[net-next 00/15][pull request] 40GbE Intel Wired LAN Driver Updates 2017-08-12

[net-next 00/15][pull request] 40GbE Intel Wired LAN Driver Updates 2017-08-12

[Jeff Kirsher]

This series contains updates to i40e and i40evf only.

Jesse fixes two type mismatches, one where we were returning an enum type,
but pretending it was an integer.  The other was where we were using a
void* for offset math, but it is communicated more clearly to use a u8*,
which we can then cast to void* for prefetch to use.

Mitch adjusts the max packet size to account for two VLAN tags.

Sudheer provides a fix to ensure that the watchdog timer is scheduled
immediately after admin queue operations are scheduled in i40evf_down().
Fixes an issue by adding locking around the admin queue command and
update of state variables so that adminq_subtask will have the accurate
information whenever it gets scheduled.

Anjali fixes a bug where the PF flag setup should happen before the VMDq
RSS queue count is initialized for VMDq VSI to get the right number of
queues for RSS in the case of x722 devices.  Fixed a problem with the
hardware ATR eviction feature where the NVM setting was incorrect.

Jake separates the flags into two types, hw_features and flags.  The
hw_features flags contain a set of features which are enabled at init
time and will not contain feature flags that can be toggled.  Everything
else will remain in the flags variable, and can be modified anytime
during run time.  We should not be directly copying a cpumask_t, since
it is bitmap and might not be copied correctly, so use cpumask_copy()
instead.

Stefan Assmann makes vf _offload_flags more "generic" by renaming it to
vf_cap_flags, which allows other capabilities besides offloading to be
added.

Alan makes it such that if adaptive-rx/tx is enabled, the user cannot
make any manual adjustments to interrupt moderation.  Also makes it so
that if ITR is disabled by adaptive-rx/tx is then enabled, ITR will be
re-enabled.

The following are changes since commit aa69ff9e9c32db8aa84835baffea1b70c39e5112:
  liquidio: moved ptp_enable to octeon_device structure
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue 40GbE

Alan Brady (2):
  i40evf: use netdev variable in reset task
  i40e: prevent changing ITR if adaptive-rx/tx enabled

Anjali Singhai Jain (2):
  i40e: Fix a bug with VMDq RSS queue allocation
  i40e: Detect ATR HW Evict NVM issue and disable the feature

Jacob Keller (6):
  i40e: separate hw_features from runtime changing flags
  i40e: remove workaround for Open Firmware MAC address
  i40e/i40evf: organize and re-number feature flags
  i40e/i40evf: use cmpxchg64 when updating private flags in ethtool
  i40e: move check for avoiding VID=0 filters into i40e_vsi_add_vlan
  i40e: use cpumask_copy instead of direct assignment

Jesse Brandeburg (1):
  i40e/i40evf: fix some minor type mismatches

Mitch Williams (1):
  i40e/i40evf: adjust packet size to account for double VLANs

Stefan Assmann (1):
  i40e/i40evf: rename vf_offload_flags to vf_cap_flags in struct
    virtchnl_vf_resource

Sudheer Mogilappagari (2):
  i40evf: prevent VF close returning before state transitions to DOWN
  i40e: synchronize nvmupdate command and adminq subtask

 drivers/net/ethernet/intel/i40e/i40e.h             | 101 +++++------
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c     | 154 +++++++++++------
 drivers/net/ethernet/intel/i40e/i40e_main.c        | 188 ++++++++-------------
 drivers/net/ethernet/intel/i40e/i40e_nvm.c         |   6 +
 drivers/net/ethernet/intel/i40e/i40e_ptp.c         |   6 +-
 drivers/net/ethernet/intel/i40e/i40e_txrx.c        |   4 +-
 drivers/net/ethernet/intel/i40e/i40e_txrx.h        |   3 +-
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  30 ++--
 drivers/net/ethernet/intel/i40evf/i40e_common.c    |   2 +-
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c      |   6 +-
 drivers/net/ethernet/intel/i40evf/i40e_txrx.h      |   5 +-
 drivers/net/ethernet/intel/i40evf/i40evf.h         |  44 ++---
 drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c |  41 +++--
 drivers/net/ethernet/intel/i40evf/i40evf_main.c    |  41 +++--
 .../net/ethernet/intel/i40evf/i40evf_virtchnl.c    |   4 +-
 include/linux/avf/virtchnl.h                       |   4 +-
 16 files changed, 340 insertions(+), 299 deletions(-)

-- 
2.14.0

[net-next 01/15] i40e/i40evf: fix some minor type mismatches

[Jeff Kirsher]

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

This patch fixes two trivial type mismatches, one where
we were returning an enum type, but pretending it was an int,
and the other where we were using a void* for offset math, but
it is communicated more clearly and correctly to use a u8*,
which we then cast to void* for prefetch to use.

Change-ID: I8d9cf84a1ddbcff7f31eaad9e08880cad4a71f5f
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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_txrx.c   | 4 ++--
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 8a969d8f0790..d6e80b1130f7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1526,7 +1526,7 @@ static inline void i40e_rx_checksum(struct i40e_vsi *vsi,
  *
  * Returns a hash type to be used by skb_set_hash
  **/
-static inline int i40e_ptype_to_htype(u8 ptype)
+static inline enum pkt_hash_types i40e_ptype_to_htype(u8 ptype)
 {
 	struct i40e_rx_ptype_decoded decoded = decode_rx_desc_ptype(ptype);
 
@@ -1830,7 +1830,7 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
 	/* prefetch first cache line of first page */
 	prefetch(xdp->data);
 #if L1_CACHE_BYTES < 128
-	prefetch(xdp->data + L1_CACHE_BYTES);
+	prefetch((void *)(xdp->data + L1_CACHE_BYTES));
 #endif
 
 	/* allocate a skb to store the frags */
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index d91676ccf125..4bf7e355cb0b 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -858,7 +858,7 @@ static inline void i40e_rx_checksum(struct i40e_vsi *vsi,
  *
  * Returns a hash type to be used by skb_set_hash
  **/
-static inline int i40e_ptype_to_htype(u8 ptype)
+static inline enum pkt_hash_types i40e_ptype_to_htype(u8 ptype)
 {
 	struct i40e_rx_ptype_decoded decoded = decode_rx_desc_ptype(ptype);
 
@@ -1122,7 +1122,7 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
 					  struct i40e_rx_buffer *rx_buffer,
 					  unsigned int size)
 {
-	void *va = page_address(rx_buffer->page) + rx_buffer->page_offset;
+	u8 *va = page_address(rx_buffer->page) + rx_buffer->page_offset;
 #if (PAGE_SIZE < 8192)
 	unsigned int truesize = i40e_rx_pg_size(rx_ring) / 2;
 #else
@@ -1134,7 +1134,7 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
 	/* prefetch first cache line of first page */
 	prefetch(va);
 #if L1_CACHE_BYTES < 128
-	prefetch(va + L1_CACHE_BYTES);
+	prefetch((void *)(va + L1_CACHE_BYTES));
 #endif
 
 	/* allocate a skb to store the frags */
-- 
2.14.0

Re: [net-next 01/15] i40e/i40evf: fix some minor type mismatches

[David Miller]

From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Sat, 12 Aug 2017 04:08:33 -0700

> @@ -1830,7 +1830,7 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
>  	/* prefetch first cache line of first page */
>  	prefetch(xdp->data);
>  #if L1_CACHE_BYTES < 128
> -	prefetch(xdp->data + L1_CACHE_BYTES);
> +	prefetch((void *)(xdp->data + L1_CACHE_BYTES));
>  #endif

This cast seems unnecessary:

[davem@localhost net]$ cat x.c
extern void foo(const void *x);

void bar(void *x)
{
	foo(x);
}
[davem@localhost net]$ gcc -Wall -O2 -c -o x.o x.c
[davem@localhost net]$

[net-next 02/15] i40e/i40evf: adjust packet size to account for double VLANs

[Jeff Kirsher]

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

Now that the kernel supports double VLAN tags, we should at least play
nice. Adjust the max packet size to account for two VLAN tags, not just
one.

Signed-off-by: Mitch Williams <mitch.a.williams@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     | 3 +--
 drivers/net/ethernet/intel/i40e/i40e_txrx.h     | 1 +
 drivers/net/ethernet/intel/i40evf/i40e_txrx.h   | 1 +
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 2 +-
 4 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index a7e5a76703e7..0cb571e337f6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -9770,8 +9770,7 @@ static int i40e_config_netdev(struct i40e_vsi *vsi)
 
 	/* MTU range: 68 - 9706 */
 	netdev->min_mtu = ETH_MIN_MTU;
-	netdev->max_mtu = I40E_MAX_RXBUFFER -
-			  (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
+	netdev->max_mtu = I40E_MAX_RXBUFFER - I40E_PACKET_HDR_PAD;
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index b288d58313a6..a39892d2453d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -130,6 +130,7 @@ enum i40e_dyn_idx_t {
  * i.e. RXBUFFER_512 --> 1216 byte skb (size-2048 slab)
  */
 #define I40E_RX_HDR_SIZE I40E_RXBUFFER_256
+#define I40E_PACKET_HDR_PAD (ETH_HLEN + ETH_FCS_LEN + (VLAN_HLEN * 2))
 #define i40e_rx_desc i40e_32byte_rx_desc
 
 #define I40E_RX_DMA_ATTR \
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
index 901282c87cf6..472f606629d4 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
@@ -117,6 +117,7 @@ enum i40e_dyn_idx_t {
  * i.e. RXBUFFER_512 --> 1216 byte skb (size-2048 slab)
  */
 #define I40E_RX_HDR_SIZE I40E_RXBUFFER_256
+#define I40E_PACKET_HDR_PAD (ETH_HLEN + ETH_FCS_LEN + (VLAN_HLEN * 2))
 #define i40e_rx_desc i40e_32byte_rx_desc
 
 #define I40E_RX_DMA_ATTR \
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 93536b9fc629..22919b444ddf 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -2625,7 +2625,7 @@ static void i40evf_init_task(struct work_struct *work)
 
 	/* MTU range: 68 - 9710 */
 	netdev->min_mtu = ETH_MIN_MTU;
-	netdev->max_mtu = I40E_MAX_RXBUFFER - (ETH_HLEN + ETH_FCS_LEN);
+	netdev->max_mtu = I40E_MAX_RXBUFFER - I40E_PACKET_HDR_PAD;
 
 	if (!is_valid_ether_addr(adapter->hw.mac.addr)) {
 		dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n",
-- 
2.14.0

[net-next 3/4] i40evf: prevent VF close returning before state tranistions to DOWN

[Jeff Kirsher]

From: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>

Currently i40evf_close() can return before state transitions to
__I40EVF_DOWN because of the latency involved in processing and
receiving response from PF driver and scheduling of VF watchdog_task.
Due to this inconsistency an immediate call to i40evf_open() fails
because state is still DOWN_PENDING.

When a VF interface is in up state and we try to add it as slave,
The bonding driver calls dev_close() and dev_open() in short duration
resulting in dev_open returning error. The ifenslave command needs
to be run again for dev_open to succeed.

This fix ensures that watchdog timer is scheduled immediately after
admin queue operations are scheduled in i40evf_down(). In addition a
wait condition is added at the end of i40evf_close so that function
wont return when state is still DOWN_PENDING. The timeout value is
chosen after some profiling and includes some buffer.

Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@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.h          |  2 ++
 drivers/net/ethernet/intel/i40evf/i40evf_main.c     | 19 +++++++++++++++++++
 drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c |  4 +++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf.h b/drivers/net/ethernet/intel/i40evf/i40evf.h
index 7901cc85cbe5..52cf38f47349 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf.h
+++ b/drivers/net/ethernet/intel/i40evf/i40evf.h
@@ -43,6 +43,7 @@
 #include <linux/bitops.h>
 #include <linux/timer.h>
 #include <linux/workqueue.h>
+#include <linux/wait.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
 #include <linux/skbuff.h>
@@ -194,6 +195,7 @@ struct i40evf_adapter {
 	struct work_struct adminq_task;
 	struct delayed_work client_task;
 	struct delayed_work init_task;
+	wait_queue_head_t down_waitqueue;
 	struct i40e_q_vector *q_vectors;
 	struct list_head vlan_filter_list;
 	char misc_vector_name[IFNAMSIZ + 9];
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 9e719074a7d7..2b81b4bc13a9 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1143,6 +1143,7 @@ void i40evf_down(struct i40evf_adapter *adapter)
 	}
 
 	clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section);
+	mod_timer_pending(&adapter->watchdog_timer, jiffies + 1);
 }
 
 /**
@@ -1794,6 +1795,7 @@ static void i40evf_disable_vf(struct i40evf_adapter *adapter)
 	clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section);
 	adapter->flags &= ~I40EVF_FLAG_RESET_PENDING;
 	adapter->state = __I40EVF_DOWN;
+	wake_up(&adapter->down_waitqueue);
 	dev_info(&adapter->pdev->dev, "Reset task did not complete, VF disabled\n");
 }
 
@@ -1939,6 +1941,7 @@ static void i40evf_reset_task(struct work_struct *work)
 		i40evf_irq_enable(adapter, true);
 	} else {
 		adapter->state = __I40EVF_DOWN;
+		wake_up(&adapter->down_waitqueue);
 	}
 
 	return;
@@ -2238,6 +2241,7 @@ static int i40evf_open(struct net_device *netdev)
 static int i40evf_close(struct net_device *netdev)
 {
 	struct i40evf_adapter *adapter = netdev_priv(netdev);
+	int status;
 
 	if (adapter->state <= __I40EVF_DOWN_PENDING)
 		return 0;
@@ -2255,7 +2259,18 @@ static int i40evf_close(struct net_device *netdev)
 	 * still active and can DMA into memory. Resources are cleared in
 	 * i40evf_virtchnl_completion() after we get confirmation from the PF
 	 * driver that the rings have been stopped.
+	 *
+	 * Also, we wait for state to transition to __I40EVF_DOWN before
+	 * returning. State change occurs in i40evf_virtchnl_completion() after
+	 * VF resources are released (which occurs after PF driver processes and
+	 * responds to admin queue commands).
 	 */
+
+	status = wait_event_timeout(adapter->down_waitqueue,
+				    adapter->state == __I40EVF_DOWN,
+				    msecs_to_jiffies(200));
+	if (!status)
+		netdev_warn(netdev, "Device resources not yet released\n");
 	return 0;
 }
 
@@ -2684,6 +2699,7 @@ static void i40evf_init_task(struct work_struct *work)
 	adapter->state = __I40EVF_DOWN;
 	set_bit(__I40E_VSI_DOWN, adapter->vsi.state);
 	i40evf_misc_irq_enable(adapter);
+	wake_up(&adapter->down_waitqueue);
 
 	adapter->rss_key = kzalloc(adapter->rss_key_size, GFP_KERNEL);
 	adapter->rss_lut = kzalloc(adapter->rss_lut_size, GFP_KERNEL);
@@ -2845,6 +2861,9 @@ static int i40evf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	schedule_delayed_work(&adapter->init_task,
 			      msecs_to_jiffies(5 * (pdev->devfn & 0x07)));
 
+	/* Setup the wait queue for indicating transition to down status */
+	init_waitqueue_head(&adapter->down_waitqueue);
+
 	return 0;
 
 err_ioremap:
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
index d2bb250a71af..6c403bf1bbb8 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
@@ -991,8 +991,10 @@ void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
 	case VIRTCHNL_OP_DISABLE_QUEUES:
 		i40evf_free_all_tx_resources(adapter);
 		i40evf_free_all_rx_resources(adapter);
-		if (adapter->state == __I40EVF_DOWN_PENDING)
+		if (adapter->state == __I40EVF_DOWN_PENDING) {
 			adapter->state = __I40EVF_DOWN;
+			wake_up(&adapter->down_waitqueue);
+		}
 		break;
 	case VIRTCHNL_OP_VERSION:
 	case VIRTCHNL_OP_CONFIG_IRQ_MAP:
-- 
2.14.0

Re: [net-next 3/4] i40evf: prevent VF close returning before state tranistions to DOWN

[David Miller]

It seems like you sent two copies of this patch, one here which
seems part of a 4 patch series, and then another for the 03/15
copy.

Please sort that out.

[net-next 03/15] i40evf: prevent VF close returning before state transitions to DOWN

[Jeff Kirsher]

From: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>

Currently i40evf_close() can return before state transitions to
__I40EVF_DOWN because of the latency involved in processing and
receiving response from PF driver and scheduling of VF watchdog_task.
Due to this inconsistency an immediate call to i40evf_open() fails
because state is still DOWN_PENDING.

When a VF interface is in up state and we try to add it as slave,
The bonding driver calls dev_close() and dev_open() in short duration
resulting in dev_open returning error. The ifenslave command needs
to be run again for dev_open to succeed.

This fix ensures that watchdog timer is scheduled immediately after
admin queue operations are scheduled in i40evf_down(). In addition a
wait condition is added at the end of i40evf_close so that function
wont return when state is still DOWN_PENDING. The timeout value is
chosen after some profiling and includes some buffer.

Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@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.h          |  2 ++
 drivers/net/ethernet/intel/i40evf/i40evf_main.c     | 19 +++++++++++++++++++
 drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c |  4 +++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf.h b/drivers/net/ethernet/intel/i40evf/i40evf.h
index 7901cc85cbe5..52cf38f47349 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf.h
+++ b/drivers/net/ethernet/intel/i40evf/i40evf.h
@@ -43,6 +43,7 @@
 #include <linux/bitops.h>
 #include <linux/timer.h>
 #include <linux/workqueue.h>
+#include <linux/wait.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
 #include <linux/skbuff.h>
@@ -194,6 +195,7 @@ struct i40evf_adapter {
 	struct work_struct adminq_task;
 	struct delayed_work client_task;
 	struct delayed_work init_task;
+	wait_queue_head_t down_waitqueue;
 	struct i40e_q_vector *q_vectors;
 	struct list_head vlan_filter_list;
 	char misc_vector_name[IFNAMSIZ + 9];
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 22919b444ddf..21ab3ff5e9ec 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1143,6 +1143,7 @@ void i40evf_down(struct i40evf_adapter *adapter)
 	}
 
 	clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section);
+	mod_timer_pending(&adapter->watchdog_timer, jiffies + 1);
 }
 
 /**
@@ -1794,6 +1795,7 @@ static void i40evf_disable_vf(struct i40evf_adapter *adapter)
 	clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section);
 	adapter->flags &= ~I40EVF_FLAG_RESET_PENDING;
 	adapter->state = __I40EVF_DOWN;
+	wake_up(&adapter->down_waitqueue);
 	dev_info(&adapter->pdev->dev, "Reset task did not complete, VF disabled\n");
 }
 
@@ -1939,6 +1941,7 @@ static void i40evf_reset_task(struct work_struct *work)
 		i40evf_irq_enable(adapter, true);
 	} else {
 		adapter->state = __I40EVF_DOWN;
+		wake_up(&adapter->down_waitqueue);
 	}
 
 	return;
@@ -2238,6 +2241,7 @@ static int i40evf_open(struct net_device *netdev)
 static int i40evf_close(struct net_device *netdev)
 {
 	struct i40evf_adapter *adapter = netdev_priv(netdev);
+	int status;
 
 	if (adapter->state <= __I40EVF_DOWN_PENDING)
 		return 0;
@@ -2255,7 +2259,18 @@ static int i40evf_close(struct net_device *netdev)
 	 * still active and can DMA into memory. Resources are cleared in
 	 * i40evf_virtchnl_completion() after we get confirmation from the PF
 	 * driver that the rings have been stopped.
+	 *
+	 * Also, we wait for state to transition to __I40EVF_DOWN before
+	 * returning. State change occurs in i40evf_virtchnl_completion() after
+	 * VF resources are released (which occurs after PF driver processes and
+	 * responds to admin queue commands).
 	 */
+
+	status = wait_event_timeout(adapter->down_waitqueue,
+				    adapter->state == __I40EVF_DOWN,
+				    msecs_to_jiffies(200));
+	if (!status)
+		netdev_warn(netdev, "Device resources not yet released\n");
 	return 0;
 }
 
@@ -2683,6 +2698,7 @@ static void i40evf_init_task(struct work_struct *work)
 	adapter->state = __I40EVF_DOWN;
 	set_bit(__I40E_VSI_DOWN, adapter->vsi.state);
 	i40evf_misc_irq_enable(adapter);
+	wake_up(&adapter->down_waitqueue);
 
 	adapter->rss_key = kzalloc(adapter->rss_key_size, GFP_KERNEL);
 	adapter->rss_lut = kzalloc(adapter->rss_lut_size, GFP_KERNEL);
@@ -2844,6 +2860,9 @@ static int i40evf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	schedule_delayed_work(&adapter->init_task,
 			      msecs_to_jiffies(5 * (pdev->devfn & 0x07)));
 
+	/* Setup the wait queue for indicating transition to down status */
+	init_waitqueue_head(&adapter->down_waitqueue);
+
 	return 0;
 
 err_ioremap:
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
index d2bb250a71af..6c403bf1bbb8 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
@@ -991,8 +991,10 @@ void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
 	case VIRTCHNL_OP_DISABLE_QUEUES:
 		i40evf_free_all_tx_resources(adapter);
 		i40evf_free_all_rx_resources(adapter);
-		if (adapter->state == __I40EVF_DOWN_PENDING)
+		if (adapter->state == __I40EVF_DOWN_PENDING) {
 			adapter->state = __I40EVF_DOWN;
+			wake_up(&adapter->down_waitqueue);
+		}
 		break;
 	case VIRTCHNL_OP_VERSION:
 	case VIRTCHNL_OP_CONFIG_IRQ_MAP:
-- 
2.14.0

[net-next 04/15] i40e: Fix a bug with VMDq RSS queue allocation

[Jeff Kirsher]

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

The X722 pf flag setup should happen before the VMDq RSS queue count is
initialized for VMDq VSI to get the right number of queues for RSS in
case of X722 devices.

Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Alice Michael <alice.michael@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 | 46 ++++++++++++++---------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 0cb571e337f6..5df25df123d7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -9000,6 +9000,29 @@ static int i40e_sw_init(struct i40e_pf *pf)
 				 pf->hw.func_caps.fd_filters_best_effort;
 	}
 
+	if (pf->hw.mac.type == I40E_MAC_X722) {
+		pf->flags |= I40E_FLAG_RSS_AQ_CAPABLE
+			     | I40E_FLAG_128_QP_RSS_CAPABLE
+			     | I40E_FLAG_HW_ATR_EVICT_CAPABLE
+			     | I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
+			     | I40E_FLAG_WB_ON_ITR_CAPABLE
+			     | I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
+			     | I40E_FLAG_NO_PCI_LINK_CHECK
+			     | I40E_FLAG_USE_SET_LLDP_MIB
+			     | I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
+			     | I40E_FLAG_PTP_L4_CAPABLE
+			     | I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE;
+	} else if ((pf->hw.aq.api_maj_ver > 1) ||
+		   ((pf->hw.aq.api_maj_ver == 1) &&
+		    (pf->hw.aq.api_min_ver > 4))) {
+		/* Supported in FW API version higher than 1.4 */
+		pf->flags |= I40E_FLAG_GENEVE_OFFLOAD_CAPABLE;
+	}
+
+	/* Enable HW ATR eviction if possible */
+	if (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE)
+		pf->flags |= I40E_FLAG_HW_ATR_EVICT_ENABLED;
+
 	if ((pf->hw.mac.type == I40E_MAC_XL710) &&
 	    (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) ||
 	    (pf->hw.aq.fw_maj_ver < 4))) {
@@ -9041,29 +9064,6 @@ static int i40e_sw_init(struct i40e_pf *pf)
 					I40E_MAX_VF_COUNT);
 	}
 #endif /* CONFIG_PCI_IOV */
-	if (pf->hw.mac.type == I40E_MAC_X722) {
-		pf->flags |= I40E_FLAG_RSS_AQ_CAPABLE
-			     | I40E_FLAG_128_QP_RSS_CAPABLE
-			     | I40E_FLAG_HW_ATR_EVICT_CAPABLE
-			     | I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
-			     | I40E_FLAG_WB_ON_ITR_CAPABLE
-			     | I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
-			     | I40E_FLAG_NO_PCI_LINK_CHECK
-			     | I40E_FLAG_USE_SET_LLDP_MIB
-			     | I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
-			     | I40E_FLAG_PTP_L4_CAPABLE
-			     | I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE;
-	} else if ((pf->hw.aq.api_maj_ver > 1) ||
-		   ((pf->hw.aq.api_maj_ver == 1) &&
-		    (pf->hw.aq.api_min_ver > 4))) {
-		/* Supported in FW API version higher than 1.4 */
-		pf->flags |= I40E_FLAG_GENEVE_OFFLOAD_CAPABLE;
-	}
-
-	/* Enable HW ATR eviction if possible */
-	if (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE)
-		pf->flags |= I40E_FLAG_HW_ATR_EVICT_ENABLED;
-
 	pf->eeprom_version = 0xDEAD;
 	pf->lan_veb = I40E_NO_VEB;
 	pf->lan_vsi = I40E_NO_VSI;
-- 
2.14.0

[net-next 05/15] i40e: separate hw_features from runtime changing flags

[Jeff Kirsher]

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

The number of flags found in pf->flags has grown quite large, and there
are a lot of different types of flags. Most of the flags are simply
hardware features which are enabled on some firmware or some MAC types.
Other flags are dynamic run-time flags which enable or disable certain
features of the driver.

Separate these two types of flags into pf->hw_features and pf->flags.
The hw_features list will contain a set of features which are enabled at
init time. This will not contain toggles or otherwise dynamically
changing features. These flags should not need atomic protections, as
they will be set once during init and then be essentially read only.

Everything else will remain in the flags variable. These flags may be
modified at any time during run time. A future patch may wish to convert
these flags into set_bit/clear_bit/test_bit or similar approach to
ensure atomic correctness.

The I40E_FLAG_MFP_ENABLED flag may be a good fit for hw_features but
currently is used by ethtool in the private flags settings, and thus has
been left as part of flags.

Additionally, I40E_FLAG_DCB_CAPABLE may be a good fit for the
hw_features but this patch has not tried to untangle it yet.

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.h             | 43 +++++++------
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c     | 34 +++++-----
 drivers/net/ethernet/intel/i40e/i40e_main.c        | 72 +++++++++++-----------
 drivers/net/ethernet/intel/i40e/i40e_ptp.c         |  6 +-
 drivers/net/ethernet/intel/i40e/i40e_txrx.h        |  2 +-
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  8 +--
 drivers/net/ethernet/intel/i40evf/i40e_txrx.h      |  4 --
 drivers/net/ethernet/intel/i40evf/i40evf.h         |  2 -
 drivers/net/ethernet/intel/i40evf/i40evf_main.c    |  2 +-
 9 files changed, 85 insertions(+), 88 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index d616f698e155..f07217b15ffd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -75,11 +75,11 @@
 #define I40E_MIN_VSI_ALLOC		83 /* LAN, ATR, FCOE, 64 VF */
 /* max 16 qps */
 #define i40e_default_queues_per_vmdq(pf) \
-		(((pf)->flags & I40E_FLAG_RSS_AQ_CAPABLE) ? 4 : 1)
+		(((pf)->hw_features & I40E_HW_RSS_AQ_CAPABLE) ? 4 : 1)
 #define I40E_DEFAULT_QUEUES_PER_VF	4
 #define I40E_DEFAULT_QUEUES_PER_TC	1 /* should be a power of 2 */
 #define i40e_pf_get_max_q_per_tc(pf) \
-		(((pf)->flags & I40E_FLAG_128_QP_RSS_CAPABLE) ? 128 : 64)
+		(((pf)->hw_features & I40E_HW_128_QP_RSS_CAPABLE) ? 128 : 64)
 #define I40E_FDIR_RING			0
 #define I40E_FDIR_RING_COUNT		32
 #define I40E_MAX_AQ_BUF_SIZE		4096
@@ -401,6 +401,27 @@ struct i40e_pf {
 	struct timer_list service_timer;
 	struct work_struct service_task;
 
+	u64 hw_features;
+#define I40E_HW_RSS_AQ_CAPABLE			BIT_ULL(0)
+#define I40E_HW_128_QP_RSS_CAPABLE		BIT_ULL(1)
+#define I40E_HW_ATR_EVICT_CAPABLE		BIT_ULL(2)
+#define I40E_HW_WB_ON_ITR_CAPABLE		BIT_ULL(3)
+#define I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE	BIT_ULL(4)
+#define I40E_HW_NO_PCI_LINK_CHECK		BIT_ULL(5)
+#define I40E_HW_100M_SGMII_CAPABLE		BIT_ULL(6)
+#define I40E_HW_NO_DCB_SUPPORT			BIT_ULL(7)
+#define I40E_HW_USE_SET_LLDP_MIB		BIT_ULL(8)
+#define I40E_HW_GENEVE_OFFLOAD_CAPABLE		BIT_ULL(9)
+#define I40E_HW_PTP_L4_CAPABLE			BIT_ULL(10)
+#define I40E_HW_WOL_MC_MAGIC_PKT_WAKE		BIT_ULL(11)
+#define I40E_HW_MPLS_HDR_OFFLOAD_CAPABLE	BIT_ULL(12)
+#define I40E_HW_HAVE_CRT_RETIMER		BIT_ULL(13)
+#define I40E_HW_OUTER_UDP_CSUM_CAPABLE		BIT_ULL(14)
+#define I40E_HW_PHY_CONTROLS_LEDS		BIT_ULL(15)
+#define I40E_HW_STOP_FW_LLDP			BIT_ULL(16)
+#define I40E_HW_PORT_ID_VALID			BIT_ULL(17)
+#define I40E_HW_RESTART_AUTONEG			BIT_ULL(18)
+
 	u64 flags;
 #define I40E_FLAG_RX_CSUM_ENABLED		BIT_ULL(1)
 #define I40E_FLAG_MSI_ENABLED			BIT_ULL(2)
@@ -420,33 +441,15 @@ struct i40e_pf {
 #define I40E_FLAG_PTP				BIT_ULL(25)
 #define I40E_FLAG_MFP_ENABLED			BIT_ULL(26)
 #define I40E_FLAG_UDP_FILTER_SYNC		BIT_ULL(27)
-#define I40E_FLAG_PORT_ID_VALID			BIT_ULL(28)
 #define I40E_FLAG_DCB_CAPABLE			BIT_ULL(29)
-#define I40E_FLAG_RSS_AQ_CAPABLE		BIT_ULL(31)
-#define I40E_FLAG_HW_ATR_EVICT_CAPABLE		BIT_ULL(32)
-#define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE	BIT_ULL(33)
-#define I40E_FLAG_128_QP_RSS_CAPABLE		BIT_ULL(34)
-#define I40E_FLAG_WB_ON_ITR_CAPABLE		BIT_ULL(35)
 #define I40E_FLAG_VEB_STATS_ENABLED		BIT_ULL(37)
-#define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE	BIT_ULL(38)
 #define I40E_FLAG_LINK_POLLING_ENABLED		BIT_ULL(39)
 #define I40E_FLAG_VEB_MODE_ENABLED		BIT_ULL(40)
-#define I40E_FLAG_GENEVE_OFFLOAD_CAPABLE	BIT_ULL(41)
-#define I40E_FLAG_NO_PCI_LINK_CHECK		BIT_ULL(42)
-#define I40E_FLAG_100M_SGMII_CAPABLE		BIT_ULL(43)
-#define I40E_FLAG_RESTART_AUTONEG		BIT_ULL(44)
-#define I40E_FLAG_NO_DCB_SUPPORT		BIT_ULL(45)
-#define I40E_FLAG_USE_SET_LLDP_MIB		BIT_ULL(46)
-#define I40E_FLAG_STOP_FW_LLDP			BIT_ULL(47)
-#define I40E_FLAG_PHY_CONTROLS_LEDS		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)
-#define I40E_FLAG_PTP_L4_CAPABLE		BIT_ULL(53)
 #define I40E_FLAG_CLIENT_RESET			BIT_ULL(54)
 #define I40E_FLAG_TEMP_LINK_POLLING		BIT_ULL(55)
 #define I40E_FLAG_CLIENT_L2_CHANGE		BIT_ULL(56)
-#define I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE		BIT_ULL(57)
 #define I40E_FLAG_LEGACY_RX			BIT_ULL(58)
 
 	struct i40e_client_instance *cinst;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 1d29152256fe..c76549e41705 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -271,7 +271,7 @@ static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 		*advertising |= ADVERTISED_Autoneg;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 			*advertising |= ADVERTISED_1000baseT_Full;
-		if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
+		if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 			*supported |= SUPPORTED_100baseT_Full;
 			*advertising |= ADVERTISED_100baseT_Full;
 		}
@@ -340,12 +340,12 @@ 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) {
-		if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+		if (!(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER))
 			*supported |= SUPPORTED_10000baseKR_Full |
 				      SUPPORTED_Autoneg;
 		*advertising |= ADVERTISED_Autoneg;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
-			if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+			if (!(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER))
 				*advertising |= ADVERTISED_10000baseKR_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
@@ -356,12 +356,12 @@ 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) {
-		if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+		if (!(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER))
 			*supported |= SUPPORTED_1000baseKX_Full |
 				      SUPPORTED_Autoneg;
 		*advertising |= ADVERTISED_Autoneg;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
-			if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+			if (!(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER))
 				*advertising |= ADVERTISED_1000baseKX_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
@@ -474,7 +474,7 @@ static void i40e_get_settings_link_up(struct i40e_hw *hw,
 			    SUPPORTED_1000baseT_Full;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 			advertising |= ADVERTISED_1000baseT_Full;
-		if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
+		if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 			supported |= SUPPORTED_100baseT_Full;
 			if (hw_link_info->requested_speeds &
 			    I40E_LINK_SPEED_100MB)
@@ -1765,7 +1765,7 @@ static int i40e_get_ts_info(struct net_device *dev,
 			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
 			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
 
-	if (pf->flags & I40E_FLAG_PTP_L4_CAPABLE)
+	if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 				    BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 				    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
@@ -2005,7 +2005,7 @@ static int i40e_set_phys_id(struct net_device *netdev,
 
 	switch (state) {
 	case ETHTOOL_ID_ACTIVE:
-		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS)) {
+		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
 			pf->led_status = i40e_led_get(hw);
 		} else {
 			i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, NULL);
@@ -2015,19 +2015,19 @@ static int i40e_set_phys_id(struct net_device *netdev,
 		}
 		return blink_freq;
 	case ETHTOOL_ID_ON:
-		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS))
+		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
 			i40e_led_set(hw, 0xf, false);
 		else
 			ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
 		break;
 	case ETHTOOL_ID_OFF:
-		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS))
+		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
 			i40e_led_set(hw, 0x0, false);
 		else
 			ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
 		break;
 	case ETHTOOL_ID_INACTIVE:
-		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS)) {
+		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
 			i40e_led_set(hw, pf->led_status, false);
 		} else {
 			ret = i40e_led_set_phy(hw, false, pf->led_status,
@@ -2727,22 +2727,22 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
 	switch (nfc->flow_type) {
 	case TCP_V4_FLOW:
 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
 		break;
 	case TCP_V6_FLOW:
 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
 		break;
 	case UDP_V4_FLOW:
 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
@@ -2751,7 +2751,7 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
 		break;
 	case UDP_V6_FLOW:
 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
@@ -4122,7 +4122,7 @@ static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
 	}
 
 	/* Only allow ATR evict on hardware that is capable of handling it */
-	if (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE)
+	if (!(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
 		pf->flags &= ~I40E_FLAG_HW_ATR_EVICT_ENABLED;
 
 	if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 5df25df123d7..d7248e5c5f01 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5350,7 +5350,7 @@ static int i40e_init_pf_dcb(struct i40e_pf *pf)
 	int err = 0;
 
 	/* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
-	if (pf->flags & I40E_FLAG_NO_DCB_SUPPORT)
+	if (pf->hw_features & I40E_HW_NO_DCB_SUPPORT)
 		goto out;
 
 	/* Get the initial DCB configuration */
@@ -7332,7 +7332,7 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
 		wr32(hw, I40E_REG_MSS, val);
 	}
 
-	if (pf->flags & I40E_FLAG_RESTART_AUTONEG) {
+	if (pf->hw_features & I40E_HW_RESTART_AUTONEG) {
 		msleep(75);
 		ret = i40e_aq_set_link_restart_an(&pf->hw, true, NULL);
 		if (ret)
@@ -7970,7 +7970,7 @@ static int i40e_alloc_rings(struct i40e_vsi *vsi)
 		ring->count = vsi->num_desc;
 		ring->size = 0;
 		ring->dcb_tc = 0;
-		if (vsi->back->flags & I40E_FLAG_WB_ON_ITR_CAPABLE)
+		if (vsi->back->hw_features & I40E_HW_WB_ON_ITR_CAPABLE)
 			ring->flags = I40E_TXR_FLAGS_WB_ON_ITR;
 		ring->tx_itr_setting = pf->tx_itr_default;
 		vsi->tx_rings[i] = ring++;
@@ -7987,7 +7987,7 @@ static int i40e_alloc_rings(struct i40e_vsi *vsi)
 		ring->count = vsi->num_desc;
 		ring->size = 0;
 		ring->dcb_tc = 0;
-		if (vsi->back->flags & I40E_FLAG_WB_ON_ITR_CAPABLE)
+		if (vsi->back->hw_features & I40E_HW_WB_ON_ITR_CAPABLE)
 			ring->flags = I40E_TXR_FLAGS_WB_ON_ITR;
 		set_ring_xdp(ring);
 		ring->tx_itr_setting = pf->tx_itr_default;
@@ -8523,7 +8523,7 @@ static int i40e_vsi_config_rss(struct i40e_vsi *vsi)
 	u8 *lut;
 	int ret;
 
-	if (!(pf->flags & I40E_FLAG_RSS_AQ_CAPABLE))
+	if (!(pf->hw_features & I40E_HW_RSS_AQ_CAPABLE))
 		return 0;
 
 	if (!vsi->rss_size)
@@ -8653,7 +8653,7 @@ int i40e_config_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size)
 {
 	struct i40e_pf *pf = vsi->back;
 
-	if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE)
+	if (pf->hw_features & I40E_HW_RSS_AQ_CAPABLE)
 		return i40e_config_rss_aq(vsi, seed, lut, lut_size);
 	else
 		return i40e_config_rss_reg(vsi, seed, lut, lut_size);
@@ -8672,7 +8672,7 @@ int i40e_get_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size)
 {
 	struct i40e_pf *pf = vsi->back;
 
-	if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE)
+	if (pf->hw_features & I40E_HW_RSS_AQ_CAPABLE)
 		return i40e_get_rss_aq(vsi, seed, lut, lut_size);
 	else
 		return i40e_get_rss_reg(vsi, seed, lut, lut_size);
@@ -9001,47 +9001,47 @@ static int i40e_sw_init(struct i40e_pf *pf)
 	}
 
 	if (pf->hw.mac.type == I40E_MAC_X722) {
-		pf->flags |= I40E_FLAG_RSS_AQ_CAPABLE
-			     | I40E_FLAG_128_QP_RSS_CAPABLE
-			     | I40E_FLAG_HW_ATR_EVICT_CAPABLE
-			     | I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
-			     | I40E_FLAG_WB_ON_ITR_CAPABLE
-			     | I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
-			     | I40E_FLAG_NO_PCI_LINK_CHECK
-			     | I40E_FLAG_USE_SET_LLDP_MIB
-			     | I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
-			     | I40E_FLAG_PTP_L4_CAPABLE
-			     | I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE;
+		pf->hw_features |= (I40E_HW_RSS_AQ_CAPABLE |
+				    I40E_HW_128_QP_RSS_CAPABLE |
+				    I40E_HW_ATR_EVICT_CAPABLE |
+				    I40E_HW_WB_ON_ITR_CAPABLE |
+				    I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE |
+				    I40E_HW_NO_PCI_LINK_CHECK |
+				    I40E_HW_USE_SET_LLDP_MIB |
+				    I40E_HW_GENEVE_OFFLOAD_CAPABLE |
+				    I40E_HW_PTP_L4_CAPABLE |
+				    I40E_HW_WOL_MC_MAGIC_PKT_WAKE |
+				    I40E_HW_OUTER_UDP_CSUM_CAPABLE);
 	} else if ((pf->hw.aq.api_maj_ver > 1) ||
 		   ((pf->hw.aq.api_maj_ver == 1) &&
 		    (pf->hw.aq.api_min_ver > 4))) {
 		/* Supported in FW API version higher than 1.4 */
-		pf->flags |= I40E_FLAG_GENEVE_OFFLOAD_CAPABLE;
+		pf->hw_features |= I40E_HW_GENEVE_OFFLOAD_CAPABLE;
 	}
 
 	/* Enable HW ATR eviction if possible */
-	if (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE)
+	if (pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)
 		pf->flags |= I40E_FLAG_HW_ATR_EVICT_ENABLED;
 
 	if ((pf->hw.mac.type == I40E_MAC_XL710) &&
 	    (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) ||
 	    (pf->hw.aq.fw_maj_ver < 4))) {
-		pf->flags |= I40E_FLAG_RESTART_AUTONEG;
+		pf->hw_features |= I40E_HW_RESTART_AUTONEG;
 		/* No DCB support  for FW < v4.33 */
-		pf->flags |= I40E_FLAG_NO_DCB_SUPPORT;
+		pf->hw_features |= I40E_HW_NO_DCB_SUPPORT;
 	}
 
 	/* Disable FW LLDP if FW < v4.3 */
 	if ((pf->hw.mac.type == I40E_MAC_XL710) &&
 	    (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 3)) ||
 	    (pf->hw.aq.fw_maj_ver < 4)))
-		pf->flags |= I40E_FLAG_STOP_FW_LLDP;
+		pf->hw_features |= I40E_HW_STOP_FW_LLDP;
 
 	/* Use the FW Set LLDP MIB API if FW > v4.40 */
 	if ((pf->hw.mac.type == I40E_MAC_XL710) &&
 	    (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver >= 40)) ||
 	    (pf->hw.aq.fw_maj_ver >= 5)))
-		pf->flags |= I40E_FLAG_USE_SET_LLDP_MIB;
+		pf->hw_features |= I40E_HW_USE_SET_LLDP_MIB;
 
 	if (pf->hw.func_caps.vmdq) {
 		pf->num_vmdq_vsis = I40E_DEFAULT_NUM_VMDQ_VSI;
@@ -9244,7 +9244,7 @@ static void i40e_udp_tunnel_add(struct net_device *netdev,
 		pf->udp_ports[next_idx].type = I40E_AQC_TUNNEL_TYPE_VXLAN;
 		break;
 	case UDP_TUNNEL_TYPE_GENEVE:
-		if (!(pf->flags & I40E_FLAG_GENEVE_OFFLOAD_CAPABLE))
+		if (!(pf->hw_features & I40E_HW_GENEVE_OFFLOAD_CAPABLE))
 			return;
 		pf->udp_ports[next_idx].type = I40E_AQC_TUNNEL_TYPE_NGE;
 		break;
@@ -9311,7 +9311,7 @@ static int i40e_get_phys_port_id(struct net_device *netdev,
 	struct i40e_pf *pf = np->vsi->back;
 	struct i40e_hw *hw = &pf->hw;
 
-	if (!(pf->flags & I40E_FLAG_PORT_ID_VALID))
+	if (!(pf->hw_features & I40E_HW_PORT_ID_VALID))
 		return -EOPNOTSUPP;
 
 	ppid->id_len = min_t(int, sizeof(hw->mac.port_addr), sizeof(ppid->id));
@@ -9689,7 +9689,7 @@ static int i40e_config_netdev(struct i40e_vsi *vsi)
 			  NETIF_F_RXCSUM		|
 			  0;
 
-	if (!(pf->flags & I40E_FLAG_OUTER_UDP_CSUM_CAPABLE))
+	if (!(pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE))
 		netdev->gso_partial_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM;
 
 	netdev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM;
@@ -10447,7 +10447,7 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 		break;
 	}
 
-	if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) &&
+	if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
 	    (vsi->type == I40E_VSI_VMDQ2)) {
 		ret = i40e_vsi_config_rss(vsi);
 	}
@@ -11456,7 +11456,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * Ignore error return codes because if it was already disabled via
 	 * hardware settings this will fail
 	 */
-	if (pf->flags & I40E_FLAG_STOP_FW_LLDP) {
+	if (pf->hw_features & I40E_HW_STOP_FW_LLDP) {
 		dev_info(&pdev->dev, "Stopping firmware LLDP agent.\n");
 		i40e_aq_stop_lldp(hw, true, NULL);
 	}
@@ -11473,7 +11473,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	ether_addr_copy(hw->mac.perm_addr, hw->mac.addr);
 	i40e_get_port_mac_addr(hw, hw->mac.port_addr);
 	if (is_valid_ether_addr(hw->mac.port_addr))
-		pf->flags |= I40E_FLAG_PORT_ID_VALID;
+		pf->hw_features |= I40E_HW_PORT_ID_VALID;
 
 	pci_set_drvdata(pdev, pf);
 	pci_save_state(pdev);
@@ -11589,7 +11589,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		wr32(hw, I40E_REG_MSS, val);
 	}
 
-	if (pf->flags & I40E_FLAG_RESTART_AUTONEG) {
+	if (pf->hw_features & I40E_HW_RESTART_AUTONEG) {
 		msleep(75);
 		err = i40e_aq_set_link_restart_an(&pf->hw, true, NULL);
 		if (err)
@@ -11676,7 +11676,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * and will report PCI Gen 1 x 1 by default so don't bother
 	 * checking them.
 	 */
-	if (!(pf->flags & I40E_FLAG_NO_PCI_LINK_CHECK)) {
+	if (!(pf->hw_features & I40E_HW_NO_PCI_LINK_CHECK)) {
 		char speed[PCI_SPEED_SIZE] = "Unknown";
 		char width[PCI_WIDTH_SIZE] = "Unknown";
 
@@ -11747,9 +11747,9 @@ 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_PHY_CONTROLS_LEDS;
+		pf->hw_features |= I40E_HW_PHY_CONTROLS_LEDS;
 	if (pf->hw.device_id == I40E_DEV_ID_SFP_I_X722)
-		pf->flags |= I40E_FLAG_HAVE_CRT_RETIMER;
+		pf->hw_features |= I40E_HW_HAVE_CRT_RETIMER;
 	/* print a string summarizing features */
 	i40e_print_features(pf);
 
@@ -12061,7 +12061,7 @@ static void i40e_shutdown(struct pci_dev *pdev)
 	 */
 	i40e_notify_client_of_netdev_close(pf->vsi[pf->lan_vsi], false);
 
-	if (pf->wol_en && (pf->flags & I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE))
+	if (pf->wol_en && (pf->hw_features & I40E_HW_WOL_MC_MAGIC_PKT_WAKE))
 		i40e_enable_mc_magic_wake(pf);
 
 	i40e_prep_for_reset(pf, false);
@@ -12093,7 +12093,7 @@ static int i40e_suspend(struct pci_dev *pdev, pm_message_t state)
 	set_bit(__I40E_SUSPENDED, pf->state);
 	set_bit(__I40E_DOWN, pf->state);
 
-	if (pf->wol_en && (pf->flags & I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE))
+	if (pf->wol_en && (pf->hw_features & I40E_HW_WOL_MC_MAGIC_PKT_WAKE))
 		i40e_enable_mc_magic_wake(pf);
 
 	i40e_prep_for_reset(pf, false);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
index 0129ed3b78ec..d8456c381c99 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -569,7 +569,7 @@ static int i40e_ptp_set_timestamp_mode(struct i40e_pf *pf,
 	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
 	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
-		if (!(pf->flags & I40E_FLAG_PTP_L4_CAPABLE))
+		if (!(pf->hw_features & I40E_HW_PTP_L4_CAPABLE))
 			return -ERANGE;
 		pf->ptp_rx = true;
 		tsyntype = I40E_PRTTSYN_CTL1_V1MESSTYPE0_MASK |
@@ -583,7 +583,7 @@ static int i40e_ptp_set_timestamp_mode(struct i40e_pf *pf,
 	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
 	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
-		if (!(pf->flags & I40E_FLAG_PTP_L4_CAPABLE))
+		if (!(pf->hw_features & I40E_HW_PTP_L4_CAPABLE))
 			return -ERANGE;
 		/* fall through */
 	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
@@ -592,7 +592,7 @@ static int i40e_ptp_set_timestamp_mode(struct i40e_pf *pf,
 		pf->ptp_rx = true;
 		tsyntype = I40E_PRTTSYN_CTL1_V2MESSTYPE0_MASK |
 			   I40E_PRTTSYN_CTL1_TSYNTYPE_V2;
-		if (pf->flags & I40E_FLAG_PTP_L4_CAPABLE) {
+		if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) {
 			tsyntype |= I40E_PRTTSYN_CTL1_UDP_ENA_MASK;
 			config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
 		} else {
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index a39892d2453d..f0a0eabc2666 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -112,7 +112,7 @@ enum i40e_dyn_idx_t {
 	BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP))
 
 #define i40e_pf_get_default_rss_hena(pf) \
-	(((pf)->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) ? \
+	(((pf)->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) ? \
 	  I40E_DEFAULT_RSS_HENA_EXPANDED : I40E_DEFAULT_RSS_HENA)
 
 /* Supported Rx Buffer Sizes (a multiple of 128) */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 979110d59f67..3ef67dc094fc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1542,14 +1542,14 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
 		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
 	} else {
-		if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) &&
+		if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
 		    (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
 			vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
 		else
 			vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
 	}
 
-	if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
+	if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
 		if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
 			vfres->vf_offload_flags |=
 				VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
@@ -1558,7 +1558,7 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
 		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
 
-	if ((pf->flags & I40E_FLAG_OUTER_UDP_CSUM_CAPABLE) &&
+	if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
 	    (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
 		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
 
@@ -1573,7 +1573,7 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
 	}
 
-	if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
+	if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
 		if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
 			vfres->vf_offload_flags |=
 					VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
index 472f606629d4..489684002e94 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
@@ -98,10 +98,6 @@ enum i40e_dyn_idx_t {
 	BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | \
 	BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP))
 
-#define i40e_pf_get_default_rss_hena(pf) \
-	(((pf)->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) ? \
-	  I40E_DEFAULT_RSS_HENA_EXPANDED : I40E_DEFAULT_RSS_HENA)
-
 /* Supported Rx Buffer Sizes (a multiple of 128) */
 #define I40E_RXBUFFER_256   256
 #define I40E_RXBUFFER_1536  1536  /* 128B aligned standard Ethernet frame */
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf.h b/drivers/net/ethernet/intel/i40evf/i40evf.h
index 52cf38f47349..7f905368fc93 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf.h
+++ b/drivers/net/ethernet/intel/i40evf/i40evf.h
@@ -238,8 +238,6 @@ struct i40evf_adapter {
 /* duplicates for common code */
 #define I40E_FLAG_DCB_ENABLED			0
 #define I40E_FLAG_RX_CSUM_ENABLED		I40EVF_FLAG_RX_CSUM_ENABLED
-#define I40E_FLAG_WB_ON_ITR_CAPABLE		I40EVF_FLAG_WB_ON_ITR_CAPABLE
-#define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE	I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE
 #define I40E_FLAG_LEGACY_RX			I40EVF_FLAG_LEGACY_RX
 	/* flags for admin queue service task */
 	u32 aq_required;
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 21ab3ff5e9ec..8603911cc550 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1242,7 +1242,7 @@ static int i40evf_alloc_queues(struct i40evf_adapter *adapter)
 		tx_ring->dev = &adapter->pdev->dev;
 		tx_ring->count = adapter->tx_desc_count;
 		tx_ring->tx_itr_setting = (I40E_ITR_DYNAMIC | I40E_ITR_TX_DEF);
-		if (adapter->flags & I40E_FLAG_WB_ON_ITR_CAPABLE)
+		if (adapter->flags & I40EVF_FLAG_WB_ON_ITR_CAPABLE)
 			tx_ring->flags |= I40E_TXR_FLAGS_WB_ON_ITR;
 
 		rx_ring = &adapter->rx_rings[i];
-- 
2.14.0

[net-next 06/15] i40e: remove workaround for Open Firmware MAC address

[Jeff Kirsher]

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

Since commit b499ffb0a22c ("i40e: Look up MAC address in Open Firmware
or IDPROM"), we've had support for obtaining the MAC address
form Open Firmware or IDPROM.

This code relied on sending the Open Firmware address directly to the
device firmware instead of relying on our MAC/VLAN filter list. Thus,
a work around was introduced in commit b1b15df59232 ("i40e: Explicitly
write platform-specific mac address after PF reset")

We refactored the Open Firmware address enablement code in the ill-named
commit 41c4c2b50d52 ("i40e: allow look-up of MAC address from Open
Firmware or IDPROM")

Since this refactor, we no longer even set I40E_FLAG_PF_MAC. Further, we
don't need this work around, because we actually store the MAC address
as part of the MAC/VLAN filter hash. Thus, we will restore the address
correctly upon reset.

The refactor above failed to revert the workaround, so do that now.

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.h      |  1 -
 drivers/net/ethernet/intel/i40e/i40e_main.c | 60 -----------------------------
 2 files changed, 61 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index f07217b15ffd..d0c1bf5441d8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -445,7 +445,6 @@ struct i40e_pf {
 #define I40E_FLAG_VEB_STATS_ENABLED		BIT_ULL(37)
 #define I40E_FLAG_LINK_POLLING_ENABLED		BIT_ULL(39)
 #define I40E_FLAG_VEB_MODE_ENABLED		BIT_ULL(40)
-#define I40E_FLAG_PF_MAC			BIT_ULL(50)
 #define I40E_FLAG_TRUE_PROMISC_SUPPORT		BIT_ULL(51)
 #define I40E_FLAG_CLIENT_RESET			BIT_ULL(54)
 #define I40E_FLAG_TEMP_LINK_POLLING		BIT_ULL(55)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index d7248e5c5f01..4d1eb0c19028 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2713,44 +2713,6 @@ static int i40e_vlan_rx_kill_vid(struct net_device *netdev,
 	return 0;
 }
 
-/**
- * i40e_macaddr_init - explicitly write the mac address filters
- *
- * @vsi: pointer to the vsi
- * @macaddr: the MAC address
- *
- * This is needed when the macaddr has been obtained by other
- * means than the default, e.g., from Open Firmware or IDPROM.
- * Returns 0 on success, negative on failure
- **/
-static int i40e_macaddr_init(struct i40e_vsi *vsi, u8 *macaddr)
-{
-	int ret;
-	struct i40e_aqc_add_macvlan_element_data element;
-
-	ret = i40e_aq_mac_address_write(&vsi->back->hw,
-					I40E_AQC_WRITE_TYPE_LAA_WOL,
-					macaddr, NULL);
-	if (ret) {
-		dev_info(&vsi->back->pdev->dev,
-			 "Addr change for VSI failed: %d\n", ret);
-		return -EADDRNOTAVAIL;
-	}
-
-	memset(&element, 0, sizeof(element));
-	ether_addr_copy(element.mac_addr, macaddr);
-	element.flags = cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH);
-	ret = i40e_aq_add_macvlan(&vsi->back->hw, vsi->seid, &element, 1, NULL);
-	if (ret) {
-		dev_info(&vsi->back->pdev->dev,
-			 "add filter failed err %s aq_err %s\n",
-			 i40e_stat_str(&vsi->back->hw, ret),
-			 i40e_aq_str(&vsi->back->hw,
-				     vsi->back->hw.aq.asq_last_status));
-	}
-	return ret;
-}
-
 /**
  * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
  * @vsi: the vsi being brought back up
@@ -3203,19 +3165,8 @@ static void i40e_vsi_config_dcb_rings(struct i40e_vsi *vsi)
  **/
 static void i40e_set_vsi_rx_mode(struct i40e_vsi *vsi)
 {
-	struct i40e_pf *pf = vsi->back;
-	int err;
-
 	if (vsi->netdev)
 		i40e_set_rx_mode(vsi->netdev);
-
-	if (!!(pf->flags & I40E_FLAG_PF_MAC)) {
-		err = i40e_macaddr_init(vsi, pf->hw.mac.addr);
-		if (err) {
-			dev_warn(&pf->pdev->dev,
-				 "could not set up macaddr; err %d\n", err);
-		}
-	}
 }
 
 /**
@@ -10400,17 +10351,6 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 	switch (vsi->type) {
 	/* setup the netdev if needed */
 	case I40E_VSI_MAIN:
-		/* Apply relevant filters if a platform-specific mac
-		 * address was selected.
-		 */
-		if (!!(pf->flags & I40E_FLAG_PF_MAC)) {
-			ret = i40e_macaddr_init(vsi, pf->hw.mac.addr);
-			if (ret) {
-				dev_warn(&pf->pdev->dev,
-					 "could not set up macaddr; err %d\n",
-					 ret);
-			}
-		}
 	case I40E_VSI_VMDQ2:
 		ret = i40e_config_netdev(vsi);
 		if (ret)
-- 
2.14.0

[net-next 07/15] i40e: Detect ATR HW Evict NVM issue and disable the feature

[Jeff Kirsher]

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

This patch fixes a problem with the HW ATR eviction feature where the
NVM setting was incorrect.  This patch detects the issue on X720
adapters and disables the feature if the NVM setting is incorrect.

Without this patch, HW ATR Evict feature does not work on broken NVMs
and is not detected either.  If the HW ATR Evict feature is disabled
the SW Eviction feature will take effect.

Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Alice Michael <alice.michael@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 | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 4d1eb0c19028..6a59d9367a2a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8963,6 +8963,14 @@ static int i40e_sw_init(struct i40e_pf *pf)
 				    I40E_HW_PTP_L4_CAPABLE |
 				    I40E_HW_WOL_MC_MAGIC_PKT_WAKE |
 				    I40E_HW_OUTER_UDP_CSUM_CAPABLE);
+
+#define I40E_FDEVICT_PCTYPE_DEFAULT 0xc03
+		if (rd32(&pf->hw, I40E_GLQF_FDEVICTENA(1)) !=
+		    I40E_FDEVICT_PCTYPE_DEFAULT) {
+			dev_warn(&pf->pdev->dev,
+				 "FD EVICT PCTYPES are not right, disable FD HW EVICT\n");
+			pf->hw_features &= ~I40E_HW_ATR_EVICT_CAPABLE;
+		}
 	} else if ((pf->hw.aq.api_maj_ver > 1) ||
 		   ((pf->hw.aq.api_maj_ver == 1) &&
 		    (pf->hw.aq.api_min_ver > 4))) {
-- 
2.14.0

[net-next 08/15] i40e/i40evf: organize and re-number feature flags

[Jeff Kirsher]

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

Now that we've reduced the number of flags, organize similar flags
together and re-number them accordingly.

Also ensure that the flags variable is actually a u64 to guarantee
64bits of space on all architectures.

One alternative approach considered, but not implemented here, was to
use an enumeration for the flag variables, and create a macro
I40E_FLAG() which used string concatenation to generate BIT_ULL values.
This has the advantage of making the actual bit values compile-time
dynamic so that we do not need to worry about matching the order to the
bit value. However, this does produce a high level of code churn, and
makes it more difficult to read a dumped flags value when debugging.

Change-ID: I8653fff69453cd547d6fe98d29dfa9d8710387d1
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Mitch Williams <mitch.a.williams@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     | 57 +++++++++++++++---------------
 drivers/net/ethernet/intel/i40evf/i40evf.h | 30 ++++++++--------
 2 files changed, 44 insertions(+), 43 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index d0c1bf5441d8..5f75e67c6ce9 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -423,33 +423,34 @@ struct i40e_pf {
 #define I40E_HW_RESTART_AUTONEG			BIT_ULL(18)
 
 	u64 flags;
-#define I40E_FLAG_RX_CSUM_ENABLED		BIT_ULL(1)
-#define I40E_FLAG_MSI_ENABLED			BIT_ULL(2)
-#define I40E_FLAG_MSIX_ENABLED			BIT_ULL(3)
-#define I40E_FLAG_HW_ATR_EVICT_ENABLED		BIT_ULL(4)
-#define I40E_FLAG_RSS_ENABLED			BIT_ULL(6)
-#define I40E_FLAG_VMDQ_ENABLED			BIT_ULL(7)
-#define I40E_FLAG_IWARP_ENABLED			BIT_ULL(10)
-#define I40E_FLAG_FILTER_SYNC			BIT_ULL(15)
-#define I40E_FLAG_SERVICE_CLIENT_REQUESTED	BIT_ULL(16)
-#define I40E_FLAG_SRIOV_ENABLED			BIT_ULL(19)
-#define I40E_FLAG_DCB_ENABLED			BIT_ULL(20)
-#define I40E_FLAG_FD_SB_ENABLED			BIT_ULL(21)
-#define I40E_FLAG_FD_ATR_ENABLED		BIT_ULL(22)
-#define I40E_FLAG_FD_SB_AUTO_DISABLED		BIT_ULL(23)
-#define I40E_FLAG_FD_ATR_AUTO_DISABLED		BIT_ULL(24)
-#define I40E_FLAG_PTP				BIT_ULL(25)
-#define I40E_FLAG_MFP_ENABLED			BIT_ULL(26)
-#define I40E_FLAG_UDP_FILTER_SYNC		BIT_ULL(27)
-#define I40E_FLAG_DCB_CAPABLE			BIT_ULL(29)
-#define I40E_FLAG_VEB_STATS_ENABLED		BIT_ULL(37)
-#define I40E_FLAG_LINK_POLLING_ENABLED		BIT_ULL(39)
-#define I40E_FLAG_VEB_MODE_ENABLED		BIT_ULL(40)
-#define I40E_FLAG_TRUE_PROMISC_SUPPORT		BIT_ULL(51)
-#define I40E_FLAG_CLIENT_RESET			BIT_ULL(54)
-#define I40E_FLAG_TEMP_LINK_POLLING		BIT_ULL(55)
-#define I40E_FLAG_CLIENT_L2_CHANGE		BIT_ULL(56)
-#define I40E_FLAG_LEGACY_RX			BIT_ULL(58)
+#define I40E_FLAG_RX_CSUM_ENABLED		BIT_ULL(0)
+#define I40E_FLAG_MSI_ENABLED			BIT_ULL(1)
+#define I40E_FLAG_MSIX_ENABLED			BIT_ULL(2)
+#define I40E_FLAG_RSS_ENABLED			BIT_ULL(3)
+#define I40E_FLAG_VMDQ_ENABLED			BIT_ULL(4)
+#define I40E_FLAG_FILTER_SYNC			BIT_ULL(5)
+#define I40E_FLAG_SRIOV_ENABLED			BIT_ULL(6)
+#define I40E_FLAG_DCB_CAPABLE			BIT_ULL(7)
+#define I40E_FLAG_DCB_ENABLED			BIT_ULL(8)
+#define I40E_FLAG_FD_SB_ENABLED			BIT_ULL(9)
+#define I40E_FLAG_FD_ATR_ENABLED		BIT_ULL(10)
+#define I40E_FLAG_FD_SB_AUTO_DISABLED		BIT_ULL(11)
+#define I40E_FLAG_FD_ATR_AUTO_DISABLED		BIT_ULL(12)
+#define I40E_FLAG_MFP_ENABLED			BIT_ULL(13)
+#define I40E_FLAG_UDP_FILTER_SYNC		BIT_ULL(14)
+#define I40E_FLAG_HW_ATR_EVICT_ENABLED		BIT_ULL(15)
+#define I40E_FLAG_VEB_MODE_ENABLED		BIT_ULL(16)
+#define I40E_FLAG_VEB_STATS_ENABLED		BIT_ULL(17)
+#define I40E_FLAG_LINK_POLLING_ENABLED		BIT_ULL(18)
+#define I40E_FLAG_TRUE_PROMISC_SUPPORT		BIT_ULL(19)
+#define I40E_FLAG_TEMP_LINK_POLLING		BIT_ULL(20)
+#define I40E_FLAG_LEGACY_RX			BIT_ULL(21)
+#define I40E_FLAG_PTP				BIT_ULL(22)
+#define I40E_FLAG_IWARP_ENABLED			BIT_ULL(23)
+#define I40E_FLAG_SERVICE_CLIENT_REQUESTED	BIT_ULL(24)
+#define I40E_FLAG_CLIENT_L2_CHANGE		BIT_ULL(25)
+#define I40E_FLAG_CLIENT_RESET			BIT_ULL(26)
+#define I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED	BIT_ULL(27)
 
 	struct i40e_client_instance *cinst;
 	bool stat_offsets_loaded;
@@ -613,7 +614,7 @@ struct i40e_vsi {
 	DECLARE_BITMAP(state, __I40E_VSI_STATE_SIZE__);
 #define I40E_VSI_FLAG_FILTER_CHANGED	BIT(0)
 #define I40E_VSI_FLAG_VEB_OWNER		BIT(1)
-	unsigned long flags;
+	u64 flags;
 
 	/* Per VSI lock to protect elements/hash (MAC filter) */
 	spinlock_t mac_filter_hash_lock;
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf.h b/drivers/net/ethernet/intel/i40evf/i40evf.h
index 7f905368fc93..c89767ee0ab2 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf.h
+++ b/drivers/net/ethernet/intel/i40evf/i40evf.h
@@ -220,21 +220,21 @@ struct i40evf_adapter {
 
 	u32 flags;
 #define I40EVF_FLAG_RX_CSUM_ENABLED		BIT(0)
-#define I40EVF_FLAG_IMIR_ENABLED		BIT(5)
-#define I40EVF_FLAG_MQ_CAPABLE			BIT(6)
-#define I40EVF_FLAG_PF_COMMS_FAILED		BIT(8)
-#define I40EVF_FLAG_RESET_PENDING		BIT(9)
-#define I40EVF_FLAG_RESET_NEEDED		BIT(10)
-#define I40EVF_FLAG_WB_ON_ITR_CAPABLE		BIT(11)
-#define I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE	BIT(12)
-#define I40EVF_FLAG_ADDR_SET_BY_PF		BIT(13)
-#define I40EVF_FLAG_SERVICE_CLIENT_REQUESTED	BIT(14)
-#define I40EVF_FLAG_CLIENT_NEEDS_OPEN		BIT(15)
-#define I40EVF_FLAG_CLIENT_NEEDS_CLOSE		BIT(16)
-#define I40EVF_FLAG_CLIENT_NEEDS_L2_PARAMS	BIT(17)
-#define I40EVF_FLAG_PROMISC_ON			BIT(18)
-#define I40EVF_FLAG_ALLMULTI_ON			BIT(19)
-#define I40EVF_FLAG_LEGACY_RX			BIT(20)
+#define I40EVF_FLAG_IMIR_ENABLED		BIT(1)
+#define I40EVF_FLAG_MQ_CAPABLE			BIT(2)
+#define I40EVF_FLAG_PF_COMMS_FAILED		BIT(3)
+#define I40EVF_FLAG_RESET_PENDING		BIT(4)
+#define I40EVF_FLAG_RESET_NEEDED		BIT(5)
+#define I40EVF_FLAG_WB_ON_ITR_CAPABLE		BIT(6)
+#define I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE	BIT(7)
+#define I40EVF_FLAG_ADDR_SET_BY_PF		BIT(8)
+#define I40EVF_FLAG_SERVICE_CLIENT_REQUESTED	BIT(9)
+#define I40EVF_FLAG_CLIENT_NEEDS_OPEN		BIT(10)
+#define I40EVF_FLAG_CLIENT_NEEDS_CLOSE		BIT(11)
+#define I40EVF_FLAG_CLIENT_NEEDS_L2_PARAMS	BIT(12)
+#define I40EVF_FLAG_PROMISC_ON			BIT(13)
+#define I40EVF_FLAG_ALLMULTI_ON			BIT(14)
+#define I40EVF_FLAG_LEGACY_RX			BIT(15)
 /* duplicates for common code */
 #define I40E_FLAG_DCB_ENABLED			0
 #define I40E_FLAG_RX_CSUM_ENABLED		I40EVF_FLAG_RX_CSUM_ENABLED
-- 
2.14.0

Re: [net-next 08/15] i40e/i40evf: organize and re-number feature flags

[David Miller]

From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Sat, 12 Aug 2017 04:08:41 -0700

> Also ensure that the flags variable is actually a u64 to guarantee
> 64bits of space on all architectures.

Why?  You don't need 64-bits, you only need 27.

This will be unnecessarily expensive on 32-bit platforms.

Please don't do this.

RE: [net-next 08/15] i40e/i40evf: organize and re-number feature flags

[Keller, Jacob E]

> -----Original Message-----
> From: David Miller [mailto:davem@davemloft.net]
> Sent: Saturday, August 12, 2017 1:04 PM
> To: Kirsher, Jeffrey T <jeffrey.t.kirsher@intel.com>
> Cc: Keller, Jacob E <jacob.e.keller@intel.com>; netdev@vger.kernel.org;
> nhorman@redhat.com; sassmann@redhat.com; jogreene@redhat.com
> Subject: Re: [net-next 08/15] i40e/i40evf: organize and re-number feature flags
> 
> From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> Date: Sat, 12 Aug 2017 04:08:41 -0700
> 
> > Also ensure that the flags variable is actually a u64 to guarantee
> > 64bits of space on all architectures.
> 
> Why?  You don't need 64-bits, you only need 27.
> 
> This will be unnecessarily expensive on 32-bit platforms.
> 
> Please don't do this.

I suppose a better method would be to switch to using a declare_bitmap instead, so that it automatically sizes based on the number of flags we have. The reason we chose 64bits is because we will add flags in the future, as we originally had more than 32 flags prior to this patch until we moved some into a separate field.

But now that I think about it, using DECLARE_BITMAP makes more sense, though it's a bit more invasive of the code.

Thanks,
Jake

RE: [net-next 08/15] i40e/i40evf: organize and re-number feature flags

[David Laight]

From: Keller, Jacob E
> Sent: 14 August 2017 23:11
> > From: David Miller [mailto:davem@davemloft.net]
> > Sent: Saturday, August 12, 2017 1:04 PM
> > From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> > Date: Sat, 12 Aug 2017 04:08:41 -0700
> >
> > > Also ensure that the flags variable is actually a u64 to guarantee
> > > 64bits of space on all architectures.
> >
> > Why?  You don't need 64-bits, you only need 27.
> >
> > This will be unnecessarily expensive on 32-bit platforms.
> >
> > Please don't do this.
> 
> I suppose a better method would be to switch to using a declare_bitmap instead, so that it
> automatically sizes based on the number of flags we have. The reason we chose 64bits is because we
> will add flags in the future, as we originally had more than 32 flags prior to this patch until we
> moved some into a separate field.
> 
> But now that I think about it, using DECLARE_BITMAP makes more sense, though it's a bit more invasive
> of the code.

And horribly stupid unless you really need dynamic indexes.

	David

[net-next 09/15] i40e/i40evf: use cmpxchg64 when updating private flags in ethtool

[Jeff Kirsher]

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

When a user gives an invalid command to change a private flag which is
not supported, either because it is read-only, or the device is not
capable of the feature, we simply ignore the request.

A naive solution would simply be to report error codes when one of the
flags was not supported. However, this causes problems because it makes
the operation not atomic. If a user requests multiple private flags
together at once we could end up changing one before failing at the
second flag.

We can do a bit better if we instead update a temporary copy of the
flags variable in the loop, and then copy it into place after. If we
aren't careful this has the pitfall of potentially silently overwriting
any changes caused by other threads.

Avoid this by using cmpxchg64 which will compare and swap the flags
variable only if it currently matched the old value. We'll report
-EAGAIN in the (hopefully rare!) case where the cmpxchg64 fails.

This ensures that we can properly report when flags are not supported in
an atomic fashion without the risk of overwriting other threads changes.

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     | 57 +++++++++++++++-------
 drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c | 41 ++++++++++++----
 2 files changed, 70 insertions(+), 28 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index c76549e41705..a868c8d4fec9 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -4069,23 +4069,26 @@ static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
 	struct i40e_netdev_priv *np = netdev_priv(dev);
 	struct i40e_vsi *vsi = np->vsi;
 	struct i40e_pf *pf = vsi->back;
-	u64 changed_flags;
+	u64 orig_flags, new_flags, changed_flags;
 	u32 i, j;
 
-	changed_flags = pf->flags;
+	orig_flags = READ_ONCE(pf->flags);
+	new_flags = orig_flags;
 
 	for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
 		const struct i40e_priv_flags *priv_flags;
 
 		priv_flags = &i40e_gstrings_priv_flags[i];
 
-		if (priv_flags->read_only)
-			continue;
-
 		if (flags & BIT(i))
-			pf->flags |= priv_flags->flag;
+			new_flags |= priv_flags->flag;
 		else
-			pf->flags &= ~(priv_flags->flag);
+			new_flags &= ~(priv_flags->flag);
+
+		/* If this is a read-only flag, it can't be changed */
+		if (priv_flags->read_only &&
+		    ((orig_flags ^ new_flags) & ~BIT(i)))
+			return -EOPNOTSUPP;
 	}
 
 	if (pf->hw.pf_id != 0)
@@ -4096,18 +4099,40 @@ static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
 
 		priv_flags = &i40e_gl_gstrings_priv_flags[j];
 
-		if (priv_flags->read_only)
-			continue;
-
 		if (flags & BIT(i + j))
-			pf->flags |= priv_flags->flag;
+			new_flags |= priv_flags->flag;
 		else
-			pf->flags &= ~(priv_flags->flag);
+			new_flags &= ~(priv_flags->flag);
+
+		/* If this is a read-only flag, it can't be changed */
+		if (priv_flags->read_only &&
+		    ((orig_flags ^ new_flags) & ~BIT(i)))
+			return -EOPNOTSUPP;
 	}
 
 flags_complete:
-	/* check for flags that changed */
-	changed_flags ^= pf->flags;
+	/* Before we finalize any flag changes, we need to perform some
+	 * checks to ensure that the changes are supported and safe.
+	 */
+
+	/* ATR eviction is not supported on all devices */
+	if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
+	    !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
+		return -EOPNOTSUPP;
+
+	/* Compare and exchange the new flags into place. If we failed, that
+	 * is if cmpxchg64 returns anything but the old value, this means that
+	 * something else has modified the flags variable since we copied it
+	 * originally. We'll just punt with an error and log something in the
+	 * message buffer.
+	 */
+	if (cmpxchg64(&pf->flags, orig_flags, new_flags) != orig_flags) {
+		dev_warn(&pf->pdev->dev,
+			 "Unable to update pf->flags as it was modified by another thread...\n");
+		return -EAGAIN;
+	}
+
+	changed_flags = orig_flags ^ new_flags;
 
 	/* Process any additional changes needed as a result of flag changes.
 	 * The changed_flags value reflects the list of bits that were
@@ -4121,10 +4146,6 @@ static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
 		set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
 	}
 
-	/* Only allow ATR evict on hardware that is capable of handling it */
-	if (!(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
-		pf->flags &= ~I40E_FLAG_HW_ATR_EVICT_ENABLED;
-
 	if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
 		u16 sw_flags = 0, valid_flags = 0;
 		int ret;
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
index 76fd89c1dbb2..65874d6b3ab9 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
@@ -258,29 +258,50 @@ static u32 i40evf_get_priv_flags(struct net_device *netdev)
 static int i40evf_set_priv_flags(struct net_device *netdev, u32 flags)
 {
 	struct i40evf_adapter *adapter = netdev_priv(netdev);
-	u64 changed_flags;
+	u32 orig_flags, new_flags, changed_flags;
 	u32 i;
 
-	changed_flags = adapter->flags;
+	orig_flags = READ_ONCE(adapter->flags);
+	new_flags = orig_flags;
 
 	for (i = 0; i < I40EVF_PRIV_FLAGS_STR_LEN; i++) {
 		const struct i40evf_priv_flags *priv_flags;
 
 		priv_flags = &i40evf_gstrings_priv_flags[i];
 
-		if (priv_flags->read_only)
-			continue;
-
 		if (flags & BIT(i))
-			adapter->flags |= priv_flags->flag;
+			new_flags |= priv_flags->flag;
 		else
-			adapter->flags &= ~(priv_flags->flag);
+			new_flags &= ~(priv_flags->flag);
+
+		if (priv_flags->read_only &&
+		    ((orig_flags ^ new_flags) & ~BIT(i)))
+			return -EOPNOTSUPP;
+	}
+
+	/* Before we finalize any flag changes, any checks which we need to
+	 * perform to determine if the new flags will be supported should go
+	 * here...
+	 */
+
+	/* Compare and exchange the new flags into place. If we failed, that
+	 * is if cmpxchg returns anything but the old value, this means
+	 * something else must have modified the flags variable since we
+	 * copied it. We'll just punt with an error and log something in the
+	 * message buffer.
+	 */
+	if (cmpxchg(&adapter->flags, orig_flags, new_flags) != orig_flags) {
+		dev_warn(&adapter->pdev->dev,
+			 "Unable to update adapter->flags as it was modified by another thread...\n");
+		return -EAGAIN;
 	}
 
-	/* check for flags that changed */
-	changed_flags ^= adapter->flags;
+	changed_flags = orig_flags ^ new_flags;
 
-	/* Process any additional changes needed as a result of flag changes. */
+	/* Process any additional changes needed as a result of flag changes.
+	 * The changed_flags value reflects the list of bits that were changed
+	 * in the code above.
+	 */
 
 	/* issue a reset to force legacy-rx change to take effect */
 	if (changed_flags & I40EVF_FLAG_LEGACY_RX) {
-- 
2.14.0

[net-next 10/15] i40e: move check for avoiding VID=0 filters into i40e_vsi_add_vlan

[Jeff Kirsher]

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

In i40e_vsi_add_vlan we treat attempting to add VID=0 as an error,
because it does not do what the caller might expect. We already special
case VID=0 in i40e_vlan_rx_add_vid so that we avoid this error when
adding the VLAN.

This special casing is necessary so that we do not add the VLAN=0 filter
since we don't want to stop receiving untagged traffic. Unfortunately,
not all callers of i40e_vsi_add_vlan are aware of this, including when
we add VLANs from a VF device.

Rather than special casing every single caller of i40e_vsi_add_vlan,
lets just move this check internally. This makes the code simpler
because the caller does not need to be aware of how VLAN=0 is special,
and we don't forget to add this check in new places.

This fixes a harmless error message displaying when adding a VLAN from
within a VF. The message was meaningless but there is no reason to
confuse end users and system administrators, and this is now avoided.

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 | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 6a59d9367a2a..1b3b681a8b1d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2595,9 +2595,20 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, u16 vid)
 {
 	int err;
 
-	if (!vid || vsi->info.pvid)
+	if (vsi->info.pvid)
 		return -EINVAL;
 
+	/* The network stack will attempt to add VID=0, with the intention to
+	 * receive priority tagged packets with a VLAN of 0. Our HW receives
+	 * these packets by default when configured to receive untagged
+	 * packets, so we don't need to add a filter for this case.
+	 * Additionally, HW interprets adding a VID=0 filter as meaning to
+	 * receive *only* tagged traffic and stops receiving untagged traffic.
+	 * Thus, we do not want to actually add a filter for VID=0
+	 */
+	if (!vid)
+		return 0;
+
 	/* Locked once because all functions invoked below iterates list*/
 	spin_lock_bh(&vsi->mac_filter_hash_lock);
 	err = i40e_add_vlan_all_mac(vsi, vid);
@@ -2674,15 +2685,7 @@ static int i40e_vlan_rx_add_vid(struct net_device *netdev,
 	if (vid >= VLAN_N_VID)
 		return -EINVAL;
 
-	/* If the network stack called us with vid = 0 then
-	 * it is asking to receive priority tagged packets with
-	 * vlan id 0.  Our HW receives them by default when configured
-	 * to receive untagged packets so there is no need to add an
-	 * extra filter for vlan 0 tagged packets.
-	 */
-	if (vid)
-		ret = i40e_vsi_add_vlan(vsi, vid);
-
+	ret = i40e_vsi_add_vlan(vsi, vid);
 	if (!ret)
 		set_bit(vid, vsi->active_vlans);
 
-- 
2.14.0

[net-next 11/15] i40e/i40evf: rename vf_offload_flags to vf_cap_flags in struct virtchnl_vf_resource

[Jeff Kirsher]

From: Stefan Assmann <sassmann@kpanic.de>

The current name of vf_offload_flags indicates that the bitmap is
limited to offload related features. Make this more generic by renaming
it to vf_cap_flags, which allows for other capabilities besides
offloading to be added.

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
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 | 22 +++++++++++-----------
 drivers/net/ethernet/intel/i40evf/i40e_common.c    |  2 +-
 drivers/net/ethernet/intel/i40evf/i40evf.h         | 10 +++++-----
 drivers/net/ethernet/intel/i40evf/i40evf_main.c    | 12 ++++++------
 include/linux/avf/virtchnl.h                       |  4 ++--
 5 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 3ef67dc094fc..057c77be96e4 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1528,39 +1528,39 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 				  VIRTCHNL_VF_OFFLOAD_RSS_REG |
 				  VIRTCHNL_VF_OFFLOAD_VLAN;
 
-	vfres->vf_offload_flags = VIRTCHNL_VF_OFFLOAD_L2;
+	vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
 	vsi = pf->vsi[vf->lan_vsi_idx];
 	if (!vsi->info.pvid)
-		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
+		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
 
 	if (i40e_vf_client_capable(pf, vf->vf_id) &&
 	    (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) {
-		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_IWARP;
+		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP;
 		set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
 	}
 
 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
-		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
+		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
 	} else {
 		if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
 		    (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
-			vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
+			vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
 		else
-			vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
+			vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
 	}
 
 	if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
 		if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
-			vfres->vf_offload_flags |=
+			vfres->vf_cap_flags |=
 				VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
 	}
 
 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
-		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
+		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
 
 	if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
 	    (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
-		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
+		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
 
 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
 		if (pf->flags & I40E_FLAG_MFP_ENABLED) {
@@ -1570,12 +1570,12 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 			aq_ret = I40E_ERR_PARAM;
 			goto err;
 		}
-		vfres->vf_offload_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
+		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
 	}
 
 	if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
 		if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
-			vfres->vf_offload_flags |=
+			vfres->vf_cap_flags |=
 					VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
 	}
 
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_common.c b/drivers/net/ethernet/intel/i40evf/i40e_common.c
index 1dd1938f594f..d69c2e44cd1a 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_common.c
@@ -1104,7 +1104,7 @@ void i40e_vf_parse_hw_config(struct i40e_hw *hw,
 	hw->dev_caps.num_rx_qp = msg->num_queue_pairs;
 	hw->dev_caps.num_tx_qp = msg->num_queue_pairs;
 	hw->dev_caps.num_msix_vectors_vf = msg->max_vectors;
-	hw->dev_caps.dcb = msg->vf_offload_flags &
+	hw->dev_caps.dcb = msg->vf_cap_flags &
 			   VIRTCHNL_VF_OFFLOAD_L2;
 	hw->dev_caps.fcoe = 0;
 	for (i = 0; i < msg->num_vsis; i++) {
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf.h b/drivers/net/ethernet/intel/i40evf/i40evf.h
index c89767ee0ab2..d85e446d8527 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf.h
+++ b/drivers/net/ethernet/intel/i40evf/i40evf.h
@@ -277,19 +277,19 @@ struct i40evf_adapter {
 	enum virtchnl_link_speed link_speed;
 	enum virtchnl_ops current_op;
 #define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \
-			    (_a)->vf_res->vf_offload_flags & \
+			    (_a)->vf_res->vf_cap_flags & \
 				VIRTCHNL_VF_OFFLOAD_IWARP : \
 			    0)
 #define CLIENT_ENABLED(_a) ((_a)->cinst)
 /* RSS by the PF should be preferred over RSS via other methods. */
-#define RSS_PF(_a) ((_a)->vf_res->vf_offload_flags & \
+#define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \
 		    VIRTCHNL_VF_OFFLOAD_RSS_PF)
-#define RSS_AQ(_a) ((_a)->vf_res->vf_offload_flags & \
+#define RSS_AQ(_a) ((_a)->vf_res->vf_cap_flags & \
 		    VIRTCHNL_VF_OFFLOAD_RSS_AQ)
-#define RSS_REG(_a) (!((_a)->vf_res->vf_offload_flags & \
+#define RSS_REG(_a) (!((_a)->vf_res->vf_cap_flags & \
 		       (VIRTCHNL_VF_OFFLOAD_RSS_AQ | \
 			VIRTCHNL_VF_OFFLOAD_RSS_PF)))
-#define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_offload_flags & \
+#define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
 			  VIRTCHNL_VF_OFFLOAD_VLAN)
 	struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */
 	struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 8603911cc550..4a36c2ee3837 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1418,7 +1418,7 @@ static int i40evf_init_rss(struct i40evf_adapter *adapter)
 
 	if (!RSS_PF(adapter)) {
 		/* Enable PCTYPES for RSS, TCP/UDP with IPv4/IPv6 */
-		if (adapter->vf_res->vf_offload_flags &
+		if (adapter->vf_res->vf_cap_flags &
 		    VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
 			adapter->hena = I40E_DEFAULT_RSS_HENA_EXPANDED;
 		else
@@ -2371,7 +2371,7 @@ static netdev_features_t i40evf_fix_features(struct net_device *netdev,
 	struct i40evf_adapter *adapter = netdev_priv(netdev);
 
 	features &= ~I40EVF_VLAN_FEATURES;
-	if (adapter->vf_res->vf_offload_flags & VIRTCHNL_VF_OFFLOAD_VLAN)
+	if (adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN)
 		features |= I40EVF_VLAN_FEATURES;
 	return features;
 }
@@ -2458,7 +2458,7 @@ int i40evf_process_config(struct i40evf_adapter *adapter)
 	/* advertise to stack only if offloads for encapsulated packets is
 	 * supported
 	 */
-	if (vfres->vf_offload_flags & VIRTCHNL_VF_OFFLOAD_ENCAP) {
+	if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ENCAP) {
 		hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL	|
 				   NETIF_F_GSO_GRE		|
 				   NETIF_F_GSO_GRE_CSUM		|
@@ -2468,7 +2468,7 @@ int i40evf_process_config(struct i40evf_adapter *adapter)
 				   NETIF_F_GSO_PARTIAL		|
 				   0;
 
-		if (!(vfres->vf_offload_flags &
+		if (!(vfres->vf_cap_flags &
 		      VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
 			netdev->gso_partial_features |=
 				NETIF_F_GSO_UDP_TUNNEL_CSUM;
@@ -2496,7 +2496,7 @@ int i40evf_process_config(struct i40evf_adapter *adapter)
 	adapter->vsi.work_limit = I40E_DEFAULT_IRQ_WORK;
 	vsi->netdev = adapter->netdev;
 	vsi->qs_handle = adapter->vsi_res->qset_handle;
-	if (vfres->vf_offload_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
+	if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
 		adapter->rss_key_size = vfres->rss_key_size;
 		adapter->rss_lut_size = vfres->rss_lut_size;
 	} else {
@@ -2664,7 +2664,7 @@ static void i40evf_init_task(struct work_struct *work)
 	if (err)
 		goto err_sw_init;
 	i40evf_map_rings_to_vectors(adapter);
-	if (adapter->vf_res->vf_offload_flags &
+	if (adapter->vf_res->vf_cap_flags &
 	    VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
 		adapter->flags |= I40EVF_FLAG_WB_ON_ITR_CAPABLE;
 
diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h
index c893b9520a67..becfca2ae94e 100644
--- a/include/linux/avf/virtchnl.h
+++ b/include/linux/avf/virtchnl.h
@@ -223,7 +223,7 @@ struct virtchnl_vsi_resource {
 
 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
 
-/* VF offload flags
+/* VF capability flags
  * VIRTCHNL_VF_OFFLOAD_L2 flag is inclusive of base mode L2 offloads including
  * TX/RX Checksum offloading and TSO for non-tunnelled packets.
  */
@@ -251,7 +251,7 @@ struct virtchnl_vf_resource {
 	u16 max_vectors;
 	u16 max_mtu;
 
-	u32 vf_offload_flags;
+	u32 vf_cap_flags;
 	u32 rss_key_size;
 	u32 rss_lut_size;
 
-- 
2.14.0

[net-next 12/15] i40evf: use netdev variable in reset task

[Jeff Kirsher]

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

If we're going to bother initializing a variable to reference it we might
as well use it.

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 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 4a36c2ee3837..4dccb67e9268 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1879,7 +1879,7 @@ static void i40evf_reset_task(struct work_struct *work)
 	}
 
 continue_reset:
-	if (netif_running(adapter->netdev)) {
+	if (netif_running(netdev)) {
 		netif_carrier_off(netdev);
 		netif_tx_stop_all_queues(netdev);
 		adapter->link_up = false;
@@ -1947,7 +1947,7 @@ static void i40evf_reset_task(struct work_struct *work)
 	return;
 reset_err:
 	dev_err(&adapter->pdev->dev, "failed to allocate resources during reinit\n");
-	i40evf_close(adapter->netdev);
+	i40evf_close(netdev);
 }
 
 /**
-- 
2.14.0

[net-next 13/15] i40e: use cpumask_copy instead of direct assignment

[Jeff Kirsher]

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

According to the header file cpumask.h, we shouldn't be directly copying
a cpumask_t, since its a bitmap and might not be copied correctly. Lets
use the provided cpumask_copy() function instead.

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     | 2 +-
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 2 +-
 2 files 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 1b3b681a8b1d..b0ccd3c2eec6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3449,7 +3449,7 @@ static void i40e_irq_affinity_notify(struct irq_affinity_notify *notify,
 	struct i40e_q_vector *q_vector =
 		container_of(notify, struct i40e_q_vector, affinity_notify);
 
-	q_vector->affinity_mask = *mask;
+	cpumask_copy(&q_vector->affinity_mask, mask);
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 4dccb67e9268..0d87191b6bac 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -520,7 +520,7 @@ static void i40evf_irq_affinity_notify(struct irq_affinity_notify *notify,
 	struct i40e_q_vector *q_vector =
 		container_of(notify, struct i40e_q_vector, affinity_notify);
 
-	q_vector->affinity_mask = *mask;
+	cpumask_copy(&q_vector->affinity_mask, mask);
 }
 
 /**
-- 
2.14.0

[net-next 14/15] i40e: prevent changing ITR if adaptive-rx/tx enabled

[Jeff Kirsher]

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

Currently the driver allows the user to change (or even disable)
interrupt moderation if adaptive-rx/tx is enabled when this should
not be the case.

Adaptive RX/TX will not respect the user's ITR settings so
allowing the user to change it is weird.  This bug would also
allow the user to disable interrupt moderation with adaptive-rx/tx
enabled which doesn't make much sense either.

This patch makes it such that if adaptive-rx/tx is enabled, the user
cannot make any manual adjustments to interrupt moderation.  It also
makes it so that if ITR is disabled but adaptive-rx/tx is then
enabled, ITR will be re-enabled.

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/i40e/i40e_ethtool.c | 65 +++++++++++++++++---------
 1 file changed, 43 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index a868c8d4fec9..05e89864f781 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -2194,14 +2194,29 @@ static int __i40e_set_coalesce(struct net_device *netdev,
 			       int queue)
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
+	u16 intrl_reg, cur_rx_itr, cur_tx_itr;
 	struct i40e_vsi *vsi = np->vsi;
 	struct i40e_pf *pf = vsi->back;
-	u16 intrl_reg;
 	int i;
 
 	if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
 		vsi->work_limit = ec->tx_max_coalesced_frames_irq;
 
+	if (queue < 0) {
+		cur_rx_itr = vsi->rx_rings[0]->rx_itr_setting;
+		cur_tx_itr = vsi->tx_rings[0]->tx_itr_setting;
+	} else if (queue < vsi->num_queue_pairs) {
+		cur_rx_itr = vsi->rx_rings[queue]->rx_itr_setting;
+		cur_tx_itr = vsi->tx_rings[queue]->tx_itr_setting;
+	} else {
+		netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
+			   vsi->num_queue_pairs - 1);
+		return -EINVAL;
+	}
+
+	cur_tx_itr &= ~I40E_ITR_DYNAMIC;
+	cur_rx_itr &= ~I40E_ITR_DYNAMIC;
+
 	/* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
 	if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
 		netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
@@ -2214,15 +2229,34 @@ static int __i40e_set_coalesce(struct net_device *netdev,
 		return -EINVAL;
 	}
 
-	if (ec->rx_coalesce_usecs == 0) {
-		if (ec->use_adaptive_rx_coalesce)
-			netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
-	} else if ((ec->rx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
-		   (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1))) {
-			netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
-			return -EINVAL;
+	if (ec->rx_coalesce_usecs != cur_rx_itr &&
+	    ec->use_adaptive_rx_coalesce) {
+		netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
+		return -EINVAL;
+	}
+
+	if (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1)) {
+		netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
+		return -EINVAL;
 	}
 
+	if (ec->tx_coalesce_usecs != cur_tx_itr &&
+	    ec->use_adaptive_tx_coalesce) {
+		netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
+		return -EINVAL;
+	}
+
+	if (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1)) {
+		netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
+		return -EINVAL;
+	}
+
+	if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
+		ec->rx_coalesce_usecs = I40E_MIN_ITR << 1;
+
+	if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
+		ec->tx_coalesce_usecs = I40E_MIN_ITR << 1;
+
 	intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
 	vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
 	if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
@@ -2230,27 +2264,14 @@ static int __i40e_set_coalesce(struct net_device *netdev,
 			   vsi->int_rate_limit);
 	}
 
-	if (ec->tx_coalesce_usecs == 0) {
-		if (ec->use_adaptive_tx_coalesce)
-			netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
-	} else if ((ec->tx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
-		   (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1))) {
-			netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
-			return -EINVAL;
-	}
-
 	/* rx and tx usecs has per queue value. If user doesn't specify the queue,
 	 * apply to all queues.
 	 */
 	if (queue < 0) {
 		for (i = 0; i < vsi->num_queue_pairs; i++)
 			i40e_set_itr_per_queue(vsi, ec, i);
-	} else if (queue < vsi->num_queue_pairs) {
-		i40e_set_itr_per_queue(vsi, ec, queue);
 	} else {
-		netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
-			   vsi->num_queue_pairs - 1);
-		return -EINVAL;
+		i40e_set_itr_per_queue(vsi, ec, queue);
 	}
 
 	return 0;
-- 
2.14.0

[net-next 15/15] i40e: synchronize nvmupdate command and adminq subtask

[Jeff Kirsher]

From: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>

During NVM update, state machine gets into unrecoverable state because
i40e_clean_adminq_subtask can get scheduled after the admin queue
command but before other state variables are updated. This causes
incorrect input to i40e_nvmupd_check_wait_event and state transitions
don't happen.

This issue existed before but surfaced after commit 373149fc99a0
("i40e: Decrease the scope of rtnl lock")

This fix adds locking around admin queue command and update of
state variables so that adminq_subtask will have accurate information
whenever it gets scheduled.

Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_nvm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 6fdecd70dcbc..2cf7db2dc7cd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -753,6 +753,11 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
 		hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
 	}
 
+	/* Acquire lock to prevent race condition where adminq_task
+	 * can execute after i40e_nvmupd_nvm_read/write but before state
+	 * variables (nvm_wait_opcode, nvm_release_on_done) are updated
+	 */
+	mutex_lock(&hw->aq.arq_mutex);
 	switch (hw->nvmupd_state) {
 	case I40E_NVMUPD_STATE_INIT:
 		status = i40e_nvmupd_state_init(hw, cmd, bytes, perrno);
@@ -788,6 +793,7 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
 		*perrno = -ESRCH;
 		break;
 	}
+	mutex_unlock(&hw->aq.arq_mutex);
 	return status;
 }
 
-- 
2.14.0

Re: [net-next 15/15] i40e: synchronize nvmupdate command and adminq subtask

[Shannon Nelson]

On Sat, Aug 12, 2017 at 4:08 AM, Jeff Kirsher
<jeffrey.t.kirsher@intel.com> wrote:
> From: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
>
> During NVM update, state machine gets into unrecoverable state because
> i40e_clean_adminq_subtask can get scheduled after the admin queue
> command but before other state variables are updated. This causes
> incorrect input to i40e_nvmupd_check_wait_event and state transitions
> don't happen.
>
> This issue existed before but surfaced after commit 373149fc99a0
> ("i40e: Decrease the scope of rtnl lock")
>
> This fix adds locking around admin queue command and update of
> state variables so that adminq_subtask will have accurate information
> whenever it gets scheduled.
>
> Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_nvm.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
> index 6fdecd70dcbc..2cf7db2dc7cd 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
> @@ -753,6 +753,11 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
>                 hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
>         }
>
> +       /* Acquire lock to prevent race condition where adminq_task
> +        * can execute after i40e_nvmupd_nvm_read/write but before state
> +        * variables (nvm_wait_opcode, nvm_release_on_done) are updated
> +        */
> +       mutex_lock(&hw->aq.arq_mutex);
>         switch (hw->nvmupd_state) {
>         case I40E_NVMUPD_STATE_INIT:
>                 status = i40e_nvmupd_state_init(hw, cmd, bytes, perrno);
> @@ -788,6 +793,7 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
>                 *perrno = -ESRCH;
>                 break;
>         }

Perhaps I missed a patch somewhere, but I think there is still a
return statement in the middle of this switch() (INIT_WAIT and
WRITE_WAIT) that means you can leave the mutex locked.  I thought I
had seen a newer version of this patch that had this fixed

sln

> +       mutex_unlock(&hw->aq.arq_mutex);
>         return status;
>  }
>
> --
> 2.14.0
>



-- 
==============================================
Mr. Shannon Nelson         Parents can't afford to be squeamish.