#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/if_ether.h>
#include <linux/hardirq.h>
#include <rdma/ib_mad.h>
#include "hsi_struct_def.h"
#include "qplib_tlv.h"
#include "qplib_res.h"
#include "qplib_rcfw.h"
#include "qplib_sp.h"
#include "qplib_fp.h"
#include "ib_verbs.h"
static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp);
static void bnxt_re_legacy_cancel_phantom_processing(struct bnxt_qplib_qp *qp)
{
qp->sq.condition = false;
qp->sq.legacy_send_phantom = false;
qp->sq.single = false;
}
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\n",
qp);
bnxt_re_legacy_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\n",
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)
__acquires(&qp->scq->flush_lock) __acquires(&qp->rcq->flush_lock)
{
spin_lock(&qp->scq->flush_lock);
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)
__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(&qp->scq->flush_lock);
}
void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp)
{
bnxt_qplib_acquire_cq_flush_locks(qp);
__bnxt_qplib_add_flush_qp(qp);
bnxt_qplib_release_cq_flush_locks(qp);
}
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)
{
bnxt_qplib_acquire_cq_flush_locks(qp);
__clean_cq(qp->scq, (u64)(unsigned long)qp);
qp->sq.hwq.prod = 0;
qp->sq.hwq.cons = 0;
qp->sq.swq_start = 0;
qp->sq.swq_last = 0;
__clean_cq(qp->rcq, (u64)(unsigned long)qp);
qp->rq.hwq.prod = 0;
qp->rq.hwq.cons = 0;
qp->rq.swq_start = 0;
qp->rq.swq_last = 0;
__bnxt_qplib_del_flush_qp(qp);
bnxt_qplib_release_cq_flush_locks(qp);
}
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 (nq->cqn_handler) {
dev_dbg(&nq->res->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_put_hdr_buf(struct pci_dev *pdev,
struct bnxt_qplib_hdrbuf *buf)
{
dma_free_coherent(&pdev->dev, buf->len, buf->va, buf->dma_map);
kfree(buf);
}
static void *bnxt_qplib_get_hdr_buf(struct pci_dev *pdev, u32 step, u32 cnt)
{
struct bnxt_qplib_hdrbuf *hdrbuf;
u32 len;
hdrbuf = kmalloc(sizeof(*hdrbuf), GFP_KERNEL);
if (!hdrbuf)
return NULL;
len = ALIGN((step * cnt), PAGE_SIZE);
hdrbuf->va = dma_alloc_coherent(&pdev->dev, len,
&hdrbuf->dma_map, GFP_KERNEL);
if (!hdrbuf->va)
goto out;
hdrbuf->len = len;
hdrbuf->step = step;
return hdrbuf;
out:
kfree(hdrbuf);
return NULL;
}
void bnxt_qplib_free_hdr_buf(struct bnxt_qplib_res *res,
struct bnxt_qplib_qp *qp)
{
if (qp->rq_hdr_buf) {
bnxt_qplib_put_hdr_buf(res->pdev, qp->rq_hdr_buf);
qp->rq_hdr_buf = NULL;
}
if (qp->sq_hdr_buf) {
bnxt_qplib_put_hdr_buf(res->pdev, qp->sq_hdr_buf);
qp->sq_hdr_buf = NULL;
}
}
int bnxt_qplib_alloc_hdr_buf(struct bnxt_qplib_res *res,
struct bnxt_qplib_qp *qp, u32 sstep, u32 rstep)
{
struct pci_dev *pdev;
int rc = 0;
pdev = res->pdev;
if (sstep) {
qp->sq_hdr_buf = bnxt_qplib_get_hdr_buf(pdev, sstep,
qp->sq.max_wqe);
if (!qp->sq_hdr_buf) {
dev_err(&pdev->dev, "QPLIB: Failed to get sq_hdr_buf\n");
return -ENOMEM;
}
}
if (rstep) {
qp->rq_hdr_buf = bnxt_qplib_get_hdr_buf(pdev, rstep,
qp->rq.max_wqe);
if (!qp->rq_hdr_buf) {
rc = -ENOMEM;
dev_err(&pdev->dev, "QPLIB: Failed to get rq_hdr_buf\n");
goto fail;
}
}
return 0;
fail:
bnxt_qplib_free_hdr_buf(res, qp);
return rc;
}
static void clean_nq(struct bnxt_qplib_cq *cq)
{
struct bnxt_qplib_hwq *nq_hwq = NULL;
struct bnxt_qplib_nq *nq = NULL;
struct nq_base *hw_nqe = NULL;
struct nq_cn *nqcne = NULL;
u32 peek_flags, peek_cons;
u64 q_handle;
u32 type;
int i;
nq = cq->nq;
nq_hwq = &nq->hwq;
spin_lock_bh(&nq_hwq->lock);
peek_flags = nq->nq_db.dbinfo.flags;
peek_cons = nq_hwq->cons;
for (i = 0; i < nq_hwq->max_elements; i++) {
hw_nqe = bnxt_qplib_get_qe(nq_hwq, peek_cons, NULL);
if (!NQE_CMP_VALID(hw_nqe, peek_flags))
break;
dma_rmb();
type = le16_to_cpu(hw_nqe->info10_type) &
NQ_BASE_TYPE_MASK;
if (type == NQ_BASE_TYPE_CQ_NOTIFICATION) {
nqcne = (struct nq_cn *)hw_nqe;
q_handle = le32_to_cpu(nqcne->cq_handle_low);
q_handle |= (u64)le32_to_cpu(nqcne->cq_handle_high) << 32;
if (q_handle == (u64)cq) {
nqcne->cq_handle_low = 0;
nqcne->cq_handle_high = 0;
cq->cnq_events++;
}
}
bnxt_qplib_hwq_incr_cons(nq_hwq->max_elements, &peek_cons,
1, &peek_flags);
}
spin_unlock_bh(&nq_hwq->lock);
}
static void __wait_for_all_nqes(struct bnxt_qplib_cq *cq, u16 cnq_events)
{
u32 retry_cnt = 100;
u16 total_events;
if (!cnq_events) {
clean_nq(cq);
return;
}
while (retry_cnt--) {
total_events = cq->cnq_events;
if (cq->is_cq_err_event)
total_events++;
if (cnq_events == total_events) {
dev_dbg(&cq->nq->res->pdev->dev,
"QPLIB: NQ cleanup - Received all NQ events\n");
return;
}
msleep(1);
clean_nq(cq);
}
}
static void bnxt_qplib_service_nq(unsigned long data)
{
struct bnxt_qplib_nq *nq = (struct bnxt_qplib_nq *)data;
struct bnxt_qplib_hwq *nq_hwq = &nq->hwq;
int budget = nq->budget;
struct bnxt_qplib_res *res;
struct bnxt_qplib_cq *cq;
struct pci_dev *pdev;
struct nq_base *nqe;
u32 hw_polled = 0;
u64 q_handle;
u32 type;
res = nq->res;
pdev = res->pdev;
spin_lock_bh(&nq_hwq->lock);
while (budget--) {
nqe = bnxt_qplib_get_qe(nq_hwq, nq_hwq->cons, NULL);
if (!NQE_CMP_VALID(nqe, nq->nq_db.dbinfo.flags))
break;
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 *)q_handle;
if (!cq)
break;
cq->toggle = (le16_to_cpu(nqe->info10_type) & NQ_CN_TOGGLE_MASK) >> NQ_CN_TOGGLE_SFT;
cq->dbinfo.toggle = cq->toggle;
bnxt_qplib_armen_db(&cq->dbinfo,
DBC_DBC_TYPE_CQ_ARMENA);
spin_lock_bh(&cq->compl_lock);
atomic_set(&cq->arm_state, 0) ;
if (!nq->cqn_handler(nq, (cq)))
nq->stats.num_cqne_processed++;
else
dev_warn(&pdev->dev,
"QPLIB: cqn - type 0x%x not handled\n",
type);
cq->cnq_events++;
spin_unlock_bh(&cq->compl_lock);
break;
}
case NQ_BASE_TYPE_SRQ_EVENT:
{
struct bnxt_qplib_srq *srq;
struct nq_srq_event *nqsrqe =
(struct nq_srq_event *)nqe;
u8 toggle;
q_handle = le32_to_cpu(nqsrqe->srq_handle_low);
q_handle |= (u64)le32_to_cpu(nqsrqe->srq_handle_high) << 32;
srq = (struct bnxt_qplib_srq *)q_handle;
toggle = (le16_to_cpu(nqe->info10_type) & NQ_CN_TOGGLE_MASK)
>> NQ_CN_TOGGLE_SFT;
srq->dbinfo.toggle = toggle;
bnxt_qplib_armen_db(&srq->dbinfo,
DBC_DBC_TYPE_SRQ_ARMENA);
if (!nq->srqn_handler(nq,
(struct bnxt_qplib_srq *)q_handle,
nqsrqe->event))
nq->stats.num_srqne_processed++;
else
dev_warn(&pdev->dev,
"QPLIB: SRQ event 0x%x not handled\n",
nqsrqe->event);
break;
}
default:
dev_warn(&pdev->dev,
"QPLIB: nqe with opcode = 0x%x not handled\n",
type);
break;
}
hw_polled++;
bnxt_qplib_hwq_incr_cons(nq_hwq->max_elements, &nq_hwq->cons,
1, &nq->nq_db.dbinfo.flags);
}
nqe = bnxt_qplib_get_qe(nq_hwq, nq_hwq->cons, NULL);
if (!NQE_CMP_VALID(nqe, nq->nq_db.dbinfo.flags)) {
nq->stats.num_nq_rearm++;
bnxt_qplib_ring_nq_db(&nq->nq_db.dbinfo, res->cctx, true);
} else if (nq->requested) {
bnxt_qplib_ring_nq_db(&nq->nq_db.dbinfo, res->cctx, true);
nq->stats.num_tasklet_resched++;
}
dev_dbg(&pdev->dev, "QPLIB: cqn/srqn/dbqn \n");
if (hw_polled >= 0)
dev_dbg(&pdev->dev,
"QPLIB: serviced %llu/%llu/%llu budget 0x%x reaped 0x%x\n",
nq->stats.num_cqne_processed, nq->stats.num_srqne_processed,
nq->stats.num_dbqne_processed, budget, hw_polled);
dev_dbg(&pdev->dev,
"QPLIB: resched_cnt = %llu arm_count = %llu\n",
nq->stats.num_tasklet_resched, nq->stats.num_nq_rearm);
spin_unlock_bh(&nq_hwq->lock);
}
static irqreturn_t bnxt_qplib_nq_irq(int irq, void *dev_instance)
{
struct bnxt_qplib_nq *nq = dev_instance;
struct bnxt_qplib_hwq *nq_hwq = &nq->hwq;
u32 sw_cons;
sw_cons = HWQ_CMP(nq_hwq->cons, nq_hwq);
if (sw_cons >= 0)
prefetch(bnxt_qplib_get_qe(nq_hwq, sw_cons, NULL));
bnxt_qplib_service_nq((unsigned long)nq);
return IRQ_HANDLED;
}
void bnxt_qplib_nq_stop_irq(struct bnxt_qplib_nq *nq, bool kill)
{
struct bnxt_qplib_res *res;
if (!nq->requested)
return;
nq->requested = false;
res = nq->res;
bnxt_qplib_ring_nq_db(&nq->nq_db.dbinfo, res->cctx, false);
synchronize_irq(nq->msix_vec);
free_irq(nq->msix_vec, nq);
kfree(nq->name);
nq->name = NULL;
}
void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq)
{
if (nq->cqn_wq) {
destroy_workqueue(nq->cqn_wq);
nq->cqn_wq = NULL;
}
bnxt_qplib_nq_stop_irq(nq, true);
nq->nq_db.reg.bar_reg = NULL;
nq->nq_db.db = NULL;
nq->cqn_handler = NULL;
nq->srqn_handler = NULL;
nq->msix_vec = 0;
}
int bnxt_qplib_nq_start_irq(struct bnxt_qplib_nq *nq, int nq_indx,
int msix_vector, bool need_init)
{
struct bnxt_qplib_res *res;
int rc;
res = nq->res;
if (nq->requested)
return -EFAULT;
nq->msix_vec = msix_vector;
nq->name = kasprintf(GFP_KERNEL, "bnxt_re-nq-%d@pci:%s\n",
nq_indx, pci_name(res->pdev));
if (!nq->name)
return -ENOMEM;
rc = request_irq(nq->msix_vec, bnxt_qplib_nq_irq, 0, nq->name, nq);
if (rc) {
kfree(nq->name);
nq->name = NULL;
return rc;
}
nq->requested = true;
bnxt_qplib_ring_nq_db(&nq->nq_db.dbinfo, res->cctx, true);
return rc;
}
static void bnxt_qplib_map_nq_db(struct bnxt_qplib_nq *nq, u32 reg_offt)
{
struct bnxt_qplib_reg_desc *dbreg;
struct bnxt_qplib_nq_db *nq_db;
struct bnxt_qplib_res *res;
nq_db = &nq->nq_db;
res = nq->res;
dbreg = &res->dpi_tbl.ucreg;
nq_db->reg.bar_id = dbreg->bar_id;
nq_db->reg.bar_base = dbreg->bar_base;
nq_db->reg.bar_reg = dbreg->bar_reg + reg_offt;
nq_db->reg.len = _is_chip_gen_p5_p7(res->cctx) ? sizeof(u64) :
sizeof(u32);
nq_db->dbinfo.db = nq_db->reg.bar_reg;
nq_db->dbinfo.hwq = &nq->hwq;
nq_db->dbinfo.xid = nq->ring_id;
nq_db->dbinfo.seed = nq->ring_id;
nq_db->dbinfo.flags = 0;
spin_lock_init(&nq_db->dbinfo.lock);
nq_db->dbinfo.shadow_key = BNXT_QPLIB_DBR_KEY_INVALID;
nq_db->dbinfo.res = nq->res;
return;
}
int bnxt_qplib_enable_nq(struct bnxt_qplib_nq *nq, int nq_idx,
int msix_vector, int bar_reg_offset,
cqn_handler_t cqn_handler,
srqn_handler_t srqn_handler)
{
struct pci_dev *pdev;
int rc;
pdev = nq->res->pdev;
nq->cqn_handler = cqn_handler;
nq->srqn_handler = srqn_handler;
nq->load = 0;
mutex_init(&nq->lock);
nq->cqn_wq = create_singlethread_workqueue("bnxt_qplib_nq\n");
if (!nq->cqn_wq)
return -ENOMEM;
bnxt_qplib_map_nq_db(nq, bar_reg_offset);
rc = bnxt_qplib_nq_start_irq(nq, nq_idx, msix_vector, true);
if (rc) {
dev_err(&pdev->dev,
"QPLIB: Failed to request irq for nq-idx %d\n", nq_idx);
goto fail;
}
dev_dbg(&pdev->dev, "QPLIB: NQ max = 0x%x\n", nq->hwq.max_elements);
return 0;
fail:
bnxt_qplib_disable_nq(nq);
return rc;
}
void bnxt_qplib_free_nq_mem(struct bnxt_qplib_nq *nq)
{
if (nq->hwq.max_elements) {
bnxt_qplib_free_hwq(nq->res, &nq->hwq);
nq->hwq.max_elements = 0;
}
}
int bnxt_qplib_alloc_nq_mem(struct bnxt_qplib_res *res,
struct bnxt_qplib_nq *nq)
{
struct bnxt_qplib_hwq_attr hwq_attr = {};
struct bnxt_qplib_sg_info sginfo = {};
nq->res = res;
if (!nq->hwq.max_elements ||
nq->hwq.max_elements > BNXT_QPLIB_NQE_MAX_CNT)
nq->hwq.max_elements = BNXT_QPLIB_NQE_MAX_CNT;
sginfo.pgsize = PAGE_SIZE;
sginfo.pgshft = PAGE_SHIFT;
hwq_attr.res = res;
hwq_attr.sginfo = &sginfo;
hwq_attr.depth = nq->hwq.max_elements;
hwq_attr.stride = sizeof(struct nq_base);
hwq_attr.type = _get_hwq_type(res);
if (bnxt_qplib_alloc_init_hwq(&nq->hwq, &hwq_attr)) {
dev_err(&res->pdev->dev, "QPLIB: FP NQ allocation failed\n");
return -ENOMEM;
}
nq->budget = 8;
return 0;
}
static int __qplib_destroy_srq(struct bnxt_qplib_rcfw *rcfw,
struct bnxt_qplib_srq *srq)
{
struct creq_destroy_srq_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct cmdq_destroy_srq req = {};
req.srq_cid = cpu_to_le32(srq->id);
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_DESTROY_SRQ,
sizeof(req));
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
return bnxt_qplib_rcfw_send_message(rcfw, &msg);
}
int bnxt_qplib_destroy_srq(struct bnxt_qplib_res *res,
struct bnxt_qplib_srq *srq)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
int rc;
rc = __qplib_destroy_srq(rcfw, srq);
if (rc)
return rc;
bnxt_qplib_free_hwq(res, &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_hwq_attr hwq_attr = {};
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct creq_create_srq_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct cmdq_create_srq req = {};
u16 pg_sz_lvl = 0;
u16 srq_size;
int rc, idx;
hwq_attr.res = res;
hwq_attr.sginfo = &srq->sginfo;
hwq_attr.depth = srq->max_wqe;
hwq_attr.stride = srq->wqe_size;
hwq_attr.type = HWQ_TYPE_QUEUE;
rc = bnxt_qplib_alloc_init_hwq(&srq->hwq, &hwq_attr);
if (rc)
goto exit;
req.dpi = cpu_to_le32(srq->dpi->dpi);
req.srq_handle = cpu_to_le64((uintptr_t)srq);
srq_size = min_t(u32, srq->hwq.depth, U16_MAX);
req.srq_size = cpu_to_le16(srq_size);
pg_sz_lvl |= (_get_base_pg_size(&srq->hwq) <<
CMDQ_CREATE_SRQ_PG_SIZE_SFT);
pg_sz_lvl |= (srq->hwq.level & CMDQ_CREATE_SRQ_LVL_MASK);
req.pg_size_lvl = cpu_to_le16(pg_sz_lvl);
req.pbl = cpu_to_le64(_get_base_addr(&srq->hwq));
req.pd_id = cpu_to_le32(srq->pd->id);
req.eventq_id = cpu_to_le16(srq->eventq_hw_ring_id);
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_CREATE_SRQ,
sizeof(req));
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
if (rc)
goto fail;
if (!srq->is_user) {
srq->swq = kcalloc(srq->hwq.depth, sizeof(*srq->swq),
GFP_KERNEL);
if (!srq->swq)
goto srq_fail;
srq->start_idx = 0;
srq->last_idx = srq->hwq.depth - 1;
for (idx = 0; idx < srq->hwq.depth; idx++)
srq->swq[idx].next_idx = idx + 1;
srq->swq[srq->last_idx].next_idx = -1;
}
spin_lock_init(&srq->lock);
srq->id = le32_to_cpu(resp.xid);
srq->cctx = res->cctx;
srq->dbinfo.hwq = &srq->hwq;
srq->dbinfo.xid = srq->id;
srq->dbinfo.db = srq->dpi->dbr;
srq->dbinfo.max_slot = 1;
srq->dbinfo.priv_db = res->dpi_tbl.priv_db;
srq->dbinfo.flags = 0;
spin_lock_init(&srq->dbinfo.lock);
srq->dbinfo.shadow_key = BNXT_QPLIB_DBR_KEY_INVALID;
srq->dbinfo.shadow_key_arm_ena = BNXT_QPLIB_DBR_KEY_INVALID;
srq->dbinfo.res = res;
srq->dbinfo.seed = srq->id;
if (srq->threshold)
bnxt_qplib_armen_db(&srq->dbinfo, DBC_DBC_TYPE_SRQ_ARMENA);
srq->arm_req = false;
return 0;
srq_fail:
__qplib_destroy_srq(rcfw, srq);
fail:
bnxt_qplib_free_hwq(res, &srq->hwq);
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 avail = 0;
avail = __bnxt_qplib_get_avail(srq_hwq);
if (avail <= srq->threshold) {
srq->arm_req = false;
bnxt_qplib_srq_arm_db(&srq->dbinfo);
} else {
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 creq_query_srq_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct creq_query_srq_resp_sb *sb;
struct bnxt_qplib_rcfw_sbuf sbuf;
struct cmdq_query_srq req = {};
int rc = 0;
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_QUERY_SRQ,
sizeof(req));
sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS);
sbuf.sb = dma_zalloc_coherent(&rcfw->pdev->dev, sbuf.size,
&sbuf.dma_addr, GFP_KERNEL);
if (!sbuf.sb)
return -ENOMEM;
req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS;
req.srq_cid = cpu_to_le32(srq->id);
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req),
sizeof(resp), 0);
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
dma_free_coherent(&rcfw->pdev->dev, sbuf.size,
sbuf.sb, sbuf.dma_addr);
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 sq_sge *hw_sge;
struct rq_wqe *srqe;
int i, rc = 0, next;
u32 avail;
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!\n",
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);
srqe = bnxt_qplib_get_qe(srq_hwq, srq_hwq->prod, NULL);
memset(srqe, 0, srq->wqe_size);
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);
if (!wqe->num_sge)
srqe->wqe_size++;
srqe->wr_id |= cpu_to_le32((u32)next);
srq->swq[next].wr_id = wqe->wr_id;
bnxt_qplib_hwq_incr_prod(&srq->dbinfo, srq_hwq, srq->dbinfo.max_slot);
spin_lock(&srq_hwq->lock);
avail = __bnxt_qplib_get_avail(srq_hwq);
spin_unlock(&srq_hwq->lock);
bnxt_qplib_ring_prod_db(&srq->dbinfo, DBC_DBC_TYPE_SRQ);
if (srq->arm_req && avail <= srq->threshold) {
srq->arm_req = false;
bnxt_qplib_srq_arm_db(&srq->dbinfo);
}
done:
return rc;
}
static int __qplib_destroy_qp(struct bnxt_qplib_rcfw *rcfw,
struct bnxt_qplib_qp *qp)
{
struct creq_destroy_qp_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct cmdq_destroy_qp req = {};
req.qp_cid = cpu_to_le32(qp->id);
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_DESTROY_QP,
sizeof(req));
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
return bnxt_qplib_rcfw_send_message(rcfw, &msg);
}
static int bnxt_qplib_alloc_init_swq(struct bnxt_qplib_q *que)
{
int rc = 0;
int indx;
que->swq = kcalloc(que->max_sw_wqe, sizeof(*que->swq), GFP_KERNEL);
if (!que->swq) {
rc = -ENOMEM;
goto out;
}
que->swq_start = 0;
que->swq_last = que->max_sw_wqe - 1;
for (indx = 0; indx < que->max_sw_wqe; indx++)
que->swq[indx].next_idx = indx + 1;
que->swq[que->swq_last].next_idx = 0;
que->swq_last = 0;
out:
return rc;
}
static struct bnxt_qplib_swq *bnxt_qplib_get_swqe(struct bnxt_qplib_q *que,
u32 *swq_idx)
{
u32 idx;
idx = que->swq_start;
if (swq_idx)
*swq_idx = idx;
return &que->swq[idx];
}
static void bnxt_qplib_swq_mod_start(struct bnxt_qplib_q *que, u32 idx)
{
que->swq_start = que->swq[idx].next_idx;
}
static u32 bnxt_qplib_get_stride(void)
{
return sizeof(struct sq_sge);
}
u32 bnxt_qplib_get_depth(struct bnxt_qplib_q *que, u8 wqe_mode, bool is_sq)
{
u32 slots;
slots = (que->wqe_size * que->max_wqe) / sizeof(struct sq_sge);
if (wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE && is_sq)
slots = ALIGN(slots, BNXT_VAR_MAX_SLOT_ALIGN);
return slots;
}
static u32 _set_sq_size(struct bnxt_qplib_q *que, u8 wqe_mode)
{
return (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
que->max_wqe : bnxt_qplib_get_depth(que, wqe_mode, true);
}
static u32 _set_sq_max_slot(u8 wqe_mode)
{
return (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
sizeof(struct sq_send) / sizeof(struct sq_sge) : 1;
}
static u32 _set_rq_max_slot(struct bnxt_qplib_q *que)
{
return (que->wqe_size / sizeof(struct sq_sge));
}
int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
{
struct bnxt_qplib_hwq_attr hwq_attr = {};
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct creq_create_qp1_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct bnxt_qplib_q *sq = &qp->sq;
struct bnxt_qplib_q *rq = &qp->rq;
struct cmdq_create_qp1 req = {};
struct bnxt_qplib_reftbl *tbl;
unsigned long flag;
u8 pg_sz_lvl = 0;
u32 qp_flags = 0;
int rc;
req.type = qp->type;
req.dpi = cpu_to_le32(qp->dpi->dpi);
req.qp_handle = cpu_to_le64(qp->qp_handle);
hwq_attr.res = res;
hwq_attr.sginfo = &sq->sginfo;
hwq_attr.stride = bnxt_qplib_get_stride();
hwq_attr.depth = bnxt_qplib_get_depth(sq, qp->wqe_mode, false);
hwq_attr.type = HWQ_TYPE_QUEUE;
rc = bnxt_qplib_alloc_init_hwq(&sq->hwq, &hwq_attr);
if (rc)
goto exit;
req.sq_size = cpu_to_le32(_set_sq_size(sq, qp->wqe_mode));
req.sq_pbl = cpu_to_le64(_get_base_addr(&sq->hwq));
pg_sz_lvl = _get_base_pg_size(&sq->hwq) <<
CMDQ_CREATE_QP1_SQ_PG_SIZE_SFT;
pg_sz_lvl |= ((sq->hwq.level & CMDQ_CREATE_QP1_SQ_LVL_MASK) <<
CMDQ_CREATE_QP1_SQ_LVL_SFT);
req.sq_pg_size_sq_lvl = pg_sz_lvl;
req.sq_fwo_sq_sge = cpu_to_le16(((0 << CMDQ_CREATE_QP1_SQ_FWO_SFT) &
CMDQ_CREATE_QP1_SQ_FWO_MASK) |
(sq->max_sge &
CMDQ_CREATE_QP1_SQ_SGE_MASK));
req.scq_cid = cpu_to_le32(qp->scq->id);
if (!qp->srq) {
hwq_attr.res = res;
hwq_attr.sginfo = &rq->sginfo;
hwq_attr.stride = bnxt_qplib_get_stride();
hwq_attr.depth = bnxt_qplib_get_depth(rq, qp->wqe_mode, false);
hwq_attr.type = HWQ_TYPE_QUEUE;
rc = bnxt_qplib_alloc_init_hwq(&rq->hwq, &hwq_attr);
if (rc)
goto fail_sq;
req.rq_size = cpu_to_le32(rq->max_wqe);
req.rq_pbl = cpu_to_le64(_get_base_addr(&rq->hwq));
pg_sz_lvl = _get_base_pg_size(&rq->hwq) <<
CMDQ_CREATE_QP1_RQ_PG_SIZE_SFT;
pg_sz_lvl |= ((rq->hwq.level & CMDQ_CREATE_QP1_RQ_LVL_MASK) <<
CMDQ_CREATE_QP1_RQ_LVL_SFT);
req.rq_pg_size_rq_lvl = pg_sz_lvl;
req.rq_fwo_rq_sge =
cpu_to_le16(((0 << CMDQ_CREATE_QP1_RQ_FWO_SFT) &
CMDQ_CREATE_QP1_RQ_FWO_MASK) |
(rq->max_sge &
CMDQ_CREATE_QP1_RQ_SGE_MASK));
} else {
qp_flags |= CMDQ_CREATE_QP1_QP_FLAGS_SRQ_USED;
req.srq_cid = cpu_to_le32(qp->srq->id);
}
req.rcq_cid = cpu_to_le32(qp->rcq->id);
qp_flags |= CMDQ_CREATE_QP1_QP_FLAGS_RESERVED_LKEY_ENABLE;
req.qp_flags = cpu_to_le32(qp_flags);
req.pd_id = cpu_to_le32(qp->pd->id);
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_CREATE_QP1,
sizeof(req));
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
if (rc)
goto fail_rq;
rc = bnxt_qplib_alloc_init_swq(sq);
if (rc)
goto sq_swq;
if (!qp->srq) {
rc = bnxt_qplib_alloc_init_swq(rq);
if (rc)
goto rq_swq;
}
qp->id = le32_to_cpu(resp.xid);
qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
qp->cctx = res->cctx;
sq->dbinfo.hwq = &sq->hwq;
sq->dbinfo.xid = qp->id;
sq->dbinfo.db = qp->dpi->dbr;
sq->dbinfo.max_slot = _set_sq_max_slot(qp->wqe_mode);
sq->dbinfo.flags = 0;
spin_lock_init(&sq->dbinfo.lock);
sq->dbinfo.shadow_key = BNXT_QPLIB_DBR_KEY_INVALID;
sq->dbinfo.res = res;
if (rq->max_wqe) {
rq->dbinfo.hwq = &rq->hwq;
rq->dbinfo.xid = qp->id;
rq->dbinfo.db = qp->dpi->dbr;
rq->dbinfo.max_slot = _set_rq_max_slot(rq);
rq->dbinfo.flags = 0;
spin_lock_init(&rq->dbinfo.lock);
rq->dbinfo.shadow_key = BNXT_QPLIB_DBR_KEY_INVALID;
rq->dbinfo.res = res;
}
tbl = &res->reftbl.qpref;
spin_lock_irqsave(&tbl->lock, flag);
tbl->rec[tbl->max].xid = qp->id;
tbl->rec[tbl->max].handle = qp;
spin_unlock_irqrestore(&tbl->lock, flag);
return 0;
rq_swq:
kfree(sq->swq);
sq_swq:
__qplib_destroy_qp(rcfw, qp);
fail_rq:
bnxt_qplib_free_hwq(res, &rq->hwq);
fail_sq:
bnxt_qplib_free_hwq(res, &sq->hwq);
exit:
return rc;
}
static void bnxt_qplib_init_psn_ptr(struct bnxt_qplib_qp *qp, int size)
{
struct bnxt_qplib_hwq *sq_hwq;
struct bnxt_qplib_q *sq;
u64 fpsne, psn_pg;
u16 indx_pad = 0;
sq = &qp->sq;
sq_hwq = &sq->hwq;
fpsne = (u64)bnxt_qplib_get_qe(sq_hwq, sq_hwq->depth, &psn_pg);
if (!IS_ALIGNED(fpsne, PAGE_SIZE))
indx_pad = (fpsne & ~PAGE_MASK) / size;
sq_hwq->pad_pgofft = indx_pad;
sq_hwq->pad_pg = (u64 *)psn_pg;
sq_hwq->pad_stride = size;
}
int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
{
struct bnxt_qplib_hwq_attr hwq_attr = {};
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct bnxt_qplib_sg_info sginfo = {};
struct creq_create_qp_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct bnxt_qplib_q *sq = &qp->sq;
struct bnxt_qplib_q *rq = &qp->rq;
struct cmdq_create_qp req = {};
struct bnxt_qplib_reftbl *tbl;
struct bnxt_qplib_hwq *xrrq;
int rc, req_size, psn_sz;
unsigned long flag;
u8 pg_sz_lvl = 0;
u32 qp_flags = 0;
u32 qp_idx;
u16 nsge;
u32 sqsz;
qp->cctx = res->cctx;
if (res->dattr) {
qp->dev_cap_flags = res->dattr->dev_cap_flags;
qp->is_host_msn_tbl = _is_host_msn_table(res->dattr->dev_cap_ext_flags2);
}
req.type = qp->type;
req.dpi = cpu_to_le32(qp->dpi->dpi);
req.qp_handle = cpu_to_le64(qp->qp_handle);
if (qp->type == CMDQ_CREATE_QP_TYPE_RC) {
psn_sz = _is_chip_gen_p5_p7(qp->cctx) ?
sizeof(struct sq_psn_search_ext) :
sizeof(struct sq_psn_search);
if (qp->is_host_msn_tbl) {
psn_sz = sizeof(struct sq_msn_search);
qp->msn = 0;
}
} else {
psn_sz = 0;
}
hwq_attr.res = res;
hwq_attr.sginfo = &sq->sginfo;
hwq_attr.stride = bnxt_qplib_get_stride();
hwq_attr.depth = bnxt_qplib_get_depth(sq, qp->wqe_mode, true);
hwq_attr.aux_stride = psn_sz;
hwq_attr.aux_depth = (psn_sz) ?
_set_sq_size(sq, qp->wqe_mode) : 0;
if (qp->is_host_msn_tbl && psn_sz) {
if (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC)
hwq_attr.aux_depth = roundup_pow_of_two(_set_sq_size(sq, qp->wqe_mode));
else
hwq_attr.aux_depth = roundup_pow_of_two(_set_sq_size(sq, qp->wqe_mode)) / 2;
qp->msn_tbl_sz = hwq_attr.aux_depth;
qp->msn = 0;
}
hwq_attr.type = HWQ_TYPE_QUEUE;
rc = bnxt_qplib_alloc_init_hwq(&sq->hwq, &hwq_attr);
if (rc)
goto exit;
sqsz = _set_sq_size(sq, qp->wqe_mode);
if (sqsz > BNXT_QPLIB_MAX_SQSZ) {
pr_err("QPLIB: FP: QP (0x%x) exceeds sq size %d\n", qp->id, sqsz);
goto fail_sq;
}
req.sq_size = cpu_to_le32(sqsz);
req.sq_pbl = cpu_to_le64(_get_base_addr(&sq->hwq));
pg_sz_lvl = _get_base_pg_size(&sq->hwq) <<
CMDQ_CREATE_QP_SQ_PG_SIZE_SFT;
pg_sz_lvl |= ((sq->hwq.level & CMDQ_CREATE_QP_SQ_LVL_MASK) <<
CMDQ_CREATE_QP_SQ_LVL_SFT);
req.sq_pg_size_sq_lvl = pg_sz_lvl;
req.sq_fwo_sq_sge = cpu_to_le16(((0 << CMDQ_CREATE_QP_SQ_FWO_SFT) &
CMDQ_CREATE_QP_SQ_FWO_MASK) |
(sq->max_sge &
CMDQ_CREATE_QP_SQ_SGE_MASK));
req.scq_cid = cpu_to_le32(qp->scq->id);
if (!qp->srq) {
hwq_attr.res = res;
hwq_attr.sginfo = &rq->sginfo;
hwq_attr.stride = bnxt_qplib_get_stride();
hwq_attr.depth = bnxt_qplib_get_depth(rq, qp->wqe_mode, false);
hwq_attr.aux_stride = 0;
hwq_attr.aux_depth = 0;
hwq_attr.type = HWQ_TYPE_QUEUE;
rc = bnxt_qplib_alloc_init_hwq(&rq->hwq, &hwq_attr);
if (rc)
goto fail_sq;
req.rq_size = cpu_to_le32(rq->max_wqe);
req.rq_pbl = cpu_to_le64(_get_base_addr(&rq->hwq));
pg_sz_lvl = _get_base_pg_size(&rq->hwq) <<
CMDQ_CREATE_QP_RQ_PG_SIZE_SFT;
pg_sz_lvl |= ((rq->hwq.level & CMDQ_CREATE_QP_RQ_LVL_MASK) <<
CMDQ_CREATE_QP_RQ_LVL_SFT);
req.rq_pg_size_rq_lvl = pg_sz_lvl;
nsge = (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
res->dattr->max_qp_sges : rq->max_sge;
req.rq_fwo_rq_sge =
cpu_to_le16(((0 << CMDQ_CREATE_QP_RQ_FWO_SFT) &
CMDQ_CREATE_QP_RQ_FWO_MASK) |
(nsge & CMDQ_CREATE_QP_RQ_SGE_MASK));
} else {
qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_SRQ_USED;
req.srq_cid = cpu_to_le32(qp->srq->id);
}
req.rcq_cid = cpu_to_le32(qp->rcq->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;
if (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE)
qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_VARIABLE_SIZED_WQE_ENABLED;
if (res->cctx->modes.te_bypass)
qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_OPTIMIZED_TRANSMIT_ENABLED;
if (res->dattr &&
bnxt_ext_stats_supported(qp->cctx, res->dattr->dev_cap_flags, res->is_vf))
qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_EXT_STATS_ENABLED;
req.qp_flags = cpu_to_le32(qp_flags);
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);
sginfo.pgsize = req_size;
sginfo.pgshft = PAGE_SHIFT;
hwq_attr.res = res;
hwq_attr.sginfo = &sginfo;
hwq_attr.depth = xrrq->max_elements;
hwq_attr.stride = BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE;
hwq_attr.aux_stride = 0;
hwq_attr.aux_depth = 0;
hwq_attr.type = HWQ_TYPE_CTX;
rc = bnxt_qplib_alloc_init_hwq(xrrq, &hwq_attr);
if (rc)
goto fail_rq;
req.orrq_addr = cpu_to_le64(_get_base_addr(xrrq));
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);
sginfo.pgsize = req_size;
hwq_attr.depth = xrrq->max_elements;
hwq_attr.stride = BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE;
rc = bnxt_qplib_alloc_init_hwq(xrrq, &hwq_attr);
if (rc)
goto fail_orrq;
req.irrq_addr = cpu_to_le64(_get_base_addr(xrrq));
}
req.pd_id = cpu_to_le32(qp->pd->id);
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_CREATE_QP,
sizeof(req));
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
if (rc)
goto fail;
if (!qp->is_user) {
rc = bnxt_qplib_alloc_init_swq(sq);
if (rc)
goto swq_sq;
if (!qp->srq) {
rc = bnxt_qplib_alloc_init_swq(rq);
if (rc)
goto swq_rq;
}
if (psn_sz)
bnxt_qplib_init_psn_ptr(qp, psn_sz);
}
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);
sq->dbinfo.hwq = &sq->hwq;
sq->dbinfo.xid = qp->id;
sq->dbinfo.db = qp->dpi->dbr;
sq->dbinfo.max_slot = _set_sq_max_slot(qp->wqe_mode);
sq->dbinfo.flags = 0;
spin_lock_init(&sq->dbinfo.lock);
sq->dbinfo.shadow_key = BNXT_QPLIB_DBR_KEY_INVALID;
sq->dbinfo.res = res;
sq->dbinfo.seed = qp->id;
if (rq->max_wqe) {
rq->dbinfo.hwq = &rq->hwq;
rq->dbinfo.xid = qp->id;
rq->dbinfo.db = qp->dpi->dbr;
rq->dbinfo.max_slot = _set_rq_max_slot(rq);
rq->dbinfo.flags = 0;
spin_lock_init(&rq->dbinfo.lock);
rq->dbinfo.shadow_key = BNXT_QPLIB_DBR_KEY_INVALID;
rq->dbinfo.res = res;
rq->dbinfo.seed = qp->id;
}
tbl = &res->reftbl.qpref;
qp_idx = map_qp_id_to_tbl_indx(qp->id, tbl);
spin_lock_irqsave(&tbl->lock, flag);
tbl->rec[qp_idx].xid = qp->id;
tbl->rec[qp_idx].handle = qp;
spin_unlock_irqrestore(&tbl->lock, flag);
return 0;
swq_rq:
kfree(sq->swq);
swq_sq:
__qplib_destroy_qp(rcfw, qp);
fail:
bnxt_qplib_free_hwq(res, &qp->irrq);
fail_orrq:
bnxt_qplib_free_hwq(res, &qp->orrq);
fail_rq:
bnxt_qplib_free_hwq(res, &rq->hwq);
fail_sq:
bnxt_qplib_free_hwq(res, &sq->hwq);
exit:
return rc;
}
static void __filter_modify_flags(struct bnxt_qplib_qp *qp)
{
switch (qp->cur_qp_state) {
case CMDQ_MODIFY_QP_NEW_STATE_RESET:
switch (qp->state) {
case CMDQ_MODIFY_QP_NEW_STATE_INIT:
break;
default:
break;
}
break;
case CMDQ_MODIFY_QP_NEW_STATE_INIT:
switch (qp->state) {
case CMDQ_MODIFY_QP_NEW_STATE_RTR:
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;
if (qp->max_dest_rd_atomic < 1)
qp->max_dest_rd_atomic = 1;
qp->modify_flags &= ~CMDQ_MODIFY_QP_MODIFY_MASK_SRC_MAC;
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;
}
break;
case CMDQ_MODIFY_QP_NEW_STATE_RTR:
switch (qp->state) {
case CMDQ_MODIFY_QP_NEW_STATE_RTS:
if (qp->max_rd_atomic < 1)
qp->max_rd_atomic = 1;
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;
}
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 creq_modify_qp_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct cmdq_modify_qp req = {};
bool ppp_requested = false;
u32 temp32[4];
u32 bmask;
int rc;
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_MODIFY_QP,
sizeof(req));
__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 == true ?
CMDQ_MODIFY_QP_EN_SQD_ASYNC_NOTIFY : 0);
if (__can_request_ppp(qp)) {
req.path_mtu_pingpong_push_enable =
CMDQ_MODIFY_QP_PINGPONG_PUSH_ENABLE;
req.pingpong_push_dpi = qp->ppp.dpi;
ppp_requested = true;
}
}
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)
req.pkey = IB_DEFAULT_PKEY_FULL;
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_pingpong_push_enable = 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);
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_ENABLE_CC)
req.enable_cc = cpu_to_le16(CMDQ_MODIFY_QP_ENABLE_CC);
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TOS_ECN)
req.tos_dscp_tos_ecn =
((qp->tos_ecn << CMDQ_MODIFY_QP_TOS_ECN_SFT) &
CMDQ_MODIFY_QP_TOS_ECN_MASK);
if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TOS_DSCP)
req.tos_dscp_tos_ecn |=
((qp->tos_dscp << CMDQ_MODIFY_QP_TOS_DSCP_SFT) &
CMDQ_MODIFY_QP_TOS_DSCP_MASK);
req.vlan_pcp_vlan_dei_vlan_id = cpu_to_le16(qp->vlan_id);
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
msg.qp_state = qp->state;
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
if (rc == -ETIMEDOUT && (qp->state == CMDQ_MODIFY_QP_NEW_STATE_ERR)) {
qp->cur_qp_state = qp->state;
return 0;
} else if (rc) {
return rc;
}
if (ppp_requested)
qp->ppp.st_idx_en = resp.pingpong_push_state_index_enabled;
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 creq_query_qp_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct bnxt_qplib_rcfw_sbuf sbuf;
struct creq_query_qp_resp_sb *sb;
struct cmdq_query_qp req = {};
u32 temp32[4];
int i, rc;
sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS);
sbuf.sb = dma_zalloc_coherent(&rcfw->pdev->dev, sbuf.size,
&sbuf.dma_addr, GFP_KERNEL);
if (!sbuf.sb)
return -ENOMEM;
sb = sbuf.sb;
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_QUERY_QP,
sizeof(req));
req.qp_cid = cpu_to_le32(qp->id);
req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS;
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req),
sizeof(resp), 0);
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
if (rc)
goto bail;
qp->state = sb->en_sqd_async_notify_state &
CREQ_QUERY_QP_RESP_SB_STATE_MASK;
qp->cur_qp_state = qp->state;
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_dbg(&res->pdev->dev,
"QPLIB: SGID not found qp->id = 0x%x sgid_index = 0x%x\n",
qp->id, le16_to_cpu(sb->sgid_index));
qp->ah.hop_limit = sb->hop_limit;
qp->ah.traffic_class = sb->traffic_class;
memcpy(qp->ah.dmac, sb->dest_mac, ETH_ALEN);
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;
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, ETH_ALEN);
qp->vlan_id = le16_to_cpu(sb->vlan_pcp_vlan_dei_vlan_id);
qp->port_id = le16_to_cpu(sb->port_id);
bail:
dma_free_coherent(&rcfw->pdev->dev, sbuf.size,
sbuf.sb, sbuf.dma_addr);
return rc;
}
static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp)
{
struct bnxt_qplib_hwq *cq_hwq = &cq->hwq;
u32 peek_flags, peek_cons;
struct cq_base *hw_cqe;
int i;
peek_flags = cq->dbinfo.flags;
peek_cons = cq_hwq->cons;
for (i = 0; i < cq_hwq->depth; i++) {
hw_cqe = bnxt_qplib_get_qe(cq_hwq, peek_cons, NULL);
if (CQE_CMP_VALID(hw_cqe, peek_flags)) {
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;
}
}
bnxt_qplib_hwq_incr_cons(cq_hwq->depth, &peek_cons,
1, &peek_flags);
}
}
int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
struct bnxt_qplib_qp *qp)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct bnxt_qplib_reftbl *tbl;
unsigned long flags;
u32 qp_idx;
int rc;
tbl = &res->reftbl.qpref;
qp_idx = map_qp_id_to_tbl_indx(qp->id, tbl);
spin_lock_irqsave(&tbl->lock, flags);
tbl->rec[qp_idx].xid = BNXT_QPLIB_QP_ID_INVALID;
tbl->rec[qp_idx].handle = NULL;
spin_unlock_irqrestore(&tbl->lock, flags);
rc = __qplib_destroy_qp(rcfw, qp);
if (rc) {
spin_lock_irqsave(&tbl->lock, flags);
tbl->rec[qp_idx].xid = qp->id;
tbl->rec[qp_idx].handle = qp;
spin_unlock_irqrestore(&tbl->lock, flags);
return rc;
}
return 0;
}
void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res,
struct bnxt_qplib_qp *qp)
{
if (qp->irrq.max_elements)
bnxt_qplib_free_hwq(res, &qp->irrq);
if (qp->orrq.max_elements)
bnxt_qplib_free_hwq(res, &qp->orrq);
if (!qp->is_user)
kfree(qp->rq.swq);
bnxt_qplib_free_hwq(res, &qp->rq.hwq);
if (!qp->is_user)
kfree(qp->sq.swq);
bnxt_qplib_free_hwq(res, &qp->sq.hwq);
}
void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_sge *sge)
{
struct bnxt_qplib_q *sq = &qp->sq;
struct bnxt_qplib_hdrbuf *buf;
u32 sw_prod;
memset(sge, 0, sizeof(*sge));
buf = qp->sq_hdr_buf;
if (buf) {
sw_prod = sq->swq_start;
sge->addr = (dma_addr_t)(buf->dma_map + sw_prod * buf->step);
sge->lkey = 0xFFFFFFFF;
sge->size = buf->step;
return buf->va + 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 rq->swq_start;
}
void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_sge *sge)
{
struct bnxt_qplib_q *rq = &qp->rq;
struct bnxt_qplib_hdrbuf *buf;
u32 sw_prod;
memset(sge, 0, sizeof(*sge));
buf = qp->rq_hdr_buf;
if (buf) {
sw_prod = rq->swq_start;
sge->addr = (dma_addr_t)(buf->dma_map + sw_prod * buf->step);
sge->lkey = 0xFFFFFFFF;
sge->size = buf->step;
return buf->va + sw_prod * sge->size;
}
return NULL;
}
static void bnxt_qplib_fill_msn_search(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_swqe *wqe,
struct bnxt_qplib_swq *swq)
{
struct sq_msn_search *msns;
u32 start_psn, next_psn;
u16 start_idx;
msns = (struct sq_msn_search *)swq->psn_search;
msns->start_idx_next_psn_start_psn = 0;
start_psn = swq->start_psn;
next_psn = swq->next_psn;
start_idx = swq->slot_idx;
msns->start_idx_next_psn_start_psn |=
bnxt_re_update_msn_tbl(start_idx, next_psn, start_psn);
pr_debug("QP_LIB MSN %d START_IDX %u NEXT_PSN %u START_PSN %u\n",
qp->msn,
(u16)
cpu_to_le16(BNXT_RE_MSN_IDX(msns->start_idx_next_psn_start_psn)),
(u32)
cpu_to_le32(BNXT_RE_MSN_NPSN(msns->start_idx_next_psn_start_psn)),
(u32)
cpu_to_le32(BNXT_RE_MSN_SPSN(msns->start_idx_next_psn_start_psn)));
qp->msn++;
qp->msn %= qp->msn_tbl_sz;
}
static void bnxt_qplib_fill_psn_search(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_swqe *wqe,
struct bnxt_qplib_swq *swq)
{
struct sq_psn_search_ext *psns_ext;
struct sq_psn_search *psns;
u32 flg_npsn;
u32 op_spsn;
if (!swq->psn_search)
return;
if (qp->is_host_msn_tbl) {
bnxt_qplib_fill_msn_search(qp, wqe, swq);
return;
}
psns = (struct sq_psn_search *)swq->psn_search;
psns_ext = (struct sq_psn_search_ext *)swq->psn_search;
op_spsn = ((swq->start_psn << SQ_PSN_SEARCH_START_PSN_SFT) &
SQ_PSN_SEARCH_START_PSN_MASK);
op_spsn |= ((wqe->type << SQ_PSN_SEARCH_OPCODE_SFT) &
SQ_PSN_SEARCH_OPCODE_MASK);
flg_npsn = ((swq->next_psn << SQ_PSN_SEARCH_NEXT_PSN_SFT) &
SQ_PSN_SEARCH_NEXT_PSN_MASK);
if (_is_chip_gen_p5_p7(qp->cctx)) {
psns_ext->opcode_start_psn = cpu_to_le32(op_spsn);
psns_ext->flags_next_psn = cpu_to_le32(flg_npsn);
psns_ext->start_slot_idx = cpu_to_le16(swq->slot_idx);
} else {
psns->opcode_start_psn = cpu_to_le32(op_spsn);
psns->flags_next_psn = cpu_to_le32(flg_npsn);
}
}
static u16 _calc_ilsize(struct bnxt_qplib_swqe *wqe)
{
u16 size = 0;
int indx;
for (indx = 0; indx < wqe->num_sge; indx++)
size += wqe->sg_list[indx].size;
return size;
}
static int bnxt_qplib_put_inline(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_swqe *wqe,
u32 *sw_prod)
{
struct bnxt_qplib_hwq *sq_hwq;
int len, t_len, offt = 0;
int t_cplen = 0, cplen;
bool pull_dst = true;
void *il_dst = NULL;
void *il_src = NULL;
int indx;
sq_hwq = &qp->sq.hwq;
t_len = 0;
for (indx = 0; indx < wqe->num_sge; indx++) {
len = wqe->sg_list[indx].size;
il_src = (void *)wqe->sg_list[indx].addr;
t_len += len;
if (t_len > qp->max_inline_data)
goto bad;
while (len) {
if (pull_dst) {
pull_dst = false;
il_dst = bnxt_qplib_get_qe(sq_hwq, ((*sw_prod) %
sq_hwq->depth), NULL);
(*sw_prod)++;
t_cplen = 0;
offt = 0;
}
cplen = min_t(int, len, sizeof(struct sq_sge));
cplen = min_t(int, cplen,
(sizeof(struct sq_sge) - offt));
memcpy(il_dst, il_src, cplen);
t_cplen += cplen;
il_src += cplen;
il_dst += cplen;
offt += cplen;
len -= cplen;
if (t_cplen == sizeof(struct sq_sge))
pull_dst = true;
}
}
return t_len;
bad:
return -ENOMEM;
}
static int bnxt_qplib_put_sges(struct bnxt_qplib_hwq *sq_hwq,
struct bnxt_qplib_sge *ssge,
u32 nsge, u32 *sw_prod)
{
struct sq_sge *dsge;
int indx, len = 0;
for (indx = 0; indx < nsge; indx++, (*sw_prod)++) {
dsge = bnxt_qplib_get_qe(sq_hwq, ((*sw_prod) % sq_hwq->depth), NULL);
dsge->va_or_pa = cpu_to_le64(ssge[indx].addr);
dsge->l_key = cpu_to_le32(ssge[indx].lkey);
dsge->size = cpu_to_le32(ssge[indx].size);
len += ssge[indx].size;
}
return len;
}
static u16 _calculate_wqe_byte(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_swqe *wqe, u16 *wqe_byte)
{
u16 wqe_size;
u32 ilsize;
u16 nsge;
nsge = wqe->num_sge;
if (wqe->flags & BNXT_QPLIB_SWQE_FLAGS_INLINE) {
ilsize = _calc_ilsize(wqe);
wqe_size = (ilsize > qp->max_inline_data) ?
qp->max_inline_data : ilsize;
wqe_size = ALIGN(wqe_size, sizeof(struct sq_sge));
} else {
wqe_size = nsge * sizeof(struct sq_sge);
}
wqe_size += sizeof(struct sq_send_hdr);
if (wqe_byte)
*wqe_byte = wqe_size;
return wqe_size / sizeof(struct sq_sge);
}
static u16 _translate_q_full_delta(struct bnxt_qplib_q *que, u16 wqe_bytes)
{
return (que->q_full_delta * wqe_bytes) / que->hwq.element_size;
}
static void bnxt_qplib_pull_psn_buff(struct bnxt_qplib_qp *qp, struct bnxt_qplib_q *sq,
struct bnxt_qplib_swq *swq, bool is_host_msn_tbl)
{
struct bnxt_qplib_hwq *sq_hwq;
u32 pg_num, pg_indx;
void *buff;
u32 tail;
sq_hwq = &sq->hwq;
if (!sq_hwq->pad_pg)
return;
tail = swq->slot_idx / sq->dbinfo.max_slot;
if (is_host_msn_tbl) {
tail = qp->msn;
tail %= qp->msn_tbl_sz;
}
pg_num = (tail + sq_hwq->pad_pgofft) / (PAGE_SIZE / sq_hwq->pad_stride);
pg_indx = (tail + sq_hwq->pad_pgofft) % (PAGE_SIZE / sq_hwq->pad_stride);
buff = (void *)(sq_hwq->pad_pg[pg_num] + pg_indx * sq_hwq->pad_stride);
swq->psn_search = buff;
}
void bnxt_qplib_post_send_db(struct bnxt_qplib_qp *qp)
{
struct bnxt_qplib_q *sq = &qp->sq;
bnxt_qplib_ring_prod_db(&sq->dbinfo, DBC_DBC_TYPE_SQ);
}
int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_swqe *wqe)
{
struct bnxt_qplib_nq_work *nq_work = NULL;
int i, rc = 0, data_len = 0, pkt_num = 0;
struct bnxt_qplib_q *sq = &qp->sq;
struct bnxt_qplib_hwq *sq_hwq;
struct bnxt_qplib_swq *swq;
bool sch_handler = false;
u16 slots_needed;
bool msn_update;
void *base_hdr;
void *ext_hdr;
__le32 temp32;
u16 qfd_slots;
u8 wqe_slots;
u16 wqe_size;
u32 sw_prod;
u32 wqe_idx;
sq_hwq = &sq->hwq;
if (qp->state != CMDQ_MODIFY_QP_NEW_STATE_RTS &&
qp->state != CMDQ_MODIFY_QP_NEW_STATE_ERR) {
dev_err(&sq_hwq->pdev->dev,
"QPLIB: FP: QP (0x%x) is in the 0x%x state\n",
qp->id, qp->state);
rc = -EINVAL;
goto done;
}
wqe_slots = _calculate_wqe_byte(qp, wqe, &wqe_size);
slots_needed = (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
sq->dbinfo.max_slot : wqe_slots;
qfd_slots = _translate_q_full_delta(sq, wqe_size);
if (bnxt_qplib_queue_full(sq_hwq, (slots_needed + qfd_slots))) {
dev_err(&sq_hwq->pdev->dev,
"QPLIB: FP: QP (0x%x) SQ is full!\n", qp->id);
dev_err(&sq_hwq->pdev->dev,
"QPLIB: prod = %#x cons = %#x qdepth = %#x delta = %#x slots = %#x\n",
HWQ_CMP(sq_hwq->prod, sq_hwq),
HWQ_CMP(sq_hwq->cons, sq_hwq),
sq_hwq->max_elements, qfd_slots, slots_needed);
dev_err(&sq_hwq->pdev->dev,
"QPLIB: phantom_wqe_cnt: %d phantom_cqe_cnt: %d\n",
sq->phantom_wqe_cnt, sq->phantom_cqe_cnt);
rc = -ENOMEM;
goto done;
}
sw_prod = sq_hwq->prod;
swq = bnxt_qplib_get_swqe(sq, &wqe_idx);
swq->slot_idx = sw_prod;
bnxt_qplib_pull_psn_buff(qp, sq, swq, qp->is_host_msn_tbl);
swq->wr_id = wqe->wr_id;
swq->type = wqe->type;
swq->flags = wqe->flags;
swq->slots = slots_needed;
swq->start_psn = sq->psn & BTH_PSN_MASK;
if (qp->sig_type || wqe->flags & BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP)
swq->flags |= SQ_SEND_FLAGS_SIGNAL_COMP;
dev_dbg(&sq_hwq->pdev->dev,
"QPLIB: FP: QP(0x%x) post SQ wr_id[%d] = 0x%llx\n",
qp->id, wqe_idx, swq->wr_id);
if (qp->cur_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;
}
base_hdr = bnxt_qplib_get_qe(sq_hwq, sw_prod, NULL);
sw_prod++;
ext_hdr = bnxt_qplib_get_qe(sq_hwq, (sw_prod % sq_hwq->depth), NULL);
sw_prod++;
memset(base_hdr, 0, sizeof(struct sq_sge));
memset(ext_hdr, 0, sizeof(struct sq_sge));
if (wqe->flags & BNXT_QPLIB_SWQE_FLAGS_INLINE)
data_len = bnxt_qplib_put_inline(qp, wqe, &sw_prod);
else
data_len = bnxt_qplib_put_sges(sq_hwq, wqe->sg_list,
wqe->num_sge, &sw_prod);
if (data_len < 0)
goto queue_err;
msn_update = true;
switch (wqe->type) {
case BNXT_QPLIB_SWQE_TYPE_SEND:
if (qp->type == CMDQ_CREATE_QP_TYPE_RAW_ETHERTYPE ||
qp->type == CMDQ_CREATE_QP1_TYPE_GSI) {
struct sq_send_raweth_qp1_hdr *sqe = base_hdr;
struct sq_raw_ext_hdr *ext_sqe = ext_hdr;
sqe->wqe_type = wqe->type;
sqe->flags = wqe->flags;
sqe->wqe_size = wqe_slots;
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);
ext_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);
dev_dbg(&sq_hwq->pdev->dev,
"QPLIB: FP: RAW/QP1 Send WQE:\n"
"\twqe_type = 0x%x\n"
"\tflags = 0x%x\n"
"\twqe_size = 0x%x\n"
"\tlflags = 0x%x\n"
"\tcfa_action = 0x%x\n"
"\tlength = 0x%x\n"
"\tcfa_meta = 0x%x\n",
sqe->wqe_type, sqe->flags, sqe->wqe_size,
sqe->lflags, sqe->cfa_action,
sqe->length, ext_sqe->cfa_meta);
break;
}
fallthrough;
case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM:
fallthrough;
case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV:
{
struct sq_send_hdr *sqe = base_hdr;
struct sq_ud_ext_hdr *ext_sqe = ext_hdr;
sqe->wqe_type = wqe->type;
sqe->flags = wqe->flags;
sqe->wqe_size = wqe_slots;
sqe->inv_key_or_imm_data = cpu_to_le32(wqe->send.inv_key);
if (qp->type == CMDQ_CREATE_QP_TYPE_UD ||
qp->type == CMDQ_CREATE_QP_TYPE_GSI) {
sqe->q_key = cpu_to_le32(wqe->send.q_key);
sqe->length = cpu_to_le32(data_len);
ext_sqe->dst_qp = cpu_to_le32(
wqe->send.dst_qp & SQ_SEND_DST_QP_MASK);
ext_sqe->avid = cpu_to_le32(wqe->send.avid &
SQ_SEND_AVID_MASK);
sq->psn = (sq->psn + 1) & BTH_PSN_MASK;
msn_update = false;
} else {
sqe->length = cpu_to_le32(data_len);
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;
}
dev_dbg(&sq_hwq->pdev->dev,
"QPLIB: FP: Send WQE:\n"
"\twqe_type = 0x%x\n"
"\tflags = 0x%x\n"
"\twqe_size = 0x%x\n"
"\tinv_key/immdata = 0x%x\n"
"\tq_key = 0x%x\n"
"\tdst_qp = 0x%x\n"
"\tlength = 0x%x\n"
"\tavid = 0x%x\n",
sqe->wqe_type, sqe->flags, sqe->wqe_size,
sqe->inv_key_or_imm_data, sqe->q_key, ext_sqe->dst_qp,
sqe->length, ext_sqe->avid);
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_hdr *sqe = base_hdr;
struct sq_rdma_ext_hdr *ext_sqe = ext_hdr;
sqe->wqe_type = wqe->type;
sqe->flags = wqe->flags;
sqe->wqe_size = wqe_slots;
sqe->imm_data = cpu_to_le32(wqe->rdma.inv_key);
sqe->length = cpu_to_le32((u32)data_len);
ext_sqe->remote_va = cpu_to_le64(wqe->rdma.remote_va);
ext_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;
dev_dbg(&sq_hwq->pdev->dev,
"QPLIB: FP: RDMA WQE:\n"
"\twqe_type = 0x%x\n"
"\tflags = 0x%x\n"
"\twqe_size = 0x%x\n"
"\timmdata = 0x%x\n"
"\tlength = 0x%x\n"
"\tremote_va = 0x%llx\n"
"\tremote_key = 0x%x\n",
sqe->wqe_type, sqe->flags, sqe->wqe_size,
sqe->imm_data, sqe->length, ext_sqe->remote_va,
ext_sqe->remote_key);
break;
}
case BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP:
case BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD:
{
struct sq_atomic_hdr *sqe = base_hdr;
struct sq_atomic_ext_hdr *ext_sqe = ext_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);
ext_sqe->swap_data = cpu_to_le64(wqe->atomic.swap_data);
ext_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_hdr *sqe = base_hdr;
sqe->wqe_type = wqe->type;
sqe->flags = wqe->flags;
sqe->inv_l_key = cpu_to_le32(wqe->local_inv.inv_l_key);
dev_dbg(&sq_hwq->pdev->dev,
"QPLIB: FP: LOCAL INV WQE:\n"
"\twqe_type = 0x%x\n"
"\tflags = 0x%x\n"
"\tinv_l_key = 0x%x\n",
sqe->wqe_type, sqe->flags, sqe->inv_l_key);
msn_update = false;
break;
}
case BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR:
{
struct sq_fr_pmr_hdr *sqe = base_hdr;
struct sq_fr_pmr_ext_hdr *ext_sqe = ext_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 == true ? 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);
if (!wqe->frmr.levels && !wqe->frmr.pbl_ptr) {
ext_sqe->pblptr = cpu_to_le64(wqe->frmr.page_list[0]);
} else {
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);
ext_sqe->pblptr = cpu_to_le64(wqe->frmr.pbl_dma_ptr);
}
ext_sqe->va = cpu_to_le64(wqe->frmr.va);
dev_dbg(&sq_hwq->pdev->dev,
"QPLIB: FP: FRMR WQE:\n"
"\twqe_type = 0x%x\n"
"\tflags = 0x%x\n"
"\taccess_cntl = 0x%x\n"
"\tzero_based_page_size_log = 0x%x\n"
"\tl_key = 0x%x\n"
"\tlength = 0x%x\n"
"\tnumlevels_pbl_page_size_log = 0x%x\n"
"\tpblptr = 0x%llx\n"
"\tva = 0x%llx\n",
sqe->wqe_type, sqe->flags, sqe->access_cntl,
sqe->zero_based_page_size_log, sqe->l_key,
*(u32 *)sqe->length, sqe->numlevels_pbl_page_size_log,
ext_sqe->pblptr, ext_sqe->va);
msn_update = false;
break;
}
case BNXT_QPLIB_SWQE_TYPE_BIND_MW:
{
struct sq_bind_hdr *sqe = base_hdr;
struct sq_bind_ext_hdr *ext_sqe = ext_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 == true ? 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);
ext_sqe->va = cpu_to_le64(wqe->bind.va);
ext_sqe->length_lo = cpu_to_le32(wqe->bind.length);
dev_dbg(&sq_hwq->pdev->dev,
"QPLIB: FP: BIND WQE:\n"
"\twqe_type = 0x%x\n"
"\tflags = 0x%x\n"
"\taccess_cntl = 0x%x\n"
"\tmw_type_zero_based = 0x%x\n"
"\tparent_l_key = 0x%x\n"
"\tl_key = 0x%x\n"
"\tva = 0x%llx\n"
"\tlength = 0x%x\n",
sqe->wqe_type, sqe->flags, sqe->access_cntl,
sqe->mw_type_zero_based, sqe->parent_l_key,
sqe->l_key, sqe->va, ext_sqe->length_lo);
msn_update = false;
break;
}
default:
rc = -EINVAL;
goto done;
}
if (!qp->is_host_msn_tbl || msn_update) {
swq->next_psn = sq->psn & BTH_PSN_MASK;
bnxt_qplib_fill_psn_search(qp, wqe, swq);
}
queue_err:
bnxt_qplib_swq_mod_start(sq, wqe_idx);
bnxt_qplib_hwq_incr_prod(&sq->dbinfo, sq_hwq, swq->slots);
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!\n");
rc = -ENOMEM;
}
}
return rc;
}
void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp)
{
struct bnxt_qplib_q *rq = &qp->rq;
bnxt_qplib_ring_prod_db(&rq->dbinfo, DBC_DBC_TYPE_RQ);
}
void bnxt_re_handle_cqn(struct bnxt_qplib_cq *cq)
{
struct bnxt_qplib_nq *nq;
if (!(cq && cq->nq))
return;
nq = cq->nq;
spin_lock_bh(&cq->compl_lock);
if (nq->cqn_handler) {
dev_dbg(&nq->res->pdev->dev,
"%s:Trigger cq = %p event nq = %p\n",
__func__, cq, nq);
nq->cqn_handler(nq, cq);
}
spin_unlock_bh(&cq->compl_lock);
}
int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_swqe *wqe)
{
struct bnxt_qplib_nq_work *nq_work = NULL;
struct bnxt_qplib_q *rq = &qp->rq;
struct bnxt_qplib_hwq *rq_hwq;
struct bnxt_qplib_swq *swq;
bool sch_handler = false;
struct rq_wqe_hdr *base_hdr;
struct rq_ext_hdr *ext_hdr;
struct sq_sge *dsge;
u8 wqe_slots;
u32 wqe_idx;
u32 sw_prod;
int rc = 0;
rq_hwq = &rq->hwq;
if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_RESET) {
dev_err(&rq_hwq->pdev->dev,
"QPLIB: FP: QP (0x%x) is in the 0x%x state\n",
qp->id, qp->state);
rc = -EINVAL;
goto done;
}
wqe_slots = _calculate_wqe_byte(qp, wqe, NULL);
if (bnxt_qplib_queue_full(rq_hwq, rq->dbinfo.max_slot)) {
dev_err(&rq_hwq->pdev->dev,
"QPLIB: FP: QP (0x%x) RQ is full!\n", qp->id);
rc = -EINVAL;
goto done;
}
swq = bnxt_qplib_get_swqe(rq, &wqe_idx);
swq->wr_id = wqe->wr_id;
swq->slots = rq->dbinfo.max_slot;
dev_dbg(&rq_hwq->pdev->dev,
"QPLIB: FP: post RQ wr_id[%d] = 0x%llx\n",
wqe_idx, swq->wr_id);
if (qp->cur_qp_state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
sch_handler = true;
dev_dbg(&rq_hwq->pdev->dev, "%s Error QP. Sched a flushed cmpl\n",
__func__);
goto queue_err;
}
sw_prod = rq_hwq->prod;
base_hdr = bnxt_qplib_get_qe(rq_hwq, sw_prod, NULL);
sw_prod++;
ext_hdr = bnxt_qplib_get_qe(rq_hwq, (sw_prod % rq_hwq->depth), NULL);
sw_prod++;
memset(base_hdr, 0, sizeof(struct sq_sge));
memset(ext_hdr, 0, sizeof(struct sq_sge));
if (!wqe->num_sge) {
dsge = bnxt_qplib_get_qe(rq_hwq, (sw_prod % rq_hwq->depth), NULL);
dsge->size = 0;
wqe_slots++;
} else {
bnxt_qplib_put_sges(rq_hwq, wqe->sg_list, wqe->num_sge, &sw_prod);
}
base_hdr->wqe_type = wqe->type;
base_hdr->flags = wqe->flags;
base_hdr->wqe_size = wqe_slots;
base_hdr->wr_id |= cpu_to_le32(wqe_idx);
queue_err:
bnxt_qplib_swq_mod_start(rq, wqe_idx);
bnxt_qplib_hwq_incr_prod(&rq->dbinfo, &rq->hwq, swq->slots);
done:
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!\n");
rc = -ENOMEM;
}
}
return rc;
}
int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
{
struct bnxt_qplib_hwq_attr hwq_attr = {};
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct creq_create_cq_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct cmdq_create_cq req = {};
struct bnxt_qplib_reftbl *tbl;
unsigned long flag;
u32 pg_sz_lvl = 0;
int rc;
hwq_attr.res = res;
hwq_attr.depth = cq->max_wqe;
hwq_attr.stride = sizeof(struct cq_base);
hwq_attr.type = HWQ_TYPE_QUEUE;
hwq_attr.sginfo = &cq->sginfo;
rc = bnxt_qplib_alloc_init_hwq(&cq->hwq, &hwq_attr);
if (rc)
goto exit;
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_CREATE_CQ,
sizeof(req));
if (!cq->dpi) {
dev_err(&rcfw->pdev->dev,
"QPLIB: FP: CREATE_CQ failed due to NULL DPI\n");
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->max_wqe);
req.pbl = cpu_to_le64(_get_base_addr(&cq->hwq));
pg_sz_lvl = _get_base_pg_size(&cq->hwq) << CMDQ_CREATE_CQ_PG_SIZE_SFT;
pg_sz_lvl |= ((cq->hwq.level & CMDQ_CREATE_CQ_LVL_MASK) <<
CMDQ_CREATE_CQ_LVL_SFT);
req.pg_size_lvl = cpu_to_le32(pg_sz_lvl);
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);
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
if (rc)
goto fail;
cq->id = le32_to_cpu(resp.xid);
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->flush_lock);
spin_lock_init(&cq->compl_lock);
cq->cctx = res->cctx;
cq->dbinfo.hwq = &cq->hwq;
cq->dbinfo.xid = cq->id;
cq->dbinfo.db = cq->dpi->dbr;
cq->dbinfo.priv_db = res->dpi_tbl.priv_db;
cq->dbinfo.flags = 0;
cq->dbinfo.toggle = 0;
cq->dbinfo.res = res;
cq->dbinfo.seed = cq->id;
spin_lock_init(&cq->dbinfo.lock);
cq->dbinfo.shadow_key = BNXT_QPLIB_DBR_KEY_INVALID;
cq->dbinfo.shadow_key_arm_ena = BNXT_QPLIB_DBR_KEY_INVALID;
tbl = &res->reftbl.cqref;
spin_lock_irqsave(&tbl->lock, flag);
tbl->rec[GET_TBL_INDEX(cq->id, tbl)].xid = cq->id;
tbl->rec[GET_TBL_INDEX(cq->id, tbl)].handle = cq;
spin_unlock_irqrestore(&tbl->lock, flag);
bnxt_qplib_armen_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMENA);
return 0;
fail:
bnxt_qplib_free_hwq(res, &cq->hwq);
exit:
return rc;
}
int bnxt_qplib_modify_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
{
return 0;
}
void bnxt_qplib_resize_cq_complete(struct bnxt_qplib_res *res,
struct bnxt_qplib_cq *cq)
{
bnxt_qplib_free_hwq(res, &cq->hwq);
memcpy(&cq->hwq, &cq->resize_hwq, sizeof(cq->hwq));
cq->dbinfo.flags &= ~(1UL << BNXT_QPLIB_FLAG_EPOCH_CONS_SHIFT);
if (!cq->resize_hwq.is_user)
bnxt_qplib_cq_coffack_db(&cq->dbinfo);
}
int bnxt_qplib_resize_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq,
int new_cqes)
{
struct bnxt_qplib_hwq_attr hwq_attr = {};
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct creq_resize_cq_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct cmdq_resize_cq req = {};
u32 pgsz = 0, lvl = 0, nsz = 0;
struct bnxt_qplib_pbl *pbl;
u16 count = -1;
int rc;
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_RESIZE_CQ,
sizeof(req));
hwq_attr.sginfo = &cq->sginfo;
hwq_attr.res = res;
hwq_attr.depth = new_cqes;
hwq_attr.stride = sizeof(struct cq_base);
hwq_attr.type = HWQ_TYPE_QUEUE;
rc = bnxt_qplib_alloc_init_hwq(&cq->resize_hwq, &hwq_attr);
if (rc)
return rc;
dev_dbg(&rcfw->pdev->dev, "QPLIB: FP: %s: pbl_lvl: %d\n", __func__,
cq->resize_hwq.level);
req.cq_cid = cpu_to_le32(cq->id);
pbl = &cq->resize_hwq.pbl[PBL_LVL_0];
pgsz = ((pbl->pg_size == ROCE_PG_SIZE_4K ? CMDQ_RESIZE_CQ_PG_SIZE_PG_4K :
pbl->pg_size == ROCE_PG_SIZE_8K ? CMDQ_RESIZE_CQ_PG_SIZE_PG_8K :
pbl->pg_size == ROCE_PG_SIZE_64K ? CMDQ_RESIZE_CQ_PG_SIZE_PG_64K :
pbl->pg_size == ROCE_PG_SIZE_2M ? CMDQ_RESIZE_CQ_PG_SIZE_PG_2M :
pbl->pg_size == ROCE_PG_SIZE_8M ? CMDQ_RESIZE_CQ_PG_SIZE_PG_8M :
pbl->pg_size == ROCE_PG_SIZE_1G ? CMDQ_RESIZE_CQ_PG_SIZE_PG_1G :
CMDQ_RESIZE_CQ_PG_SIZE_PG_4K) & CMDQ_RESIZE_CQ_PG_SIZE_MASK);
lvl = (cq->resize_hwq.level << CMDQ_RESIZE_CQ_LVL_SFT) &
CMDQ_RESIZE_CQ_LVL_MASK;
nsz = (new_cqes << CMDQ_RESIZE_CQ_NEW_CQ_SIZE_SFT) &
CMDQ_RESIZE_CQ_NEW_CQ_SIZE_MASK;
req.new_cq_size_pg_size_lvl = cpu_to_le32(nsz|pgsz|lvl);
req.new_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
if (!cq->resize_hwq.is_user)
set_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags);
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
if (rc)
goto fail;
if (!cq->resize_hwq.is_user) {
wait:
if (wait_event_interruptible_timeout(cq->waitq,
!test_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags),
msecs_to_jiffies(CQ_RESIZE_WAIT_TIME_MS)) ==
-ERESTARTSYS && count--)
goto wait;
if (test_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags)) {
dev_err(&rcfw->pdev->dev,
"QPLIB: FP: RESIZE_CQ timed out\n");
rc = -ETIMEDOUT;
goto fail;
}
bnxt_qplib_resize_cq_complete(res, cq);
}
return 0;
fail:
if (!cq->resize_hwq.is_user) {
bnxt_qplib_free_hwq(res, &cq->resize_hwq);
clear_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags);
}
return rc;
}
void bnxt_qplib_free_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
{
bnxt_qplib_free_hwq(res, &cq->hwq);
}
static void bnxt_qplib_sync_cq(struct bnxt_qplib_cq *cq)
{
struct bnxt_qplib_nq *nq = cq->nq;
flush_workqueue(cq->nq->cqn_wq);
mutex_lock(&nq->lock);
if (nq->requested)
synchronize_irq(nq->msix_vec);
mutex_unlock(&nq->lock);
}
int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
{
struct bnxt_qplib_rcfw *rcfw = res->rcfw;
struct creq_destroy_cq_resp resp = {};
struct bnxt_qplib_cmdqmsg msg = {};
struct cmdq_destroy_cq req = {};
struct bnxt_qplib_reftbl *tbl;
u16 total_cnq_events;
unsigned long flag;
int rc;
tbl = &res->reftbl.cqref;
spin_lock_irqsave(&tbl->lock, flag);
tbl->rec[GET_TBL_INDEX(cq->id, tbl)].handle = NULL;
tbl->rec[GET_TBL_INDEX(cq->id, tbl)].xid = 0;
spin_unlock_irqrestore(&tbl->lock, flag);
bnxt_qplib_rcfw_cmd_prep(&req, CMDQ_BASE_OPCODE_DESTROY_CQ,
sizeof(req));
req.cq_cid = cpu_to_le32(cq->id);
bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
sizeof(resp), 0);
rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
if (rc)
return rc;
total_cnq_events = le16_to_cpu(resp.total_cnq_events);
if (total_cnq_events >= 0)
dev_dbg(&rcfw->pdev->dev,
"%s: cq_id = 0x%x cq = 0x%p resp.total_cnq_events = 0x%x\n",
__func__, cq->id, cq, total_cnq_events);
__wait_for_all_nqes(cq, total_cnq_events);
bnxt_qplib_sync_cq(cq);
bnxt_qplib_free_hwq(res, &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)
{
struct bnxt_qplib_cqe *cqe;
u32 start, last;
int rc = 0;
start = sq->swq_start;
cqe = *pcqe;
while (*budget) {
last = sq->swq_last;
if (start == last) {
break;
}
if (sq->swq[last].wr_id == BNXT_QPLIB_FENCE_WRID) {
bnxt_re_legacy_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)qp;
cqe->wr_id = sq->swq[last].wr_id;
cqe->src_qp = qp->id;
cqe->type = sq->swq[last].type;
dev_dbg(&sq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed terminal Req \n");
dev_dbg(&sq->hwq.pdev->dev,
"QPLIB: wr_id[%d] = 0x%llx with status 0x%x\n",
last, cqe->wr_id, cqe->status);
cqe++;
(*budget)--;
skip_compl:
bnxt_qplib_hwq_incr_cons(sq->hwq.depth,
&sq->hwq.cons,
sq->swq[last].slots,
&sq->dbinfo.flags);
sq->swq_last = sq->swq[last].next_idx;
}
*pcqe = cqe;
if (!*budget && sq->swq_last != start)
rc = -EAGAIN;
dev_dbg(&sq->hwq.pdev->dev, "QPLIB: FP: Flush SQ rc = 0x%x\n", rc);
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 start, last;
int opcode = 0;
int rc = 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;
}
start = rq->swq_start;
cqe = *pcqe;
while (*budget) {
last = rq->swq_last;
if (last == start)
break;
memset(cqe, 0, sizeof(*cqe));
cqe->status =
CQ_RES_RC_STATUS_WORK_REQUEST_FLUSHED_ERR;
cqe->opcode = opcode;
cqe->qp_handle = (u64)qp;
cqe->wr_id = rq->swq[last].wr_id;
dev_dbg(&rq->hwq.pdev->dev, "QPLIB: FP: CQ Processed Res RC \n");
dev_dbg(&rq->hwq.pdev->dev,
"QPLIB: rq[%d] = 0x%llx with status 0x%x\n",
last, cqe->wr_id, cqe->status);
cqe++;
(*budget)--;
bnxt_qplib_hwq_incr_cons(rq->hwq.depth,
&rq->hwq.cons,
rq->swq[last].slots,
&rq->dbinfo.flags);
rq->swq_last = rq->swq[last].next_idx;
}
*pcqe = cqe;
if (!*budget && rq->swq_last != start)
rc = -EAGAIN;
dev_dbg(&rq->hwq.pdev->dev, "QPLIB: FP: Flush RQ rc = 0x%x\n", rc);
return rc;
}
void bnxt_qplib_mark_qp_error(void *qp_handle)
{
struct bnxt_qplib_qp *qp = qp_handle;
if (!qp)
return;
qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
qp->state = qp->cur_qp_state;
if (!qp->is_user)
bnxt_qplib_add_flush_qp(qp);
}
static int bnxt_re_legacy_do_wa9060(struct bnxt_qplib_qp *qp,
struct bnxt_qplib_cq *cq,
u32 cq_cons, u32 swq_last,
u32 cqe_sq_cons)
{
struct bnxt_qplib_q *sq = &qp->sq;
struct bnxt_qplib_swq *swq;
u32 peek_sw_cq_cons, peek_sq_cons_idx, peek_flags;
struct cq_terminal *peek_term_hwcqe;
struct cq_req *peek_req_hwcqe;
struct bnxt_qplib_qp *peek_qp;
struct bnxt_qplib_q *peek_sq;
struct cq_base *peek_hwcqe;
int i, rc = 0;
swq = &sq->swq[swq_last];
if (swq->psn_search &&
le32_to_cpu(swq->psn_search->flags_next_psn) & 0x80000000) {
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, swq_last, cqe_sq_cons);
sq->condition = true;
sq->legacy_send_phantom = true;
bnxt_qplib_ring_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMALL);
rc = -EAGAIN;
goto out;
}
if (sq->condition == true) {
peek_flags = cq->dbinfo.flags;
peek_sw_cq_cons = cq_cons;
i = cq->hwq.depth;
while (i--) {
peek_hwcqe = bnxt_qplib_get_qe(&cq->hwq,
peek_sw_cq_cons, NULL);
if (CQE_CMP_VALID(peek_hwcqe, peek_flags)) {
dma_rmb();
switch (peek_hwcqe->cqe_type_toggle &
CQ_BASE_CQE_TYPE_MASK) {
case CQ_BASE_CQE_TYPE_REQ:
peek_req_hwcqe = (struct cq_req *)
peek_hwcqe;
peek_qp = (struct bnxt_qplib_qp *)
le64_to_cpu(
peek_req_hwcqe->qp_handle);
peek_sq = &peek_qp->sq;
peek_sq_cons_idx =
((le16_to_cpu(
peek_req_hwcqe->sq_cons_idx)
- 1) % sq->max_wqe);
if (peek_sq == sq &&
sq->swq[peek_sq_cons_idx].wr_id ==
BNXT_QPLIB_FENCE_WRID) {
dev_dbg(&cq->hwq.pdev->dev,
"FP: Process Req qp=0x%x current sq cons sw=0x%x cqe=0x%x\n",
qp->id, swq_last,
cqe_sq_cons);
sq->condition = false;
sq->single = true;
sq->phantom_cqe_cnt++;
dev_dbg(&cq->hwq.pdev->dev,
"qp %#x condition restored at peek cq_cons=%#x sq_cons_idx %#x, phantom_cqe_cnt: %d unmark\n",
peek_qp->id,
peek_sw_cq_cons,
peek_sq_cons_idx,
sq->phantom_cqe_cnt);
rc = 0;
goto out;
}
break;
case CQ_BASE_CQE_TYPE_TERMINAL:
peek_term_hwcqe = (struct cq_terminal *)
peek_hwcqe;
peek_qp = (struct bnxt_qplib_qp *)
le64_to_cpu(
peek_term_hwcqe->qp_handle);
if (peek_qp == qp) {
sq->condition = false;
rc = 0;
goto out;
}
break;
default:
break;
}
} else {
rc = -EINVAL;
goto out;
}
bnxt_qplib_hwq_incr_cons(cq->hwq.depth,
&peek_sw_cq_cons,
1, &peek_flags);
}
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\n",
cq_cons, qp->id, swq_last, cqe_sq_cons);
rc = -EINVAL;
}
out:
return rc;
}
static int bnxt_qplib_get_cqe_sq_cons(struct bnxt_qplib_q *sq, u32 cqe_slot)
{
struct bnxt_qplib_hwq *sq_hwq;
struct bnxt_qplib_swq *swq;
int cqe_sq_cons = -1;
u32 start, last;
sq_hwq = &sq->hwq;
start = sq->swq_start;
last = sq->swq_last;
while (last != start) {
swq = &sq->swq[last];
if (swq->slot_idx == cqe_slot) {
cqe_sq_cons = swq->next_idx;
dev_err(&sq_hwq->pdev->dev, "%s: Found cons wqe = %d slot = %d\n",
__func__, cqe_sq_cons, cqe_slot);
break;
}
last = swq->next_idx;
}
return cqe_sq_cons;
}
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 cqe_sq_cons, slot_num;
struct bnxt_qplib_swq *swq;
int cqe_cons;
int rc = 0;
qp = (struct bnxt_qplib_qp *)le64_to_cpu(hwcqe->qp_handle);
dev_dbg(&cq->hwq.pdev->dev, "FP: Process Req qp=0x%p\n", qp);
if (!qp) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: Process Req qp is NULL\n");
return -EINVAL;
}
sq = &qp->sq;
cqe_sq_cons = le16_to_cpu(hwcqe->sq_cons_idx) % sq->max_sw_wqe;
if (qp->sq.flushed) {
dev_dbg(&cq->hwq.pdev->dev,
"%s: QPLIB: QP in Flush QP = %p\n", __func__, qp);
goto done;
}
if (__is_err_cqe_for_var_wqe(qp, hwcqe->status)) {
slot_num = le16_to_cpu(hwcqe->sq_cons_idx);
cqe_cons = bnxt_qplib_get_cqe_sq_cons(sq, slot_num);
if (cqe_cons < 0) {
dev_dbg(&cq->hwq.pdev->dev, "%s: Wrong SQ cons cqe_slot_indx = %d\n",
__func__, slot_num);
goto done;
}
cqe_sq_cons = cqe_cons;
dev_dbg(&cq->hwq.pdev->dev, "%s: cqe_sq_cons = %d swq_last = %d swq_start = %d\n",
__func__, cqe_sq_cons, sq->swq_last, sq->swq_start);
}
cqe = *pcqe;
while (*budget) {
if (sq->swq_last == cqe_sq_cons)
break;
swq = &sq->swq[sq->swq_last];
memset(cqe, 0, sizeof(*cqe));
cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
cqe->qp_handle = (u64)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;
if (swq->next_idx == cqe_sq_cons &&
hwcqe->status != CQ_REQ_STATUS_OK) {
cqe->status = hwcqe->status;
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed Req \n");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: QP 0x%x wr_id[%d] = 0x%lx vendor type 0x%x with vendor status 0x%x\n",
cqe->src_qp, sq->swq_last, cqe->wr_id, cqe->type, cqe->status);
cqe++;
(*budget)--;
bnxt_qplib_mark_qp_error(qp);
} else {
if (!_is_chip_gen_p5_p7(qp->cctx)) {
if (bnxt_re_legacy_do_wa9060(qp, cq, cq_cons,
sq->swq_last,
cqe_sq_cons)) {
*lib_qp = qp;
goto out;
}
}
if (swq->flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed Req \n");
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: wr_id[%d] = 0x%llx \n",
sq->swq_last, cqe->wr_id);
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: with status 0x%x\n", cqe->status);
cqe->status = CQ_REQ_STATUS_OK;
cqe++;
(*budget)--;
}
}
skip:
bnxt_qplib_hwq_incr_cons(sq->hwq.depth, &sq->hwq.cons,
swq->slots, &sq->dbinfo.flags);
sq->swq_last = swq->next_idx;
if (sq->single == true)
break;
}
out:
*pcqe = cqe;
if (sq->swq_last != cqe_sq_cons) {
rc = -EAGAIN;
goto done;
}
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;
bnxt_qplib_hwq_incr_cons(srq->hwq.depth, &srq->hwq.cons,
srq->dbinfo.max_slot, &srq->dbinfo.flags);
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_srq *srq;
struct bnxt_qplib_cqe *cqe;
struct bnxt_qplib_qp *qp;
struct bnxt_qplib_q *rq;
u32 wr_id_idx;
int rc = 0;
qp = (struct bnxt_qplib_qp *)le64_to_cpu(hwcqe->qp_handle);
if (!qp) {
dev_err(&cq->hwq.pdev->dev, "QPLIB: process_cq RC qp is NULL\n");
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) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: SRQ used but not defined??\n");
return -EINVAL;
}
if (wr_id_idx > srq->hwq.depth - 1) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process RC \n");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: wr_id idx 0x%x exceeded SRQ max 0x%x\n",
wr_id_idx, srq->hwq.depth);
return -EINVAL;
}
cqe->wr_id = srq->swq[wr_id_idx].wr_id;
bnxt_qplib_release_srqe(srq, wr_id_idx);
dev_dbg(&srq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed RC SRQ wr_id[%d] = 0x%llx\n",
wr_id_idx, cqe->wr_id);
cqe++;
(*budget)--;
*pcqe = cqe;
} else {
rq = &qp->rq;
if (wr_id_idx > (rq->max_wqe - 1)) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process RC \n");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: wr_id idx 0x%x exceeded RQ max 0x%x\n",
wr_id_idx, rq->hwq.depth);
return -EINVAL;
}
if (wr_id_idx != rq->swq_last)
return -EINVAL;
cqe->wr_id = rq->swq[rq->swq_last].wr_id;
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed RC RQ wr_id[%d] = 0x%llx\n",
rq->swq_last, cqe->wr_id);
cqe++;
(*budget)--;
bnxt_qplib_hwq_incr_cons(rq->hwq.depth, &rq->hwq.cons,
rq->swq[rq->swq_last].slots,
&rq->dbinfo.flags);
rq->swq_last = rq->swq[rq->swq_last].next_idx;
*pcqe = cqe;
if (hwcqe->status != CQ_RES_RC_STATUS_OK)
bnxt_qplib_mark_qp_error(qp);
}
done:
return rc;
}
static int bnxt_qplib_cq_process_res_ud(struct bnxt_qplib_cq *cq,
struct cq_res_ud_v2 *hwcqe,
struct bnxt_qplib_cqe **pcqe,
int *budget)
{
struct bnxt_qplib_srq *srq;
struct bnxt_qplib_cqe *cqe;
struct bnxt_qplib_qp *qp;
struct bnxt_qplib_q *rq;
u32 wr_id_idx;
int rc = 0;
u16 *smac;
qp = (struct bnxt_qplib_qp *)le64_to_cpu(hwcqe->qp_handle);
if (!qp) {
dev_err(&cq->hwq.pdev->dev, "QPLIB: process_cq UD qp is NULL\n");
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_RES_UD_V2_CQE_TYPE_MASK;
cqe->length = le32_to_cpu((hwcqe->length & CQ_RES_UD_V2_LENGTH_MASK));
cqe->cfa_meta = le16_to_cpu(hwcqe->cfa_metadata0);
cqe->cfa_meta |= (((le32_to_cpu(hwcqe->src_qp_high_srq_or_rq_wr_id) &
CQ_RES_UD_V2_CFA_METADATA1_MASK) >>
CQ_RES_UD_V2_CFA_METADATA1_SFT) <<
BNXT_QPLIB_META1_SHIFT);
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;
smac = (u16 *)cqe->smac;
smac[2] = ntohs(le16_to_cpu(hwcqe->src_mac[0]));
smac[1] = ntohs(le16_to_cpu(hwcqe->src_mac[1]));
smac[0] = ntohs(le16_to_cpu(hwcqe->src_mac[2]));
wr_id_idx = le32_to_cpu(hwcqe->src_qp_high_srq_or_rq_wr_id)
& CQ_RES_UD_V2_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_V2_SRC_QP_HIGH_MASK) >> 8);
if (cqe->flags & CQ_RES_UD_V2_FLAGS_SRQ) {
srq = qp->srq;
if (!srq) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: SRQ used but not defined??\n");
return -EINVAL;
}
if (wr_id_idx > srq->hwq.depth - 1) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process UD \n");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: wr_id idx 0x%x exceeded SRQ max 0x%x\n",
wr_id_idx, srq->hwq.depth);
return -EINVAL;
}
cqe->wr_id = srq->swq[wr_id_idx].wr_id;
bnxt_qplib_release_srqe(srq, wr_id_idx);
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed UD SRQ wr_id[%d] = 0x%llx\n",
wr_id_idx, cqe->wr_id);
cqe++;
(*budget)--;
*pcqe = cqe;
} else {
rq = &qp->rq;
if (wr_id_idx > (rq->max_wqe - 1)) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process UD \n");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: wr_id idx 0x%x exceeded RQ max 0x%x\n",
wr_id_idx, rq->hwq.depth);
return -EINVAL;
}
if (rq->swq_last != wr_id_idx)
return -EINVAL;
cqe->wr_id = rq->swq[rq->swq_last].wr_id;
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed UD RQ wr_id[%d] = 0x%llx\n",
rq->swq_last, cqe->wr_id);
cqe++;
(*budget)--;
bnxt_qplib_hwq_incr_cons(rq->hwq.depth, &rq->hwq.cons,
rq->swq[rq->swq_last].slots,
&rq->dbinfo.flags);
rq->swq_last = rq->swq[rq->swq_last].next_idx;
*pcqe = cqe;
if (hwcqe->status != CQ_RES_UD_V2_STATUS_OK)
bnxt_qplib_mark_qp_error(qp);
}
done:
return rc;
}
bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq)
{
struct cq_base *hw_cqe;
unsigned long flags;
bool rc = true;
spin_lock_irqsave(&cq->hwq.lock, flags);
hw_cqe = bnxt_qplib_get_qe(&cq->hwq, cq->hwq.cons, NULL);
rc = !CQE_CMP_VALID(hw_cqe, cq->dbinfo.flags);
spin_unlock_irqrestore(&cq->hwq.lock, flags);
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 *)le64_to_cpu(hwcqe->qp_handle);
if (!qp) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: process_cq Raw/QP1 qp is NULL\n");
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) {
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);
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: raweth_qp1_flags = 0x%x raweth_qp1_flags2 = 0x%x\n",
cqe->raweth_qp1_flags, cqe->raweth_qp1_flags2);
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??\n");
return -EINVAL;
}
if (wr_id_idx > srq->hwq.depth - 1) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process Raw/QP1 \n");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: wr_id idx 0x%x exceeded SRQ max 0x%x\n",
wr_id_idx, srq->hwq.depth);
return -EINVAL;
}
cqe->wr_id = srq->swq[wr_id_idx].wr_id;
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed Raw/QP1 SRQ \n");
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: wr_id[%d] = 0x%llx with status = 0x%x\n",
wr_id_idx, cqe->wr_id, hwcqe->status);
cqe++;
(*budget)--;
srq->hwq.cons++;
*pcqe = cqe;
} else {
rq = &qp->rq;
if (wr_id_idx > (rq->max_wqe - 1)) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process Raw/QP1 RQ wr_id \n");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: ix 0x%x exceeded RQ max 0x%x\n",
wr_id_idx, rq->max_wqe);
return -EINVAL;
}
if (wr_id_idx != rq->swq_last)
return -EINVAL;
cqe->wr_id = rq->swq[rq->swq_last].wr_id;
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed Raw/QP1 RQ \n");
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: wr_id[%d] = 0x%llx with status = 0x%x\n",
wr_id_idx, cqe->wr_id, hwcqe->status);
cqe++;
(*budget)--;
bnxt_qplib_hwq_incr_cons(rq->hwq.depth, &rq->hwq.cons,
rq->swq[wr_id_idx].slots,
&rq->dbinfo.flags);
rq->swq_last = rq->swq[rq->swq_last].next_idx;
*pcqe = cqe;
if (hwcqe->status != CQ_RES_RC_STATUS_OK)
bnxt_qplib_mark_qp_error(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_q *sq, *rq;
struct bnxt_qplib_cqe *cqe;
struct bnxt_qplib_qp *qp;
u32 swq_last;
u32 cqe_cons;
int rc = 0;
if (hwcqe->status != CQ_TERMINAL_STATUS_OK)
dev_warn(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process Terminal Error status = 0x%x\n",
hwcqe->status);
qp = (struct bnxt_qplib_qp *)le64_to_cpu(hwcqe->qp_handle);
if (!qp)
return -EINVAL;
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process terminal for qp (0x%x)\n", qp->id);
bnxt_qplib_mark_qp_error(qp);
sq = &qp->sq;
rq = &qp->rq;
cqe_cons = le16_to_cpu(hwcqe->sq_cons_idx);
if (cqe_cons == 0xFFFF)
goto do_rq;
cqe_cons %= sq->max_sw_wqe;
if (qp->sq.flushed) {
dev_dbg(&cq->hwq.pdev->dev,
"%s: QPLIB: QP in Flush QP = %p\n", __func__, qp);
goto sq_done;
}
cqe = *pcqe;
while (*budget) {
swq_last = sq->swq_last;
if (swq_last == cqe_cons)
break;
if (sq->swq[swq_last].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)qp;
cqe->src_qp = qp->id;
cqe->wr_id = sq->swq[swq_last].wr_id;
cqe->type = sq->swq[swq_last].type;
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed terminal Req \n");
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: wr_id[%d] = 0x%llx with status 0x%x\n",
swq_last, cqe->wr_id, cqe->status);
cqe++;
(*budget)--;
}
bnxt_qplib_hwq_incr_cons(sq->hwq.depth, &sq->hwq.cons,
sq->swq[swq_last].slots,
&sq->dbinfo.flags);
sq->swq_last = sq->swq[swq_last].next_idx;
}
*pcqe = cqe;
if (!*budget && swq_last != cqe_cons) {
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->max_wqe - 1)) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Processed terminal \n");
dev_err(&cq->hwq.pdev->dev,
"QPLIB: reported rq_cons_idx 0x%x exceeds max 0x%x\n",
cqe_cons, rq->hwq.depth);
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 rq_done;
}
rq_done:
done:
return rc;
}
static int bnxt_qplib_cq_process_cutoff(struct bnxt_qplib_cq *cq,
struct cq_cutoff *hwcqe)
{
if (hwcqe->status != CQ_CUTOFF_STATUS_OK) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process Cutoff Error status = 0x%x\n",
hwcqe->status);
return -EINVAL;
}
clear_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags);
wake_up_interruptible(&cq->waitq);
dev_dbg(&cq->hwq.pdev->dev, "QPLIB: FP: CQ Processed Cutoff\n");
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\n",
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\n",
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;
u32 hw_polled = 0;
int budget, rc = 0;
u8 type;
budget = num_cqes;
while (budget) {
hw_cqe = bnxt_qplib_get_qe(&cq->hwq, cq->hwq.cons, NULL);
if (!CQE_CMP_VALID(hw_cqe, cq->dbinfo.flags))
break;
dma_rmb();
type = hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
switch (type) {
case CQ_BASE_CQE_TYPE_REQ:
rc = bnxt_qplib_cq_process_req(cq,
(struct cq_req *)hw_cqe, &cqe, &budget,
cq->hwq.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_v2 *)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);
goto exit;
default:
dev_err(&cq->hwq.pdev->dev,
"QPLIB: process_cq unknown type 0x%x\n",
hw_cqe->cqe_type_toggle &
CQ_BASE_CQE_TYPE_MASK);
rc = -EINVAL;
break;
}
if (rc < 0) {
dev_dbg(&cq->hwq.pdev->dev,
"QPLIB: process_cqe rc = 0x%x\n", rc);
if (rc == -EAGAIN)
break;
if (type != CQ_BASE_CQE_TYPE_TERMINAL)
dev_err(&cq->hwq.pdev->dev,
"QPLIB: process_cqe error rc = 0x%x\n",
rc);
}
hw_polled++;
bnxt_qplib_hwq_incr_cons(cq->hwq.depth, &cq->hwq.cons,
1, &cq->dbinfo.flags);
}
if (hw_polled)
bnxt_qplib_ring_db(&cq->dbinfo, DBC_DBC_TYPE_CQ);
exit:
return num_cqes - budget;
}
void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
{
cq->dbinfo.toggle = cq->toggle;
if (arm_type)
bnxt_qplib_ring_db(&cq->dbinfo, arm_type);
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);
}
