netdev - [net-next 12/16] ice: flush Tx pipe on disable queue timeout

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Message-Id: <20190225184306.13505-13-jeffrey.t.kirsher@intel.com>
Date:   Mon, 25 Feb 2019 10:43:02 -0800
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Victor Raj <victor.raj@...el.com>, netdev@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com,
        Bruce Allan <bruce.w.allan@...el.com>,
        Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>,
        Andrew Bowers <andrewx.bowers@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 12/16] ice: flush Tx pipe on disable queue timeout

From: Victor Raj <victor.raj@...el.com>

Set the flush Tx pipe flag instead of getting an EAGAIN error when FW
times out in processing the disable Tx queue command.

Signed-off-by: Victor Raj <victor.raj@...el.com>
Reviewed-by: Bruce Allan <bruce.w.allan@...el.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_common.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index b17ade424423..63f003441300 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -2450,6 +2450,7 @@ ice_aq_dis_lan_txq(struct ice_hw *hw, u8 num_qgrps,
 {
 	struct ice_aqc_dis_txqs *cmd;
 	struct ice_aq_desc desc;
+	enum ice_status status;
 	u16 i, sz = 0;
 
 	cmd = &desc.params.dis_txqs;
@@ -2485,6 +2486,8 @@ ice_aq_dis_lan_txq(struct ice_hw *hw, u8 num_qgrps,
 		break;
 	}
 
+	/* flush pipe on time out */
+	cmd->cmd_type |= ICE_AQC_Q_DIS_CMD_FLUSH_PIPE;
 	/* If no queue group info, we are in a reset flow. Issue the AQ */
 	if (!qg_list)
 		goto do_aq;
@@ -2510,7 +2513,17 @@ ice_aq_dis_lan_txq(struct ice_hw *hw, u8 num_qgrps,
 		return ICE_ERR_PARAM;
 
 do_aq:
-	return ice_aq_send_cmd(hw, &desc, qg_list, buf_size, cd);
+	status = ice_aq_send_cmd(hw, &desc, qg_list, buf_size, cd);
+	if (status) {
+		if (!qg_list)
+			ice_debug(hw, ICE_DBG_SCHED, "VM%d disable failed %d\n",
+				  vmvf_num, hw->adminq.sq_last_status);
+		else
+			ice_debug(hw, ICE_DBG_SCHED, "disable Q %d failed %d\n",
+				  le16_to_cpu(qg_list[0].q_id[0]),
+				  hw->adminq.sq_last_status);
+	}
+	return status;
 }
 
 /* End of FW Admin Queue command wrappers */
@@ -2796,8 +2809,12 @@ ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u8 num_qgrps,
 
 	/* add the lan q */
 	status = ice_aq_add_lan_txq(hw, num_qgrps, buf, buf_size, cd);
-	if (status)
+	if (status) {
+		ice_debug(hw, ICE_DBG_SCHED, "enable Q %d failed %d\n",
+			  le16_to_cpu(buf->txqs[0].txq_id),
+			  hw->adminq.sq_last_status);
 		goto ena_txq_exit;
+	}
 
 	node.node_teid = buf->txqs[0].q_teid;
 	node.data.elem_type = ICE_AQC_ELEM_TYPE_LEAF;
-- 
2.20.1