RDMA/bnxt_re: Query function capabilities from firmware

Query Function capabilities to enable advanced features.

Link: https://lore.kernel.org/r/1686679943-17117-5-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/bnxt_re/main.c

@@ -83,6 +83,7 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier,
 				unsigned long event, void *ptr);
 static struct bnxt_re_dev *bnxt_re_from_netdev(struct net_device *netdev);
 static void bnxt_re_dev_uninit(struct bnxt_re_dev *rdev);
+static int bnxt_re_hwrm_qcaps(struct bnxt_re_dev *rdev);
 
 static void bnxt_re_set_drv_mode(struct bnxt_re_dev *rdev, u8 mode)
 {
@@ -91,6 +92,9 @@ static void bnxt_re_set_drv_mode(struct bnxt_re_dev *rdev, u8 mode)
 	cctx = rdev->chip_ctx;
 	cctx->modes.wqe_mode = bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx) ?
 			       mode : BNXT_QPLIB_WQE_MODE_STATIC;
+	if (bnxt_re_hwrm_qcaps(rdev))
+		dev_err(rdev_to_dev(rdev),
+			"Failed to query hwrm qcaps\n");
 }
 
 static void bnxt_re_destroy_chip_ctx(struct bnxt_re_dev *rdev)
@@ -339,6 +343,23 @@ static void bnxt_re_fill_fw_msg(struct bnxt_fw_msg *fw_msg, void *msg,
 	fw_msg->timeout = timeout;
 }
 
+/* Query function capabilities using common hwrm */
+int bnxt_re_hwrm_qcaps(struct bnxt_re_dev *rdev)
+{
+	struct bnxt_en_dev *en_dev = rdev->en_dev;
+	struct hwrm_func_qcaps_output resp = {};
+	struct hwrm_func_qcaps_input req = {};
+	struct bnxt_qplib_chip_ctx *cctx;
+	struct bnxt_fw_msg fw_msg = {};
+
+	cctx = rdev->chip_ctx;
+	bnxt_re_init_hwrm_hdr((void *)&req, HWRM_FUNC_QCAPS);
+	req.fid = cpu_to_le16(0xffff);
+	bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
+			    sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
+	return bnxt_send_msg(en_dev, &fw_msg);
+}
+
 static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev,
 				 u16 fw_ring_id, int type)
 {