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From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
To: davem@davemloft.net
Cc: Marcin Formela <marcin.formela@intel.com>,
	netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com,
	Andrew Bowers <andrewx.bowers@intel.com>,
	Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Subject: [net-next 15/15] i40e: fix retrying in i40e_aq_get_phy_capabilities
Date: Wed, 21 Aug 2019 13:16:23 -0700	[thread overview]
Message-ID: <20190821201623.5506-16-jeffrey.t.kirsher@intel.com> (raw)
In-Reply-To: <20190821201623.5506-1-jeffrey.t.kirsher@intel.com>

From: Marcin Formela <marcin.formela@intel.com>

Fixed a bug where driver was breaking out of the loop and
reporting an error without retrying first.

Signed-off-by: Marcin Formela <marcin.formela@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index de996a80013e..46e649c09f72 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -1577,19 +1577,22 @@ i40e_status i40e_aq_get_phy_capabilities(struct i40e_hw *hw,
 		status = i40e_asq_send_command(hw, &desc, abilities,
 					       abilities_size, cmd_details);
 
-		if (status)
-			break;
-
-		if (hw->aq.asq_last_status == I40E_AQ_RC_EIO) {
+		switch (hw->aq.asq_last_status) {
+		case I40E_AQ_RC_EIO:
 			status = I40E_ERR_UNKNOWN_PHY;
 			break;
-		} else if (hw->aq.asq_last_status == I40E_AQ_RC_EAGAIN) {
+		case I40E_AQ_RC_EAGAIN:
 			usleep_range(1000, 2000);
 			total_delay++;
 			status = I40E_ERR_TIMEOUT;
+			break;
+		/* also covers I40E_AQ_RC_OK */
+		default:
+			break;
 		}
-	} while ((hw->aq.asq_last_status != I40E_AQ_RC_OK) &&
-		 (total_delay < max_delay));
+
+	} while ((hw->aq.asq_last_status == I40E_AQ_RC_EAGAIN) &&
+		(total_delay < max_delay));
 
 	if (status)
 		return status;
-- 
2.21.0


  parent reply	other threads:[~2019-08-21 20:16 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-21 20:16 [net-next 00/15][pull request] 40GbE Intel Wired LAN Driver Updates 2019-08-21 Jeff Kirsher
2019-08-21 20:16 ` [net-next 01/15] i40e: reduce stack usage in i40e_set_fc Jeff Kirsher
2019-08-21 20:16 ` [net-next 02/15] i40e: Check if transceiver implements DDM before access Jeff Kirsher
2019-08-21 20:16 ` [net-next 03/15] i40e: add check on i40e_configure_tx_ring() return value Jeff Kirsher
2019-08-21 20:16 ` [net-next 04/15] i40e: fix shifts of signed values Jeff Kirsher
2019-08-21 20:16 ` [net-next 05/15] i40e: Add drop mode parameter to set mac config Jeff Kirsher
2019-08-21 20:16 ` [net-next 06/15] i40e: check_recovery_mode had wrong if statement Jeff Kirsher
2019-08-21 20:16 ` [net-next 07/15] i40e: Update x710 FW API version to 1.9 Jeff Kirsher
2019-08-21 20:16 ` [net-next 08/15] i40e: reset veb.tc_stats when resetting veb.stats Jeff Kirsher
2019-08-21 20:16 ` [net-next 09/15] i40e: Update x722 FW API version to 1.9 Jeff Kirsher
2019-08-21 20:16 ` [net-next 10/15] i40e: Fix crash caused by stress setting of VF MAC addresses Jeff Kirsher
2019-08-21 20:16 ` [net-next 11/15] i40e: Remove function i40e_update_dcb_config() Jeff Kirsher
2019-08-21 20:16 ` [net-next 12/15] i40e: make i40e_set_mac_type() public Jeff Kirsher
2019-08-21 20:16 ` [net-next 13/15] i40e: allow reset in recovery mode Jeff Kirsher
2019-08-21 20:16 ` [net-next 14/15] i40e: Persistent LLDP support Jeff Kirsher
2019-08-21 20:16 ` Jeff Kirsher [this message]
2019-08-21 21:31 ` [net-next 00/15][pull request] 40GbE Intel Wired LAN Driver Updates 2019-08-21 Jakub Kicinski
2019-08-21 22:55   ` David Miller

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