Commit Graph

112 Commits

Author SHA1 Message Date
erj
e437b09b08 ixl: Fix panic caused by bug exposed by r344062
Don't use a struct if_irq for IFLIB_INTR_IOV type interrupts since that results
in get_core_offset() being called on them, and get_core_offset() doesn't
handle IFLIB_INTR_IOV type interrupts, which results in an assert() being triggered
in iflib_irq_set_affinity().

PR:		235730
Reported by:	Jeffrey Pieper <jeffrey.e.pieper@intel.com>
MFC after:	1 day
Sponsored by:	Intel Corporation
2019-02-14 18:02:37 +00:00
marius
34990ebfb9 - Stop iflib(4) from leaking MSI messages on detachment by calling
bus_teardown_intr(9) before pci_release_msi(9).
- Ensure that iflib(4) and associated drivers pass correct RIDs to
  bus_release_resource(9) by obtaining the RIDs via rman_get_rid(9)
  on the corresponding resources instead of using the RIDs initially
  passed to bus_alloc_resource_any(9) as the latter function may
  change those RIDs. Solely em(4) for the ioport resource (but not
  others) and bnxt(4) were using the correct RIDs by caching the ones
  returned by bus_alloc_resource_any(9).
- Change the logic of iflib_msix_init() around to only map the MSI-X
  BAR if MSI-X is actually supported, i. e. pci_msix_count(9) returns
  > 0. Otherwise the "Unable to map MSIX table " message triggers for
  devices that simply don't support MSI-X and the user may think that
  something is wrong while in fact everything works as expected.
- Put some (mostly redundant) debug messages emitted by iflib(4)
  and em(4) during attachment under bootverbose. The non-verbose
  output of em(4) seen during attachment now is close to the one
  prior to the conversion to iflib(4).
- Replace various variants of spelling "MSI-X" (several in messages)
  with "MSI-X" as used in the PCI specifications.
- Remove some trailing whitespace from messages emitted by iflib(4)
  and change them to consistently start with uppercase.
- Remove some obsolete comments about releasing interrupts from
  drivers and correct a few others.

Reviewed by:	erj, Jacob Keller, shurd
Differential Revision:	https://reviews.freebsd.org/D18980
2019-01-30 13:21:26 +00:00
erj
a4dd5498a7 ixl(4): Fix handling data passed with ioctl from NVM update tool
From Krzysztof:

Ensure that the entire data buffer passed from the NVM update tool is copied in
to kernel space and copied back out to user space using copyin() and copyout().

PR:		234104
Submitted by:	Krzysztof Galazka <krzysztof.galazka@intel.com>
Reported by:	Finn <ixbug@riseup.net>
MFC after:	5 days
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D18817
2019-01-24 01:08:37 +00:00
erj
7a55569f12 intel iflib drivers: correct initialization of tx_cidx_processed
From Jake:

In r341156 ("Fix first-packet completion", 2018-11-28) a hack to work
around a delta calculation determining how many descriptors were used
was added to ixl_isc_tx_credits_update_dwb.

The same fix was also applied to the em and igb drivers in r340310, and
to ix in r341156.

The hack checked the case where prev and cur were equal, and then added
one. This works, because by the time we do the delta check, we already
know there is at least one packet available, so the delta should be at
least one.

However, it's not a complete fix, and as indicated by the comment is
really a hack to work around the real bug.

The real problem is that the first time that we transmit a packet,
tx_cidx_processed will be set to point to the start of the ring.
Ultimately, the credits_update function expects it to point to the
*last* descriptor that was processed. Since we haven't yet processed any
descriptors, pointing it to 0 results in this incorrect calculation.

Fix the initialization code to have it point to the end of the ring
instead. One way to think about this, is that we are setting the value
to be one prior to the first available descriptor.

Doing so, corrects the delta calculation in all cases. The original fix
only works if the first packet has exactly one descriptor. Otherwise, we
will report 1 less than the correct value.

As part of this fix, also update the MPASS assertions to match the real
expectations. First, ensure that prev is not equal to cur, since this
should never happen. Second, remove the assertion about prev==0 || delta
!= 0. It looks like that originated from when the em driver was
converted to iflib. It seems like it was supposed to ensure that delta
was non-zero. However, because we originally returned 0 delta for the
first calculation, the "prev == 0" was tacked on.

Instead, replace this with a check that delta is greater than zero,
after the correction necessary when the ring pointers wrap around.

This new solution should fix the same bug as r341156 did, but in a more
robust way.

Submitted by:	Jacob Keller <jacob.e.keller@intel.com>
Reviewed by:	shurd@
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D18545
2019-01-24 01:03:00 +00:00
shurd
0a3c73d350 Fix first-packet completion
The first packet after the ring is initialized was never
completed as isc_txd_credits_update() would not include it in the
count of completed packets. This caused netmap to never complete
a batch. See PR 233022 for more details.

This is the same fix as the r340310 for e1000

PR:		233607
Reported by:	lev
Reviewed by:	lev
MFC after:	3 days
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D18368
2018-11-28 17:37:17 +00:00
erj
236d6fde00 ixl/iavf(4): Fix TSO offloads when TXCSUM is disabled
From Jake:
The iflib stack does not disable TSO automatically when TXCSUM is
disabled, instead assuming that the driver will correctly handle TSOs
even when CSUM_IP is not set.

This results in iflib calling ixl_isc_txd_encap with packets which have
CSUM_IP_TSO, but do not have CSUM_IP or CSUM_IP_TCP set. Because of
this, ixl_tx_setup_offload will not setup the IPv4 checksum offloading.

This results in bad TSO packets being sent if a user disables TXCSUM
without disabling TSO.

Fix this by updating the ixl_tx_setup_offload function to check both
CSUM_IP and CSUM_IP_TSO when deciding whether to enable IPv4 checksums.

Once this is corrected, another issue for TSO packets is revealed. The
driver sets IFLIB_NEED_ZERO_CSUM in order to enable a work around that
causes the ip->sum field to be zero'd. This is necessary for ixl
hardware to correctly perform TSOs.

However, if TXCSUM is disabled, then the work around is not enabled, as
CSUM_IP will not be set when the iflib stack checks to see if it should
clear the sum field.

Fix this by adding IFLIB_TSO_INIT_IP to the iflib flags for the iavf and
ixl interface files.

It is uncertain if the hardware needs IFLIB_NEED_ZERO_CSUM for any other
case besides TSO, so leave that flag assigned. It may be worth
investigating to see if this work around flag could be disabled in
a future change.

Once both of these changes are made, the ixl driver should correctly
offload TSO packets when TSO4 offload is enabled, regardless of whether
TXCSUM is enabled or disabled.

Submitted by:	Jacob Keller <jacob.e.keller@intel.com>
Reviewed by:	erj@, shurd@
MFC after:	0 days
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D17900
2018-11-08 19:10:43 +00:00
erj
3339217599 ixl/iavf(4): Update remaining references of "num_queues" to "num_rx_queues"
This should fix a build issue when "options RSS" is set.

Reported by:	bz@
Sponsored by:	Intel Corporation
2018-11-01 17:29:14 +00:00
cem
e53a10b202 ixl/iavf(4): Fix GCC 6.4.0 build
Don't define redundant prototypes.

Sponsored by:	Dell EMC Isilon
2018-10-20 18:00:12 +00:00
erj
118dce4d6b iavf(4): Finish rename/rebrand internally
Rename functions and variables from ixlv to iavf to match the
user-facing name change. There shouldn't be any functional changes
with this change, but this may help with browsing the source code
and reducing diffs in the future.

Submitted by:   kbowling@
Reviewed by:    erj@, sbruno@
Approved by:	re (gjb@)
Differential Revision:  https://reviews.freebsd.org/D17544
2018-10-15 17:23:41 +00:00
erj
4578e98d65 ixl/iavf(4): Change ixlv to iavf and update it to use iflib(9)
Finishes the conversion of the 40Gb Intel Ethernet drivers to iflib(9) for
FreeBSD 12.0, and fixes numerous bugs in both ixl(4) and iavf(4).

This commit also re-adds the VF driver to GENERIC since it now compiles and
functions.

The VF driver name was changed from ixlv(4) to iavf(4) because the VF driver is
now intended to be used with future products, not just with Fortville/Fort Park
VFs.

A man page update that documents these drivers is forthcoming in a separate
commit.

Reviewed by:    sbruno@, kbowling@
Tested by:      jeffrey.e.pieper@intel.com
Approved by:	re (gjb@)
Relnotes:       yes
Sponsored by:   Intel Corporation
Differential Revision: https://reviews.freebsd.org/D16429
2018-10-12 22:40:54 +00:00
imp
7c0d7c1091 Add PNP info to PCI attachments of cbb, cxgb, ida, iwn, ixl, ixlv,
mfi, mps, mpr, mvs, my, oce, pcn, ral, rl. This only labels existing
pci device tables, and has no probe / attach code changes.

Reviewed by: imp, chuck
Submitted by: Lakhan Shiva Kamireddy <lakhanshiva@gmail.com>
Sponsored by: Google, Inc. (GSoC 2018)
Approved by: re (glen)
2018-09-26 17:12:30 +00:00
marius
d3e79ea101 Remove a duplicated interface capability bit missed in r336313. 2018-08-23 18:11:55 +00:00
marius
eeec306a59 Assorted TSO fixes for em(4)/iflib(9) and dead code removal:
- Ever since the workaround for the silicon bug of TSO4 causing MAC hangs
  was committed in r295133, CSUM_TSO always got disabled unconditionally
  by em(4) on the first invocation of em_init_locked(). However, even with
  that problem fixed, it turned out that for at least e. g. 82579 not all
  necessary TSO workarounds are in place, still causing MAC hangs even at
  Gigabit speed. Thus, for stable/11, TSO usage was deliberately disabled
  in r323292 (r323293 for stable/10) for the EM-class by default, allowing
  users to turn it on if it happens to work with their particular EM MAC
  in a Gigabit-only environment.
  In head, the TSO workaround for speeds other than Gigabit was lost with
  the conversion to iflib(9) in r311849 (possibly along with another one
  or two TSO workarounds). Yet at the same time, for EM-class MACs TSO4
  got enabled by default again, causing device hangs. Therefore, change the
  default for this hardware class back to have TSO4 off, allowing users
  to turn it on manually if it happens to work in their environment as
  we do in stable/{10,11}. An alternative would be to add a whitelist of
  EM-class devices where TSO4 actually is reliable with the workarounds in
  place, but given that the advantage of TSO at Gigabit speed is rather
  limited - especially with the overhead of these workarounds -, that's
  really not worth it. [1]
  This change includes the addition of an isc_capabilities to struct
  if_softc_ctx so iflib(9) can also handle interface capabilities that
  shouldn't be enabled by default which is used to handle the default-off
  capabilities of e1000 as suggested by shurd@ and moving their handling
  from em_setup_interface() to em_if_attach_pre() accordingly.
- Although 82543 support TSO4 in theory, the former lem(4) didn't have
  support for TSO4, presumably because TSO4 is even more broken in the
  LEM-class of MACs than the later EM ones. Still, TSO4 for LEM-class
  devices was enabled as part of the conversion to iflib(9) in r311849,
  causing device hangs. So revert back to the pre-r311849 behavior of
  not supporting TSO4 for LEM-class at all, which includes not creating
  a TSO DMA tag in iflib(9) for devices not having IFCAP_TSO4 set. [2]
- In fact, the FreeBSD TCP stack can handle a TSO size of IP_MAXPACKET
  (65535) rather than FREEBSD_TSO_SIZE_MAX (65518). However, the TSO
  DMA must have a maxsize of the maximum TSO size plus the size of a
  VLAN header for software VLAN tagging. The iflib(9) converted em(4),
  thus, first correctly sets scctx->isc_tx_tso_size_max to EM_TSO_SIZE
  in em_if_attach_pre(), but later on overrides it with IP_MAXPACKET
  in em_setup_interface() (apparently, left-over from pre-iflib(9)
  times). So remove the later and correct iflib(9) to correctly cap
  the maximum TSO size reported to the stack at IP_MAXPACKET. While at
  it, let iflib(9) use if_sethwtsomax*().
  This change includes the addition of isc_tso_max{seg,}size DMA engine
  constraints for the TSO DMA tag to struct if_shared_ctx and letting
  iflib_txsd_alloc() automatically adjust the maxsize of that tag in case
  IFCAP_VLAN_MTU is supported as requested by shurd@.
- Move the if_setifheaderlen(9) call for adjusting the maximum Ethernet
  header length from {ixgbe,ixl,ixlv,ixv,em}_setup_interface() to iflib(9)
  so adjustment is automatically done in case IFCAP_VLAN_MTU is supported.
  As a consequence, this adjustment now is also done in case of bnxt(4)
  which missed it previously.
- Move the reduction of the maximum TSO segment count reported to the
  stack by the number of m_pullup(9) calls (which in the worst case,
  can add another mbuf and, thus, the requirement for another DMA
  segment each) in the transmit path for performance reasons from
  em_setup_interface() to iflib_txsd_alloc() as these pull-ups are now
  done in iflib_parse_header() rather than in the no longer existing
  em_xmit(). Moreover, this optimization applies to all drivers using
  iflib(9) and not just em(4); all in-tree iflib(9) consumers still
  have enough room to handle full size TSO packets. Also, reduce the
  adjustment to the maximum number of m_pullup(9)'s now performed in
  iflib_parse_header().
- Prior to the conversion of em(4)/igb(4)/lem(4) and ixl(4) to iflib(9)
  in r311849 and r335338 respectively, these drivers didn't enable
  IFCAP_VLAN_HWFILTER by default due to VLAN events not being passed
  through by lagg(4). With iflib(9), IFCAP_VLAN_HWFILTER was turned on
  by default but also lagg(4) was fixed in that regard in r203548. So
  just remove the now redundant and defunct IFCAP_VLAN_HWFILTER handling
  in {em,ixl,ixlv}_setup_interface().
- Nuke other redundant IFCAP_* setting in {em,ixl,ixlv}_setup_interface()
  which is (more completely) already done in {em,ixl,ixlv}_if_attach_pre()
  now.
- Remove some redundant/dead setting of scctx->isc_tx_csum_flags in
  em_if_attach_pre().
- Remove some IFCAP_* duplicated either directly or indirectly (e. g.
  via IFCAP_HWCSUM) in {EM,IGB,IXL}_CAPS.
- Don't bother to fiddle with IFCAP_HWSTATS in ixgbe(4)/ixgbev(4) as
  iflib(9) adds that capability unconditionally.
- Remove some unused macros from em(4).
- Bump __FreeBSD_version as some of the above changes require the modules
  of drivers using iflib(9) to be recompiled.

Okayed by:	sbruno@ at 201806 DevSummit Transport Working Group [1]
Reviewed by:	sbruno (earlier version), erj
PR:	219428 (part of; comment #10) [1], 220997 (part of; comment #3) [2]
Differential Revision:	https://reviews.freebsd.org/D15720
2018-07-15 19:04:23 +00:00
marius
03ca6e751e As suggested by a comment in ixl_initialize_vsi(), use if_getcapenable(9)
instead of directly interrogating ifp->if_capenable.

Reviewed by:	erj (ixl_initialize_vsi())
Differential Revision:	https://reviews.freebsd.org/D15720 (part of)
2018-07-15 18:02:50 +00:00
erj
d4dc04c33e ixl(4): Set baudrate on link up using proper link_speed variable
And remove old, now-completely unused link_speed variable.

Reported by:	Jacob Keller <jacob.e.keller@intel.com>
MFC after:	1 month
2018-07-12 17:42:36 +00:00
erj
ac23da808d ixl(4): Fix gcc build errors
By removing redundant function declarations.

Reported by:	ci.freebsd.org via Mark Millard <marklmi@yahoo.com>
MFC after:	1 month
2018-06-20 22:16:46 +00:00
sbruno
6c435828c2 Remove "diff" line indicator. Next to see if this code works or not.
Submitted by:	mmacy
Sponsored by:	Limelight Networks
2018-06-19 15:55:21 +00:00
erj
9dbb1db362 ixl(4): Update version number to 2.0.0-k
And update copyrights to current year.

MFC after:	1 month
Sponsored by:	Intel Corporation
2018-06-18 20:32:53 +00:00
erj
01a93772b8 ixl(4): Update to use iflib
Update the driver to use iflib in order to bring performance,
maintainability, and (hopefully) stability benefits to the driver.

The driver currently isn't completely ported; features that are missing:

- VF driver (ixlv)
- SR-IOV host support
- RDMA support

The plan is to have these re-added to the driver before the next FreeBSD release.

Reviewed by:	gallatin@
Contributions by: gallatin@, mmacy@, krzysztof.galazka@intel.com
Tested by:	jeffrey.e.pieper@intel.com
MFC after:	1 month
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D15577
2018-06-18 20:12:54 +00:00
mmacy
7aeac9ef18 ifnet: Replace if_addr_lock rwlock with epoch + mutex
Run on LLNW canaries and tested by pho@

gallatin:
Using a 14-core, 28-HTT single socket E5-2697 v3 with a 40GbE MLX5
based ConnectX 4-LX NIC, I see an almost 12% improvement in received
packet rate, and a larger improvement in bytes delivered all the way
to userspace.

When the host receiving 64 streams of netperf -H $DUT -t UDP_STREAM -- -m 1,
I see, using nstat -I mce0 1 before the patch:

InMpps OMpps  InGbs  OGbs err TCP Est %CPU syscalls csw     irq GBfree
4.98   0.00   4.42   0.00 4235592     33   83.80 4720653 2149771   1235 247.32
4.73   0.00   4.20   0.00 4025260     33   82.99 4724900 2139833   1204 247.32
4.72   0.00   4.20   0.00 4035252     33   82.14 4719162 2132023   1264 247.32
4.71   0.00   4.21   0.00 4073206     33   83.68 4744973 2123317   1347 247.32
4.72   0.00   4.21   0.00 4061118     33   80.82 4713615 2188091   1490 247.32
4.72   0.00   4.21   0.00 4051675     33   85.29 4727399 2109011   1205 247.32
4.73   0.00   4.21   0.00 4039056     33   84.65 4724735 2102603   1053 247.32

After the patch

InMpps OMpps  InGbs  OGbs err TCP Est %CPU syscalls csw     irq GBfree
5.43   0.00   4.20   0.00 3313143     33   84.96 5434214 1900162   2656 245.51
5.43   0.00   4.20   0.00 3308527     33   85.24 5439695 1809382   2521 245.51
5.42   0.00   4.19   0.00 3316778     33   87.54 5416028 1805835   2256 245.51
5.42   0.00   4.19   0.00 3317673     33   90.44 5426044 1763056   2332 245.51
5.42   0.00   4.19   0.00 3314839     33   88.11 5435732 1792218   2499 245.52
5.44   0.00   4.19   0.00 3293228     33   91.84 5426301 1668597   2121 245.52

Similarly, netperf reports 230Mb/s before the patch, and 270Mb/s after the patch

Reviewed by:	gallatin
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D15366
2018-05-18 20:13:34 +00:00
erj
1a64c55b96 ixl(4): Update to 1.9.9-k
Refresh upstream driver before impending conversion to iflib.

Major changes:

- Support for descriptor writeback mode (required by ixlv(4) for AVF support)
- Ability to disable firmware LLDP agent by user (PR 221530)
- Fix for TX queue hang when using TSO (PR 221919)
- Separate descriptor ring sizes for TX and RX rings

PR:		221530, 221919
Submitted by:	Krzysztof Galazka <krzysztof.galazka@intel.com>
Reviewed by:	#IntelNetworking
MFC after:	1 day
Relnotes:	Yes
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D14985
2018-05-01 18:50:12 +00:00
vmaffione
3c7434c730 netmap: align codebase to the current upstream (commit id 3fb001303718146)
Changelist:
    - Turn tx_rings and rx_rings arrays into arrays of pointers to kring
      structs. This patch includes fixes for ixv, ixl, ix, re, cxgbe, iflib,
      vtnet and ptnet drivers to cope with the change.
    - Generalize the nm_config() callback to accept a struct containing many
      parameters.
    - Introduce NKR_FAKERING to support buffers sharing (used for netmap
      pipes)
    - Improved API for external VALE modules.
    - Various bug fixes and improvements to the netmap memory allocator,
      including support for externally (userspace) allocated memory.
    - Refactoring of netmap pipes: now linked rings share the same netmap
      buffers, with a separate set of kring pointers (rhead, rcur, rtail).
      Buffer swapping does not need to happen anymore.
    - Large refactoring of the control API towards an extensible solution;
      the goal is to allow the addition of more commands and extension of
      existing ones (with new options) without the need of hacks or the
      risk of running out of configuration space.
      A new NIOCCTRL ioctl has been added to handle all the requests of the
      new control API, which cover all the functionalities so far supported.
      The netmap API bumps from 11 to 12 with this patch. Full backward
      compatibility is provided for the old control command (NIOCREGIF), by
      means of a new netmap_legacy module. Many parts of the old netmap.h
      header has now been moved to netmap_legacy.h (included by netmap.h).

Approved by:	hrs (mentor)
2018-04-12 07:20:50 +00:00
brooks
ac0325b4db Use an accessor function to access ifr_data.
This fixes 32-bit compat (no ioctl command defintions are required
as struct ifreq is the same size).  This is believed to be sufficent to
fully support ifconfig on 32-bit systems.

Reviewed by:	kib
Obtained from:	CheriBSD
MFC after:	1 week
Relnotes:	yes
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14900
2018-03-30 18:50:13 +00:00
pfg
ced875130d Revert r327828, r327949, r327953, r328016-r328026, r328041:
Uses of mallocarray(9).

The use of mallocarray(9) has rocketed the required swap to build FreeBSD.
This is likely caused by the allocation size attributes which put extra pressure
on the compiler.

Given that most of these checks are superfluous we have to choose better
where to use mallocarray(9). We still have more uses of mallocarray(9) but
hopefully this is enough to bring swap usage to a reasonable level.

Reported by:	wosch
PR:		225197
2018-01-21 15:42:36 +00:00
pfg
018f01e26e dev/(e1000,ixl): Make some use of mallocarray(9).
Reviewed by:	erj
Differential Revision: https://reviews.freebsd.org/D13833
2018-01-11 15:25:26 +00:00
sephe
f1d4cb25ab ixl: Fix mbuf hash type settings.
IPV6_EXs in RSS never mean fragment.  They mean:
"- Home address from the home address option in the IPv6 destination
   options header.  If the extension header is not present, use the
   Source IPv6 Address.
 - IPv6 address that is contained in the Routing-Header-Type-2 from
   the associated extension header.  If the extension header is not
   present, use the Destination IPv6 Address."

UDP_IPV4_EX is an invalid RSS hash type, which will be removed.

Quoted from:
https://docs.microsoft.com/en-us/windows-hardware/drivers/network/rss-hashing-types#ndishashipv6ex

Reviewed by:	erj
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D12450
2017-09-27 05:59:54 +00:00
sbruno
5728c412f0 Drop IXL RX lock during TCP_LRO, fixes LOR mahem while holding the RX
queue lock when the uppoer stack is called inside TCP_LRO

Submitted by:	Kevin Bowling <kevin.bowling@kev009.com>
Reviewed by:	erj
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D11724
2017-07-27 23:01:07 +00:00
rlibby
5f27f45e1a ixl: gcc build errors
Fix minor -Werror issues when building with gcc from -Wredundant-decls,
-Wunused, -Wbool-operations.  Also ensure the M_IXL malloc type is only
defined once.

Reviewed by:	efj
Approved by:	markj (mentor)
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D11414
2017-07-14 00:10:51 +00:00
erj
922a5bb1f3 ixl(4)/ixlv(4): Stop leaking every busdma entry in receive path
From Brett:

In short, busdma maps for received packets were not being unloaded in the
interrupt handler before the packets were passed up the network stack. The fix
was to add a busdma sync and unload for the two receive maps.

This bug is significant for certain busdma providers, for example IOMMUs,
where not unloading the maps means that 1) the IOMMU mappings that allow the
NIC to DMA the received packets into host memory stay open indefinitely,
potentially violating a desired security policy, and 2) resources such as
device address space addresses and host memory for bookkeeping are never freed.

Without an IOMMU or bounce buffering enabled for the ixl device, I don't think
adding these calls will have any significant performance impact. With the
IOMMU enabled, I have noticed a performance impact on the receive side, which
is expected.

Submitted by:	Brett Gutstein <bgutstein@rice.edu>
Reviewed by:	erj@
MFC after:	1 week
2017-07-13 22:12:41 +00:00
erj
a8ff4bf5b6 ixl(4)/ixlv(4): Fix some busdma tags and improper map NULL.
Description from Brett:

"The busdma tags used to create mappings for the tx and rx rings did not have
the device's tag as parents, meaning that they did not respect the device's
busdma properties. The other tags used in the driver had their parents set
appropriately.

Also, the dma maps for each buffer in ixl_txeof() were being NULLed after
being unloaded, which is an error because those maps are then reused without
being recreated (I believe this also leaked resources since the maps were not
destroyed). Simply removing the line that sets the maps to NULL gives the
desired behavior. There does not seem to be a similar problem with ixl_rxeof().
Functions to free the tx and rx rings also NULL out the dma maps for each
buffer, but this seems okay because the maps are destroyed and not reused in
this case.

With these fixes, my ixl card seems to be working with the IOMMU enabled."

Submitted by:	Brett Gutstein <bgutstein@rice.edu>
Reviewed by:	erj
Approved by:	Alan Cox <alc@rice.edu>
MFC after:	1 week
2017-06-10 18:56:30 +00:00
erj
1edbd9d1a6 ixl(4): Update to 1.7.12-k
Refresh upstream driver before impending conversion to iflib.

Major new features:

- Support for Fortville-based 25G adapters
- Support for I2C reads/writes

(To prevent getting or sending corrupt data, you should set
dev.ixl.0.debug.disable_fw_link_management=1 when using I2C
[this will disable link!], then set it to 0 when done. The driver implements
the SIOCGI2C ioctl, so ifconfig -v works for reading I2C data,
but there are read_i2c and write_i2c sysctls under the .debug sysctl tree
[the latter being useful for upper page support in QSFP+]).

- Addition of an iWARP client interface (so the future iWARP driver for
  X722 devices can communicate with the base driver).
  - Compiling this option in is enabled by default, with "options IXL_IW" in
    GENERIC.

Differential Revision:	https://reviews.freebsd.org/D9227
Reviewed by:	sbruno
MFC after:	2 weeks
Sponsored by:	Intel Corporation
2017-02-10 01:04:11 +00:00
sbruno
422dd402e8 Restore r302384 that was dropped when r303816 updated the driver to 1.6.6.-k
Original log:
Do not initialize the adapter on MTU change when adapter status is down.
This fixes long-standing problems when changing settings of the adapter.

Discussed in:
https://lists.freebsd.org/pipermail/freebsd-net/2016-June/045509.html

Reported by:	Franco Fichtner <franco@opnsense.org>
MFH:		2 days
2017-01-03 14:52:39 +00:00
erj
6d237a5828 Fix linker warnings (errors on gcc) that resulted from r304510.
The variables that are extern in the netmap header file should be
defined in ixl_txrx.c (the file that is included in both ixl(4)/ixlv(4),
not in the main driver source files.

Reported by:	ed@, dim@, ngie@
2016-09-01 01:08:18 +00:00
erj
12b75752aa ixlv(4): Fix ixlv(4) not loading when loaded as a kernel module and netmap is enabled.
Define (unused) netmap variables; ixlv(4) doesn't support netmap yet.

Reported by:	sergey.kozlov@intel.com
Sponsored by:	Intel Corporation
2016-08-20 00:08:10 +00:00
dumbbell
371e0a7254 Consistently use device_t
Several files use the internal name of `struct device` instead of
`device_t` which is part of the public API. This patch changes all
`struct device *` to `device_t`.

The remaining occurrences of `struct device` are those referring to the
Linux or OpenBSD version of the structure, or the code is not built on
FreeBSD and it's unclear what to do.

Submitted by:	Matthew Macy <mmacy@nextbsd.org> (previous version)
Approved by:	emaste, jhibbits, sbruno
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D7447
2016-08-09 19:32:06 +00:00
sbruno
a6f5d0dd03 Fixup ixl(4) options parsing to actually compile when using RSS/PCBGROUP
in GENERIC.

Fixup #ifdef RSS code blocks so that they build and add/delete variables
that were missesd during the creation of this code.

This code is untested and should have a big red warning on it.

Reported by:	npn@
MFC after:	2 days
2016-08-08 18:57:50 +00:00
sbruno
28b6f59486 ixl(4): Update to ixl-1.6.6-k.
Submitted by:	erj
Reviewed by:	jeffrey.e.pieper@intel.com
MFC after:	3 days
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D7391
2016-08-07 18:12:36 +00:00
sbruno
8f3d2f9bc8 Do not initialize the adapter on MTU change when adapter status is down.
This fixes long-standing problems when changing settings of the adapter.

Discussed in:
https://lists.freebsd.org/pipermail/freebsd-net/2016-June/045509.html

Submitted by:	arnaud.ysmal@stormshield.eu
Reviewed by:	erj@freebsd.org
Approved by:	re (gjb)
Differential Revision:	https://reviews.freebsd.org/D7030
2016-07-07 03:39:18 +00:00
sephe
7acd138965 net: Use M_HASHTYPE_OPAQUE_HASH if the mbuf flowid has hash properties
Reviewed by:	hps, erj, tuexen
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D6688
2016-06-07 04:51:50 +00:00
ngie
65757e1471 Delete duplicate declaration for i40e_blink_phy_link_led(..)
It was already declared on line 90

Differential Revision: https://reviews.freebsd.org/D6570
Reported by: gcc
Reviewed by: sbruno
Sponsored by: EMC / Isilon Storage Division
2016-05-29 01:52:05 +00:00
adrian
3561b45e67 [ixl] fix build for RSS.
Untested.
2016-05-23 03:46:36 +00:00
erj
437b22e7e4 ixl: Re-add a change to TC0 setup made in D5203.
Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:22:34 +00:00
erj
713595cc64 ixl: Update to 1.4.27-k.
Changes:

Kevin Scott		i40e-shared: Save off VSI resource count when updating VSI
Anjali Singhai Jain	i40e-shared: Expose some registers to program parser, FD and RSS logic
Eric Joyner		ixl: Fix errors in queue interrupt setup in MSIX mode.
Shannon Nelson		i40e-shared: implement and use rx ctl helper functions
Shannon Nelson		i40e-shared: don't use AQ calls from clear_hw
Eric Joyner		ixl: Use rx ctl read/write functions instead of register accesses in certain places.
Shannon Nelson		i40e-shared: add adminq commands for rx ctl registers
Shannon Nelson		i40e-shared: implement and use rx ctl helper functions
Jeremiah Kyle		i40e-shared: Corrected function name in comment block
Deepthi Kavalur		i40e-shared: correcting a HW capability display info
Shannon Nelson		i40e-shared: fixups for (Linux) upstream consistency
Eric Joyner		ixl: Only stop firmware's LLDP agent on older firmware versions.

Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:22:12 +00:00
erj
cbf489edc2 ixl: Update to 1.4.24-k.
Changes by author:

Eric Joyner		ixl: Fix compile error when IXL_DEBUG is defined.
Eric Joyner		ixl: Fix taskqueues created in init() not being freed in stop().
Eric Joyner		ixl: Add additional debug sysctls, for Tx and Rx queue stats.
Eric Joyner		ixl: Enable dynamic itr by default.
Eric Joyner		ixl: Edit spacing, comments,  function signatures (to conform to style(9)).
Eric Joyner		ixl: Check for errors when tearing down msix interrupts.
Eric Joyner		ixl: Remove unnecessary register reads/writes.
Eric Joyner		ixl: Remove admin queue interrupt enable from general interrupt enable.
Eric Joyner		ixl: Update switch config after teardown/reset flow in init().
Eric Joyner		ixl: Add additional admin queue error code output to admin queue call errors.
Eric Joyner		ixl: Don't destroy i40e spinlock if it's already uninitialized.
Shannon Nelson		i40e-shared: clean event descriptor before use
Anjali Singhai Jain	i40e-shared: When in promisc mode apply promisc mode to Tx Traffic as well
Kevin Scott		i40e_shared: Increase timeout when checking GLGEN_RSTAT_DEVSTATE bit
Eric Joyner		ixlv: Fix IXL_DEBUG compile issue.
Eric Joyner		ixlv: Attempt to fix panic/other issues when rapidly unloading/loading driver.
Eric Joyner		ixl/ixlv: Revert m_collapse() in ixl_xmit() to m_defrag().
Deepthi Kavalur		i40e_shared: Trace logging HW capabilities
Eric Joyner		ixlv: Correctly unlock/relock around init() call in vc_completion().
Eric Joyner		ixl: Stop preventing changing flow control mode for CR4 media.
Eric Joyner		ixl: Set IPv6 TCP offload flag when doing TSO.

Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:21:52 +00:00
erj
e70f15d742 ixl: Update to 1.4.20-k.
Changes by author:

Eric Joyner	ixl: Add more error messages/checks to ixl_vsi_assign_msix().
Eric Joyner	ixl/ixlv: Clarify a comment about descriptors.
Eric Joyner	ixl/ixlv: Improve i40e_debug() implementation.
Eric Joyner	ixl/ixlv: Remove unused ASSERT() macro; move struct around.
Eric Joyner	ixl: Set initial advertised speed value in init_locked().
Eric Joyner	ixl: Fix flow control sysctl value being stored when new value is invalid.
Eric Joyner	Edit comments and spacing.
Carolyn Wyborny	i40e-shared: Add functions to blink led on Coppervale PHY
Eric Joyner	ixl: Re-do interrupt setup.
Eric Joyner	ixl: Remove VFLR task setup from legacy flow.
Eric Joyner	ixl: Shutdown/setup HMC when handling an EMPR reset.

Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:21:34 +00:00
erj
b1978246c9 ixl: Update to 1.4.17-k.
Changes:

Kiran Patil	i40e-shared: APIs to Add/remove port mirroring rules
Shannon Nelson	i40e-shared: add VEB stat control and remove L2 cloud filter
Eric Joyner	ixl: Update NVM version information shown.
Eric Joyner	ixl: Remove empty else block.
Eric Joyner	ixl: Slightly re-work ixl_init_msix().
Eric Joyner	ixl: Remove duplicate queue enablement.
Shannon Nelson	i40e-shared: implement the API function for aq_set_switch_config
Eric Joyner	ixl: Update nvm version string shown in sysctl.
Eric Joyner	ixl/ixlv: Changes to PF/VF minor version checking/handling.
Eric Joyner	ixlv: Reduce maximum wait time for responses to VF AQ messages.
Eric Joyner	ixl/ixlv: Edit comments, comment out code, and edit spacing.
Eric Joyner	ixl: Print log message when SR-IOV init is successful.
Eric Joyner	ixl: Add Tx Flow Control filter from main PF VSI.
Eric Joyner	ixlv: Add extra error message when ixlv_get_vf_config times out.
Eric Joyner	ixl: Assign current MOCS optics the XLPPI media type.
Eric Joyner	ixl: Remove conditional wait after link status event.
Eric Joyner	ixl: Add line break and remove extraneous return statement.
Eric Joyner	ixl: Allow 40G speeds in the advertise_speed sysctl.
Eric Joyner	ixl: Add "CRC enable" field to link_status sysctl output.
Eric Joyner	ixl: Move sbuf.h include out of IXL_DEBUG* defines.
Eric Joyner	ixl: Move remaining debug sysctl funcs to IXL_DEBUG_SYSCTL define.
Eric Joyner	ixl: Add cases for all remaining media types in shared code to media_status().

Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:21:17 +00:00
erj
ae5dbad4c0 ixl: Update to 1.4.13-k.
Changes:

Shannon Nelson		i40e-shared: set shared bit for multicast filters
Piotr Raczynski		i40e-shared: Bump AQ minor version for FVL/FPK
Eric Joyner		ixl: Remove call to i40e_aq_set_mac_config() in init path.
Eric Joyner		ixl: Always add interface mac address to driver+hw filter list.
Eric Joyner		ixl: Edit comments.
Eric Joyner		ixl: Add more descriptive sysctl help messages.
Eric Joyner		ixl: Report more info in link_status sysctl.
Eric Joyner		ixl: Flip set_aq_phy_int_mask mask bits.

Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:20:59 +00:00
erj
d659ce9976 ixl: Update to 1.4.12-k.
Changes by author:

Eric Joyner		ixl: Remove substitution of EACCES for EPERM when perrno is set on an nvmupdate command return.
Eric Joyner		ixl: Print message when hardware sends GRST interrupt.
Eric Joyner		ixl: Fix kernel panic when driver fails to initialize admin queue.
Eric Joyner		ixl: Print out messages when a non-handled other interrupt occurs.
Eric Joyner		ixl: Fix spaces in a couple messages.
Eric Joyner		ixl: Add lock around nvmupd command entry point and reconvert EPERM errors to EACCES.
Anjali Singhai Jain	i40e-shared: Make some changes in the nvm read code
Shannon Nelson		i40e-shared: AQ Add Run PHY Activity struct
Shannon Nelson		i40e-shared: AQ Add Geneve cloud tunnel type
Shannon Nelson		i40e-shared: AQ Add external power class to get link status response struct
Shannon Nelson		i40e-shared: AQ Add shared resource flags for macvlan filters
Shannon Nelson		i40e-shared: AQ Add set_switch_config
Shannon Nelson		i40e-shared: AQ Add VXLAN-GPE tunnel type for cloud filter and tunnel commands
Shannon Nelson		i40e-shared: AQ thermal sensor control struct
Shannon Nelson		i40e-shared: Bump AQ minor version to 1.5 for FVL5 features
Shannon Nelson		i40e-shared: add a little more to an NVM update debug message
Carolyn Wyborny		i40e-shared: Fix for PHY NVM interaction problem
Eric Joyner		i40e-shared: Add prototypes for private NVM write functions
Eric Joyner		ixl/ixlv: Remove unused define from ixl.h.
Eric Joyner		ixl: Add handling of EMP reset for nvm update purposes.
Eric Joyner		ixl: Move addition of device sysctls to separate function.
Eric Joyner		ixl: Fix up a couple error messages in ixl_attach().
Eric Joyner		ixl: Update the hardware resource allocation debug sysctl.

Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:20:36 +00:00
erj
8341d0e8b9 ixl: Update to 1.4.9-k.
Changes by author:

Kamil Krawczyk		i40e-shared: use explicit cast from u16 to u8
Anjali Singhai Jain	i40e-shared: Add a Virtchnl offload for RSS PCTYPE V2
Eric Joyner		ixl: Remove HP device IDs.
Jesse Brandeburg	i40e-shared: add small bit of debug
Mitch Williams		i40e-shared: check for stopped admin queue
Mitch Williams		i40e-shared: set aq count after memory allocation
Jesse Brandeburg	i40e-shared: remove forever unused ID
Eric Joyner		ixl: Fix bug where RSS does not hash to more than 16 queues.
Shannon Nelson		i40e-shared: define function capabilities in only one place
Eric Joyner		ixl: Change spacing, comments, and a single error message.
Eric Joyner		ixl: Save admin queue phy interrupt mask as a define.
Eric Joyner		ixl: Move callout_reset() to later in init_locked(), and stop clearing OACTIVE in driver flags.
Eric Joyner		ixl: Add new reset+build flow to init() if it detects that the admin queue is stopped.
Eric Joyner		ixl: Return EACCES instead of EPERM when an nvmupdate command fails.
Eric Joyner		ixl: Remove KX_A device ID.

Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:20:18 +00:00
erj
f8cb515980 ixl: Update to 1.4.7-k.
Changes by author:

Helin Zhang		i40e_shared: Fix compilation error - pointer-arith
Paul M Stillwell Jr	i40e-shared: Replace sprintf with i40e_debug
Anjali Singhai Jain	i40e-shared: Fix an accidental error with BIT_ULL replacement
Jesse Brandeburg	i40e-shared: remove useless assignments
Anjali Singhai Jain	i40e-shared: Add a workaround to drop all flow control frames
Anjali Singhai Jain	i40e-shared: Add new response struct from FW for AQ command i40e_aqc_lldp_set_local_mib
Anjali Singhai Jain	i40e-shared: Acquire NVM, before issuing an AQ read nvm command
Eric Joyner		ixl/ixlv: Remove unused MAX_LOOP define.
Eric Joyner		ixl: Remove extra aq_get_link_info() call in attach().
Eric Joyner		ixl: Modify a couple error messages in attach() to be more informative.
Eric Joyner		ixl: Add i40e_get_link_status() call to init_locked().
Eric Joyner		ixl: Move callout_stop() to earlier in ixl_stop().
Eric Joyner		ixl: Add extra comments around link ITR code.
Eric Joyner		ixl: Attempt to enhance link event handling.
Eric Joyner		ixl: Style, spacing, and comment changes.
Eric Joyner		ixl: Add I40E_NVM_ACCESS definition.
Eric Joyner		ixl: Add interface for nvmupdate tool ioctl to driver.
Eric Joyner		ixl: Don't strip out nvm update support from the driver anymore.
Eric Joyner		ixl: Interrupts are now allocated/setup and torn down/released on init()/stop().

Differential Revision:  https://reviews.freebsd.org/D6211
Reviewed by:    sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after:      2 weeks
Sponsored by:   Intel Corporation
2016-05-12 18:19:53 +00:00