|
req.qp_cid = cpu_to_le32(qp->id);
|
|
req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
|
|
(void *)sbuf, 0);
|
|
if (rc)
|
|
goto bail;
|
|
/* Extract the context from the side buffer */
|
|
qp->state = sb->en_sqd_async_notify_state &
|
|
CREQ_QUERY_QP_RESP_SB_STATE_MASK;
|
|
qp->en_sqd_async_notify = sb->en_sqd_async_notify_state &
|
|
CREQ_QUERY_QP_RESP_SB_EN_SQD_ASYNC_NOTIFY ?
|
|
true : false;
|
|
qp->access = sb->access;
|
|
qp->pkey_index = le16_to_cpu(sb->pkey);
|
|
qp->qkey = le32_to_cpu(sb->qkey);
|
|
|
|
temp32[0] = le32_to_cpu(sb->dgid[0]);
|
|
temp32[1] = le32_to_cpu(sb->dgid[1]);
|
|
temp32[2] = le32_to_cpu(sb->dgid[2]);
|
|
temp32[3] = le32_to_cpu(sb->dgid[3]);
|
|
memcpy(qp->ah.dgid.data, temp32, sizeof(qp->ah.dgid.data));
|
|
|
|
qp->ah.flow_label = le32_to_cpu(sb->flow_label);
|
|
|
|
qp->ah.sgid_index = 0;
|
|
for (i = 0; i < res->sgid_tbl.max; i++) {
|
|
if (res->sgid_tbl.hw_id[i] == le16_to_cpu(sb->sgid_index)) {
|
|
qp->ah.sgid_index = i;
|
|
break;
|
|
}
|
|
}
|
|
if (i == res->sgid_tbl.max)
|
|
dev_warn(&res->pdev->dev, "QPLIB: SGID not found??");
|
|
|
|
qp->ah.hop_limit = sb->hop_limit;
|
|
qp->ah.traffic_class = sb->traffic_class;
|
|
memcpy(qp->ah.dmac, sb->dest_mac, 6);
|
|
qp->ah.vlan_id = (le16_to_cpu(sb->path_mtu_dest_vlan_id) &
|
|
CREQ_QUERY_QP_RESP_SB_VLAN_ID_MASK) >>
|
|
CREQ_QUERY_QP_RESP_SB_VLAN_ID_SFT;
|
|
qp->path_mtu = (le16_to_cpu(sb->path_mtu_dest_vlan_id) &
|
|
CREQ_QUERY_QP_RESP_SB_PATH_MTU_MASK) >>
|
|
CREQ_QUERY_QP_RESP_SB_PATH_MTU_SFT;
|
|
qp->timeout = sb->timeout;
|
|
qp->retry_cnt = sb->retry_cnt;
|
|
qp->rnr_retry = sb->rnr_retry;
|
|
qp->min_rnr_timer = sb->min_rnr_timer;
|
|
qp->rq.psn = le32_to_cpu(sb->rq_psn);
|
|
qp->max_rd_atomic = ORRQ_SLOTS_TO_ORD_LIMIT(sb->max_rd_atomic);
|
|
qp->sq.psn = le32_to_cpu(sb->sq_psn);
|
|
qp->max_dest_rd_atomic =
|
|
IRRQ_SLOTS_TO_IRD_LIMIT(sb->max_dest_rd_atomic);
|
|
qp->sq.max_wqe = qp->sq.hwq.max_elements;
|
|
qp->rq.max_wqe = qp->rq.hwq.max_elements;
|
|
qp->sq.max_sge = le16_to_cpu(sb->sq_sge);
|
|
qp->rq.max_sge = le16_to_cpu(sb->rq_sge);
|
|
qp->max_inline_data = le32_to_cpu(sb->max_inline_data);
|
|
qp->dest_qpn = le32_to_cpu(sb->dest_qp_id);
|
|
memcpy(qp->smac, sb->src_mac, 6);
|
|
qp->vlan_id = le16_to_cpu(sb->vlan_pcp_vlan_dei_vlan_id);
|
|
bail:
|
|
bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
|
|
return rc;
|
|
}
|
|
|
|
static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp)
|
|
{
|
|
struct bnxt_qplib_hwq *cq_hwq = &cq->hwq;
|
|
struct cq_base *hw_cqe, **hw_cqe_ptr;
|
|
int i;
|
|
|
|
for (i = 0; i < cq_hwq->max_elements; i++) {
|
|
hw_cqe_ptr = (struct cq_base **)cq_hwq->pbl_ptr;
|
|
hw_cqe = &hw_cqe_ptr[CQE_PG(i)][CQE_IDX(i)];
|
|
if (!CQE_CMP_VALID(hw_cqe, i, cq_hwq->max_elements))
|
|
continue;
|
|
/*
|
|
* The valid test of the entry must be done first before
|
|
* reading any further.
|
|
*/
|
|
dma_rmb();
|
|
switch (hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK) {
|
|
case CQ_BASE_CQE_TYPE_REQ:
|
|
case CQ_BASE_CQE_TYPE_TERMINAL:
|
|
{
|
|
struct cq_req *cqe = (struct cq_req *)hw_cqe;
|
|
|
|
if (qp == le64_to_cpu(cqe->qp_handle))
|
|
cqe->qp_handle = 0;
|
|
break;
|
|
}
|
|
case CQ_BASE_CQE_TYPE_RES_RC:
|
|
case CQ_BASE_CQE_TYPE_RES_UD:
|
|
case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
|
|
{
|
|
struct cq_res_rc *cqe = (struct cq_res_rc *)hw_cqe;
|
|
|
|
if (qp == le64_to_cpu(cqe->qp_handle))
|
|
cqe->qp_handle = 0;
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
|
|
struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_destroy_qp req;
|
|
struct creq_destroy_qp_resp resp;
|
|
u16 cmd_flags = 0;
|
|
int rc;
|
|
|
|
rcfw->qp_tbl[qp->id].qp_id = BNXT_QPLIB_QP_ID_INVALID;
|
|
rcfw->qp_tbl[qp->id].qp_handle = NULL;
|
|
|
|
RCFW_CMD_PREP(req, DESTROY_QP, cmd_flags);
|
|
|
|
req.qp_cid = cpu_to_le32(qp->id);
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
|
|
(void *)&resp, NULL, 0);
|
|
if (rc) {
|
|
rcfw->qp_tbl[qp->id].qp_id = qp->id;
|
|
rcfw->qp_tbl[qp->id].qp_handle = qp;
|
|
return rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res,
|
|
struct bnxt_qplib_qp *qp)
|
|
{
|
|
bnxt_qplib_free_qp_hdr_buf(res, qp);
|
|
bnxt_qplib_free_hwq(res->pdev, &qp->sq.hwq);
|
|
kfree(qp->sq.swq);
|
|
|
|
bnxt_qplib_free_hwq(res->pdev, &qp->rq.hwq);
|
|
kfree(qp->rq.swq);
|
|
|
|
if (qp->irrq.max_elements)
|
|
bnxt_qplib_free_hwq(res->pdev, &qp->irrq);
|
|
if (qp->orrq.max_elements)
|
|
bnxt_qplib_free_hwq(res->pdev, &qp->orrq);
|
|
|
|
}
|
|
|
|
void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp,
|
|
struct bnxt_qplib_sge *sge)
|
|
{
|
|
struct bnxt_qplib_q *sq = &qp->sq;
|
|
u32 sw_prod;
|
|
|
|
memset(sge, 0, sizeof(*sge));
|
|
|
|
if (qp->sq_hdr_buf) {
|
|
sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
|
|
sge->addr = (dma_addr_t)(qp->sq_hdr_buf_map +
|
|
sw_prod * qp->sq_hdr_buf_size);
|
|
sge->lkey = 0xFFFFFFFF;
|
|
sge->size = qp->sq_hdr_buf_size;
|
|
return qp->sq_hdr_buf + sw_prod * sge->size;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
u32 bnxt_qplib_get_rq_prod_index(struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_q *rq = &qp->rq;
|
|
|
|
return HWQ_CMP(rq->hwq.prod, &rq->hwq);
|
|
}
|
|
|
|
dma_addr_t bnxt_qplib_get_qp_buf_from_index(struct bnxt_qplib_qp *qp, u32 index)
|
|
{
|
|
return (qp->rq_hdr_buf_map + index * qp->rq_hdr_buf_size);
|
|
}
|
|
|
|
void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp,
|
|
struct bnxt_qplib_sge *sge)
|
|
{
|
|
struct bnxt_qplib_q *rq = &qp->rq;
|
|
u32 sw_prod;
|
|
|
|
memset(sge, 0, sizeof(*sge));
|
|
|
|
if (qp->rq_hdr_buf) {
|
|
sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
|
|
sge->addr = (dma_addr_t)(qp->rq_hdr_buf_map +
|
|
sw_prod * qp->rq_hdr_buf_size);
|
|
sge->lkey = 0xFFFFFFFF;
|
|
sge->size = qp->rq_hdr_buf_size;
|
|
return qp->rq_hdr_buf + sw_prod * sge->size;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void bnxt_qplib_post_send_db(struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_q *sq = &qp->sq;
|
|
struct dbr_dbr db_msg = { 0 };
|
|
u32 sw_prod;
|
|
|
|
sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
|
|
|
|
db_msg.index = cpu_to_le32((sw_prod << DBR_DBR_INDEX_SFT) &
|
|
DBR_DBR_INDEX_MASK);
|
|
db_msg.type_xid =
|
|
cpu_to_le32(((qp->id << DBR_DBR_XID_SFT) & DBR_DBR_XID_MASK) |
|
|
DBR_DBR_TYPE_SQ);
|
|
/* Flush all the WQE writes to HW */
|
|
wmb();
|
|
__iowrite64_copy(qp->dpi->dbr, &db_msg, sizeof(db_msg) / sizeof(u64));
|
|
}
|
|
|
|
int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
|
|
struct bnxt_qplib_swqe *wqe)
|
|
{
|
|
struct bnxt_qplib_q *sq = &qp->sq;
|
|
struct bnxt_qplib_swq *swq;
|
|
struct sq_send *hw_sq_send_hdr, **hw_sq_send_ptr;
|
|
struct sq_sge *hw_sge;
|
|
struct bnxt_qplib_nq_work *nq_work = NULL;
|
|
bool sch_handler = false;
|
|
u32 sw_prod;
|
|
u8 wqe_size16;
|
|
int i, rc = 0, data_len = 0, pkt_num = 0;
|
|
__le32 temp32;
|
|
|
|
if (qp->state != CMDQ_MODIFY_QP_NEW_STATE_RTS) {
|
|
if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
|
|
sch_handler = true;
|
|
dev_dbg(&sq->hwq.pdev->dev,
|
|
"%s Error QP. Scheduling for poll_cq\n",
|
|
__func__);
|
|
goto queue_err;
|
|
}
|
|
}
|
|
|
|
if (bnxt_qplib_queue_full(sq)) {
|
|
dev_err(&sq->hwq.pdev->dev,
|
|
"QPLIB: prod = %#x cons = %#x qdepth = %#x delta = %#x",
|
|
sq->hwq.prod, sq->hwq.cons, sq->hwq.max_elements,
|
|
sq->q_full_delta);
|
|
rc = -ENOMEM;
|
|
goto done;
|
|
}
|
|
sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
|
|
swq = &sq->swq[sw_prod];
|
|
swq->wr_id = wqe->wr_id;
|
|
swq->type = wqe->type;
|
|
swq->flags = wqe->flags;
|
|
if (qp->sig_type)
|
|
swq->flags |= SQ_SEND_FLAGS_SIGNAL_COMP;
|
|
swq->start_psn = sq->psn & BTH_PSN_MASK;
|
|
|
|
hw_sq_send_ptr = (struct sq_send **)sq->hwq.pbl_ptr;
|
|
hw_sq_send_hdr = &hw_sq_send_ptr[get_sqe_pg(sw_prod)]
|
|
[get_sqe_idx(sw_prod)];
|
|
|
|
memset(hw_sq_send_hdr, 0, BNXT_QPLIB_MAX_SQE_ENTRY_SIZE);
|
|
|
|
if (wqe->flags & BNXT_QPLIB_SWQE_FLAGS_INLINE) {
|
|
/* Copy the inline data */
|
|
if (wqe->inline_len > BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH) {
|
|
dev_warn(&sq->hwq.pdev->dev,
|
|
"QPLIB: Inline data length > 96 detected");
|
|
data_len = BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH;
|
|
} else {
|
|
data_len = wqe->inline_len;
|
|
}
|
|
memcpy(hw_sq_send_hdr->data, wqe->inline_data, data_len);
|
|
wqe_size16 = (data_len + 15) >> 4;
|
|
} else {
|
|
for (i = 0, hw_sge = (struct sq_sge *)hw_sq_send_hdr->data;
|
|
i < wqe->num_sge; i++, hw_sge++) {
|
|
hw_sge->va_or_pa = cpu_to_le64(wqe->sg_list[i].addr);
|
|
hw_sge->l_key = cpu_to_le32(wqe->sg_list[i].lkey);
|
|
hw_sge->size = cpu_to_le32(wqe->sg_list[i].size);
|
|
data_len += wqe->sg_list[i].size;
|
|
}
|
|
/* Each SGE entry = 1 WQE size16 */
|
|
wqe_size16 = wqe->num_sge;
|
|
/* HW requires wqe size has room for atleast one SGE even if
|
|
* none was supplied by ULP
|
|
*/
|
|
if (!wqe->num_sge)
|
|
wqe_size16++;
|
|
}
|
|
|
|
/* Specifics */
|
|
switch (wqe->type) {
|
|
case BNXT_QPLIB_SWQE_TYPE_SEND:
|
|
if (qp->type == CMDQ_CREATE_QP1_TYPE_GSI) {
|
|
/* Assemble info for Raw Ethertype QPs */
|
|
struct sq_send_raweth_qp1 *sqe =
|
|
(struct sq_send_raweth_qp1 *)hw_sq_send_hdr;
|
|
|
|
sqe->wqe_type = wqe->type;
|
|
sqe->flags = wqe->flags;
|
|
sqe->wqe_size = wqe_size16 +
|
|
((offsetof(typeof(*sqe), data) + 15) >> 4);
|
|
sqe->cfa_action = cpu_to_le16(wqe->rawqp1.cfa_action);
|
|
sqe->lflags = cpu_to_le16(wqe->rawqp1.lflags);
|
|
sqe->length = cpu_to_le32(data_len);
|
|
sqe->cfa_meta = cpu_to_le32((wqe->rawqp1.cfa_meta &
|
|
SQ_SEND_RAWETH_QP1_CFA_META_VLAN_VID_MASK) <<
|
|
SQ_SEND_RAWETH_QP1_CFA_META_VLAN_VID_SFT);
|
|
|
|
break;
|
|
}
|
|
/* fall thru */
|
|
case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM:
|
|
case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV:
|
|
{
|
|
struct sq_send *sqe = (struct sq_send *)hw_sq_send_hdr;
|
|
|
|
sqe->wqe_type = wqe->type;
|
|
sqe->flags = wqe->flags;
|
|
sqe->wqe_size = wqe_size16 +
|
|
((offsetof(typeof(*sqe), data) + 15) >> 4);
|
|
sqe->inv_key_or_imm_data = cpu_to_le32(
|
|
wqe->send.inv_key);
|
|
if (qp->type == CMDQ_CREATE_QP_TYPE_UD) {
|
|
sqe->q_key = cpu_to_le32(wqe->send.q_key);
|
|
sqe->dst_qp = cpu_to_le32(
|
|
wqe->send.dst_qp & SQ_SEND_DST_QP_MASK);
|
|
sqe->length = cpu_to_le32(data_len);
|
|
sqe->avid = cpu_to_le32(wqe->send.avid &
|
|
SQ_SEND_AVID_MASK);
|
|
sq->psn = (sq->psn + 1) & BTH_PSN_MASK;
|
|
} else {
|
|
sqe->length = cpu_to_le32(data_len);
|
|
sqe->dst_qp = 0;
|
|
sqe->avid = 0;
|
|
if (qp->mtu)
|
|
pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
|
|
if (!pkt_num)
|
|
pkt_num = 1;
|
|
sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
|
|
}
|
|
break;
|
|
}
|
|
case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE:
|
|
case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM:
|
|
case BNXT_QPLIB_SWQE_TYPE_RDMA_READ:
|
|
{
|
|
struct sq_rdma *sqe = (struct sq_rdma *)hw_sq_send_hdr;
|
|
|
|
sqe->wqe_type = wqe->type;
|
|
sqe->flags = wqe->flags;
|
|
sqe->wqe_size = wqe_size16 +
|
|
((offsetof(typeof(*sqe), data) + 15) >> 4);
|
|
sqe->imm_data = cpu_to_le32(wqe->rdma.inv_key);
|
|
sqe->length = cpu_to_le32((u32)data_len);
|
|
sqe->remote_va = cpu_to_le64(wqe->rdma.remote_va);
|
|
sqe->remote_key = cpu_to_le32(wqe->rdma.r_key);
|
|
if (qp->mtu)
|
|
pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
|
|
if (!pkt_num)
|
|
pkt_num = 1;
|
|
sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
|
|
break;
|
|
}
|
|
case BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP:
|
|
case BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD:
|
|
{
|
|
struct sq_atomic *sqe = (struct sq_atomic *)hw_sq_send_hdr;
|
|
|
|
sqe->wqe_type = wqe->type;
|
|
sqe->flags = wqe->flags;
|
|
sqe->remote_key = cpu_to_le32(wqe->atomic.r_key);
|
|
sqe->remote_va = cpu_to_le64(wqe->atomic.remote_va);
|
|
sqe->swap_data = cpu_to_le64(wqe->atomic.swap_data);
|
|
sqe->cmp_data = cpu_to_le64(wqe->atomic.cmp_data);
|
|
if (qp->mtu)
|
|
pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
|
|
if (!pkt_num)
|
|
pkt_num = 1;
|
|
sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
|
|
break;
|
|
}
|
|
case BNXT_QPLIB_SWQE_TYPE_LOCAL_INV:
|
|
{
|
|
struct sq_localinvalidate *sqe =
|
|
(struct sq_localinvalidate *)hw_sq_send_hdr;
|
|
|
|
sqe->wqe_type = wqe->type;
|
|
sqe->flags = wqe->flags;
|
|
sqe->inv_l_key = cpu_to_le32(wqe->local_inv.inv_l_key);
|
|
|
|
break;
|
|
}
|
|
case BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR:
|
|
{
|
|
struct sq_fr_pmr *sqe = (struct sq_fr_pmr *)hw_sq_send_hdr;
|
|
|
|
sqe->wqe_type = wqe->type;
|
|
sqe->flags = wqe->flags;
|
|
sqe->access_cntl = wqe->frmr.access_cntl |
|
|
SQ_FR_PMR_ACCESS_CNTL_LOCAL_WRITE;
|
|
sqe->zero_based_page_size_log =
|
|
(wqe->frmr.pg_sz_log & SQ_FR_PMR_PAGE_SIZE_LOG_MASK) <<
|
|
SQ_FR_PMR_PAGE_SIZE_LOG_SFT |
|
|
(wqe->frmr.zero_based ? SQ_FR_PMR_ZERO_BASED : 0);
|
|
sqe->l_key = cpu_to_le32(wqe->frmr.l_key);
|
|
temp32 = cpu_to_le32(wqe->frmr.length);
|
|
memcpy(sqe->length, &temp32, sizeof(wqe->frmr.length));
|
|
sqe->numlevels_pbl_page_size_log =
|
|
((wqe->frmr.pbl_pg_sz_log <<
|
|
SQ_FR_PMR_PBL_PAGE_SIZE_LOG_SFT) &
|
|
SQ_FR_PMR_PBL_PAGE_SIZE_LOG_MASK) |
|
|
((wqe->frmr.levels << SQ_FR_PMR_NUMLEVELS_SFT) &
|
|
SQ_FR_PMR_NUMLEVELS_MASK);
|
|
|
|
for (i = 0; i < wqe->frmr.page_list_len; i++)
|
|
wqe->frmr.pbl_ptr[i] = cpu_to_le64(
|
|
wqe->frmr.page_list[i] |
|
|
PTU_PTE_VALID);
|
|
sqe->pblptr = cpu_to_le64(wqe->frmr.pbl_dma_ptr);
|
|
sqe->va = cpu_to_le64(wqe->frmr.va);
|
|
|
|
break;
|
|
}
|
|
case BNXT_QPLIB_SWQE_TYPE_BIND_MW:
|
|
{
|
|
struct sq_bind *sqe = (struct sq_bind *)hw_sq_send_hdr;
|
|
|
|
sqe->wqe_type = wqe->type;
|
|
sqe->flags = wqe->flags;
|
|
sqe->access_cntl = wqe->bind.access_cntl;
|
|
sqe->mw_type_zero_based = wqe->bind.mw_type |
|
|
(wqe->bind.zero_based ? SQ_BIND_ZERO_BASED : 0);
|
|
sqe->parent_l_key = cpu_to_le32(wqe->bind.parent_l_key);
|
|
sqe->l_key = cpu_to_le32(wqe->bind.r_key);
|
|
sqe->va = cpu_to_le64(wqe->bind.va);
|
|
temp32 = cpu_to_le32(wqe->bind.length);
|
|
memcpy(&sqe->length, &temp32, sizeof(wqe->bind.length));
|
|
break;
|
|
}
|
|
default:
|
|
/* Bad wqe, return error */
|
|
rc = -EINVAL;
|
|
goto done;
|
|
}
|
|
swq->next_psn = sq->psn & BTH_PSN_MASK;
|
|
if (swq->psn_search) {
|
|
swq->psn_search->opcode_start_psn = cpu_to_le32(
|
|
((swq->start_psn << SQ_PSN_SEARCH_START_PSN_SFT) &
|
|
SQ_PSN_SEARCH_START_PSN_MASK) |
|
|
((wqe->type << SQ_PSN_SEARCH_OPCODE_SFT) &
|
|
SQ_PSN_SEARCH_OPCODE_MASK));
|
|
swq->psn_search->flags_next_psn = cpu_to_le32(
|
|
((swq->next_psn << SQ_PSN_SEARCH_NEXT_PSN_SFT) &
|
|
SQ_PSN_SEARCH_NEXT_PSN_MASK));
|
|
}
|
|
queue_err:
|
|
if (sch_handler) {
|
|
/* Store the ULP info in the software structures */
|
|
sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
|
|
swq = &sq->swq[sw_prod];
|
|
swq->wr_id = wqe->wr_id;
|
|
swq->type = wqe->type;
|
|
swq->flags = wqe->flags;
|
|
if (qp->sig_type)
|
|
swq->flags |= SQ_SEND_FLAGS_SIGNAL_COMP;
|
|
swq->start_psn = sq->psn & BTH_PSN_MASK;
|
|
}
|
|
sq->hwq.prod++;
|
|
qp->wqe_cnt++;
|
|
|
|
done:
|
|
if (sch_handler) {
|
|
nq_work = kzalloc(sizeof(*nq_work), GFP_ATOMIC);
|
|
if (nq_work) {
|
|
nq_work->cq = qp->scq;
|
|
nq_work->nq = qp->scq->nq;
|
|
INIT_WORK(&nq_work->work, bnxt_qpn_cqn_sched_task);
|
|
queue_work(qp->scq->nq->cqn_wq, &nq_work->work);
|
|
} else {
|
|
dev_err(&sq->hwq.pdev->dev,
|
|
"QPLIB: FP: Failed to allocate SQ nq_work!");
|
|
rc = -ENOMEM;
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp)
|
|
{
|
|
struct bnxt_qplib_q *rq = &qp->rq;
|
|
struct dbr_dbr db_msg = { 0 };
|
|
u32 sw_prod;
|
|
|
|
sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
|
|
db_msg.index = cpu_to_le32((sw_prod << DBR_DBR_INDEX_SFT) &
|
|
DBR_DBR_INDEX_MASK);
|
|
db_msg.type_xid =
|
|
cpu_to_le32(((qp->id << DBR_DBR_XID_SFT) & DBR_DBR_XID_MASK) |
|
|
DBR_DBR_TYPE_RQ);
|
|
|
|
/* Flush the writes to HW Rx WQE before the ringing Rx DB */
|
|
wmb();
|
|
__iowrite64_copy(qp->dpi->dbr, &db_msg, sizeof(db_msg) / sizeof(u64));
|
|
}
|
|
|
|
int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
|
|
struct bnxt_qplib_swqe *wqe)
|
|
{
|
|
struct bnxt_qplib_q *rq = &qp->rq;
|
|
struct rq_wqe *rqe, **rqe_ptr;
|
|
struct sq_sge *hw_sge;
|
|
struct bnxt_qplib_nq_work *nq_work = NULL;
|
|
bool sch_handler = false;
|
|
u32 sw_prod;
|
|
int i, rc = 0;
|
|
|
|
if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
|
|
sch_handler = true;
|
|
dev_dbg(&rq->hwq.pdev->dev,
|
|
"%s Error QP. Scheduling for poll_cq\n",
|
|
__func__);
|
|
goto queue_err;
|
|
}
|
|
if (bnxt_qplib_queue_full(rq)) {
|
|
dev_err(&rq->hwq.pdev->dev,
|
|
"QPLIB: FP: QP (0x%x) RQ is full!", qp->id);
|
|
rc = -EINVAL;
|
|
goto done;
|
|
}
|
|
sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
|
|
rq->swq[sw_prod].wr_id = wqe->wr_id;
|
|
|
|
rqe_ptr = (struct rq_wqe **)rq->hwq.pbl_ptr;
|
|
rqe = &rqe_ptr[RQE_PG(sw_prod)][RQE_IDX(sw_prod)];
|
|
|
|
memset(rqe, 0, BNXT_QPLIB_MAX_RQE_ENTRY_SIZE);
|
|
|
|
/* Calculate wqe_size16 and data_len */
|
|
for (i = 0, hw_sge = (struct sq_sge *)rqe->data;
|
|
i < wqe->num_sge; i++, hw_sge++) {
|
|
hw_sge->va_or_pa = cpu_to_le64(wqe->sg_list[i].addr);
|
|
hw_sge->l_key = cpu_to_le32(wqe->sg_list[i].lkey);
|
|
hw_sge->size = cpu_to_le32(wqe->sg_list[i].size);
|
|
}
|
|
rqe->wqe_type = wqe->type;
|
|
rqe->flags = wqe->flags;
|
|
rqe->wqe_size = wqe->num_sge +
|
|
((offsetof(typeof(*rqe), data) + 15) >> 4);
|
|
/* HW requires wqe size has room for atleast one SGE even if none
|
|
* was supplied by ULP
|
|
*/
|
|
if (!wqe->num_sge)
|
|
rqe->wqe_size++;
|
|
|
|
/* Supply the rqe->wr_id index to the wr_id_tbl for now */
|
|
rqe->wr_id[0] = cpu_to_le32(sw_prod);
|
|
|
|
queue_err:
|
|
if (sch_handler) {
|
|
/* Store the ULP info in the software structures */
|
|
sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
|
|
rq->swq[sw_prod].wr_id = wqe->wr_id;
|
|
}
|
|
|
|
rq->hwq.prod++;
|
|
if (sch_handler) {
|
|
nq_work = kzalloc(sizeof(*nq_work), GFP_ATOMIC);
|
|
if (nq_work) {
|
|
nq_work->cq = qp->rcq;
|
|
nq_work->nq = qp->rcq->nq;
|
|
INIT_WORK(&nq_work->work, bnxt_qpn_cqn_sched_task);
|
|
queue_work(qp->rcq->nq->cqn_wq, &nq_work->work);
|
|
} else {
|
|
dev_err(&rq->hwq.pdev->dev,
|
|
"QPLIB: FP: Failed to allocate RQ nq_work!");
|
|
rc = -ENOMEM;
|
|
}
|
|
}
|
|
done:
|
|
return rc;
|
|
}
|
|
|
|
/* CQ */
|
|
|
|
/* Spinlock must be held */
|
|
static void bnxt_qplib_arm_cq_enable(struct bnxt_qplib_cq *cq)
|
|
{
|
|
struct dbr_dbr db_msg = { 0 };
|
|
|
|
db_msg.type_xid =
|
|
cpu_to_le32(((cq->id << DBR_DBR_XID_SFT) & DBR_DBR_XID_MASK) |
|
|
DBR_DBR_TYPE_CQ_ARMENA);
|
|
/* Flush memory writes before enabling the CQ */
|
|
wmb();
|
|
__iowrite64_copy(cq->dbr_base, &db_msg, sizeof(db_msg) / sizeof(u64));
|
|
}
|
|
|
|
static void bnxt_qplib_arm_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
|
|
{
|
|
struct bnxt_qplib_hwq *cq_hwq = &cq->hwq;
|
|
struct dbr_dbr db_msg = { 0 };
|
|
u32 sw_cons;
|
|
|
|
/* Ring DB */
|
|
sw_cons = HWQ_CMP(cq_hwq->cons, cq_hwq);
|
|
db_msg.index = cpu_to_le32((sw_cons << DBR_DBR_INDEX_SFT) &
|
|
DBR_DBR_INDEX_MASK);
|
|
db_msg.type_xid =
|
|
cpu_to_le32(((cq->id << DBR_DBR_XID_SFT) & DBR_DBR_XID_MASK) |
|
|
arm_type);
|
|
/* flush memory writes before arming the CQ */
|
|
wmb();
|
|
__iowrite64_copy(cq->dpi->dbr, &db_msg, sizeof(db_msg) / sizeof(u64));
|
|
}
|
|
|
|
int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_create_cq req;
|
|
struct creq_create_cq_resp resp;
|
|
struct bnxt_qplib_pbl *pbl;
|
|
u16 cmd_flags = 0;
|
|
int rc;
|
|
|
|
cq->hwq.max_elements = cq->max_wqe;
|
|
rc = bnxt_qplib_alloc_init_hwq(res->pdev, &cq->hwq, cq->sghead,
|
|
cq->nmap, &cq->hwq.max_elements,
|
|
BNXT_QPLIB_MAX_CQE_ENTRY_SIZE, 0,
|
|
PAGE_SIZE, HWQ_TYPE_QUEUE);
|
|
if (rc)
|
|
goto exit;
|
|
|
|
RCFW_CMD_PREP(req, CREATE_CQ, cmd_flags);
|
|
|
|
if (!cq->dpi) {
|
|
dev_err(&rcfw->pdev->dev,
|
|
"QPLIB: FP: CREATE_CQ failed due to NULL DPI");
|
|
return -EINVAL;
|
|
}
|
|
req.dpi = cpu_to_le32(cq->dpi->dpi);
|
|
req.cq_handle = cpu_to_le64(cq->cq_handle);
|
|
|
|
req.cq_size = cpu_to_le32(cq->hwq.max_elements);
|
|
pbl = &cq->hwq.pbl[PBL_LVL_0];
|
|
req.pg_size_lvl = cpu_to_le32(
|
|
((cq->hwq.level & CMDQ_CREATE_CQ_LVL_MASK) <<
|
|
CMDQ_CREATE_CQ_LVL_SFT) |
|
|
(pbl->pg_size == ROCE_PG_SIZE_4K ? CMDQ_CREATE_CQ_PG_SIZE_PG_4K :
|
|
pbl->pg_size == ROCE_PG_SIZE_8K ? CMDQ_CREATE_CQ_PG_SIZE_PG_8K :
|
|
pbl->pg_size == ROCE_PG_SIZE_64K ? CMDQ_CREATE_CQ_PG_SIZE_PG_64K :
|
|
pbl->pg_size == ROCE_PG_SIZE_2M ? CMDQ_CREATE_CQ_PG_SIZE_PG_2M :
|
|
pbl->pg_size == ROCE_PG_SIZE_8M ? CMDQ_CREATE_CQ_PG_SIZE_PG_8M :
|
|
pbl->pg_size == ROCE_PG_SIZE_1G ? CMDQ_CREATE_CQ_PG_SIZE_PG_1G :
|
|
CMDQ_CREATE_CQ_PG_SIZE_PG_4K));
|
|
|
|
req.pbl = cpu_to_le64(pbl->pg_map_arr[0]);
|
|
|
|
req.cq_fco_cnq_id = cpu_to_le32(
|
|
(cq->cnq_hw_ring_id & CMDQ_CREATE_CQ_CNQ_ID_MASK) <<
|
|
CMDQ_CREATE_CQ_CNQ_ID_SFT);
|
|
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
|
|
(void *)&resp, NULL, 0);
|
|
if (rc)
|
|
goto fail;
|
|
|
|
cq->id = le32_to_cpu(resp.xid);
|
|
cq->dbr_base = res->dpi_tbl.dbr_bar_reg_iomem;
|
|
cq->period = BNXT_QPLIB_QUEUE_START_PERIOD;
|
|
init_waitqueue_head(&cq->waitq);
|
|
INIT_LIST_HEAD(&cq->sqf_head);
|
|
INIT_LIST_HEAD(&cq->rqf_head);
|
|
spin_lock_init(&cq->compl_lock);
|
|
|
|
bnxt_qplib_arm_cq_enable(cq);
|
|
return 0;
|
|
|
|
fail:
|
|
bnxt_qplib_free_hwq(res->pdev, &cq->hwq);
|
|
exit:
|
|
return rc;
|
|
}
|
|
|
|
int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
|
|
{
|
|
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
|
|
struct cmdq_destroy_cq req;
|
|
struct creq_destroy_cq_resp resp;
|
|
u16 cmd_flags = 0;
|
|
int rc;
|
|
|
|
RCFW_CMD_PREP(req, DESTROY_CQ, cmd_flags);
|
|
|
|
req.cq_cid = cpu_to_le32(cq->id);
|
|
rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
|
|
(void *)&resp, NULL, 0);
|
|
if (rc)
|
|
return rc;
|
|
bnxt_qplib_free_hwq(res->pdev, &cq->hwq);
|
|
return 0;
|
|
}
|
|
|
|
static int __flush_sq(struct bnxt_qplib_q *sq, struct bnxt_qplib_qp *qp,
|
|
struct bnxt_qplib_cqe **pcqe, int *budget)
|
|
{
|
|
u32 sw_prod, sw_cons;
|
|
struct bnxt_qplib_cqe *cqe;
|
|
int rc = 0;
|
|
|
|
/* Now complete all outstanding SQEs with FLUSHED_ERR */
|
|
sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
|
|
cqe = *pcqe;
|
|
while (*budget) {
|
|
sw_cons = HWQ_CMP(sq->hwq.cons, &sq->hwq);
|
|
if (sw_cons == sw_prod) {
|
|
break;
|
|
}
|
|
/* Skip the FENCE WQE completions */
|
|
if (sq->swq[sw_cons].wr_id == BNXT_QPLIB_FENCE_WRID) {
|
|
bnxt_qplib_cancel_phantom_processing(qp);
|
|
goto skip_compl;
|
|
}
|
|
memset(cqe, 0, sizeof(*cqe));
|
|
cqe->status = CQ_REQ_STATUS_WORK_REQUEST_FLUSHED_ERR;
|
|
cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
|
|
cqe->qp_handle = (u64)(unsigned long)qp;
|
|
cqe->wr_id = sq->swq[sw_cons].wr_id;
|
|
cqe->src_qp = qp->id;
|
|
cqe->type = sq->swq[sw_cons].type;
|
|
cqe++;
|
|
(*budget)--;
|
|
skip_compl:
|
|
sq->hwq.cons++;
|
|
}
|
|
*pcqe = cqe;
|
|
if (!(*budget) && HWQ_CMP(sq->hwq.cons, &sq->hwq) != sw_prod)
|
|
/* Out of budget */
|
|
rc = -EAGAIN;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int __flush_rq(struct bnxt_qplib_q *rq, struct bnxt_qplib_qp *qp,
|
|
struct bnxt_qplib_cqe **pcqe, int *budget)
|
|
{
|
|
struct bnxt_qplib_cqe *cqe;
|
|
u32 sw_prod, sw_cons;
|
|
int rc = 0;
|
|
int opcode = 0;
|
|
|
|
switch (qp->type) {
|
|
case CMDQ_CREATE_QP1_TYPE_GSI:
|
|
opcode = CQ_BASE_CQE_TYPE_RES_RAWETH_QP1;
|
|
break;
|
|
case CMDQ_CREATE_QP_TYPE_RC:
|
|
opcode = CQ_BASE_CQE_TYPE_RES_RC;
|
|
break;
|
|
case CMDQ_CREATE_QP_TYPE_UD:
|
|
opcode = CQ_BASE_CQE_TYPE_RES_UD;
|
|
break;
|
|
}
|
|
|
|
/* Flush the rest of the RQ */
|
|
sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
|
|
cqe = *pcqe;
|
|
while (*budget) {
|
|
sw_cons = HWQ_CMP(rq->hwq.cons, &rq->hwq);
|
|
if (sw_cons == sw_prod)
|
|
break;
|
|
memset(cqe, 0, sizeof(*cqe));
|
|
cqe->status =
|
|
CQ_RES_RC_STATUS_WORK_REQUEST_FLUSHED_ERR;
|
|
cqe->opcode = opcode;
|
|
cqe->qp_handle = (unsigned long)qp;
|
|
cqe->wr_id = rq->swq[sw_cons].wr_id;
|
|
cqe++;
|
|
(*budget)--;
|
|
rq->hwq.cons++;
|
|
}
|
|
*pcqe = cqe;
|
|
if (!*budget && HWQ_CMP(rq->hwq.cons, &rq->hwq) != sw_prod)
|
|
/* Out of budget */
|
|
rc = -EAGAIN;
|
|
|
|
return rc;
|
|
}
|
|
|
|
void bnxt_qplib_mark_qp_error(void *qp_handle)
|
|
{
|
|
struct bnxt_qplib_qp *qp = qp_handle;
|
|
|
|
if (!qp)
|
|
return;
|
|
|
|
/* Must block new posting of SQ and RQ */
|
|
qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
|
|
bnxt_qplib_cancel_phantom_processing(qp);
|
|
}
|
|
|
|
/* Note: SQE is valid from sw_sq_cons up to cqe_sq_cons (exclusive)
|
|
* CQE is track from sw_cq_cons to max_element but valid only if VALID=1
|
|
*/
|
|
static int do_wa9060(struct bnxt_qplib_qp *qp, struct bnxt_qplib_cq *cq,
|
|
u32 cq_cons, u32 sw_sq_cons, u32 cqe_sq_cons)
|
|
{
|
|
struct bnxt_qplib_q *sq = &qp->sq;
|
|
struct bnxt_qplib_swq *swq;
|
|
u32 peek_sw_cq_cons, peek_raw_cq_cons, peek_sq_cons_idx;
|
|
struct cq_base *peek_hwcqe, **peek_hw_cqe_ptr;
|
|
struct cq_req *peek_req_hwcqe;
|
|
struct bnxt_qplib_qp *peek_qp;
|
|
struct bnxt_qplib_q *peek_sq;
|
|
int i, rc = 0;
|
|
|
|
/* Normal mode */
|
|
/* Check for the psn_search marking before completing */
|
|
swq = &sq->swq[sw_sq_cons];
|
|
if (swq->psn_search &&
|
|
le32_to_cpu(swq->psn_search->flags_next_psn) & 0x80000000) {
|
|
/* Unmark */
|
|
swq->psn_search->flags_next_psn = cpu_to_le32
|
|
(le32_to_cpu(swq->psn_search->flags_next_psn)
|
|
& ~0x80000000);
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"FP: Process Req cq_cons=0x%x qp=0x%x sq cons sw=0x%x cqe=0x%x marked!\n",
|
|
cq_cons, qp->id, sw_sq_cons, cqe_sq_cons);
|
|
sq->condition = true;
|
|
sq->send_phantom = true;
|
|
|
|
/* TODO: Only ARM if the previous SQE is ARMALL */
|
|
bnxt_qplib_arm_cq(cq, DBR_DBR_TYPE_CQ_ARMALL);
|
|
|
|
rc = -EAGAIN;
|
|
goto out;
|
|
}
|
|
if (sq->condition) {
|
|
/* Peek at the completions */
|
|
peek_raw_cq_cons = cq->hwq.cons;
|
|
peek_sw_cq_cons = cq_cons;
|
|
i = cq->hwq.max_elements;
|
|
while (i--) {
|
|
peek_sw_cq_cons = HWQ_CMP((peek_sw_cq_cons), &cq->hwq);
|
|
peek_hw_cqe_ptr = (struct cq_base **)cq->hwq.pbl_ptr;
|
|
peek_hwcqe = &peek_hw_cqe_ptr[CQE_PG(peek_sw_cq_cons)]
|
|
[CQE_IDX(peek_sw_cq_cons)];
|
|
/* If the next hwcqe is VALID */
|
|
if (CQE_CMP_VALID(peek_hwcqe, peek_raw_cq_cons,
|
|
cq->hwq.max_elements)) {
|
|
/*
|
|
* The valid test of the entry must be done first before
|
|
* reading any further.
|
|
*/
|
|
dma_rmb();
|
|
/* If the next hwcqe is a REQ */
|
|
if ((peek_hwcqe->cqe_type_toggle &
|
|
CQ_BASE_CQE_TYPE_MASK) ==
|
|
CQ_BASE_CQE_TYPE_REQ) {
|
|
peek_req_hwcqe = (struct cq_req *)
|
|
peek_hwcqe;
|
|
peek_qp = (struct bnxt_qplib_qp *)
|
|
((unsigned long)
|
|
le64_to_cpu
|
|
(peek_req_hwcqe->qp_handle));
|
|
peek_sq = &peek_qp->sq;
|
|
peek_sq_cons_idx = HWQ_CMP(le16_to_cpu(
|
|
peek_req_hwcqe->sq_cons_idx) - 1
|
|
, &sq->hwq);
|
|
/* If the hwcqe's sq's wr_id matches */
|
|
if (peek_sq == sq &&
|
|
sq->swq[peek_sq_cons_idx].wr_id ==
|
|
BNXT_QPLIB_FENCE_WRID) {
|
|
/*
|
|
* Unbreak only if the phantom
|
|
* comes back
|
|
*/
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"FP:Got Phantom CQE");
|
|
sq->condition = false;
|
|
sq->single = true;
|
|
rc = 0;
|
|
goto out;
|
|
}
|
|
}
|
|
/* Valid but not the phantom, so keep looping */
|
|
} else {
|
|
/* Not valid yet, just exit and wait */
|
|
rc = -EINVAL;
|
|
goto out;
|
|
}
|
|
peek_sw_cq_cons++;
|
|
peek_raw_cq_cons++;
|
|
}
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"Should not have come here! cq_cons=0x%x qp=0x%x sq cons sw=0x%x hw=0x%x",
|
|
cq_cons, qp->id, sw_sq_cons, cqe_sq_cons);
|
|
rc = -EINVAL;
|
|
}
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
static int bnxt_qplib_cq_process_req(struct bnxt_qplib_cq *cq,
|
|
struct cq_req *hwcqe,
|
|
struct bnxt_qplib_cqe **pcqe, int *budget,
|
|
u32 cq_cons, struct bnxt_qplib_qp **lib_qp)
|
|
{
|
|
struct bnxt_qplib_qp *qp;
|
|
struct bnxt_qplib_q *sq;
|
|
struct bnxt_qplib_cqe *cqe;
|
|
u32 sw_sq_cons, cqe_sq_cons;
|
|
struct bnxt_qplib_swq *swq;
|
|
int rc = 0;
|
|
|
|
qp = (struct bnxt_qplib_qp *)((unsigned long)
|
|
le64_to_cpu(hwcqe->qp_handle));
|
|
if (!qp) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: Process Req qp is NULL");
|
|
return -EINVAL;
|
|
}
|
|
sq = &qp->sq;
|
|
|
|
cqe_sq_cons = HWQ_CMP(le16_to_cpu(hwcqe->sq_cons_idx), &sq->hwq);
|
|
if (cqe_sq_cons > sq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process req reported ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: sq_cons_idx 0x%x which exceeded max 0x%x",
|
|
cqe_sq_cons, sq->hwq.max_elements);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (qp->sq.flushed) {
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"%s: QPLIB: QP in Flush QP = %p\n", __func__, qp);
|
|
goto done;
|
|
}
|
|
/* Require to walk the sq's swq to fabricate CQEs for all previously
|
|
* signaled SWQEs due to CQE aggregation from the current sq cons
|
|
* to the cqe_sq_cons
|
|
*/
|
|
cqe = *pcqe;
|
|
while (*budget) {
|
|
sw_sq_cons = HWQ_CMP(sq->hwq.cons, &sq->hwq);
|
|
if (sw_sq_cons == cqe_sq_cons)
|
|
/* Done */
|
|
break;
|
|
|
|
swq = &sq->swq[sw_sq_cons];
|
|
memset(cqe, 0, sizeof(*cqe));
|
|
cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
|
|
cqe->qp_handle = (u64)(unsigned long)qp;
|
|
cqe->src_qp = qp->id;
|
|
cqe->wr_id = swq->wr_id;
|
|
if (cqe->wr_id == BNXT_QPLIB_FENCE_WRID)
|
|
goto skip;
|
|
cqe->type = swq->type;
|
|
|
|
/* For the last CQE, check for status. For errors, regardless
|
|
* of the request being signaled or not, it must complete with
|
|
* the hwcqe error status
|
|
*/
|
|
if (HWQ_CMP((sw_sq_cons + 1), &sq->hwq) == cqe_sq_cons &&
|
|
hwcqe->status != CQ_REQ_STATUS_OK) {
|
|
cqe->status = hwcqe->status;
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Processed Req ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: wr_id[%d] = 0x%llx with status 0x%x",
|
|
sw_sq_cons, cqe->wr_id, cqe->status);
|
|
cqe++;
|
|
(*budget)--;
|
|
bnxt_qplib_mark_qp_error(qp);
|
|
/* Add qp to flush list of the CQ */
|
|
bnxt_qplib_add_flush_qp(qp);
|
|
} else {
|
|
if (swq->flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
|
|
/* Before we complete, do WA 9060 */
|
|
if (do_wa9060(qp, cq, cq_cons, sw_sq_cons,
|
|
cqe_sq_cons)) {
|
|
*lib_qp = qp;
|
|
goto out;
|
|
}
|
|
cqe->status = CQ_REQ_STATUS_OK;
|
|
cqe++;
|
|
(*budget)--;
|
|
}
|
|
}
|
|
skip:
|
|
sq->hwq.cons++;
|
|
if (sq->single)
|
|
break;
|
|
}
|
|
out:
|
|
*pcqe = cqe;
|
|
if (HWQ_CMP(sq->hwq.cons, &sq->hwq) != cqe_sq_cons) {
|
|
/* Out of budget */
|
|
rc = -EAGAIN;
|
|
goto done;
|
|
}
|
|
/*
|
|
* Back to normal completion mode only after it has completed all of
|
|
* the WC for this CQE
|
|
*/
|
|
sq->single = false;
|
|
done:
|
|
return rc;
|
|
}
|
|
|
|
static void bnxt_qplib_release_srqe(struct bnxt_qplib_srq *srq, u32 tag)
|
|
{
|
|
spin_lock(&srq->hwq.lock);
|
|
srq->swq[srq->last_idx].next_idx = (int)tag;
|
|
srq->last_idx = (int)tag;
|
|
srq->swq[srq->last_idx].next_idx = -1;
|
|
srq->hwq.cons++; /* Support for SRQE counter */
|
|
spin_unlock(&srq->hwq.lock);
|
|
}
|
|
|
|
static int bnxt_qplib_cq_process_res_rc(struct bnxt_qplib_cq *cq,
|
|
struct cq_res_rc *hwcqe,
|
|
struct bnxt_qplib_cqe **pcqe,
|
|
int *budget)
|
|
{
|
|
struct bnxt_qplib_qp *qp;
|
|
struct bnxt_qplib_q *rq;
|
|
struct bnxt_qplib_srq *srq;
|
|
struct bnxt_qplib_cqe *cqe;
|
|
u32 wr_id_idx;
|
|
int rc = 0;
|
|
|
|
qp = (struct bnxt_qplib_qp *)((unsigned long)
|
|
le64_to_cpu(hwcqe->qp_handle));
|
|
if (!qp) {
|
|
dev_err(&cq->hwq.pdev->dev, "QPLIB: process_cq RC qp is NULL");
|
|
return -EINVAL;
|
|
}
|
|
if (qp->rq.flushed) {
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"%s: QPLIB: QP in Flush QP = %p\n", __func__, qp);
|
|
goto done;
|
|
}
|
|
|
|
cqe = *pcqe;
|
|
cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
|
|
cqe->length = le32_to_cpu(hwcqe->length);
|
|
cqe->invrkey = le32_to_cpu(hwcqe->imm_data_or_inv_r_key);
|
|
cqe->mr_handle = le64_to_cpu(hwcqe->mr_handle);
|
|
cqe->flags = le16_to_cpu(hwcqe->flags);
|
|
cqe->status = hwcqe->status;
|
|
cqe->qp_handle = (u64)(unsigned long)qp;
|
|
|
|
wr_id_idx = le32_to_cpu(hwcqe->srq_or_rq_wr_id) &
|
|
CQ_RES_RC_SRQ_OR_RQ_WR_ID_MASK;
|
|
if (cqe->flags & CQ_RES_RC_FLAGS_SRQ_SRQ) {
|
|
srq = qp->srq;
|
|
if (!srq)
|
|
return -EINVAL;
|
|
if (wr_id_idx > srq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process RC ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: wr_id idx 0x%x exceeded SRQ max 0x%x",
|
|
wr_id_idx, srq->hwq.max_elements);
|
|
return -EINVAL;
|
|
}
|
|
cqe->wr_id = srq->swq[wr_id_idx].wr_id;
|
|
bnxt_qplib_release_srqe(srq, wr_id_idx);
|
|
cqe++;
|
|
(*budget)--;
|
|
*pcqe = cqe;
|
|
} else {
|
|
rq = &qp->rq;
|
|
if (wr_id_idx > rq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process RC ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: wr_id idx 0x%x exceeded RQ max 0x%x",
|
|
wr_id_idx, rq->hwq.max_elements);
|
|
return -EINVAL;
|
|
}
|
|
cqe->wr_id = rq->swq[wr_id_idx].wr_id;
|
|
cqe++;
|
|
(*budget)--;
|
|
rq->hwq.cons++;
|
|
*pcqe = cqe;
|
|
|
|
if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
|
|
qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
|
|
/* Add qp to flush list of the CQ */
|
|
bnxt_qplib_add_flush_qp(qp);
|
|
}
|
|
}
|
|
|
|
done:
|
|
return rc;
|
|
}
|
|
|
|
static int bnxt_qplib_cq_process_res_ud(struct bnxt_qplib_cq *cq,
|
|
struct cq_res_ud *hwcqe,
|
|
struct bnxt_qplib_cqe **pcqe,
|
|
int *budget)
|
|
{
|
|
struct bnxt_qplib_qp *qp;
|
|
struct bnxt_qplib_q *rq;
|
|
struct bnxt_qplib_srq *srq;
|
|
struct bnxt_qplib_cqe *cqe;
|
|
u32 wr_id_idx;
|
|
int rc = 0;
|
|
|
|
qp = (struct bnxt_qplib_qp *)((unsigned long)
|
|
le64_to_cpu(hwcqe->qp_handle));
|
|
if (!qp) {
|
|
dev_err(&cq->hwq.pdev->dev, "QPLIB: process_cq UD qp is NULL");
|
|
return -EINVAL;
|
|
}
|
|
if (qp->rq.flushed) {
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"%s: QPLIB: QP in Flush QP = %p\n", __func__, qp);
|
|
goto done;
|
|
}
|
|
cqe = *pcqe;
|
|
cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
|
|
cqe->length = le32_to_cpu(hwcqe->length);
|
|
cqe->invrkey = le32_to_cpu(hwcqe->imm_data);
|
|
cqe->flags = le16_to_cpu(hwcqe->flags);
|
|
cqe->status = hwcqe->status;
|
|
cqe->qp_handle = (u64)(unsigned long)qp;
|
|
memcpy(cqe->smac, hwcqe->src_mac, 6);
|
|
wr_id_idx = le32_to_cpu(hwcqe->src_qp_high_srq_or_rq_wr_id)
|
|
& CQ_RES_UD_SRQ_OR_RQ_WR_ID_MASK;
|
|
cqe->src_qp = le16_to_cpu(hwcqe->src_qp_low) |
|
|
((le32_to_cpu(
|
|
hwcqe->src_qp_high_srq_or_rq_wr_id) &
|
|
CQ_RES_UD_SRC_QP_HIGH_MASK) >> 8);
|
|
|
|
if (cqe->flags & CQ_RES_RC_FLAGS_SRQ_SRQ) {
|
|
srq = qp->srq;
|
|
if (!srq)
|
|
return -EINVAL;
|
|
|
|
if (wr_id_idx > srq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process UD ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: wr_id idx 0x%x exceeded SRQ max 0x%x",
|
|
wr_id_idx, srq->hwq.max_elements);
|
|
return -EINVAL;
|
|
}
|
|
cqe->wr_id = srq->swq[wr_id_idx].wr_id;
|
|
bnxt_qplib_release_srqe(srq, wr_id_idx);
|
|
cqe++;
|
|
(*budget)--;
|
|
*pcqe = cqe;
|
|
} else {
|
|
rq = &qp->rq;
|
|
if (wr_id_idx > rq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process UD ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: wr_id idx 0x%x exceeded RQ max 0x%x",
|
|
wr_id_idx, rq->hwq.max_elements);
|
|
return -EINVAL;
|
|
}
|
|
|
|
cqe->wr_id = rq->swq[wr_id_idx].wr_id;
|
|
cqe++;
|
|
(*budget)--;
|
|
rq->hwq.cons++;
|
|
*pcqe = cqe;
|
|
|
|
if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
|
|
qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
|
|
/* Add qp to flush list of the CQ */
|
|
bnxt_qplib_add_flush_qp(qp);
|
|
}
|
|
}
|
|
done:
|
|
return rc;
|
|
}
|
|
|
|
bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq)
|
|
{
|
|
struct cq_base *hw_cqe, **hw_cqe_ptr;
|
|
u32 sw_cons, raw_cons;
|
|
bool rc = true;
|
|
|
|
raw_cons = cq->hwq.cons;
|
|
sw_cons = HWQ_CMP(raw_cons, &cq->hwq);
|
|
hw_cqe_ptr = (struct cq_base **)cq->hwq.pbl_ptr;
|
|
hw_cqe = &hw_cqe_ptr[CQE_PG(sw_cons)][CQE_IDX(sw_cons)];
|
|
|
|
/* Check for Valid bit. If the CQE is valid, return false */
|
|
rc = !CQE_CMP_VALID(hw_cqe, raw_cons, cq->hwq.max_elements);
|
|
return rc;
|
|
}
|
|
|
|
static int bnxt_qplib_cq_process_res_raweth_qp1(struct bnxt_qplib_cq *cq,
|
|
struct cq_res_raweth_qp1 *hwcqe,
|
|
struct bnxt_qplib_cqe **pcqe,
|
|
int *budget)
|
|
{
|
|
struct bnxt_qplib_qp *qp;
|
|
struct bnxt_qplib_q *rq;
|
|
struct bnxt_qplib_srq *srq;
|
|
struct bnxt_qplib_cqe *cqe;
|
|
u32 wr_id_idx;
|
|
int rc = 0;
|
|
|
|
qp = (struct bnxt_qplib_qp *)((unsigned long)
|
|
le64_to_cpu(hwcqe->qp_handle));
|
|
if (!qp) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: process_cq Raw/QP1 qp is NULL");
|
|
return -EINVAL;
|
|
}
|
|
if (qp->rq.flushed) {
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"%s: QPLIB: QP in Flush QP = %p\n", __func__, qp);
|
|
goto done;
|
|
}
|
|
cqe = *pcqe;
|
|
cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
|
|
cqe->flags = le16_to_cpu(hwcqe->flags);
|
|
cqe->qp_handle = (u64)(unsigned long)qp;
|
|
|
|
wr_id_idx =
|
|
le32_to_cpu(hwcqe->raweth_qp1_payload_offset_srq_or_rq_wr_id)
|
|
& CQ_RES_RAWETH_QP1_SRQ_OR_RQ_WR_ID_MASK;
|
|
cqe->src_qp = qp->id;
|
|
if (qp->id == 1 && !cqe->length) {
|
|
/* Add workaround for the length misdetection */
|
|
cqe->length = 296;
|
|
} else {
|
|
cqe->length = le16_to_cpu(hwcqe->length);
|
|
}
|
|
cqe->pkey_index = qp->pkey_index;
|
|
memcpy(cqe->smac, qp->smac, 6);
|
|
|
|
cqe->raweth_qp1_flags = le16_to_cpu(hwcqe->raweth_qp1_flags);
|
|
cqe->raweth_qp1_flags2 = le32_to_cpu(hwcqe->raweth_qp1_flags2);
|
|
cqe->raweth_qp1_metadata = le32_to_cpu(hwcqe->raweth_qp1_metadata);
|
|
|
|
if (cqe->flags & CQ_RES_RAWETH_QP1_FLAGS_SRQ_SRQ) {
|
|
srq = qp->srq;
|
|
if (!srq) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: SRQ used but not defined??");
|
|
return -EINVAL;
|
|
}
|
|
if (wr_id_idx > srq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process Raw/QP1 ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: wr_id idx 0x%x exceeded SRQ max 0x%x",
|
|
wr_id_idx, srq->hwq.max_elements);
|
|
return -EINVAL;
|
|
}
|
|
cqe->wr_id = srq->swq[wr_id_idx].wr_id;
|
|
bnxt_qplib_release_srqe(srq, wr_id_idx);
|
|
cqe++;
|
|
(*budget)--;
|
|
*pcqe = cqe;
|
|
} else {
|
|
rq = &qp->rq;
|
|
if (wr_id_idx > rq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process Raw/QP1 RQ wr_id ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: ix 0x%x exceeded RQ max 0x%x",
|
|
wr_id_idx, rq->hwq.max_elements);
|
|
return -EINVAL;
|
|
}
|
|
cqe->wr_id = rq->swq[wr_id_idx].wr_id;
|
|
cqe++;
|
|
(*budget)--;
|
|
rq->hwq.cons++;
|
|
*pcqe = cqe;
|
|
|
|
if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
|
|
qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
|
|
/* Add qp to flush list of the CQ */
|
|
bnxt_qplib_add_flush_qp(qp);
|
|
}
|
|
}
|
|
|
|
done:
|
|
return rc;
|
|
}
|
|
|
|
static int bnxt_qplib_cq_process_terminal(struct bnxt_qplib_cq *cq,
|
|
struct cq_terminal *hwcqe,
|
|
struct bnxt_qplib_cqe **pcqe,
|
|
int *budget)
|
|
{
|
|
struct bnxt_qplib_qp *qp;
|
|
struct bnxt_qplib_q *sq, *rq;
|
|
struct bnxt_qplib_cqe *cqe;
|
|
u32 sw_cons = 0, cqe_cons;
|
|
int rc = 0;
|
|
|
|
/* Check the Status */
|
|
if (hwcqe->status != CQ_TERMINAL_STATUS_OK)
|
|
dev_warn(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process Terminal Error status = 0x%x",
|
|
hwcqe->status);
|
|
|
|
qp = (struct bnxt_qplib_qp *)((unsigned long)
|
|
le64_to_cpu(hwcqe->qp_handle));
|
|
if (!qp) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process terminal qp is NULL");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Must block new posting of SQ and RQ */
|
|
qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
|
|
|
|
sq = &qp->sq;
|
|
rq = &qp->rq;
|
|
|
|
cqe_cons = le16_to_cpu(hwcqe->sq_cons_idx);
|
|
if (cqe_cons == 0xFFFF)
|
|
goto do_rq;
|
|
|
|
if (cqe_cons > sq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process terminal reported ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: sq_cons_idx 0x%x which exceeded max 0x%x",
|
|
cqe_cons, sq->hwq.max_elements);
|
|
goto do_rq;
|
|
}
|
|
|
|
if (qp->sq.flushed) {
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"%s: QPLIB: QP in Flush QP = %p\n", __func__, qp);
|
|
goto sq_done;
|
|
}
|
|
|
|
/* Terminal CQE can also include aggregated successful CQEs prior.
|
|
* So we must complete all CQEs from the current sq's cons to the
|
|
* cq_cons with status OK
|
|
*/
|
|
cqe = *pcqe;
|
|
while (*budget) {
|
|
sw_cons = HWQ_CMP(sq->hwq.cons, &sq->hwq);
|
|
if (sw_cons == cqe_cons)
|
|
break;
|
|
if (sq->swq[sw_cons].flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
|
|
memset(cqe, 0, sizeof(*cqe));
|
|
cqe->status = CQ_REQ_STATUS_OK;
|
|
cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
|
|
cqe->qp_handle = (u64)(unsigned long)qp;
|
|
cqe->src_qp = qp->id;
|
|
cqe->wr_id = sq->swq[sw_cons].wr_id;
|
|
cqe->type = sq->swq[sw_cons].type;
|
|
cqe++;
|
|
(*budget)--;
|
|
}
|
|
sq->hwq.cons++;
|
|
}
|
|
*pcqe = cqe;
|
|
if (!(*budget) && sw_cons != cqe_cons) {
|
|
/* Out of budget */
|
|
rc = -EAGAIN;
|
|
goto sq_done;
|
|
}
|
|
sq_done:
|
|
if (rc)
|
|
return rc;
|
|
do_rq:
|
|
cqe_cons = le16_to_cpu(hwcqe->rq_cons_idx);
|
|
if (cqe_cons == 0xFFFF) {
|
|
goto done;
|
|
} else if (cqe_cons > rq->hwq.max_elements) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Processed terminal ");
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: reported rq_cons_idx 0x%x exceeds max 0x%x",
|
|
cqe_cons, rq->hwq.max_elements);
|
|
goto done;
|
|
}
|
|
|
|
if (qp->rq.flushed) {
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"%s: QPLIB: QP in Flush QP = %p\n", __func__, qp);
|
|
rc = 0;
|
|
goto done;
|
|
}
|
|
|
|
/* Terminal CQE requires all posted RQEs to complete with FLUSHED_ERR
|
|
* from the current rq->cons to the rq->prod regardless what the
|
|
* rq->cons the terminal CQE indicates
|
|
*/
|
|
|
|
/* Add qp to flush list of the CQ */
|
|
bnxt_qplib_add_flush_qp(qp);
|
|
done:
|
|
return rc;
|
|
}
|
|
|
|
static int bnxt_qplib_cq_process_cutoff(struct bnxt_qplib_cq *cq,
|
|
struct cq_cutoff *hwcqe)
|
|
{
|
|
/* Check the Status */
|
|
if (hwcqe->status != CQ_CUTOFF_STATUS_OK) {
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: CQ Process Cutoff Error status = 0x%x",
|
|
hwcqe->status);
|
|
return -EINVAL;
|
|
}
|
|
clear_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags);
|
|
wake_up_interruptible(&cq->waitq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
|
|
struct bnxt_qplib_cqe *cqe,
|
|
int num_cqes)
|
|
{
|
|
struct bnxt_qplib_qp *qp = NULL;
|
|
u32 budget = num_cqes;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&cq->flush_lock, flags);
|
|
list_for_each_entry(qp, &cq->sqf_head, sq_flush) {
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: Flushing SQ QP= %p",
|
|
qp);
|
|
__flush_sq(&qp->sq, qp, &cqe, &budget);
|
|
}
|
|
|
|
list_for_each_entry(qp, &cq->rqf_head, rq_flush) {
|
|
dev_dbg(&cq->hwq.pdev->dev,
|
|
"QPLIB: FP: Flushing RQ QP= %p",
|
|
qp);
|
|
__flush_rq(&qp->rq, qp, &cqe, &budget);
|
|
}
|
|
spin_unlock_irqrestore(&cq->flush_lock, flags);
|
|
|
|
return num_cqes - budget;
|
|
}
|
|
|
|
int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
|
|
int num_cqes, struct bnxt_qplib_qp **lib_qp)
|
|
{
|
|
struct cq_base *hw_cqe, **hw_cqe_ptr;
|
|
u32 sw_cons, raw_cons;
|
|
int budget, rc = 0;
|
|
|
|
raw_cons = cq->hwq.cons;
|
|
budget = num_cqes;
|
|
|
|
while (budget) {
|
|
sw_cons = HWQ_CMP(raw_cons, &cq->hwq);
|
|
hw_cqe_ptr = (struct cq_base **)cq->hwq.pbl_ptr;
|
|
hw_cqe = &hw_cqe_ptr[CQE_PG(sw_cons)][CQE_IDX(sw_cons)];
|
|
|
|
/* Check for Valid bit */
|
|
if (!CQE_CMP_VALID(hw_cqe, raw_cons, cq->hwq.max_elements))
|
|
break;
|
|
|
|
/*
|
|
* The valid test of the entry must be done first before
|
|
* reading any further.
|
|
*/
|
|
dma_rmb();
|
|
/* From the device's respective CQE format to qplib_wc*/
|
|
switch (hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK) {
|
|
case CQ_BASE_CQE_TYPE_REQ:
|
|
rc = bnxt_qplib_cq_process_req(cq,
|
|
(struct cq_req *)hw_cqe,
|
|
&cqe, &budget,
|
|
sw_cons, lib_qp);
|
|
break;
|
|
case CQ_BASE_CQE_TYPE_RES_RC:
|
|
rc = bnxt_qplib_cq_process_res_rc(cq,
|
|
(struct cq_res_rc *)
|
|
hw_cqe, &cqe,
|
|
&budget);
|
|
break;
|
|
case CQ_BASE_CQE_TYPE_RES_UD:
|
|
rc = bnxt_qplib_cq_process_res_ud
|
|
(cq, (struct cq_res_ud *)hw_cqe, &cqe,
|
|
&budget);
|
|
break;
|
|
case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
|
|
rc = bnxt_qplib_cq_process_res_raweth_qp1
|
|
(cq, (struct cq_res_raweth_qp1 *)
|
|
hw_cqe, &cqe, &budget);
|
|
break;
|
|
case CQ_BASE_CQE_TYPE_TERMINAL:
|
|
rc = bnxt_qplib_cq_process_terminal
|
|
(cq, (struct cq_terminal *)hw_cqe,
|
|
&cqe, &budget);
|
|
break;
|
|
case CQ_BASE_CQE_TYPE_CUT_OFF:
|
|
bnxt_qplib_cq_process_cutoff
|
|
(cq, (struct cq_cutoff *)hw_cqe);
|
|
/* Done processing this CQ */
|
|
goto exit;
|
|
default:
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: process_cq unknown type 0x%lx",
|
|
hw_cqe->cqe_type_toggle &
|
|
CQ_BASE_CQE_TYPE_MASK);
|
|
rc = -EINVAL;
|
|
break;
|
|
}
|
|
if (rc < 0) {
|
|
if (rc == -EAGAIN)
|
|
break;
|
|
/* Error while processing the CQE, just skip to the
|
|
* next one
|
|
*/
|
|
dev_err(&cq->hwq.pdev->dev,
|
|
"QPLIB: process_cqe error rc = 0x%x", rc);
|
|
}
|
|
raw_cons++;
|
|
}
|
|
if (cq->hwq.cons != raw_cons) {
|
|
cq->hwq.cons = raw_cons;
|
|
bnxt_qplib_arm_cq(cq, DBR_DBR_TYPE_CQ);
|
|
}
|
|
exit:
|
|
return num_cqes - budget;
|
|
}
|
|
|
|
void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
|
|
{
|
|
if (arm_type)
|
|
bnxt_qplib_arm_cq(cq, arm_type);
|
|
/* Using cq->arm_state variable to track whether to issue cq handler */
|
|
atomic_set(&cq->arm_state, 1);
|
|
}
|
|
|
|
void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp)
|
|
{
|
|
flush_workqueue(qp->scq->nq->cqn_wq);
|
|
if (qp->scq != qp->rcq)
|
|
flush_workqueue(qp->rcq->nq->cqn_wq);
|
|
}
|