openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/drivers
History
Jacob Keller 5b64347930 i40e: add helper conversion function for link_speed 
We introduced the virtchnl interface in order to have an interface for
talking to a virtual device driver which was host-driver agnostic. This
interface has its own definitions, including one for link speed.

The host driver has to talk to the virtchnl interface using these new
definitions in order to remain compatible. Today, the i40e link_speed
enumerations are value-exact matches for the virtchnl interface, so it
was originally decided to simply use a typecast.

However, this is unsafe, and makes it easier for future drivers to
continue this unsafe practice. There is nothing guaranteeing these
values are exact, and the type-cast would hide any compiler warning
which indicates the problem.

Rather than rely on this type cast, introduce a helper function which
can convert the AdminQ link speed definition into a virtchnl
definition. This can then be used by host driver implementations in
order to safely convert to the interface recognized by the virtual
functions.

If the link speed is not able to be represented by the virtchnl
definitions we'll report UNKNOWN which is the safest result.

This will ensure that should the driver specific link_speeds actual bit
definitions change, we do not report them incorrectly according to the
VF.

Additionally, this provides a better pattern for future drivers to copy,
as it is more likely a future device may not use the exact same bit-wise
definition as the current virtchnl interface.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
 		2018-01-10 12:41:21 -08:00
..
accessibility License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acpi Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm 2017-12-23 13:47:22 -08:00
amba A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
android binder: fix proc->files use-after-free 2017-12-18 15:47:12 +01:00
ata libata: sata_down_spd_limit should return if driver has not recorded sstatus speed 2017-12-04 13:57:03 -08:00
atm atm: eni: fix several indentation issues 2017-11-30 09:26:32 -05:00
auxdisplay auxdisplay: img-ascii-lcd: Only build on archs that have IOMEM 2017-11-27 12:36:45 -08:00
base Driver core fixes for 4.15-rc6 2017-12-31 10:50:05 -08:00
bcma bcma: Adjust block comment 2017-12-07 15:33:02 +02:00
block null_blk: unalign call_single_data 2017-12-20 13:16:33 -07:00
bluetooth Bluetooth: Fix a possible sleep-in-atomic bug in bluecard_write_wakeup 2017-12-13 14:38:59 +01:00
bus Allwinner fixes for 4.15 2018-01-04 17:06:25 +01:00
cdrom Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
char The big changes for IPMI that just went in had a few problems. These 2017-12-11 17:01:59 -08:00
clk clk: use atomic runtime pm api in clk_core_is_enabled 2017-12-26 17:34:03 -08:00
clocksource - final batch of "non trivial" timer conversions (multi-tree dependencies, 2017-11-23 16:29:05 +01:00
connector drivers, connector: convert cn_callback_entry.refcnt from atomic_t to refcount_t 2017-10-22 02:22:39 +01:00
cpufreq cpufreq: governor: Ensure sufficiently large sampling intervals 2017-12-18 12:09:39 +01:00
cpuidle powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
crypto crypto: inside-secure - do not use areq->result for partial results 2017-12-22 19:48:01 +11:00
dax device-dax: implement ->split() to catch invalid munmap attempts 2017-11-29 18:40:42 -08:00
dca
…
devfreq Merge branches 'pm-devfreq' and 'pm-tools' 2017-11-13 01:41:39 +01:00
dio License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dma dmaengine: fsl-edma: disable clks on all error paths 2017-12-15 09:53:04 +05:30
dma-buf Tracing updates for 4.15: 2017-11-17 14:58:01 -08:00
edac Modules updates for v4.15 2017-11-15 13:46:33 -08:00
eisa License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
extcon USB/PHY patches for 4.15-rc1 2017-11-13 21:14:07 -08:00
firewire Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
firmware efi/capsule-loader: Reinstate virtual capsule mapping 2018-01-03 13:54:31 +01:00
fmc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fpga Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
fsi
…
gpio genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
gpu drm/i915 fixes for v4.15-rc7 2018-01-05 09:25:01 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2017-12-30 10:16:51 -08:00
hsi HSI changes for the v4.15 series 2017-11-15 13:35:43 -08:00
hv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
hwmon hwmon: Deal with errors from the thermal subsystem 2017-12-26 11:53:24 -08:00
hwspinlock hwspinlock update for v4.15 2017-11-17 20:16:20 -08:00
hwtracing tracing: Pass export pointer as argument to ->write() 2017-12-04 07:14:30 -05:00
i2c i2c: piix4: Fix port number check on release 2017-12-12 23:27:04 +01:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2017-11-19 08:04:41 -10:00
idle Merge branch 'pm-cpuidle' 2017-11-13 01:34:14 +01:00
iio iio: health: max30102: Temperature should be in milli Celsius 2017-12-02 11:15:14 +00:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-01-05 16:45:06 -08:00
iommu iommu/arm-smmu-v3: Cope with duplicated Stream IDs 2018-01-02 16:45:51 +00:00
ipack
…
irqchip genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
isdn treewide: setup_timer() -> timer_setup() (2 field) 2017-11-21 15:57:09 -08:00
leds leds: core: Fix regression caused by commit 2b83ff96f5 2018-01-07 13:27:07 +01:00
lightnvm lightnvm: Convert timers to use timer_setup() 2017-11-21 15:46:44 -08:00
macintosh Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
mailbox Change to POLL api and fixes for FlexRM and OMAP driver 2017-11-15 13:39:18 -08:00
mcb License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
md - Fix a particularly nasty DM core bug in a 4.15 refcount_t conversion. 2017-12-15 12:53:37 -08:00
media media fixes for v4.15-rc3 2017-12-08 13:18:47 -08:00
memory ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
memstick treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
message Modules updates for v4.15 2017-11-15 13:46:33 -08:00
mfd mfd: rtsx: Release IRQ during shutdown 2018-01-05 11:14:57 +00:00
misc Merge branch 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-12-17 13:54:31 -08:00
mmc mmc: core: apply NO_CMD23 quirk to some specific cards 2017-12-11 13:43:27 +01:00
mtd mtd: nand: pxa3xx: Fix READOOB implementation 2018-01-06 23:06:58 +01:00
mux
…
net i40e: add helper conversion function for link_speed 2018-01-10 12:41:21 -08:00
nfc treewide: setup_timer() -> timer_setup() (2 field) 2017-11-21 15:57:09 -08:00
ntb treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
nubus m68k updates for 4.15 2017-11-13 12:10:24 -08:00
nvdimm libnvdimm, btt: Fix an incompatibility in the log layout 2017-12-21 14:59:27 -08:00
nvme nvme: setup streams after initializing namespace head 2017-12-15 15:18:07 +01:00
nvmem nvmem: meson-mx-efuse: fix reading from an offset other than 0 2017-12-23 16:46:23 +01:00
of phylib: rename reset-(post-)delay-us to reset-(de)assert-us 2017-12-27 11:06:50 -05:00
opp
…
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
parisc parisc: Show unhashed EISA EEPROM address 2018-01-02 21:01:02 +01:00
parport Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
pci Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
pcmcia drivers/pcmcia/sa1111_badge4.c: avoid unused function warning 2017-11-17 16:10:04 -08:00
perf arm64 updates for 4.15 2017-11-15 10:56:56 -08:00
phy phy: rcar-gen3-usb2: select USB_COMMON 2017-12-15 16:00:41 +05:30
pinctrl genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
platform platform/x86: wmi: Call acpi_wmi_init() later 2018-01-08 10:47:48 -08:00
pnp License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
power power supply and reset changes for the v4.15 series 2017-11-15 13:37:15 -08:00
powercap
…
pps treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
ps3
…
ptp xen: features and fixes for v4.15-rc1 2017-11-16 13:06:27 -08:00
pwm pwm: Changes for v4.15-rc1 2017-11-22 21:09:18 -10:00
rapidio Merge branch 'akpm' (patches from Andrew) 2017-11-17 16:56:17 -08:00
ras Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
regulator - New Drivers 2017-11-16 09:15:57 -08:00
remoteproc remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
reset ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
rpmsg rpmsg updates for v4.15 2017-11-17 20:12:08 -08:00
rtc Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-25 08:37:16 -10:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
sbus Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2017-11-17 20:21:44 -08:00
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
sfi
…
sh A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
sn
…
soc meson-gx-socinfo: Fix package id parsing 2017-11-30 15:29:44 -08:00
spi Merge remote-tracking branches 'spi/fix/armada', 'spi/fix/atmel', 'spi/fix/doc', 'spi/fix/imx', 'spi/fix/rspi', 'spi/fix/sun4i' and 'spi/fix/xilinx' into spi-linus 2017-12-19 11:07:00 +00:00
spmi
…
ssb ssb: make SSB a menuconfig to ease disabling it all 2017-12-07 15:44:47 +02:00
staging staging: android: ion: Fix dma direction for dma_sync_sg_for_cpu/device 2017-12-19 15:53:39 +01:00
target block: fix blk_rq_append_bio 2017-12-18 13:55:43 -07:00
tc
…
tee optee: fix invalid of_node_put() in optee_driver_init() 2017-11-29 10:24:57 +01:00
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2017-11-17 14:31:27 -08:00
thunderbolt thunderbolt: Mask ring interrupt properly when polling starts 2017-12-16 16:37:51 +01:00
tty n_tty: fix EXTPROC vs ICANON interaction with TIOCINQ (aka FIONREAD) 2017-12-21 11:19:22 +01:00
uio License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
usb usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201 2017-12-27 15:24:27 +01:00
uwb treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
vfio VFIO Updates for Linux v4.15 2017-11-14 16:47:47 -08:00
vhost vhost_net: batch used ring update in rx 2018-01-10 15:04:30 -05:00
video fbdev changes for v4.15: 2017-11-20 21:50:24 -10:00
virt
…
virtio virtio_mmio: fix devm cleanup 2017-12-14 21:01:40 +02:00
vlynq
…
vme Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
w1 Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
watchdog treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
xen xen: fix for 4.15-rc7 2018-01-05 12:15:12 -08:00
zorro License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig Merge branches 'pm-cpufreq-sched' and 'pm-opp' 2017-11-13 01:40:52 +01:00
Makefile usb: build drivers/usb/common/ when USB_SUPPORT is set 2017-11-28 15:17:49 +01:00