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* [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates
@ 2014-01-11  0:47 Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 01/17] i40e: use assignment instead of memcpy Jeff Kirsher
                   ` (17 more replies)
  0 siblings, 18 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem; +Cc: Jeff Kirsher, netdev, gospo, sassmann

This series contains updates to i40e and now i40evf.

Most notable is Jacob's patch to add PTP support to i40e.
  
Mitch cleans up additional memcpy's and use struct assignment instead.
Then fixes long lines to appease checkpatch.pl.  Mitch then provides
a fix to keep us from spamming the log with confusing errors.  If you
use ip to change the MAC address of a VF while the VF driver is loaded,
closing the VF interface or unloading the VF driver will cause the VF
driver to remove the MAC filter for its original (now invalid) MAC
address.

Jesse cleans up macros which are no longer needed or used.

I (Jeff) cleanup function header comments to ensure Doxygen/kdoc works
correctly to generate documentation without warnings.

Anjali fixes a bug where ethtool set-channels would return failure when
configuring only one Rx queue.  Then fixes a bug where the driver was
erroneously exiting the driver unload path if one part of the unload
failed.

Shannon fixes if the IPV6EXADD but is set in the Rx descriptor status,
there was an optional extension header with an alternate IP address
detected and the hardware checksum was not handling the alternate IP
address correctly.  Then adjusts the ITR max and min values to match
the hardware max value and recommended min value.  Shannon makes sure
to clear the PXE mode after the adminq is initialized.

v2:
 - fix patch 14 "i40e: enable PTP" to address Richard Cochran's spelling
   catch and Ben Hutchings Kconfig, SIOCGHWTSTAMP and sizeof() suggestions
 - added Paul Gortmaker's i40evf fix patch
v3:
 - fix patch 14 "i40e: enable PTP" to address Ben Hutchings concerns about
   a race with PTP init and cleanup and i40e_get_ts_info().

The following are changes since commit 11b57f90257c1d6a91cee720151b69e0c2020cf6:
  xen-netback: stop vif thread spinning if frontend is unresponsive
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next master

Anjali Singhai Jain (3):
  i40e: Update the Current NVM version Low value
  i40e: Setting queue count to 1 using ethtool is valid
  i40e: do not bail when disabling if Tx queue disable fails

Catherine Sullivan (2):
  i40e: Bump version
  i40e: Bump version

Jacob Keller (1):
  i40e: enable PTP

Jeff Kirsher (1):
  i40e: Cleanup Doxygen warnings

Jesse Brandeburg (1):
  i40e: drop unused macros

Mitch Williams (3):
  i40e: use assignment instead of memcpy
  i40e: fix long lines
  i40e: allow VF to remove any MAC filter

Paul Gortmaker (1):
  i40evf: fix s390 build failure due to implicit prefetch.h

Shannon Nelson (5):
  i40e: check for possible incorrect ipv6 checksum
  i40e: adjust ITR max and min values
  i40e: clear qtx_head before enabling Tx queue
  i40e: call clear_pxe after adminq is initialized
  i40e: fix log message wording

 drivers/net/ethernet/intel/Kconfig                 |   1 +
 drivers/net/ethernet/intel/i40e/Makefile           |   1 +
 drivers/net/ethernet/intel/i40e/i40e.h             |  28 +-
 drivers/net/ethernet/intel/i40e/i40e_adminq.c      |  28 +-
 drivers/net/ethernet/intel/i40e/i40e_common.c      |  23 +-
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c     |   2 +-
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c     |  35 +-
 drivers/net/ethernet/intel/i40e/i40e_hmc.c         |   8 +-
 drivers/net/ethernet/intel/i40e/i40e_hmc.h         |   3 -
 drivers/net/ethernet/intel/i40e/i40e_main.c        |  65 +-
 drivers/net/ethernet/intel/i40e/i40e_nvm.c         |   1 +
 drivers/net/ethernet/intel/i40e/i40e_prototype.h   |   4 +-
 drivers/net/ethernet/intel/i40e/i40e_ptp.c         | 662 +++++++++++++++++++++
 drivers/net/ethernet/intel/i40e/i40e_txrx.c        |  57 ++
 drivers/net/ethernet/intel/i40e/i40e_txrx.h        |   8 +-
 drivers/net/ethernet/intel/i40e/i40e_type.h        |  13 +-
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |   8 +-
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c      |   2 +
 18 files changed, 887 insertions(+), 62 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/i40e/i40e_ptp.c

-- 
1.8.3.1

^ permalink raw reply	[flat|nested] 19+ messages in thread
* [net-next v3 01/17] i40e: use assignment instead of memcpy
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 02/17] i40e: drop unused macros Jeff Kirsher
                   ` (16 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Mitch Williams, netdev, gospo, sassmann, Jesse Brandeburg, Jeff Kirsher

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

These instances were found by coccinelle/spatch, and can
use struct assignment instead of memcpy.

Change-ID: Idc23c3599241bf8a658bda18c80417af3fbfee66
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_adminq.c | 2 +-
 drivers/net/ethernet/intel/i40e/i40e_common.c | 3 +--
 drivers/net/ethernet/intel/i40e/i40e_hmc.c    | 8 +++-----
 3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index c75aa2d..4e5a02c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -922,7 +922,7 @@ i40e_status i40e_clean_arq_element(struct i40e_hw *hw,
 			   "AQRX: Event received with error 0x%X.\n",
 			   hw->aq.arq_last_status);
 	} else {
-		memcpy(&e->desc, desc, sizeof(struct i40e_aq_desc));
+		e->desc = *desc;
 		datalen = le16_to_cpu(desc->datalen);
 		e->msg_size = min(datalen, e->msg_size);
 		if (e->msg_buf != NULL && (e->msg_size != 0))
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 807312b..6bfbeec 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -599,8 +599,7 @@ i40e_status i40e_aq_get_link_info(struct i40e_hw *hw,
 		goto aq_get_link_info_exit;
 
 	/* save off old link status information */
-	memcpy(&hw->phy.link_info_old, hw_link_info,
-	       sizeof(struct i40e_link_status));
+	hw->phy.link_info_old = *hw_link_info;
 
 	/* update link status */
 	hw_link_info->phy_type = (enum i40e_aq_phy_type)resp->phy_type;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_hmc.c b/drivers/net/ethernet/intel/i40e/i40e_hmc.c
index 76dfef3..bf2d4cc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_hmc.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_hmc.c
@@ -89,11 +89,9 @@ i40e_status i40e_add_sd_table_entry(struct i40e_hw *hw,
 			sd_entry->u.pd_table.pd_entry =
 				(struct i40e_hmc_pd_entry *)
 				sd_entry->u.pd_table.pd_entry_virt_mem.va;
-			memcpy(&sd_entry->u.pd_table.pd_page_addr, &mem,
-			       sizeof(struct i40e_dma_mem));
+			sd_entry->u.pd_table.pd_page_addr = mem;
 		} else {
-			memcpy(&sd_entry->u.bp.addr, &mem,
-			       sizeof(struct i40e_dma_mem));
+			sd_entry->u.bp.addr = mem;
 			sd_entry->u.bp.sd_pd_index = sd_index;
 		}
 		/* initialize the sd entry */
@@ -164,7 +162,7 @@ i40e_status i40e_add_pd_table_entry(struct i40e_hw *hw,
 		if (ret_code)
 			goto exit;
 
-		memcpy(&pd_entry->bp.addr, &mem, sizeof(struct i40e_dma_mem));
+		pd_entry->bp.addr = mem;
 		pd_entry->bp.sd_pd_index = pd_index;
 		pd_entry->bp.entry_type = I40E_SD_TYPE_PAGED;
 		/* Set page address and valid bit */
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 02/17] i40e: drop unused macros
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 01/17] i40e: use assignment instead of memcpy Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 03/17] i40e: Update the Current NVM version Low value Jeff Kirsher
                   ` (15 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem; +Cc: Jesse Brandeburg, netdev, gospo, sassmann, Jeff Kirsher

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

A previous commit removed any need for these macros, so remove
them too.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_type.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 12473ad..072c850 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -60,15 +60,6 @@
 /* Max default timeout in ms, */
 #define I40E_MAX_NVM_TIMEOUT		18000
 
-/* Check whether address is multicast.  This is little-endian specific check.*/
-#define I40E_IS_MULTICAST(address)	\
-	(bool)(((u8 *)(address))[0] & ((u8)0x01))
-
-/* Check whether an address is broadcast. */
-#define I40E_IS_BROADCAST(address)	\
-	((((u8 *)(address))[0] == ((u8)0xff)) && \
-	(((u8 *)(address))[1] == ((u8)0xff)))
-
 /* Switch from mc to the 2usec global time (this is the GTIME resolution) */
 #define I40E_MS_TO_GTIME(time)		(((time) * 1000) / 2)
 
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 03/17] i40e: Update the Current NVM version Low value
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 01/17] i40e: use assignment instead of memcpy Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 02/17] i40e: drop unused macros Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 04/17] i40e: Bump version Jeff Kirsher
                   ` (14 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Anjali Singhai Jain, netdev, gospo, sassmann, Jesse Brandeburg,
	Jeff Kirsher

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

The current driver will warn the user if the NVM version
is out of date, this raises the bar to a newer version.

Change-ID: I5ec21d8efa4e7c3fdacb56f85d310bb2229b1483
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 4d4cdbf..7dab660 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -88,7 +88,7 @@
 
 /* The values in here are decimal coded as hex as is the case in the NVM map*/
 #define I40E_CURRENT_NVM_VERSION_HI 0x2
-#define I40E_CURRENT_NVM_VERSION_LO 0x1
+#define I40E_CURRENT_NVM_VERSION_LO 0x30
 
 
 /* magic for getting defines into strings */
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 04/17] i40e: Bump version
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (2 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 03/17] i40e: Update the Current NVM version Low value Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 05/17] i40e: fix long lines Jeff Kirsher
                   ` (13 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Catherine Sullivan, netdev, gospo, sassmann, Jesse Brandeburg,
	Jeff Kirsher

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

Update driver version to 0.3.27-k

Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 1b792ee..80c83eb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -38,7 +38,7 @@ static const char i40e_driver_string[] =
 
 #define DRV_VERSION_MAJOR 0
 #define DRV_VERSION_MINOR 3
-#define DRV_VERSION_BUILD 25
+#define DRV_VERSION_BUILD 27
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 05/17] i40e: fix long lines
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (3 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 04/17] i40e: Bump version Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 06/17] i40e: Cleanup Doxygen warnings Jeff Kirsher
                   ` (12 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Mitch Williams, netdev, gospo, sassmann, Jesse Brandeburg, Jeff Kirsher

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

Avoid over-length lines in order to appease checkpatch.

Change-ID: I63820a710acf798f49d2f85c610228711af84f72
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c    | 3 ++-
 drivers/net/ethernet/intel/i40e/i40e_prototype.h | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 6bfbeec..1bf0ec1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -681,7 +681,8 @@ aq_add_vsi_exit:
  * @cmd_details: pointer to command details structure or NULL
  **/
 i40e_status i40e_aq_set_vsi_unicast_promiscuous(struct i40e_hw *hw,
-				u16 seid, bool set, struct i40e_asq_cmd_details *cmd_details)
+				u16 seid, bool set,
+				struct i40e_asq_cmd_details *cmd_details)
 {
 	struct i40e_aq_desc desc;
 	struct i40e_aqc_set_vsi_promiscuous_modes *cmd =
diff --git a/drivers/net/ethernet/intel/i40e/i40e_prototype.h b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
index c7c3d82..f8c53a6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_prototype.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
@@ -93,9 +93,9 @@ i40e_status i40e_aq_set_vsi_broadcast(struct i40e_hw *hw,
 				u16 vsi_id, bool set_filter,
 				struct i40e_asq_cmd_details *cmd_details);
 i40e_status i40e_aq_set_vsi_unicast_promiscuous(struct i40e_hw *hw,
-				u16 vsi_id, bool set, struct i40e_asq_cmd_details *cmd_details);
+		u16 vsi_id, bool set, struct i40e_asq_cmd_details *cmd_details);
 i40e_status i40e_aq_set_vsi_multicast_promiscuous(struct i40e_hw *hw,
-				u16 vsi_id, bool set, struct i40e_asq_cmd_details *cmd_details);
+		u16 vsi_id, bool set, struct i40e_asq_cmd_details *cmd_details);
 i40e_status i40e_aq_get_vsi_params(struct i40e_hw *hw,
 				struct i40e_vsi_context *vsi_ctx,
 				struct i40e_asq_cmd_details *cmd_details);
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 06/17] i40e: Cleanup Doxygen warnings
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (4 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 05/17] i40e: fix long lines Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 07/17] i40e: Setting queue count to 1 using ethtool is valid Jeff Kirsher
                   ` (11 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem; +Cc: Jeff Kirsher, netdev, gospo, sassmann, Jesse Brandeburg

These changes make Doxygen/kdoc work correctly without warnings.

Change-ID: I2941f38860be805ff7548d84dae35754c83f1d62
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_adminq.c | 26 +++++++++++++-------------
 drivers/net/ethernet/intel/i40e/i40e_common.c | 17 ++++++++++-------
 drivers/net/ethernet/intel/i40e/i40e_hmc.h    |  3 ---
 drivers/net/ethernet/intel/i40e/i40e_nvm.c    |  1 +
 4 files changed, 24 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index 4e5a02c..a50e6b3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -128,7 +128,7 @@ static void i40e_free_adminq_arq(struct i40e_hw *hw)
 
 /**
  *  i40e_alloc_arq_bufs - Allocate pre-posted buffers for the receive queue
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  **/
 static i40e_status i40e_alloc_arq_bufs(struct i40e_hw *hw)
 {
@@ -195,7 +195,7 @@ unwind_alloc_arq_bufs:
 
 /**
  *  i40e_alloc_asq_bufs - Allocate empty buffer structs for the send queue
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  **/
 static i40e_status i40e_alloc_asq_bufs(struct i40e_hw *hw)
 {
@@ -235,7 +235,7 @@ unwind_alloc_asq_bufs:
 
 /**
  *  i40e_free_arq_bufs - Free receive queue buffer info elements
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  **/
 static void i40e_free_arq_bufs(struct i40e_hw *hw)
 {
@@ -254,7 +254,7 @@ static void i40e_free_arq_bufs(struct i40e_hw *hw)
 
 /**
  *  i40e_free_asq_bufs - Free send queue buffer info elements
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  **/
 static void i40e_free_asq_bufs(struct i40e_hw *hw)
 {
@@ -277,7 +277,7 @@ static void i40e_free_asq_bufs(struct i40e_hw *hw)
 
 /**
  *  i40e_config_asq_regs - configure ASQ registers
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  *
  *  Configure base address and length registers for the transmit queue
  **/
@@ -304,7 +304,7 @@ static void i40e_config_asq_regs(struct i40e_hw *hw)
 
 /**
  *  i40e_config_arq_regs - ARQ register configuration
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  *
  * Configure base address and length registers for the receive (event queue)
  **/
@@ -334,7 +334,7 @@ static void i40e_config_arq_regs(struct i40e_hw *hw)
 
 /**
  *  i40e_init_asq - main initialization routine for ASQ
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  *
  *  This is the main initialization routine for the Admin Send Queue
  *  Prior to calling this function, drivers *MUST* set the following fields
@@ -391,7 +391,7 @@ init_adminq_exit:
 
 /**
  *  i40e_init_arq - initialize ARQ
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  *
  *  The main initialization routine for the Admin Receive (Event) Queue.
  *  Prior to calling this function, drivers *MUST* set the following fields
@@ -448,7 +448,7 @@ init_adminq_exit:
 
 /**
  *  i40e_shutdown_asq - shutdown the ASQ
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  *
  *  The main shutdown routine for the Admin Send Queue
  **/
@@ -479,7 +479,7 @@ static i40e_status i40e_shutdown_asq(struct i40e_hw *hw)
 
 /**
  *  i40e_shutdown_arq - shutdown ARQ
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  *
  *  The main shutdown routine for the Admin Receive Queue
  **/
@@ -510,7 +510,7 @@ static i40e_status i40e_shutdown_arq(struct i40e_hw *hw)
 
 /**
  *  i40e_init_adminq - main initialization routine for Admin Queue
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  *
  *  Prior to calling this function, drivers *MUST* set the following fields
  *  in the hw->aq structure:
@@ -607,7 +607,7 @@ init_adminq_exit:
 
 /**
  *  i40e_shutdown_adminq - shutdown routine for the Admin Queue
- *  @hw:     pointer to the hardware structure
+ *  @hw: pointer to the hardware structure
  **/
 i40e_status i40e_shutdown_adminq(struct i40e_hw *hw)
 {
@@ -626,7 +626,7 @@ i40e_status i40e_shutdown_adminq(struct i40e_hw *hw)
 
 /**
  *  i40e_clean_asq - cleans Admin send queue
- *  @asq: pointer to the adminq send ring
+ *  @hw: pointer to the hardware structure
  *
  *  returns the number of free desc
  **/
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 1bf0ec1..0b5a75c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -74,7 +74,8 @@ static i40e_status i40e_set_mac_type(struct i40e_hw *hw)
 /**
  * i40e_debug_aq
  * @hw: debug mask related to admin queue
- * @cap: pointer to adminq command descriptor
+ * @mask: debug mask
+ * @desc: pointer to admin queue descriptor
  * @buffer: pointer to command buffer
  *
  * Dumps debug log about adminq command with descriptor contents.
@@ -629,7 +630,7 @@ aq_get_link_info_exit:
 /**
  * i40e_aq_add_vsi
  * @hw: pointer to the hw struct
- * @vsi: pointer to a vsi context struct
+ * @vsi_ctx: pointer to a vsi context struct
  * @cmd_details: pointer to command details structure or NULL
  *
  * Add a VSI context to the hardware.
@@ -776,7 +777,7 @@ i40e_status i40e_aq_set_vsi_broadcast(struct i40e_hw *hw,
 /**
  * i40e_get_vsi_params - get VSI configuration info
  * @hw: pointer to the hw struct
- * @vsi: pointer to a vsi context struct
+ * @vsi_ctx: pointer to a vsi context struct
  * @cmd_details: pointer to command details structure or NULL
  **/
 i40e_status i40e_aq_get_vsi_params(struct i40e_hw *hw,
@@ -818,7 +819,7 @@ aq_get_vsi_params_exit:
 /**
  * i40e_aq_update_vsi_params
  * @hw: pointer to the hw struct
- * @vsi: pointer to a vsi context struct
+ * @vsi_ctx: pointer to a vsi context struct
  * @cmd_details: pointer to command details structure or NULL
  *
  * Update a VSI context.
@@ -921,7 +922,6 @@ i40e_status i40e_aq_get_firmware_version(struct i40e_hw *hw,
 /**
  * i40e_aq_send_driver_version
  * @hw: pointer to the hw struct
- * @event: driver event: driver ok, start or stop
  * @dv: driver's major, minor version
  * @cmd_details: pointer to command details structure or NULL
  *
@@ -1039,10 +1039,10 @@ i40e_status i40e_aq_add_veb(struct i40e_hw *hw, u16 uplink_seid,
  * @hw: pointer to the hw struct
  * @veb_seid: the SEID of the VEB to query
  * @switch_id: the uplink switch id
- * @floating_veb: set to true if the VEB is floating
+ * @floating: set to true if the VEB is floating
  * @statistic_index: index of the stats counter block for this VEB
  * @vebs_used: number of VEB's used by function
- * @vebs_unallocated: total VEB's not reserved by any function
+ * @vebs_free: total VEB's not reserved by any function
  * @cmd_details: pointer to command details structure or NULL
  *
  * This retrieves the parameters for a particular VEB, specified by
@@ -1179,6 +1179,8 @@ i40e_status i40e_aq_remove_macvlan(struct i40e_hw *hw, u16 seid,
  * i40e_aq_send_msg_to_vf
  * @hw: pointer to the hardware structure
  * @vfid: vf id to send msg
+ * @v_opcode: opcodes for VF-PF communication
+ * @v_retval: return error code
  * @msg: pointer to the msg buffer
  * @msglen: msg length
  * @cmd_details: pointer to command details
@@ -1723,6 +1725,7 @@ i40e_status i40e_aq_start_lldp(struct i40e_hw *hw,
  * @udp_port: the UDP port to add
  * @header_len: length of the tunneling header length in DWords
  * @protocol_index: protocol index type
+ * @filter_index: pointer to filter index
  * @cmd_details: pointer to command details structure or NULL
  **/
 i40e_status i40e_aq_add_udp_tunnel(struct i40e_hw *hw,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_hmc.h b/drivers/net/ethernet/intel/i40e/i40e_hmc.h
index 72bf30a..0cd4701 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_hmc.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_hmc.h
@@ -116,7 +116,6 @@ struct i40e_hmc_info {
  * @hw: pointer to our hw struct
  * @pa: pointer to physical address
  * @sd_index: segment descriptor index
- * @hmc_fn_id: hmc function id
  * @type: if sd entry is direct or paged
  **/
 #define I40E_SET_PF_SD_ENTRY(hw, pa, sd_index, type)			\
@@ -138,7 +137,6 @@ struct i40e_hmc_info {
  * I40E_CLEAR_PF_SD_ENTRY - marks the sd entry as invalid in the hardware
  * @hw: pointer to our hw struct
  * @sd_index: segment descriptor index
- * @hmc_fn_id: hmc function id
  * @type: if sd entry is direct or paged
  **/
 #define I40E_CLEAR_PF_SD_ENTRY(hw, sd_index, type)			\
@@ -159,7 +157,6 @@ struct i40e_hmc_info {
  * @hw: pointer to our hw struct
  * @sd_idx: segment descriptor index
  * @pd_idx: page descriptor index
- * @hmc_fn_id: hmc function id
  **/
 #define I40E_INVALIDATE_PF_HMC_PD(hw, sd_idx, pd_idx)			\
 	wr32((hw), I40E_PFHMC_PDINV,					\
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 37d66c8..e12bf07 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -244,6 +244,7 @@ i40e_status i40e_read_nvm_buffer(struct i40e_hw *hw, u16 offset,
 /**
  *  i40e_calc_nvm_checksum - Calculates and returns the checksum
  *  @hw: pointer to hardware structure
+ *  @checksum: pointer to the checksum
  *
  *  This function calculate SW Checksum that covers the whole 64kB shadow RAM
  *  except the VPD and PCIe ALT Auto-load modules. The structure and size of VPD
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 07/17] i40e: Setting queue count to 1 using ethtool is valid
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (5 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 06/17] i40e: Cleanup Doxygen warnings Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 08/17] i40e: do not bail when disabling if Tx queue disable fails Jeff Kirsher
                   ` (10 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Anjali Singhai Jain, netdev, gospo, sassmann, Jesse Brandeburg,
	Jeff Kirsher

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

Fix a bug where ethtool set-channels would return failure when configuring
only one Rx queue.

Change-ID: Id833c48c17d71e352b30f3249f6acf9e7aaec57e
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index b886ee5..342a6e1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1634,7 +1634,7 @@ static int i40e_set_channels(struct net_device *dev,
 	 * class queue mapping
 	 */
 	new_count = i40e_reconfig_rss_queues(pf, count);
-	if (new_count > 1)
+	if (new_count > 0)
 		return 0;
 	else
 		return -EINVAL;
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 08/17] i40e: do not bail when disabling if Tx queue disable fails
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (6 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 07/17] i40e: Setting queue count to 1 using ethtool is valid Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 09/17] i40e: allow VF to remove any MAC filter Jeff Kirsher
                   ` (9 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Anjali Singhai Jain, netdev, gospo, sassmann, Jesse Brandeburg,
	Jeff Kirsher

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

Fix a bug where the driver was erroneously exiting the driver unload
path if one part of the unload failed.  Instead of the original way
the driver should always continue when disabling and be sure to disable
all queues.

Change-ID: Ib8c81c596bc87c31d8e9ca97ebf871168475279d
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 80c83eb..65c27cb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3113,7 +3113,7 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable)
  **/
 int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool request)
 {
-	int ret;
+	int ret = 0;
 
 	/* do rx first for enable and last for disable */
 	if (request) {
@@ -3122,10 +3122,9 @@ int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool request)
 			return ret;
 		ret = i40e_vsi_control_tx(vsi, request);
 	} else {
-		ret = i40e_vsi_control_tx(vsi, request);
-		if (ret)
-			return ret;
-		ret = i40e_vsi_control_rx(vsi, request);
+		/* Ignore return value, we need to shutdown whatever we can */
+		i40e_vsi_control_tx(vsi, request);
+		i40e_vsi_control_rx(vsi, request);
 	}
 
 	return ret;
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 09/17] i40e: allow VF to remove any MAC filter
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (7 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 08/17] i40e: do not bail when disabling if Tx queue disable fails Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 10/17] i40e: check for possible incorrect ipv6 checksum Jeff Kirsher
                   ` (8 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Mitch Williams, netdev, gospo, sassmann, Jesse Brandeburg, Jeff Kirsher

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

If you use ip to change the MAC address of a VF while the VF
driver is loaded, closing the VF interface or unloading the VF
driver will cause the VF driver to remove the MAC filter for its
original (now invalid) MAC address. This would cause the PF
driver to kick an error message to the log, and back to the VF
driver.

Since the VF driver has not really done anything naughty, let's
not punish it. Don't check for MAC address overrides on the
delete operation, just make sure it's a valid address. This keeps
us from spamming the log with confusing errors.

Change-ID: I1f051bd4014e50855457d928c9ee8b0766981b2f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 51a4f61..d04a776 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1525,9 +1525,13 @@ static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
 	}
 
 	for (i = 0; i < al->num_elements; i++) {
-		ret = i40e_check_vf_permission(vf, al->list[i].addr);
-		if (ret)
+		if (is_broadcast_ether_addr(al->list[i].addr) ||
+		    is_zero_ether_addr(al->list[i].addr)) {
+			dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
+				al->list[i].addr);
+			ret = I40E_ERR_INVALID_MAC_ADDR;
 			goto error_param;
+		}
 	}
 	vsi = pf->vsi[vsi_id];
 
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 10/17] i40e: check for possible incorrect ipv6 checksum
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (8 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 09/17] i40e: allow VF to remove any MAC filter Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 11/17] i40e: adjust ITR max and min values Jeff Kirsher
                   ` (7 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Shannon Nelson, netdev, gospo, sassmann, Jesse Brandeburg, Jeff Kirsher

From: Shannon Nelson <shannon.nelson@intel.com>

If the IPV6EXADD bit is set in the Rx descriptor status, there
was an optional extension header with an alternate IP address
detected.  The HW checksum offload doesn't handle the alternate
IP address correctly so likely comes up with the wrong answer.
Thus, if the bit is set we ignore the checksum offload value.

Change-ID: I70ff8d38cdcddccf44107691cae13d0c07c284c8
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@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/i40e/i40e_type.h | 4 +++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 43d88dd..946d8b1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -892,6 +892,10 @@ static inline void i40e_rx_checksum(struct i40e_vsi *vsi,
 	      rx_status & (1 << I40E_RX_DESC_STATUS_L3L4P_SHIFT)))
 		return;
 
+	/* likely incorrect csum if alternate IP extention headers found */
+	if (rx_status & (1 << I40E_RX_DESC_STATUS_IPV6EXADD_SHIFT))
+		return;
+
 	/* IP or L4 or outmost IP checksum error */
 	if (rx_error & ((1 << I40E_RX_DESC_ERROR_IPE_SHIFT) |
 			(1 << I40E_RX_DESC_ERROR_L4E_SHIFT) |
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 072c850..80cf240 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -499,7 +499,9 @@ enum i40e_rx_desc_status_bits {
 	I40E_RX_DESC_STATUS_FLM_SHIFT		= 11,
 	I40E_RX_DESC_STATUS_FLTSTAT_SHIFT	= 12, /* 2 BITS */
 	I40E_RX_DESC_STATUS_LPBK_SHIFT		= 14,
-	I40E_RX_DESC_STATUS_UDP_0_SHIFT		= 16
+	I40E_RX_DESC_STATUS_IPV6EXADD_SHIFT	= 15,
+	I40E_RX_DESC_STATUS_RESERVED_SHIFT	= 16, /* 2 BITS */
+	I40E_RX_DESC_STATUS_UDP_0_SHIFT		= 18
 };
 
 #define I40E_RXD_QW1_STATUS_TSYNINDX_SHIFT   I40E_RX_DESC_STATUS_TSYNINDX_SHIFT
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 11/17] i40e: adjust ITR max and min values
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (9 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 10/17] i40e: check for possible incorrect ipv6 checksum Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 12/17] i40e: clear qtx_head before enabling Tx queue Jeff Kirsher
                   ` (6 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Shannon Nelson, netdev, gospo, sassmann, Jesse Brandeburg, Jeff Kirsher

From: Shannon Nelson <shannon.nelson@intel.com>

Set the ITR max and min values to match the hardware max value
and the recommended min value.  These values are shifted right
one bit because the register counts in 2 usec units, so leave
a comment to explain.

Change-ID: I289c27955cf6c566a6d21b95c3110b88cbb15dad
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 6f8506c..93b8642 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -29,9 +29,8 @@
 
 /* Interrupt Throttling and Rate Limiting (storm control) Goodies */
 
-#define I40E_MAX_ITR               0x07FF
-#define I40E_MIN_ITR               0x0001
-#define I40E_ITR_USEC_RESOLUTION   2
+#define I40E_MAX_ITR               0x0FF0  /* reg uses 2 usec resolution */
+#define I40E_MIN_ITR               0x0004  /* reg uses 2 usec resolution */
 #define I40E_MAX_IRATE             0x03F
 #define I40E_MIN_IRATE             0x001
 #define I40E_IRATE_USEC_RESOLUTION 4
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 12/17] i40e: clear qtx_head before enabling Tx queue
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (10 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 11/17] i40e: adjust ITR max and min values Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 13/17] i40e: call clear_pxe after adminq is initialized Jeff Kirsher
                   ` (5 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Shannon Nelson, netdev, gospo, sassmann, Jesse Brandeburg, Jeff Kirsher

From: Shannon Nelson <shannon.nelson@intel.com>

Make sure the "new" qtx_head[q] register is cleared before
enabling the Tx queue.

Change-ID: I0c7a12815e343a5ae68807af172a35d6c6857935
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 65c27cb..bc14a85 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3008,11 +3008,13 @@ static int i40e_vsi_control_tx(struct i40e_vsi *vsi, bool enable)
 			continue;
 
 		/* turn on/off the queue */
-		if (enable)
+		if (enable) {
+			wr32(hw, I40E_QTX_HEAD(pf_q), 0);
 			tx_reg |= I40E_QTX_ENA_QENA_REQ_MASK |
 				  I40E_QTX_ENA_QENA_STAT_MASK;
-		else
+		} else {
 			tx_reg &= ~I40E_QTX_ENA_QENA_REQ_MASK;
+		}
 
 		wr32(hw, I40E_QTX_ENA(pf_q), tx_reg);
 
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 13/17] i40e: call clear_pxe after adminq is initialized
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (11 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 12/17] i40e: clear qtx_head before enabling Tx queue Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 14/17] i40e: enable PTP Jeff Kirsher
                   ` (4 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Shannon Nelson, netdev, gospo, sassmann, Jesse Brandeburg, Jeff Kirsher

From: Shannon Nelson <shannon.nelson@intel.com>

In the latest firmware the clear_pxe_mode function will use the
AdminQ request, so call this after AdminQ is set up rather than
relying on i40e_pf_reset() to clear the PXE mode.

Change-ID: Ice8cba2e9cbc3c7bde0a0bcf8eaf5009abef040b
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index bc14a85..182ed18 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7612,6 +7612,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_pf_reset;
 	}
 
+	i40e_clear_pxe_mode(hw);
 	err = i40e_get_capabilities(pf);
 	if (err)
 		goto err_adminq_setup;
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 14/17] i40e: enable PTP
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (12 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 13/17] i40e: call clear_pxe after adminq is initialized Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 15/17] i40e: fix log message wording Jeff Kirsher
                   ` (3 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Jacob Keller, netdev, gospo, sassmann, Richard Cochran,
	Ben Hutchings, Matthew Vick, Jesse Brandeburg, Jeff Kirsher

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

New feature: Enable PTP support in the i40e driver.

Change-ID: I6a8e799f582705191f9583afb1b9231a8db96cc8
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/Kconfig             |   1 +
 drivers/net/ethernet/intel/i40e/Makefile       |   1 +
 drivers/net/ethernet/intel/i40e/i40e.h         |  26 +
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c |  33 +-
 drivers/net/ethernet/intel/i40e/i40e_main.c    |  47 +-
 drivers/net/ethernet/intel/i40e/i40e_ptp.c     | 662 +++++++++++++++++++++++++
 drivers/net/ethernet/intel/i40e/i40e_txrx.c    |  53 ++
 drivers/net/ethernet/intel/i40e/i40e_txrx.h    |   3 +
 8 files changed, 824 insertions(+), 2 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/i40e/i40e_ptp.c

diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 9fb2eb8..333bb54 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -243,6 +243,7 @@ config IXGBEVF
 
 config I40E
 	tristate "Intel(R) Ethernet Controller XL710 Family support"
+	select PTP_1588_CLOCK
 	depends on PCI
 	---help---
 	  This driver supports Intel(R) Ethernet Controller XL710 Family of
diff --git a/drivers/net/ethernet/intel/i40e/Makefile b/drivers/net/ethernet/intel/i40e/Makefile
index 6ec1a79..e4d2e27 100644
--- a/drivers/net/ethernet/intel/i40e/Makefile
+++ b/drivers/net/ethernet/intel/i40e/Makefile
@@ -40,4 +40,5 @@ i40e-objs := i40e_main.o \
 	i40e_debugfs.o	\
 	i40e_diag.o	\
 	i40e_txrx.o	\
+	i40e_ptp.o	\
 	i40e_virtchnl_pf.o
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 7dab660..c05984d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -50,6 +50,9 @@
 #include <net/ip6_checksum.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
+#include <linux/clocksource.h>
+#include <linux/net_tstamp.h>
+#include <linux/ptp_clock_kernel.h>
 #include "i40e_type.h"
 #include "i40e_prototype.h"
 #include "i40e_virtchnl.h"
@@ -242,6 +245,7 @@ struct i40e_pf {
 #define I40E_FLAG_DCB_ENABLED                  (u64)(1 << 20)
 #define I40E_FLAG_FDIR_ENABLED                 (u64)(1 << 21)
 #define I40E_FLAG_FDIR_ATR_ENABLED             (u64)(1 << 22)
+#define I40E_FLAG_PTP                          (u64)(1 << 25)
 #define I40E_FLAG_MFP_ENABLED                  (u64)(1 << 26)
 #ifdef CONFIG_I40E_VXLAN
 #define I40E_FLAG_VXLAN_FILTER_SYNC            (u64)(1 << 27)
@@ -302,6 +306,20 @@ 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;
+	struct ptp_clock_info ptp_caps;
+	struct sk_buff *ptp_tx_skb;
+	struct work_struct ptp_tx_work;
+	struct hwtstamp_config tstamp_config;
+	unsigned long ptp_tx_start;
+	unsigned long last_rx_ptp_check;
+	spinlock_t tmreg_lock; /* Used to protect the device time registers. */
+	u64 ptp_base_adj;
+	u32 tx_hwtstamp_timeouts;
+	u32 rx_hwtstamp_cleared;
+	bool ptp_tx;
+	bool ptp_rx;
 };
 
 struct i40e_mac_filter {
@@ -566,4 +584,12 @@ struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
 				      bool is_vf, bool is_netdev);
 void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
 
+void i40e_ptp_rx_hang(struct i40e_vsi *vsi);
+void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf);
+void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index);
+void i40e_ptp_set_increment(struct i40e_pf *pf);
+int i40e_ptp_set_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
+int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
+void i40e_ptp_init(struct i40e_pf *pf);
+void i40e_ptp_stop(struct i40e_pf *pf);
 #endif /* _I40E_H_ */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 342a6e1..7b87d51 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -108,6 +108,8 @@ static struct i40e_stats i40e_gstrings_stats[] = {
 	I40E_PF_STAT("rx_oversize", stats.rx_oversize),
 	I40E_PF_STAT("rx_jabber", stats.rx_jabber),
 	I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
+	I40E_PF_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
+	I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 };
 
 #define I40E_QUEUE_STATS_LEN(n) \
@@ -748,7 +750,36 @@ static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 static int i40e_get_ts_info(struct net_device *dev,
 			    struct ethtool_ts_info *info)
 {
-	return ethtool_op_get_ts_info(dev, info);
+	struct i40e_pf *pf = i40e_netdev_to_pf(dev);
+
+	info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
+				SOF_TIMESTAMPING_RX_SOFTWARE |
+				SOF_TIMESTAMPING_SOFTWARE |
+				SOF_TIMESTAMPING_TX_HARDWARE |
+				SOF_TIMESTAMPING_RX_HARDWARE |
+				SOF_TIMESTAMPING_RAW_HARDWARE;
+
+	if (pf->ptp_clock)
+		info->phc_index = ptp_clock_index(pf->ptp_clock);
+	else
+		info->phc_index = -1;
+
+	info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
+
+	info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
+			   (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
+			   (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
+			   (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
+
+	return 0;
 }
 
 static int i40e_link_test(struct net_device *netdev, u64 *data)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 182ed18..b4e4da5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1698,6 +1698,27 @@ static int i40e_change_mtu(struct net_device *netdev, int new_mtu)
 }
 
 /**
+ * i40e_ioctl - Access the hwtstamp interface
+ * @netdev: network interface device structure
+ * @ifr: interface request data
+ * @cmd: ioctl command
+ **/
+int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+	struct i40e_netdev_priv *np = netdev_priv(netdev);
+	struct i40e_pf *pf = np->vsi->back;
+
+	switch (cmd) {
+	case SIOCGHWTSTAMP:
+		return i40e_ptp_get_ts_config(pf, ifr);
+	case SIOCSHWTSTAMP:
+		return i40e_ptp_set_ts_config(pf, ifr);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+/**
  * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
  * @vsi: the vsi being adjusted
  **/
@@ -2150,7 +2171,8 @@ static int i40e_configure_tx_ring(struct i40e_ring *ring)
 	tx_ctx.base = (ring->dma / 128);
 	tx_ctx.qlen = ring->count;
 	tx_ctx.fd_ena = !!(vsi->back->flags & (I40E_FLAG_FDIR_ENABLED |
-			I40E_FLAG_FDIR_ATR_ENABLED));
+					       I40E_FLAG_FDIR_ATR_ENABLED));
+	tx_ctx.timesync_ena = !!(vsi->back->flags & I40E_FLAG_PTP);
 
 	/* As part of VSI creation/update, FW allocates certain
 	 * Tx arbitration queue sets for each TC enabled for
@@ -2488,6 +2510,7 @@ static void i40e_enable_misc_int_causes(struct i40e_hw *hw)
 	      I40E_PFINT_ICR0_ENA_GRST_MASK          |
 	      I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK |
 	      I40E_PFINT_ICR0_ENA_GPIO_MASK          |
+	      I40E_PFINT_ICR0_ENA_TIMESYNC_MASK      |
 	      I40E_PFINT_ICR0_ENA_STORM_DETECT_MASK  |
 	      I40E_PFINT_ICR0_ENA_HMC_ERR_MASK       |
 	      I40E_PFINT_ICR0_ENA_VFLR_MASK          |
@@ -2831,6 +2854,18 @@ static irqreturn_t i40e_intr(int irq, void *data)
 		dev_info(&pf->pdev->dev, "HMC error interrupt\n");
 	}
 
+	if (icr0 & I40E_PFINT_ICR0_TIMESYNC_MASK) {
+		u32 prttsyn_stat = rd32(hw, I40E_PRTTSYN_STAT_0);
+
+		if (prttsyn_stat & I40E_PRTTSYN_STAT_0_TXTIME_MASK) {
+			ena_mask &= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK;
+			i40e_ptp_tx_hwtstamp(pf);
+			prttsyn_stat &= ~I40E_PRTTSYN_STAT_0_TXTIME_MASK;
+		}
+
+		wr32(hw, I40E_PRTTSYN_STAT_0, prttsyn_stat);
+	}
+
 	/* If a critical error is pending we have no choice but to reset the
 	 * device.
 	 * Report and mask out any remaining unexpected interrupts.
@@ -4304,6 +4339,9 @@ static void i40e_link_event(struct i40e_pf *pf)
 
 	if (pf->vf)
 		i40e_vc_notify_link_state(pf);
+
+	if (pf->flags & I40E_FLAG_PTP)
+		i40e_ptp_set_increment(pf);
 }
 
 /**
@@ -4385,6 +4423,8 @@ static void i40e_watchdog_subtask(struct i40e_pf *pf)
 	for (i = 0; i < I40E_MAX_VEB; i++)
 		if (pf->veb[i])
 			i40e_update_veb_stats(pf->veb[i]);
+
+	i40e_ptp_rx_hang(pf->vsi[pf->lan_vsi]);
 }
 
 /**
@@ -6033,6 +6073,7 @@ static const struct net_device_ops i40e_netdev_ops = {
 	.ndo_validate_addr	= eth_validate_addr,
 	.ndo_set_mac_address	= i40e_set_mac,
 	.ndo_change_mtu		= i40e_change_mtu,
+	.ndo_do_ioctl		= i40e_ioctl,
 	.ndo_tx_timeout		= i40e_tx_timeout,
 	.ndo_vlan_rx_add_vid	= i40e_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= i40e_vlan_rx_kill_vid,
@@ -7299,6 +7340,8 @@ no_autoneg:
 					 ~I40E_PRTDCB_MFLCN_RFCE_MASK);
 
 fc_complete:
+	i40e_ptp_init(pf);
+
 	return ret;
 }
 
@@ -7803,6 +7846,8 @@ static void i40e_remove(struct pci_dev *pdev)
 
 	i40e_dbg_pf_exit(pf);
 
+	i40e_ptp_stop(pf);
+
 	if (pf->flags & I40E_FLAG_SRIOV_ENABLED) {
 		i40e_free_vfs(pf);
 		pf->flags &= ~I40E_FLAG_SRIOV_ENABLED;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
new file mode 100644
index 0000000..e33ec6c
--- /dev/null
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -0,0 +1,662 @@
+/*******************************************************************************
+ *
+ * Intel Ethernet Controller XL710 Family Linux Driver
+ * Copyright(c) 2013 - 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ ******************************************************************************/
+
+#include "i40e.h"
+#include <linux/export.h>
+#include <linux/ptp_classify.h>
+
+/* The XL710 timesync is very much like Intel's 82599 design when it comes to
+ * the fundamental clock design. However, the clock operations are much simpler
+ * in the XL710 because the device supports a full 64 bits of nanoseconds.
+ * Because the field is so wide, we can forgo the cycle counter and just
+ * operate with the nanosecond field directly without fear of overflow.
+ *
+ * Much like the 82599, the update period is dependent upon the link speed:
+ * At 40Gb link or no link, the period is 1.6ns.
+ * At 10Gb link, the period is multiplied by 2. (3.2ns)
+ * At 1Gb link, the period is multiplied by 20. (32ns)
+ * 1588 functionality is not supported at 100Mbps.
+ */
+#define I40E_PTP_40GB_INCVAL 0x0199999999ULL
+#define I40E_PTP_10GB_INCVAL 0x0333333333ULL
+#define I40E_PTP_1GB_INCVAL  0x2000000000ULL
+
+#define I40E_PRTTSYN_CTL1_TSYNTYPE_V1  (0x1 << \
+					I40E_PRTTSYN_CTL1_TSYNTYPE_SHIFT)
+#define I40E_PRTTSYN_CTL1_TSYNTYPE_V2  (0x2 << \
+					I40E_PRTTSYN_CTL1_TSYNTYPE_SHIFT)
+#define I40E_PTP_TX_TIMEOUT  (HZ * 15)
+
+/**
+ * i40e_ptp_read - Read the PHC time from the device
+ * @pf: Board private structure
+ * @ts: timespec structure to hold the current time value
+ *
+ * This function reads the PRTTSYN_TIME registers and stores them in a
+ * timespec. However, since the registers are 64 bits of nanoseconds, we must
+ * convert the result to a timespec before we can return.
+ **/
+static void i40e_ptp_read(struct i40e_pf *pf, struct timespec *ts)
+{
+	struct i40e_hw *hw = &pf->hw;
+	u32 hi, lo;
+	u64 ns;
+
+	/* The timer latches on the lowest register read. */
+	lo = rd32(hw, I40E_PRTTSYN_TIME_L);
+	hi = rd32(hw, I40E_PRTTSYN_TIME_H);
+
+	ns = (((u64)hi) << 32) | lo;
+
+	*ts = ns_to_timespec(ns);
+}
+
+/**
+ * i40e_ptp_write - Write the PHC time to the device
+ * @pf: Board private structure
+ * @ts: timespec structure that holds the new time value
+ *
+ * This function writes the PRTTSYN_TIME registers with the user value. Since
+ * we receive a timespec from the stack, we must convert that timespec into
+ * nanoseconds before programming the registers.
+ **/
+static void i40e_ptp_write(struct i40e_pf *pf, const struct timespec *ts)
+{
+	struct i40e_hw *hw = &pf->hw;
+	u64 ns = timespec_to_ns(ts);
+
+	/* The timer will not update until the high register is written, so
+	 * write the low register first.
+	 */
+	wr32(hw, I40E_PRTTSYN_TIME_L, ns & 0xFFFFFFFF);
+	wr32(hw, I40E_PRTTSYN_TIME_H, ns >> 32);
+}
+
+/**
+ * i40e_ptp_convert_to_hwtstamp - Convert device clock to system time
+ * @hwtstamps: Timestamp structure to update
+ * @timestamp: Timestamp from the hardware
+ *
+ * We need to convert the NIC clock value into a hwtstamp which can be used by
+ * the upper level timestamping functions. Since the timestamp is simply a 64-
+ * bit nanosecond value, we can call ns_to_ktime directly to handle this.
+ **/
+static void i40e_ptp_convert_to_hwtstamp(struct skb_shared_hwtstamps *hwtstamps,
+					 u64 timestamp)
+{
+	memset(hwtstamps, 0, sizeof(*hwtstamps));
+
+	hwtstamps->hwtstamp = ns_to_ktime(timestamp);
+}
+
+/**
+ * i40e_ptp_adjfreq - Adjust the PHC frequency
+ * @ptp: The PTP clock structure
+ * @ppb: Parts per billion adjustment from the base
+ *
+ * Adjust the frequency of the PHC by the indicated parts per billion from the
+ * base frequency.
+ **/
+static int i40e_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+{
+	struct i40e_pf *pf = container_of(ptp, struct i40e_pf, ptp_caps);
+	struct i40e_hw *hw = &pf->hw;
+	u64 adj, freq, diff;
+	int neg_adj = 0;
+
+	if (ppb < 0) {
+		neg_adj = 1;
+		ppb = -ppb;
+	}
+
+	smp_mb(); /* Force any pending update before accessing. */
+	adj = ACCESS_ONCE(pf->ptp_base_adj);
+
+	freq = adj;
+	freq *= ppb;
+	diff = div_u64(freq, 1000000000ULL);
+
+	if (neg_adj)
+		adj -= diff;
+	else
+		adj += diff;
+
+	wr32(hw, I40E_PRTTSYN_INC_L, adj & 0xFFFFFFFF);
+	wr32(hw, I40E_PRTTSYN_INC_H, adj >> 32);
+
+	return 0;
+}
+
+/**
+ * i40e_ptp_adjtime - Adjust the PHC time
+ * @ptp: The PTP clock structure
+ * @delta: Offset in nanoseconds to adjust the PHC time by
+ *
+ * Adjust the frequency of the PHC by the indicated parts per billion from the
+ * base frequency.
+ **/
+static int i40e_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
+{
+	struct i40e_pf *pf = container_of(ptp, struct i40e_pf, ptp_caps);
+	struct timespec now, then = ns_to_timespec(delta);
+	unsigned long flags;
+
+	spin_lock_irqsave(&pf->tmreg_lock, flags);
+
+	i40e_ptp_read(pf, &now);
+	now = timespec_add(now, then);
+	i40e_ptp_write(pf, (const struct timespec *)&now);
+
+	spin_unlock_irqrestore(&pf->tmreg_lock, flags);
+
+	return 0;
+}
+
+/**
+ * i40e_ptp_gettime - Get the time of the PHC
+ * @ptp: The PTP clock structure
+ * @ts: timespec structure to hold the current time value
+ *
+ * Read the device clock and return the correct value on ns, after converting it
+ * into a timespec struct.
+ **/
+static int i40e_ptp_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
+{
+	struct i40e_pf *pf = container_of(ptp, struct i40e_pf, ptp_caps);
+	unsigned long flags;
+
+	spin_lock_irqsave(&pf->tmreg_lock, flags);
+	i40e_ptp_read(pf, ts);
+	spin_unlock_irqrestore(&pf->tmreg_lock, flags);
+
+	return 0;
+}
+
+/**
+ * i40e_ptp_settime - Set the time of the PHC
+ * @ptp: The PTP clock structure
+ * @ts: timespec structure that holds the new time value
+ *
+ * Set the device clock to the user input value. The conversion from timespec
+ * to ns happens in the write function.
+ **/
+static int i40e_ptp_settime(struct ptp_clock_info *ptp,
+			    const struct timespec *ts)
+{
+	struct i40e_pf *pf = container_of(ptp, struct i40e_pf, ptp_caps);
+	unsigned long flags;
+
+	spin_lock_irqsave(&pf->tmreg_lock, flags);
+	i40e_ptp_write(pf, ts);
+	spin_unlock_irqrestore(&pf->tmreg_lock, flags);
+
+	return 0;
+}
+
+/**
+ * i40e_ptp_tx_work
+ * @work: pointer to work struct
+ *
+ * This work function polls the PRTTSYN_STAT_0.TXTIME bit to determine when a
+ * Tx timestamp event has occurred, in order to pass the Tx timestamp value up
+ * the stack in the skb.
+ */
+static void i40e_ptp_tx_work(struct work_struct *work)
+{
+	struct i40e_pf *pf = container_of(work, struct i40e_pf,
+					  ptp_tx_work);
+	struct i40e_hw *hw = &pf->hw;
+	u32 prttsyn_stat_0;
+
+	if (!pf->ptp_tx_skb)
+		return;
+
+	if (time_is_before_jiffies(pf->ptp_tx_start +
+				   I40E_PTP_TX_TIMEOUT)) {
+		dev_kfree_skb_any(pf->ptp_tx_skb);
+		pf->ptp_tx_skb = NULL;
+		pf->tx_hwtstamp_timeouts++;
+		dev_warn(&pf->pdev->dev, "clearing Tx timestamp hang");
+		return;
+	}
+
+	prttsyn_stat_0 = rd32(hw, I40E_PRTTSYN_STAT_0);
+	if (prttsyn_stat_0 & I40E_PRTTSYN_STAT_0_TXTIME_MASK)
+		i40e_ptp_tx_hwtstamp(pf);
+	else
+		schedule_work(&pf->ptp_tx_work);
+}
+
+/**
+ * i40e_ptp_enable - Enable/disable ancillary features of the PHC subsystem
+ * @ptp: The PTP clock structure
+ * @rq: The requested feature to change
+ * @on: Enable/disable flag
+ *
+ * The XL710 does not support any of the ancillary features of the PHC
+ * subsystem, so this function may just return.
+ **/
+static int i40e_ptp_enable(struct ptp_clock_info *ptp,
+			   struct ptp_clock_request *rq, int on)
+{
+	return -EOPNOTSUPP;
+}
+
+/**
+ * i40e_ptp_rx_hang - Detect error case when Rx timestamp registers are hung
+ * @vsi: The VSI with the rings relevant to 1588
+ *
+ * This watchdog task is scheduled to detect error case where hardware has
+ * dropped an Rx packet that was timestamped when the ring is full. The
+ * particular error is rare but leaves the device in a state unable to timestamp
+ * any future packets.
+ **/
+void i40e_ptp_rx_hang(struct i40e_vsi *vsi)
+{
+	struct i40e_pf *pf = vsi->back;
+	struct i40e_hw *hw = &pf->hw;
+	struct i40e_ring *rx_ring;
+	unsigned long rx_event;
+	u32 prttsyn_stat;
+	int n;
+
+	if (pf->flags & I40E_FLAG_PTP)
+		return;
+
+	prttsyn_stat = rd32(hw, I40E_PRTTSYN_STAT_1);
+
+	/* Unless all four receive timestamp registers are latched, we are not
+	 * concerned about a possible PTP Rx hang, so just update the timeout
+	 * counter and exit.
+	 */
+	if (!(prttsyn_stat & ((I40E_PRTTSYN_STAT_1_RXT0_MASK <<
+			       I40E_PRTTSYN_STAT_1_RXT0_SHIFT) |
+			      (I40E_PRTTSYN_STAT_1_RXT1_MASK <<
+			       I40E_PRTTSYN_STAT_1_RXT1_SHIFT) |
+			      (I40E_PRTTSYN_STAT_1_RXT2_MASK <<
+			       I40E_PRTTSYN_STAT_1_RXT2_SHIFT) |
+			      (I40E_PRTTSYN_STAT_1_RXT3_MASK <<
+			       I40E_PRTTSYN_STAT_1_RXT3_SHIFT)))) {
+		pf->last_rx_ptp_check = jiffies;
+		return;
+	}
+
+	/* Determine the most recent watchdog or rx_timestamp event. */
+	rx_event = pf->last_rx_ptp_check;
+	for (n = 0; n < vsi->num_queue_pairs; n++) {
+		rx_ring = vsi->rx_rings[n];
+		if (time_after(rx_ring->last_rx_timestamp, rx_event))
+			rx_event = rx_ring->last_rx_timestamp;
+	}
+
+	/* Only need to read the high RXSTMP register to clear the lock */
+	if (time_is_before_jiffies(rx_event + 5 * HZ)) {
+		rd32(hw, I40E_PRTTSYN_RXTIME_H(0));
+		rd32(hw, I40E_PRTTSYN_RXTIME_H(1));
+		rd32(hw, I40E_PRTTSYN_RXTIME_H(2));
+		rd32(hw, I40E_PRTTSYN_RXTIME_H(3));
+		pf->last_rx_ptp_check = jiffies;
+		pf->rx_hwtstamp_cleared++;
+		dev_warn(&vsi->back->pdev->dev,
+			 "%s: clearing Rx timestamp hang",
+			 __func__);
+	}
+}
+
+/**
+ * i40e_ptp_tx_hwtstamp - Utility function which returns the Tx timestamp
+ * @pf: Board private structure
+ *
+ * Read the value of the Tx timestamp from the registers, convert it into a
+ * value consumable by the stack, and store that result into the shhwtstamps
+ * struct before returning it up the stack.
+ **/
+void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf)
+{
+	struct skb_shared_hwtstamps shhwtstamps;
+	struct i40e_hw *hw = &pf->hw;
+	u32 hi, lo;
+	u64 ns;
+
+	lo = rd32(hw, I40E_PRTTSYN_TXTIME_L);
+	hi = rd32(hw, I40E_PRTTSYN_TXTIME_H);
+
+	ns = (((u64)hi) << 32) | lo;
+
+	i40e_ptp_convert_to_hwtstamp(&shhwtstamps, ns);
+	skb_tstamp_tx(pf->ptp_tx_skb, &shhwtstamps);
+	dev_kfree_skb_any(pf->ptp_tx_skb);
+	pf->ptp_tx_skb = NULL;
+}
+
+/**
+ * i40e_ptp_rx_hwtstamp - Utility function which checks for an Rx timestamp
+ * @pf: Board private structure
+ * @skb: Particular skb to send timestamp with
+ * @index: Index into the receive timestamp registers for the timestamp
+ *
+ * The XL710 receives a notification in the receive descriptor with an offset
+ * into the set of RXTIME registers where the timestamp is for that skb. This
+ * function goes and fetches the receive timestamp from that offset, if a valid
+ * one exists. The RXTIME registers are in ns, so we must convert the result
+ * first.
+ **/
+void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index)
+{
+	u32 prttsyn_stat, hi, lo;
+	struct i40e_hw *hw;
+	u64 ns;
+
+	/* Since we cannot turn off the Rx timestamp logic if the device is
+	 * doing Tx timestamping, check if Rx timestamping is configured.
+	 */
+	if (!pf->ptp_rx)
+		return;
+
+	hw = &pf->hw;
+
+	prttsyn_stat = rd32(hw, I40E_PRTTSYN_STAT_1);
+
+	if (!(prttsyn_stat & (1 << index)))
+		return;
+
+	lo = rd32(hw, I40E_PRTTSYN_RXTIME_L(index));
+	hi = rd32(hw, I40E_PRTTSYN_RXTIME_H(index));
+
+	ns = (((u64)hi) << 32) | lo;
+
+	i40e_ptp_convert_to_hwtstamp(skb_hwtstamps(skb), ns);
+}
+
+/**
+ * i40e_ptp_set_increment - Utility function to update clock increment rate
+ * @pf: Board private structure
+ *
+ * During a link change, the DMA frequency that drives the 1588 logic will
+ * change. In order to keep the PRTTSYN_TIME registers in units of nanoseconds,
+ * we must update the increment value per clock tick.
+ **/
+void i40e_ptp_set_increment(struct i40e_pf *pf)
+{
+	struct i40e_link_status *hw_link_info;
+	struct i40e_hw *hw = &pf->hw;
+	u64 incval;
+
+	hw_link_info = &hw->phy.link_info;
+
+	i40e_aq_get_link_info(&pf->hw, true, NULL, NULL);
+
+	switch (hw_link_info->link_speed) {
+	case I40E_LINK_SPEED_10GB:
+		incval = I40E_PTP_10GB_INCVAL;
+		break;
+	case I40E_LINK_SPEED_1GB:
+		incval = I40E_PTP_1GB_INCVAL;
+		break;
+	case I40E_LINK_SPEED_100MB:
+		dev_warn(&pf->pdev->dev,
+			 "%s: 1588 functionality is not supported at 100 Mbps. Stopping the PHC.\n",
+			 __func__);
+		incval = 0;
+		break;
+	case I40E_LINK_SPEED_40GB:
+	default:
+		incval = I40E_PTP_40GB_INCVAL;
+		break;
+	}
+
+	/* Write the new increment value into the increment register. The
+	 * hardware will not update the clock until both registers have been
+	 * written.
+	 */
+	wr32(hw, I40E_PRTTSYN_INC_L, incval & 0xFFFFFFFF);
+	wr32(hw, I40E_PRTTSYN_INC_H, incval >> 32);
+
+	/* Update the base adjustement value. */
+	ACCESS_ONCE(pf->ptp_base_adj) = incval;
+	smp_mb(); /* Force the above update. */
+}
+
+/**
+ * i40e_ptp_get_ts_config - ioctl interface to read the HW timestamping
+ * @pf: Board private structure
+ * @ifreq: ioctl data
+ *
+ * Obtain the current hardware timestamping settigs as requested. To do this,
+ * keep a shadow copy of the timestamp settings rather than attempting to
+ * deconstruct it from the registers.
+ **/
+int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr)
+{
+	struct hwtstamp_config *config = &pf->tstamp_config;
+
+	return copy_to_user(ifr->ifr_data, config, sizeof(*config)) ?
+		-EFAULT : 0;
+}
+
+/**
+ * i40e_ptp_set_ts_config - ioctl interface to control the HW timestamping
+ * @pf: Board private structure
+ * @ifreq: ioctl data
+ *
+ * Respond to the user filter requests and make the appropriate hardware
+ * changes here. The XL710 cannot support splitting of the Tx/Rx timestamping
+ * logic, so keep track in software of whether to indicate these timestamps
+ * or not.
+ *
+ * It is permissible to "upgrade" the user request to a broader filter, as long
+ * as the user receives the timestamps they care about and the user is notified
+ * the filter has been broadened.
+ **/
+int i40e_ptp_set_ts_config(struct i40e_pf *pf, struct ifreq *ifr)
+{
+	struct i40e_hw *hw = &pf->hw;
+	struct hwtstamp_config *config = &pf->tstamp_config;
+	u32 pf_id, tsyntype, regval;
+
+	if (copy_from_user(config, ifr->ifr_data, sizeof(*config)))
+		return -EFAULT;
+
+	/* Reserved for future extensions. */
+	if (config->flags)
+		return -EINVAL;
+
+	/* Confirm that 1588 is supported on this PF. */
+	pf_id = (rd32(hw, I40E_PRTTSYN_CTL0) & I40E_PRTTSYN_CTL0_PF_ID_MASK) >>
+		I40E_PRTTSYN_CTL0_PF_ID_SHIFT;
+	if (hw->pf_id != pf_id)
+		return -EINVAL;
+
+	switch (config->tx_type) {
+	case HWTSTAMP_TX_OFF:
+		pf->ptp_tx = false;
+		break;
+	case HWTSTAMP_TX_ON:
+		pf->ptp_tx = true;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	switch (config->rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		pf->ptp_rx = false;
+		tsyntype = 0;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
+	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
+		pf->ptp_rx = true;
+		tsyntype = I40E_PRTTSYN_CTL1_V1MESSTYPE0_MASK |
+			   I40E_PRTTSYN_CTL1_TSYNTYPE_V1 |
+			   I40E_PRTTSYN_CTL1_UDP_ENA_MASK;
+		config->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+		pf->ptp_rx = true;
+		tsyntype = I40E_PRTTSYN_CTL1_V2MESSTYPE0_MASK |
+			   I40E_PRTTSYN_CTL1_TSYNTYPE_V2 |
+			   I40E_PRTTSYN_CTL1_UDP_ENA_MASK;
+		config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
+		break;
+	case HWTSTAMP_FILTER_ALL:
+	default:
+		return -ERANGE;
+	}
+
+	/* Clear out all 1588-related registers to clear and unlatch them. */
+	rd32(hw, I40E_PRTTSYN_STAT_0);
+	rd32(hw, I40E_PRTTSYN_TXTIME_H);
+	rd32(hw, I40E_PRTTSYN_RXTIME_H(0));
+	rd32(hw, I40E_PRTTSYN_RXTIME_H(1));
+	rd32(hw, I40E_PRTTSYN_RXTIME_H(2));
+	rd32(hw, I40E_PRTTSYN_RXTIME_H(3));
+
+	/* Enable/disable the Tx timestamp interrupt based on user input. */
+	regval = rd32(hw, I40E_PRTTSYN_CTL0);
+	if (pf->ptp_tx)
+		regval |= I40E_PRTTSYN_CTL0_TXTIME_INT_ENA_MASK;
+	else
+		regval &= ~I40E_PRTTSYN_CTL0_TXTIME_INT_ENA_MASK;
+	wr32(hw, I40E_PRTTSYN_CTL0, regval);
+
+	regval = rd32(hw, I40E_PFINT_ICR0_ENA);
+	if (pf->ptp_tx)
+		regval |= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK;
+	else
+		regval &= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK;
+	wr32(hw, I40E_PFINT_ICR0_ENA, regval);
+
+	/* There is no simple on/off switch for Rx. To "disable" Rx support,
+	 * ignore any received timestamps, rather than turn off the clock.
+	 */
+	if (pf->ptp_rx) {
+		regval = rd32(hw, I40E_PRTTSYN_CTL1);
+		/* clear everything but the enable bit */
+		regval &= I40E_PRTTSYN_CTL1_TSYNENA_MASK;
+		/* now enable bits for desired Rx timestamps */
+		regval |= tsyntype;
+		wr32(hw, I40E_PRTTSYN_CTL1, regval);
+	}
+
+	return copy_to_user(ifr->ifr_data, config, sizeof(*config)) ?
+		-EFAULT : 0;
+}
+
+/**
+ * i40e_ptp_init - Initialize the 1588 support and register the PHC
+ * @pf: Board private structure
+ *
+ * This function registers the device clock as a PHC. If it is successful, it
+ * starts the clock in the hardware.
+ **/
+void i40e_ptp_init(struct i40e_pf *pf)
+{
+	struct i40e_hw *hw = &pf->hw;
+	struct net_device *netdev = pf->vsi[pf->lan_vsi]->netdev;
+
+	strncpy(pf->ptp_caps.name, "i40e", sizeof(pf->ptp_caps.name));
+	pf->ptp_caps.owner = THIS_MODULE;
+	pf->ptp_caps.max_adj = 999999999;
+	pf->ptp_caps.n_ext_ts = 0;
+	pf->ptp_caps.pps = 0;
+	pf->ptp_caps.adjfreq = i40e_ptp_adjfreq;
+	pf->ptp_caps.adjtime = i40e_ptp_adjtime;
+	pf->ptp_caps.gettime = i40e_ptp_gettime;
+	pf->ptp_caps.settime = i40e_ptp_settime;
+	pf->ptp_caps.enable = i40e_ptp_enable;
+
+	/* Attempt to register the clock before enabling the hardware. */
+	pf->ptp_clock = ptp_clock_register(&pf->ptp_caps, &pf->pdev->dev);
+	if (IS_ERR(pf->ptp_clock)) {
+		pf->ptp_clock = NULL;
+		dev_err(&pf->pdev->dev, "%s: ptp_clock_register failed\n",
+			__func__);
+	} else {
+		struct timespec ts;
+		u32 regval;
+
+		spin_lock_init(&pf->tmreg_lock);
+		INIT_WORK(&pf->ptp_tx_work, i40e_ptp_tx_work);
+
+		dev_info(&pf->pdev->dev, "%s: added PHC on %s\n", __func__,
+			 netdev->name);
+		pf->flags |= I40E_FLAG_PTP;
+
+		/* Ensure the clocks are running. */
+		regval = rd32(hw, I40E_PRTTSYN_CTL0);
+		regval |= I40E_PRTTSYN_CTL0_TSYNENA_MASK;
+		wr32(hw, I40E_PRTTSYN_CTL0, regval);
+		regval = rd32(hw, I40E_PRTTSYN_CTL1);
+		regval |= I40E_PRTTSYN_CTL1_TSYNENA_MASK;
+		wr32(hw, I40E_PRTTSYN_CTL1, regval);
+
+		/* Set the increment value per clock tick. */
+		i40e_ptp_set_increment(pf);
+
+		/* reset the tstamp_config */
+		memset(&pf->tstamp_config, 0, sizeof(pf->tstamp_config));
+
+		/* Set the clock value. */
+		ts = ktime_to_timespec(ktime_get_real());
+		i40e_ptp_settime(&pf->ptp_caps, &ts);
+	}
+}
+
+/**
+ * i40e_ptp_stop - Disable the driver/hardware support and unregister the PHC
+ * @pf: Board private structure
+ *
+ * This function handles the cleanup work required from the initialization by
+ * clearing out the important information and unregistering the PHC.
+ **/
+void i40e_ptp_stop(struct i40e_pf *pf)
+{
+	pf->flags &= ~I40E_FLAG_PTP;
+	pf->ptp_tx = false;
+	pf->ptp_rx = false;
+
+	cancel_work_sync(&pf->ptp_tx_work);
+	if (pf->ptp_tx_skb) {
+		dev_kfree_skb_any(pf->ptp_tx_skb);
+		pf->ptp_tx_skb = NULL;
+	}
+
+	if (pf->ptp_clock) {
+		ptp_clock_unregister(pf->ptp_clock);
+		pf->ptp_clock = NULL;
+		dev_info(&pf->pdev->dev, "%s: removed PHC on %s\n", __func__,
+			 pf->vsi[pf->lan_vsi]->netdev->name);
+	}
+}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 946d8b1..a089ac1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1088,6 +1088,13 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
 		}
 
 		skb->rxhash = i40e_rx_hash(rx_ring, rx_desc);
+		if (unlikely(rx_status & I40E_RXD_QW1_STATUS_TSYNVALID_MASK)) {
+			i40e_ptp_rx_hwtstamp(vsi->back, skb, (rx_status &
+					   I40E_RXD_QW1_STATUS_TSYNINDX_MASK) >>
+					   I40E_RXD_QW1_STATUS_TSYNINDX_SHIFT);
+			rx_ring->last_rx_timestamp = jiffies;
+		}
+
 		/* probably a little skewed due to removing CRC */
 		total_rx_bytes += skb->len;
 		total_rx_packets++;
@@ -1426,6 +1433,46 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
 }
 
 /**
+ * i40e_tsyn - set up the tsyn context descriptor
+ * @tx_ring:  ptr to the ring to send
+ * @skb:      ptr to the skb we're sending
+ * @tx_flags: the collected send information
+ *
+ * Returns 0 if no Tx timestamp can happen and 1 if the timestamp will happen
+ **/
+static int i40e_tsyn(struct i40e_ring *tx_ring, struct sk_buff *skb,
+		     u32 tx_flags, u64 *cd_type_cmd_tso_mss)
+{
+	struct i40e_pf *pf;
+
+	if (likely(!(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)))
+		return 0;
+
+	/* Tx timestamps cannot be sampled when doing TSO */
+	if (tx_flags & I40E_TX_FLAGS_TSO)
+		return 0;
+
+	/* only timestamp the outbound packet if the user has requested it and
+	 * we are not already transmitting a packet to be timestamped
+	 */
+	pf = i40e_netdev_to_pf(tx_ring->netdev);
+	if (pf->ptp_tx && !pf->ptp_tx_skb) {
+		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+		pf->ptp_tx_skb = skb_get(skb);
+	} else {
+		return 0;
+	}
+
+	*cd_type_cmd_tso_mss |= (u64)I40E_TX_CTX_DESC_TSYN <<
+				I40E_TXD_CTX_QW1_CMD_SHIFT;
+
+	pf->ptp_tx_start = jiffies;
+	schedule_work(&pf->ptp_tx_work);
+
+	return 1;
+}
+
+/**
  * i40e_tx_enable_csum - Enable Tx checksum offloads
  * @skb: send buffer
  * @tx_flags: Tx flags currently set
@@ -1801,6 +1848,7 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
 	__be16 protocol;
 	u32 td_cmd = 0;
 	u8 hdr_len = 0;
+	int tsyn;
 	int tso;
 	if (0 == i40e_xmit_descriptor_count(skb, tx_ring))
 		return NETDEV_TX_BUSY;
@@ -1831,6 +1879,11 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
 
 	skb_tx_timestamp(skb);
 
+	tsyn = i40e_tsyn(tx_ring, skb, tx_flags, &cd_type_cmd_tso_mss);
+
+	if (tsyn)
+		tx_flags |= I40E_TX_FLAGS_TSYN;
+
 	/* always enable CRC insertion offload */
 	td_cmd |= I40E_TX_DESC_CMD_ICRC;
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 93b8642..d534969 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -136,6 +136,7 @@ enum i40e_dyn_idx_t {
 #define I40E_TX_FLAGS_IPV6		(u32)(1 << 5)
 #define I40E_TX_FLAGS_FCCRC		(u32)(1 << 6)
 #define I40E_TX_FLAGS_FSO		(u32)(1 << 7)
+#define I40E_TX_FLAGS_TSYN		(u32)(1 << 8)
 #define I40E_TX_FLAGS_VLAN_MASK		0xffff0000
 #define I40E_TX_FLAGS_VLAN_PRIO_MASK	0xe0000000
 #define I40E_TX_FLAGS_VLAN_PRIO_SHIFT	29
@@ -248,6 +249,8 @@ struct i40e_ring {
 	u8 atr_sample_rate;
 	u8 atr_count;
 
+	unsigned long last_rx_timestamp;
+
 	bool ring_active;		/* is ring online or not */
 
 	/* stats structs */
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 15/17] i40e: fix log message wording
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (13 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 14/17] i40e: enable PTP Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 16/17] i40e: Bump version Jeff Kirsher
                   ` (2 subsequent siblings)
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Shannon Nelson, netdev, gospo, sassmann, Jesse Brandeburg, Jeff Kirsher

From: Shannon Nelson <shannon.nelson@intel.com>

Change the redundant "vsi VSI" to VSI.

Change-ID: Ic16ea5820a99abc7831713cde39e7d032a7ba4d3
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 0220b18..36a5cc8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1083,7 +1083,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 		if (!vsi) {
 			dev_info(&pf->pdev->dev,
-				 "add relay: vsi VSI %d not found\n", vsi_seid);
+				 "add relay: VSI %d not found\n", vsi_seid);
 			goto command_write_done;
 		}
 
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 16/17] i40e: Bump version
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (14 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 15/17] i40e: fix log message wording Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-11  0:47 ` [net-next v3 17/17] i40evf: fix s390 build failure due to implicit prefetch.h Jeff Kirsher
  2014-01-12  4:51 ` [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates David Miller
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Catherine Sullivan, netdev, gospo, sassmann, Jesse Brandeburg,
	Jeff Kirsher

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

Update the driver version to 0.3.28-k.

Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index b4e4da5..ad04da2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -38,7 +38,7 @@ static const char i40e_driver_string[] =
 
 #define DRV_VERSION_MAJOR 0
 #define DRV_VERSION_MINOR 3
-#define DRV_VERSION_BUILD 27
+#define DRV_VERSION_BUILD 28
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* [net-next v3 17/17] i40evf: fix s390 build failure due to implicit prefetch.h
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (15 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 16/17] i40e: Bump version Jeff Kirsher
@ 2014-01-11  0:47 ` Jeff Kirsher
  2014-01-12  4:51 ` [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates David Miller
  17 siblings, 0 replies; 19+ messages in thread
From: Jeff Kirsher @ 2014-01-11  0:47 UTC (permalink / raw)
  To: davem
  Cc: Paul Gortmaker, netdev, gospo, sassmann, Mitch Williams,
	Greg Rose, Jeff Kirsher

From: Paul Gortmaker <paul.gortmaker@windriver.com>

As of commit 7f12ad741a4870b8b6e3aafbcd868d0191770802 ("i40evf: transmit
and receive functionality") the s390 builds (allyesconfig) fail with:

drivers/net/ethernet/intel/i40evf/i40e_txrx.c: In function 'i40e_clean_rx_irq':
drivers/net/ethernet/intel/i40evf/i40e_txrx.c:818:3: error: implicit declaration of function 'prefetch'
make[5]: *** [drivers/net/ethernet/intel/i40evf/i40e_txrx.o] Error 1

due to an implicit assumption that the prototype from linux/prefetch.h
will be present.

Cc: Mitch Williams <mitch.a.williams@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 8f2b3b2..ffdb01d 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -21,6 +21,8 @@
  *
  ******************************************************************************/
 
+#include <linux/prefetch.h>
+
 #include "i40evf.h"
 
 static inline __le64 build_ctob(u32 td_cmd, u32 td_offset, unsigned int size,
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread
* Re: [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates
  2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
                   ` (16 preceding siblings ...)
  2014-01-11  0:47 ` [net-next v3 17/17] i40evf: fix s390 build failure due to implicit prefetch.h Jeff Kirsher
@ 2014-01-12  4:51 ` David Miller
  17 siblings, 0 replies; 19+ messages in thread
From: David Miller @ 2014-01-12  4:51 UTC (permalink / raw)
  To: jeffrey.t.kirsher; +Cc: netdev, gospo, sassmann

From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Fri, 10 Jan 2014 16:47:13 -0800

> This series contains updates to i40e and now i40evf.
 ...
>   git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next master

Pulled, thanks a lot Jeff.

^ permalink raw reply	[flat|nested] 19+ messages in thread
end of thread, other threads:[~2014-01-12  4:51 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-01-11  0:47 [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 01/17] i40e: use assignment instead of memcpy Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 02/17] i40e: drop unused macros Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 03/17] i40e: Update the Current NVM version Low value Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 04/17] i40e: Bump version Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 05/17] i40e: fix long lines Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 06/17] i40e: Cleanup Doxygen warnings Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 07/17] i40e: Setting queue count to 1 using ethtool is valid Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 08/17] i40e: do not bail when disabling if Tx queue disable fails Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 09/17] i40e: allow VF to remove any MAC filter Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 10/17] i40e: check for possible incorrect ipv6 checksum Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 11/17] i40e: adjust ITR max and min values Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 12/17] i40e: clear qtx_head before enabling Tx queue Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 13/17] i40e: call clear_pxe after adminq is initialized Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 14/17] i40e: enable PTP Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 15/17] i40e: fix log message wording Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 16/17] i40e: Bump version Jeff Kirsher
2014-01-11  0:47 ` [net-next v3 17/17] i40evf: fix s390 build failure due to implicit prefetch.h Jeff Kirsher
2014-01-12  4:51 ` [net-next v3 00/17][pull request] Intel Wired LAN Driver Updates David Miller

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