AuxXxilium/linux_dsm_epyc7002
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cafa1fca9d
linux_dsm_epyc7002/drivers/net/ethernet
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Jacob Keller cafa1fca9d i40e: fix Timesync Tx interrupt handler code 
This patch fixes the PTP Tx timestamp interrupt handler. The original
code misinterpreted the interrupt handler design. We were clearing the
ena_mask bit for the Timesync interrupts. This is done to indicate that
the interrupt will be handled in a scheduled work item (instead of
immediately) and that work item is responsible for re-enabling the
interrupts. However, the Tx timestamp was being handled immediately and
nothing was ever re-enabling it. This resulted in a single interrupt
working for the life of the driver.

This patch fixes the issue by instead clearing the bit from icr0 which
is used to indicate that the interrupt was immediately handled and can
be re-enabled right away. This patch also clears up a related issue due
to writing the PRTTSYN_STAT_0 register, which was unintentionally
clearing the cause bits for Timesync interrupts.

Change-ID: I057bd70d53c302f60fab78246989cbdfa469d83b
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-26 12:55:39 -04:00
..
3com Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP 2014-04-07 16:36:11 -07:00
8390 net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO 2014-04-12 01:59:38 -04:00
adaptec
adi bfin_mac: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
aeroflex net: greth: remove empty MDIO bus reset function 2014-03-28 01:38:01 -04:00
allwinner net: sun4i-emac: add promiscuous support 2014-04-12 01:59:38 -04:00
alteon
altera Altera TSE: Change driver name used by Ethtool 2014-04-26 12:26:26 -04:00
amd pcnet32: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:53 -07:00
apple
arc arc_emac: write initial MAC address from devicetree to hw 2014-04-22 15:55:11 -04:00
atheros atl1e: remove open-coded skb_cow_head. 2014-03-29 17:49:47 -04:00
broadcom bnx2x: Fix failure to configure VF multicast filters 2014-04-26 12:15:27 -04:00
brocade bna: remove open-coded skb_cow_head. 2014-03-29 17:49:47 -04:00
cadence net: cadence: Fix architecture dependencies 2014-04-24 13:23:37 -04:00
calxeda xgmac: Call dev_kfree/consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:56 -07:00
chelsio cxgb4: use the correct max size for firmware flash 2014-04-15 15:50:02 -04:00
cirrus cs89x0: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:58 -07:00
cisco net: enic: include irq.h for irqreturn_t definitions 2014-04-03 14:04:34 -04:00
davicom dm9000: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:59 -07:00
dec uli526x: Call dev_kfree/consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:00 -07:00
dlink sundance: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:01 -07:00
emulex be2net: Fix invocation of be_close() after be_clear() 2014-04-14 13:41:37 -04:00
faraday net: ftgmac100: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
freescale gianfar: Check if phydev present on ethtool -A 2014-04-24 13:36:16 -04:00
fujitsu
hp
i825xx i825xx: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:02 -07:00
ibm ibmveth: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:03 -07:00
icplus
intel i40e: fix Timesync Tx interrupt handler code 2014-04-26 12:55:39 -04:00
marvell net: mvneta: properly configure the MAC <-> PHY connection in all situations 2014-04-16 14:36:12 -04:00
mellanox mlx4_en: don't use napi_synchronize inside mlx4_en_netpoll 2014-04-16 15:02:42 -04:00
micrel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-25 20:29:20 -04:00
microchip
moxa
myricom myri10ge: Use pci_enable_msix_range() instead of pci_enable_msix() 2014-02-18 15:33:32 -05:00
natsemi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
neterion vxge: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:07 -07:00
nuvoton
nvidia forcedeth: Call dev_kfree_skb_any instead of kfree_skb. 2014-03-24 21:19:08 -07:00
nxp
octeon
oki-semi net: ptp: do not reimplement PTP/BPF classifier 2014-03-31 00:45:09 -04:00
packetengines
pasemi
qlogic qlcnic: Fix memory leak. 2014-04-24 13:31:14 -04:00
rdc r6040: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
realtek net: Replace u64_stats_fetch_begin_bh to u64_stats_fetch_begin_irq 2014-03-14 22:41:36 -04:00
renesas sh_eth: ensure pm_runtime cannot suspend the device during init 2014-03-28 15:59:44 -04:00
samsung net: sxgbe: Added phy_found error path 2014-04-22 16:07:17 -04:00
seeq
sfc sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
sgi
silan sc92031: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:08 -07:00
sis sis900: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:09 -07:00
smsc smc91x: improve definition of debug macros 2014-04-24 13:07:48 -04:00
stmicro net: stmmac: Add SOCFPGA glue driver 2014-03-28 15:06:32 -04:00
sun sungem: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:12 -07:00
tehuti
ti drivers: net: cpsw: enable interrupts after napi enable and clearing previous interrupts 2014-04-11 16:27:41 -04:00
tile tilepro: Call dev_consume_skb_any instead of kfree_skb. 2014-03-24 21:19:12 -07:00
toshiba spider_net: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:13 -07:00
tundra
via Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-25 20:29:20 -04:00
wiznet net: w5100: Use devm_ioremap_resource() 2014-02-28 16:57:24 -05:00
xilinx net: emaclite: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
xircom
xscale net: ptp: move PTP classifier in its own file 2014-04-01 16:43:18 -04:00
dnet.c dnet: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
dnet.h
ethoc.c net: ethoc: remove empty MDIO bus function 2014-03-28 01:38:02 -04:00
fealnx.c
jme.c jme: remove open-coded skb_cow_head. 2014-03-29 17:49:47 -04:00
jme.h
Kconfig net: sxgbe: add basic framework for Samsung 10Gb ethernet driver 2014-03-26 16:49:31 -04:00
korina.c
lantiq_etop.c netdevice: add queue selection fallback handler for ndo_select_queue 2014-02-17 00:36:34 -05:00
Makefile net: sxgbe: add basic framework for Samsung 10Gb ethernet driver 2014-03-26 16:49:31 -04:00
netx-eth.c
s6gmac.c