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38741 commits

Author SHA1 Message Date
Jessica Clarke
e3394851b5 if_vtbe: Add missing includes to fix build
PR:		254137
Reported by:	Mina Galić <me@igalic.co>
Fixes:		f8bc74e2f4 ("tap: add support for virtio-net offloads")

(cherry picked from commit f2f8405cf6)
2021-03-08 21:04:40 +00:00
Xin LI
e298c1c3c2 arcmsr(4): Fixed no action of hot plugging device on type_F adapter.
Many thanks to Areca for continuing to support FreeBSD.

Submitted by:	黃清隆 <ching2048 areca com tw>
MFC after:	3 days

(cherry picked from commit 5842073a9b)
2021-03-05 17:46:04 -08:00
Peter Grehan
96aabea8bd Import wireguard fixes from pfSense 2.5
Merge the following fixes from https://github.com/pfsense/FreeBSD-src
 1940e7d3  Save	address	of ingress packets to allow wg to work on HA
 8f5531f1  Fix connection to IPv6 endpoint
 825ed9ee  Fix tcpdump for wg IPv6 rx tunnel traffic
 2ec232d3  Fix issue with replying to INITIATION messages in server mode
 ec77593a  Return immediately in wg_init if in DETACH'd state
 0f0dde6f  Remove unnecessary wg debug printf on transmit
 2766dc94  Detect and fix case in wg_init() where sockets weren't cleaned up
 b62cc7ac  Close the UDP tunnel sockets when the interface has been stopped

Obtained from:	pfSense 2.5
Relnotes:	yes
Sponsored by:	Rubicon Communications, LLC ("Netgate")

(cherry picked from commit 95331c228a)
2021-03-05 11:23:14 +10:00
Krzysztof Galazka
2b94bda05a ixl(4): Add ability to control link state on ifconfig down
Add sysctl link_active_on_if_down, which allows user to control
if interface is kept in active state when it is brought
down with ifconfig. Set it to enabled by default to preserve
backwards compatibility.

Reviewed by:	erj
Tested by:	gowtham.kumar.ks@intel.com
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D28028

(cherry picked from commit 21802a127d)
2021-03-04 17:23:19 -08:00
Krzysztof Galazka
b149f7c23d ixl(4): Report RX errors as sum of all RX error counters
HW keeps track of RX errors using several counters, each for
specific type of errors. Report RX errors to OS as sum
of all those counters: CRC errors, illegal bytes, checksum,
length, undersize, fragment, oversize and jabber errors.

There is no HW counter for frames with invalid L3/L4 checksums
so add a SW one.

Also add a "rx_errors" sysctl with a copy of netstat IERRORS
counter value to make it easier accessible from scripts.

Reviewed By:	erj
Tested By:	gowtham.kumar.ks@intel.com
Sponsored By:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D27639

(cherry picked from commit 9f99061ef9)
2021-03-04 17:23:18 -08:00
Piotr Pietruszewski
8fa11f8922 ix(4): Report RX errors as sum of all RX error counters
HW keeps track of RX errors using several counters, each for
specific type of errors. Report RX errors to OS as sum
of all those counters: CRC errors, illegal bytes, checksum,
length, undersize, fragment, oversize and jabber errors.

Also, add new "rx_errs" sysctl in the dev.ix.N.mac_stats tree. This is
to provide an another way to display the sum of RX errors.

Signed-off-by: Piotr Pietruszewski <piotr.pietruszewski@intel.com>

Reviewed By: erj
Tested By: gowtham.kumar.ks@intel.com
Sponsored By: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D27191

(cherry picked from commit afb1aa4e6d)
2021-03-04 17:23:18 -08:00
Krzysztof Galazka
7e166d608e ixl(4): Fix VLAN HW filtering
X700 family of controllers has limited number of available VLAN
HW filters. Driver did not handle properly a case when user
assigned more VLANs to the interface which had all filters
already in use. Fix that by disabling HW filtering when
it is impossible to create filters for all requested VLANs.
Keep track of registered VLANs using bitstring to be able
to re-enable HW filtering when number of requested VLANs
drops below the limit.

Also switch all allocations to use M_IXL malloc type
to ease detecting memory leaks in the driver.

Reviewed by:	erj
Tested by:	gowtham.kumar.ks@intel.com
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D28137

(cherry picked from commit 7d4dceec10)
2021-03-04 17:23:18 -08:00
Alexander Motin
a00bf7d9bb Make DataSN counter of solicited Data-Out local.
DataSN for solicited Data-Out is per-R2T.  Since we handle whole R2T
in one go, we don't need to store it anywhere, especially in global
per-command structure.  This may allow us to handle multiple R2T per
command at once, if we decide, or may be relax locking.

Rename the second use of that field to io_referenced_task_tag.

MFC after:	1 month

(cherry picked from commit 3dd2a7a5ea)
2021-03-04 09:39:43 -05:00
Brett Mastbergen
135fa1610f pwm_backlight: Add MODULE_DEPEND on backlight
Make the pwm_backlight module depend on backlight, so it
has access to the backlight interface symbols.  Otherwise you'll
get an error like:

link_elf: symbol backlight_get_info_desc undefined

Signed-off-by: Brett Mastbergen <brett.mastbergen@gmail.com>
MFC after:	3 days
PR: 		253765
(cherry picked from commit 43d4dfac96)
2021-03-02 14:02:13 +01:00
Warner Losh
b22315c798 cardbus: Be sure to acquire Giant when calling into newbus
Acquire Giant in cardbus_detach_card. This used to be done above us, but no
more.

Tested by: kargl@
MFC After: 3 days

(cherry picked from commit c01da939b0)
2021-03-01 18:07:50 -07:00
Alexander Motin
1f3cff343b cxgb(4): Rework my commit 9dc7c250.
The previous implementation was reported to try to coalesce packets
in situations when it should not, that resulted in assertion later.
This implementation better checks the first packet of the chain for
the coallescing elligibility.

(cherry picked from commit d510bf133d)
2021-02-24 20:40:29 -05:00
Warner Losh
0b90164992 nvme: Make nvme_ctrlr_hw_reset static
nvme_ctrlr_hw_reset is no longer used outside of nvme_ctrlr.c, so
make it static. If we need to change this in the future we can.

(cherry picked from commit dd2516fc07)
2021-02-24 11:10:51 -07:00
Warner Losh
4f4f44f70f nvme: use NVME_GONE rather than hard-coded 0xffffffff
Make it clearer that the value 0xfffffff is being used to detect the device is
gone. We use it other places in the driver for other meanings.

(cherry picked from commit 9600aa31aa)
2021-02-24 11:10:45 -07:00
Warner Losh
ef1f205608 uart: only use MSI on devices that advertise 1 MSI vector
This updates r311987/fb1d9b7f4113d which allowed any number of vectors to be
used. Since we're just attaching one instance, the meaning of more than one
vector is not clear and seems to cause problems. Fall back to old methods for
these cards.

PR: 235016
Submitted by: David Cross

(cherry picked from commit 955b6109bb)
2021-02-24 10:57:07 -07:00
Vladimir Kondratyev
98b3658c4e hkbd: Fix handling of keyboard ErrorRollOver reports
Ignore fantom keyboard state reports entirelly rather than ignore
RollOver states for each key separatelly.  Latter results in spurious
release/push pairs of events on each fantom keyboard state report.

Reported by:	Jan Martin Mikkelsen <janm_AT_transactionware_DOT_com>
Submitted by:	Jan Martin Mikkelsen (initial version)
PR:		253249
MFC after:	1 week

(cherry picked from commit 812c59ed61)
2021-02-24 02:41:49 +03:00
Vladimir Kondratyev
e7211ca03a ukbd: Fix handling of keyboard ErrorRollOver reports
Ignore fantom keyboard state reports entirelly rather than ignore
RollOver states for each key separatelly.  Latter results in spurious
release/push pairs of events on each fantom keyboard state report.

Reported by:	Jan Martin Mikkelsen <janm_AT_transactionware_DOT_com>
Submitted by:	Jan Martin Mikkelsen (initial version)
PR:		253249
MFC after:	1 week

(cherry picked from commit 032d315387)
2021-02-24 02:41:49 +03:00
Vladimir Kondratyev
9262a9ce06 hidraw: Make HIDIOCGRDESCSIZE ioctl return report descriptor size
defined by hardware rather than cached one to match HIDIOCGRDESC ioctl.
This fixes errors reported by hid-tools being run against /dev/hidraw#
device node belonging to driver which overloads report descriptor.

MFC after:	1 week

(cherry picked from commit f988d7fa05)
2021-02-24 02:41:49 +03:00
Alfredo Dal'Ava Junior
07656628fd ofwfb: fix incorrect colors on powerpc* and add new tunable parameters
- Implements little-endian support (powerpc64le)
- Adds 'hw.ofwfb.physaddr' kernel parameter so user can manually
  provide correct address if it's not detected correctly
- Adds 'hw.ofwfb.argb32_pixel' so user can set it manually if
  colors are inverted due to incorrect pixel format (default = 1)
- Automatically selects RGBA32 pixel format if NVidia graphic adapter
  is detected (sets hw.ofwfb.argb32_pixel=0)

Machines equipped with NVidia graphic adapters tend to use RGBA32
pixel format. By default ARGB32 pixel format is used, proved to work
on machines equipped with ATI graphic adapter and the onboard adapter
used on Talos II and Blackbird machines from Raptor Computing Systems.

Original patch developed by bdragon

Reviewed by:	bdragon, luporl
MFC after:	3 days
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D28604

(cherry picked from commit 50b7c1f530)
2021-02-23 21:00:56 -03:00
Mitchell Horne
007101f87d cgem: improve usage of busdma(9) KPI
BUS_DMA_NOCACHE should only be used when one needs to guarantee the
created mapping has uncached memory attributes, usually as a result
of buggy hardware. Normal use cases should pass BUS_DMA_COHERENT, to
create an appropriate mapping based on the flags passed to
bus_dma_tag_create().

This should have no functional change, since the DMA tags in this driver
are created without the BUS_DMA_COHERENT flag.

Reported by:	mmel
Reviewed by:	mmel, Thomas Skibo <thomas-bsd@skibo.net>

(cherry picked from commit 04d2d2d7fd)
2021-02-23 10:31:43 -04:00
Roger Pau Monné
ab3e1bd3c2 xen-blkback: fix leak of grant maps on ring setup failure
Multi page rings are mapped using a single hypercall that gets passed
an array of grants to map. One of the grants in the array failing to
map would lead to the failure of the whole ring setup operation, but
there was no cleanup of the rest of the grant maps in the array that
could have likely been created as a result of the hypercall.

Add proper cleanup on the failure path during ring setup to unmap any
grants that could have been created.

This is part of XSA-361.

Sponsored by:	Citrix Systems R&D

(cherry picked from commit 808d4aad10)
2021-02-22 19:55:14 -05:00
Alexander Motin
49f4b33f9e Exclude reserved iSCSI Initiator Task Tag.
RFC 7143 (11.2.1.8):
   An ITT value of 0xffffffff is reserved and MUST NOT be assigned for a
   task by the initiator.  The only instance in which it may be seen on
   the wire is in a target-initiated NOP-In PDU (Section 11.19) and in
   the initiator response to that PDU, if necessary.

MFC after:	1 month
2021-02-22 19:31:52 -05:00
Alexander Motin
c930816b76 cxgbe(4): Save proper zone index on low memory in refill_fl().
When refill_fl() fails to allocate large (9/16KB) mbuf cluster, it
falls back to safe (4KB) ones.  But it still saved into sd->zidx
the original fl->zidx instead of fl->safe_zidx.  It caused problems
with the later use of that cluster, including memory and/or data
corruption.

While there, make refill_fl() to use the safe zone for all following
clusters for the call, since it is unlikely that large succeed.

MFC after:	3 days
Sponsored by:	iXsystems, Inc.
Reviewed by:	np, jhb
Differential Revision:	https://reviews.freebsd.org/D28716

(cherry picked from commit 294e62bebf)
2021-02-22 15:51:58 -08:00
Michal Krawczyk
e540e45097 MFC 1c808fcd85: Allocate BAR for ENA MSIx vector table
In the new ENA-based instances like c6gn, the vector table moved to a
new PCIe bar - BAR1. Previously it was always located on the BAR0, so
the resources were already allocated together with the registers.

As the FreeBSD isn't doing any resource allocation behind the scenes,
the driver is responsible to allocate them explicitly, before other
parts of the OS (like the PCI code allocating MSIx) will be able to
access them.

To determine dynamically BAR on which the MSIx vector table is present
the pci_msix_table_bar() is being used and the new BAR is allocated if
needed.

Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc

(cherry picked from commit 1c808fcd85)
2021-02-22 16:59:42 +01:00
Ravi Pokala
ea5a304c73 nvdimm(4): Export NVDIMM health flags via sysctl
The ACPI NFIT specification defines a set of "NVDIMM State Flags". These
flags are already reported by `acpidump -t', but this change makes them
available on a per-device basis, in a format that is more easily parsed.

To simplify this, introduce acpi_nfit_get_memory_maps_by_dimm(), which
locates the (ACPI_NFIT_MEMORY_MAP)s associated with a given
(nfit_handle_t).

Reviewed by:	mav, cem
Tested by:	mav, rpokala (version for stable/12)
MFC after:	3 days
Sponsored by:	Panasas
Differential Revision:	https://reviews.freebsd.org/D28700

(cherry picked from commit bdde49b7c7)
2021-02-20 16:47:55 -08:00
Hans Petter Selasky
c558999977 MFC 12148d4300:
Fix for locking order reversal in USB audio driver, when using mmap().

Locking the second lock which causes the LOR, can be skipped because
the code updating the shared variables is always executing from the
same USB thread.

lock order reversal:
  1st 0xfffff80005cc3840 pcm7:play:dsp7.p0 (pcm play channel, sleep mutex)
@ usb_transfer.c:2342
  2nd 0xfffff80005cc3860 pcm7:record:dsp7.r0 (pcm record channel, sleep mutex)
@ uaudio.c:2317

lock order pcm record channel -> pcm play channel established at:
witness_checkorder+0x461
__mtx_lock_flags+0x98
dsp_mmap_single+0x151
vm_mmap_cdev+0x65
devfs_mmap_f+0x143
kern_mmap_req+0x594
sys_mmap+0x46
amd64_syscall+0x12e
fast_syscall_common+0xf8

lock order pcm play channel -> pcm record channel attempted at:
witness_checkorder+0xd82
__mtx_lock_flags+0x98
uaudio_chan_play_callback+0xeb
usbd_callback_wrapper+0x7ec
usb_command_wrapper+0x7e
usb_callback_proc+0x8e
usb_process+0xf3
fork_exit+0x80
fork_trampoline+0xe

Found by:	Stefan Ehmann <shoesoft@gmx.net>
Sponsored by:	Mellanox Technologies // NVIDIA Networking

(cherry picked from commit 12148d4300)
2021-02-18 09:41:50 +01:00
Sai Rajesh Tallamraju
859d72fa65 iflib: Free resources in a consistent order during detach
Memory and PCI resources are freed with no particular order.  This could
cause use-after-frees when detaching following a failed attach.  For
instance, iflib_tx_structures_free() frees ctx->ifc_txqs[] but
iflib_tqg_detach() attempts to access this array. Similarly, adapter
queues gets freed by IFDI_QUEUES_FREE() but IFDI_DETACH() attempts to
access adapter queues to free PCI resources.

Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D27634

(cherry picked from commit 38bfc6dee3)
2021-02-15 14:12:55 -05:00
Mark Johnston
03bb5b837d mlx4, mthca: Silence warnings about no-op alignment operations
Since commit 8fa6abb6f4 ("Expose clang's alignment builtins and use
them for roundup2/rounddown2"), clang emits warnings for several
alignment operations in these drivers because the operation is a no-op.
The compiler is arguably being too strict here, but in the meantime
let's silence the warnings by conditionally compiling the alignment
operations.

Reviewed by:	arichardson, hselasky
Differential Revision:	https://reviews.freebsd.org/D28576

(cherry picked from commit 29ed53850e)
2021-02-15 14:12:10 -05:00
Toomas Soome
76702e90d0 vt: terminal size can grow too big with small font
vt is using static buffers for on screen data, the buffer size is
calculated based on maximum supported screen size and 8x16 font.

When using hi-res graphics and very smaller than 8x16 font, we
need to be careful not to overflow static buffers in vt.

Testing: I did test by building smaller buffers than vt currently is using,
royger was testing on actual 4k capable hardware.

MFC after: 1 week
Tested by: royger

(cherry-picked from 32bf05ad89)
2021-02-14 23:37:45 +02:00
Michal Meloun
e8dfdf40be dwmmc: Multiple busdma fixes.
- limit maximum segment size to 2048 bytes.  Although dwmmc supports a buffer
  fragment with a maximum length of 4095 bytes, use the nearest lower power
  of two as the maximum fragment size. Otherwise, busdma create excessive
  buffer fragments.
- fix off by one error in computation of the maximum data transfer length.
- in addition, reserve two DMA descriptors that can be used by busdma
  bouncing. The beginning or end of the buffer can be misaligned.
- Don’t ignore errors passed to bus_dmamap_load() callback function.
- In theory, a DMA engine may be running at time when next dma descriptor is
  constructed. Create a full DMA descriptor before OWN bit is set.

MFC after:	2 weeks

(cherry picked from commit 8727c174b0)
2021-02-11 16:07:16 +01:00
Warner Losh
0dc5c9467b hid: bump HID_ITEM_MAXUSAGES to 8
My YOGA requires a minimum of 7 to parse w/o an error. Since the memory savings
are trivial and the yoga a popular system, bump the default up to 8. There's no
API/ABI issues in doing this. This hid_item struct isn't exported to userland
and the one libusbhid has is different and only shares a name...

MFC After: 3 days
Reviewed by: wulf@
Differential Revision: https://reviews.freebsd.org/D28543

(cherry picked from commit db2f512381)
2021-02-10 22:13:25 -07:00
Warner Losh
a60c5de933 acpi: limit the AMDI0020/AMDI0010 workaround to an option
It appears that production versions of EPYC firmware get the _STA method right
for these nodes. In fact, this workaround breaks on production hardware by
including too many uart nodes. This work around was for pre-release hardware
that wound up not having a large deployment. Move this work around to a kernel
option since the machines that needed it have been powered off and are difficult
to resurrect. Should there be a more significant deployment than is understood,
we can restrict it based on smbios strings.

Discussed with: mmacy@, seanc@, jhb@
MFC After: 3 days

(cherry picked from commit 35af933173)
2021-02-10 22:13:04 -07:00
Gleb Smirnoff
97ded49cae Catch up with 6edfd179c8: mechanically rename IFCAP_NOMAP to IFCAP_MEXTPG.
Originally IFCAP_NOMAP meant that the mbuf has external storage pointer
that points to unmapped address.  Then, this was extended to array of
such pointers.  Then, such mbufs were augmented with header/trailer.
Basically, extended mbufs are extended, and set of features is subject
to change.  The new name should be generic enough to avoid further
renaming.

(cherry-picked from commit 3f43ada98c)
2021-02-08 14:33:35 -08:00
Peter Grehan
6136a10e35 Always clamp curve25519 keys prior to use.
This fixes an issue where a private key	contained bits that should
have been cleared by the clamping process, but were passed through
to the scalar multiplication routine and resulted in an	invalid
public key.

Issue diagnosed	(and an	initial	fix proposed) by shamaz.mazum in
PR 252894.

This fix suggested by Jason Donenfeld.

PR:		252894
Reported by:	shamaz.mazum

(cherry picked from commit 5aaea4b99e)
2021-02-06 14:01:18 +10:00
Alfredo Dal'Ava Junior
6bf9668d9d mrsas: unbreak i386 build
Fix build regression introduced by
e34a057ca6

Reviewed by:	jhibbits
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D28494

(cherry picked from commit 59fffbcf46)
2021-02-05 16:50:21 -03:00
Doug Ambrisko
1fb5b28604 VMD support for new devices.
Add support for some more Intel VMD controllers.  Some of the
newer controller have a sparce bus space that can be figured
out by probing the HW.  This gives the starting bus number.
When reading the PCI config. space behind the VMD controller,
the offset of the starting bus needs to be subtracted from
the bus being read.

Fixed a bug in which in which not all of the devices
directly attached to the VMD controller would be probed.
On my initial test HW, a switch was found at bus 0, slot 0
and function 0.  All of the NVME drives were behind that
switch.  Now scan for all slots and functions attached to
bus 0.  If a something was found then run attach after the
scan.  On detach also go through all slots and functions
on bus 0.

Tested with device ID's: 0x201d & 0x9a0b

Tested by:	nc@
MFC:		5c689e2136
PR:		252253

(cherry picked from commit 0c852bb9b9)
2021-02-04 10:04:09 -08:00
Navdeep Parhar
397aaa3bcc cxgbe(4): Fixes to tx coalescing.
- The behavior implemented in r362905 resulted in delayed transmission
  of packets in some cases, causing performance issues.  Use a different
  heuristic to predict tx requests.

- Add a tunable/sysctl (hw.cxgbe.tx_coalesce) to disable tx coalescing
  entirely.  It can be changed at any time.  There is no change in
  default behavior.

(cherry picked from commit 3447df8bc5)
2021-02-04 09:43:36 -08:00
Alfredo Dal'Ava Junior
d0982de778 [POWERPC64BE] mrsas: add big-endian support
Add endiannes conversions in order to support big-endian platforms

Submitted by:	Andre Fernando da Silva <andre.silva@eldorado.org.br>
Reviewed by:	luporl, alfredo, kadesai (on email)
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D26531
2021-02-04 02:58:19 -03:00
Mark Johnston
1996360d73 qat: Add support for separate AAD and output buffers
Sponsored by:	Rubicon Communications, LLC ("Netgate")

(cherry picked from commit bd674d8b1f)
2021-02-03 09:37:41 -05:00
Alexander Motin
c738bfc506 cxgb(4): Remove assumption of physically contiguous mbufs.
Investigation of iSCSI target data corruption reports brought me to
discovery that cxgb(4) expects mbufs to be physically contiguous, that
is not true after I've started using m_extaddref() in software iSCSI
for large zero-copy transmissions.  In case of fragmented memory the
driver transmitted garbage from pages following the first one due to
simple use of pmap_kextract() for the first pointer instead of proper
bus_dmamap_load_mbuf_sg().  Seems like it was done as some optimization
many years ago, and at very least it is wrong in a world of IOMMUs.

This patch just removes that optimization, plus limits packet coalescing
for mbufs crossing page boundary, also depending on assumption of one
segment per packet.

Sponsored by:	iXsystems, Inc.

(cherry picked from commit 9dc7c250b8)
2021-02-02 23:08:43 -05:00
Toomas Soome
b79f2bc6c5 vt: panic while changing vt font
Set refcount for loader provided font to 1 to prevent this font
from being released (so we can reset to default).

As we get started with no memory allocator, we set up static font data
for font passed by loader (if there is any). At this time, we also must
set refcount 1, and refcount will get incremented in cnprobe() callback.

At some point the memory allocator will be available, and we will set up
properly allocated font data, but we should not disturb the refcount.

PR: 252833
PR: 253147

(cherry picked and squashed 93ebd6307e and
1912d2b15e)
2021-02-02 12:11:38 +02:00
Hans Petter Selasky
6bc1f84255 MFC 064009e794:
Add support for enabling and disabling IFCAP_VLAN_HWTSO via
ifconfig(8) in mlx5en(4).

Sponsored by:	Mellanox Technologies // NVIDIA Networking

(cherry picked from commit 064009e794)
2021-02-01 10:25:16 +01:00
Hans Petter Selasky
22aca67268 MFC b8051298b0:
Fix missing value in uar_page field for ratelimit in mlx5en(4).
This is a regression issue after the new UAR API was introduced
by f8f5b459d2 .

Sponsored by:	Mellanox Technologies // NVIDIA Networking

(cherry picked from commit b8051298b0)
2021-02-01 10:23:25 +01:00
Alexander Motin
c060c19240 Add missing newlines.
(cherry picked from commit 8fee65d0c7)
2021-01-31 12:06:22 -05:00
Alexander Motin
38da7d23b6 Make software iSCSI more configurable.
Move software iSCSI tunables/sysctls into kern.icl.soft subtree.
Replace several hardcoded length constants there with variables.

While there, stretch the limits to better match Linux' open-iscsi
and our own initiator with new MAXPHYS of 1MB.  Our CTL target is
also optimized for up to 1MB I/Os, so there is also a match now.
For Windows 10 and VMware 6.7 initiators at default settings it
should make no change, since previous limits were sufficient there.

Tests of QD1 1MB writes from FreeBSD over 10GigE link show throughput
increase by 29% on idle connection and 132% with concurrent QD8 reads.

Sponsored by:	iXsystems, Inc.

(cherry picked from commit b75168ed24)
2021-01-31 12:05:12 -05:00
Vincenzo Maffione
e4c81e46ac netmap: simplify parameter passing
Changes imported from the netmap github.

(cherry picked from commit ee0005f11f)
2021-01-31 08:53:06 +00:00
Vincenzo Maffione
7754ef5a37 axgbe: fix some link related issues
By default, axgbe driver does a receiver reset after predefined number
of retries for the link to come up. However, this receiver reset
doesn't always suffice, due to an hardware issue.
In that case, as a workaround, a complete phy reset is necessary.
This patch introduces a sysctl that can be set to 1 to let the driver
reset the phy completely, rather than just doing receiver reset.
The workaround will be removed once the issue is fixed by means
of firmware update.

This patch also fixes the handling of the direct attach cables
properly.

Submitted by:	rajesh1.kumar_amd.com
Differential Revision:	https://reviews.freebsd.org/D28266

(cherry picked from commit bfd75d4557)
2021-01-31 08:47:36 +00:00
Mark Johnston
ef6fb23322 safexcel: Disallow unsupported buffer layouts
Sponsored by:	Rubicon Communications, LLC ("Netgate")

(cherry picked from commit 2fccd4f9b6)
2021-01-29 19:39:15 -05:00
Mark Johnston
19d2d50e43 Revert "Define PNP info after defining driver modules"
This reverts commit aa37baf3d7.

The reverted commit was motivated by a problem observed on stable/12,
but it turns out that a better solution was committed in r348309 but not
MFCed.  So, revert this change since it is unnecessary and not really
correct: it assumes that the order in which module metadata records is
defined determines their order in the output linker set.  While this
seems to hold in my testing, it is not guaranteed.

Reported by:	cem
Discussed with:	imp

(cherry picked from commit 519b64e27f)
2021-01-29 19:39:14 -05:00
Marius Strobl
3b433ed765 mmcsd(4): properly set BIO error when partition switching fails
While at it, remove redundant braces and goto in mmcsd_task().

Reported by:	Coverity
CID:		1419639
2021-01-22 00:18:40 +01:00
Marius Strobl
2dcbf0462e sym(4): handle mixed tagged/untagged commands gracefully
Handle the case of a tagged command arriving when there's an untagged
one still outstanding gracefully instead of panicing.

While at it:
- Replace fancy arithmetics with a simple assignment as busy_itl can
  only ever be either 0 or 1.
- Fix a comment typo in sym_free_ccb().
2021-01-22 00:18:39 +01:00