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64d92aa2c9
linux/drivers/net/ethernet
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Nathan Fontenot 64d92aa2c9 ibmvnic: Handle all login error conditions 
There is a bug in handling the possible return codes from sending the
login CRQ. The current code treats any non-success return value,
minus failure to send the crq and a timeout waiting for a login response,
as a need to re-send the login CRQ. This can put the drive in an
infinite loop of trying to login when getting return values other
that a partial success such as a return code of aborted. For these
scenarios the login will not ever succeed at this point and the
driver would need to be reset again.

To resolve this loop trying to login is updated to only retry the
login if the driver gets a return code of a partial success. Other
return codes are treated as an error and the driver returns an error
from ibmvnic_login().

To avoid infinite looping in the partial success return cases, the
number of retries is capped at the maximum number of supported
queues. This value was chosen because the driver does a renegotiation
of capabilities which sets the number of queues possible and allows
the driver to attempt a login for possible value for the number
of queues supported.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-12 21:51:53 -04:00
..
3com 3c59x: fix missing dma_mapping_error check and bad ring refill logic 2018-01-03 13:44:14 -05:00
8390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-04-03 14:04:18 -07:00
adaptec
aeroflex
agere
alacritech
allwinner
alteon net: alteon: acenic: clean up indentation issue 2017-12-15 13:28:30 -05:00
altera ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
amazon net: ena: Eliminate duplicate barriers on weakly-ordered archs 2018-03-26 12:47:56 -04:00
amd ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
apm
apple net/macmace: Drop redundant MACH_IS_MAC test 2018-02-28 12:00:27 -05:00
aquantia net: aquantia: oops when shutdown on already stopped device 2018-04-11 10:41:36 -04:00
arc net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred 2018-03-20 12:06:23 -04:00
atheros
aurora
broadcom bnxt_en: Fix NULL pointer dereference at bnxt_free_irq(). 2018-04-11 14:42:00 -04:00
brocade ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
cadence treewide: fix up files incorrectly marked executable 2018-04-07 13:31:23 -07:00
calxeda
cavium net: thunderx: rework mac addresses list to u64 array 2018-04-09 10:59:38 -04:00
chelsio cxgb4: LLD driver changes to support TLS 2018-03-31 23:37:32 -04:00
cirrus net/mac89x0: Replace custom debug logging with netif_* calls 2018-03-01 21:21:36 -05:00
cisco enic: drop IP proto check for vxlan tunnel delete 2018-03-16 09:50:40 -04:00
cortina net: gemini: fix memory leak 2018-03-20 12:08:45 -04:00
davicom treewide: simplify Kconfig dependencies for removed archs 2018-03-26 15:55:57 +02:00
dec
dlink
emulex ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
ezchip
faraday net: faraday add nds32 support. 2018-02-22 10:44:36 +08:00
freescale net/fsl_pq_mdio: Allow explicit speficition of TBIPA address 2018-04-08 12:44:49 -04:00
fujitsu
hisilicon net: hns3: fix length overflow when CONFIG_ARM64_64K_PAGES 2018-04-04 11:46:14 -04:00
hp
huawei hinic: Replace PCI pool old API 2018-01-02 16:14:49 -06:00
i825xx
ibm ibmvnic: Handle all login error conditions 2018-04-12 21:51:53 -04:00
intel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-09 17:04:10 -07:00
marvell net: mvpp2: Fix parser entry init boundary check 2018-04-05 22:13:16 -04:00
mediatek net: mediatek: Explicitly include pinctrl headers 2018-02-05 09:41:54 -08:00
mellanox Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-09 17:04:10 -07:00
micrel net: ks8851: Support DT-provided MAC address 2017-12-19 13:52:39 -05:00
microchip lan743x: make functions lan743x_csr_read and lan743x_csr_read static 2018-03-12 11:12:38 -04:00
moxa
myricom ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
natsemi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
neterion
netronome nfp: use full 40 bits of the NSP buffer address 2018-04-04 11:45:24 -04:00
ni net: ethernet: nixge: Add support for National Instruments XGE netdev 2018-03-29 11:51:00 -04:00
nuvoton
nvidia forcedeth: remove duplicate structure member in rx 2018-01-23 11:11:41 -05:00
nxp
oki-semi pch_gbe: Deprecate pci_get_bus_and_slot() 2018-01-17 08:16:46 -06:00
packetengines
pasemi net: pasemi: Replace mac address parsing 2017-12-20 12:47:46 -05:00
qlogic Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2018-04-05 11:56:35 -07:00
qualcomm net: qualcomm: rmnet: check for null ep to avoid null pointer dereference 2018-03-26 12:11:24 -04:00
rdc
realtek Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
renesas sh_eth: kill useless check in __sh_eth_get_regs() 2018-04-01 14:09:53 -04:00
rocker rocker: fix possible null pointer dereference in rocker_router_fib_event_work 2018-02-01 09:50:52 -05:00
samsung ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
seeq
sfc More power management updates for 4.17-rc1 2018-04-11 17:03:20 -07:00
sgi
silan
sis
smsc arch: remove obsolete architecture ports 2018-04-02 20:20:12 -07:00
socionext net: ethernet: ave: add UniPhier PXs3 support 2018-03-26 11:29:10 -04:00
stmicro net: stmmac: dwmac-meson8b: Add support for the Meson8m2 SoC 2018-03-31 22:17:24 -04:00
sun ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
synopsys net: dwc-xlgmac: Get rid of custom hex_dump_to_buffer() 2017-12-21 15:05:33 -05:00
tehuti
ti Merge branch 'akpm' (patches from Andrew) 2018-04-06 14:19:26 -07:00
toshiba
tundra net: tsi108: Use DMA API properly 2018-01-17 18:04:43 -06:00
via
wiznet
xilinx
xircom
xscale
dnet.c
dnet.h
ec_bhf.c ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
ethoc.c
fealnx.c
jme.c net: jme: remove unused initialization of 'rxdesc' 2018-02-01 14:54:28 -05:00
jme.h
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-04-03 14:04:18 -07:00
korina.c
lantiq_etop.c
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-04-03 14:04:18 -07:00
netx-eth.c