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b2dfdc966b
linux/drivers
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Satish Kharat b2dfdc966b enic: add V2 VF probe with admin channel and PF registration 
When a V2 SR-IOV VF probes, initialize the MBOX protocol, open the
admin channel, perform the capability check with the PF, and register
with the PF. This establishes the PF-VF communication path that the PF
uses to send link state notifications.

The admin channel and MBOX registration happen after enic_dev_init()
(which discovers admin channel resources) and before register_netdev()
so the VF is fully initialized before the interface is visible to
userspace.

A V2 VF whose firmware did not provision admin WQ/RQ/CQ resources
fails probe with -ENODEV from enic_admin_channel_open(); the admin
channel is a hard requirement for V2 VFs.

enic_mbox_init() installs the receive handler and resets the message
sequence number before enic_admin_channel_open() unmasks the admin
interrupt, so a completion can never arrive before the handler is in
place.

On remove, the VF unregisters from the PF and closes its admin channel
before tearing down data path resources.

V2 VFs are not provisioned with an RES_TYPE_SRIOV_INTR resource by
firmware, so bypass that check in the admin channel capability
detection for V2 VFs. The PF still requires this resource.

The admin MSI-X vector reserved by enic_set_intr_mode()
is used for the admin channel interrupt.
enic_adjust_resources() ensures the reserved slot is within
intr_avail bounds even at maximum queue configurations.  The
admin INTR uses a RES_TYPE_INTR_CTRL slot shared with the
data path.

Signed-off-by: Satish Kharat <satishkh@cisco.com>
Link: https://patch.msgid.link/20260812-enic-sriov-v2-admin-channel-v2-v13-10-b3809e448aba@cisco.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-17 17:48:45 -07:00
..
accel accel/amdxdna: Fix locally exploitable BUG_ON in amdxdna_insert_pages() 2026-07-31 22:40:29 -07:00
accessibility
acpi ACPI: CPPC: Skip writes to unsupported performance controls 2026-07-27 15:18:50 +02:00
amba amba: use generic driver_override infrastructure 2026-05-30 22:25:23 +02:00
android rust_binder: do not query current thread for all ioctls 2026-07-31 11:00:42 +02:00
ata ata fixes for 7.2-rc7 2026-08-07 16:32:54 -07:00
atm atm: remove unused ATM PHY operations 2026-06-16 08:53:53 -07:00
auxdisplay Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
base regcache: Sort the local copy of an unsorted reg_defaults array 2026-08-06 13:01:39 +01:00
bcma
block block-7.2-20260731 2026-07-31 16:42:34 -07:00
bluetooth Bluetooth: btmtksdio: fix usage_count leak when autosuspend_delay is negative 2026-08-07 15:40:27 -04:00
bus Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
cache Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
cdrom cdrom: fix stack out-of-bounds read in CDROMVOLCTRL 2026-07-20 21:54:52 -06:00
cdx Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
char tpm: Make the TPM character devices non-seekable 2026-07-12 12:52:34 -07:00
clk Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
clocksource A series of updates for the VDSO: 2026-06-15 13:57:13 +05:30
comedi comedi: comedi_parport: deal with premature interrupt 2026-07-17 14:50:35 +02:00
connector
counter Counter fixes for 7.2 2026-08-06 11:03:41 +02:00
cpufreq cpufreq: powernow-k8: Fix possible memory leak in powernowk8_cpu_init() 2026-07-27 16:58:45 +02:00
cpuidle cpuidle: Allow exit latency to exceed target residency 2026-06-23 14:00:29 +02:00
crypto This push contains the following changes: 2026-08-10 08:36:22 -07:00
cxl cxl: Support dpa without a mailbox 2026-06-29 10:55:47 -07:00
dax mm.git review status for mm-hotfixes-stable..mm-stable 2026-06-19 10:14:34 -07:00
dca
devfreq Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
dibs net/dibs: Correct freeing of dmb_clientid_arr 2026-08-12 17:08:05 -07:00
dio
dma dmaengine fixes for v7.2 2026-08-02 09:19:40 -07:00
dma-buf udmabuf: Ensure to perform cache synchronisation in begin_cpu_udmabuf() 2026-07-10 16:26:39 -07:00
dpll dpll: use pin owner's dpll ref for pin-level attribute setting 2026-08-11 11:30:07 +02:00
edac Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
eisa
extcon Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
firewire firewire: ohci: fix NULL pointer dereference in ar_context_release 2026-08-13 21:02:23 +09:00
firmware Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-07-30 12:53:19 -07:00
fpga Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
fsi Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
fwctl
gnss
gpib Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
gpio gpio: sloppy-logic-analyzer: fix use-after-free via debugfs trigger on unbind 2026-08-10 12:49:04 +02:00
gpu amd-drm-fixes-7.2-2026-08-06: 2026-08-07 21:01:05 +10:00
greybus
hid Android/IIO bugfixes for 7.2-rc3 2026-07-12 12:37:28 -07:00
hsi Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
hte Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
hv mshv_vtl: bounds-check cpu index in vtl mmap fault handler 2026-07-31 20:02:04 +00:00
hwmon hwmon fixes for v7.2-rc7 2026-08-07 17:14:05 -07:00
hwspinlock hwspinlock: qcom: avoid uninitialized struct members 2026-06-08 21:51:12 -05:00
hwtracing intel_th: fix MSC output device reference leak 2026-07-17 14:52:08 +02:00
i2c i2c: qcom-cci: drop custom suspend/resume and rely on runtime PM helpers 2026-07-28 23:34:16 +02:00
i3c i3c: mipi-i3c-hci: Use named initializers for platform_device_id's .driver_data 2026-06-16 23:19:45 +02:00
idle x86/msr updates for v7.2: 2026-06-15 15:08:14 +05:30
iio Android/IIO bugfixes for 7.2-rc3 2026-07-12 12:37:28 -07:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-07-23 14:07:40 -07:00
input Input updates for v7.2-rc6 2026-08-08 07:09:35 -07:00
interconnect Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
iommu iommufd v7.2 first rc pull request 2026-07-30 15:12:31 -07:00
ipack
irqchip Misc irqchip driver fixes: 2026-07-05 05:29:41 -10:00
leds Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
macintosh sched/cputime: Remove superfluous and error prone kcpustat_field() parameter 2026-06-02 21:27:25 +02:00
mailbox Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
mcb
md dm thin metadata: fix superblock refcount leak on snapshot shadow failure 2026-07-11 15:18:51 +02:00
media Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
memory Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
memstick memstick: ms_block: reject a card that reports too many blocks 2026-07-06 17:09:30 +02:00
message
mfd Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
misc mei: pull kvfree out of spinlock 2026-07-31 13:28:05 +02:00
mmc Mostly driver changes this time: 2026-07-27 16:03:40 -07:00
most
mtd Among the most important fixes that we have here, there are: 2026-07-17 09:30:17 -07:00
mux Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
net enic: add V2 VF probe with admin channel and PF registration 2026-08-17 17:48:45 -07:00
nfc Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
ntb NTB updates include an EPF bug fix to prevent an invalid unmap during 2026-06-28 07:46:12 -07:00
nubus
nvdimm Updates for the 7.2 release 2026-06-18 16:27:58 -07:00
nvme block-7.2-20260625 2026-06-25 09:56:47 -07:00
nvmem nvmem: layouts: Add fixed-layout driver 2026-07-31 11:00:13 +02:00
of Devicetree fixes for v7.2, part 1: 2026-07-31 14:03:19 -07:00
opp OPP: of: Fix potential memory leak in opp_parse_supplies() 2026-05-20 13:23:37 +05:30
parisc
parport parport: Fix race between port and client registration 2026-05-22 12:19:02 +02:00
pci Quite a bunch more work, of note: 2026-08-06 12:39:11 -07:00
pcmcia
peci
perf Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
phy phy fixes for 7.2 2026-08-02 09:16:32 -07:00
pinctrl Qualcomm pin control fixes for v7.2-rc6 2026-08-03 09:54:28 +02:00
platform platform-drivers-x86 for v7.2-4 2026-07-28 13:45:01 -07:00
pmdomain pmdomain: mediatek: Fix possible nullptr KP in HWV cleanup/on-check 2026-07-13 12:42:17 +02:00
pnp Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
power Power Supply Fixes for 7.2 cycle 2026-07-30 16:50:17 -07:00
powercap powercap: intel_rapl: Use sysfs_emit() in cpumask_show() 2026-06-01 19:55:32 +02:00
pps Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
ps3
ptp net: phy: dp83640: fix per-bus clock lifetime 2026-08-13 17:30:15 -07:00
pwm Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
rapidio mm.git review status for mm-hotfixes-stable..mm-nonmm-stable 2026-06-21 13:20:19 -07:00
ras - Fix a malformed Kconfig default for the AMD Address Translation Library 2026-06-16 05:31:01 +05:30
regulator regulator: core: clamp voltage constraints before applying apply_uV 2026-07-21 22:35:08 +01:00
remoteproc remoteproc: qcom: pas: Drop start/stop completion from struct qcom_pas 2026-06-08 21:53:51 -05:00
resctrl arm_mpam: guard MBWU state before adding it to garbage 2026-07-16 14:46:27 +01:00
reset Reset controller fixes for v7.2 2026-07-10 14:15:39 +02:00
rpmsg rpmsg update for v7.2 2026-06-20 23:31:15 -07:00
rtc Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-08-13 11:00:14 -07:00
sbus
scsi SCSI fixes on 20260812 2026-08-12 08:03:31 -07:00
sh
siox Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
slimbus slimbus: qcom-ngd-ctrl: Avoid ABBA on tx_lock/ctrl->lock 2026-06-05 17:19:51 +02:00
soc aspeed: First batch of driver fixes for 7.2 2026-08-04 10:57:08 +02:00
soundwire ASoC/soundwire: Intel: reset the PCMSyCM registers in hda_sdw_bpt_close 2026-07-31 13:23:10 +01:00
spi spi: Few fix/improvement for spi-nxp-fspi 2026-07-30 13:13:51 +01:00
spmi Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
ssb
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-08-13 11:00:14 -07:00
target scsi: target: Clear cmd_cnt when initial counter enrollment fails 2026-07-28 21:52:09 -04:00
tc
tee soc: drivers for 7.2 2026-06-17 11:21:40 -07:00
thermal Revert "thermal/drivers/hwmon: Cleanup coding style a bit" 2026-08-05 13:25:55 +02:00
thunderbolt thunderbolt: Initialize ->domain_released completion before it is being used 2026-07-30 06:47:32 +02:00
tty serial: amba-pl011: synchronize DMA teardown 2026-08-03 16:31:22 +02:00
ufs scsi: core: pair EH runtime PM get and put 2026-08-07 11:00:49 -04:00
uio uio_hv_generic: Bind to FCopy device by default 2026-07-17 14:50:09 +02:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-08-13 11:00:14 -07:00
vdpa vdpa/mlx5: Fix buffer length in create_direct_keys() 2026-08-03 15:21:54 -04:00
vfio vfio/pci: Expose latched module parameter policy in debugfs 2026-06-29 14:26:31 -06:00
vhost vhost-net: wake queue of tun/tap after ptr_ring consume 2026-08-07 17:29:15 -07:00
video fbdev: bitblit: bound-check glyph index in bit_cursor() 2026-08-08 08:08:58 +02:00
virt drivers/virt: pkvm: Fix end calculation in mmio_guard_ioremap_hook() 2026-07-17 18:49:12 +01:00
virtio mm: page_reporting: allow driver to set batch capacity 2026-07-09 15:48:56 -07:00
w1 Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
watchdog watchdog: at91sam9_wdt: prevent timer rearm during teardown 2026-08-06 14:23:55 -07:00
xen SCSI fixes on 20260718 2026-07-18 12:36:19 -07:00
zorro
Kconfig
Makefile