[net-next 00/14][pull request] Intel Wired LAN Driver Updates 2015-04-14

[net-next 00/14][pull request] Intel Wired LAN Driver Updates 2015-04-14

[Jeff Kirsher]

This series contains updates to i40e and i40evf.

Mitch provides a fix for i40e, where VFs were gone and the associated
VSI's had been removed and the rings were not stopped, which in some
circumstances cased memory corruption or DMAR errors.  So stop all the
rings associated with each VF before releasing its resources.  Also
cleaned up a poorly indented piece of code.  Fixes VF link state, where
VF devices were assuming link is up unless told otherwise, which means
that VFs instantiated on a PF with no link, would report the wrong state.

Anjali adds support to add Flow director Sideband rules for a VF from it's
PF.  Fixes a recently discovered hardware issue, where after a VFLR
hardware might be indicating to us a reset completion little too early, so
wait another 10 msec for cache to be cleaned up.

Jesse enables the user to dump the internal hardware state for better
debugging by allowing a bash script to acquire information about the
internal hardware state.  The data output to the kernel log is collected
by the script and can then be sent to Intel.  Also fixed a possible
failure path to allocate memory that was found by smatch.  Cleaned up
unused local variables.

The following are changes since commit f4f88c6d3b6fe1632ddb567be155698733e857a1:
  fm10k: Bump driver version to 0.15.2
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue master

Anjali Singhai Jain (2):
  i40e: Add support to program FDir SB rules for VF from PF through
    ethtool
  i40e: For VF reset (VFR and VFLR) add some more delay

Catherine Sullivan (1):
  i40e: Bump version to 1.3.2

Greg Rose (1):
  i40e: Use new 40G speeds

Jesse Brandeburg (3):
  i40e: enable user dump of internal hardware state
  i40e: handle possible memory allocation failure
  i40e: get rid of unused locals

Kevin Scott (1):
  i40e/i40evf: Save WR_CSR_PROT field from DEV/FUNC capabilities

Mitch Williams (5):
  i40e: stop VF rings
  i40evf: fix bad indentation
  i40evf: remove aq_pending
  i40e: notify VFs of link state
  i40e: move VF notification routines up

Vasu Dev (1):
  i40e: print FCoE capability reported by the device function

 drivers/net/ethernet/intel/i40e/i40e_common.c      |  65 ++++++
 drivers/net/ethernet/intel/i40e/i40e_dcb.c         |   6 +-
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c     |  45 ++++
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c     |  29 ++-
 drivers/net/ethernet/intel/i40e/i40e_main.c        |  16 +-
 drivers/net/ethernet/intel/i40e/i40e_nvm.c         |   3 +-
 drivers/net/ethernet/intel/i40e/i40e_prototype.h   |   5 +
 drivers/net/ethernet/intel/i40e/i40e_type.h        |   1 +
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 244 +++++++++++----------
 drivers/net/ethernet/intel/i40evf/i40e_type.h      |   1 +
 drivers/net/ethernet/intel/i40evf/i40evf.h         |   1 -
 drivers/net/ethernet/intel/i40evf/i40evf_main.c    |   9 +-
 .../net/ethernet/intel/i40evf/i40evf_virtchnl.c    |  42 +---
 13 files changed, 304 insertions(+), 163 deletions(-)

-- 
1.9.3

[net-next 01/14] i40e: stop VF rings

[Jeff Kirsher]

From: Mitch Williams <mitch.a.williams@intel.com>

Explicitly stop the rings belonging to each VF when disabling SR-IOV.
Even though the VFs were gone, and the associated VSIs were removed,
the rings were not stopped, and in some circumstances the hardware would
continue to access the memory formerly used by the rings, causing
memory corruption or DMAR errors, both of which would lead to general
malaise of the kernel.

To relieve this condition, explicitly stop all the rings associated with
each VF before releasing its resources.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 4d69e1f..9b3fc83 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -733,6 +733,11 @@ void i40e_free_vfs(struct i40e_pf *pf)
 	while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
 		usleep_range(1000, 2000);
 
+	for (i = 0; i < pf->num_alloc_vfs; i++)
+		if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
+			i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
+					       false);
+
 	/* Disable IOV before freeing resources. This lets any VF drivers
 	 * running in the host get themselves cleaned up before we yank
 	 * the carpet out from underneath their feet.
-- 
1.9.3

[net-next 02/14] i40evf: fix bad indentation

[Jeff Kirsher]

From: Mitch Williams <mitch.a.williams@intel.com>

Not sure how this slipped through. Cosmetic change only.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 6d5f3b2..a31bfd1 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -2029,7 +2029,7 @@ static void i40evf_init_task(struct work_struct *work)
 		if (err) {
 			dev_err(&pdev->dev, "Failed to set MAC type (%d)\n",
 				err);
-		goto err;
+			goto err;
 		}
 		err = i40evf_check_reset_complete(hw);
 		if (err) {
-- 
1.9.3

[net-next 03/14] i40e: Add support to program FDir SB rules for VF from PF through ethtool

[Jeff Kirsher]

From: Anjali Singhai Jain <anjali.singhai@intel.com>

With this patch we can now add Flow director Sideband rules for a VF from
it's PF. Here is an example on how it can be done when VF id = 5 and
queue = 2:

"ethtool -N ethx flow-type udp4 src-ip x.x.x.x dst-ip y.y.y.y src-port p1 dst-port p2 action 2 user-def 5"

User-def specifies VF id and action specifies queue.

Change-ID: Ib37d6dff3823a4d85caffde638473891c38c2b89
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index c848b18..7d60587 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1914,6 +1914,16 @@ static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
 	else
 		fsp->ring_cookie = rule->q_index;
 
+	if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
+		struct i40e_vsi *vsi;
+
+		vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
+		if (vsi && vsi->type == I40E_VSI_SRIOV) {
+			fsp->h_ext.data[1] = htonl(vsi->vf_id);
+			fsp->m_ext.data[1] = htonl(0x1);
+		}
+	}
+
 	return 0;
 }
 
@@ -2207,6 +2217,7 @@ static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
 	struct i40e_fdir_filter *input;
 	struct i40e_pf *pf;
 	int ret = -EINVAL;
+	u16 vf_id;
 
 	if (!vsi)
 		return -EINVAL;
@@ -2267,7 +2278,22 @@ static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
 	input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
 	input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
 
+	if (ntohl(fsp->m_ext.data[1])) {
+		if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
+			netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
+			goto free_input;
+		}
+		vf_id = ntohl(fsp->h_ext.data[1]);
+		/* Find vsi id from vf id and override dest vsi */
+		input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
+		if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
+			netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
+			goto free_input;
+		}
+	}
+
 	ret = i40e_add_del_fdir(vsi, input, true);
+free_input:
 	if (ret)
 		kfree(input);
 	else
-- 
1.9.3

Re: [net-next 03/14] i40e: Add support to program FDir SB rules for VF from PF through ethtool

[Or Gerlitz]

On Wed, Apr 15, 2015 at 7:51 AM, Jeff Kirsher
<jeffrey.t.kirsher@intel.com> wrote:
> From: Anjali Singhai Jain <anjali.singhai@intel.com>

> With this patch we can now add Flow director Sideband rules for a VF from
> it's PF. Here is an example on how it can be done when VF id = 5 and
> queue = 2:
>
> "ethtool -N ethx flow-type udp4 src-ip x.x.x.x dst-ip y.y.y.y src-port p1 dst-port p2 action 2 user-def 5"
>
> User-def specifies VF id and action specifies queue.

Hi Jeff,

We're too eager to have support for PF controlled ACL / over-ruling VF traffic.

I don't think the way to go here is just go an use the user-defined
"data" field of struct ethtool_flow_ext to represent a VF -- since VF
is well defined multiple vendor supported construct. At least in the
command line would be better to see "vf 5" and not "user-def 5" -- and
maybe also down into the user-kernel API somehow enhance the ethtool
flow related structures such that VF ID is specified?

Or.


> Change-ID: Ib37d6dff3823a4d85caffde638473891c38c2b89
> Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
> Tested-by: Jim Young <james.m.young@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 26 ++++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
> index c848b18..7d60587 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
> @@ -1914,6 +1914,16 @@ static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
>         else
>                 fsp->ring_cookie = rule->q_index;
>
> +       if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
> +               struct i40e_vsi *vsi;
> +
> +               vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
> +               if (vsi && vsi->type == I40E_VSI_SRIOV) {
> +                       fsp->h_ext.data[1] = htonl(vsi->vf_id);
> +                       fsp->m_ext.data[1] = htonl(0x1);
> +               }
> +       }
> +
>         return 0;
>  }
>
> @@ -2207,6 +2217,7 @@ static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
>         struct i40e_fdir_filter *input;
>         struct i40e_pf *pf;
>         int ret = -EINVAL;
> +       u16 vf_id;
>
>         if (!vsi)
>                 return -EINVAL;
> @@ -2267,7 +2278,22 @@ static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
>         input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
>         input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
>
> +       if (ntohl(fsp->m_ext.data[1])) {
> +               if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
> +                       netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
> +                       goto free_input;
> +               }
> +               vf_id = ntohl(fsp->h_ext.data[1]);
> +               /* Find vsi id from vf id and override dest vsi */
> +               input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
> +               if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
> +                       netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
> +                       goto free_input;
> +               }
> +       }
> +
>         ret = i40e_add_del_fdir(vsi, input, true);
> +free_input:
>         if (ret)
>                 kfree(input);
>         else
> --
> 1.9.3
>
> --
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Re: [net-next 03/14] i40e: Add support to program FDir SB rules for VF from PF through ethtool

[Jeff Kirsher]

[-- Attachment #1: Type: text/plain, Size: 1214 bytes --]

On Wed, 2015-04-15 at 11:58 +0300, Or Gerlitz wrote:
> On Wed, Apr 15, 2015 at 7:51 AM, Jeff Kirsher
> <jeffrey.t.kirsher@intel.com> wrote:
> > From: Anjali Singhai Jain <anjali.singhai@intel.com>
> 
> > With this patch we can now add Flow director Sideband rules for a VF
> from
> > it's PF. Here is an example on how it can be done when VF id = 5 and
> > queue = 2:
> >
> > "ethtool -N ethx flow-type udp4 src-ip x.x.x.x dst-ip y.y.y.y
> src-port p1 dst-port p2 action 2 user-def 5"
> >
> > User-def specifies VF id and action specifies queue.
> 
> Hi Jeff,
> 
> We're too eager to have support for PF controlled ACL / over-ruling VF
> traffic.
> 
> I don't think the way to go here is just go an use the user-defined
> "data" field of struct ethtool_flow_ext to represent a VF -- since VF
> is well defined multiple vendor supported construct. At least in the
> command line would be better to see "vf 5" and not "user-def 5" -- and
> maybe also down into the user-kernel API somehow enhance the ethtool
> flow related structures such that VF ID is specified?

Thanks for the feedback Or, I will work with Anajali and Jesse to get
your suggestions implemented in follow-on patches.

[-- Attachment #2: This is a digitally signed message part --]
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[net-next 04/14] i40evf: remove aq_pending

[Jeff Kirsher]

From: Mitch Williams <mitch.a.williams@intel.com>

The aq_pending field in the adapter structure is actually redundant with
the current_op field. Remove the aq_pending field and expunge all traces
of it from the official record. This simplifies the code significantly,
especially in the virtual channel completion routine.

Change-ID: Ib2957c8c19882bd0cecc6fcd133912c24b46a1ff
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40evf.h         |  1 -
 drivers/net/ethernet/intel/i40evf/i40evf_main.c    |  7 +---
 .../net/ethernet/intel/i40evf/i40evf_virtchnl.c    | 42 ++++++----------------
 3 files changed, 12 insertions(+), 38 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf.h b/drivers/net/ethernet/intel/i40evf/i40evf.h
index 34c8565..1b98c25 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf.h
+++ b/drivers/net/ethernet/intel/i40evf/i40evf.h
@@ -225,7 +225,6 @@ struct i40evf_adapter {
 #define I40E_FLAG_RX_CSUM_ENABLED                I40EVF_FLAG_RX_CSUM_ENABLED
 	/* flags for admin queue service task */
 	u32 aq_required;
-	u32 aq_pending;
 #define I40EVF_FLAG_AQ_ENABLE_QUEUES		(u32)(1)
 #define I40EVF_FLAG_AQ_DISABLE_QUEUES		(u32)(1 << 1)
 #define I40EVF_FLAG_AQ_ADD_MAC_FILTER		(u32)(1 << 2)
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index a31bfd1..7c53aca 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1008,7 +1008,6 @@ void i40evf_down(struct i40evf_adapter *adapter)
 	    adapter->state != __I40EVF_RESETTING) {
 		/* cancel any current operation */
 		adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
-		adapter->aq_pending = 0;
 		/* Schedule operations to close down the HW. Don't wait
 		 * here for this to complete. The watchdog is still running
 		 * and it will take care of this.
@@ -1335,7 +1334,6 @@ static void i40evf_watchdog_task(struct work_struct *work)
 			 */
 			return;
 		}
-		adapter->aq_pending = 0;
 		adapter->aq_required = 0;
 		adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
 		goto watchdog_done;
@@ -1355,7 +1353,6 @@ static void i40evf_watchdog_task(struct work_struct *work)
 		adapter->flags |= I40EVF_FLAG_RESET_PENDING;
 		dev_err(&adapter->pdev->dev, "Hardware reset detected\n");
 		schedule_work(&adapter->reset_task);
-		adapter->aq_pending = 0;
 		adapter->aq_required = 0;
 		adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
 		goto watchdog_done;
@@ -1364,7 +1361,7 @@ static void i40evf_watchdog_task(struct work_struct *work)
 	/* Process admin queue tasks. After init, everything gets done
 	 * here so we don't race on the admin queue.
 	 */
-	if (adapter->aq_pending) {
+	if (adapter->current_op) {
 		if (!i40evf_asq_done(hw)) {
 			dev_dbg(&adapter->pdev->dev, "Admin queue timeout\n");
 			i40evf_send_api_ver(adapter);
@@ -2249,7 +2246,6 @@ static void i40evf_shutdown(struct pci_dev *pdev)
 	/* Prevent the watchdog from running. */
 	adapter->state = __I40EVF_REMOVE;
 	adapter->aq_required = 0;
-	adapter->aq_pending = 0;
 
 #ifdef CONFIG_PM
 	pci_save_state(pdev);
@@ -2467,7 +2463,6 @@ static void i40evf_remove(struct pci_dev *pdev)
 	/* Shut down all the garbage mashers on the detention level */
 	adapter->state = __I40EVF_REMOVE;
 	adapter->aq_required = 0;
-	adapter->aq_pending = 0;
 	i40evf_request_reset(adapter);
 	msleep(20);
 	/* If the FW isn't responding, kick it once, but only once. */
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
index 4240a49..61e0905 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
@@ -250,7 +250,6 @@ void i40evf_configure_queues(struct i40evf_adapter *adapter)
 		vqpi++;
 	}
 
-	adapter->aq_pending |= I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
 	adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
 			   (u8 *)vqci, len);
@@ -277,7 +276,6 @@ void i40evf_enable_queues(struct i40evf_adapter *adapter)
 	vqs.vsi_id = adapter->vsi_res->vsi_id;
 	vqs.tx_queues = (1 << adapter->num_active_queues) - 1;
 	vqs.rx_queues = vqs.tx_queues;
-	adapter->aq_pending |= I40EVF_FLAG_AQ_ENABLE_QUEUES;
 	adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
 			   (u8 *)&vqs, sizeof(vqs));
@@ -303,7 +301,6 @@ void i40evf_disable_queues(struct i40evf_adapter *adapter)
 	vqs.vsi_id = adapter->vsi_res->vsi_id;
 	vqs.tx_queues = (1 << adapter->num_active_queues) - 1;
 	vqs.rx_queues = vqs.tx_queues;
-	adapter->aq_pending |= I40EVF_FLAG_AQ_DISABLE_QUEUES;
 	adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
 			   (u8 *)&vqs, sizeof(vqs));
@@ -354,7 +351,6 @@ void i40evf_map_queues(struct i40evf_adapter *adapter)
 	vimi->vecmap[v_idx].txq_map = 0;
 	vimi->vecmap[v_idx].rxq_map = 0;
 
-	adapter->aq_pending |= I40EVF_FLAG_AQ_MAP_VECTORS;
 	adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
 			   (u8 *)vimi, len);
@@ -415,7 +411,6 @@ void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
 			f->add = false;
 		}
 	}
-	adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_MAC_FILTER;
 	adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
 			   (u8 *)veal, len);
@@ -476,7 +471,6 @@ void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
 			kfree(f);
 		}
 	}
-	adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_MAC_FILTER;
 	adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
 			   (u8 *)veal, len);
@@ -537,7 +531,6 @@ void i40evf_add_vlans(struct i40evf_adapter *adapter)
 			f->add = false;
 		}
 	}
-	adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
 	adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
 	kfree(vvfl);
@@ -598,7 +591,6 @@ void i40evf_del_vlans(struct i40evf_adapter *adapter)
 			kfree(f);
 		}
 	}
-	adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
 	adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
 	kfree(vvfl);
@@ -720,9 +712,6 @@ void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
 			__func__, v_retval, v_opcode);
 	}
 	switch (v_opcode) {
-	case I40E_VIRTCHNL_OP_VERSION:
-		/* no action, but also not an error */
-		break;
 	case I40E_VIRTCHNL_OP_GET_STATS: {
 		struct i40e_eth_stats *stats =
 			(struct i40e_eth_stats *)msg;
@@ -740,39 +729,30 @@ void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
 		adapter->current_stats = *stats;
 		}
 		break;
-	case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
-		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_MAC_FILTER);
-		break;
-	case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
-		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_MAC_FILTER);
-		break;
-	case I40E_VIRTCHNL_OP_ADD_VLAN:
-		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_VLAN_FILTER);
-		break;
-	case I40E_VIRTCHNL_OP_DEL_VLAN:
-		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_VLAN_FILTER);
-		break;
 	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
-		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ENABLE_QUEUES);
 		/* enable transmits */
 		i40evf_irq_enable(adapter, true);
 		netif_tx_start_all_queues(adapter->netdev);
 		netif_carrier_on(adapter->netdev);
 		break;
 	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
-		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DISABLE_QUEUES);
 		i40evf_free_all_tx_resources(adapter);
 		i40evf_free_all_rx_resources(adapter);
 		break;
-	case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
-		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_CONFIGURE_QUEUES);
-		break;
+	case I40E_VIRTCHNL_OP_VERSION:
+	case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
 	case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
-		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_MAP_VECTORS);
+		/* Don't display an error if we get these out of sequence.
+		 * If the firmware needed to get kicked, we'll get these and
+		 * it's no problem.
+		 */
+		if (v_opcode != adapter->current_op)
+			return;
 		break;
 	default:
-		dev_info(&adapter->pdev->dev, "Received unexpected message %d from PF\n",
-			 v_opcode);
+		if (v_opcode != adapter->current_op)
+			dev_warn(&adapter->pdev->dev, "Expected response %d from PF, received %d\n",
+				 adapter->current_op, v_opcode);
 		break;
 	} /* switch v_opcode */
 	adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
-- 
1.9.3

[net-next 05/14] i40e: notify VFs of link state

[Jeff Kirsher]

From: Mitch Williams <mitch.a.williams@intel.com>

Gratuitously notify VFs of link state when they activate their queues.
In general, this is the last thing that a VF driver will do as it opens
its interface, so this is a good time to notify the VF.

Currently, VF devices assume link is up unless told otherwise, which
means that VFs instantiated on a PF with no link will report the wrong
state. This change corrects that issue.

Change-ID: Iea53622904ecc681ac3f8938d81c30033ef9a0a6
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 50 ++++++++++++++--------
 1 file changed, 31 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 9b3fc83..8df2b52 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -25,6 +25,7 @@
  ******************************************************************************/
 
 #include "i40e.h"
+static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf);
 
 /***********************misc routines*****************************/
 
@@ -1767,6 +1768,7 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
 		break;
 	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
 		ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
+		i40e_vc_notify_vf_link_state(vf);
 		break;
 	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
 		ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
@@ -1875,35 +1877,45 @@ static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
 
 /**
  * i40e_vc_notify_link_state
- * @pf: pointer to the PF structure
+ * @vf: pointer to the VF structure
  *
- * send a link status message to all VFs on a given PF
+ * send a link status message to a single VF
  **/
-void i40e_vc_notify_link_state(struct i40e_pf *pf)
+static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
 {
 	struct i40e_virtchnl_pf_event pfe;
+	struct i40e_pf *pf = vf->pf;
 	struct i40e_hw *hw = &pf->hw;
-	struct i40e_vf *vf = pf->vf;
 	struct i40e_link_status *ls = &pf->hw.phy.link_info;
-	int i;
+	int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
 
 	pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
 	pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
-	for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
-		int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
-		if (vf->link_forced) {
-			pfe.event_data.link_event.link_status = vf->link_up;
-			pfe.event_data.link_event.link_speed =
-				(vf->link_up ? I40E_LINK_SPEED_40GB : 0);
-		} else {
-			pfe.event_data.link_event.link_status =
-				ls->link_info & I40E_AQ_LINK_UP;
-			pfe.event_data.link_event.link_speed = ls->link_speed;
-		}
-		i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
-				       0, (u8 *)&pfe, sizeof(pfe),
-				       NULL);
+	if (vf->link_forced) {
+		pfe.event_data.link_event.link_status = vf->link_up;
+		pfe.event_data.link_event.link_speed =
+			(vf->link_up ? I40E_LINK_SPEED_40GB : 0);
+	} else {
+		pfe.event_data.link_event.link_status =
+			ls->link_info & I40E_AQ_LINK_UP;
+		pfe.event_data.link_event.link_speed = ls->link_speed;
 	}
+	i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
+			       0, (u8 *)&pfe, sizeof(pfe), NULL);
+}
+
+/**
+ * i40e_vc_notify_link_state
+ * @pf: pointer to the PF structure
+ *
+ * send a link status message to all VFs on a given PF
+ **/
+void i40e_vc_notify_link_state(struct i40e_pf *pf)
+{
+	int i;
+
+	for (i = 0; i < pf->num_alloc_vfs; i++)
+		i40e_vc_notify_vf_link_state(&pf->vf[i]);
 }
 
 /**
-- 
1.9.3

[net-next 06/14] i40e: move VF notification routines up

[Jeff Kirsher]

From: Mitch Williams <mitch.a.williams@intel.com>

Move the VF notification functions to the top of the file. This
eliminates an unnecessary declaration.

Change-ID: I036171f14180ee9f0ce4e0a21334d6a217d06c94
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 246 ++++++++++-----------
 1 file changed, 123 insertions(+), 123 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 8df2b52..98e0921 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -25,8 +25,130 @@
  ******************************************************************************/
 
 #include "i40e.h"
-static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf);
 
+/*********************notification routines***********************/
+
+/**
+ * i40e_vc_vf_broadcast
+ * @pf: pointer to the PF structure
+ * @opcode: operation code
+ * @retval: return value
+ * @msg: pointer to the msg buffer
+ * @msglen: msg length
+ *
+ * send a message to all VFs on a given PF
+ **/
+static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
+				 enum i40e_virtchnl_ops v_opcode,
+				 i40e_status v_retval, u8 *msg,
+				 u16 msglen)
+{
+	struct i40e_hw *hw = &pf->hw;
+	struct i40e_vf *vf = pf->vf;
+	int i;
+
+	for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
+		int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
+		/* Not all vfs are enabled so skip the ones that are not */
+		if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
+		    !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
+			continue;
+
+		/* Ignore return value on purpose - a given VF may fail, but
+		 * we need to keep going and send to all of them
+		 */
+		i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
+				       msg, msglen, NULL);
+	}
+}
+
+/**
+ * i40e_vc_notify_link_state
+ * @vf: pointer to the VF structure
+ *
+ * send a link status message to a single VF
+ **/
+static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
+{
+	struct i40e_virtchnl_pf_event pfe;
+	struct i40e_pf *pf = vf->pf;
+	struct i40e_hw *hw = &pf->hw;
+	struct i40e_link_status *ls = &pf->hw.phy.link_info;
+	int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
+
+	pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
+	pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
+	if (vf->link_forced) {
+		pfe.event_data.link_event.link_status = vf->link_up;
+		pfe.event_data.link_event.link_speed =
+			(vf->link_up ? I40E_LINK_SPEED_40GB : 0);
+	} else {
+		pfe.event_data.link_event.link_status =
+			ls->link_info & I40E_AQ_LINK_UP;
+		pfe.event_data.link_event.link_speed = ls->link_speed;
+	}
+	i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
+			       0, (u8 *)&pfe, sizeof(pfe), NULL);
+}
+
+/**
+ * i40e_vc_notify_link_state
+ * @pf: pointer to the PF structure
+ *
+ * send a link status message to all VFs on a given PF
+ **/
+void i40e_vc_notify_link_state(struct i40e_pf *pf)
+{
+	int i;
+
+	for (i = 0; i < pf->num_alloc_vfs; i++)
+		i40e_vc_notify_vf_link_state(&pf->vf[i]);
+}
+
+/**
+ * i40e_vc_notify_reset
+ * @pf: pointer to the PF structure
+ *
+ * indicate a pending reset to all VFs on a given PF
+ **/
+void i40e_vc_notify_reset(struct i40e_pf *pf)
+{
+	struct i40e_virtchnl_pf_event pfe;
+
+	pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
+	pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
+	i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0,
+			     (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
+}
+
+/**
+ * i40e_vc_notify_vf_reset
+ * @vf: pointer to the VF structure
+ *
+ * indicate a pending reset to the given VF
+ **/
+void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
+{
+	struct i40e_virtchnl_pf_event pfe;
+	int abs_vf_id;
+
+	/* validate the request */
+	if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
+		return;
+
+	/* verify if the VF is in either init or active before proceeding */
+	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
+	    !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
+		return;
+
+	abs_vf_id = vf->vf_id + vf->pf->hw.func_caps.vf_base_id;
+
+	pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
+	pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
+	i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
+			       0, (u8 *)&pfe,
+			       sizeof(struct i40e_virtchnl_pf_event), NULL);
+}
 /***********************misc routines*****************************/
 
 /**
@@ -1842,128 +1964,6 @@ int i40e_vc_process_vflr_event(struct i40e_pf *pf)
 }
 
 /**
- * i40e_vc_vf_broadcast
- * @pf: pointer to the PF structure
- * @opcode: operation code
- * @retval: return value
- * @msg: pointer to the msg buffer
- * @msglen: msg length
- *
- * send a message to all VFs on a given PF
- **/
-static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
-				 enum i40e_virtchnl_ops v_opcode,
-				 i40e_status v_retval, u8 *msg,
-				 u16 msglen)
-{
-	struct i40e_hw *hw = &pf->hw;
-	struct i40e_vf *vf = pf->vf;
-	int i;
-
-	for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
-		int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
-		/* Not all VFs are enabled so skip the ones that are not */
-		if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
-		    !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
-			continue;
-
-		/* Ignore return value on purpose - a given VF may fail, but
-		 * we need to keep going and send to all of them
-		 */
-		i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
-				       msg, msglen, NULL);
-	}
-}
-
-/**
- * i40e_vc_notify_link_state
- * @vf: pointer to the VF structure
- *
- * send a link status message to a single VF
- **/
-static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
-{
-	struct i40e_virtchnl_pf_event pfe;
-	struct i40e_pf *pf = vf->pf;
-	struct i40e_hw *hw = &pf->hw;
-	struct i40e_link_status *ls = &pf->hw.phy.link_info;
-	int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
-
-	pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
-	pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
-	if (vf->link_forced) {
-		pfe.event_data.link_event.link_status = vf->link_up;
-		pfe.event_data.link_event.link_speed =
-			(vf->link_up ? I40E_LINK_SPEED_40GB : 0);
-	} else {
-		pfe.event_data.link_event.link_status =
-			ls->link_info & I40E_AQ_LINK_UP;
-		pfe.event_data.link_event.link_speed = ls->link_speed;
-	}
-	i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
-			       0, (u8 *)&pfe, sizeof(pfe), NULL);
-}
-
-/**
- * i40e_vc_notify_link_state
- * @pf: pointer to the PF structure
- *
- * send a link status message to all VFs on a given PF
- **/
-void i40e_vc_notify_link_state(struct i40e_pf *pf)
-{
-	int i;
-
-	for (i = 0; i < pf->num_alloc_vfs; i++)
-		i40e_vc_notify_vf_link_state(&pf->vf[i]);
-}
-
-/**
- * i40e_vc_notify_reset
- * @pf: pointer to the PF structure
- *
- * indicate a pending reset to all VFs on a given PF
- **/
-void i40e_vc_notify_reset(struct i40e_pf *pf)
-{
-	struct i40e_virtchnl_pf_event pfe;
-
-	pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
-	pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
-	i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
-			     (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
-}
-
-/**
- * i40e_vc_notify_vf_reset
- * @vf: pointer to the VF structure
- *
- * indicate a pending reset to the given VF
- **/
-void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
-{
-	struct i40e_virtchnl_pf_event pfe;
-	int abs_vf_id;
-
-	/* validate the request */
-	if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
-		return;
-
-	/* verify if the VF is in either init or active before proceeding */
-	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
-	    !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
-		return;
-
-	abs_vf_id = vf->vf_id + vf->pf->hw.func_caps.vf_base_id;
-
-	pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
-	pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
-	i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
-			       I40E_SUCCESS, (u8 *)&pfe,
-			       sizeof(struct i40e_virtchnl_pf_event), NULL);
-}
-
-/**
  * i40e_ndo_set_vf_mac
  * @netdev: network interface device structure
  * @vf_id: VF identifier
-- 
1.9.3

[net-next 07/14] i40e: For VF reset (VFR and VFLR) add some more delay

[Jeff Kirsher]

From: Anjali Singhai Jain <anjali.singhai@intel.com>

With a HW issue that was recently discovered, after a VFLR HW might be
indicating to us a reset completion little too early. So wait another 10
msec for cache to be cleaned up.

Change-ID: I6a24dcf5dd7ffcd6500246e717411ef58532d1e9
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 98e0921..78d1c4f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -812,6 +812,9 @@ void i40e_reset_vf(struct i40e_vf *vf, bool flr)
 		}
 	}
 
+	if (flr)
+		usleep_range(10000, 20000);
+
 	if (!rsd)
 		dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
 			vf->vf_id);
-- 
1.9.3

[net-next 08/14] i40e: print FCoE capability reported by the device function

[Jeff Kirsher]

From: Vasu Dev <vasu.dev@intel.com>

This is to allow quick check for FCoE capability is enabled or not
in device function before any SW overrides.

Change-ID: I5f78ba798d566f143161273156916c6f4074496e
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index d596f66..44dc4b1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -2546,6 +2546,9 @@ static void i40e_parse_discover_capabilities(struct i40e_hw *hw, void *buff,
 		}
 	}
 
+	if (p->fcoe)
+		i40e_debug(hw, I40E_DEBUG_ALL, "device is FCoE capable\n");
+
 	/* Software override ensuring FCoE is disabled if npar or mfp
 	 * mode because it is not supported in these modes.
 	 */
-- 
1.9.3

[net-next 09/14] i40e: enable user dump of internal hardware state

[Jeff Kirsher]

From: Jesse Brandeburg <jesse.brandeburg@intel.com>

This is a feature to enable better debugging of user reported issues by
allowing a bash script to acquire information about the internal hardware
state. The data output to the kernel log is collected by the script and can
then be sent to Intel. This is a critical debugging feature for helping us
interpret and reproduce complex customer setups.

Change-ID: Ie8b3ab09086d6870a709015f51ada05af10b41bb
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c    | 57 ++++++++++++++++++++++++
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c   | 45 +++++++++++++++++++
 drivers/net/ethernet/intel/i40e/i40e_prototype.h |  5 +++
 3 files changed, 107 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 44dc4b1..ce522d7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -3506,6 +3506,63 @@ void i40e_set_pci_config_data(struct i40e_hw *hw, u16 link_status)
 }
 
 /**
+ * i40e_aq_debug_dump
+ * @hw: pointer to the hardware structure
+ * @cluster_id: specific cluster to dump
+ * @table_id: table id within cluster
+ * @start_index: index of line in the block to read
+ * @buff_size: dump buffer size
+ * @buff: dump buffer
+ * @ret_buff_size: actual buffer size returned
+ * @ret_next_table: next block to read
+ * @ret_next_index: next index to read
+ *
+ * Dump internal FW/HW data for debug purposes.
+ *
+ **/
+i40e_status i40e_aq_debug_dump(struct i40e_hw *hw, u8 cluster_id,
+			       u8 table_id, u32 start_index, u16 buff_size,
+			       void *buff, u16 *ret_buff_size,
+			       u8 *ret_next_table, u32 *ret_next_index,
+			       struct i40e_asq_cmd_details *cmd_details)
+{
+	struct i40e_aq_desc desc;
+	struct i40e_aqc_debug_dump_internals *cmd =
+		(struct i40e_aqc_debug_dump_internals *)&desc.params.raw;
+	struct i40e_aqc_debug_dump_internals *resp =
+		(struct i40e_aqc_debug_dump_internals *)&desc.params.raw;
+	i40e_status status;
+
+	if (buff_size == 0 || !buff)
+		return I40E_ERR_PARAM;
+
+	i40e_fill_default_direct_cmd_desc(&desc,
+					  i40e_aqc_opc_debug_dump_internals);
+	/* Indirect Command */
+	desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
+	if (buff_size > I40E_AQ_LARGE_BUF)
+		desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
+
+	cmd->cluster_id = cluster_id;
+	cmd->table_id = table_id;
+	cmd->idx = cpu_to_le32(start_index);
+
+	desc.datalen = cpu_to_le16(buff_size);
+
+	status = i40e_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
+	if (!status) {
+		if (ret_buff_size)
+			*ret_buff_size = le16_to_cpu(desc.datalen);
+		if (ret_next_table)
+			*ret_next_table = resp->table_id;
+		if (ret_next_index)
+			*ret_next_index = le32_to_cpu(resp->idx);
+	}
+
+	return status;
+}
+
+/**
  * i40e_read_bw_from_alt_ram
  * @hw: pointer to the hardware structure
  * @max_bw: pointer for max_bw read
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index daa8826..34170ea 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1388,6 +1388,50 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 					 r_cfg->app[i].selector,
 					 r_cfg->app[i].protocolid);
 			}
+		} else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
+			int cluster_id, table_id;
+			int index, ret;
+			u16 buff_len = 4096;
+			u32 next_index;
+			u8 next_table;
+			u8 *buff;
+			u16 rlen;
+
+			cnt = sscanf(&cmd_buf[18], "%i %i %i",
+				     &cluster_id, &table_id, &index);
+			if (cnt != 3) {
+				dev_info(&pf->pdev->dev,
+					 "dump debug fwdata <cluster_id> <table_id> <index>\n");
+				goto command_write_done;
+			}
+
+			dev_info(&pf->pdev->dev,
+				 "AQ debug dump fwdata params %x %x %x %x\n",
+				 cluster_id, table_id, index, buff_len);
+			buff = kzalloc(buff_len, GFP_KERNEL);
+			if (!buff)
+				goto command_write_done;
+
+			ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
+						 index, buff_len, buff, &rlen,
+						 &next_table, &next_index,
+						 NULL);
+			if (ret) {
+				dev_info(&pf->pdev->dev,
+					 "debug dump fwdata AQ Failed %d 0x%x\n",
+					 ret, pf->hw.aq.asq_last_status);
+				kfree(buff);
+				buff = NULL;
+				goto command_write_done;
+			}
+			dev_info(&pf->pdev->dev,
+				 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
+				 rlen, next_table, next_index);
+			print_hex_dump(KERN_INFO, "AQ buffer WB: ",
+				       DUMP_PREFIX_OFFSET, 16, 1,
+				       buff, rlen, true);
+			kfree(buff);
+			buff = NULL;
 		} else {
 			dev_info(&pf->pdev->dev,
 				 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
@@ -1903,6 +1947,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 		dev_info(&pf->pdev->dev, "  dump desc aq\n");
 		dev_info(&pf->pdev->dev, "  dump reset stats\n");
+		dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
 		dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
 		dev_info(&pf->pdev->dev, "  read <reg>\n");
 		dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
diff --git a/drivers/net/ethernet/intel/i40e/i40e_prototype.h b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
index fea0d37..7b34f1e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_prototype.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
@@ -303,4 +303,9 @@ i40e_status i40e_aq_add_rem_control_packet_filter(struct i40e_hw *hw,
 				u16 vsi_seid, u16 queue, bool is_add,
 				struct i40e_control_filter_stats *stats,
 				struct i40e_asq_cmd_details *cmd_details);
+i40e_status i40e_aq_debug_dump(struct i40e_hw *hw, u8 cluster_id,
+			       u8 table_id, u32 start_index, u16 buff_size,
+			       void *buff, u16 *ret_buff_size,
+			       u8 *ret_next_table, u32 *ret_next_index,
+			       struct i40e_asq_cmd_details *cmd_details);
 #endif /* _I40E_PROTOTYPE_H_ */
-- 
1.9.3

[net-next 10/14] i40e/i40evf: Save WR_CSR_PROT field from DEV/FUNC capabilities

[Jeff Kirsher]

From: Kevin Scott <kevin.c.scott@intel.com>

Store the 8 bytes of the WR_CSR_PROT field returned as part of the get
device/function capabilities AQ command.

Change-ID: Ifcaeea2ff29885fa769e4f384c7db88a25e8afd0
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c | 5 +++++
 drivers/net/ethernet/intel/i40e/i40e_type.h   | 1 +
 drivers/net/ethernet/intel/i40evf/i40e_type.h | 1 +
 3 files changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index ce522d7..0bae22d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -2397,6 +2397,7 @@ i40e_aq_erase_nvm_exit:
 #define I40E_DEV_FUNC_CAP_LED		0x61
 #define I40E_DEV_FUNC_CAP_SDP		0x62
 #define I40E_DEV_FUNC_CAP_MDIO		0x63
+#define I40E_DEV_FUNC_CAP_WR_CSR_PROT	0x64
 
 /**
  * i40e_parse_discover_capabilities
@@ -2541,6 +2542,10 @@ static void i40e_parse_discover_capabilities(struct i40e_hw *hw, void *buff,
 			p->fd_filters_guaranteed = number;
 			p->fd_filters_best_effort = logical_id;
 			break;
+		case I40E_DEV_FUNC_CAP_WR_CSR_PROT:
+			p->wr_csr_prot = (u64)number;
+			p->wr_csr_prot |= (u64)logical_id << 32;
+			break;
 		default:
 			break;
 		}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 67c7bc9e9..568e855 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -242,6 +242,7 @@ struct i40e_hw_capabilities {
 	u8 rx_buf_chain_len;
 	u32 enabled_tcmap;
 	u32 maxtc;
+	u64 wr_csr_prot;
 };
 
 struct i40e_mac_info {
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index 9c79cb6..ec9d83a 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -242,6 +242,7 @@ struct i40e_hw_capabilities {
 	u8 rx_buf_chain_len;
 	u32 enabled_tcmap;
 	u32 maxtc;
+	u64 wr_csr_prot;
 };
 
 struct i40e_mac_info {
-- 
1.9.3

[net-next 11/14] i40e: handle possible memory allocation failure

[Jeff Kirsher]

From: Jesse Brandeburg <jesse.brandeburg@intel.com>

The init_interrupt_scheme function had a possible failure
path to allocate memory that was found by smatch.

This adds the correct handling to the function to abort
probe if the memory allocation fails.

Change-ID: I2bf1d826a244209619da4c452d0d58b3eb5e26a3
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 63de3f4..b297294 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7301,7 +7301,7 @@ err_out:
  * i40e_init_interrupt_scheme - Determine proper interrupt scheme
  * @pf: board private structure to initialize
  **/
-static void i40e_init_interrupt_scheme(struct i40e_pf *pf)
+static int i40e_init_interrupt_scheme(struct i40e_pf *pf)
 {
 	int vectors = 0;
 	ssize_t size;
@@ -7343,11 +7343,17 @@ static void i40e_init_interrupt_scheme(struct i40e_pf *pf)
 	/* set up vector assignment tracking */
 	size = sizeof(struct i40e_lump_tracking) + (sizeof(u16) * vectors);
 	pf->irq_pile = kzalloc(size, GFP_KERNEL);
+	if (!pf->irq_pile) {
+		dev_err(&pf->pdev->dev, "error allocating irq_pile memory\n");
+		return -ENOMEM;
+	}
 	pf->irq_pile->num_entries = vectors;
 	pf->irq_pile->search_hint = 0;
 
-	/* track first vector for misc interrupts */
+	/* track first vector for misc interrupts, ignore return */
 	(void)i40e_get_lump(pf, pf->irq_pile, 1, I40E_PILE_VALID_BIT - 1);
+
+	return 0;
 }
 
 /**
@@ -9827,7 +9833,9 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	/* set up the main switch operations */
 	i40e_determine_queue_usage(pf);
-	i40e_init_interrupt_scheme(pf);
+	err = i40e_init_interrupt_scheme(pf);
+	if (err)
+		goto err_switch_setup;
 
 	/* The number of VSIs reported by the FW is the minimum guaranteed
 	 * to us; HW supports far more and we share the remaining pool with
-- 
1.9.3

Re: [net-next 11/14] i40e: handle possible memory allocation failure

[Sergei Shtylyov]

Hello.

On 4/15/2015 7:51 AM, Jeff Kirsher wrote:

> From: Jesse Brandeburg <jesse.brandeburg@intel.com>

> The init_interrupt_scheme function had a possible failure
> path to allocate memory that was found by smatch.

> This adds the correct handling to the function to abort
> probe if the memory allocation fails.

> Change-ID: I2bf1d826a244209619da4c452d0d58b3eb5e26a3
> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
> Tested-by: Jim Young <james.m.young@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> ---
>   drivers/net/ethernet/intel/i40e/i40e_main.c | 14 +++++++++++---
>   1 file changed, 11 insertions(+), 3 deletions(-)

> diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
> index 63de3f4..b297294 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_main.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
[...]
> @@ -7343,11 +7343,17 @@ static void i40e_init_interrupt_scheme(struct i40e_pf *pf)
>   	/* set up vector assignment tracking */
>   	size = sizeof(struct i40e_lump_tracking) + (sizeof(u16) * vectors);
>   	pf->irq_pile = kzalloc(size, GFP_KERNEL);
> +	if (!pf->irq_pile) {
> +		dev_err(&pf->pdev->dev, "error allocating irq_pile memory\n");

    No need for error message, a call trace will be printed on failed 
allocation anyway.

[...]

WBR, Sergei

[net-next 12/14] i40e: get rid of unused locals

[Jeff Kirsher]

From: Jesse Brandeburg <jesse.brandeburg@intel.com>

These changes just remove unused variables and any code that uses them
as the results of storing into these variables doesn't have any
side effects that I can see or provide any benefit.

Change-ID: I8a5ec7132ff1443d23aae729cef94beaaaf19e3a
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_dcb.c | 6 ++----
 drivers/net/ethernet/intel/i40e/i40e_nvm.c | 3 +--
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_dcb.c b/drivers/net/ethernet/intel/i40e/i40e_dcb.c
index 6e14667..2547aa2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_dcb.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_dcb.c
@@ -419,7 +419,7 @@ static void i40e_cee_to_dcb_v1_config(
 {
 	u16 status, tlv_status = le16_to_cpu(cee_cfg->tlv_status);
 	u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio);
-	u8 i, tc, err, sync, oper;
+	u8 i, tc, err;
 
 	/* CEE PG data to ETS config */
 	dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
@@ -456,9 +456,7 @@ static void i40e_cee_to_dcb_v1_config(
 	status = (tlv_status & I40E_AQC_CEE_APP_STATUS_MASK) >>
 		  I40E_AQC_CEE_APP_STATUS_SHIFT;
 	err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
-	sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
-	oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
-	/* Add APPs if Error is False and Oper/Sync is True */
+	/* Add APPs if Error is False */
 	if (!err) {
 		/* CEE operating configuration supports FCoE/iSCSI/FIP only */
 		dcbcfg->numapps = I40E_CEE_OPER_MAX_APPS;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index e49acd2..554e49d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -821,13 +821,12 @@ static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
 						 int *errno)
 {
 	enum i40e_nvmupd_cmd upd_cmd;
-	u8 transaction, module;
+	u8 transaction;
 
 	/* anything that doesn't match a recognized case is an error */
 	upd_cmd = I40E_NVMUPD_INVALID;
 
 	transaction = i40e_nvmupd_get_transaction(cmd->config);
-	module = i40e_nvmupd_get_module(cmd->config);
 
 	/* limits on data size */
 	if ((cmd->data_size < 1) ||
-- 
1.9.3

[net-next 13/14] i40e: Use new 40G speeds

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

The kernel has added SPEED_40000 for ethtool.
Go ahead and use the new #define.

Change-ID: Ic7e16e5c9e91085afe539f11ee1b7668adc4d0ef
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 7d60587..4cbaaeb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -356,8 +356,7 @@ static void i40e_get_settings_link_up(struct i40e_hw *hw,
 	/* Set speed and duplex */
 	switch (link_speed) {
 	case I40E_LINK_SPEED_40GB:
-		/* need a SPEED_40000 in ethtool.h */
-		ethtool_cmd_speed_set(ecmd, 40000);
+		ethtool_cmd_speed_set(ecmd, SPEED_40000);
 		break;
 	case I40E_LINK_SPEED_20GB:
 		ethtool_cmd_speed_set(ecmd, SPEED_20000);
-- 
1.9.3

[net-next 14/14] i40e: Bump version to 1.3.2

[Jeff Kirsher]

From: Catherine Sullivan <catherine.sullivan@intel.com>

Bump.

Change-ID: Id14baae72332d0f1a9bc5d351ea1a85cb0295ec3
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <james.m.young@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 b297294..24481cd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -39,7 +39,7 @@ static const char i40e_driver_string[] =
 
 #define DRV_VERSION_MAJOR 1
 #define DRV_VERSION_MINOR 3
-#define DRV_VERSION_BUILD 1
+#define DRV_VERSION_BUILD 2
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
-- 
1.9.3

Re: [net-next 00/14][pull request] Intel Wired LAN Driver Updates 2015-04-14

[David Miller]

From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Tue, 14 Apr 2015 21:51:37 -0700

> This series contains updates to i40e and i40evf.

Pulled, thanks Jeff.