[dpdk-stable] [PATCH 18.11 2/4] net/bnxt: fix probe in FreeBSD

[Somnath Kotur <somnath.kotur@broadcom.com>]

From: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>

In FreeBSD environment, nic_uio driver does not support interrupts
and rte_intr_callback_register() will fail to register interrupts
which in turn causes bnxt driver probe failure.

Fixed driver to ignore interrupt callback failures in FreeBSD.

Fixes: 6de4c538b393 ("net/bnxt: fix error handling in port start")
Fixes: 43f78b380f89 ("net/bnxt: retry IRQ callback deregistration")

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Santoshkumar Karanappa Rastapur <santosh.rastapur@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
---
 drivers/net/bnxt/bnxt_ethdev.c | 3 +++
 drivers/net/bnxt/bnxt_irq.c    | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 878b9f5..f222c79 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -342,8 +342,11 @@ static int bnxt_init_chip(struct bnxt *bp)
 
 	/* enable uio/vfio intr/eventfd mapping */
 	rc = rte_intr_enable(intr_handle);
+#ifndef RTE_EXEC_ENV_FREEBSD
+	/* In FreeBSD OS, nic_uio driver does not support interrupts */
 	if (rc)
 		goto err_free;
+#endif
 
 	rc = bnxt_get_hwrm_link_config(bp, &new);
 	if (rc) {
diff --git a/drivers/net/bnxt/bnxt_irq.c b/drivers/net/bnxt/bnxt_irq.c
index 57365d7..b5f30bb 100644
--- a/drivers/net/bnxt/bnxt_irq.c
+++ b/drivers/net/bnxt/bnxt_irq.c
@@ -152,6 +152,13 @@ int bnxt_request_int(struct bnxt *bp)
 		if (!rc)
 			irq->requested = 1;
 	}
+	#ifdef RTE_EXEC_ENV_FREEBSD
+	/**
+	 * In FreeBSD OS, nic_uio does not support interrupts and
+	 * interrupt register callback will fail.
+	 */
+	rc = 0;
+	#endif
 
 	return rc;
 }
-- 
1.8.3.1