[net-next 00/11][pull request] 40GbE Intel Wired LAN Driver Updates 2017-03-25

[net-next 00/11][pull request] 40GbE Intel Wired LAN Driver Updates 2017-03-25

[Jeff Kirsher]

This series contains updates to i40e and i40evf only.

Alex updates the driver code so that we can do bulk updates of the page
reference count instead of just incrementing it by one reference at a
time.  Fixed an issue where we were not resetting skb back to NULL when
we have freed it.  Cleaned up the i40e_process_skb_fields() to align with
other Intel drivers.  Removed FCoE code, since it is not supported in any
of the Fortville/Fortpark hardware, so there is not much point of carrying
the code around, especially if it is broken and untested.

Harshitha fixes a bug in the driver where the calculation of the RSS size
was not taking into account the number of traffic classes enabled.

Robert fixes a potential race condition during VF reset by eliminating
IOMMU DMAR Faults caused by VF hardware and when the OS initiates a VF
reset and before the reset is finished we modify the VF's settings.

Carolyn adds a needed delay to accommodate the hardware needs.

Bimmy removes a delay that is no longer needed, since it was only needed
for preproduction hardware.

Colin King fixes null pointer dereference, where VSI was being
dereferenced before the VSI NULL check.

Jake fixes an issue with the recent addition of the "client code" to the
driver, where we attempt to use an uninitialized variable, so correctly
initialize the params variable by calling i40e_client_get_params().

The following are changes since commit 2239cc634395ecce69dd047be9104f71edc417b4:
  Merge branch 'epoll-busypoll'
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue 40GbE

Alexander Duyck (5):
  i40e/i40evf: Update code to better handle incrementing page count
  i40e/i40evf: Fix use after free in Rx cleanup path
  i40e/i40evf: Clean-up process_skb_fields
  i40e: Drop FCoE code from core driver files
  i40e: Drop FCoE code that always evaluates to false or 0

Bimmy Pujari (1):
  i40e: removed no longer needed delays

Carolyn Wyborny (1):
  i40e: fix for queue timing delays

Colin Ian King (1):
  i40evf: dereference VSI after VSI has been null checked

Harshitha Ramamurthy (1):
  i40e: fix configuration of RSS table with DCB

Jacob Keller (1):
  i40e: initialize params before notifying of l2_param_changes

Robert Konklewski (1):
  i40e: Fixed race conditions in VF reset

 drivers/net/ethernet/intel/Kconfig                 |  11 -
 drivers/net/ethernet/intel/i40e/Makefile           |   1 -
 drivers/net/ethernet/intel/i40e/i40e.h             |  62 -----
 drivers/net/ethernet/intel/i40e/i40e_client.c      |   2 +
 drivers/net/ethernet/intel/i40e/i40e_common.c      |  27 --
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c     |  19 --
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c     |  35 ---
 drivers/net/ethernet/intel/i40e/i40e_main.c        | 297 ++-------------------
 drivers/net/ethernet/intel/i40e/i40e_osdep.h       |   3 -
 drivers/net/ethernet/intel/i40e/i40e_prototype.h   |   3 -
 drivers/net/ethernet/intel/i40e/i40e_txrx.c        |  60 ++---
 drivers/net/ethernet/intel/i40e/i40e_txrx.h        |  24 +-
 drivers/net/ethernet/intel/i40e/i40e_type.h        | 138 ----------
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  43 ++-
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h |   1 -
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c      |  33 ++-
 drivers/net/ethernet/intel/i40evf/i40e_txrx.h      |  19 +-
 drivers/net/ethernet/intel/i40evf/i40evf_client.c  |   9 +-
 18 files changed, 114 insertions(+), 673 deletions(-)

-- 
2.12.0

[net-next 01/11] i40e/i40evf: Update code to better handle incrementing page count

[Jeff Kirsher]

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

Update the driver code so that we do bulk updates of the page reference
count instead of just incrementing it by one reference at a time.  The
advantage to doing this is that we cut down on atomic operations and
this in turn should give us a slight improvement in cycles per packet.
In addition if we eventually move this over to using build_skb the gains
will be more noticeable.

I also found and fixed a store forwarding stall from where we were
assigning "*new_buff = *old_buff".  By breaking it up into individual
copies we can avoid this and as a result the performance is slightly
improved.

Change-ID: I1d3880dece4133eca3c32423b04a5467321ccc52
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c   | 25 ++++++++++++++++++-------
 drivers/net/ethernet/intel/i40e/i40e_txrx.h   |  7 ++++++-
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 24 ++++++++++++++++++------
 drivers/net/ethernet/intel/i40evf/i40e_txrx.h |  7 ++++++-
 4 files changed, 48 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 0ca307a6c731..e5c89770cbc2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1154,7 +1154,7 @@ void i40e_clean_rx_ring(struct i40e_ring *rx_ring)
 				     PAGE_SIZE,
 				     DMA_FROM_DEVICE,
 				     I40E_RX_DMA_ATTR);
-		__free_pages(rx_bi->page, 0);
+		__page_frag_cache_drain(rx_bi->page, rx_bi->pagecnt_bias);
 
 		rx_bi->page = NULL;
 		rx_bi->page_offset = 0;
@@ -1299,6 +1299,7 @@ static bool i40e_alloc_mapped_page(struct i40e_ring *rx_ring,
 	bi->dma = dma;
 	bi->page = page;
 	bi->page_offset = 0;
+	bi->pagecnt_bias = 1;
 
 	return true;
 }
@@ -1604,7 +1605,10 @@ static void i40e_reuse_rx_page(struct i40e_ring *rx_ring,
 	rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0;
 
 	/* transfer page from old buffer to new buffer */
-	*new_buff = *old_buff;
+	new_buff->dma		= old_buff->dma;
+	new_buff->page		= old_buff->page;
+	new_buff->page_offset	= old_buff->page_offset;
+	new_buff->pagecnt_bias	= old_buff->pagecnt_bias;
 }
 
 /**
@@ -1656,6 +1660,7 @@ static bool i40e_can_reuse_rx_page(struct i40e_rx_buffer *rx_buffer,
 #if (PAGE_SIZE >= 8192)
 	unsigned int last_offset = PAGE_SIZE - I40E_RXBUFFER_2048;
 #endif
+	unsigned int pagecnt_bias = rx_buffer->pagecnt_bias--;
 
 	/* Is any reuse possible? */
 	if (unlikely(!i40e_page_is_reusable(page)))
@@ -1663,7 +1668,7 @@ static bool i40e_can_reuse_rx_page(struct i40e_rx_buffer *rx_buffer,
 
 #if (PAGE_SIZE < 8192)
 	/* if we are only owner of page we can reuse it */
-	if (unlikely(page_count(page) != 1))
+	if (unlikely(page_count(page) != pagecnt_bias))
 		return false;
 
 	/* flip page offset to other buffer */
@@ -1676,9 +1681,14 @@ static bool i40e_can_reuse_rx_page(struct i40e_rx_buffer *rx_buffer,
 		return false;
 #endif
 
-	/* Inc ref count on page before passing it up to the stack */
-	get_page(page);
-
+	/* If we have drained the page fragment pool we need to update
+	 * the pagecnt_bias and page count so that we fully restock the
+	 * number of references the driver holds.
+	 */
+	if (unlikely(pagecnt_bias == 1)) {
+		page_ref_add(page, USHRT_MAX);
+		rx_buffer->pagecnt_bias = USHRT_MAX;
+	}
 	return true;
 }
 
@@ -1725,7 +1735,6 @@ static bool i40e_add_rx_frag(struct i40e_ring *rx_ring,
 			return true;
 
 		/* this page cannot be reused so discard it */
-		__free_pages(page, 0);
 		return false;
 	}
 
@@ -1819,6 +1828,8 @@ struct sk_buff *i40e_fetch_rx_buffer(struct i40e_ring *rx_ring,
 		/* we are not reusing the buffer so unmap it */
 		dma_unmap_page_attrs(rx_ring->dev, rx_buffer->dma, PAGE_SIZE,
 				     DMA_FROM_DEVICE, I40E_RX_DMA_ATTR);
+		__page_frag_cache_drain(rx_buffer->page,
+					rx_buffer->pagecnt_bias);
 	}
 
 	/* clear contents of buffer_info */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 49c7b2089d8e..77c3e96f5172 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -258,7 +258,12 @@ struct i40e_tx_buffer {
 struct i40e_rx_buffer {
 	dma_addr_t dma;
 	struct page *page;
-	unsigned int page_offset;
+#if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536)
+	__u32 page_offset;
+#else
+	__u16 page_offset;
+#endif
+	__u16 pagecnt_bias;
 };
 
 struct i40e_queue_stats {
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index d7790c08e523..d892922a2ed9 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -526,7 +526,7 @@ void i40evf_clean_rx_ring(struct i40e_ring *rx_ring)
 				     PAGE_SIZE,
 				     DMA_FROM_DEVICE,
 				     I40E_RX_DMA_ATTR);
-		__free_pages(rx_bi->page, 0);
+		__page_frag_cache_drain(rx_bi->page, rx_bi->pagecnt_bias);
 
 		rx_bi->page = NULL;
 		rx_bi->page_offset = 0;
@@ -671,6 +671,7 @@ static bool i40e_alloc_mapped_page(struct i40e_ring *rx_ring,
 	bi->dma = dma;
 	bi->page = page;
 	bi->page_offset = 0;
+	bi->pagecnt_bias = 1;
 
 	return true;
 }
@@ -966,7 +967,10 @@ static void i40e_reuse_rx_page(struct i40e_ring *rx_ring,
 	rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0;
 
 	/* transfer page from old buffer to new buffer */
-	*new_buff = *old_buff;
+	new_buff->dma		= old_buff->dma;
+	new_buff->page		= old_buff->page;
+	new_buff->page_offset	= old_buff->page_offset;
+	new_buff->pagecnt_bias	= old_buff->pagecnt_bias;
 }
 
 /**
@@ -1018,6 +1022,7 @@ static bool i40e_can_reuse_rx_page(struct i40e_rx_buffer *rx_buffer,
 #if (PAGE_SIZE >= 8192)
 	unsigned int last_offset = PAGE_SIZE - I40E_RXBUFFER_2048;
 #endif
+	unsigned int pagecnt_bias = rx_buffer->pagecnt_bias--;
 
 	/* Is any reuse possible? */
 	if (unlikely(!i40e_page_is_reusable(page)))
@@ -1025,7 +1030,7 @@ static bool i40e_can_reuse_rx_page(struct i40e_rx_buffer *rx_buffer,
 
 #if (PAGE_SIZE < 8192)
 	/* if we are only owner of page we can reuse it */
-	if (unlikely(page_count(page) != 1))
+	if (unlikely(page_count(page) != pagecnt_bias))
 		return false;
 
 	/* flip page offset to other buffer */
@@ -1038,8 +1043,14 @@ static bool i40e_can_reuse_rx_page(struct i40e_rx_buffer *rx_buffer,
 		return false;
 #endif
 
-	/* Inc ref count on page before passing it up to the stack */
-	get_page(page);
+	/* If we have drained the page fragment pool we need to update
+	 * the pagecnt_bias and page count so that we fully restock the
+	 * number of references the driver holds.
+	 */
+	if (unlikely(pagecnt_bias == 1)) {
+		page_ref_add(page, USHRT_MAX);
+		rx_buffer->pagecnt_bias = USHRT_MAX;
+	}
 
 	return true;
 }
@@ -1087,7 +1098,6 @@ static bool i40e_add_rx_frag(struct i40e_ring *rx_ring,
 			return true;
 
 		/* this page cannot be reused so discard it */
-		__free_pages(page, 0);
 		return false;
 	}
 
@@ -1181,6 +1191,8 @@ struct sk_buff *i40evf_fetch_rx_buffer(struct i40e_ring *rx_ring,
 		/* we are not reusing the buffer so unmap it */
 		dma_unmap_page_attrs(rx_ring->dev, rx_buffer->dma, PAGE_SIZE,
 				     DMA_FROM_DEVICE, I40E_RX_DMA_ATTR);
+		__page_frag_cache_drain(rx_buffer->page,
+					rx_buffer->pagecnt_bias);
 	}
 
 	/* clear contents of buffer_info */
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
index 013512124e6a..7b41df1909be 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
@@ -244,7 +244,12 @@ struct i40e_tx_buffer {
 struct i40e_rx_buffer {
 	dma_addr_t dma;
 	struct page *page;
-	unsigned int page_offset;
+#if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536)
+	__u32 page_offset;
+#else
+	__u16 page_offset;
+#endif
+	__u16 pagecnt_bias;
 };
 
 struct i40e_queue_stats {
-- 
2.12.0

[net-next 02/11] i40e: fix configuration of RSS table with DCB

[Jeff Kirsher]

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

There exists a bug in the driver where the calculation of the
RSS size was not taking into account the number of traffic classes
enabled. This patch factors in the traffic classes both in
the initial configuration of the table as well as reconfiguration.

Change-ID: I34dcd345ce52faf1d6b9614bea28d450cfd5f621
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 1d8febd721ac..5da990909a88 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8577,9 +8577,12 @@ static int i40e_pf_config_rss(struct i40e_pf *pf)
 	i40e_write_rx_ctl(hw, I40E_PFQF_CTL_0, reg_val);
 
 	/* Determine the RSS size of the VSI */
-	if (!vsi->rss_size)
-		vsi->rss_size = min_t(int, pf->alloc_rss_size,
-				      vsi->num_queue_pairs);
+	if (!vsi->rss_size) {
+		u16 qcount;
+
+		qcount = vsi->num_queue_pairs / vsi->tc_config.numtc;
+		vsi->rss_size = min_t(int, pf->alloc_rss_size, qcount);
+	}
 	if (!vsi->rss_size)
 		return -EINVAL;
 
@@ -8625,6 +8628,8 @@ int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count)
 	new_rss_size = min_t(int, queue_count, pf->rss_size_max);
 
 	if (queue_count != vsi->num_queue_pairs) {
+		u16 qcount;
+
 		vsi->req_queue_pairs = queue_count;
 		i40e_prep_for_reset(pf);
 
@@ -8642,8 +8647,8 @@ int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count)
 		}
 
 		/* Reset vsi->rss_size, as number of enabled queues changed */
-		vsi->rss_size = min_t(int, pf->alloc_rss_size,
-				      vsi->num_queue_pairs);
+		qcount = vsi->num_queue_pairs / vsi->tc_config.numtc;
+		vsi->rss_size = min_t(int, pf->alloc_rss_size, qcount);
 
 		i40e_pf_config_rss(pf);
 	}
-- 
2.12.0

[net-next 03/11] i40e/i40evf: Fix use after free in Rx cleanup path

[Jeff Kirsher]

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

We need to reset skb back to NULL when we have freed it in the Rx cleanup
path.  I found one spot where this wasn't occurring so this patch fixes it.

Change-ID: Iaca68934200732cd4a63eb0bd83b539c95f8c4dd
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c   | 1 +
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index e5c89770cbc2..9f2c9f1b8e06 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1941,6 +1941,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
 		 */
 		if (unlikely(i40e_test_staterr(rx_desc, BIT(I40E_RXD_QW1_ERROR_SHIFT)))) {
 			dev_kfree_skb_any(skb);
+			skb = NULL;
 			continue;
 		}
 
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index d892922a2ed9..38f93075f496 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -1299,6 +1299,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
 		 */
 		if (unlikely(i40e_test_staterr(rx_desc, BIT(I40E_RXD_QW1_ERROR_SHIFT)))) {
 			dev_kfree_skb_any(skb);
+			skb = NULL;
 			continue;
 		}
 
-- 
2.12.0

[net-next 04/11] i40e: Fixed race conditions in VF reset

[Jeff Kirsher]

From: Robert Konklewski <robertx.konklewski@intel.com>

First, this patch eliminates IOMMU DMAR Faults caused by VF hardware.
This is done by enabling VF hardware only after VSI resources are
freed. Otherwise, hardware could DMA into memory that is (or just has
been) being freed.

Then, the VF driver is activated only after VSI resources have been
reallocated. That's because the VF driver can request resources
immediately after it's activated. So they need to be ready at that
point.

The second race condition happens when the OS initiates a VF reset,
and then before it's finished modifies VF's settings by changing its
MAC, VLAN ID, bandwidth allocation, anti-spoof checking, etc. These
functions needed to be blocked while VF is undergoing reset. Otherwise,
they could operate on data structures that had just been freed or not
yet fully initialized.

Change-ID: I43ba5a7ae2c9a1cce3911611ffc4598ae33ae3ff
Signed-off-by: Robert Konklewski <robertx.konklewski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 43 ++++++++++++++++++----
 1 file changed, 35 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index cfe8b78dac0e..d526940ff951 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -809,6 +809,11 @@ static void i40e_free_vf_res(struct i40e_vf *vf)
 	u32 reg_idx, reg;
 	int i, msix_vf;
 
+	/* Start by disabling VF's configuration API to prevent the OS from
+	 * accessing the VF's VSI after it's freed / invalidated.
+	 */
+	clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
+
 	/* free vsi & disconnect it from the parent uplink */
 	if (vf->lan_vsi_idx) {
 		i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
@@ -848,7 +853,6 @@ static void i40e_free_vf_res(struct i40e_vf *vf)
 	/* reset some of the state variables keeping track of the resources */
 	vf->num_queue_pairs = 0;
 	vf->vf_states = 0;
-	clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
 }
 
 /**
@@ -939,6 +943,14 @@ void i40e_reset_vf(struct i40e_vf *vf, bool flr)
 	/* warn the VF */
 	clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
 
+	/* Disable VF's configuration API during reset. The flag is re-enabled
+	 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
+	 * It's normally disabled in i40e_free_vf_res(), but it's safer
+	 * to do it earlier to give some time to finish to any VF config
+	 * functions that may still be running at this point.
+	 */
+	clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
+
 	/* In the case of a VFLR, the HW has already reset the VF and we
 	 * just need to clean up, so don't hit the VFRTRIG register.
 	 */
@@ -982,11 +994,6 @@ void i40e_reset_vf(struct i40e_vf *vf, bool flr)
 	if (!rsd)
 		dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
 			vf->vf_id);
-	wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
-	/* clear the reset bit in the VPGEN_VFRTRIG reg */
-	reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
-	reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
-	wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
 
 	/* On initial reset, we won't have any queues */
 	if (vf->lan_vsi_idx == 0)
@@ -994,8 +1001,24 @@ void i40e_reset_vf(struct i40e_vf *vf, bool flr)
 
 	i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
 complete_reset:
-	/* reallocate VF resources to reset the VSI state */
+	/* free VF resources to begin resetting the VSI state */
 	i40e_free_vf_res(vf);
+
+	/* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
+	 * By doing this we allow HW to access VF memory at any point. If we
+	 * did it any sooner, HW could access memory while it was being freed
+	 * in i40e_free_vf_res(), causing an IOMMU fault.
+	 *
+	 * On the other hand, this needs to be done ASAP, because the VF driver
+	 * is waiting for this to happen and may report a timeout. It's
+	 * harmless, but it gets logged into Guest OS kernel log, so best avoid
+	 * it.
+	 */
+	reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
+	reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
+	wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
+
+	/* reallocate VF resources to finish resetting the VSI state */
 	if (!i40e_alloc_vf_res(vf)) {
 		int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
 		i40e_enable_vf_mappings(vf);
@@ -1006,7 +1029,11 @@ void i40e_reset_vf(struct i40e_vf *vf, bool flr)
 			i40e_notify_client_of_vf_reset(pf, abs_vf_id);
 		vf->num_vlan = 0;
 	}
-	/* tell the VF the reset is done */
+
+	/* Tell the VF driver the reset is done. This needs to be done only
+	 * after VF has been fully initialized, because the VF driver may
+	 * request resources immediately after setting this flag.
+	 */
 	wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
 
 	i40e_flush(hw);
-- 
2.12.0

[net-next 05/11] i40e: fix for queue timing delays

[Jeff Kirsher]

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

This patch adds a delay to Rx queue disables to accommodate HW needs.

Change-ID: I2864ca667ce5dcc2cc44f8718113b719742a46a1
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 5da990909a88..1435033faefe 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4181,6 +4181,8 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable)
 		}
 	}
 
+	/* HW needs up to 50ms to finish RX queue disable*/
+	mdelay(50);
 	return ret;
 }
 
-- 
2.12.0

[net-next 06/11] i40e: removed no longer needed delays

[Jeff Kirsher]

From: Bimmy Pujari <bimmy.pujari@intel.com>

Removed no longer needed delays.  At preproduction stage those delays were
needed but now these delays are not needed.

Signed-off-by: Bimmy Pujari <bimmy.pujari@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 1435033faefe..6ce21cc4bb11 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4101,8 +4101,6 @@ static int i40e_vsi_control_tx(struct i40e_vsi *vsi, bool enable)
 		}
 	}
 
-	if (hw->revision_id == 0)
-		mdelay(50);
 	return ret;
 }
 
-- 
2.12.0

[net-next 07/11] i40e/i40evf: Clean-up process_skb_fields

[Jeff Kirsher]

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

This is a minor clean-up to make the i40e/i40evf process_skb_fields
function look a little more like what we have in igb.  The Rx checksum
function called out a need for skb->protocol but I can't see where it
actually needs it.  I am assuming this is something that was likely
refactored out some time ago as the Rx checksum code has gone through a few
rewrites.

Change-ID: I0b4668a34d90b61b66ded7c7c26e19a3e2d06251
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c   | 8 +++-----
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 8 +++-----
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 9f2c9f1b8e06..a40338fd0126 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1392,8 +1392,6 @@ bool i40e_alloc_rx_buffers(struct i40e_ring *rx_ring, u16 cleaned_count)
  * @vsi: the VSI we care about
  * @skb: skb currently being received and modified
  * @rx_desc: the receive descriptor
- *
- * skb->protocol must be set before this function is called
  **/
 static inline void i40e_rx_checksum(struct i40e_vsi *vsi,
 				    struct sk_buff *skb,
@@ -1555,12 +1553,12 @@ void i40e_process_skb_fields(struct i40e_ring *rx_ring,
 
 	i40e_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
 
-	/* modifies the skb - consumes the enet header */
-	skb->protocol = eth_type_trans(skb, rx_ring->netdev);
-
 	i40e_rx_checksum(rx_ring->vsi, skb, rx_desc);
 
 	skb_record_rx_queue(skb, rx_ring->queue_index);
+
+	/* modifies the skb - consumes the enet header */
+	skb->protocol = eth_type_trans(skb, rx_ring->netdev);
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 38f93075f496..8915c5598d20 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -764,8 +764,6 @@ bool i40evf_alloc_rx_buffers(struct i40e_ring *rx_ring, u16 cleaned_count)
  * @vsi: the VSI we care about
  * @skb: skb currently being received and modified
  * @rx_desc: the receive descriptor
- *
- * skb->protocol must be set before this function is called
  **/
 static inline void i40e_rx_checksum(struct i40e_vsi *vsi,
 				    struct sk_buff *skb,
@@ -917,12 +915,12 @@ void i40evf_process_skb_fields(struct i40e_ring *rx_ring,
 {
 	i40e_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
 
-	/* modifies the skb - consumes the enet header */
-	skb->protocol = eth_type_trans(skb, rx_ring->netdev);
-
 	i40e_rx_checksum(rx_ring->vsi, skb, rx_desc);
 
 	skb_record_rx_queue(skb, rx_ring->queue_index);
+
+	/* modifies the skb - consumes the enet header */
+	skb->protocol = eth_type_trans(skb, rx_ring->netdev);
 }
 
 /**
-- 
2.12.0

[net-next 08/11] i40e: Drop FCoE code from core driver files

[Jeff Kirsher]

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

Looking over the code for FCoE it looks like the Rx path has been broken at
least since the last major Rx refactor almost a year ago.  It seems like
FCoE isn't supported for any of the Fortville/Fortpark hardware so there
isn't much point in carrying the code around, especially if it is broken
and untested.

Change-ID: I892de8fa551cb129ce2361e738ff82ce55fa229e
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/Kconfig               |  11 -
 drivers/net/ethernet/intel/i40e/Makefile         |   1 -
 drivers/net/ethernet/intel/i40e/i40e.h           |  61 +-----
 drivers/net/ethernet/intel/i40e/i40e_common.c    |  27 ---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c   |  19 --
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c   |  35 ---
 drivers/net/ethernet/intel/i40e/i40e_main.c      | 261 +----------------------
 drivers/net/ethernet/intel/i40e/i40e_osdep.h     |   3 -
 drivers/net/ethernet/intel/i40e/i40e_prototype.h |   3 -
 drivers/net/ethernet/intel/i40e/i40e_txrx.c      |  26 ---
 drivers/net/ethernet/intel/i40e/i40e_txrx.h      |  17 --
 drivers/net/ethernet/intel/i40e/i40e_type.h      | 138 ------------
 drivers/net/ethernet/intel/i40evf/i40e_txrx.h    |  12 --
 13 files changed, 2 insertions(+), 612 deletions(-)

diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 1349b45f014d..1542a2158e96 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -235,17 +235,6 @@ config I40E_DCB
 
 	  If unsure, say N.
 
-config I40E_FCOE
-	bool "Fibre Channel over Ethernet (FCoE)"
-	default n
-	depends on I40E && DCB && FCOE
-	---help---
-	  Say Y here if you want to use Fibre Channel over Ethernet (FCoE)
-	  in the driver. This will create new netdev for exclusive FCoE
-	  use with XL710 FCoE offloads enabled.
-
-	  If unsure, say N.
-
 config I40EVF
 	tristate "Intel(R) XL710 X710 Virtual Function Ethernet support"
 	depends on PCI_MSI
diff --git a/drivers/net/ethernet/intel/i40e/Makefile b/drivers/net/ethernet/intel/i40e/Makefile
index 3b3c63e54ed6..4f454d364d0d 100644
--- a/drivers/net/ethernet/intel/i40e/Makefile
+++ b/drivers/net/ethernet/intel/i40e/Makefile
@@ -45,4 +45,3 @@ i40e-objs := i40e_main.o \
 	i40e_virtchnl_pf.o
 
 i40e-$(CONFIG_I40E_DCB) += i40e_dcb.o i40e_dcb_nl.o
-i40e-$(CONFIG_I40E_FCOE) += i40e_fcoe.o
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 3133a1a8b8b3..ee298adbb6db 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -56,9 +56,6 @@
 #include <linux/ptp_clock_kernel.h>
 #include "i40e_type.h"
 #include "i40e_prototype.h"
-#ifdef I40E_FCOE
-#include "i40e_fcoe.h"
-#endif
 #include "i40e_client.h"
 #include "i40e_virtchnl.h"
 #include "i40e_virtchnl_pf.h"
@@ -85,10 +82,6 @@
 		(((pf)->flags & I40E_FLAG_128_QP_RSS_CAPABLE) ? 128 : 64)
 #define I40E_FDIR_RING			0
 #define I40E_FDIR_RING_COUNT		32
-#ifdef I40E_FCOE
-#define I40E_DEFAULT_FCOE		8 /* default number of QPs for FCoE */
-#define I40E_MINIMUM_FCOE		1 /* minimum number of QPs for FCoE */
-#endif /* I40E_FCOE */
 #define I40E_MAX_AQ_BUF_SIZE		4096
 #define I40E_AQ_LEN			256
 #define I40E_AQ_WORK_LIMIT		66 /* max number of VFs + a little */
@@ -347,10 +340,6 @@ struct i40e_pf {
 	u16 num_vmdq_msix;         /* num queue vectors per vmdq pool */
 	u16 num_req_vfs;           /* num VFs requested for this VF */
 	u16 num_vf_qps;            /* num queue pairs per VF */
-#ifdef I40E_FCOE
-	u16 num_fcoe_qps;          /* num fcoe queues this PF has set up */
-	u16 num_fcoe_msix;         /* num queue vectors per fcoe pool */
-#endif /* I40E_FCOE */
 	u16 num_lan_qps;           /* num lan queues this PF has set up */
 	u16 num_lan_msix;          /* num queue vectors for the base PF vsi */
 	u16 num_fdsb_msix;         /* num queue vectors for sideband Fdir */
@@ -411,9 +400,6 @@ struct i40e_pf {
 #define I40E_FLAG_FDIR_REQUIRES_REINIT		BIT_ULL(8)
 #define I40E_FLAG_NEED_LINK_UPDATE		BIT_ULL(9)
 #define I40E_FLAG_IWARP_ENABLED			BIT_ULL(10)
-#ifdef I40E_FCOE
-#define I40E_FLAG_FCOE_ENABLED			BIT_ULL(11)
-#endif /* I40E_FCOE */
 #define I40E_FLAG_CLEAN_ADMINQ			BIT_ULL(14)
 #define I40E_FLAG_FILTER_SYNC			BIT_ULL(15)
 #define I40E_FLAG_SERVICE_CLIENT_REQUESTED	BIT_ULL(16)
@@ -461,10 +447,6 @@ struct i40e_pf {
 	 */
 	u64 hw_disabled_flags;
 
-#ifdef I40E_FCOE
-	struct i40e_fcoe fcoe;
-
-#endif /* I40E_FCOE */
 	struct i40e_client_instance *cinst;
 	bool stat_offsets_loaded;
 	struct i40e_hw_port_stats stats;
@@ -522,6 +504,7 @@ struct i40e_pf {
 
 	u32 fcoe_hmc_filt_num;
 	u32 fcoe_hmc_cntx_num;
+
 	struct i40e_filter_control_settings filter_settings;
 
 	struct ptp_clock *ptp_clock;
@@ -641,11 +624,6 @@ struct i40e_vsi {
 	struct rtnl_link_stats64 net_stats_offsets;
 	struct i40e_eth_stats eth_stats;
 	struct i40e_eth_stats eth_stats_offsets;
-#ifdef I40E_FCOE
-	struct i40e_fcoe_stats fcoe_stats;
-	struct i40e_fcoe_stats fcoe_stats_offsets;
-	bool fcoe_stat_offsets_loaded;
-#endif
 	u32 tx_restart;
 	u32 tx_busy;
 	u64 tx_linearize;
@@ -918,11 +896,6 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi);
 struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 				u16 uplink, u32 param1);
 int i40e_vsi_release(struct i40e_vsi *vsi);
-#ifdef I40E_FCOE
-void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
-			      struct i40e_vsi_context *ctxt,
-			      u8 enabled_tc, bool is_add);
-#endif
 void i40e_service_event_schedule(struct i40e_pf *pf);
 void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id,
 				  u8 *msg, u16 len);
@@ -982,20 +955,7 @@ static inline void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
 
 void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf);
 void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf, bool clearpba);
-#ifdef I40E_FCOE
-void i40e_get_netdev_stats_struct(struct net_device *netdev,
-				  struct rtnl_link_stats64 *storage);
-int i40e_set_mac(struct net_device *netdev, void *p);
-void i40e_set_rx_mode(struct net_device *netdev);
-#endif
 int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
-#ifdef I40E_FCOE
-void i40e_tx_timeout(struct net_device *netdev);
-int i40e_vlan_rx_add_vid(struct net_device *netdev,
-			 __always_unused __be16 proto, u16 vid);
-int i40e_vlan_rx_kill_vid(struct net_device *netdev,
-			  __always_unused __be16 proto, u16 vid);
-#endif
 int i40e_open(struct net_device *netdev);
 int i40e_close(struct net_device *netdev);
 int i40e_vsi_open(struct i40e_vsi *vsi);
@@ -1009,25 +969,6 @@ struct i40e_mac_filter *i40e_add_mac_filter(struct i40e_vsi *vsi,
 int i40e_del_mac_filter(struct i40e_vsi *vsi, const u8 *macaddr);
 bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
 struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, const u8 *macaddr);
-#ifdef I40E_FCOE
-int __i40e_setup_tc(struct net_device *netdev, u32 handle, __be16 proto,
-		    struct tc_to_netdev *tc);
-void i40e_netpoll(struct net_device *netdev);
-int i40e_fcoe_enable(struct net_device *netdev);
-int i40e_fcoe_disable(struct net_device *netdev);
-int i40e_fcoe_vsi_init(struct i40e_vsi *vsi, struct i40e_vsi_context *ctxt);
-u8 i40e_get_fcoe_tc_map(struct i40e_pf *pf);
-void i40e_fcoe_config_netdev(struct net_device *netdev, struct i40e_vsi *vsi);
-void i40e_fcoe_vsi_setup(struct i40e_pf *pf);
-void i40e_init_pf_fcoe(struct i40e_pf *pf);
-int i40e_fcoe_setup_ddp_resources(struct i40e_vsi *vsi);
-void i40e_fcoe_free_ddp_resources(struct i40e_vsi *vsi);
-int i40e_fcoe_handle_offload(struct i40e_ring *rx_ring,
-			     union i40e_rx_desc *rx_desc,
-			     struct sk_buff *skb);
-void i40e_fcoe_handle_status(struct i40e_ring *rx_ring,
-			     union i40e_rx_desc *rx_desc, u8 prog_id);
-#endif /* I40E_FCOE */
 void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
 #ifdef CONFIG_I40E_DCB
 void i40e_dcbnl_flush_apps(struct i40e_pf *pf,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index ece57d6a6e23..95946f41002b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -1088,33 +1088,6 @@ void i40e_pre_tx_queue_cfg(struct i40e_hw *hw, u32 queue, bool enable)
 
 	wr32(hw, I40E_GLLAN_TXPRE_QDIS(reg_block), reg_val);
 }
-#ifdef I40E_FCOE
-
-/**
- * i40e_get_san_mac_addr - get SAN MAC address
- * @hw: pointer to the HW structure
- * @mac_addr: pointer to SAN MAC address
- *
- * Reads the adapter's SAN MAC address from NVM
- **/
-i40e_status i40e_get_san_mac_addr(struct i40e_hw *hw, u8 *mac_addr)
-{
-	struct i40e_aqc_mac_address_read_data addrs;
-	i40e_status status;
-	u16 flags = 0;
-
-	status = i40e_aq_mac_address_read(hw, &flags, &addrs, NULL);
-	if (status)
-		return status;
-
-	if (flags & I40E_AQC_SAN_ADDR_VALID)
-		ether_addr_copy(mac_addr, addrs.pf_san_mac);
-	else
-		status = I40E_ERR_INVALID_MAC_ADDR;
-
-	return status;
-}
-#endif
 
 /**
  *  i40e_read_pba_string - Reads part number string from EEPROM
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 267ad2588255..c5f68cc1edcd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -484,25 +484,6 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 			 vsi->bw_ets_limit_credits[i],
 			 vsi->bw_ets_max_quanta[i]);
 	}
-#ifdef I40E_FCOE
-	if (vsi->type == I40E_VSI_FCOE) {
-		dev_info(&pf->pdev->dev,
-			 "    fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
-			 vsi->fcoe_stats.rx_fcoe_packets,
-			 vsi->fcoe_stats.rx_fcoe_dwords,
-			 vsi->fcoe_stats.rx_fcoe_dropped);
-		dev_info(&pf->pdev->dev,
-			 "    fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
-			 vsi->fcoe_stats.tx_fcoe_packets,
-			 vsi->fcoe_stats.tx_fcoe_dwords);
-		dev_info(&pf->pdev->dev,
-			 "    fcoe_stats: bad_crc = %llu, last_error = %llu\n",
-			 vsi->fcoe_stats.fcoe_bad_fccrc,
-			 vsi->fcoe_stats.fcoe_last_error);
-		dev_info(&pf->pdev->dev, "    fcoe_stats: ddp_count = %llu\n",
-			 vsi->fcoe_stats.fcoe_ddp_count);
-	}
-#endif
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 8fac124ebcb5..c8c566a0a6c3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -162,19 +162,6 @@ static const struct i40e_stats i40e_gstrings_stats[] = {
 	I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
 };
 
-#ifdef I40E_FCOE
-static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
-	I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
-	I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
-	I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
-	I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
-	I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
-	I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
-	I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
-	I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
-};
-
-#endif /* I40E_FCOE */
 #define I40E_QUEUE_STATS_LEN(n) \
 	(((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
 	    * 2 /* Tx and Rx together */                                     \
@@ -182,17 +169,9 @@ static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
 #define I40E_GLOBAL_STATS_LEN	ARRAY_SIZE(i40e_gstrings_stats)
 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 #define I40E_MISC_STATS_LEN	ARRAY_SIZE(i40e_gstrings_misc_stats)
-#ifdef I40E_FCOE
-#define I40E_FCOE_STATS_LEN	ARRAY_SIZE(i40e_gstrings_fcoe_stats)
-#define I40E_VSI_STATS_LEN(n)	(I40E_NETDEV_STATS_LEN + \
-				 I40E_FCOE_STATS_LEN + \
-				 I40E_MISC_STATS_LEN + \
-				 I40E_QUEUE_STATS_LEN((n)))
-#else
 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 				 I40E_MISC_STATS_LEN + \
 				 I40E_QUEUE_STATS_LEN((n)))
-#endif /* I40E_FCOE */
 #define I40E_PFC_STATS_LEN ( \
 		(FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
@@ -1530,13 +1509,6 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 		data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
 			    sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 	}
-#ifdef I40E_FCOE
-	for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
-		p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
-		data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
-			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
-	}
-#endif
 	rcu_read_lock();
 	for (j = 0; j < vsi->num_queue_pairs; j++) {
 		tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
@@ -1624,13 +1596,6 @@ static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 				 i40e_gstrings_misc_stats[i].stat_string);
 			p += ETH_GSTRING_LEN;
 		}
-#ifdef I40E_FCOE
-		for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
-			snprintf(p, ETH_GSTRING_LEN, "%s",
-				 i40e_gstrings_fcoe_stats[i].stat_string);
-			p += ETH_GSTRING_LEN;
-		}
-#endif
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
 			snprintf(p, ETH_GSTRING_LEN, "tx-%d.tx_packets", i);
 			p += ETH_GSTRING_LEN;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 6ce21cc4bb11..f4258ec3a68c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -299,11 +299,7 @@ void i40e_service_event_schedule(struct i40e_pf *pf)
  * device is munged, not just the one netdev port, so go for the full
  * reset.
  **/
-#ifdef I40E_FCOE
-void i40e_tx_timeout(struct net_device *netdev)
-#else
 static void i40e_tx_timeout(struct net_device *netdev)
-#endif
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
@@ -408,10 +404,7 @@ struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi)
  * Returns the address of the device statistics structure.
  * The statistics are actually updated from the service task.
  **/
-#ifndef I40E_FCOE
-static
-#endif
-void i40e_get_netdev_stats_struct(struct net_device *netdev,
+static void i40e_get_netdev_stats_struct(struct net_device *netdev,
 				  struct rtnl_link_stats64 *stats)
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
@@ -723,55 +716,6 @@ static void i40e_update_veb_stats(struct i40e_veb *veb)
 	veb->stat_offsets_loaded = true;
 }
 
-#ifdef I40E_FCOE
-/**
- * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
- * @vsi: the VSI that is capable of doing FCoE
- **/
-static void i40e_update_fcoe_stats(struct i40e_vsi *vsi)
-{
-	struct i40e_pf *pf = vsi->back;
-	struct i40e_hw *hw = &pf->hw;
-	struct i40e_fcoe_stats *ofs;
-	struct i40e_fcoe_stats *fs;     /* device's eth stats */
-	int idx;
-
-	if (vsi->type != I40E_VSI_FCOE)
-		return;
-
-	idx = hw->pf_id + I40E_FCOE_PF_STAT_OFFSET;
-	fs = &vsi->fcoe_stats;
-	ofs = &vsi->fcoe_stats_offsets;
-
-	i40e_stat_update32(hw, I40E_GL_FCOEPRC(idx),
-			   vsi->fcoe_stat_offsets_loaded,
-			   &ofs->rx_fcoe_packets, &fs->rx_fcoe_packets);
-	i40e_stat_update48(hw, I40E_GL_FCOEDWRCH(idx), I40E_GL_FCOEDWRCL(idx),
-			   vsi->fcoe_stat_offsets_loaded,
-			   &ofs->rx_fcoe_dwords, &fs->rx_fcoe_dwords);
-	i40e_stat_update32(hw, I40E_GL_FCOERPDC(idx),
-			   vsi->fcoe_stat_offsets_loaded,
-			   &ofs->rx_fcoe_dropped, &fs->rx_fcoe_dropped);
-	i40e_stat_update32(hw, I40E_GL_FCOEPTC(idx),
-			   vsi->fcoe_stat_offsets_loaded,
-			   &ofs->tx_fcoe_packets, &fs->tx_fcoe_packets);
-	i40e_stat_update48(hw, I40E_GL_FCOEDWTCH(idx), I40E_GL_FCOEDWTCL(idx),
-			   vsi->fcoe_stat_offsets_loaded,
-			   &ofs->tx_fcoe_dwords, &fs->tx_fcoe_dwords);
-	i40e_stat_update32(hw, I40E_GL_FCOECRC(idx),
-			   vsi->fcoe_stat_offsets_loaded,
-			   &ofs->fcoe_bad_fccrc, &fs->fcoe_bad_fccrc);
-	i40e_stat_update32(hw, I40E_GL_FCOELAST(idx),
-			   vsi->fcoe_stat_offsets_loaded,
-			   &ofs->fcoe_last_error, &fs->fcoe_last_error);
-	i40e_stat_update32(hw, I40E_GL_FCOEDDPC(idx),
-			   vsi->fcoe_stat_offsets_loaded,
-			   &ofs->fcoe_ddp_count, &fs->fcoe_ddp_count);
-
-	vsi->fcoe_stat_offsets_loaded = true;
-}
-
-#endif
 /**
  * i40e_update_vsi_stats - Update the vsi statistics counters.
  * @vsi: the VSI to be updated
@@ -1129,9 +1073,6 @@ void i40e_update_stats(struct i40e_vsi *vsi)
 		i40e_update_pf_stats(pf);
 
 	i40e_update_vsi_stats(vsi);
-#ifdef I40E_FCOE
-	i40e_update_fcoe_stats(vsi);
-#endif
 }
 
 /**
@@ -1562,11 +1503,7 @@ int i40e_del_mac_filter(struct i40e_vsi *vsi, const u8 *macaddr)
  *
  * Returns 0 on success, negative on failure
  **/
-#ifdef I40E_FCOE
-int i40e_set_mac(struct net_device *netdev, void *p)
-#else
 static int i40e_set_mac(struct net_device *netdev, void *p)
-#endif
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
@@ -1626,17 +1563,10 @@ static int i40e_set_mac(struct net_device *netdev, void *p)
  *
  * Setup VSI queue mapping for enabled traffic classes.
  **/
-#ifdef I40E_FCOE
-void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
-			      struct i40e_vsi_context *ctxt,
-			      u8 enabled_tc,
-			      bool is_add)
-#else
 static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 				     struct i40e_vsi_context *ctxt,
 				     u8 enabled_tc,
 				     bool is_add)
-#endif
 {
 	struct i40e_pf *pf = vsi->back;
 	u16 sections = 0;
@@ -1686,11 +1616,6 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 				qcount = min_t(int, pf->alloc_rss_size,
 					       num_tc_qps);
 				break;
-#ifdef I40E_FCOE
-			case I40E_VSI_FCOE:
-				qcount = num_tc_qps;
-				break;
-#endif
 			case I40E_VSI_FDIR:
 			case I40E_VSI_SRIOV:
 			case I40E_VSI_VMDQ2:
@@ -1800,11 +1725,7 @@ static int i40e_addr_unsync(struct net_device *netdev, const u8 *addr)
  * i40e_set_rx_mode - NDO callback to set the netdev filters
  * @netdev: network interface device structure
  **/
-#ifdef I40E_FCOE
-void i40e_set_rx_mode(struct net_device *netdev)
-#else
 static void i40e_set_rx_mode(struct net_device *netdev)
-#endif
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
@@ -2702,13 +2623,8 @@ void i40e_vsi_kill_vlan(struct i40e_vsi *vsi, u16 vid)
  *
  * net_device_ops implementation for adding vlan ids
  **/
-#ifdef I40E_FCOE
-int i40e_vlan_rx_add_vid(struct net_device *netdev,
-			 __always_unused __be16 proto, u16 vid)
-#else
 static int i40e_vlan_rx_add_vid(struct net_device *netdev,
 				__always_unused __be16 proto, u16 vid)
-#endif
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
@@ -2739,13 +2655,8 @@ static int i40e_vlan_rx_add_vid(struct net_device *netdev,
  *
  * net_device_ops implementation for removing vlan ids
  **/
-#ifdef I40E_FCOE
-int i40e_vlan_rx_kill_vid(struct net_device *netdev,
-			  __always_unused __be16 proto, u16 vid)
-#else
 static int i40e_vlan_rx_kill_vid(struct net_device *netdev,
 				 __always_unused __be16 proto, u16 vid)
-#endif
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
@@ -2915,9 +2826,6 @@ static int i40e_vsi_setup_rx_resources(struct i40e_vsi *vsi)
 
 	for (i = 0; i < vsi->num_queue_pairs && !err; i++)
 		err = i40e_setup_rx_descriptors(vsi->rx_rings[i]);
-#ifdef I40E_FCOE
-	i40e_fcoe_setup_ddp_resources(vsi);
-#endif
 	return err;
 }
 
@@ -2937,9 +2845,6 @@ static void i40e_vsi_free_rx_resources(struct i40e_vsi *vsi)
 	for (i = 0; i < vsi->num_queue_pairs; i++)
 		if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc)
 			i40e_free_rx_resources(vsi->rx_rings[i]);
-#ifdef I40E_FCOE
-	i40e_fcoe_free_ddp_resources(vsi);
-#endif
 }
 
 /**
@@ -3010,9 +2915,6 @@ static int i40e_configure_tx_ring(struct i40e_ring *ring)
 	tx_ctx.qlen = ring->count;
 	tx_ctx.fd_ena = !!(vsi->back->flags & (I40E_FLAG_FD_SB_ENABLED |
 					       I40E_FLAG_FD_ATR_ENABLED));
-#ifdef I40E_FCOE
-	tx_ctx.fc_ena = (vsi->type == I40E_VSI_FCOE);
-#endif
 	tx_ctx.timesync_ena = !!(vsi->back->flags & I40E_FLAG_PTP);
 	/* FDIR VSI tx ring can still use RS bit and writebacks */
 	if (vsi->type != I40E_VSI_FDIR)
@@ -3115,9 +3017,6 @@ static int i40e_configure_rx_ring(struct i40e_ring *ring)
 	rx_ctx.l2tsel = 1;
 	/* this controls whether VLAN is stripped from inner headers */
 	rx_ctx.showiv = 0;
-#ifdef I40E_FCOE
-	rx_ctx.fc_ena = (vsi->type == I40E_VSI_FCOE);
-#endif
 	/* set the prefena field to 1 because the manual says to */
 	rx_ctx.prefena = 1;
 
@@ -3184,15 +3083,6 @@ static int i40e_vsi_configure_rx(struct i40e_vsi *vsi)
 
 	vsi->rx_buf_len = I40E_RXBUFFER_2048;
 
-#ifdef I40E_FCOE
-	/* setup rx buffer for FCoE */
-	if ((vsi->type == I40E_VSI_FCOE) &&
-	    (vsi->back->flags & I40E_FLAG_FCOE_ENABLED)) {
-		vsi->rx_buf_len = I40E_RXBUFFER_3072;
-		vsi->max_frame = I40E_RXBUFFER_3072;
-	}
-
-#endif /* I40E_FCOE */
 	/* round up for the chip's needs */
 	vsi->rx_buf_len = ALIGN(vsi->rx_buf_len,
 				BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT));
@@ -3994,11 +3884,7 @@ static int i40e_vsi_request_irq(struct i40e_vsi *vsi, char *basename)
  * This is used by netconsole to send skbs without having to re-enable
  * interrupts.  It's not called while the normal interrupt routine is executing.
  **/
-#ifdef I40E_FCOE
-void i40e_netpoll(struct net_device *netdev)
-#else
 static void i40e_netpoll(struct net_device *netdev)
-#endif
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
@@ -5220,20 +5106,12 @@ static void i40e_dcb_reconfigure(struct i40e_pf *pf)
 			continue;
 
 		/* - Enable all TCs for the LAN VSI
-#ifdef I40E_FCOE
-		 * - For FCoE VSI only enable the TC configured
-		 *   as per the APP TLV
-#endif
 		 * - For all others keep them at TC0 for now
 		 */
 		if (v == pf->lan_vsi)
 			tc_map = i40e_pf_get_tc_map(pf);
 		else
 			tc_map = I40E_DEFAULT_TRAFFIC_CLASS;
-#ifdef I40E_FCOE
-		if (pf->vsi[v]->type == I40E_VSI_FCOE)
-			tc_map = i40e_get_fcoe_tc_map(pf);
-#endif /* #ifdef I40E_FCOE */
 
 		ret = i40e_vsi_config_tc(pf->vsi[v], tc_map);
 		if (ret) {
@@ -5597,13 +5475,8 @@ static int i40e_setup_tc(struct net_device *netdev, u8 tc)
 	return ret;
 }
 
-#ifdef I40E_FCOE
-int __i40e_setup_tc(struct net_device *netdev, u32 handle, __be16 proto,
-		    struct tc_to_netdev *tc)
-#else
 static int __i40e_setup_tc(struct net_device *netdev, u32 handle, __be16 proto,
 			   struct tc_to_netdev *tc)
-#endif
 {
 	if (tc->type != TC_SETUP_MQPRIO)
 		return -EINVAL;
@@ -6316,9 +6189,6 @@ static void i40e_vsi_link_event(struct i40e_vsi *vsi, bool link_up)
 
 	switch (vsi->type) {
 	case I40E_VSI_MAIN:
-#ifdef I40E_FCOE
-	case I40E_VSI_FCOE:
-#endif
 		if (!vsi->netdev || !vsi->netdev_registered)
 			break;
 
@@ -7120,10 +6990,6 @@ static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit)
 		/* Continue without DCB enabled */
 	}
 #endif /* CONFIG_I40E_DCB */
-#ifdef I40E_FCOE
-	i40e_init_pf_fcoe(pf);
-
-#endif
 	/* do basic switch setup */
 	ret = i40e_setup_pf_switch(pf, reinit);
 	if (ret)
@@ -7528,15 +7394,6 @@ static int i40e_set_num_rings_in_vsi(struct i40e_vsi *vsi)
 				      I40E_REQ_DESCRIPTOR_MULTIPLE);
 		break;
 
-#ifdef I40E_FCOE
-	case I40E_VSI_FCOE:
-		vsi->alloc_queue_pairs = pf->num_fcoe_qps;
-		vsi->num_desc = ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS,
-				      I40E_REQ_DESCRIPTOR_MULTIPLE);
-		vsi->num_q_vectors = pf->num_fcoe_msix;
-		break;
-
-#endif /* I40E_FCOE */
 	default:
 		WARN_ON(1);
 		return -ENODATA;
@@ -7872,9 +7729,6 @@ static int i40e_init_msix(struct i40e_pf *pf)
 	 *	- assumes symmetric Tx/Rx pairing
 	 *   - The number of VMDq pairs
 	 *   - The CPU count within the NUMA node if iWARP is enabled
-#ifdef I40E_FCOE
-	 *   - The number of FCOE qps.
-#endif
 	 * Once we count this up, try the request.
 	 *
 	 * If we can't get what we want, we'll simplify to nearly nothing
@@ -7911,20 +7765,6 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		}
 	}
 
-#ifdef I40E_FCOE
-	/* can we reserve enough for FCoE? */
-	if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
-		if (!vectors_left)
-			pf->num_fcoe_msix = 0;
-		else if (vectors_left >= pf->num_fcoe_qps)
-			pf->num_fcoe_msix = pf->num_fcoe_qps;
-		else
-			pf->num_fcoe_msix = 1;
-		v_budget += pf->num_fcoe_msix;
-		vectors_left -= pf->num_fcoe_msix;
-	}
-
-#endif
 	/* can we reserve enough for iWARP? */
 	if (pf->flags & I40E_FLAG_IWARP_ENABLED) {
 		iwarp_requested = pf->num_iwarp_msix;
@@ -8018,10 +7858,6 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		pf->num_vmdq_msix = 1;    /* force VMDqs to only one vector */
 		pf->num_vmdq_vsis = 1;
 		pf->num_vmdq_qps = 1;
-#ifdef I40E_FCOE
-		pf->num_fcoe_qps = 0;
-		pf->num_fcoe_msix = 0;
-#endif
 
 		/* partition out the remaining vectors */
 		switch (vec) {
@@ -8035,13 +7871,6 @@ static int i40e_init_msix(struct i40e_pf *pf)
 			} else {
 				pf->num_lan_msix = 2;
 			}
-#ifdef I40E_FCOE
-			/* give one vector to FCoE */
-			if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
-				pf->num_lan_msix = 1;
-				pf->num_fcoe_msix = 1;
-			}
-#endif
 			break;
 		default:
 			if (pf->flags & I40E_FLAG_IWARP_ENABLED) {
@@ -8061,13 +7890,6 @@ static int i40e_init_msix(struct i40e_pf *pf)
 			       (vec - (pf->num_iwarp_msix + pf->num_vmdq_vsis)),
 							      pf->num_lan_msix);
 			pf->num_lan_qps = pf->num_lan_msix;
-#ifdef I40E_FCOE
-			/* give one vector to FCoE */
-			if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
-				pf->num_fcoe_msix = 1;
-				vec--;
-			}
-#endif
 			break;
 		}
 	}
@@ -8088,13 +7910,6 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		dev_info(&pf->pdev->dev, "IWARP disabled, not enough MSI-X vectors\n");
 		pf->flags &= ~I40E_FLAG_IWARP_ENABLED;
 	}
-#ifdef I40E_FCOE
-
-	if ((pf->flags & I40E_FLAG_FCOE_ENABLED) && (pf->num_fcoe_msix == 0)) {
-		dev_info(&pf->pdev->dev, "FCOE disabled, not enough MSI-X vectors\n");
-		pf->flags &= ~I40E_FLAG_FCOE_ENABLED;
-	}
-#endif
 	i40e_debug(&pf->hw, I40E_DEBUG_INIT,
 		   "MSI-X vector distribution: PF %d, VMDq %d, FDSB %d, iWARP %d\n",
 		   pf->num_lan_msix,
@@ -8193,9 +8008,6 @@ static int i40e_init_interrupt_scheme(struct i40e_pf *pf)
 		if (vectors < 0) {
 			pf->flags &= ~(I40E_FLAG_MSIX_ENABLED	|
 				       I40E_FLAG_IWARP_ENABLED	|
-#ifdef I40E_FCOE
-				       I40E_FLAG_FCOE_ENABLED	|
-#endif
 				       I40E_FLAG_RSS_ENABLED	|
 				       I40E_FLAG_DCB_CAPABLE	|
 				       I40E_FLAG_DCB_ENABLED	|
@@ -8881,10 +8693,6 @@ static int i40e_sw_init(struct i40e_pf *pf)
 		pf->num_iwarp_msix = (int)num_online_cpus() + 1;
 	}
 
-#ifdef I40E_FCOE
-	i40e_init_pf_fcoe(pf);
-
-#endif /* I40E_FCOE */
 #ifdef CONFIG_PCI_IOV
 	if (pf->hw.func_caps.num_vfs && pf->hw.partition_id == 1) {
 		pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
@@ -9411,10 +9219,6 @@ static const struct net_device_ops i40e_netdev_ops = {
 	.ndo_poll_controller	= i40e_netpoll,
 #endif
 	.ndo_setup_tc		= __i40e_setup_tc,
-#ifdef I40E_FCOE
-	.ndo_fcoe_enable	= i40e_fcoe_enable,
-	.ndo_fcoe_disable	= i40e_fcoe_disable,
-#endif
 	.ndo_set_features	= i40e_set_features,
 	.ndo_set_vf_mac		= i40e_ndo_set_vf_mac,
 	.ndo_set_vf_vlan	= i40e_ndo_set_vf_port_vlan,
@@ -9548,9 +9352,6 @@ static int i40e_config_netdev(struct i40e_vsi *vsi)
 	netdev->netdev_ops = &i40e_netdev_ops;
 	netdev->watchdog_timeo = 5 * HZ;
 	i40e_set_ethtool_ops(netdev);
-#ifdef I40E_FCOE
-	i40e_fcoe_config_netdev(netdev, vsi);
-#endif
 
 	/* MTU range: 68 - 9706 */
 	netdev->min_mtu = ETH_MIN_MTU;
@@ -9774,16 +9575,6 @@ static int i40e_add_vsi(struct i40e_vsi *vsi)
 		i40e_vsi_setup_queue_map(vsi, &ctxt, enabled_tc, true);
 		break;
 
-#ifdef I40E_FCOE
-	case I40E_VSI_FCOE:
-		ret = i40e_fcoe_vsi_init(vsi, &ctxt);
-		if (ret) {
-			dev_info(&pf->pdev->dev, "failed to initialize FCoE VSI\n");
-			return ret;
-		}
-		break;
-
-#endif /* I40E_FCOE */
 	case I40E_VSI_IWARP:
 		/* send down message to iWARP */
 		break;
@@ -10200,7 +9991,6 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 			}
 		}
 	case I40E_VSI_VMDQ2:
-	case I40E_VSI_FCOE:
 		ret = i40e_config_netdev(vsi);
 		if (ret)
 			goto err_netdev;
@@ -10860,9 +10650,6 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf)
 	int queues_left;
 
 	pf->num_lan_qps = 0;
-#ifdef I40E_FCOE
-	pf->num_fcoe_qps = 0;
-#endif
 
 	/* Find the max queues to be put into basic use.  We'll always be
 	 * using TC0, whether or not DCB is running, and TC0 will get the
@@ -10879,9 +10666,6 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf)
 		/* make sure all the fancies are disabled */
 		pf->flags &= ~(I40E_FLAG_RSS_ENABLED	|
 			       I40E_FLAG_IWARP_ENABLED	|
-#ifdef I40E_FCOE
-			       I40E_FLAG_FCOE_ENABLED	|
-#endif
 			       I40E_FLAG_FD_SB_ENABLED	|
 			       I40E_FLAG_FD_ATR_ENABLED	|
 			       I40E_FLAG_DCB_CAPABLE	|
@@ -10898,9 +10682,6 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf)
 
 		pf->flags &= ~(I40E_FLAG_RSS_ENABLED	|
 			       I40E_FLAG_IWARP_ENABLED	|
-#ifdef I40E_FCOE
-			       I40E_FLAG_FCOE_ENABLED	|
-#endif
 			       I40E_FLAG_FD_SB_ENABLED	|
 			       I40E_FLAG_FD_ATR_ENABLED	|
 			       I40E_FLAG_DCB_ENABLED	|
@@ -10921,22 +10702,6 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf)
 		queues_left -= pf->num_lan_qps;
 	}
 
-#ifdef I40E_FCOE
-	if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
-		if (I40E_DEFAULT_FCOE <= queues_left) {
-			pf->num_fcoe_qps = I40E_DEFAULT_FCOE;
-		} else if (I40E_MINIMUM_FCOE <= queues_left) {
-			pf->num_fcoe_qps = I40E_MINIMUM_FCOE;
-		} else {
-			pf->num_fcoe_qps = 0;
-			pf->flags &= ~I40E_FLAG_FCOE_ENABLED;
-			dev_info(&pf->pdev->dev, "not enough queues for FCoE. FCoE feature will be disabled\n");
-		}
-
-		queues_left -= pf->num_fcoe_qps;
-	}
-
-#endif
 	if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
 		if (queues_left > 1) {
 			queues_left -= 1; /* save 1 queue for FD */
@@ -10968,9 +10733,6 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf)
 		pf->num_lan_qps, pf->alloc_rss_size, pf->num_req_vfs,
 		pf->num_vf_qps, pf->num_vmdq_vsis, pf->num_vmdq_qps,
 		queues_left);
-#ifdef I40E_FCOE
-	dev_dbg(&pf->pdev->dev, "fcoe queues = %d\n", pf->num_fcoe_qps);
-#endif
 }
 
 /**
@@ -11037,10 +10799,6 @@ static void i40e_print_features(struct i40e_pf *pf)
 	i += snprintf(&buf[i], REMAIN(i), " Geneve");
 	if (pf->flags & I40E_FLAG_PTP)
 		i += snprintf(&buf[i], REMAIN(i), " PTP");
-#ifdef I40E_FCOE
-	if (pf->flags & I40E_FLAG_FCOE_ENABLED)
-		i += snprintf(&buf[i], REMAIN(i), " FCOE");
-#endif
 	if (pf->flags & I40E_FLAG_VEB_MODE_ENABLED)
 		i += snprintf(&buf[i], REMAIN(i), " VEB");
 	else
@@ -11294,18 +11052,6 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	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;
-#ifdef I40E_FCOE
-	err = i40e_get_san_mac_addr(hw, hw->mac.san_addr);
-	if (err)
-		dev_info(&pdev->dev,
-			 "(non-fatal) SAN MAC retrieval failed: %d\n", err);
-	if (!is_valid_ether_addr(hw->mac.san_addr)) {
-		dev_warn(&pdev->dev, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
-			 hw->mac.san_addr);
-		ether_addr_copy(hw->mac.san_addr, hw->mac.addr);
-	}
-	dev_info(&pf->pdev->dev, "SAN MAC: %pM\n", hw->mac.san_addr);
-#endif /* I40E_FCOE */
 
 	pci_set_drvdata(pdev, pf);
 	pci_save_state(pdev);
@@ -11501,11 +11247,6 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		dev_info(&pdev->dev, "Failed to add PF to client API service list: %d\n",
 			 err);
 
-#ifdef I40E_FCOE
-	/* create FCoE interface */
-	i40e_fcoe_vsi_setup(pf);
-
-#endif
 #define PCI_SPEED_SIZE 8
 #define PCI_WIDTH_SIZE 8
 	/* Devices on the IOSF bus do not have this information
diff --git a/drivers/net/ethernet/intel/i40e/i40e_osdep.h b/drivers/net/ethernet/intel/i40e/i40e_osdep.h
index fea81ed065db..80e66da6b145 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_osdep.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_osdep.h
@@ -78,7 +78,4 @@ do {								\
 } while (0)
 
 typedef enum i40e_status_code i40e_status;
-#ifdef CONFIG_I40E_FCOE
-#define I40E_FCOE
-#endif
 #endif /* _I40E_OSDEP_H_ */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_prototype.h b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
index 2551fc827444..dfc5e5901be5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_prototype.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
@@ -304,9 +304,6 @@ i40e_status i40e_read_pba_string(struct i40e_hw *hw, u8 *pba_num,
 				 u32 pba_num_size);
 i40e_status i40e_validate_mac_addr(u8 *mac_addr);
 void i40e_pre_tx_queue_cfg(struct i40e_hw *hw, u32 queue, bool enable);
-#ifdef I40E_FCOE
-i40e_status i40e_get_san_mac_addr(struct i40e_hw *hw, u8 *mac_addr);
-#endif
 /* prototype for functions used for NVM access */
 i40e_status i40e_init_nvm(struct i40e_hw *hw);
 i40e_status i40e_acquire_nvm(struct i40e_hw *hw,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index a40338fd0126..2ca8d13baea5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1062,11 +1062,6 @@ static void i40e_clean_programming_status(struct i40e_ring *rx_ring,
 
 	if (id == I40E_RX_PROG_STATUS_DESC_FD_FILTER_STATUS)
 		i40e_fd_handle_status(rx_ring, rx_desc, id);
-#ifdef I40E_FCOE
-	else if ((id == I40E_RX_PROG_STATUS_DESC_FCOE_CTXT_PROG_STATUS) ||
-		 (id == I40E_RX_PROG_STATUS_DESC_FCOE_CTXT_INVL_STATUS))
-		i40e_fcoe_handle_status(rx_ring, rx_desc, id);
-#endif
 }
 
 /**
@@ -1958,15 +1953,6 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
 		/* populate checksum, VLAN, and protocol */
 		i40e_process_skb_fields(rx_ring, rx_desc, skb, rx_ptype);
 
-#ifdef I40E_FCOE
-		if (unlikely(
-		    i40e_rx_is_fcoe(rx_ptype) &&
-		    !i40e_fcoe_handle_offload(rx_ring, rx_desc, skb))) {
-			dev_kfree_skb_any(skb);
-			continue;
-		}
-#endif
-
 		vlan_tag = (qword & BIT(I40E_RX_DESC_STATUS_L2TAG1P_SHIFT)) ?
 			   le16_to_cpu(rx_desc->wb.qword0.lo_dword.l2tag1) : 0;
 
@@ -2342,15 +2328,9 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
  * Returns error code indicate the frame should be dropped upon error and the
  * otherwise  returns 0 to indicate the flags has been set properly.
  **/
-#ifdef I40E_FCOE
-inline int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
-				      struct i40e_ring *tx_ring,
-				      u32 *flags)
-#else
 static inline int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
 					     struct i40e_ring *tx_ring,
 					     u32 *flags)
-#endif
 {
 	__be16 protocol = skb->protocol;
 	u32  tx_flags = 0;
@@ -2858,15 +2838,9 @@ bool __i40e_chk_linearize(struct sk_buff *skb)
  * @td_cmd:   the command field in the descriptor
  * @td_offset: offset for checksum or crc
  **/
-#ifdef I40E_FCOE
-inline void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
-			struct i40e_tx_buffer *first, u32 tx_flags,
-			const u8 hdr_len, u32 td_cmd, u32 td_offset)
-#else
 static inline void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
 			       struct i40e_tx_buffer *first, u32 tx_flags,
 			       const u8 hdr_len, u32 td_cmd, u32 td_offset)
-#endif
 {
 	unsigned int data_len = skb->data_len;
 	unsigned int size = skb_headlen(skb);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 77c3e96f5172..eb733726637f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -401,13 +401,6 @@ int i40e_setup_rx_descriptors(struct i40e_ring *rx_ring);
 void i40e_free_tx_resources(struct i40e_ring *tx_ring);
 void i40e_free_rx_resources(struct i40e_ring *rx_ring);
 int i40e_napi_poll(struct napi_struct *napi, int budget);
-#ifdef I40E_FCOE
-void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
-		 struct i40e_tx_buffer *first, u32 tx_flags,
-		 const u8 hdr_len, u32 td_cmd, u32 td_offset);
-int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
-			       struct i40e_ring *tx_ring, u32 *flags);
-#endif
 void i40e_force_wb(struct i40e_vsi *vsi, struct i40e_q_vector *q_vector);
 u32 i40e_get_tx_pending(struct i40e_ring *ring, bool in_sw);
 int __i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size);
@@ -491,16 +484,6 @@ static inline bool i40e_chk_linearize(struct sk_buff *skb, int count)
 }
 
 /**
- * i40e_rx_is_fcoe - returns true if the Rx packet type is FCoE
- * @ptype: the packet type field from Rx descriptor write-back
- **/
-static inline bool i40e_rx_is_fcoe(u16 ptype)
-{
-	return (ptype >= I40E_RX_PTYPE_L2_FCOE_PAY3) &&
-	       (ptype <= I40E_RX_PTYPE_L2_FCOE_VFT_FCOTHER);
-}
-
-/**
  * txring_txq - Find the netdev Tx ring based on the i40e Tx ring
  * @ring: Tx ring to find the netdev equivalent of
  **/
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 939f9fdc8f85..9200f2d9c752 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -1213,25 +1213,6 @@ struct i40e_veb_tc_stats {
 	u64 tc_tx_bytes[I40E_MAX_TRAFFIC_CLASS];
 };
 
-#ifdef I40E_FCOE
-/* Statistics collected per function for FCoE */
-struct i40e_fcoe_stats {
-	u64 rx_fcoe_packets;		/* fcoeprc */
-	u64 rx_fcoe_dwords;		/* focedwrc */
-	u64 rx_fcoe_dropped;		/* fcoerpdc */
-	u64 tx_fcoe_packets;		/* fcoeptc */
-	u64 tx_fcoe_dwords;		/* focedwtc */
-	u64 fcoe_bad_fccrc;		/* fcoecrc */
-	u64 fcoe_last_error;		/* fcoelast */
-	u64 fcoe_ddp_count;		/* fcoeddpc */
-};
-
-/* offset to per function FCoE statistics block */
-#define I40E_FCOE_VF_STAT_OFFSET	0
-#define I40E_FCOE_PF_STAT_OFFSET	128
-#define I40E_FCOE_STAT_MAX		(I40E_FCOE_PF_STAT_OFFSET + I40E_MAX_PF)
-
-#endif
 /* Statistics collected by the MAC */
 struct i40e_hw_port_stats {
 	/* eth stats collected by the port */
@@ -1319,125 +1300,6 @@ struct i40e_hw_port_stats {
 
 #define I40E_SRRD_SRCTL_ATTEMPTS	100000
 
-#ifdef I40E_FCOE
-/* FCoE Tx context descriptor - Use the i40e_tx_context_desc struct */
-
-enum i40E_fcoe_tx_ctx_desc_cmd_bits {
-	I40E_FCOE_TX_CTX_DESC_OPCODE_SINGLE_SEND	= 0x00, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_OPCODE_TSO_FC_CLASS2	= 0x01, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_OPCODE_TSO_FC_CLASS3	= 0x05, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_OPCODE_ETSO_FC_CLASS2	= 0x02, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_OPCODE_ETSO_FC_CLASS3	= 0x06, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_OPCODE_DWO_FC_CLASS2	= 0x03, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_OPCODE_DWO_FC_CLASS3	= 0x07, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_OPCODE_DDP_CTX_INVL	= 0x08, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_OPCODE_DWO_CTX_INVL	= 0x09, /* 4 BITS */
-	I40E_FCOE_TX_CTX_DESC_RELOFF			= 0x10,
-	I40E_FCOE_TX_CTX_DESC_CLRSEQ			= 0x20,
-	I40E_FCOE_TX_CTX_DESC_DIFENA			= 0x40,
-	I40E_FCOE_TX_CTX_DESC_IL2TAG2			= 0x80
-};
-
-/* FCoE DDP Context descriptor */
-struct i40e_fcoe_ddp_context_desc {
-	__le64 rsvd;
-	__le64 type_cmd_foff_lsize;
-};
-
-#define I40E_FCOE_DDP_CTX_QW1_DTYPE_SHIFT	0
-#define I40E_FCOE_DDP_CTX_QW1_DTYPE_MASK	(0xFULL << \
-					I40E_FCOE_DDP_CTX_QW1_DTYPE_SHIFT)
-
-#define I40E_FCOE_DDP_CTX_QW1_CMD_SHIFT	4
-#define I40E_FCOE_DDP_CTX_QW1_CMD_MASK	(0xFULL << \
-					 I40E_FCOE_DDP_CTX_QW1_CMD_SHIFT)
-
-enum i40e_fcoe_ddp_ctx_desc_cmd_bits {
-	I40E_FCOE_DDP_CTX_DESC_BSIZE_512B	= 0x00, /* 2 BITS */
-	I40E_FCOE_DDP_CTX_DESC_BSIZE_4K		= 0x01, /* 2 BITS */
-	I40E_FCOE_DDP_CTX_DESC_BSIZE_8K		= 0x02, /* 2 BITS */
-	I40E_FCOE_DDP_CTX_DESC_BSIZE_16K	= 0x03, /* 2 BITS */
-	I40E_FCOE_DDP_CTX_DESC_DIFENA		= 0x04, /* 1 BIT  */
-	I40E_FCOE_DDP_CTX_DESC_LASTSEQH		= 0x08, /* 1 BIT  */
-};
-
-#define I40E_FCOE_DDP_CTX_QW1_FOFF_SHIFT	16
-#define I40E_FCOE_DDP_CTX_QW1_FOFF_MASK	(0x3FFFULL << \
-					 I40E_FCOE_DDP_CTX_QW1_FOFF_SHIFT)
-
-#define I40E_FCOE_DDP_CTX_QW1_LSIZE_SHIFT	32
-#define I40E_FCOE_DDP_CTX_QW1_LSIZE_MASK	(0x3FFFULL << \
-					I40E_FCOE_DDP_CTX_QW1_LSIZE_SHIFT)
-
-/* FCoE DDP/DWO Queue Context descriptor */
-struct i40e_fcoe_queue_context_desc {
-	__le64 dmaindx_fbase;           /* 0:11 DMAINDX, 12:63 FBASE */
-	__le64 flen_tph;                /* 0:12 FLEN, 13:15 TPH */
-};
-
-#define I40E_FCOE_QUEUE_CTX_QW0_DMAINDX_SHIFT	0
-#define I40E_FCOE_QUEUE_CTX_QW0_DMAINDX_MASK	(0xFFFULL << \
-					I40E_FCOE_QUEUE_CTX_QW0_DMAINDX_SHIFT)
-
-#define I40E_FCOE_QUEUE_CTX_QW0_FBASE_SHIFT	12
-#define I40E_FCOE_QUEUE_CTX_QW0_FBASE_MASK	(0xFFFFFFFFFFFFFULL << \
-					I40E_FCOE_QUEUE_CTX_QW0_FBASE_SHIFT)
-
-#define I40E_FCOE_QUEUE_CTX_QW1_FLEN_SHIFT	0
-#define I40E_FCOE_QUEUE_CTX_QW1_FLEN_MASK	(0x1FFFULL << \
-					I40E_FCOE_QUEUE_CTX_QW1_FLEN_SHIFT)
-
-#define I40E_FCOE_QUEUE_CTX_QW1_TPH_SHIFT	13
-#define I40E_FCOE_QUEUE_CTX_QW1_TPH_MASK	(0x7ULL << \
-					I40E_FCOE_QUEUE_CTX_QW1_FLEN_SHIFT)
-
-enum i40e_fcoe_queue_ctx_desc_tph_bits {
-	I40E_FCOE_QUEUE_CTX_DESC_TPHRDESC	= 0x1,
-	I40E_FCOE_QUEUE_CTX_DESC_TPHDATA	= 0x2
-};
-
-#define I40E_FCOE_QUEUE_CTX_QW1_RECIPE_SHIFT	30
-#define I40E_FCOE_QUEUE_CTX_QW1_RECIPE_MASK	(0x3ULL << \
-					I40E_FCOE_QUEUE_CTX_QW1_RECIPE_SHIFT)
-
-/* FCoE DDP/DWO Filter Context descriptor */
-struct i40e_fcoe_filter_context_desc {
-	__le32 param;
-	__le16 seqn;
-
-	/* 48:51(0:3) RSVD, 52:63(4:15) DMAINDX */
-	__le16 rsvd_dmaindx;
-
-	/* 0:7 FLAGS, 8:52 RSVD, 53:63 LANQ */
-	__le64 flags_rsvd_lanq;
-};
-
-#define I40E_FCOE_FILTER_CTX_QW0_DMAINDX_SHIFT	4
-#define I40E_FCOE_FILTER_CTX_QW0_DMAINDX_MASK	(0xFFF << \
-					I40E_FCOE_FILTER_CTX_QW0_DMAINDX_SHIFT)
-
-enum i40e_fcoe_filter_ctx_desc_flags_bits {
-	I40E_FCOE_FILTER_CTX_DESC_CTYP_DDP	= 0x00,
-	I40E_FCOE_FILTER_CTX_DESC_CTYP_DWO	= 0x01,
-	I40E_FCOE_FILTER_CTX_DESC_ENODE_INIT	= 0x00,
-	I40E_FCOE_FILTER_CTX_DESC_ENODE_RSP	= 0x02,
-	I40E_FCOE_FILTER_CTX_DESC_FC_CLASS2	= 0x00,
-	I40E_FCOE_FILTER_CTX_DESC_FC_CLASS3	= 0x04
-};
-
-#define I40E_FCOE_FILTER_CTX_QW1_FLAGS_SHIFT	0
-#define I40E_FCOE_FILTER_CTX_QW1_FLAGS_MASK	(0xFFULL << \
-					I40E_FCOE_FILTER_CTX_QW1_FLAGS_SHIFT)
-
-#define I40E_FCOE_FILTER_CTX_QW1_PCTYPE_SHIFT     8
-#define I40E_FCOE_FILTER_CTX_QW1_PCTYPE_MASK      (0x3FULL << \
-			I40E_FCOE_FILTER_CTX_QW1_PCTYPE_SHIFT)
-
-#define I40E_FCOE_FILTER_CTX_QW1_LANQINDX_SHIFT     53
-#define I40E_FCOE_FILTER_CTX_QW1_LANQINDX_MASK      (0x7FFULL << \
-			I40E_FCOE_FILTER_CTX_QW1_LANQINDX_SHIFT)
-
-#endif /* I40E_FCOE */
 enum i40e_switch_element_types {
 	I40E_SWITCH_ELEMENT_TYPE_MAC	= 1,
 	I40E_SWITCH_ELEMENT_TYPE_PF	= 2,
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
index 7b41df1909be..fc959f964919 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
@@ -468,19 +468,7 @@ static inline bool i40e_chk_linearize(struct sk_buff *skb, int count)
 	/* we can support up to 8 data buffers for a single send */
 	return count != I40E_MAX_BUFFER_TXD;
 }
-
-/**
- * i40e_rx_is_fcoe - returns true if the Rx packet type is FCoE
- * @ptype: the packet type field from Rx descriptor write-back
- **/
-static inline bool i40e_rx_is_fcoe(u16 ptype)
-{
-	return (ptype >= I40E_RX_PTYPE_L2_FCOE_PAY3) &&
-	       (ptype <= I40E_RX_PTYPE_L2_FCOE_VFT_FCOTHER);
-}
-
 /**
- * txring_txq - Find the netdev Tx ring based on the i40e Tx ring
  * @ring: Tx ring to find the netdev equivalent of
  **/
 static inline struct netdev_queue *txring_txq(const struct i40e_ring *ring)
-- 
2.12.0

[net-next 09/11] i40e: Drop FCoE code that always evaluates to false or 0

[Jeff Kirsher]

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

Since FCoE isn't supported by the i40e products there isn't much point in
carrying around code that will always evaluate to false. This patch goes
through and strips out the code in several spots so that we don't go around
carrying variables and/or code that is always going to evaluate to false or
0.

Change-ID: I39d1d779c66c638b75525839db2b6208fdc809d7
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h             |  3 ---
 drivers/net/ethernet/intel/i40e/i40e_main.c        | 17 +++--------------
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h |  1 -
 3 files changed, 3 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index ee298adbb6db..d7e84f99eb2d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -502,9 +502,6 @@ struct i40e_pf {
 	 */
 	u16 dcbx_cap;
 
-	u32 fcoe_hmc_filt_num;
-	u32 fcoe_hmc_cntx_num;
-
 	struct i40e_filter_control_settings filter_settings;
 
 	struct ptp_clock *ptp_clock;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index f4258ec3a68c..781edfc86baf 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4371,14 +4371,6 @@ static void i40e_quiesce_vsi(struct i40e_vsi *vsi)
 	if (test_bit(__I40E_DOWN, &vsi->state))
 		return;
 
-	/* No need to disable FCoE VSI when Tx suspended */
-	if ((test_bit(__I40E_PORT_TX_SUSPENDED, &vsi->back->state)) &&
-	    vsi->type == I40E_VSI_FCOE) {
-		dev_dbg(&vsi->back->pdev->dev,
-			 "VSI seid %d skipping FCoE VSI disable\n", vsi->seid);
-		return;
-	}
-
 	set_bit(__I40E_NEEDS_RESTART, &vsi->state);
 	if (vsi->netdev && netif_running(vsi->netdev))
 		vsi->netdev->netdev_ops->ndo_stop(vsi->netdev);
@@ -4481,8 +4473,7 @@ static int i40e_pf_wait_queues_disabled(struct i40e_pf *pf)
 	int v, ret = 0;
 
 	for (v = 0; v < pf->hw.func_caps.num_vsis; v++) {
-		/* No need to wait for FCoE VSI queues */
-		if (pf->vsi[v] && pf->vsi[v]->type != I40E_VSI_FCOE) {
+		if (pf->vsi[v]) {
 			ret = i40e_vsi_wait_queues_disabled(pf->vsi[v]);
 			if (ret)
 				break;
@@ -6970,8 +6961,7 @@ static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit)
 		goto end_core_reset;
 
 	ret = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp,
-				hw->func_caps.num_rx_qp,
-				pf->fcoe_hmc_cntx_num, pf->fcoe_hmc_filt_num);
+				hw->func_caps.num_rx_qp, 0, 0);
 	if (ret) {
 		dev_info(&pf->pdev->dev, "init_lan_hmc failed: %d\n", ret);
 		goto end_core_reset;
@@ -11016,8 +11006,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	err = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp,
-				hw->func_caps.num_rx_qp,
-				pf->fcoe_hmc_cntx_num, pf->fcoe_hmc_filt_num);
+				hw->func_caps.num_rx_qp, 0, 0);
 	if (err) {
 		dev_info(&pdev->dev, "init_lan_hmc failed: %d\n", err);
 		goto err_init_lan_hmc;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
index 4012d069939a..37af437daa5d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
@@ -87,7 +87,6 @@ struct i40e_vf {
 	u16 stag;
 
 	struct i40e_virtchnl_ether_addr default_lan_addr;
-	struct i40e_virtchnl_ether_addr default_fcoe_addr;
 	u16 port_vlan_id;
 	bool pf_set_mac;	/* The VMM admin set the VF MAC address */
 	bool trusted;
-- 
2.12.0

[net-next 10/11] i40evf: dereference VSI after VSI has been null checked

[Jeff Kirsher]

From: Colin Ian King <colin.king@canonical.com>

VSI is being dereferenced before the VSI null check; if VSI is
null we end up with a null pointer dereference.  Fix this by
performing VSI deference after the VSI null check.  Also remove
the need for using adapter by using vsi->back->cinst.

Detected by CoverityScan, CID#1419696, CID#1419697
("Dereference before null check")

Fixes: ed0e894de7c133 ("i40evf: add client interface")
Signed-off-by: Colin Ian King <colin.king@canonical.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_client.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_client.c b/drivers/net/ethernet/intel/i40evf/i40evf_client.c
index 5b43e5b6e2eb..ee737680a0e9 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_client.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_client.c
@@ -34,12 +34,12 @@ static struct i40e_ops i40evf_lan_ops = {
  **/
 void i40evf_notify_client_message(struct i40e_vsi *vsi, u8 *msg, u16 len)
 {
-	struct i40evf_adapter *adapter = vsi->back;
-	struct i40e_client_instance *cinst = adapter->cinst;
+	struct i40e_client_instance *cinst;
 
 	if (!vsi)
 		return;
 
+	cinst = vsi->back->cinst;
 	if (!cinst || !cinst->client || !cinst->client->ops ||
 	    !cinst->client->ops->virtchnl_receive) {
 		dev_dbg(&vsi->back->pdev->dev,
@@ -58,12 +58,13 @@ void i40evf_notify_client_message(struct i40e_vsi *vsi, u8 *msg, u16 len)
  **/
 void i40evf_notify_client_l2_params(struct i40e_vsi *vsi)
 {
-	struct i40evf_adapter *adapter = vsi->back;
-	struct i40e_client_instance *cinst = adapter->cinst;
+	struct i40e_client_instance *cinst;
 	struct i40e_params params;
 
 	if (!vsi)
 		return;
+
+	cinst = vsi->back->cinst;
 	memset(&params, 0, sizeof(params));
 	params.mtu = vsi->netdev->mtu;
 	params.link_up = vsi->back->link_up;
-- 
2.12.0

[net-next 11/11] i40e: initialize params before notifying of l2_param_changes

[Jeff Kirsher]

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

Probably due to some mis-merging fix a bug associated with commits
d7ce6422d6e6 ("i40e: don't check params until after checking for client
instance", 2017-02-09) and 3140aa9a78c9 ("i40e: KISS the client
interface", 2017-03-14)

The first commit tried to move the initialization of the params
structure so that we didn't bother doing this if we didn't have a client
interface. You can already see that it looks fishy because of the
indentation. The second commit refactors a bunch of the interface, and
incorrectly drops the params initialization.

I believe what occurred is that internally the two patches were
re-ordered, and the merge conflicts as a result were performed
incorrectly.

Fix the use of an uninitialized variable by correctly initializing the
params variable via i40e_client_get_params().

Reported-by: Colin Ian King <colin.king@canonical.com>
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_client.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_client.c b/drivers/net/ethernet/intel/i40e/i40e_client.c
index a9f0d22a7cf4..191028b1489b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_client.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_client.c
@@ -147,6 +147,8 @@ void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi)
 		dev_dbg(&vsi->back->pdev->dev, "Client is not open, abort l2 param change\n");
 		return;
 	}
+	memset(&params, 0, sizeof(params));
+	i40e_client_get_params(vsi, &params);
 	memcpy(&cdev->lan_info.params, &params, sizeof(struct i40e_params));
 	cdev->client->ops->l2_param_change(&cdev->lan_info, cdev->client,
 					   &params);
-- 
2.12.0

Re: [net-next 05/11] i40e: fix for queue timing delays

[Sergei Shtylyov]

On 3/25/2017 11:12 AM, Jeff Kirsher wrote:

> From: Carolyn Wyborny <carolyn.wyborny@intel.com>
>
> This patch adds a delay to Rx queue disables to accommodate HW needs.
>
> Change-ID: I2864ca667ce5dcc2cc44f8718113b719742a46a1
> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
> Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_main.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
> index 5da990909a88..1435033faefe 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_main.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
> @@ -4181,6 +4181,8 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable)
>  		}
>  	}
>
> +	/* HW needs up to 50ms to finish RX queue disable*/

    Please add a space before */.

> +	mdelay(50);

    Ugh...

>  	return ret;
>  }

MBR, Sergei

Re: [net-next 05/11] i40e: fix for queue timing delays

[David Miller]

From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Sat, 25 Mar 2017 01:12:59 -0700

> From: Carolyn Wyborny <carolyn.wyborny@intel.com>
> 
> This patch adds a delay to Rx queue disables to accommodate HW needs.
> 
> Change-ID: I2864ca667ce5dcc2cc44f8718113b719742a46a1
> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
> Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_main.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
> index 5da990909a88..1435033faefe 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_main.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
> @@ -4181,6 +4181,8 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable)
>  		}
>  	}
>  
> +	/* HW needs up to 50ms to finish RX queue disable*/
> +	mdelay(50);

You just polled a register which indicates that the request is finished.
Needing futher time for the operation to complete doesn't make any
sense.

If this is really needed, you need to explain in the commit message, in
detail, what is really the problem here.

THanks.

RE: [net-next 05/11] i40e: fix for queue timing delays

[Wyborny, Carolyn]

> -----Original Message-----
> From: David Miller [mailto:davem@davemloft.net]
> Sent: Saturday, March 25, 2017 8:01 PM
> To: Kirsher, Jeffrey T <jeffrey.t.kirsher@intel.com>
> Cc: Wyborny, Carolyn <carolyn.wyborny@intel.com>;
> netdev@vger.kernel.org; nhorman@redhat.com; sassmann@redhat.com;
> jogreene@redhat.com
> Subject: Re: [net-next 05/11] i40e: fix for queue timing delays
> 
> From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> Date: Sat, 25 Mar 2017 01:12:59 -0700
> 
> > From: Carolyn Wyborny <carolyn.wyborny@intel.com>
> >
> > This patch adds a delay to Rx queue disables to accommodate HW needs.
> >
[..]
> > +	/* HW needs up to 50ms to finish RX queue disable*/
> > +	mdelay(50);
> 
> You just polled a register which indicates that the request is finished.
> Needing futher time for the operation to complete doesn't make any
> sense.
> 
> If this is really needed, you need to explain in the commit message, in
> detail, what is really the problem here.
> 
> THanks.

It's a hw limitation, will submit an updated patch with more detail.

Thanks,

Carolyn

Carolyn Wyborny 
Linux Development 
Networking Division 
Intel Corporation 

Re: [net-next 00/11][pull request] 40GbE Intel Wired LAN Driver Updates 2017-03-25

[Jeff Kirsher]

[-- Attachment #1: Type: text/plain, Size: 4186 bytes --]

On Sat, 2017-03-25 at 01:12 -0700, Jeff Kirsher wrote:
> This series contains updates to i40e and i40evf only.
> 
> Alex updates the driver code so that we can do bulk updates of the
> page
> reference count instead of just incrementing it by one reference at a
> time.  Fixed an issue where we were not resetting skb back to NULL
> when
> we have freed it.  Cleaned up the i40e_process_skb_fields() to align
> with
> other Intel drivers.  Removed FCoE code, since it is not supported in
> any
> of the Fortville/Fortpark hardware, so there is not much point of
> carrying
> the code around, especially if it is broken and untested.
> 
> Harshitha fixes a bug in the driver where the calculation of the RSS
> size
> was not taking into account the number of traffic classes enabled.
> 
> Robert fixes a potential race condition during VF reset by
> eliminating
> IOMMU DMAR Faults caused by VF hardware and when the OS initiates a
> VF
> reset and before the reset is finished we modify the VF's settings.
> 
> Carolyn adds a needed delay to accommodate the hardware needs.
> 
> Bimmy removes a delay that is no longer needed, since it was only
> needed
> for preproduction hardware.
> 
> Colin King fixes null pointer dereference, where VSI was being
> dereferenced before the VSI NULL check.
> 
> Jake fixes an issue with the recent addition of the "client code" to
> the
> driver, where we attempt to use an uninitialized variable, so
> correctly
> initialize the params variable by calling i40e_client_get_params().

I will re-spin the series without Carolyn's patch, while she works on
the patch to update the documentation/explanation on her change.

> 
> The following are changes since commit
> 2239cc634395ecce69dd047be9104f71edc417b4:
>   Merge branch 'epoll-busypoll'
> and are available in the git repository at:
>   git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
> 40GbE
> 
> Alexander Duyck (5):
>   i40e/i40evf: Update code to better handle incrementing page count
>   i40e/i40evf: Fix use after free in Rx cleanup path
>   i40e/i40evf: Clean-up process_skb_fields
>   i40e: Drop FCoE code from core driver files
>   i40e: Drop FCoE code that always evaluates to false or 0
> 
> Bimmy Pujari (1):
>   i40e: removed no longer needed delays
> 
> Carolyn Wyborny (1):
>   i40e: fix for queue timing delays
> 
> Colin Ian King (1):
>   i40evf: dereference VSI after VSI has been null checked
> 
> Harshitha Ramamurthy (1):
>   i40e: fix configuration of RSS table with DCB
> 
> Jacob Keller (1):
>   i40e: initialize params before notifying of l2_param_changes
> 
> Robert Konklewski (1):
>   i40e: Fixed race conditions in VF reset
> 
>  drivers/net/ethernet/intel/Kconfig                 |  11 -
>  drivers/net/ethernet/intel/i40e/Makefile           |   1 -
>  drivers/net/ethernet/intel/i40e/i40e.h             |  62 -----
>  drivers/net/ethernet/intel/i40e/i40e_client.c      |   2 +
>  drivers/net/ethernet/intel/i40e/i40e_common.c      |  27 --
>  drivers/net/ethernet/intel/i40e/i40e_debugfs.c     |  19 --
>  drivers/net/ethernet/intel/i40e/i40e_ethtool.c     |  35 ---
>  drivers/net/ethernet/intel/i40e/i40e_main.c        | 297 ++---------
> ----------
>  drivers/net/ethernet/intel/i40e/i40e_osdep.h       |   3 -
>  drivers/net/ethernet/intel/i40e/i40e_prototype.h   |   3 -
>  drivers/net/ethernet/intel/i40e/i40e_txrx.c        |  60 ++---
>  drivers/net/ethernet/intel/i40e/i40e_txrx.h        |  24 +-
>  drivers/net/ethernet/intel/i40e/i40e_type.h        | 138 ----------
>  drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  43 ++-
>  drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h |   1 -
>  drivers/net/ethernet/intel/i40evf/i40e_txrx.c      |  33 ++-
>  drivers/net/ethernet/intel/i40evf/i40e_txrx.h      |  19 +-
>  drivers/net/ethernet/intel/i40evf/i40evf_client.c  |   9 +-
>  18 files changed, 114 insertions(+), 673 deletions(-)
> 

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