[net-next 00/18][pull request] 40GbE Intel Wired LAN Driver Updates 2016-12-02

[net-next 00/18][pull request] 40GbE Intel Wired LAN Driver Updates 2016-12-02

[Jeff Kirsher]

This series contains updates to i40e and i40evf only.

Alex provides changes so that we are much more robust about defining what
we can and cannot offload in i40e and i40evf by doing additional checks
other than L4 tunnel header length.

Jake provides several fixes/changes, first cleaning up a label that is
unnecessary, as well as cleaned up the use of a "magic number".  Clarified
the code by separating the global private flags and the regular private
flags per interface into two arrays, so that future additions will not
produce duplication and buggy code.  Adds additional checks to protect
against NULL values for msix_entries and q_vectors pointers.

Michal adds Clause22 method for accessing registers for some external
PHYs.

Piotr adds additional protocol support for the admin queue discover
capabilities function.

Tushar Dave fixes a panic seen on SPARC, where writel() should not be
used to write directly to a memory address but only to a memory mapped
I/O address otherwise it causes data access exceptions.

Joe Perches separates out a section of code into its own function, to
help reduce i40evf_reset_task() a bit.

Alan fixes an issue by checking for NULL before dereferencing msix_entries
and returning early in the case where it is NULL within the i40evf_close()
code path.

Henry provides code cleanup to remove unreachable and redundant sections
of code.  Fixed up an issue where new NICs were not identifying "unknown
PHYs" correctly.

Harshitha fixes a issue where the ethtool "Supported Link" modes list
backplane interfaces on X722 devices for 10 GbE with SFP+ and Cortina
retimer, where these interfaces should not be visible to the user since
they cannot use them.

Carolyn changes an X722 informational message so that it only appears
when extra messages are desired.

The following are changes since commit ab17cb1fea82b346bdecd4f2d7f0e84e80f847af:
  Merge tag 'wireless-drivers-next-for-davem-2016-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue 40GbE

Alan Brady (1):
  i40evf: check for msix_entries null dereference

Alexander Duyck (2):
  i40e: Be much more verbose about what we can and cannot offload
  i40evf: Be much more verbose about what we can and cannot offload

Carolyn Wyborny (1):
  i40e: change message to only appear when extra debug info is wanted

Harshitha Ramamurthy (1):
  i40e: Fix for ethtool Supported link modes

Henry Tieman (2):
  i40e: Remove unreachable code
  i40e: Pass unknown PHY type for unknown PHYs

Jacob Keller (7):
  i40e: remove error_param_int label from
    i40e_vc_config_promiscuous_mode_msg
  i40e: remove second check of VLAN_N_VID in i40e_vlan_rx_add_vid
  i40e: avoid duplicate private flags definitions
  i40e: fix trivial typo in naming of i40e_sync_filters_subtask
  i40evf: protect against NULL msix_entries and q_vectors pointers
  i40e: set broadcast promiscuous mode for each active VLAN
  i40e/i40evf: replace for memcpy with single memcpy call in ethtool

Joe Perches (1):
  i40evf: Move some i40evf_reset_task code to separate function

Michal Kosiarz (1):
  i40e: Add Clause22 implementation

Piotr Raczynski (1):
  i40e: Add protocols over MCTP to i40e_aq_discover_capabilities

Tushar Dave (1):
  i40e: fix panic on SPARC while changing num of desc

 drivers/net/ethernet/intel/i40e/i40e.h             |   1 +
 drivers/net/ethernet/intel/i40e/i40e_common.c      | 218 ++++++++++++++++-----
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c     |  78 ++++----
 drivers/net/ethernet/intel/i40e/i40e_main.c        | 171 ++++++++++++----
 drivers/net/ethernet/intel/i40e/i40e_prototype.h   |  15 +-
 drivers/net/ethernet/intel/i40e/i40e_type.h        |  23 ++-
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  14 +-
 drivers/net/ethernet/intel/i40evf/i40e_type.h      |   4 +
 drivers/net/ethernet/intel/i40evf/i40evf_main.c    | 171 +++++++++++-----
 9 files changed, 511 insertions(+), 184 deletions(-)

-- 
2.9.3

[net-next 01/18] i40e: Be much more verbose about what we can and cannot offload

[Jeff Kirsher]

From: Alexander Duyck <alexander.h.duyck@intel.com>

This change makes it so that we are much more robust about defining what we
can and cannot offload.  Previously we were just checking for the L4 tunnel
header length, however there are other fields we should be verifying as
there are multiple scenarios in which we cannot perform hardware offloads.

In addition the device only supports GSO as long as the MSS is 64 or
greater.  We were not checking this so an MSS less than that was resulting
in Tx hangs.

Change-ID: I5e2fd5f3075c73601b4b36327b771c64fcb6c31b
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 52 ++++++++++++++++++++++++-----
 1 file changed, 44 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 5c6a5ce..2d91274 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -9070,10 +9070,6 @@ static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 				       0, 0, nlflags, filter_mask, NULL);
 }
 
-/* Hardware supports L4 tunnel length of 128B (=2^7) which includes
- * inner mac plus all inner ethertypes.
- */
-#define I40E_MAX_TUNNEL_HDR_LEN 128
 /**
  * i40e_features_check - Validate encapsulated packet conforms to limits
  * @skb: skb buff
@@ -9084,12 +9080,52 @@ static netdev_features_t i40e_features_check(struct sk_buff *skb,
 					     struct net_device *dev,
 					     netdev_features_t features)
 {
-	if (skb->encapsulation &&
-	    ((skb_inner_network_header(skb) - skb_transport_header(skb)) >
-	     I40E_MAX_TUNNEL_HDR_LEN))
-		return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
+	size_t len;
+
+	/* No point in doing any of this if neither checksum nor GSO are
+	 * being requested for this frame.  We can rule out both by just
+	 * checking for CHECKSUM_PARTIAL
+	 */
+	if (skb->ip_summed != CHECKSUM_PARTIAL)
+		return features;
+
+	/* We cannot support GSO if the MSS is going to be less than
+	 * 64 bytes.  If it is then we need to drop support for GSO.
+	 */
+	if (skb_is_gso(skb) && (skb_shinfo(skb)->gso_size < 64))
+		features &= ~NETIF_F_GSO_MASK;
+
+	/* MACLEN can support at most 63 words */
+	len = skb_network_header(skb) - skb->data;
+	if (len & ~(63 * 2))
+		goto out_err;
+
+	/* IPLEN and EIPLEN can support at most 127 dwords */
+	len = skb_transport_header(skb) - skb_network_header(skb);
+	if (len & ~(127 * 4))
+		goto out_err;
+
+	if (skb->encapsulation) {
+		/* L4TUNLEN can support 127 words */
+		len = skb_inner_network_header(skb) - skb_transport_header(skb);
+		if (len & ~(127 * 2))
+			goto out_err;
+
+		/* IPLEN can support at most 127 dwords */
+		len = skb_inner_transport_header(skb) -
+		      skb_inner_network_header(skb);
+		if (len & ~(127 * 4))
+			goto out_err;
+	}
+
+	/* No need to validate L4LEN as TCP is the only protocol with a
+	 * a flexible value and we support all possible values supported
+	 * by TCP, which is at most 15 dwords
+	 */
 
 	return features;
+out_err:
+	return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
 }
 
 static const struct net_device_ops i40e_netdev_ops = {
-- 
2.9.3

[net-next 02/18] i40evf: Be much more verbose about what we can and cannot offload

[Jeff Kirsher]

From: Alexander Duyck <alexander.h.duyck@intel.com>

This change makes it so that we are much more robust about defining what we
can and cannot offload.  Previously we were performing no checks.  This
should bring us up to parity with the i40e PF driver.

In addition the device only supports GSO as long as the MSS is 64 or
greater.  We were not checking this so an MSS less than that was resulting
in Tx hangs.

Change-ID: If533553ec92fc6ba694eab6ac81fdaf3004f3592
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 59 +++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index db36744..7bbb55f 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -2172,6 +2172,64 @@ static int i40evf_change_mtu(struct net_device *netdev, int new_mtu)
 	return 0;
 }
 
+/**
+ * i40evf_features_check - Validate encapsulated packet conforms to limits
+ * @skb: skb buff
+ * @netdev: This physical port's netdev
+ * @features: Offload features that the stack believes apply
+ **/
+static netdev_features_t i40evf_features_check(struct sk_buff *skb,
+					       struct net_device *dev,
+					       netdev_features_t features)
+{
+	size_t len;
+
+	/* No point in doing any of this if neither checksum nor GSO are
+	 * being requested for this frame.  We can rule out both by just
+	 * checking for CHECKSUM_PARTIAL
+	 */
+	if (skb->ip_summed != CHECKSUM_PARTIAL)
+		return features;
+
+	/* We cannot support GSO if the MSS is going to be less than
+	 * 64 bytes.  If it is then we need to drop support for GSO.
+	 */
+	if (skb_is_gso(skb) && (skb_shinfo(skb)->gso_size < 64))
+		features &= ~NETIF_F_GSO_MASK;
+
+	/* MACLEN can support at most 63 words */
+	len = skb_network_header(skb) - skb->data;
+	if (len & ~(63 * 2))
+		goto out_err;
+
+	/* IPLEN and EIPLEN can support at most 127 dwords */
+	len = skb_transport_header(skb) - skb_network_header(skb);
+	if (len & ~(127 * 4))
+		goto out_err;
+
+	if (skb->encapsulation) {
+		/* L4TUNLEN can support 127 words */
+		len = skb_inner_network_header(skb) - skb_transport_header(skb);
+		if (len & ~(127 * 2))
+			goto out_err;
+
+		/* IPLEN can support at most 127 dwords */
+		len = skb_inner_transport_header(skb) -
+		      skb_inner_network_header(skb);
+		if (len & ~(127 * 4))
+			goto out_err;
+	}
+
+	/* No need to validate L4LEN as TCP is the only protocol with a
+	 * a flexible value and we support all possible values supported
+	 * by TCP, which is at most 15 dwords
+	 */
+
+	return features;
+out_err:
+	return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
+}
+
 #define I40EVF_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_TX |\
 			      NETIF_F_HW_VLAN_CTAG_RX |\
 			      NETIF_F_HW_VLAN_CTAG_FILTER)
@@ -2206,6 +2264,7 @@ static const struct net_device_ops i40evf_netdev_ops = {
 	.ndo_tx_timeout		= i40evf_tx_timeout,
 	.ndo_vlan_rx_add_vid	= i40evf_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= i40evf_vlan_rx_kill_vid,
+	.ndo_features_check	= i40evf_features_check,
 	.ndo_fix_features	= i40evf_fix_features,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= i40evf_netpoll,
-- 
2.9.3

[net-next 03/18] i40e: remove error_param_int label from i40e_vc_config_promiscuous_mode_msg

[Jeff Kirsher]

From: Jacob Keller <jacob.e.keller@intel.com>

This label is unnecessary, as are jumping to a block that checks aq_ret
and then immediately skipping it and returning. So just jump straight to
the error_param and remove this unnecessary label.

Also use goto error_param even in the last check for style consistency.

Change-ID: If487c7d10c4048e37c594e5eca167693aaed45f6
Signed-off-by: Jacob Keller <jacob.e.keller@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_virtchnl_pf.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 53b46553..46908c0 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1536,7 +1536,7 @@ static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
 				vf->vf_id,
 				i40e_stat_str(&pf->hw, aq_ret),
 				i40e_aq_str(&pf->hw, aq_err));
-			goto error_param_int;
+			goto error_param;
 		}
 	}
 
@@ -1581,15 +1581,16 @@ static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
 							     allmulti, NULL,
 							     true);
 		aq_err = pf->hw.aq.asq_last_status;
-		if (aq_ret)
+		if (aq_ret) {
 			dev_err(&pf->pdev->dev,
 				"VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n",
 				vf->vf_id, info->flags,
 				i40e_stat_str(&pf->hw, aq_ret),
 				i40e_aq_str(&pf->hw, aq_err));
+			goto error_param;
+		}
 	}
 
-error_param_int:
 	if (!aq_ret) {
 		dev_info(&pf->pdev->dev,
 			 "VF %d successfully set unicast promiscuous mode\n",
-- 
2.9.3

[net-next 04/18] i40e: remove second check of VLAN_N_VID in i40e_vlan_rx_add_vid

[Jeff Kirsher]

From: Jacob Keller <jacob.e.keller@intel.com>

Replace a check of magic number 4095 with VLAN_N_VID. This
makes it obvious that a later check against VLAN_N_VID is
always true and can be removed.

Change-ID: I28998f127a61a529480ce63d8a07e266f6c63b7b
Signed-off-by: Jacob Keller <jacob.e.keller@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_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 2d91274..fe5939a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2549,7 +2549,7 @@ static int i40e_vlan_rx_add_vid(struct net_device *netdev,
 	struct i40e_vsi *vsi = np->vsi;
 	int ret = 0;
 
-	if (vid > 4095)
+	if (vid >= VLAN_N_VID)
 		return -EINVAL;
 
 	/* If the network stack called us with vid = 0 then
@@ -2561,7 +2561,7 @@ static int i40e_vlan_rx_add_vid(struct net_device *netdev,
 	if (vid)
 		ret = i40e_vsi_add_vlan(vsi, vid);
 
-	if (!ret && (vid < VLAN_N_VID))
+	if (!ret)
 		set_bit(vid, vsi->active_vlans);
 
 	return ret;
-- 
2.9.3

[net-next 05/18] i40e: avoid duplicate private flags definitions

[Jeff Kirsher]

From: Jacob Keller <jacob.e.keller@intel.com>

Separate the global private flags and the regular private flags per
interface into two arrays. Future additions of private flags will not
need to be duplicated which may lead to buggy code. Also rename
"i40e_priv_flags_strings_gl" to "i40e_gl_priv_flags_strings" for
clarity, as it reads more naturally.

Change-ID: I68caef3c9954eb7da342d7f9d20f2873186f2758
Signed-off-by: Jacob Keller <jacob.e.keller@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_ethtool.c | 42 +++++++++++---------------
 1 file changed, 17 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index b9e1162..f99c135 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -228,26 +228,22 @@ static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 
 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 
-static const char i40e_priv_flags_strings_gl[][ETH_GSTRING_LEN] = {
+static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
 	"MFP",
 	"LinkPolling",
 	"flow-director-atr",
 	"veb-stats",
 	"hw-atr-eviction",
-	"vf-true-promisc-support",
 };
 
-#define I40E_PRIV_FLAGS_GL_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings_gl)
+#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
 
-static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
-	"NPAR",
-	"LinkPolling",
-	"flow-director-atr",
-	"veb-stats",
-	"hw-atr-eviction",
+/* Private flags with a global effect, restricted to PF 0 */
+static const char i40e_gl_priv_flags_strings[][ETH_GSTRING_LEN] = {
+	"vf-true-promisc-support",
 };
 
-#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
+#define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_priv_flags_strings)
 
 /**
  * i40e_partition_setting_complaint - generic complaint for MFP restriction
@@ -1194,10 +1190,9 @@ static void i40e_get_drvinfo(struct net_device *netdev,
 		sizeof(drvinfo->fw_version));
 	strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
 		sizeof(drvinfo->bus_info));
+	drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
 	if (pf->hw.pf_id == 0)
-		drvinfo->n_priv_flags = I40E_PRIV_FLAGS_GL_STR_LEN;
-	else
-		drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
+		drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
 }
 
 static void i40e_get_ringparam(struct net_device *netdev,
@@ -1425,10 +1420,8 @@ static int i40e_get_sset_count(struct net_device *netdev, int sset)
 			return I40E_VSI_STATS_LEN(netdev);
 		}
 	case ETH_SS_PRIV_FLAGS:
-		if (pf->hw.pf_id == 0)
-			return I40E_PRIV_FLAGS_GL_STR_LEN;
-		else
-			return I40E_PRIV_FLAGS_STR_LEN;
+		return I40E_PRIV_FLAGS_STR_LEN +
+			(pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -1626,15 +1619,14 @@ static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 		/* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
 		break;
 	case ETH_SS_PRIV_FLAGS:
+		for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
+			memcpy(data, i40e_priv_flags_strings[i],
+			       ETH_GSTRING_LEN);
+			data += ETH_GSTRING_LEN;
+		}
 		if (pf->hw.pf_id == 0) {
-			for (i = 0; i < I40E_PRIV_FLAGS_GL_STR_LEN; i++) {
-				memcpy(data, i40e_priv_flags_strings_gl[i],
-				       ETH_GSTRING_LEN);
-				data += ETH_GSTRING_LEN;
-			}
-		} else {
-			for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
-				memcpy(data, i40e_priv_flags_strings[i],
+			for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
+				memcpy(data, i40e_gl_priv_flags_strings[i],
 				       ETH_GSTRING_LEN);
 				data += ETH_GSTRING_LEN;
 			}
-- 
2.9.3

[net-next 06/18] i40e: Add Clause22 implementation

[Jeff Kirsher]

From: Michal Kosiarz <michal.kosiarz@intel.com>

Some external PHYs require Clause22 method for accessing registers.
This patch also adds some defines to support blink led on devices using
10CBaseT PHY.

Change-ID: I868a4326911900f6c89e7e522fda4968b0825f14
Signed-off-by: Michal Kosiarz <michal.kosiarz@intel.com>
Signed-off-by: Matt Jared <matthew.a.jared@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    | 180 +++++++++++++++++------
 drivers/net/ethernet/intel/i40e/i40e_prototype.h |  12 +-
 drivers/net/ethernet/intel/i40e/i40e_type.h      |  19 ++-
 3 files changed, 159 insertions(+), 52 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 98791ba..5cef393 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -4396,7 +4396,99 @@ i40e_status i40e_aq_configure_partition_bw(struct i40e_hw *hw,
 }
 
 /**
- * i40e_read_phy_register
+ * i40e_read_phy_register_clause22
+ * @hw: pointer to the HW structure
+ * @reg: register address in the page
+ * @phy_adr: PHY address on MDIO interface
+ * @value: PHY register value
+ *
+ * Reads specified PHY register value
+ **/
+i40e_status i40e_read_phy_register_clause22(struct i40e_hw *hw,
+					    u16 reg, u8 phy_addr, u16 *value)
+{
+	i40e_status status = I40E_ERR_TIMEOUT;
+	u8 port_num = (u8)hw->func_caps.mdio_port_num;
+	u32 command = 0;
+	u16 retry = 1000;
+
+	command = (reg << I40E_GLGEN_MSCA_DEVADD_SHIFT) |
+		  (phy_addr << I40E_GLGEN_MSCA_PHYADD_SHIFT) |
+		  (I40E_MDIO_CLAUSE22_OPCODE_READ_MASK) |
+		  (I40E_MDIO_CLAUSE22_STCODE_MASK) |
+		  (I40E_GLGEN_MSCA_MDICMD_MASK);
+	wr32(hw, I40E_GLGEN_MSCA(port_num), command);
+	do {
+		command = rd32(hw, I40E_GLGEN_MSCA(port_num));
+		if (!(command & I40E_GLGEN_MSCA_MDICMD_MASK)) {
+			status = 0;
+			break;
+		}
+		udelay(10);
+		retry--;
+	} while (retry);
+
+	if (status) {
+		i40e_debug(hw, I40E_DEBUG_PHY,
+			   "PHY: Can't write command to external PHY.\n");
+		goto phy_read_end;
+	}
+
+	if (!status) {
+		command = rd32(hw, I40E_GLGEN_MSRWD(port_num));
+		*value = (command & I40E_GLGEN_MSRWD_MDIRDDATA_MASK) >>
+			 I40E_GLGEN_MSRWD_MDIRDDATA_SHIFT;
+	} else {
+		i40e_debug(hw, I40E_DEBUG_PHY,
+			   "PHY: Can't read register value from external PHY.\n");
+	}
+
+phy_read_end:
+	return status;
+}
+
+/**
+ * i40e_write_phy_register_clause22
+ * @hw: pointer to the HW structure
+ * @reg: register address in the page
+ * @phy_adr: PHY address on MDIO interface
+ * @value: PHY register value
+ *
+ * Writes specified PHY register value
+ **/
+i40e_status i40e_write_phy_register_clause22(struct i40e_hw *hw,
+					     u16 reg, u8 phy_addr, u16 value)
+{
+	i40e_status status = I40E_ERR_TIMEOUT;
+	u8 port_num = (u8)hw->func_caps.mdio_port_num;
+	u32 command  = 0;
+	u16 retry = 1000;
+
+	command = value << I40E_GLGEN_MSRWD_MDIWRDATA_SHIFT;
+	wr32(hw, I40E_GLGEN_MSRWD(port_num), command);
+
+	command = (reg << I40E_GLGEN_MSCA_DEVADD_SHIFT) |
+		  (phy_addr << I40E_GLGEN_MSCA_PHYADD_SHIFT) |
+		  (I40E_MDIO_CLAUSE22_OPCODE_WRITE_MASK) |
+		  (I40E_MDIO_CLAUSE22_STCODE_MASK) |
+		  (I40E_GLGEN_MSCA_MDICMD_MASK);
+
+	wr32(hw, I40E_GLGEN_MSCA(port_num), command);
+	do {
+		command = rd32(hw, I40E_GLGEN_MSCA(port_num));
+		if (!(command & I40E_GLGEN_MSCA_MDICMD_MASK)) {
+			status = 0;
+			break;
+		}
+		udelay(10);
+		retry--;
+	} while (retry);
+
+	return status;
+}
+
+/**
+ * i40e_read_phy_register_clause45
  * @hw: pointer to the HW structure
  * @page: registers page number
  * @reg: register address in the page
@@ -4405,9 +4497,8 @@ i40e_status i40e_aq_configure_partition_bw(struct i40e_hw *hw,
  *
  * Reads specified PHY register value
  **/
-i40e_status i40e_read_phy_register(struct i40e_hw *hw,
-				   u8 page, u16 reg, u8 phy_addr,
-				   u16 *value)
+i40e_status i40e_read_phy_register_clause45(struct i40e_hw *hw,
+				u8 page, u16 reg, u8 phy_addr, u16 *value)
 {
 	i40e_status status = I40E_ERR_TIMEOUT;
 	u32 command = 0;
@@ -4417,8 +4508,8 @@ i40e_status i40e_read_phy_register(struct i40e_hw *hw,
 	command = (reg << I40E_GLGEN_MSCA_MDIADD_SHIFT) |
 		  (page << I40E_GLGEN_MSCA_DEVADD_SHIFT) |
 		  (phy_addr << I40E_GLGEN_MSCA_PHYADD_SHIFT) |
-		  (I40E_MDIO_OPCODE_ADDRESS) |
-		  (I40E_MDIO_STCODE) |
+		  (I40E_MDIO_CLAUSE45_OPCODE_ADDRESS_MASK) |
+		  (I40E_MDIO_CLAUSE45_STCODE_MASK) |
 		  (I40E_GLGEN_MSCA_MDICMD_MASK) |
 		  (I40E_GLGEN_MSCA_MDIINPROGEN_MASK);
 	wr32(hw, I40E_GLGEN_MSCA(port_num), command);
@@ -4440,8 +4531,8 @@ i40e_status i40e_read_phy_register(struct i40e_hw *hw,
 
 	command = (page << I40E_GLGEN_MSCA_DEVADD_SHIFT) |
 		  (phy_addr << I40E_GLGEN_MSCA_PHYADD_SHIFT) |
-		  (I40E_MDIO_OPCODE_READ) |
-		  (I40E_MDIO_STCODE) |
+		  (I40E_MDIO_CLAUSE45_OPCODE_READ_MASK) |
+		  (I40E_MDIO_CLAUSE45_STCODE_MASK) |
 		  (I40E_GLGEN_MSCA_MDICMD_MASK) |
 		  (I40E_GLGEN_MSCA_MDIINPROGEN_MASK);
 	status = I40E_ERR_TIMEOUT;
@@ -4471,7 +4562,7 @@ i40e_status i40e_read_phy_register(struct i40e_hw *hw,
 }
 
 /**
- * i40e_write_phy_register
+ * i40e_write_phy_register_clause45
  * @hw: pointer to the HW structure
  * @page: registers page number
  * @reg: register address in the page
@@ -4480,9 +4571,8 @@ i40e_status i40e_read_phy_register(struct i40e_hw *hw,
  *
  * Writes value to specified PHY register
  **/
-i40e_status i40e_write_phy_register(struct i40e_hw *hw,
-				    u8 page, u16 reg, u8 phy_addr,
-				    u16 value)
+i40e_status i40e_write_phy_register_clause45(struct i40e_hw *hw,
+				u8 page, u16 reg, u8 phy_addr, u16 value)
 {
 	i40e_status status = I40E_ERR_TIMEOUT;
 	u32 command = 0;
@@ -4492,8 +4582,8 @@ i40e_status i40e_write_phy_register(struct i40e_hw *hw,
 	command = (reg << I40E_GLGEN_MSCA_MDIADD_SHIFT) |
 		  (page << I40E_GLGEN_MSCA_DEVADD_SHIFT) |
 		  (phy_addr << I40E_GLGEN_MSCA_PHYADD_SHIFT) |
-		  (I40E_MDIO_OPCODE_ADDRESS) |
-		  (I40E_MDIO_STCODE) |
+		  (I40E_MDIO_CLAUSE45_OPCODE_ADDRESS_MASK) |
+		  (I40E_MDIO_CLAUSE45_STCODE_MASK) |
 		  (I40E_GLGEN_MSCA_MDICMD_MASK) |
 		  (I40E_GLGEN_MSCA_MDIINPROGEN_MASK);
 	wr32(hw, I40E_GLGEN_MSCA(port_num), command);
@@ -4517,8 +4607,8 @@ i40e_status i40e_write_phy_register(struct i40e_hw *hw,
 
 	command = (page << I40E_GLGEN_MSCA_DEVADD_SHIFT) |
 		  (phy_addr << I40E_GLGEN_MSCA_PHYADD_SHIFT) |
-		  (I40E_MDIO_OPCODE_WRITE) |
-		  (I40E_MDIO_STCODE) |
+		  (I40E_MDIO_CLAUSE45_OPCODE_WRITE_MASK) |
+		  (I40E_MDIO_CLAUSE45_STCODE_MASK) |
 		  (I40E_GLGEN_MSCA_MDICMD_MASK) |
 		  (I40E_GLGEN_MSCA_MDIINPROGEN_MASK);
 	status = I40E_ERR_TIMEOUT;
@@ -4580,14 +4670,16 @@ i40e_status i40e_blink_phy_link_led(struct i40e_hw *hw,
 
 	for (gpio_led_port = 0; gpio_led_port < 3; gpio_led_port++,
 	     led_addr++) {
-		status = i40e_read_phy_register(hw, I40E_PHY_COM_REG_PAGE,
-						led_addr, phy_addr, &led_reg);
+		status = i40e_read_phy_register_clause45(hw,
+							 I40E_PHY_COM_REG_PAGE,
+							 led_addr, phy_addr,
+							 &led_reg);
 		if (status)
 			goto phy_blinking_end;
 		led_ctl = led_reg;
 		if (led_reg & I40E_PHY_LED_LINK_MODE_MASK) {
 			led_reg = 0;
-			status = i40e_write_phy_register(hw,
+			status = i40e_write_phy_register_clause45(hw,
 							 I40E_PHY_COM_REG_PAGE,
 							 led_addr, phy_addr,
 							 led_reg);
@@ -4599,20 +4691,18 @@ i40e_status i40e_blink_phy_link_led(struct i40e_hw *hw,
 
 	if (time > 0 && interval > 0) {
 		for (i = 0; i < time * 1000; i += interval) {
-			status = i40e_read_phy_register(hw,
-							I40E_PHY_COM_REG_PAGE,
-							led_addr, phy_addr,
-							&led_reg);
+			status = i40e_read_phy_register_clause45(hw,
+						I40E_PHY_COM_REG_PAGE,
+						led_addr, phy_addr, &led_reg);
 			if (status)
 				goto restore_config;
 			if (led_reg & I40E_PHY_LED_MANUAL_ON)
 				led_reg = 0;
 			else
 				led_reg = I40E_PHY_LED_MANUAL_ON;
-			status = i40e_write_phy_register(hw,
-							 I40E_PHY_COM_REG_PAGE,
-							 led_addr, phy_addr,
-							 led_reg);
+			status = i40e_write_phy_register_clause45(hw,
+						I40E_PHY_COM_REG_PAGE,
+						led_addr, phy_addr, led_reg);
 			if (status)
 				goto restore_config;
 			msleep(interval);
@@ -4620,8 +4710,9 @@ i40e_status i40e_blink_phy_link_led(struct i40e_hw *hw,
 	}
 
 restore_config:
-	status = i40e_write_phy_register(hw, I40E_PHY_COM_REG_PAGE, led_addr,
-					 phy_addr, led_ctl);
+	status = i40e_write_phy_register_clause45(hw,
+						  I40E_PHY_COM_REG_PAGE,
+						  led_addr, phy_addr, led_ctl);
 
 phy_blinking_end:
 	return status;
@@ -4652,8 +4743,10 @@ i40e_status i40e_led_get_phy(struct i40e_hw *hw, u16 *led_addr,
 
 	for (gpio_led_port = 0; gpio_led_port < 3; gpio_led_port++,
 	     temp_addr++) {
-		status = i40e_read_phy_register(hw, I40E_PHY_COM_REG_PAGE,
-						temp_addr, phy_addr, &reg_val);
+		status = i40e_read_phy_register_clause45(hw,
+							 I40E_PHY_COM_REG_PAGE,
+							 temp_addr, phy_addr,
+							 &reg_val);
 		if (status)
 			return status;
 		*val = reg_val;
@@ -4686,41 +4779,42 @@ i40e_status i40e_led_set_phy(struct i40e_hw *hw, bool on,
 	i = rd32(hw, I40E_PFGEN_PORTNUM);
 	port_num = (u8)(i & I40E_PFGEN_PORTNUM_PORT_NUM_MASK);
 	phy_addr = i40e_get_phy_address(hw, port_num);
-
-	status = i40e_read_phy_register(hw, I40E_PHY_COM_REG_PAGE, led_addr,
-					phy_addr, &led_reg);
+	status = i40e_read_phy_register_clause45(hw, I40E_PHY_COM_REG_PAGE,
+						 led_addr, phy_addr, &led_reg);
 	if (status)
 		return status;
 	led_ctl = led_reg;
 	if (led_reg & I40E_PHY_LED_LINK_MODE_MASK) {
 		led_reg = 0;
-		status = i40e_write_phy_register(hw, I40E_PHY_COM_REG_PAGE,
-						 led_addr, phy_addr, led_reg);
+		status = i40e_write_phy_register_clause45(hw,
+							  I40E_PHY_COM_REG_PAGE,
+							  led_addr, phy_addr,
+							  led_reg);
 		if (status)
 			return status;
 	}
-	status = i40e_read_phy_register(hw, I40E_PHY_COM_REG_PAGE,
-					led_addr, phy_addr, &led_reg);
+	status = i40e_read_phy_register_clause45(hw, I40E_PHY_COM_REG_PAGE,
+						 led_addr, phy_addr, &led_reg);
 	if (status)
 		goto restore_config;
 	if (on)
 		led_reg = I40E_PHY_LED_MANUAL_ON;
 	else
 		led_reg = 0;
-	status = i40e_write_phy_register(hw, I40E_PHY_COM_REG_PAGE,
-					 led_addr, phy_addr, led_reg);
+	status = i40e_write_phy_register_clause45(hw, I40E_PHY_COM_REG_PAGE,
+						  led_addr, phy_addr, led_reg);
 	if (status)
 		goto restore_config;
 	if (mode & I40E_PHY_LED_MODE_ORIG) {
 		led_ctl = (mode & I40E_PHY_LED_MODE_MASK);
-		status = i40e_write_phy_register(hw,
+		status = i40e_write_phy_register_clause45(hw,
 						 I40E_PHY_COM_REG_PAGE,
 						 led_addr, phy_addr, led_ctl);
 	}
 	return status;
 restore_config:
-	status = i40e_write_phy_register(hw, I40E_PHY_COM_REG_PAGE, led_addr,
-					 phy_addr, led_ctl);
+	status = i40e_write_phy_register_clause45(hw, I40E_PHY_COM_REG_PAGE,
+						  led_addr, phy_addr, led_ctl);
 	return status;
 }
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_prototype.h b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
index 4660c5a..82dedc9 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_prototype.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
@@ -362,10 +362,14 @@ i40e_status i40e_aq_rx_ctl_write_register(struct i40e_hw *hw,
 				u32 reg_addr, u32 reg_val,
 				struct i40e_asq_cmd_details *cmd_details);
 void i40e_write_rx_ctl(struct i40e_hw *hw, u32 reg_addr, u32 reg_val);
-i40e_status i40e_read_phy_register(struct i40e_hw *hw, u8 page,
-				   u16 reg, u8 phy_addr, u16 *value);
-i40e_status i40e_write_phy_register(struct i40e_hw *hw, u8 page,
-				    u16 reg, u8 phy_addr, u16 value);
+i40e_status i40e_read_phy_register_clause22(struct i40e_hw *hw,
+					    u16 reg, u8 phy_addr, u16 *value);
+i40e_status i40e_write_phy_register_clause22(struct i40e_hw *hw,
+					     u16 reg, u8 phy_addr, u16 value);
+i40e_status i40e_read_phy_register_clause45(struct i40e_hw *hw,
+				u8 page, u16 reg, u8 phy_addr, u16 *value);
+i40e_status i40e_write_phy_register_clause45(struct i40e_hw *hw,
+				u8 page, u16 reg, u8 phy_addr, u16 value);
 u8 i40e_get_phy_address(struct i40e_hw *hw, u8 dev_num);
 i40e_status i40e_blink_phy_link_led(struct i40e_hw *hw,
 				    u32 time, u32 interval);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index d9a2660..671969c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -90,14 +90,23 @@ enum i40e_debug_mask {
 	I40E_DEBUG_ALL			= 0xFFFFFFFF
 };
 
-#define I40E_MDIO_STCODE                0
-#define I40E_MDIO_OPCODE_ADDRESS        0
-#define I40E_MDIO_OPCODE_WRITE          I40E_MASK(1, \
+#define I40E_MDIO_CLAUSE22_STCODE_MASK	I40E_MASK(1, \
+						  I40E_GLGEN_MSCA_STCODE_SHIFT)
+#define I40E_MDIO_CLAUSE22_OPCODE_WRITE_MASK	I40E_MASK(1, \
 						  I40E_GLGEN_MSCA_OPCODE_SHIFT)
-#define I40E_MDIO_OPCODE_READ_INC_ADDR  I40E_MASK(2, \
+#define I40E_MDIO_CLAUSE22_OPCODE_READ_MASK	I40E_MASK(2, \
 						  I40E_GLGEN_MSCA_OPCODE_SHIFT)
-#define I40E_MDIO_OPCODE_READ           I40E_MASK(3, \
+
+#define I40E_MDIO_CLAUSE45_STCODE_MASK	I40E_MASK(0, \
+						  I40E_GLGEN_MSCA_STCODE_SHIFT)
+#define I40E_MDIO_CLAUSE45_OPCODE_ADDRESS_MASK	I40E_MASK(0, \
+						  I40E_GLGEN_MSCA_OPCODE_SHIFT)
+#define I40E_MDIO_CLAUSE45_OPCODE_WRITE_MASK	I40E_MASK(1, \
 						  I40E_GLGEN_MSCA_OPCODE_SHIFT)
+#define I40E_MDIO_CLAUSE45_OPCODE_READ_INC_ADDR_MASK	I40E_MASK(2, \
+						I40E_GLGEN_MSCA_OPCODE_SHIFT)
+#define I40E_MDIO_CLAUSE45_OPCODE_READ_MASK	I40E_MASK(3, \
+						I40E_GLGEN_MSCA_OPCODE_SHIFT)
 
 #define I40E_PHY_COM_REG_PAGE                   0x1E
 #define I40E_PHY_LED_LINK_MODE_MASK             0xF0
-- 
2.9.3

[net-next 07/18] i40e: fix trivial typo in naming of i40e_sync_filters_subtask

[Jeff Kirsher]

From: Jacob Keller <jacob.e.keller@intel.com>

A comment incorrectly referred to i40e_vsi_sync_filters_subtask which
does not actually exist. Reference the correct function instead.

Change-ID: I6bd805c605741ffb6fe34377259bb0d597edfafd
Signed-off-by: Jacob Keller <jacob.e.keller@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_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index fe5939a..6832ab1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1211,12 +1211,12 @@ bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi)
 	 *    i40e_add_filter.
 	 *
 	 * 2) the only place where filters are actually removed is in
-	 *    i40e_vsi_sync_filters_subtask.
+	 *    i40e_sync_filters_subtask.
 	 *
 	 * Thus, we can simply use a boolean value, has_vlan_filters which we
 	 * will set to true when we add a VLAN filter in i40e_add_filter. Then
 	 * we have to perform the full search after deleting filters in
-	 * i40e_vsi_sync_filters_subtask, but we already have to search
+	 * i40e_sync_filters_subtask, but we already have to search
 	 * filters here and can perform the check at the same time. This
 	 * results in avoiding embedding a loop for VLAN mode inside another
 	 * loop over all the filters, and should maintain correctness as noted
-- 
2.9.3

[net-next 08/18] i40e: Add protocols over MCTP to i40e_aq_discover_capabilities

[Jeff Kirsher]

From: Piotr Raczynski <piotr.raczynski@intel.com>

Add logical_id to I40E_AQ_CAP_ID_MNG_MODE capability starting from major
version 2.

Change-ID: Idb29214b172ea5c70cbd45a99e6745c0215af7e4
Signed-off-by: Piotr Raczynski <piotr.raczynski@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 | 8 ++++++++
 drivers/net/ethernet/intel/i40e/i40e_type.h   | 4 ++++
 drivers/net/ethernet/intel/i40evf/i40e_type.h | 4 ++++
 3 files changed, 16 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 5cef393..e83e8e3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -3147,6 +3147,14 @@ static void i40e_parse_discover_capabilities(struct i40e_hw *hw, void *buff,
 			break;
 		case I40E_AQ_CAP_ID_MNG_MODE:
 			p->management_mode = number;
+			if (major_rev > 1) {
+				p->mng_protocols_over_mctp = logical_id;
+				i40e_debug(hw, I40E_DEBUG_INIT,
+					   "HW Capability: Protocols over MCTP = %d\n",
+					   p->mng_protocols_over_mctp);
+			} else {
+				p->mng_protocols_over_mctp = 0;
+			}
 			break;
 		case I40E_AQ_CAP_ID_NPAR_ACTIVE:
 			p->npar_enable = number;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 671969c..bd1ffae 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -263,6 +263,10 @@ struct i40e_hw_capabilities {
 #define I40E_NVM_IMAGE_TYPE_UDP_CLOUD	0x3
 
 	u32  management_mode;
+	u32  mng_protocols_over_mctp;
+#define I40E_MNG_PROTOCOL_PLDM		0x2
+#define I40E_MNG_PROTOCOL_OEM_COMMANDS	0x4
+#define I40E_MNG_PROTOCOL_NCSI		0x8
 	u32  npar_enable;
 	u32  os2bmc;
 	u32  valid_functions;
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index ca7afe5..515484c 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -237,6 +237,10 @@ struct i40e_hw_capabilities {
 #define I40E_NVM_IMAGE_TYPE_UDP_CLOUD	0x3
 
 	u32  management_mode;
+	u32  mng_protocols_over_mctp;
+#define I40E_MNG_PROTOCOL_PLDM		0x2
+#define I40E_MNG_PROTOCOL_OEM_COMMANDS	0x4
+#define I40E_MNG_PROTOCOL_NCSI		0x8
 	u32  npar_enable;
 	u32  os2bmc;
 	u32  valid_functions;
-- 
2.9.3

[net-next 09/18] i40e: fix panic on SPARC while changing num of desc

[Jeff Kirsher]

From: Tushar Dave <tushar.n.dave@oracle.com>

On SPARC, writel() should not be used to write directly to memory
address but only to memory mapped I/O address otherwise it causes
data access exception.

Commit 147e81ec75689 ("i40e: Test memory before ethtool alloc
succeeds") introduced a code that uses memory address to fake the HW
tail address and attempt to write to that address using writel()
causes kernel panic on SPARC. The issue is reproduced while changing
number of descriptors using ethtool.

This change resolves the panic by using HW read-only memory mapped
I/O register to fake HW tail address instead memory address.

e.g.
> ethtool -G eth2 tx 2048 rx 2048
i40e 0000:03:00.2 eth2: Changing Tx descriptor count from 512 to 2048.
i40e 0000:03:00.2 eth2: Changing Rx descriptor count from 512 to 2048
sun4v_data_access_exception: ADDR[fff8001f9734a000] CTX[0000]
TYPE[0004], going.
              \|/ ____ \|/
              "@'/ .. \`@"
              /_| \__/ |_\
                 \__U_/
ethtool(3273): Dax [#1]
CPU: 9 PID: 3273 Comm: ethtool Tainted: G            E
4.8.0-linux-net_temp+ #7
task: fff8001f96d7a660 task.stack: fff8001f97348000
TSTATE: 0000009911001601 TPC: 00000000103189e4 TNPC: 00000000103189e8 Y:
00000000    Tainted: G            E
TPC: <i40e_alloc_rx_buffers+0x124/0x260 [i40e]>
g0: fff8001f4eb64000 g1: 00000000000007ff g2: fff8001f9734b92c g3:
00203e0000000000
g4: fff8001f96d7a660 g5: fff8001fa6704000 g6: fff8001f97348000 g7:
0000000000000001
o0: 0006000046706928 o1: 00000000db3e2000 o2: fff8001f00000000 o3:
0000000000002000
o4: 0000000000002000 o5: 0000000000000001 sp: fff8001f9734afc1 ret_pc:
0000000010318a64
RPC: <i40e_alloc_rx_buffers+0x1a4/0x260 [i40e]>
l0: fff8001f4e8bffe0 l1: fff8001f4e8cffe0 l2: 00000000000007ff l3:
00000000ff000000
l4: 0000000000ff0000 l5: 000000000000ff00 l6: 0000000000cda6a8 l7:
0000000000e822f0
i0: fff8001f96380000 i1: 0000000000000000 i2: 00203edb00000000 i3:
0006000046706928
i4: 0000000002086320 i5: 0000000000e82370 i6: fff8001f9734b071 i7:
00000000103062d4
I7: <i40e_set_ringparam+0x3b4/0x540 [i40e]>
Call Trace:
 [00000000103062d4] i40e_set_ringparam+0x3b4/0x540 [i40e]
 [000000000094e2f8] dev_ethtool+0x898/0xbe0
 [0000000000965570] dev_ioctl+0x250/0x300
 [0000000000923800] sock_do_ioctl+0x40/0x60
 [000000000092427c] sock_ioctl+0x7c/0x280
 [00000000005ef040] vfs_ioctl+0x20/0x60
 [00000000005ef5d4] do_vfs_ioctl+0x194/0x4c0
 [00000000005ef974] SyS_ioctl+0x74/0xa0
 [0000000000406214] linux_sparc_syscall+0x34/0x44
Disabling lock debugging due to kernel taint
Caller[00000000103062d4]: i40e_set_ringparam+0x3b4/0x540 [i40e]
Caller[000000000094e2f8]: dev_ethtool+0x898/0xbe0
Caller[0000000000965570]: dev_ioctl+0x250/0x300
Caller[0000000000923800]: sock_do_ioctl+0x40/0x60
Caller[000000000092427c]: sock_ioctl+0x7c/0x280
Caller[00000000005ef040]: vfs_ioctl+0x20/0x60
Caller[00000000005ef5d4]: do_vfs_ioctl+0x194/0x4c0
Caller[00000000005ef974]: SyS_ioctl+0x74/0xa0
Caller[0000000000406214]: linux_sparc_syscall+0x34/0x44
Caller[0000000000107154]: 0x107154
Instruction DUMP: e43620c8
 e436204a  c45e2038
<c2a083a0> 82102000
 81cfe008  90086001
 82102000  81cfe008

Kernel panic - not syncing: Fatal exception

Signed-off-by: Tushar Dave <tushar.n.dave@oracle.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_ethtool.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index f99c135..92a2f03 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1217,6 +1217,7 @@ static int i40e_set_ringparam(struct net_device *netdev,
 {
 	struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
+	struct i40e_hw *hw = &np->vsi->back->hw;
 	struct i40e_vsi *vsi = np->vsi;
 	struct i40e_pf *pf = vsi->back;
 	u32 new_rx_count, new_tx_count;
@@ -1309,10 +1310,6 @@ static int i40e_set_ringparam(struct net_device *netdev,
 		}
 
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			/* this is to allow wr32 to have something to write to
-			 * during early allocation of Rx buffers
-			 */
-			u32 __iomem faketail = 0;
 			struct i40e_ring *ring;
 			u16 unused;
 
@@ -1324,7 +1321,10 @@ static int i40e_set_ringparam(struct net_device *netdev,
 			 */
 			rx_rings[i].desc = NULL;
 			rx_rings[i].rx_bi = NULL;
-			rx_rings[i].tail = (u8 __iomem *)&faketail;
+			/* this is to allow wr32 to have something to write to
+			 * during early allocation of Rx buffers
+			 */
+			rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
 			err = i40e_setup_rx_descriptors(&rx_rings[i]);
 			if (err)
 				goto rx_unwind;
-- 
2.9.3

[net-next 10/18] i40evf: Move some i40evf_reset_task code to separate function

[Jeff Kirsher]

From: Joe Perches <joe@perches.com>

The i40evf_reset_task function is a couple hundred lines and it has
a separable block that disables VF.  Move that block to a new
i40evf_disable_vf function to shorten i40evf_reset_task a bit.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 86 +++++++++++++------------
 1 file changed, 44 insertions(+), 42 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 7bbb55f..f04ac36 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1693,6 +1693,49 @@ static void i40evf_watchdog_task(struct work_struct *work)
 	schedule_work(&adapter->adminq_task);
 }
 
+static void i40evf_disable_vf(struct i40evf_adapter *adapter)
+{
+	struct i40evf_mac_filter *f, *ftmp;
+	struct i40evf_vlan_filter *fv, *fvtmp;
+
+	adapter->flags |= I40EVF_FLAG_PF_COMMS_FAILED;
+
+	if (netif_running(adapter->netdev)) {
+		set_bit(__I40E_DOWN, &adapter->vsi.state);
+		netif_carrier_off(adapter->netdev);
+		netif_tx_disable(adapter->netdev);
+		adapter->link_up = false;
+		i40evf_napi_disable_all(adapter);
+		i40evf_irq_disable(adapter);
+		i40evf_free_traffic_irqs(adapter);
+		i40evf_free_all_tx_resources(adapter);
+		i40evf_free_all_rx_resources(adapter);
+	}
+
+	/* Delete all of the filters, both MAC and VLAN. */
+	list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
+		list_del(&f->list);
+		kfree(f);
+	}
+
+	list_for_each_entry_safe(fv, fvtmp, &adapter->vlan_filter_list, list) {
+		list_del(&fv->list);
+		kfree(fv);
+	}
+
+	i40evf_free_misc_irq(adapter);
+	i40evf_reset_interrupt_capability(adapter);
+	i40evf_free_queues(adapter);
+	i40evf_free_q_vectors(adapter);
+	kfree(adapter->vf_res);
+	i40evf_shutdown_adminq(&adapter->hw);
+	adapter->netdev->flags &= ~IFF_UP;
+	clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section);
+	adapter->flags &= ~I40EVF_FLAG_RESET_PENDING;
+	adapter->state = __I40EVF_DOWN;
+	dev_info(&adapter->pdev->dev, "Reset task did not complete, VF disabled\n");
+}
+
 #define I40EVF_RESET_WAIT_MS 10
 #define I40EVF_RESET_WAIT_COUNT 500
 /**
@@ -1758,50 +1801,9 @@ static void i40evf_reset_task(struct work_struct *work)
 	pci_set_master(adapter->pdev);
 
 	if (i == I40EVF_RESET_WAIT_COUNT) {
-		struct i40evf_mac_filter *ftmp;
-		struct i40evf_vlan_filter *fv, *fvtmp;
-
-		/* reset never finished */
 		dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n",
 			reg_val);
-		adapter->flags |= I40EVF_FLAG_PF_COMMS_FAILED;
-
-		if (netif_running(adapter->netdev)) {
-			set_bit(__I40E_DOWN, &adapter->vsi.state);
-			netif_carrier_off(netdev);
-			netif_tx_disable(netdev);
-			adapter->link_up = false;
-			i40evf_napi_disable_all(adapter);
-			i40evf_irq_disable(adapter);
-			i40evf_free_traffic_irqs(adapter);
-			i40evf_free_all_tx_resources(adapter);
-			i40evf_free_all_rx_resources(adapter);
-		}
-
-		/* Delete all of the filters, both MAC and VLAN. */
-		list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list,
-					 list) {
-			list_del(&f->list);
-			kfree(f);
-		}
-
-		list_for_each_entry_safe(fv, fvtmp, &adapter->vlan_filter_list,
-					 list) {
-			list_del(&fv->list);
-			kfree(fv);
-		}
-
-		i40evf_free_misc_irq(adapter);
-		i40evf_reset_interrupt_capability(adapter);
-		i40evf_free_queues(adapter);
-		i40evf_free_q_vectors(adapter);
-		kfree(adapter->vf_res);
-		i40evf_shutdown_adminq(hw);
-		adapter->netdev->flags &= ~IFF_UP;
-		clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section);
-		adapter->flags &= ~I40EVF_FLAG_RESET_PENDING;
-		adapter->state = __I40EVF_DOWN;
-		dev_info(&adapter->pdev->dev, "Reset task did not complete, VF disabled\n");
+		i40evf_disable_vf(adapter);
 		return; /* Do not attempt to reinit. It's dead, Jim. */
 	}
 
-- 
2.9.3

[net-next 11/18] i40evf: check for msix_entries null dereference

[Jeff Kirsher]

From: Alan Brady <alan.brady@intel.com>

It is possible for msix_entries to be freed by a previous suspend/remove
before a VF is closed.  This patch fixes the issue by checking for NULL
before dereferencing msix_entries and returning early in the case where
it is NULL within the i40evf_close code path.  Without this patch it is
possible to trigger a kernel panic through NULL dereference.

Change-ID: I92a2746e82533a889e25f91578eac9abd0388ae2
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index f04ac36..420e545 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -631,6 +631,9 @@ static void i40evf_free_traffic_irqs(struct i40evf_adapter *adapter)
 {
 	int vector, irq_num, q_vectors;
 
+	if (!adapter->msix_entries)
+		return;
+
 	q_vectors = adapter->num_msix_vectors - NONQ_VECS;
 
 	for (vector = 0; vector < q_vectors; vector++) {
@@ -1443,6 +1446,9 @@ static void i40evf_free_q_vectors(struct i40evf_adapter *adapter)
  **/
 void i40evf_reset_interrupt_capability(struct i40evf_adapter *adapter)
 {
+	if (!adapter->msix_entries)
+		return;
+
 	pci_disable_msix(adapter->pdev);
 	kfree(adapter->msix_entries);
 	adapter->msix_entries = NULL;
-- 
2.9.3

[net-next 12/18] i40e: Remove unreachable code

[Jeff Kirsher]

From: Henry Tieman <henry.w.tieman@intel.com>

The code at the end of i40e_read_phy_register_clause22() contained
unreachable code and redundant control statements.

This change removes the unreachable code. And deletes the redundant
goto statement and if statement.

Change-ID: I713032b1585396f40f903cbcfdea987abd874400
Signed-off-by: Henry Tieman <henry.w.tieman@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 | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index e83e8e3..fc7ce02 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -4439,19 +4439,12 @@ i40e_status i40e_read_phy_register_clause22(struct i40e_hw *hw,
 	if (status) {
 		i40e_debug(hw, I40E_DEBUG_PHY,
 			   "PHY: Can't write command to external PHY.\n");
-		goto phy_read_end;
-	}
-
-	if (!status) {
+	} else {
 		command = rd32(hw, I40E_GLGEN_MSRWD(port_num));
 		*value = (command & I40E_GLGEN_MSRWD_MDIRDDATA_MASK) >>
 			 I40E_GLGEN_MSRWD_MDIRDDATA_SHIFT;
-	} else {
-		i40e_debug(hw, I40E_DEBUG_PHY,
-			   "PHY: Can't read register value from external PHY.\n");
 	}
 
-phy_read_end:
 	return status;
 }
 
-- 
2.9.3

[net-next 13/18] i40e: Pass unknown PHY type for unknown PHYs

[Jeff Kirsher]

From: Henry Tieman <henry.w.tieman@intel.com>

The PHY type value for unrecognized PHYs and cables was changed
based on firmware version number. Newer hardware use lower firmware
version numbers and this was causing some PHYs to be identified
as type 0x16 instead of 0xe (unknown).

Without this patch, newer card will incorrectly identify unknown
PHYs and cables.

This change adds hardware type to the check for firmware version
so the PHY type is reported correctly.

Change-ID: I0723cbfd263c76fc73ff1a5275d1639051376c9a
Signed-off-by: Henry Tieman <henry.w.tieman@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 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index fc7ce02..f6fee79 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -1854,7 +1854,8 @@ i40e_status i40e_aq_get_link_info(struct i40e_hw *hw,
 	else
 		hw_link_info->lse_enable = false;
 
-	if ((hw->aq.fw_maj_ver < 4 || (hw->aq.fw_maj_ver == 4 &&
+	if ((hw->mac.type == I40E_MAC_XL710) &&
+	    (hw->aq.fw_maj_ver < 4 || (hw->aq.fw_maj_ver == 4 &&
 	     hw->aq.fw_min_ver < 40)) && hw_link_info->phy_type == 0xE)
 		hw_link_info->phy_type = I40E_PHY_TYPE_10GBASE_SFPP_CU;
 
-- 
2.9.3

[net-next 14/18] i40evf: protect against NULL msix_entries and q_vectors pointers

[Jeff Kirsher]

From: Jacob Keller <jacob.e.keller@intel.com>

Update the functions which free msix_entries and q_vectors so that they
are safe against NULL values. This allows calling code to not care
whether these have already been freed when disabling and freeing them.

Change-ID: I31bfd1c0da18023d971b618edc6fb049721f3298
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 420e545..ca85021 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -207,6 +207,9 @@ static void i40evf_misc_irq_disable(struct i40evf_adapter *adapter)
 {
 	struct i40e_hw *hw = &adapter->hw;
 
+	if (!adapter->msix_entries)
+		return;
+
 	wr32(hw, I40E_VFINT_DYN_CTL01, 0);
 
 	/* read flush */
@@ -654,6 +657,9 @@ static void i40evf_free_misc_irq(struct i40evf_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
 
+	if (!adapter->msix_entries)
+		return;
+
 	free_irq(adapter->msix_entries[0].vector, netdev);
 }
 
@@ -1428,6 +1434,9 @@ static void i40evf_free_q_vectors(struct i40evf_adapter *adapter)
 	int q_idx, num_q_vectors;
 	int napi_vectors;
 
+	if (!adapter->q_vectors)
+		return;
+
 	num_q_vectors = adapter->num_msix_vectors - NONQ_VECS;
 	napi_vectors = adapter->num_active_queues;
 
@@ -1437,6 +1446,7 @@ static void i40evf_free_q_vectors(struct i40evf_adapter *adapter)
 			netif_napi_del(&q_vector->napi);
 	}
 	kfree(adapter->q_vectors);
+	adapter->q_vectors = NULL;
 }
 
 /**
@@ -2862,12 +2872,10 @@ static void i40evf_remove(struct pci_dev *pdev)
 		msleep(50);
 	}
 
-	if (adapter->msix_entries) {
-		i40evf_misc_irq_disable(adapter);
-		i40evf_free_misc_irq(adapter);
-		i40evf_reset_interrupt_capability(adapter);
-		i40evf_free_q_vectors(adapter);
-	}
+	i40evf_misc_irq_disable(adapter);
+	i40evf_free_misc_irq(adapter);
+	i40evf_reset_interrupt_capability(adapter);
+	i40evf_free_q_vectors(adapter);
 
 	if (adapter->watchdog_timer.function)
 		del_timer_sync(&adapter->watchdog_timer);
-- 
2.9.3

[net-next 15/18] i40e: Fix for ethtool Supported link modes

[Jeff Kirsher]

From: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>

This patch fixes the problem where the ethtool Supported link
modes list backplane interfaces on X722 devices for 10GbE with
SFP+ and Cortina retimer. This patch fixes the problem by setting
and using a flag for this particular device since the backplane
interface is only between the internal PHY and the retimer and it
should not be seen by the user as they cannot use it.
Without this patch, the user wrongly thinks that backplane interfaces
are supported on their device when they actually are not.

Change-ID: I3882bc2928431d48a2db03a51a713a1f681a79e9
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@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.h         |  1 +
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 16 ++++++++++------
 drivers/net/ethernet/intel/i40e/i40e_main.c    |  3 ++-
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 29c2318..4cb8fb3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -359,6 +359,7 @@ struct i40e_pf {
 #define I40E_FLAG_HAVE_10GBASET_PHY		BIT_ULL(48)
 #define I40E_FLAG_PF_MAC			BIT_ULL(50)
 #define I40E_FLAG_TRUE_PROMISC_SUPPORT		BIT_ULL(51)
+#define I40E_FLAG_HAVE_CRT_RETIMER		BIT_ULL(52)
 
 	/* tracks features that get auto disabled by errors */
 	u64 auto_disable_flags;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 92a2f03..9500e7b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -345,11 +345,13 @@ static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 			*advertising |= ADVERTISED_20000baseKR2_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) {
-		*supported |= SUPPORTED_10000baseKR_Full |
-			      SUPPORTED_Autoneg;
+		if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+			*supported |= SUPPORTED_10000baseKR_Full |
+				      SUPPORTED_Autoneg;
 		*advertising |= ADVERTISED_Autoneg;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
-			*advertising |= ADVERTISED_10000baseKR_Full;
+			if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+				*advertising |= ADVERTISED_10000baseKR_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 		*supported |= SUPPORTED_10000baseKX4_Full |
@@ -359,11 +361,13 @@ static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 			*advertising |= ADVERTISED_10000baseKX4_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) {
-		*supported |= SUPPORTED_1000baseKX_Full |
-			      SUPPORTED_Autoneg;
+		if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+			*supported |= SUPPORTED_1000baseKX_Full |
+				      SUPPORTED_Autoneg;
 		*advertising |= ADVERTISED_Autoneg;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
-			*advertising |= ADVERTISED_1000baseKX_Full;
+			if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+				*advertising |= ADVERTISED_1000baseKX_Full;
 	}
 }
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 6832ab1..17dde85 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -11302,7 +11302,8 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if ((pf->hw.device_id == I40E_DEV_ID_10G_BASE_T) ||
 	    (pf->hw.device_id == I40E_DEV_ID_10G_BASE_T4))
 		pf->flags |= I40E_FLAG_HAVE_10GBASET_PHY;
-
+	if (pf->hw.device_id == I40E_DEV_ID_SFP_I_X722)
+		pf->flags |= I40E_FLAG_HAVE_CRT_RETIMER;
 	/* print a string summarizing features */
 	i40e_print_features(pf);
 
-- 
2.9.3

[net-next 16/18] i40e: set broadcast promiscuous mode for each active VLAN

[Jeff Kirsher]

From: Jacob Keller <jacob.e.keller@intel.com>

A previous workaround added to ensure receipt of all broadcast frames
incorrectly set the broadcast promiscuous mode unconditionally
regardless of active VLAN status.

Replace this partial workaround with a complete solution that sets the
broadcast promiscuous filters in i40e_sync_vsi_filters. This new method
sets the promiscuous mode based on when broadcast filters are added or
removed.

I40E_VLAN_ANY will request a broadcast filter for all VLANs, (as we're
in untagged mode) while a broadcast filter on a specific VLAN will only
request broadcast for that VLAN.

Thus, we restore addition of broadcast filter to the array, but we add
special handling for these such that they enable the broadcast
promiscuous mode instead of being sent as regular filters.

The end result is that we will correctly receive all broadcast packets
(even those with a *source* address equal to the broadcast address) but
will not receive packets for which we don't have an active VLAN filter.

Change-ID: I7d0585c5cec1a5bf55bf533b42e5e817d5db6a2d
Signed-off-by: Jacob Keller <jacob.e.keller@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      |  34 +++++++
 drivers/net/ethernet/intel/i40e/i40e_main.c        | 106 +++++++++++++++++----
 drivers/net/ethernet/intel/i40e/i40e_prototype.h   |   3 +
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |   7 ++
 4 files changed, 129 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index f6fee79..eb392d6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -2170,6 +2170,40 @@ enum i40e_status_code i40e_aq_set_vsi_uc_promisc_on_vlan(struct i40e_hw *hw,
 }
 
 /**
+ * i40e_aq_set_vsi_bc_promisc_on_vlan
+ * @hw: pointer to the hw struct
+ * @seid: vsi number
+ * @enable: set broadcast promiscuous enable/disable for a given VLAN
+ * @vid: The VLAN tag filter - capture any broadcast packet with this VLAN tag
+ * @cmd_details: pointer to command details structure or NULL
+ **/
+i40e_status i40e_aq_set_vsi_bc_promisc_on_vlan(struct i40e_hw *hw,
+				u16 seid, bool enable, u16 vid,
+				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_BROADCAST;
+
+	cmd->promiscuous_flags = cpu_to_le16(flags);
+	cmd->valid_flags = cpu_to_le16(I40E_AQC_SET_VSI_PROMISC_BROADCAST);
+	cmd->seid = cpu_to_le16(seid);
+	cmd->vlan_tag = cpu_to_le16(vid | I40E_AQC_SET_VSI_VLAN_VALID);
+
+	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
+
+	return status;
+}
+
+/**
  * i40e_aq_set_vsi_broadcast
  * @hw: pointer to the hw struct
  * @seid: vsi number
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 17dde85..594856d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1245,13 +1245,6 @@ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
 	if (!vsi || !macaddr)
 		return NULL;
 
-	/* Do not allow broadcast filter to be added since broadcast filter
-	 * is added as part of add VSI for any newly created VSI except
-	 * FDIR VSI
-	 */
-	if (is_broadcast_ether_addr(macaddr))
-		return NULL;
-
 	f = i40e_find_filter(vsi, macaddr, vlan);
 	if (!f) {
 		f = kzalloc(sizeof(*f), GFP_ATOMIC);
@@ -1857,6 +1850,47 @@ void i40e_aqc_add_filters(struct i40e_vsi *vsi, const char *vsi_name,
 }
 
 /**
+ * i40e_aqc_broadcast_filter - Set promiscuous broadcast flags
+ * @vsi: pointer to the VSI
+ * @f: filter data
+ *
+ * This function sets or clears the promiscuous broadcast flags for VLAN
+ * filters in order to properly receive broadcast frames. Assumes that only
+ * broadcast filters are passed.
+ **/
+static
+void i40e_aqc_broadcast_filter(struct i40e_vsi *vsi, const char *vsi_name,
+			       struct i40e_mac_filter *f)
+{
+	bool enable = f->state == I40E_FILTER_NEW;
+	struct i40e_hw *hw = &vsi->back->hw;
+	i40e_status aq_ret;
+
+	if (f->vlan == I40E_VLAN_ANY) {
+		aq_ret = i40e_aq_set_vsi_broadcast(hw,
+						   vsi->seid,
+						   enable,
+						   NULL);
+	} else {
+		aq_ret = i40e_aq_set_vsi_bc_promisc_on_vlan(hw,
+							    vsi->seid,
+							    enable,
+							    f->vlan,
+							    NULL);
+	}
+
+	if (aq_ret) {
+		dev_warn(&vsi->back->pdev->dev,
+			 "Error %s setting broadcast promiscuous mode on %s\n",
+			 i40e_aq_str(hw, hw->aq.asq_last_status),
+			 vsi_name);
+		f->state = I40E_FILTER_FAILED;
+	} else if (enable) {
+		f->state = I40E_FILTER_ACTIVE;
+	}
+}
+
+/**
  * i40e_sync_vsi_filters - Update the VSI filter list to the HW
  * @vsi: ptr to the VSI
  *
@@ -2004,6 +2038,17 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
 		hlist_for_each_entry_safe(f, h, &tmp_del_list, hlist) {
 			cmd_flags = 0;
 
+			/* handle broadcast filters by updating the broadcast
+			 * promiscuous flag instead of deleting a MAC filter.
+			 */
+			if (is_broadcast_ether_addr(f->macaddr)) {
+				i40e_aqc_broadcast_filter(vsi, vsi_name, f);
+
+				hlist_del(&f->hlist);
+				kfree(f);
+				continue;
+			}
+
 			/* add to delete list */
 			ether_addr_copy(del_list[num_del].mac_addr, f->macaddr);
 			if (f->vlan == I40E_VLAN_ANY) {
@@ -2060,12 +2105,25 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
 			goto err_no_memory;
 
 		num_add = 0;
-		hlist_for_each_entry(f, &tmp_add_list, hlist) {
+		hlist_for_each_entry_safe(f, h, &tmp_add_list, hlist) {
 			if (test_bit(__I40E_FILTER_OVERFLOW_PROMISC,
 				     &vsi->state)) {
 				f->state = I40E_FILTER_FAILED;
 				continue;
 			}
+
+			/* handle broadcast filters by updating the broadcast
+			 * promiscuous flag instead of adding a MAC filter.
+			 */
+			if (is_broadcast_ether_addr(f->macaddr)) {
+				u64 key = i40e_addr_to_hkey(f->macaddr);
+				i40e_aqc_broadcast_filter(vsi, vsi_name, f);
+
+				hlist_del(&f->hlist);
+				hash_add(vsi->mac_filter_hash, &f->hlist, key);
+				continue;
+			}
+
 			/* add to add array */
 			if (num_add == 0)
 				add_head = f;
@@ -9178,6 +9236,7 @@ static int i40e_config_netdev(struct i40e_vsi *vsi)
 	struct i40e_hw *hw = &pf->hw;
 	struct i40e_netdev_priv *np;
 	struct net_device *netdev;
+	u8 broadcast[ETH_ALEN];
 	u8 mac_addr[ETH_ALEN];
 	int etherdev_size;
 
@@ -9246,6 +9305,24 @@ static int i40e_config_netdev(struct i40e_vsi *vsi)
 		spin_unlock_bh(&vsi->mac_filter_hash_lock);
 	}
 
+	/* Add the broadcast filter so that we initially will receive
+	 * broadcast packets. Note that when a new VLAN is first added the
+	 * driver will convert all filters marked I40E_VLAN_ANY into VLAN
+	 * specific filters as part of transitioning into "vlan" operation.
+	 * When more VLANs are added, the driver will copy each existing MAC
+	 * filter and add it for the new VLAN.
+	 *
+	 * Broadcast filters are handled specially by
+	 * i40e_sync_filters_subtask, as the driver must to set the broadcast
+	 * promiscuous bit instead of adding this directly as a MAC/VLAN
+	 * filter. The subtask will update the correct broadcast promiscuous
+	 * bits as VLANs become active or inactive.
+	 */
+	eth_broadcast_addr(broadcast);
+	spin_lock_bh(&vsi->mac_filter_hash_lock);
+	i40e_add_filter(vsi, broadcast, I40E_VLAN_ANY);
+	spin_unlock_bh(&vsi->mac_filter_hash_lock);
+
 	ether_addr_copy(netdev->dev_addr, mac_addr);
 	ether_addr_copy(netdev->perm_addr, mac_addr);
 
@@ -9328,7 +9405,6 @@ int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi)
 static int i40e_add_vsi(struct i40e_vsi *vsi)
 {
 	int ret = -ENODEV;
-	i40e_status aq_ret = 0;
 	struct i40e_pf *pf = vsi->back;
 	struct i40e_hw *hw = &pf->hw;
 	struct i40e_vsi_context ctxt;
@@ -9518,18 +9594,6 @@ static int i40e_add_vsi(struct i40e_vsi *vsi)
 		vsi->seid = ctxt.seid;
 		vsi->id = ctxt.vsi_number;
 	}
-	/* Except FDIR VSI, for all othet VSI set the broadcast filter */
-	if (vsi->type != I40E_VSI_FDIR) {
-		aq_ret = i40e_aq_set_vsi_broadcast(hw, vsi->seid, true, NULL);
-		if (aq_ret) {
-			ret = i40e_aq_rc_to_posix(aq_ret,
-						  hw->aq.asq_last_status);
-			dev_info(&pf->pdev->dev,
-				 "set brdcast promisc failed, err %s, aq_err %s\n",
-				 i40e_stat_str(hw, aq_ret),
-				 i40e_aq_str(hw, hw->aq.asq_last_status));
-		}
-	}
 
 	vsi->active_filters = 0;
 	clear_bit(__I40E_FILTER_OVERFLOW_PROMISC, &vsi->state);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_prototype.h b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
index 82dedc9..37d67e7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_prototype.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
@@ -144,6 +144,9 @@ enum i40e_status_code i40e_aq_set_vsi_uc_promisc_on_vlan(struct i40e_hw *hw,
 							 u16 seid, bool enable,
 							 u16 vid,
 				struct i40e_asq_cmd_details *cmd_details);
+i40e_status i40e_aq_set_vsi_bc_promisc_on_vlan(struct i40e_hw *hw,
+				u16 seid, bool enable, u16 vid,
+				struct i40e_asq_cmd_details *cmd_details);
 i40e_status i40e_aq_set_vsi_vlan_promisc(struct i40e_hw *hw,
 				u16 seid, bool enable,
 				struct i40e_asq_cmd_details *cmd_details);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 46908c0..05ed49b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -674,6 +674,7 @@ static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
 	}
 	if (type == I40E_VSI_SRIOV) {
 		u64 hena = i40e_pf_get_default_rss_hena(pf);
+		u8 broadcast[ETH_ALEN];
 
 		vf->lan_vsi_idx = vsi->idx;
 		vf->lan_vsi_id = vsi->id;
@@ -696,6 +697,12 @@ static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
 					 "Could not add MAC filter %pM for VF %d\n",
 					vf->default_lan_addr.addr, vf->vf_id);
 		}
+		eth_broadcast_addr(broadcast);
+		f = i40e_add_filter(vsi, broadcast,
+				    vf->port_vlan_id ? vf->port_vlan_id : -1);
+		if (!f)
+			dev_info(&pf->pdev->dev,
+				 "Could not allocate VF broadcast filter\n");
 		spin_unlock_bh(&vsi->mac_filter_hash_lock);
 		i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id),
 				  (u32)hena);
-- 
2.9.3

[net-next 17/18] i40e/i40evf: replace for memcpy with single memcpy call in ethtool

[Jeff Kirsher]

From: Jacob Keller <jacob.e.keller@intel.com>

memcpy replaced with single memcpy call in ethtool.

Change-ID: I3f5bef6bcc593412c56592c6459784db41575a0a
Signed-off-by: Jacob Keller <jacob.e.keller@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_ethtool.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 9500e7b..76753e1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1536,10 +1536,8 @@ static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 
 	switch (stringset) {
 	case ETH_SS_TEST:
-		for (i = 0; i < I40E_TEST_LEN; i++) {
-			memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
-			data += ETH_GSTRING_LEN;
-		}
+		memcpy(data, i40e_gstrings_test,
+		       I40E_TEST_LEN * ETH_GSTRING_LEN);
 		break;
 	case ETH_SS_STATS:
 		for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
@@ -1623,18 +1621,12 @@ static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 		/* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
 		break;
 	case ETH_SS_PRIV_FLAGS:
-		for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
-			memcpy(data, i40e_priv_flags_strings[i],
-			       ETH_GSTRING_LEN);
-			data += ETH_GSTRING_LEN;
-		}
-		if (pf->hw.pf_id == 0) {
-			for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
-				memcpy(data, i40e_gl_priv_flags_strings[i],
-				       ETH_GSTRING_LEN);
-				data += ETH_GSTRING_LEN;
-			}
-		}
+		memcpy(data, i40e_priv_flags_strings,
+		       I40E_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
+		data += I40E_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN;
+		if (pf->hw.pf_id == 0)
+			memcpy(data, i40e_gl_priv_flags_strings,
+			       I40E_GL_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
 		break;
 	default:
 		break;
-- 
2.9.3

[net-next 18/18] i40e: change message to only appear when extra debug info is wanted

[Jeff Kirsher]

From: Carolyn Wyborny <carolyn.wyborny@intel.com>

This patch changes an X722 informational message so that it only
appears when extra messages are desired.  Without this patch,
on X722 devices, this message appears at load, potentially causing
unnecessary alarm.

Change-ID: I94f7aae15dc5b2723cc9728c630c72538a3e670e
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@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_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 594856d..5777e49 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3579,7 +3579,7 @@ static irqreturn_t i40e_intr(int irq, void *data)
 	    (ena_mask & I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK)) {
 		ena_mask &= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK;
 		icr0 &= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK;
-		dev_info(&pf->pdev->dev, "cleared PE_CRITERR\n");
+		dev_dbg(&pf->pdev->dev, "cleared PE_CRITERR\n");
 	}
 
 	/* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
-- 
2.9.3

Re: [net-next 00/18][pull request] 40GbE Intel Wired LAN Driver Updates 2016-12-02

[David Miller]

From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Sat,  3 Dec 2016 01:19:12 -0800

> This series contains updates to i40e and i40evf only.

Pulled, thanks Jeff.