Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2016-02-17

This series contains updates to i40e/i40evf only.

Jesse cleans up a duplicate declaration in probe.  Then fixes a bug where the
driver was using a offset based off a DMA handle while mapping and unmapping
using sync_single_range_for_[cpu|device], when it should be using DMA handle
(returned from alloc_coherent) and the offset of the memory to be sync'd.
Fixed an issue where sync_vsi_filter() was allocating memory in a way that
could sleep (GFP_KERNEL) which was causing a problem when called by the
team driver under rcu_read_lock().

Shannon adds a check to ensure we do not attempt to do TSO when
skb->ip_summed is not set to CHECKSUM_PARTIAL.

Kiran add functions related to port mirroring features such as add/delete
mirror rule.

Jacob assigns the i40e_pf structure directly instead of using a large
memcpy, to avoid a sparse warning and lets the compiler optimize the copy
since it know the size of the structure in advance.

Anjali enables GENEVE capability for XL710/X710 devices with firmware API
version higher than 1.4.  Added flag for automatic rule eviction feature
for X722, which is disabled by default.
====================

Signed-off-by: David S. Miller <[email protected]>

Author: davem330

drivers/net/ethernet/intel/i40e/i40e.h

@@ -104,6 +104,7 @@
 #define I40E_PRIV_FLAGS_FD_ATR		BIT(2)
 #define I40E_PRIV_FLAGS_VEB_STATS	BIT(3)
 #define I40E_PRIV_FLAGS_PS		BIT(4)
+#define I40E_PRIV_FLAGS_HW_ATR_EVICT	BIT(5)
 
 #define I40E_NVM_VERSION_LO_SHIFT  0
 #define I40E_NVM_VERSION_LO_MASK   (0xff << I40E_NVM_VERSION_LO_SHIFT)
@@ -757,7 +758,6 @@ static inline void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
 	/* skip the flush */
 }
 
-void i40e_irq_dynamic_disable(struct i40e_vsi *vsi, int vector);
 void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf);
 void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf);
 #ifdef I40E_FCOE

drivers/net/ethernet/intel/i40e/i40e_common.c

@@ -2032,6 +2032,37 @@ i40e_status i40e_aq_set_vsi_broadcast(struct i40e_hw *hw,
 	return status;
 }
 
+/**
+ * i40e_aq_set_vsi_vlan_promisc - control the VLAN promiscuous setting
+ * @hw: pointer to the hw struct
+ * @seid: vsi number
+ * @enable: set MAC L2 layer unicast promiscuous enable/disable for a given VLAN
+ * @cmd_details: pointer to command details structure or NULL
+ **/
+i40e_status i40e_aq_set_vsi_vlan_promisc(struct i40e_hw *hw,
+				       u16 seid, bool enable,
+				       struct i40e_asq_cmd_details *cmd_details)
+{
+	struct i40e_aq_desc desc;
+	struct i40e_aqc_set_vsi_promiscuous_modes *cmd =
+		(struct i40e_aqc_set_vsi_promiscuous_modes *)&desc.params.raw;
+	i40e_status status;
+	u16 flags = 0;
+
+	i40e_fill_default_direct_cmd_desc(&desc,
+					i40e_aqc_opc_set_vsi_promiscuous_modes);
+	if (enable)
+		flags |= I40E_AQC_SET_VSI_PROMISC_VLAN;
+
+	cmd->promiscuous_flags = cpu_to_le16(flags);
+	cmd->valid_flags = cpu_to_le16(I40E_AQC_SET_VSI_PROMISC_VLAN);
+	cmd->seid = cpu_to_le16(seid);
+
+	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
+
+	return status;
+}
+
 /**
  * i40e_get_vsi_params - get VSI configuration info
  * @hw: pointer to the hw struct
@@ -2469,6 +2500,137 @@ i40e_status i40e_aq_remove_macvlan(struct i40e_hw *hw, u16 seid,
 	return status;
 }
 
+/**
+ * i40e_mirrorrule_op - Internal helper function to add/delete mirror rule
+ * @hw: pointer to the hw struct
+ * @opcode: AQ opcode for add or delete mirror rule
+ * @sw_seid: Switch SEID (to which rule refers)
+ * @rule_type: Rule Type (ingress/egress/VLAN)
+ * @id: Destination VSI SEID or Rule ID
+ * @count: length of the list
+ * @mr_list: list of mirrored VSI SEIDs or VLAN IDs
+ * @cmd_details: pointer to command details structure or NULL
+ * @rule_id: Rule ID returned from FW
+ * @rule_used: Number of rules used in internal switch
+ * @rule_free: Number of rules free in internal switch
+ *
+ * Add/Delete a mirror rule to a specific switch. Mirror rules are supported for
+ * VEBs/VEPA elements only
+ **/
+static i40e_status i40e_mirrorrule_op(struct i40e_hw *hw,
+				u16 opcode, u16 sw_seid, u16 rule_type, u16 id,
+				u16 count, __le16 *mr_list,
+				struct i40e_asq_cmd_details *cmd_details,
+				u16 *rule_id, u16 *rules_used, u16 *rules_free)
+{
+	struct i40e_aq_desc desc;
+	struct i40e_aqc_add_delete_mirror_rule *cmd =
+		(struct i40e_aqc_add_delete_mirror_rule *)&desc.params.raw;
+	struct i40e_aqc_add_delete_mirror_rule_completion *resp =
+	(struct i40e_aqc_add_delete_mirror_rule_completion *)&desc.params.raw;
+	i40e_status status;
+	u16 buf_size;
+
+	buf_size = count * sizeof(*mr_list);
+
+	/* prep the rest of the request */
+	i40e_fill_default_direct_cmd_desc(&desc, opcode);
+	cmd->seid = cpu_to_le16(sw_seid);
+	cmd->rule_type = cpu_to_le16(rule_type &
+				     I40E_AQC_MIRROR_RULE_TYPE_MASK);
+	cmd->num_entries = cpu_to_le16(count);
+	/* Dest VSI for add, rule_id for delete */
+	cmd->destination = cpu_to_le16(id);
+	if (mr_list) {
+		desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF |
+						I40E_AQ_FLAG_RD));
+		if (buf_size > I40E_AQ_LARGE_BUF)
+			desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
+	}
+
+	status = i40e_asq_send_command(hw, &desc, mr_list, buf_size,
+				       cmd_details);
+	if (!status ||
+	    hw->aq.asq_last_status == I40E_AQ_RC_ENOSPC) {
+		if (rule_id)
+			*rule_id = le16_to_cpu(resp->rule_id);
+		if (rules_used)
+			*rules_used = le16_to_cpu(resp->mirror_rules_used);
+		if (rules_free)
+			*rules_free = le16_to_cpu(resp->mirror_rules_free);
+	}
+	return status;
+}
+
+/**
+ * i40e_aq_add_mirrorrule - add a mirror rule
+ * @hw: pointer to the hw struct
+ * @sw_seid: Switch SEID (to which rule refers)
+ * @rule_type: Rule Type (ingress/egress/VLAN)
+ * @dest_vsi: SEID of VSI to which packets will be mirrored
+ * @count: length of the list
+ * @mr_list: list of mirrored VSI SEIDs or VLAN IDs
+ * @cmd_details: pointer to command details structure or NULL
+ * @rule_id: Rule ID returned from FW
+ * @rule_used: Number of rules used in internal switch
+ * @rule_free: Number of rules free in internal switch
+ *
+ * Add mirror rule. Mirror rules are supported for VEBs or VEPA elements only
+ **/
+i40e_status i40e_aq_add_mirrorrule(struct i40e_hw *hw, u16 sw_seid,
+			u16 rule_type, u16 dest_vsi, u16 count, __le16 *mr_list,
+			struct i40e_asq_cmd_details *cmd_details,
+			u16 *rule_id, u16 *rules_used, u16 *rules_free)
+{
+	if (!(rule_type == I40E_AQC_MIRROR_RULE_TYPE_ALL_INGRESS ||
+	    rule_type == I40E_AQC_MIRROR_RULE_TYPE_ALL_EGRESS)) {
+		if (count == 0 || !mr_list)
+			return I40E_ERR_PARAM;
+	}
+
+	return i40e_mirrorrule_op(hw, i40e_aqc_opc_add_mirror_rule, sw_seid,
+				  rule_type, dest_vsi, count, mr_list,
+				  cmd_details, rule_id, rules_used, rules_free);
+}
+
+/**
+ * i40e_aq_delete_mirrorrule - delete a mirror rule
+ * @hw: pointer to the hw struct
+ * @sw_seid: Switch SEID (to which rule refers)
+ * @rule_type: Rule Type (ingress/egress/VLAN)
+ * @count: length of the list
+ * @rule_id: Rule ID that is returned in the receive desc as part of
+ *		add_mirrorrule.
+ * @mr_list: list of mirrored VLAN IDs to be removed
+ * @cmd_details: pointer to command details structure or NULL
+ * @rule_used: Number of rules used in internal switch
+ * @rule_free: Number of rules free in internal switch
+ *
+ * Delete a mirror rule. Mirror rules are supported for VEBs/VEPA elements only
+ **/
+i40e_status i40e_aq_delete_mirrorrule(struct i40e_hw *hw, u16 sw_seid,
+			u16 rule_type, u16 rule_id, u16 count, __le16 *mr_list,
+			struct i40e_asq_cmd_details *cmd_details,
+			u16 *rules_used, u16 *rules_free)
+{
+	/* Rule ID has to be valid except rule_type: INGRESS VLAN mirroring */
+	if (rule_type != I40E_AQC_MIRROR_RULE_TYPE_VLAN) {
+		if (!rule_id)
+			return I40E_ERR_PARAM;
+	} else {
+		/* count and mr_list shall be valid for rule_type INGRESS VLAN
+		 * mirroring. For other rule_type, count and rule_type should
+		 * not matter.
+		 */
+		if (count == 0 || !mr_list)
+			return I40E_ERR_PARAM;
+	}
+
+	return i40e_mirrorrule_op(hw, i40e_aqc_opc_delete_mirror_rule, sw_seid,
+				  rule_type, rule_id, count, mr_list,
+				  cmd_details, NULL, rules_used, rules_free);
+}
+
 /**
  * i40e_aq_send_msg_to_vf
  * @hw: pointer to the hardware structure

drivers/net/ethernet/intel/i40e/i40e_debugfs.c

@@ -185,9 +185,11 @@ static ssize_t i40e_dbg_dump_write(struct file *filp,
 		if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 			p = i40e_dbg_dump_buf;
 
-			len = sizeof(struct i40e_pf);
-			memcpy(p, pf, len);
-			p += len;
+			/* avoid use of memcpy here due to sparse warning
+			 * about copy size.
+			 */
+			*((struct i40e_pf *)p) = *pf;
+			p += sizeof(struct i40e_pf);
 
 			len = (sizeof(struct i40e_aq_desc)
 					* pf->hw.aq.num_asq_entries);

drivers/net/ethernet/intel/i40e/i40e_ethtool.c

@@ -89,6 +89,8 @@ static const struct i40e_stats i40e_gstrings_misc_stats[] = {
 	I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
 	I40E_VSI_STAT("tx_linearize", tx_linearize),
 	I40E_VSI_STAT("tx_force_wb", tx_force_wb),
+	I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
+	I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
 };
 
 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
@@ -233,6 +235,7 @@ static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
 	"flow-director-atr",
 	"veb-stats",
 	"packet-split",
+	"hw-atr-eviction",
 };
 
 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
@@ -2729,6 +2732,8 @@ static u32 i40e_get_priv_flags(struct net_device *dev)
 		I40E_PRIV_FLAGS_VEB_STATS : 0;
 	ret_flags |= pf->flags & I40E_FLAG_RX_PS_ENABLED ?
 		I40E_PRIV_FLAGS_PS : 0;
+	ret_flags |= pf->auto_disable_flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE ?
+		0 : I40E_PRIV_FLAGS_HW_ATR_EVICT;
 
 	return ret_flags;
 }
@@ -2785,6 +2790,12 @@ static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
 	else
 		pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED;
 
+	if ((flags & I40E_PRIV_FLAGS_HW_ATR_EVICT) &&
+	    (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE))
+		pf->auto_disable_flags &= ~I40E_FLAG_HW_ATR_EVICT_CAPABLE;
+	else
+		pf->auto_disable_flags |= I40E_FLAG_HW_ATR_EVICT_CAPABLE;
+
 	/* if needed, issue reset to cause things to take effect */
 	if (reset_required)
 		i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));