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94c6825e0f
linux/drivers/net/ethernet
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Matan Barak 94c6825e0f net/mlx5_core: Use tasklet for user-space CQ completion events 
Previously, we've fired all our completion callbacks straight from
our ISR.

Some of those callbacks were lightweight (for example, mlx5 Ethernet
napi callbacks), but some of them did more work (for example,
the user-space RDMA stack uverbs' completion handler). Besides that,
doing more than the minimal work in ISR is generally considered wrong,
it could even lead to a hard lockup of the system. Since when a lot
of completion events are generated by the hardware, the loop over
those events could be so long, that we'll get into a hard lockup by
the system watchdog.

In order to avoid that, add a new way of invoking completion events
callbacks. In the interrupt itself, we add the CQs which receive
completion event to a per-EQ list and schedule a tasklet. In the
tasklet context we loop over all the CQs in the list and invoke the
user callback.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-18 10:45:49 -04:00
..
3com Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-03-08 12:34:12 -05:00
8390 pcnet_cs: add new id 2016-02-16 16:06:13 -05:00
adaptec
adi net: bfin_mac: Use phy_find_first() instead of open-coding it 2016-01-11 00:00:34 -05:00
aeroflex mdio: Move allocation of interrupts into core 2016-01-07 14:31:26 -05:00
agere et131x: check return value of dma_alloc_coherent 2016-02-17 23:32:05 -05:00
allwinner
alteon
altera net: eth: altera: do not free array priv->mdio->irq 2016-03-06 22:59:18 -05:00
amd net: relax setup_tc ndo op handle restriction 2016-03-03 16:25:15 -05:00
apm drivers: net: xgene: Add support for multiple queues 2016-02-17 22:08:34 -05:00
apple
arc net: arc: trivial: cleanup the emac driver 2016-03-16 19:28:01 -04:00
atheros atl2: Disable unimplemented scatter/gather feature 2016-04-21 15:12:23 -04:00
aurora net: ethernet: nb8800: support fixed-link DT node 2016-02-24 11:32:11 -05:00
broadcom net: bcmgenet: device stats are unsigned long 2016-04-16 22:03:39 -04:00
brocade bna: fix list corruption 2016-03-01 15:19:43 -05:00
cadence net: macb: Only call GPIO functions if there is a valid GPIO 2016-03-28 11:39:16 -04:00
calxeda
cavium net: thunderx: Fix broken of_node_put() code. 2016-04-13 23:06:31 -04:00
chelsio RDMA/iw_cxgb4: set the correct FID value in DSGL commands 2016-05-13 19:38:05 -04:00
cirrus
cisco cisco: enic: Update logging macros and uses 2016-03-11 15:07:48 -05:00
davicom net: ethernet: davicom: fix devicetree irq resource 2016-02-21 22:40:49 -05:00
dec net: tulip: Use setup_timer() 2016-02-25 16:51:04 -05:00
dlink
emulex Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-03-08 12:34:12 -05:00
ezchip net: ezchip: adapt driver to little endian architecture 2016-03-03 17:20:08 -05:00
faraday net: ethernet: faraday: Use phy_find_first() instead of open coding it 2016-01-10 22:05:30 -05:00
freescale fec: Do not access unexisting register in Coldfire 2016-03-31 16:04:05 -04:00
fujitsu fmvj18x_cs: fix incorrect indexing of dev->dev_addr[] when copying the MAC address 2016-02-21 22:08:43 -05:00
hisilicon Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-04-01 20:03:33 -05:00
hp net: hp100: remove unnecessary #ifdefs 2016-01-29 20:33:38 -08:00
i825xx
ibm ibmveth: check return of skb_linearize in ibmveth_start_xmit 2016-03-07 14:38:52 -05:00
intel i40e: constify i40e_client_ops structure 2016-05-13 13:47:07 -04:00
marvell net: mvneta: fix changing MTU when using per-cpu processing 2016-04-01 15:16:37 -04:00
mediatek net: mediatek: fix checking for NULL instead of IS_ERR() in .probe 2016-03-23 13:49:13 -04:00
mellanox net/mlx5_core: Use tasklet for user-space CQ completion events 2016-05-18 10:45:49 -04:00
micrel ethernet: micrel: fix some error codes 2016-03-18 19:39:54 -04:00
microchip
moxa net: moxa: fix an error code 2016-03-03 17:17:14 -05:00
myricom
natsemi natsemi: add checks for dma mapping errors 2015-12-19 12:58:46 -05:00
neterion net: vxge: avoid unused function warnings 2016-01-29 20:33:39 -08:00
netronome asm-generic: remove old nonatomic-io wrapper files 2016-03-01 22:25:17 +01:00
nuvoton treewide: Fix typo in printk 2016-02-15 11:18:22 +01:00
nvidia forcedeth: Use setup_timer() 2016-02-25 16:51:05 -05:00
nxp net: lpc_eth: Remove unused variables 2016-01-10 22:50:14 -05:00
oki-semi
packetengines
pasemi pasemi_mac: Replace LRO with GRO 2016-02-17 16:15:45 -05:00
qlogic qlcnic: Update version to 5.3.64 2016-04-24 14:45:04 -04:00
qualcomm net: qca_spi: clear IFF_TX_SKB_SHARING 2016-02-25 16:12:15 -05:00
rdc mdio: Move allocation of interrupts into core 2016-01-07 14:31:26 -05:00
realtek r8169:Remove unnecessary phy reset for pcie nic when setting link spped. 2016-03-13 22:32:44 -04:00
renesas net: ethernet: renesas: ravb_main: test clock rate to avoid division by 0 2016-04-13 22:36:28 -04:00
rocker rocker: move ageing_time from struct rocker to struct ofdpa 2016-03-12 20:11:13 -05:00
samsung net: sxgbe: fix error paths in sxgbe_platform_probe() 2016-03-27 22:39:22 -04:00
seeq
sfc net: relax setup_tc ndo op handle restriction 2016-03-03 16:25:15 -05:00
sgi
silan
sis
smsc net: smc911x: avoid unused variable warnings 2016-03-21 11:26:12 -04:00
stmicro net: stmmac: socfpga: Remove re-registration of reset controller 2016-04-24 14:40:24 -04:00
sun Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
synopsys dwc_eth_qos: do phy_start before resetting hardware 2016-03-02 14:57:15 -05:00
tehuti
ti net: ethernet: davinci_emac: Fix platform_data overwrite 2016-04-21 14:57:47 -04:00
tile tilepro: use to_delayed_work 2016-01-04 16:07:16 -05:00
toshiba PCI: Remove includes of asm/pci-bridge.h 2016-02-05 16:29:28 -06:00
tundra
via
wiznet
xilinx phy: Add an mdio_device structure 2016-01-07 14:31:26 -05:00
xircom
xscale
dnet.c mdio: Move allocation of interrupts into core 2016-01-07 14:31:26 -05:00
dnet.h
ec_bhf.c
ethoc.c net/ethoc: do not free array priv->mdio->irq 2016-03-06 22:58:51 -05:00
fealnx.c
jme.c jme: Fix device PM wakeup API usage 2016-03-07 15:39:45 -05:00
jme.h
Kconfig netdev: Move octeon/octeon_mgmt driver to cavium directory. 2016-03-18 18:25:30 -04:00
korina.c
lantiq_etop.c net: lantiq_etop.c: Use helper to find first phy 2016-01-10 18:03:47 -05:00
Makefile netdev: Move octeon/octeon_mgmt driver to cavium directory. 2016-03-18 18:25:30 -04:00
netx-eth.c