RDMA/bnxt_re: Enhance RoCE SRIOV resource configuration design

Refine RoCE SRIOV resource configuration design,
using the INITIALIZE_FW's flag as an indication
for the new design to the firmware. RoCE driver does not
have to provision resources to VF when firmware
advertises support for RoCE resource management by NIC driver.

Signed-off-by: Bhargava Chenna Marreddy <[email protected]>
Signed-off-by: Kalesh AP <[email protected]>
Reviewed-by: Vikas Gupta <[email protected]>
Reviewed-by: Selvin Xavier <[email protected]>
CC: Michael Chan <[email protected]>
Signed-off-by: Selvin Xavier <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>

1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 4127227a9447..dd528dd63d53 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -184,6 +184,7 @@ static int bnxt_re_setup_chip_ctx(struct bnxt_re_dev *rdev)
 	rdev->rcfw.res = &rdev->qplib_res;
 	rdev->qplib_res.dattr = &rdev->dev_attr;
 	rdev->qplib_res.is_vf = BNXT_EN_VF(en_dev);
+	rdev->qplib_res.en_dev = en_dev;
 
 	bnxt_re_set_drv_mode(rdev);
 
@@ -285,6 +286,10 @@ static void bnxt_re_set_resource_limits(struct bnxt_re_dev *rdev)
 
 static void bnxt_re_vf_res_config(struct bnxt_re_dev *rdev)
 {
+	/*
+	 * Use the total VF count since the actual VF count may not be
+	 * available at this point.
+	 */
 	rdev->num_vfs = pci_sriov_get_totalvfs(rdev->en_dev->pdev);
 	if (!bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx)) {
 		bnxt_re_set_resource_limits(rdev);
@@ -2056,11 +2061,9 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 op_type)
 		INIT_DELAYED_WORK(&rdev->worker, bnxt_re_worker);
 		set_bit(BNXT_RE_FLAG_QOS_WORK_REG, &rdev->flags);
 		schedule_delayed_work(&rdev->worker, msecs_to_jiffies(30000));
-		/*
-		 * Use the total VF count since the actual VF count may not be
-		 * available at this point.
-		 */
-		bnxt_re_vf_res_config(rdev);
+
+		if (!(rdev->qplib_res.en_dev->flags & BNXT_EN_FLAG_ROCE_VF_RES_MGMT))
+			bnxt_re_vf_res_config(rdev);
 	}
 	hash_init(rdev->cq_hash);
 	if (rdev->chip_ctx->modes.toggle_bits & BNXT_QPLIB_SRQ_TOGGLE_BIT)