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RDMA/bnxt_re: Get the toggle bits from CQ completions

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Get the toggle bits from CQ completions. For older adapters
these values are 0.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1701946060-13931-5-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Selvin Xavier 2023-12-07 02:47:38 -08:00 • committed by Leon Romanovsky
parent 880a5dd188
commit 6027c20dad
3 changed files with 8 additions and 0 deletions
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6
drivers/infiniband/hw/bnxt_re/qplib_fp.c
View file

@ -330,6 +330,9 @@ static void bnxt_qplib_service_nq(struct tasklet_struct *t)
cq = (struct bnxt_qplib_cq *)(unsigned long)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);
@ -2124,6 +2127,8 @@ int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
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;
bnxt_qplib_armen_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMENA);
@ -3018,6 +3023,7 @@ exit:
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);
/* Using cq->arm_state variable to track whether to issue cq handler */

1
drivers/infiniband/hw/bnxt_re/qplib_fp.h
View file

@ -418,6 +418,7 @@ struct bnxt_qplib_cq {
bool resize_in_progress;
struct bnxt_qplib_sg_info sg_info;
u64 cq_handle;
u8 toggle;
#define CQ_RESIZE_WAIT_TIME_MS 500
unsigned long flags;

1
drivers/infiniband/hw/bnxt_re/qplib_res.h
View file

@ -190,6 +190,7 @@ struct bnxt_qplib_db_info {
u32 xid;
u32 max_slot;
u32 flags;
u8 toggle;
};
enum bnxt_qplib_db_info_flags_mask {