From b936136da2223be28452162c3dd22c664a8c7f16 Mon Sep 17 00:00:00 2001
From: Jeff Kirsher
Date: Thu, 13 Mar 2014 16:07:14 -0700
Subject: igb: Fix code comment

Recently added code comment was missing a space that is needed.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 340a3449e1e9..ea8b9c41cf9f 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1978,7 +1978,7 @@ void igb_reset(struct igb_adapter *adapter)
 		}
 	}
 #endif
-	/*Re-establish EEE setting */
+	/* Re-establish EEE setting */
 	if (hw->phy.media_type == e1000_media_type_copper) {
 		switch (mac->type) {
 		case e1000_i350:
-- 
cgit v1.2.3-55-g7522


From a48665970962a9b50aa81722ca4e943fcfdc6699 Mon Sep 17 00:00:00 2001
From: Shannon Nelson
Date: Tue, 11 Feb 2014 08:24:07 +0000
Subject: i40e: delete netdev after deleting napi and vectors

We've been deleting the netdev before getting around to deleting the napi
structs.  Unfortunately, we then didn't delete the napi structs because we
have a check for netdev, thus we were leaving garbage around in the system.

Change-ID: Ife540176f6c9f801147495b3f2d2ac2e61ddcc58
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 43d391bb65c4..a3f122eb9f7e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -6806,8 +6806,6 @@ int i40e_vsi_release(struct i40e_vsi *vsi)
 			if (vsi->netdev) {
 				/* results in a call to i40e_close() */
 				unregister_netdev(vsi->netdev);
-				free_netdev(vsi->netdev);
-				vsi->netdev = NULL;
 			}
 		} else {
 			if (!test_and_set_bit(__I40E_DOWN, &vsi->state))
@@ -6826,6 +6824,10 @@ int i40e_vsi_release(struct i40e_vsi *vsi)
 
 	i40e_vsi_delete(vsi);
 	i40e_vsi_free_q_vectors(vsi);
+	if (vsi->netdev) {
+		free_netdev(vsi->netdev);
+		vsi->netdev = NULL;
+	}
 	i40e_vsi_clear_rings(vsi);
 	i40e_vsi_clear(vsi);
 
-- 
cgit v1.2.3-55-g7522


From 43fddb7576fbd543502b01f0c09a3a4171f7e038 Mon Sep 17 00:00:00 2001
From: Anjali Singhai Jain
Date: Tue, 11 Feb 2014 08:24:09 +0000
Subject: i40e: Fix a bug in the update logic for FDIR SB filter.

The update filter logic was causing a kernel panic in the original code.
We need to compare the input set to decide whether or not to delete a
filter since we do not have a hash stored. This new design helps fix the issue.

Change-ID: I2462b108e58ca4833312804cda730b4660cc18c9
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 27 +++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index d34ff31fddd8..718a3e0f7de4 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1356,6 +1356,24 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
 	return 0;
 }
 
+/**
+ * i40e_match_fdir_input_set - Match a new filter against an existing one
+ * @rule: The filter already added
+ * @input: The new filter to comapre against
+ *
+ * Returns true if the two input set match
+ **/
+static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
+				      struct i40e_fdir_filter *input)
+{
+	if ((rule->dst_ip[0] != input->dst_ip[0]) ||
+	    (rule->src_ip[0] != input->src_ip[0]) ||
+	    (rule->dst_port != input->dst_port) ||
+	    (rule->src_port != input->src_port))
+		return false;
+	return true;
+}
+
 /**
  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
  * @vsi: Pointer to the targeted VSI
@@ -1391,11 +1409,10 @@ static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
 
 	/* if there is an old rule occupying our place remove it */
 	if (rule && (rule->fd_id == sw_idx)) {
-		if (!input || (rule->fd_id != input->fd_id)) {
-			cmd->fs.flow_type = rule->flow_type;
-			err = i40e_add_del_fdir_ethtool(vsi, cmd, false);
-		}
-
+		if (input && !i40e_match_fdir_input_set(rule, input))
+			err = i40e_add_del_fdir(vsi, rule, false);
+		else if (!input)
+			err = i40e_add_del_fdir(vsi, rule, false);
 		hlist_del(&rule->fdir_node);
 		kfree(rule);
 		pf->fdir_pf_active_filters--;
-- 
cgit v1.2.3-55-g7522


From 77e29bc6fc814a2283c9dda07d24f2efb53d585c Mon Sep 17 00:00:00 2001
From: Anjali Singhai Jain
Date: Tue, 11 Feb 2014 08:24:11 +0000
Subject: i40e/i40evf: Some flow director HW definition fixes

1) Fix a name of the error bit to correctly indicate the error.
2) Added a fd_id field in the 32 byte desc at the place(qw0) where it gets
reported in the programming error desc WB. In a normal data desc
the fd_id field is reported in qw3.

Change-ID: Ide9a24bff7273da5889c36635d629bc3b5212010
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_type.h   | 6 +++++-
 drivers/net/ethernet/intel/i40evf/i40e_type.h | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 181a825d3160..5c902f448b1d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -458,6 +458,10 @@ union i40e_32byte_rx_desc {
 			union {
 				__le32 rss; /* RSS Hash */
 				__le32 fcoe_param; /* FCoE DDP Context id */
+				/* Flow director filter id in case of
+				 * Programming status desc WB
+				 */
+				__le32 fd_id;
 			} hi_dword;
 		} qword0;
 		struct {
@@ -698,7 +702,7 @@ enum i40e_rx_prog_status_desc_prog_id_masks {
 enum i40e_rx_prog_status_desc_error_bits {
 	/* Note: These are predefined bit offsets */
 	I40E_RX_PROG_STATUS_DESC_FD_TBL_FULL_SHIFT	= 0,
-	I40E_RX_PROG_STATUS_DESC_NO_FD_QUOTA_SHIFT	= 1,
+	I40E_RX_PROG_STATUS_DESC_NO_FD_ENTRY_SHIFT	= 1,
 	I40E_RX_PROG_STATUS_DESC_FCOE_TBL_FULL_SHIFT	= 2,
 	I40E_RX_PROG_STATUS_DESC_FCOE_CONFLICT_SHIFT	= 3
 };
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index 092aace2a76c..7189d6f08ddd 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -464,6 +464,10 @@ union i40e_32byte_rx_desc {
 			union {
 				__le32 rss; /* RSS Hash */
 				__le32 fcoe_param; /* FCoE DDP Context id */
+				/* Flow director filter id in case of
+				 * Programming status desc WB
+				 */
+				__le32 fd_id;
 			} hi_dword;
 		} qword0;
 		struct {
@@ -704,7 +708,7 @@ enum i40e_rx_prog_status_desc_prog_id_masks {
 enum i40e_rx_prog_status_desc_error_bits {
 	/* Note: These are predefined bit offsets */
 	I40E_RX_PROG_STATUS_DESC_FD_TBL_FULL_SHIFT	= 0,
-	I40E_RX_PROG_STATUS_DESC_NO_FD_QUOTA_SHIFT	= 1,
+	I40E_RX_PROG_STATUS_DESC_NO_FD_ENTRY_SHIFT	= 1,
 	I40E_RX_PROG_STATUS_DESC_FCOE_TBL_FULL_SHIFT	= 2,
 	I40E_RX_PROG_STATUS_DESC_FCOE_CONFLICT_SHIFT	= 3
 };
-- 
cgit v1.2.3-55-g7522


From f29eaa3d08d4f0740256253cc6f5d6c7486a3c17 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg
Date: Tue, 11 Feb 2014 08:24:12 +0000
Subject: i40e: make string references to q be queue

This cleans up strings for consistency, q is replaced with queue.

Change-ID: Ia5f9dfae9af261f4c24485854264e02363729cf3
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index a3f122eb9f7e..acf0b20a57bc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2582,7 +2582,7 @@ static void i40e_configure_msi_and_legacy(struct i40e_vsi *vsi)
 	/* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
 	wr32(hw, I40E_PFINT_LNKLST0, 0);
 
-	/* Associate the queue pair to the vector and enable the q int */
+	/* Associate the queue pair to the vector and enable the queue int */
 	val = I40E_QINT_RQCTL_CAUSE_ENA_MASK		      |
 	      (I40E_RX_ITR << I40E_QINT_RQCTL_ITR_INDX_SHIFT) |
 	      (I40E_QUEUE_TYPE_TX << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT);
@@ -5442,7 +5442,7 @@ static void i40e_handle_mdd_event(struct i40e_pf *pf)
 		u8 queue = (reg & I40E_GL_MDET_TX_QUEUE_MASK)
 				>> I40E_GL_MDET_TX_QUEUE_SHIFT;
 		dev_info(&pf->pdev->dev,
-			 "Malicious Driver Detection TX event 0x%02x on q %d of function 0x%02x\n",
+			 "Malicious Driver Detection event 0x%02x on TX queue %d of function 0x%02x\n",
 			 event, queue, func);
 		wr32(hw, I40E_GL_MDET_TX, 0xffffffff);
 		mdd_detected = true;
@@ -5456,7 +5456,7 @@ static void i40e_handle_mdd_event(struct i40e_pf *pf)
 		u8 queue = (reg & I40E_GL_MDET_RX_QUEUE_MASK)
 				>> I40E_GL_MDET_RX_QUEUE_SHIFT;
 		dev_info(&pf->pdev->dev,
-			 "Malicious Driver Detection RX event 0x%02x on q %d of function 0x%02x\n",
+			 "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
 			 event, queue, func);
 		wr32(hw, I40E_GL_MDET_RX, 0xffffffff);
 		mdd_detected = true;
@@ -6882,8 +6882,7 @@ static int i40e_vsi_setup_vectors(struct i40e_vsi *vsi)
 	}
 
 	if (vsi->base_vector) {
-		dev_info(&pf->pdev->dev,
-			 "VSI %d has non-zero base vector %d\n",
+		dev_info(&pf->pdev->dev, "VSI %d has non-zero base vector %d\n",
 			 vsi->seid, vsi->base_vector);
 		return -EEXIST;
 	}
@@ -6902,7 +6901,7 @@ static int i40e_vsi_setup_vectors(struct i40e_vsi *vsi)
 						 vsi->num_q_vectors, vsi->idx);
 	if (vsi->base_vector < 0) {
 		dev_info(&pf->pdev->dev,
-			 "failed to get q tracking for VSI %d, err=%d\n",
+			 "failed to get queue tracking for VSI %d, err=%d\n",
 			 vsi->seid, vsi->base_vector);
 		i40e_vsi_free_q_vectors(vsi);
 		ret = -ENOENT;
-- 
cgit v1.2.3-55-g7522


From 69bfb110fd58185df99a7dbe92a14c0d7ada764f Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg
Date: Tue, 11 Feb 2014 08:24:13 +0000
Subject: i40e: cleanup strings

This patch cleans up the strings that the driver prints during normal
operation and moves many strings into dev_dbg.  It also cleans up
strings printed during reset.

Change-ID: I1835cc4e3c3b22596182b683284e6bb87eac61b2
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c |  8 ++---
 drivers/net/ethernet/intel/i40e/i40e_main.c    | 47 +++++++++++---------------
 2 files changed, 24 insertions(+), 31 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 57fc86496f30..47b9754d1e8e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1467,19 +1467,19 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 				 pf->msg_enable);
 		}
 	} else if (strncmp(cmd_buf, "pfr", 3) == 0) {
-		dev_info(&pf->pdev->dev, "forcing PFR\n");
+		dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
 		i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
 
 	} else if (strncmp(cmd_buf, "corer", 5) == 0) {
-		dev_info(&pf->pdev->dev, "forcing CoreR\n");
+		dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
 		i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
 
 	} else if (strncmp(cmd_buf, "globr", 5) == 0) {
-		dev_info(&pf->pdev->dev, "forcing GlobR\n");
+		dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
 		i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
 
 	} else if (strncmp(cmd_buf, "empr", 4) == 0) {
-		dev_info(&pf->pdev->dev, "forcing EMPR\n");
+		dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
 		i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
 
 	} else if (strncmp(cmd_buf, "read", 4) == 0) {
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index acf0b20a57bc..f7b1753ac565 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3755,8 +3755,8 @@ static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc,
 					  NULL);
 	if (aq_ret) {
 		dev_info(&vsi->back->pdev->dev,
-			 "%s: AQ command Config VSI BW allocation per TC failed = %d\n",
-			 __func__, vsi->back->hw.aq.asq_last_status);
+			 "AQ command Config VSI BW allocation per TC failed = %d\n",
+			 vsi->back->hw.aq.asq_last_status);
 		return -EINVAL;
 	}
 
@@ -4364,7 +4364,7 @@ void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags)
 		 * for the warning interrupt will deal with the shutdown
 		 * and recovery of the switch setup.
 		 */
-		dev_info(&pf->pdev->dev, "GlobalR requested\n");
+		dev_dbg(&pf->pdev->dev, "GlobalR requested\n");
 		val = rd32(&pf->hw, I40E_GLGEN_RTRIG);
 		val |= I40E_GLGEN_RTRIG_GLOBR_MASK;
 		wr32(&pf->hw, I40E_GLGEN_RTRIG, val);
@@ -4375,7 +4375,7 @@ void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags)
 		 *
 		 * Same as Global Reset, except does *not* include the MAC/PHY
 		 */
-		dev_info(&pf->pdev->dev, "CoreR requested\n");
+		dev_dbg(&pf->pdev->dev, "CoreR requested\n");
 		val = rd32(&pf->hw, I40E_GLGEN_RTRIG);
 		val |= I40E_GLGEN_RTRIG_CORER_MASK;
 		wr32(&pf->hw, I40E_GLGEN_RTRIG, val);
@@ -4409,7 +4409,7 @@ void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags)
 		 * the switch, since we need to do all the recovery as
 		 * for the Core Reset.
 		 */
-		dev_info(&pf->pdev->dev, "PFR requested\n");
+		dev_dbg(&pf->pdev->dev, "PFR requested\n");
 		i40e_handle_reset_warning(pf);
 
 	} else if (reset_flags & (1 << __I40E_REINIT_REQUESTED)) {
@@ -4458,18 +4458,18 @@ bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
 			   &old_cfg->etscfg.prioritytable,
 			   sizeof(new_cfg->etscfg.prioritytable))) {
 			need_reconfig = true;
-			dev_info(&pf->pdev->dev, "ETS UP2TC changed.\n");
+			dev_dbg(&pf->pdev->dev, "ETS UP2TC changed.\n");
 		}
 
 		if (memcmp(&new_cfg->etscfg.tcbwtable,
 			   &old_cfg->etscfg.tcbwtable,
 			   sizeof(new_cfg->etscfg.tcbwtable)))
-			dev_info(&pf->pdev->dev, "ETS TC BW Table changed.\n");
+			dev_dbg(&pf->pdev->dev, "ETS TC BW Table changed.\n");
 
 		if (memcmp(&new_cfg->etscfg.tsatable,
 			   &old_cfg->etscfg.tsatable,
 			   sizeof(new_cfg->etscfg.tsatable)))
-			dev_info(&pf->pdev->dev, "ETS TSA Table changed.\n");
+			dev_dbg(&pf->pdev->dev, "ETS TSA Table changed.\n");
 	}
 
 	/* Check if PFC configuration has changed */
@@ -4477,7 +4477,7 @@ bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
 		   &old_cfg->pfc,
 		   sizeof(new_cfg->pfc))) {
 		need_reconfig = true;
-		dev_info(&pf->pdev->dev, "PFC config change detected.\n");
+		dev_dbg(&pf->pdev->dev, "PFC config change detected.\n");
 	}
 
 	/* Check if APP Table has changed */
@@ -4485,7 +4485,7 @@ bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
 		   &old_cfg->app,
 		   sizeof(new_cfg->app))) {
 		need_reconfig = true;
-		dev_info(&pf->pdev->dev, "APP Table change detected.\n");
+		dev_dbg(&pf->pdev->dev, "APP Table change detected.\n");
 	}
 
 	return need_reconfig;
@@ -4535,7 +4535,7 @@ static int i40e_handle_lldp_event(struct i40e_pf *pf,
 
 	/* No change detected in DCBX configs */
 	if (!memcmp(&tmp_dcbx_cfg, dcbx_cfg, sizeof(tmp_dcbx_cfg))) {
-		dev_info(&pf->pdev->dev, "No change detected in DCBX configuration.\n");
+		dev_dbg(&pf->pdev->dev, "No change detected in DCBX configuration.\n");
 		goto exit;
 	}
 
@@ -4593,8 +4593,8 @@ static void i40e_handle_lan_overflow_event(struct i40e_pf *pf,
 	struct i40e_vf *vf;
 	u16 vf_id;
 
-	dev_info(&pf->pdev->dev, "%s: Rx Queue Number = %d QTX_CTL=0x%08x\n",
-		 __func__, queue, qtx_ctl);
+	dev_dbg(&pf->pdev->dev, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
+		queue, qtx_ctl);
 
 	/* Queue belongs to VF, find the VF and issue VF reset */
 	if (((qtx_ctl & I40E_QTX_CTL_PFVF_Q_MASK)
@@ -4946,7 +4946,7 @@ static void i40e_clean_adminq_subtask(struct i40e_pf *pf)
 					event.msg_size);
 			break;
 		case i40e_aqc_opc_lldp_update_mib:
-			dev_info(&pf->pdev->dev, "ARQ: Update LLDP MIB event received\n");
+			dev_dbg(&pf->pdev->dev, "ARQ: Update LLDP MIB event received\n");
 #ifdef CONFIG_I40E_DCB
 			rtnl_lock();
 			ret = i40e_handle_lldp_event(pf, &event);
@@ -4954,7 +4954,7 @@ static void i40e_clean_adminq_subtask(struct i40e_pf *pf)
 #endif /* CONFIG_I40E_DCB */
 			break;
 		case i40e_aqc_opc_event_lan_overflow:
-			dev_info(&pf->pdev->dev, "ARQ LAN queue overflow event received\n");
+			dev_dbg(&pf->pdev->dev, "ARQ LAN queue overflow event received\n");
 			i40e_handle_lan_overflow_event(pf, &event);
 			break;
 		case i40e_aqc_opc_send_msg_to_peer:
@@ -5231,7 +5231,7 @@ static int i40e_prep_for_reset(struct i40e_pf *pf)
 	if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state))
 		return 0;
 
-	dev_info(&pf->pdev->dev, "Tearing down internal switch for reset\n");
+	dev_dbg(&pf->pdev->dev, "Tearing down internal switch for reset\n");
 
 	if (i40e_check_asq_alive(hw))
 		i40e_vc_notify_reset(pf);
@@ -5278,7 +5278,7 @@ static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit)
 
 	if (test_bit(__I40E_DOWN, &pf->state))
 		goto end_core_reset;
-	dev_info(&pf->pdev->dev, "Rebuilding internal switch\n");
+	dev_dbg(&pf->pdev->dev, "Rebuilding internal switch\n");
 
 	/* rebuild the basics for the AdminQ, HMC, and initial HW switch */
 	ret = i40e_init_adminq(&pf->hw);
@@ -5328,7 +5328,7 @@ static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit)
 	 * try to recover minimal use by getting the basic PF VSI working.
 	 */
 	if (pf->vsi[pf->lan_vsi]->uplink_seid != pf->mac_seid) {
-		dev_info(&pf->pdev->dev, "attempting to rebuild switch\n");
+		dev_dbg(&pf->pdev->dev, "attempting to rebuild switch\n");
 		/* find the one VEB connected to the MAC, and find orphans */
 		for (v = 0; v < I40E_MAX_VEB; v++) {
 			if (!pf->veb[v])
@@ -5393,7 +5393,7 @@ static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit)
 	dv.subbuild_version = 0;
 	i40e_aq_send_driver_version(&pf->hw, &dv, NULL);
 
-	dev_info(&pf->pdev->dev, "PF reset done\n");
+	dev_info(&pf->pdev->dev, "reset complete\n");
 
 end_core_reset:
 	clear_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state);
@@ -6293,12 +6293,8 @@ static int i40e_sw_init(struct i40e_pf *pf)
 	    (pf->hw.func_caps.fd_filters_best_effort > 0)) {
 		pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
 		pf->atr_sample_rate = I40E_DEFAULT_ATR_SAMPLE_RATE;
-		dev_info(&pf->pdev->dev,
-			"Flow Director ATR mode Enabled\n");
 		if (!(pf->flags & I40E_FLAG_MFP_ENABLED)) {
 			pf->flags |= I40E_FLAG_FD_SB_ENABLED;
-			dev_info(&pf->pdev->dev,
-				 "Flow Director Side Band mode Enabled\n");
 		} else {
 			dev_info(&pf->pdev->dev,
 				 "Flow Director Side Band mode Disabled in MFP mode\n");
@@ -6322,9 +6318,6 @@ static int i40e_sw_init(struct i40e_pf *pf)
 		pf->num_req_vfs = min_t(int,
 					pf->hw.func_caps.num_vfs,
 					I40E_MAX_VF_COUNT);
-		dev_info(&pf->pdev->dev,
-			 "Number of VFs being requested for PF[%d] = %d\n",
-			 pf->hw.pf_id, pf->num_req_vfs);
 	}
 #endif /* CONFIG_PCI_IOV */
 	pf->eeprom_version = 0xDEAD;
@@ -8131,7 +8124,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	i40e_set_pci_config_data(hw, link_status);
 
-	dev_info(&pdev->dev, "PCI Express: %s %s\n",
+	dev_info(&pdev->dev, "PCI-Express: %s %s\n",
 		(hw->bus.speed == i40e_bus_speed_8000 ? "Speed 8.0GT/s" :
 		 hw->bus.speed == i40e_bus_speed_5000 ? "Speed 5.0GT/s" :
 		 hw->bus.speed == i40e_bus_speed_2500 ? "Speed 2.5GT/s" :
-- 
cgit v1.2.3-55-g7522


From 0c22b3dd68a67e4046616859643a08ce44269fc3 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg
Date: Tue, 11 Feb 2014 08:24:14 +0000
Subject: i40e: simplified init string

In a similar way to how ixgbe works, print a short one-line string
showing what features and number of queues the driver and hardware has
enabled at probe time.

Example (wrapped for the commit message):
i40e 0000:06:00.1: Features: PF-id[1] VFs: 64 VSIs: 66 QP: 32 FDir RSS
ATR NTUPLE DCB

Change-ID: I177bf7f93d1c4c921529c92fdf66e614f6b4f755
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 41 +++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index f7b1753ac565..79be80871f67 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7851,6 +7851,44 @@ static int i40e_setup_pf_filter_control(struct i40e_pf *pf)
 	return 0;
 }
 
+#define INFO_STRING_LEN 255
+static void i40e_print_features(struct i40e_pf *pf)
+{
+	struct i40e_hw *hw = &pf->hw;
+	char *buf, *string;
+
+	string = kzalloc(INFO_STRING_LEN, GFP_KERNEL);
+	if (!string) {
+		dev_err(&pf->pdev->dev, "Features string allocation failed\n");
+		return;
+	}
+
+	buf = string;
+
+	buf += sprintf(string, "Features: PF-id[%d] ", hw->pf_id);
+#ifdef CONFIG_PCI_IOV
+	buf += sprintf(buf, "VFs: %d ", pf->num_req_vfs);
+#endif
+	buf += sprintf(buf, "VSIs: %d QP: %d ", pf->hw.func_caps.num_vsis,
+		       pf->vsi[pf->lan_vsi]->num_queue_pairs);
+
+	if (pf->flags & I40E_FLAG_RSS_ENABLED)
+		buf += sprintf(buf, "RSS ");
+	buf += sprintf(buf, "FDir ");
+	if (pf->flags & I40E_FLAG_FD_ATR_ENABLED)
+		buf += sprintf(buf, "ATR ");
+	if (pf->flags & I40E_FLAG_FD_SB_ENABLED)
+		buf += sprintf(buf, "NTUPLE ");
+	if (pf->flags & I40E_FLAG_DCB_ENABLED)
+		buf += sprintf(buf, "DCB ");
+	if (pf->flags & I40E_FLAG_PTP)
+		buf += sprintf(buf, "PTP ");
+
+	BUG_ON(buf > (string + INFO_STRING_LEN));
+	dev_info(&pf->pdev->dev, "%s\n", string);
+	kfree(string);
+}
+
 /**
  * i40e_probe - Device initialization routine
  * @pdev: PCI device information struct
@@ -8141,6 +8179,9 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		dev_warn(&pdev->dev, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
 	}
 
+	/* print a string summarizing features */
+	i40e_print_features(pf);
+
 	return 0;
 
 	/* Unwind what we've done if something failed in the setup */
-- 
cgit v1.2.3-55-g7522


From fdfd943e9bbbfafe8e826b57ef7bb2a6143b3fda Mon Sep 17 00:00:00 2001
From: Akeem G Abodunrin
Date: Tue, 11 Feb 2014 08:24:15 +0000
Subject: i40e: Fix function comments

Correct misleading function comment.

Change-ID: I3f66cff5cc00250a285756b6500a58fad8eba4b5
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 79be80871f67..63776ea5092c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1985,7 +1985,7 @@ static int i40e_vlan_rx_add_vid(struct net_device *netdev,
  * @netdev: network interface to be adjusted
  * @vid: vlan id to be removed
  *
- * net_device_ops implementation for adding vlan ids
+ * net_device_ops implementation for removing vlan ids
  **/
 static int i40e_vlan_rx_kill_vid(struct net_device *netdev,
 				 __always_unused __be16 proto, u16 vid)
-- 
cgit v1.2.3-55-g7522


From 61dade7e9201162cba683cff103cebbdf06655d4 Mon Sep 17 00:00:00 2001
From: Anjali Singhai Jain
Date: Tue, 11 Feb 2014 08:26:28 +0000
Subject: i40e: Define a new state variable to keep track of feature auto
 disable

This variable is a bit mask. It is needed to differentiate between
user enforced feature disables and auto disable of features due to
HW resource limitations.

Change-ID: Ib4b4f6ae1bb2668c12e482d2555100bc8ad713d5
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 838b69b74edf..a19165395b7f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -263,6 +263,9 @@ struct i40e_pf {
 #define I40E_FLAG_VXLAN_FILTER_SYNC            (u64)(1 << 27)
 #endif
 
+	/* tracks features that get auto disabled by errors */
+	u64 auto_disable_flags;
+
 	bool stat_offsets_loaded;
 	struct i40e_hw_port_stats stats;
 	struct i40e_hw_port_stats stats_offsets;
-- 
cgit v1.2.3-55-g7522


From 55a5e60b9f583f64a6c95cfe869dd2d65ae53a95 Mon Sep 17 00:00:00 2001
From: Anjali Singhai Jain
Date: Wed, 12 Feb 2014 06:33:25 +0000
Subject: i40e: Add code to handle FD table full condition

Add code to enforce the following policy:
- If the HW reports filter programming error, we check if it's due to a
  full table.
- If so, we go ahead and turn off new rule addition for ATR and then SB
  in that order.
- We monitor the programmed filter count, if enough room is created due
  to filter deletion/reset, we then re-enable SB and ATR new rule addition.

Change-ID: I69d24b29e5c45bc4fa861258e11c2fa7b8868748
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h         |  7 ++-
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 17 ++++++--
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 10 ++++-
 drivers/net/ethernet/intel/i40e/i40e_main.c    | 58 ++++++++++++++++++++++++-
 drivers/net/ethernet/intel/i40e/i40e_txrx.c    | 60 ++++++++++++++++++++++----
 5 files changed, 135 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index a19165395b7f..bd1b4690a608 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -152,7 +152,10 @@ struct i40e_lump_tracking {
 };
 
 #define I40E_DEFAULT_ATR_SAMPLE_RATE	20
-#define I40E_FDIR_MAX_RAW_PACKET_SIZE   512
+#define I40E_FDIR_MAX_RAW_PACKET_SIZE	512
+#define I40E_FDIR_BUFFER_FULL_MARGIN	10
+#define I40E_FDIR_BUFFER_HEAD_ROOM	200
+
 struct i40e_fdir_filter {
 	struct hlist_node fdir_node;
 	/* filter ipnut set */
@@ -553,6 +556,8 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
 			     struct i40e_pf *pf, bool add);
 int i40e_add_del_fdir(struct i40e_vsi *vsi,
 		      struct i40e_fdir_filter *input, bool add);
+void i40e_fdir_check_and_reenable(struct i40e_pf *pf);
+int i40e_get_current_fd_count(struct i40e_pf *pf);
 void i40e_set_ethtool_ops(struct net_device *netdev);
 struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
 					u8 *macaddr, s16 vlan,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 47b9754d1e8e..afd43d7973fa 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1011,10 +1011,12 @@ static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
  **/
 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable)
 {
-	if (enable)
+	if (enable) {
 		pf->flags |= flag;
-	else
+	} else {
 		pf->flags &= ~flag;
+		pf->auto_disable_flags |= flag;
+	}
 	dev_info(&pf->pdev->dev, "requesting a pf reset\n");
 	i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
 }
@@ -1670,6 +1672,15 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		bool add = false;
 		int ret;
 
+		if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
+			goto command_write_done;
+
+		if (strncmp(cmd_buf, "add", 3) == 0)
+			add = true;
+
+		if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
+			goto command_write_done;
+
 		asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
 				     GFP_KERNEL);
 		if (!asc_packet)
@@ -1684,8 +1695,6 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 			goto command_write_done;
 		}
 
-		if (strncmp(cmd_buf, "add", 3) == 0)
-			add = true;
 		cnt = sscanf(&cmd_buf[13],
 			     "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
 			     &fd_data.q_index,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 718a3e0f7de4..8ee224fdc1d1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1460,6 +1460,7 @@ static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
 
 	ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
 
+	i40e_fdir_check_and_reenable(pf);
 	return ret;
 }
 
@@ -1483,9 +1484,16 @@ static int i40e_add_del_fdir_ethtool(struct i40e_vsi *vsi,
 	if (!vsi)
 		return -EINVAL;
 
-	fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
 	pf = vsi->back;
 
+	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
+		return -EOPNOTSUPP;
+
+	if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
+		return -ENOSPC;
+
+	fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
+
 	if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
 			      pf->hw.func_caps.fd_filters_guaranteed)) {
 		return -EINVAL;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 63776ea5092c..6185856689bc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2436,6 +2436,9 @@ static void i40e_fdir_filter_restore(struct i40e_vsi *vsi)
 	struct i40e_pf *pf = vsi->back;
 	struct hlist_node *node;
 
+	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
+		return;
+
 	hlist_for_each_entry_safe(filter, node,
 				  &pf->fdir_filter_list, fdir_node) {
 		i40e_add_del_fdir(vsi, filter, true);
@@ -4623,6 +4626,54 @@ static void i40e_service_event_complete(struct i40e_pf *pf)
 	clear_bit(__I40E_SERVICE_SCHED, &pf->state);
 }
 
+/**
+ * i40e_get_current_fd_count - Get the count of FD filters programmed in the HW
+ * @pf: board private structure
+ **/
+int i40e_get_current_fd_count(struct i40e_pf *pf)
+{
+	int val, fcnt_prog;
+	val = rd32(&pf->hw, I40E_PFQF_FDSTAT);
+	fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) +
+		    ((val & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
+		      I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
+	return fcnt_prog;
+}
+
+/**
+ * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
+ * @pf: board private structure
+ **/
+void i40e_fdir_check_and_reenable(struct i40e_pf *pf)
+{
+	u32 fcnt_prog, fcnt_avail;
+
+	/* Check if, FD SB or ATR was auto disabled and if there is enough room
+	 * to re-enable
+	 */
+	if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
+	    (pf->flags & I40E_FLAG_FD_SB_ENABLED))
+		return;
+	fcnt_prog = i40e_get_current_fd_count(pf);
+	fcnt_avail = pf->hw.fdir_shared_filter_count +
+					       pf->fdir_pf_filter_count;
+	if (fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM)) {
+		if ((pf->flags & I40E_FLAG_FD_SB_ENABLED) &&
+		    (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) {
+			pf->auto_disable_flags &= ~I40E_FLAG_FD_SB_ENABLED;
+			dev_info(&pf->pdev->dev, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
+		}
+	}
+	/* Wait for some more space to be available to turn on ATR */
+	if (fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM * 2)) {
+		if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
+		    (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED)) {
+			pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED;
+			dev_info(&pf->pdev->dev, "ATR is being enabled since we have space in the table now\n");
+		}
+	}
+}
+
 /**
  * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
  * @pf: board private structure
@@ -4632,11 +4683,14 @@ static void i40e_fdir_reinit_subtask(struct i40e_pf *pf)
 	if (!(pf->flags & I40E_FLAG_FDIR_REQUIRES_REINIT))
 		return;
 
-	pf->flags &= ~I40E_FLAG_FDIR_REQUIRES_REINIT;
-
 	/* if interface is down do nothing */
 	if (test_bit(__I40E_DOWN, &pf->state))
 		return;
+	i40e_fdir_check_and_reenable(pf);
+
+	if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
+	    (pf->flags & I40E_FLAG_FD_SB_ENABLED))
+		pf->flags &= ~I40E_FLAG_FDIR_REQUIRES_REINIT;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 2081bdb214e5..daa3b295ff3d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -430,23 +430,61 @@ int i40e_add_del_fdir(struct i40e_vsi *vsi,
 /**
  * i40e_fd_handle_status - check the Programming Status for FD
  * @rx_ring: the Rx ring for this descriptor
- * @qw: the descriptor data
+ * @rx_desc: the Rx descriptor for programming Status, not a packet descriptor.
  * @prog_id: the id originally used for programming
  *
  * This is used to verify if the FD programming or invalidation
  * requested by SW to the HW is successful or not and take actions accordingly.
  **/
-static void i40e_fd_handle_status(struct i40e_ring *rx_ring, u32 qw, u8 prog_id)
+static void i40e_fd_handle_status(struct i40e_ring *rx_ring,
+				  union i40e_rx_desc *rx_desc, u8 prog_id)
 {
-	struct pci_dev *pdev = rx_ring->vsi->back->pdev;
+	struct i40e_pf *pf = rx_ring->vsi->back;
+	struct pci_dev *pdev = pf->pdev;
+	u32 fcnt_prog, fcnt_avail;
 	u32 error;
+	u64 qw;
 
+	qw = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
 	error = (qw & I40E_RX_PROG_STATUS_DESC_QW1_ERROR_MASK) >>
 		I40E_RX_PROG_STATUS_DESC_QW1_ERROR_SHIFT;
 
-	/* for now just print the Status */
-	dev_info(&pdev->dev, "FD programming id %02x, Status %08x\n",
-		 prog_id, error);
+	if (error == (0x1 << I40E_RX_PROG_STATUS_DESC_FD_TBL_FULL_SHIFT)) {
+		dev_warn(&pdev->dev, "ntuple filter loc = %d, could not be added\n",
+			 rx_desc->wb.qword0.hi_dword.fd_id);
+
+		/* filter programming failed most likely due to table full */
+		fcnt_prog = i40e_get_current_fd_count(pf);
+		fcnt_avail = pf->hw.fdir_shared_filter_count +
+						       pf->fdir_pf_filter_count;
+
+		/* If ATR is running fcnt_prog can quickly change,
+		 * if we are very close to full, it makes sense to disable
+		 * FD ATR/SB and then re-enable it when there is room.
+		 */
+		if (fcnt_prog >= (fcnt_avail - I40E_FDIR_BUFFER_FULL_MARGIN)) {
+			/* Turn off ATR first */
+			if (pf->flags | I40E_FLAG_FD_ATR_ENABLED) {
+				pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
+				dev_warn(&pdev->dev, "FD filter space full, ATR for further flows will be turned off\n");
+				pf->auto_disable_flags |=
+						       I40E_FLAG_FD_ATR_ENABLED;
+				pf->flags |= I40E_FLAG_FDIR_REQUIRES_REINIT;
+			} else if (pf->flags | I40E_FLAG_FD_SB_ENABLED) {
+				pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
+				dev_warn(&pdev->dev, "FD filter space full, new ntuple rules will not be added\n");
+				pf->auto_disable_flags |=
+							I40E_FLAG_FD_SB_ENABLED;
+				pf->flags |= I40E_FLAG_FDIR_REQUIRES_REINIT;
+			}
+		} else {
+			dev_info(&pdev->dev, "FD filter programming error");
+		}
+	} else if (error ==
+			  (0x1 << I40E_RX_PROG_STATUS_DESC_NO_FD_ENTRY_SHIFT)) {
+		netdev_info(rx_ring->vsi->netdev, "ntuple filter loc = %d, could not be removed\n",
+			    rx_desc->wb.qword0.hi_dword.fd_id);
+	}
 }
 
 /**
@@ -843,7 +881,7 @@ static void i40e_clean_programming_status(struct i40e_ring *rx_ring,
 		  I40E_RX_PROG_STATUS_DESC_QW1_PROGID_SHIFT;
 
 	if (id == I40E_RX_PROG_STATUS_DESC_FD_FILTER_STATUS)
-		i40e_fd_handle_status(rx_ring, qw, id);
+		i40e_fd_handle_status(rx_ring, rx_desc, id);
 }
 
 /**
@@ -1536,8 +1574,6 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	if (!tx_ring->atr_sample_rate)
 		return;
 
-	tx_ring->atr_count++;
-
 	/* snag network header to get L4 type and address */
 	hdr.network = skb_network_header(skb);
 
@@ -1559,6 +1595,12 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
 
 	th = (struct tcphdr *)(hdr.network + hlen);
 
+	/* Due to lack of space, no more new filters can be programmed */
+	if (th->syn && (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED))
+		return;
+
+	tx_ring->atr_count++;
+
 	/* sample on all syn/fin packets or once every atr sample rate */
 	if (!th->fin && !th->syn && (tx_ring->atr_count < tx_ring->atr_sample_rate))
 		return;
-- 
cgit v1.2.3-55-g7522


From ca64fa4e7eda5d9e2b5f424e901983b86ba0fc49 Mon Sep 17 00:00:00 2001
From: Anjali Singhai Jain
Date: Tue, 11 Feb 2014 08:26:30 +0000
Subject: i40e: Bug fix for FDIR replay logic

The FDIR replay logic was being run a little too soon (before the
queues were enabled) and hence the tail bump was not effective till
a later transaction happened on the queue.

Change-ID: Icfd7cd2e79fc3cae3cbd3f703a2b3a148b4e7bf6
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 6185856689bc..669715bb3400 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2456,8 +2456,6 @@ static int i40e_vsi_configure(struct i40e_vsi *vsi)
 	i40e_set_vsi_rx_mode(vsi);
 	i40e_restore_vlan(vsi);
 	i40e_vsi_config_dcb_rings(vsi);
-	if (vsi->type == I40E_VSI_FDIR)
-		i40e_fdir_filter_restore(vsi);
 	err = i40e_vsi_configure_tx(vsi);
 	if (!err)
 		err = i40e_vsi_configure_rx(vsi);
@@ -4088,6 +4086,10 @@ static int i40e_up_complete(struct i40e_vsi *vsi)
 	} else if (vsi->netdev) {
 		netdev_info(vsi->netdev, "NIC Link is Down\n");
 	}
+
+	/* replay FDIR SB filters */
+	if (vsi->type == I40E_VSI_FDIR)
+		i40e_fdir_filter_restore(vsi);
 	i40e_service_event_schedule(pf);
 
 	return 0;
-- 
cgit v1.2.3-55-g7522


From c0c289759c815a67f176d6f8fa0e44a97f27e46d Mon Sep 17 00:00:00 2001
From: Anjali Singhai Jain
Date: Wed, 12 Feb 2014 01:45:34 +0000
Subject: i40e: Let MDD events be handled by MDD handler

We have a separate handler for MDD events, a generic reset is not required.

Change-ID: I77858e2d479e4e65c52aede67109464649ea0253
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 669715bb3400..54e146227654 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2892,8 +2892,7 @@ static irqreturn_t i40e_intr(int irq, void *data)
 			 icr0_remaining);
 		if ((icr0_remaining & I40E_PFINT_ICR0_PE_CRITERR_MASK) ||
 		    (icr0_remaining & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK) ||
-		    (icr0_remaining & I40E_PFINT_ICR0_ECC_ERR_MASK) ||
-		    (icr0_remaining & I40E_PFINT_ICR0_MAL_DETECT_MASK)) {
+		    (icr0_remaining & I40E_PFINT_ICR0_ECC_ERR_MASK)) {
 			dev_info(&pf->pdev->dev, "device will be reset\n");
 			set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
 			i40e_service_event_schedule(pf);
-- 
cgit v1.2.3-55-g7522


From 9347eb771ece4fda0ad78c1c991f020af17abcb8 Mon Sep 17 00:00:00 2001
From: Mitch Williams
Date: Tue, 11 Feb 2014 08:26:32 +0000
Subject: i40e/i40evf: Use correct number of VF vectors

Now that the 2.4 firmware reports the correct number of MSI-X vectors,
use this value correctly when communicating with the VF, and when
setting up the interrupt linked list.

The PF has always reported the correct number of MSI-X vectors, so we
should never increment the value in the vf driver.

Change-ID: Ifeefc631c321390192219ce2af9ada6180c1492f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 9 +++++----
 drivers/net/ethernet/intel/i40evf/i40evf_main.c    | 2 +-
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 42cc6ba88005..7839343b967b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -69,7 +69,7 @@ static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
 {
 	struct i40e_pf *pf = vf->pf;
 
-	return vector_id <= pf->hw.func_caps.num_msix_vectors_vf;
+	return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
 }
 
 /***********************vf resource mgmt routines*****************/
@@ -126,8 +126,8 @@ static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_idx,
 		reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
 	else
 		reg_idx = I40E_VPINT_LNKLSTN(
-					   (pf->hw.func_caps.num_msix_vectors_vf
-					      * vf->vf_id) + (vector_id - 1));
+		     ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
+		     (vector_id - 1));
 
 	if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
 		/* Special case - No queues mapped on this vector */
@@ -506,7 +506,8 @@ static void i40e_free_vf_res(struct i40e_vf *vf)
 		vf->lan_vsi_index = 0;
 		vf->lan_vsi_id = 0;
 	}
-	msix_vf = pf->hw.func_caps.num_msix_vectors_vf + 1;
+	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
+
 	/* disable interrupts so the VF starts in a known state */
 	for (i = 0; i < msix_vf; i++) {
 		/* format is same for both registers */
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 11d0b61510b0..8daab3aacdc3 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1141,7 +1141,7 @@ static int i40evf_set_interrupt_capability(struct i40evf_adapter *adapter)
 	 * (roughly) twice the number of vectors as there are CPU's.
 	 */
 	v_budget = min(pairs, (int)(num_online_cpus() * 2)) + NONQ_VECS;
-	v_budget = min(v_budget, (int)adapter->vf_res->max_vectors + 1);
+	v_budget = min(v_budget, (int)adapter->vf_res->max_vectors);
 
 	/* A failure in MSI-X entry allocation isn't fatal, but it does
 	 * mean we disable MSI-X capabilities of the adapter.
-- 
cgit v1.2.3-55-g7522


From 6494294f277fdef1409b844b3d6eb1439c3fad8c Mon Sep 17 00:00:00 2001
From: Mitch Williams
Date: Tue, 11 Feb 2014 08:26:33 +0000
Subject: i40e/i40evf: Use dma_set_mask_and_coherent

In Linux 3.13, dma_set_mask_and_coherent was introduced, and we have
been encouraged to use it. It simplifies the DMA mapping code a bit as
well.

Change-ID: I66e340245af7d0dedfa8b40fec1f5e352754432e
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Catherine Sullivan  <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c     | 16 ++++++----------
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 17 ++++++-----------
 2 files changed, 12 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 54e146227654..7379e5a9126b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7970,16 +7970,12 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return err;
 
 	/* set up for high or low dma */
-	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
-		/* coherent mask for the same size will always succeed if
-		 * dma_set_mask does
-		 */
-		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-	} else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
-		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
-	} else {
-		dev_err(&pdev->dev, "DMA configuration failed: %d\n", err);
-		err = -EIO;
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err)
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (err) {
+		dev_err(&pdev->dev,
+			"DMA configuration failed: 0x%x\n", err);
 		goto err_dma;
 	}
 
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 8daab3aacdc3..d62e27f6e83a 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -2182,17 +2182,12 @@ static int i40evf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (err)
 		return err;
 
-	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
-		/* coherent mask for the same size will always succeed if
-		 * dma_set_mask does
-		 */
-		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-	} else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
-		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
-	} else {
-		dev_err(&pdev->dev, "%s: DMA configuration failed: %d\n",
-			 __func__, err);
-		err = -EIO;
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err)
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (err) {
+		dev_err(&pdev->dev,
+			"DMA configuration failed: 0x%x\n", err);
 		goto err_dma;
 	}
 
-- 
cgit v1.2.3-55-g7522