Commit Graph

533 Commits

Author SHA1 Message Date
Sinan Kaya
f9442ac498 qlcnic: Eliminate duplicate barriers on weakly-ordered archs
Code includes wmb() followed by writel(). writel() already has a
barrier on some architectures like arm64.

This ends up CPU observing two barriers back to back before executing
the register write.

Since code already has an explicit barrier call, changing writel() to
writel_relaxed().

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Acked-by: Manish Chopra <manish.chopra@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-26 12:47:55 -04:00
Joe Perches
d3757ba4c1 ethernet: Use octal not symbolic permissions
Prefer the direct use of octal for permissions.

Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace
and some typing.

Miscellanea:

o Whitespace neatening around these conversions.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-26 12:07:49 -04:00
Junxiao Bi
233ac38916 qlcnic: fix deadlock bug
The following soft lockup was caught. This is a deadlock caused by
recusive locking.

Process kworker/u40:1:28016 was holding spin lock "mbx->queue_lock" in
qlcnic_83xx_mailbox_worker(), while a softirq came in and ask the same spin
lock in qlcnic_83xx_enqueue_mbx_cmd(). This lock should be hold by disable
bh..

[161846.962125] NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/u40:1:28016]
[161846.962367] Modules linked in: tun ocfs2 xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs xen_privcmd autofs4 ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue configfs bnx2fc fcoe libfcoe libfc sunrpc 8021q mrp garp bridge stp llc bonding dm_round_robin dm_multipath iTCO_wdt iTCO_vendor_support pcspkr sb_edac edac_core i2c_i801 shpchp lpc_ich mfd_core ioatdma ipmi_devintf ipmi_si ipmi_msghandler sg ext4 jbd2 mbcache2 sr_mod cdrom sd_mod igb i2c_algo_bit i2c_core ahci libahci megaraid_sas ixgbe dca ptp pps_core vxlan udp_tunnel ip6_udp_tunnel qla2xxx scsi_transport_fc qlcnic crc32c_intel be2iscsi bnx2i cnic uio cxgb4i cxgb4 cxgb3i libcxgbi ipv6 cxgb3 mdio libiscsi_tcp qla4xxx iscsi_boot_sysfs libiscsi scsi_transport_iscsi dm_mirror dm_region_hash dm_log dm_mod
[161846.962454]
[161846.962460] CPU: 1 PID: 28016 Comm: kworker/u40:1 Not tainted 4.1.12-94.5.9.el6uek.x86_64 #2
[161846.962463] Hardware name: Oracle Corporation SUN SERVER X4-2L      /ASSY,MB,X4-2L         , BIOS 26050100 09/19/2017
[161846.962489] Workqueue: qlcnic_mailbox qlcnic_83xx_mailbox_worker [qlcnic]
[161846.962493] task: ffff8801f2e34600 ti: ffff88004ca5c000 task.ti: ffff88004ca5c000
[161846.962496] RIP: e030:[<ffffffff810013aa>]  [<ffffffff810013aa>] xen_hypercall_sched_op+0xa/0x20
[161846.962506] RSP: e02b:ffff880202e43388  EFLAGS: 00000206
[161846.962509] RAX: 0000000000000000 RBX: ffff8801f6996b70 RCX: ffffffff810013aa
[161846.962511] RDX: ffff880202e433cc RSI: ffff880202e433b0 RDI: 0000000000000003
[161846.962513] RBP: ffff880202e433d0 R08: 0000000000000000 R09: ffff8801fe893200
[161846.962516] R10: ffff8801fe400538 R11: 0000000000000206 R12: ffff880202e4b000
[161846.962518] R13: 0000000000000050 R14: 0000000000000001 R15: 000000000000020d
[161846.962528] FS:  0000000000000000(0000) GS:ffff880202e40000(0000) knlGS:ffff880202e40000
[161846.962531] CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
[161846.962533] CR2: 0000000002612640 CR3: 00000001bb796000 CR4: 0000000000042660
[161846.962536] Stack:
[161846.962538]  ffff880202e43608 0000000000000000 ffffffff813f0442 ffff880202e433b0
[161846.962543]  0000000000000000 ffff880202e433cc ffffffff00000001 0000000000000000
[161846.962547]  00000009813f03d6 ffff880202e433e0 ffffffff813f0460 ffff880202e43440
[161846.962552] Call Trace:
[161846.962555]  <IRQ>
[161846.962565]  [<ffffffff813f0442>] ? xen_poll_irq_timeout+0x42/0x50
[161846.962570]  [<ffffffff813f0460>] xen_poll_irq+0x10/0x20
[161846.962578]  [<ffffffff81014222>] xen_lock_spinning+0xe2/0x110
[161846.962583]  [<ffffffff81013f01>] __raw_callee_save_xen_lock_spinning+0x11/0x20
[161846.962592]  [<ffffffff816e5c57>] ? _raw_spin_lock+0x57/0x80
[161846.962609]  [<ffffffffa028acfc>] qlcnic_83xx_enqueue_mbx_cmd+0x7c/0xe0 [qlcnic]
[161846.962623]  [<ffffffffa028e008>] qlcnic_83xx_issue_cmd+0x58/0x210 [qlcnic]
[161846.962636]  [<ffffffffa028caf2>] qlcnic_83xx_sre_macaddr_change+0x162/0x1d0 [qlcnic]
[161846.962649]  [<ffffffffa028cb8b>] qlcnic_83xx_change_l2_filter+0x2b/0x30 [qlcnic]
[161846.962657]  [<ffffffff8160248b>] ? __skb_flow_dissect+0x18b/0x650
[161846.962670]  [<ffffffffa02856e5>] qlcnic_send_filter+0x205/0x250 [qlcnic]
[161846.962682]  [<ffffffffa0285c77>] qlcnic_xmit_frame+0x547/0x7b0 [qlcnic]
[161846.962691]  [<ffffffff8160ac22>] xmit_one+0x82/0x1a0
[161846.962696]  [<ffffffff8160ad90>] dev_hard_start_xmit+0x50/0xa0
[161846.962701]  [<ffffffff81630112>] sch_direct_xmit+0x112/0x220
[161846.962706]  [<ffffffff8160b80f>] __dev_queue_xmit+0x1df/0x5e0
[161846.962710]  [<ffffffff8160bc33>] dev_queue_xmit_sk+0x13/0x20
[161846.962721]  [<ffffffffa0575bd5>] bond_dev_queue_xmit+0x35/0x80 [bonding]
[161846.962729]  [<ffffffffa05769fb>] __bond_start_xmit+0x1cb/0x210 [bonding]
[161846.962736]  [<ffffffffa0576a71>] bond_start_xmit+0x31/0x60 [bonding]
[161846.962740]  [<ffffffff8160ac22>] xmit_one+0x82/0x1a0
[161846.962745]  [<ffffffff8160ad90>] dev_hard_start_xmit+0x50/0xa0
[161846.962749]  [<ffffffff8160bb1e>] __dev_queue_xmit+0x4ee/0x5e0
[161846.962754]  [<ffffffff8160bc33>] dev_queue_xmit_sk+0x13/0x20
[161846.962760]  [<ffffffffa05cfa72>] vlan_dev_hard_start_xmit+0xb2/0x150 [8021q]
[161846.962764]  [<ffffffff8160ac22>] xmit_one+0x82/0x1a0
[161846.962769]  [<ffffffff8160ad90>] dev_hard_start_xmit+0x50/0xa0
[161846.962773]  [<ffffffff8160bb1e>] __dev_queue_xmit+0x4ee/0x5e0
[161846.962777]  [<ffffffff8160bc33>] dev_queue_xmit_sk+0x13/0x20
[161846.962789]  [<ffffffffa05adf74>] br_dev_queue_push_xmit+0x54/0xa0 [bridge]
[161846.962797]  [<ffffffffa05ae4ff>] br_forward_finish+0x2f/0x90 [bridge]
[161846.962807]  [<ffffffff810b0dad>] ? ttwu_do_wakeup+0x1d/0x100
[161846.962811]  [<ffffffff815f929b>] ? __alloc_skb+0x8b/0x1f0
[161846.962818]  [<ffffffffa05ae04d>] __br_forward+0x8d/0x120 [bridge]
[161846.962822]  [<ffffffff815f613b>] ? __kmalloc_reserve+0x3b/0xa0
[161846.962829]  [<ffffffff810be55e>] ? update_rq_runnable_avg+0xee/0x230
[161846.962836]  [<ffffffffa05ae176>] br_forward+0x96/0xb0 [bridge]
[161846.962845]  [<ffffffffa05af85e>] br_handle_frame_finish+0x1ae/0x420 [bridge]
[161846.962853]  [<ffffffffa05afc4f>] br_handle_frame+0x17f/0x260 [bridge]
[161846.962862]  [<ffffffffa05afad0>] ? br_handle_frame_finish+0x420/0x420 [bridge]
[161846.962867]  [<ffffffff8160d057>] __netif_receive_skb_core+0x1f7/0x870
[161846.962872]  [<ffffffff8160d6f2>] __netif_receive_skb+0x22/0x70
[161846.962877]  [<ffffffff8160d913>] netif_receive_skb_internal+0x23/0x90
[161846.962884]  [<ffffffffa07512ea>] ? xenvif_idx_release+0xea/0x100 [xen_netback]
[161846.962889]  [<ffffffff816e5a10>] ? _raw_spin_unlock_irqrestore+0x20/0x50
[161846.962893]  [<ffffffff8160e624>] netif_receive_skb_sk+0x24/0x90
[161846.962899]  [<ffffffffa075269a>] xenvif_tx_submit+0x2ca/0x3f0 [xen_netback]
[161846.962906]  [<ffffffffa0753f0c>] xenvif_tx_action+0x9c/0xd0 [xen_netback]
[161846.962915]  [<ffffffffa07567f5>] xenvif_poll+0x35/0x70 [xen_netback]
[161846.962920]  [<ffffffff8160e01b>] napi_poll+0xcb/0x1e0
[161846.962925]  [<ffffffff8160e1c0>] net_rx_action+0x90/0x1c0
[161846.962931]  [<ffffffff8108aaba>] __do_softirq+0x10a/0x350
[161846.962938]  [<ffffffff8108ae75>] irq_exit+0x125/0x130
[161846.962943]  [<ffffffff813f03a9>] xen_evtchn_do_upcall+0x39/0x50
[161846.962950]  [<ffffffff816e7ffe>] xen_do_hypervisor_callback+0x1e/0x40
[161846.962952]  <EOI>
[161846.962959]  [<ffffffff816e5c4a>] ? _raw_spin_lock+0x4a/0x80
[161846.962964]  [<ffffffff816e5b1e>] ? _raw_spin_lock_irqsave+0x1e/0xa0
[161846.962978]  [<ffffffffa028e279>] ? qlcnic_83xx_mailbox_worker+0xb9/0x2a0 [qlcnic]
[161846.962991]  [<ffffffff810a14e1>] ? process_one_work+0x151/0x4b0
[161846.962995]  [<ffffffff8100c3f2>] ? check_events+0x12/0x20
[161846.963001]  [<ffffffff810a1960>] ? worker_thread+0x120/0x480
[161846.963005]  [<ffffffff816e187b>] ? __schedule+0x30b/0x890
[161846.963010]  [<ffffffff810a1840>] ? process_one_work+0x4b0/0x4b0
[161846.963015]  [<ffffffff810a1840>] ? process_one_work+0x4b0/0x4b0
[161846.963021]  [<ffffffff810a6b3e>] ? kthread+0xce/0xf0
[161846.963025]  [<ffffffff810a6a70>] ? kthread_freezable_should_stop+0x70/0x70
[161846.963031]  [<ffffffff816e6522>] ? ret_from_fork+0x42/0x70
[161846.963035]  [<ffffffff810a6a70>] ? kthread_freezable_should_stop+0x70/0x70
[161846.963037] Code: cc 51 41 53 b8 1c 00 00 00 0f 05 41 5b 59 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-29 17:59:00 -05:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Colin Ian King
f6849d01bd qlcnic: remove redundant zero check on retries counter
At the end of the do while loop the integer counter retries will
always be zero and so the subsequent check to see if it is zero
is always true and therefore redundant.  Remove the redundant check
and always return -EIO on this return path.  Also unbreak the literal
string in dev_err message to clean up a checkpatch warning.

Detected by CoverityScan, CID#744279 ("Logically dead code")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-01 10:33:55 -07:00
Bhumika Goyal
da6817ebc3 qlogic: make device_attribute const
Make these const as they are only passed as an argument to the
function device_create_file and device_remove_file and the corresponding
arguments are of type const.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:24:22 -07:00
Bhumika Goyal
2d29b39739 qlcnic: add const to bin_attribute structure
Add const to bin_attribute structure as it is only passed to the
functions sysfs_{remove/create}_bin_file. The corresponding
arguments are of type const, so declare the structure to be const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03 09:28:51 -07:00
Gustavo A. R. Silva
048578a195 qlcnic: remove unnecessary static in qlcnic_dump_fw()
Remove unnecessary static on local variable fw_dump_ops.
Such variable is initialized before being used, on every
execution path throughout the function. The static has no
benefit and, removing it reduces the object file size.

This issue was detected using Coccinelle and the following semantic patch:

@bad exists@
position p;
identifier x;
type T;
@@

static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@

-static
 T x@p;
 ... when != x
     when strict
?x = e;

In the following log you can see a difference in the object file size.
This log is the output of the size command, before and after the code
change:

before:
   text    data     bss     dec     hex filename
  19032    2136      64   21232    52f0 drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.o

after:
   text    data     bss     dec     hex filename
  19020    2048       0   21068    524c drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.o

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-19 16:33:57 -07:00
Chopra, Manish
4bd7ef0b03 qlcnic: Fix tunnel offload for 82xx adapters
Qlogic's 82xx series adapter doesn't support
tunnel offloads, driver incorrectly assumes that it is
supported and causes firmware hang while running tunnel IO.

This patch fixes this by not advertising tunnel offloads
for 82xx adapters.

Signed-off-by: Manish Chopra <manish.chopra@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02 14:30:58 -04:00
Jia-Ju Bai
5ea6d691aa qlcnic: Fix a sleep-in-atomic bug in qlcnic_82xx_hw_write_wx_2M and qlcnic_82xx_hw_read_wx_2M
The driver may sleep under a write spin lock, and the function
call path is:
qlcnic_82xx_hw_write_wx_2M (acquire the lock by write_lock_irqsave)
  crb_win_lock
    qlcnic_pcie_sem_lock
      usleep_range
qlcnic_82xx_hw_read_wx_2M (acquire the lock by write_lock_irqsave)
  crb_win_lock
    qlcnic_pcie_sem_lock
      usleep_range

To fix it, the usleep_range is replaced with udelay.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-01 11:42:19 -04:00
Chopra, Manish
33c16bfd5b qlcnic: Update version to 5.3.66
Bumping up the version as couple of fixes added after 5.3.65

Signed-off-by: Manish Chopra <manish.chopra@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-11 21:39:53 -04:00
Chopra, Manish
f9c3fe2f43 qlcnic: Fix link configuration with autoneg disabled
Currently driver returns error on speed configurations
for 83xx adapter's non XGBE ports, due to this link doesn't
come up on the ports using 1000Base-T as a connector with
autoneg disabled. This patch fixes this with initializing
appropriate port type based on queried module/connector
types from hardware before any speed/autoneg configuration.

Signed-off-by: Manish Chopra <manish.chopra@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-11 21:39:53 -04:00
Pan Bian
91ec701a55 qlcnic: fix unchecked return value
Function pci_find_ext_capability() may return 0, which is an invalid
address. In function qlcnic_sriov_virtid_fn(), its return value is used
without validation. This may result in invalid memory access bugs. This
patch fixes the bug.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24 16:10:53 -04:00
Masahiro Yamada
8ab102d60a scripts/spelling.txt: add "partiton" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  partiton||partition

Link: http://lkml.kernel.org/r/1481573103-11329-7-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Bhumika Goyal
0ccea2210c qlogic: qlcnic_sysfs: constify bin_attribute structures
Declare bin_attribute structures as const as they are only passed as an
arguments to the functions device_remove_bin_file and
device_create_bin_file. These function arguments are of type const, so
bin_attribute structures having this property can be made const too.
Done using Coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct bin_attribute i@p = {...};

@ok1@
identifier r1.i;
position p,p1;
@@
(
device_remove_bin_file(...,&i@p)
|
device_create_bin_file(..., &i@p1)
)

@bad@
position p!={r1.p,ok1.p,ok1.p1};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct bin_attribute i;

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-22 15:39:09 -05:00
Philippe Reynes
49cef10ffa net: qlogic: qlcnic: use new api ethtool_{get|set}_link_ksettings
The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-20 11:22:19 -05:00
Christophe Jaillet
766a957df9 qlcnic: Fix a memory leak in error handling path
If 'dma_alloc_coherent()' fails, we should release resources allocated so
far, just as done in all other cases in this function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-20 10:33:38 -05:00
Parav Pandit
d0d7b10b05 net-next: treewide use is_vlan_dev() helper function.
This patch makes use of is_vlan_dev() function instead of flag
comparison which is exactly done by is_vlan_dev() helper function.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Jon Maxwell <jmaxwell37@gmail.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06 16:33:29 -05:00
Eric Dumazet
6ad20165d3 drivers: net: generalize napi_complete_done()
napi_complete_done() allows to opt-in for gro_flush_timeout,
added back in linux-3.19, commit 3b47d30396
("net: gro: add a per device gro flush timer")

This allows for more efficient GRO aggregation without
sacrifying latencies.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-30 15:10:42 -05:00
Jarod Wilson
caff2a87f6 ethernet/qlogic: use core min/max MTU checking
qede: min_mtu 46, max_mtu 9600
- Put define for max in qede.h

qlcnic: min_mtu 68, max_mtu 9600

CC: netdev@vger.kernel.org
CC Dept-GELinuxNICDev@qlogic.com
CC: Yuval Mintz <Yuval.Mintz@qlogic.com>
CC: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 11:34:19 -04:00
Moshe Shemesh
79aab093a0 net: Update API for VF vlan protocol 802.1ad support
Introduce new rtnl UAPI that exposes a list of vlans per VF, giving
the ability for user-space application to specify it for the VF, as an
option to support 802.1ad.
We adjusted IP Link tool to support this option.

For future use cases, the new UAPI supports multiple vlans. For now we
limit the list size to a single vlan in kernel.
Add IFLA_VF_VLAN_LIST in addition to IFLA_VF_VLAN to keep backward
compatibility with older versions of IP Link tool.

Add a vlan protocol parameter to the ndo_set_vf_vlan callback.
We kept 802.1Q as the drivers' default vlan protocol.
Suitable ip link tool command examples:
  Set vf vlan protocol 802.1ad:
    ip link set eth0 vf 1 vlan 100 proto 802.1ad
  Set vf to VST (802.1Q) mode:
    ip link set eth0 vf 1 vlan 100 proto 802.1Q
  Or by omitting the new parameter
    ip link set eth0 vf 1 vlan 100

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24 08:01:26 -04:00
Roopa Prabhu
d297653dd6 rtnetlink: fdb dump: optimize by saving last interface markers
fdb dumps spanning multiple skb's currently restart from the first
interface again for every skb. This results in unnecessary
iterations on the already visited interfaces and their fdb
entries. In large scale setups, we have seen this to slow
down fdb dumps considerably. On a system with 30k macs we
see fdb dumps spanning across more than 300 skbs.

To fix the problem, this patch replaces the existing single fdb
marker with three markers: netdev hash entries, netdevs and fdb
index to continue where we left off instead of restarting from the
first netdev. This is consistent with link dumps.

In the process of fixing the performance issue, this patch also
re-implements fix done by
commit 472681d57a ("net: ndo_fdb_dump should report -EMSGSIZE to rtnl_fdb_dump")
(with an internal fix from Wilson Kok) in the following ways:
- change ndo_fdb_dump handlers to return error code instead
of the last fdb index
- use cb->args strictly for dump frag markers and not error codes.
This is consistent with other dump functions.

Below results were taken on a system with 1000 netdevs
and 35085 fdb entries:
before patch:
$time bridge fdb show | wc -l
15065

real    1m11.791s
user    0m0.070s
sys 1m8.395s

(existing code does not return all macs)

after patch:
$time bridge fdb show | wc -l
35085

real    0m2.017s
user    0m0.113s
sys 0m1.942s

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-01 16:56:15 -07:00
Manish Chopra
b8b2372de9 qlcnic: Update version to 5.3.65
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-03 12:03:35 -07:00
Manish Chopra
fc4ca987f7 qlcnic: fix napi budget alteration
Driver modifies the supplied NAPI budget in qlcnic_83xx_msix_tx_poll()
function. Instead, it should use the budget as it is.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-03 12:03:35 -07:00
Manish Chopra
2b10d3ecf2 qlcnic: fix data structure corruption in async mbx command handling
This patch fixes a data structure corruption bug in the SRIOV VF mailbox
handler code. While handling mailbox commands from the atomic context,
driver is accessing and updating qlcnic_async_work_list_struct entry fields
in the async work list. These fields could be concurrently accessed by the
work function resulting in data corruption.

This patch restructures async mbx command handling by using a separate
async command list instead of using a list of work_struct structures.
A single work_struct is used to schedule and handle the async commands
with proper locking mechanism.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-03 12:03:35 -07:00
xypron.glpk@gmx.de
43dcff349f net: qlcnic: avoid superfluous assignement
Assigning NULL to parmeter dcb has no effect outside of the
inlined function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 13:47:00 -07:00
David S. Miller
30d0844bdc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en.h
	drivers/net/ethernet/mellanox/mlx5/core/en_main.c
	drivers/net/usb/r8152.c

All three conflicts were overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-06 10:35:22 -07:00
Sony Chacko
9216a97a12 qlcnic: add wmb() call in transmit data path.
Call wmb() to ensure writes are complete before
hardware fetches updated Tx descriptors.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 04:59:49 -04:00
David S. Miller
ee58b57100 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of overlapping changes, except the packet scheduler
conflicts which deal with the addition of the free list parameter
to qdisc_enqueue().

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 05:03:36 -04:00
Dan Carpenter
5b4d10f5e0 qlcnic: use the correct ring in qlcnic_83xx_process_rcv_ring_diag()
There is a static checker warning here "warn: mask and shift to zero"
and the code sets "ring" to zero every time.  From looking at how
QLCNIC_FETCH_RING_ID() is used in qlcnic_83xx_process_rcv_ring() the
qlcnic_83xx_hndl() should be removed.

Fixes: 4be41e92f7 ('qlcnic: 83xx data path routines')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-29 05:46:16 -04:00
Alexander Duyck
5e44f8e299 qlcnic: Replace ndo_add/del_vxlan_port with ndo_add/del_udp_enc_port
This change replaces the network device operations for adding or removing a
VXLAN port with operations that are more generically defined to be used for
any UDP offload port but provide a type.  As such by just adding a line to
verify that the offload type is VXLAN we can maintain the same
functionality.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-17 20:23:31 -07:00
Arnd Bergmann
287debd6aa net: qlcnic: don't set unused function argument
We get a warning for qlcnic_83xx_get_mac_address when building with
"make W=1":

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c: In function 'qlcnic_83xx_get_mac_address':
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c:2156:8: error: parameter 'function' set but not used [-Werror=unused-but-set-parameter]

Clearly this is harmless, but there is also no point for setting
the variable, so we can simply remove the assignment.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16 17:33:11 -07:00
David S. Miller
909b27f706 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The nf_conntrack_core.c fix in 'net' is not relevant in 'net-next'
because we no longer have a per-netns conntrack hash.

The ip_gre.c conflict as well as the iwlwifi ones were cases of
overlapping changes.

Conflicts:
	drivers/net/wireless/intel/iwlwifi/mvm/tx.c
	net/ipv4/ip_gre.c
	net/netfilter/nf_conntrack_core.c

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:32:48 -04:00
Dan Carpenter
5f46feab87 qlcnic: potential NULL dereference in qlcnic_83xx_get_minidump_template()
If qlcnic_fw_cmd_get_minidump_temp() fails then "fw_dump->tmpl_hdr" is
NULL or possibly freed.  It can lead to an oops later.

Fixes: d01a6d3c8a ('qlcnic: Add support to enable capability to extend minidump for iSCSI')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-11 23:44:56 -04:00
David S. Miller
c0cc53162a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor overlapping changes in the conflicts.

In the macsec case, the change of the default ID macro
name overlapped with the 64-bit netlink attribute alignment
fixes in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-27 15:43:10 -04:00
Manish Chopra
45c78e0219 qlcnic: Update version to 5.3.64
Just updating the version as many fixes got
accumulated over 5.3.63

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:45:04 -04:00
Hannes Frederic Sowa
50d65d7889 qlcnic: protect qlicnic_attach_func with rtnl_lock
qlcnic_attach_func requires rtnl_lock to be held.

Cc: Dept-GELinuxNICDev@qlogic.com
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-21 15:35:44 -04:00
Rajesh Borundia
819bfe764d qlcnic: Fix mailbox completion handling during spurious interrupt
o While the driver is in the middle of a MB completion processing
and it receives a spurious MB interrupt, it is mistaken as a good MB
completion interrupt leading to premature completion of the next MB
request. Fix the driver to guard against this by checking the current
state of MB processing and ignore the spurious interrupt.
Also added a stats counter to record this condition.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-10 16:15:54 -05:00
Rajesh Borundia
5bf93251ce qlcnic: Remove unnecessary usage of atomic_t
o atomic_t usage is incorrect as we are not implementing
any atomicity.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-10 16:15:54 -05:00
David S. Miller
9e0efaf6b4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-01-06 22:54:18 -05:00
Insu Yun
b77357b692 qlcnic: correctly handle qlcnic_alloc_mbx_args
Since qlcnic_alloc_mbx_args can be failed,
return value should be checked.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-04 17:14:30 -05:00
David S. Miller
c07f30ad68 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-31 18:20:10 -05:00
Julia Lawall
f45688280e qlcnic: constify qlcnic_dcb_ops structures
The qlcnic_dcb_ops structures are never modified, so declare them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-28 00:44:52 -05:00
Dan Carpenter
3358a5c0c1 qlcnic: fix a loop exit condition better
In the original code, if we succeeded on the last iteration through the
loop then we still returned failure.

Fixes: 389e4e04ad ('qlcnic: fix a timeout loop')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-24 11:02:35 -05:00
David S. Miller
b3e0d3d7ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/geneve.c

Here we had an overlapping change, where in 'net' the extraneous stats
bump was being removed whilst in 'net-next' the final argument to
udp_tunnel6_xmit_skb() was being changed.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-17 22:08:28 -05:00
Dan Carpenter
389e4e04ad qlcnic: fix a timeout loop
The problem here is that at the end of the loop we test for if
idc->vnic_wait_limit is zero, but since idc->vnic_wait_limit-- is a
post-op, it actually ends up set to (u8)-1.  I have fixed this by
moving the decrement inside the loop.

Fixes: 486a5bc77a ('qlcnic: Add support for 83xx suspend and resume.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15 13:11:05 -05:00
Eric Dumazet
d64b5e85bf net: add netif_tx_napi_add()
netif_tx_napi_add() is a variant of netif_napi_add()

It should be used by drivers that use a napi structure
to exclusively poll TX.

We do not want to add this kind of napi in napi_hash[] in following
patches, adding generic busy polling to all NAPI drivers.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-18 16:17:41 -05:00
Jarod Wilson
e824de8ae2 net/qlcnic: fix mac address restore in bond mode 5/6
The bonding driver saves a copy of slaves' original mac address and then
assigns whatever mac as needed to the slave, depending on mode. In at
least modes 5 and 6 (balance-tlb, balance-alb), it often ends up being the
mac address of another slave. On release from the bond, the original mac
address is supposed to get restored via a dev_set_mac_address() call in
the bonding driver's __bond_release_one() function, which calls the
slave's ndo_set_mac_address function, which for qlcnic, is
qlcnic_set_mac().

Now, this function tries to be somewhat intelligent and exit early if
you're trying to set the mac address to the same thing that is already
set. The problem here is that adapter->mac_addr isn't in sync with
netdev->dev_addr. The qlcnic driver still has the original mac stored in
adapter->mac_addr, while the bonding driver has updated netdev->dev_addr,
so qlcnic thinks we're trying to set the same address it already has.

I think the way to go here, since the function updates both netdev and
adapter's stored mac addresses, is to check if either of them doesn't
match the newly requested mac. Simply checking netdev's value only could
result in a similar mismatch and non-update, so look at both.

CC: Dept-GELinuxNICDev@qlogic.com
CC: netdev@vger.kernel.org
CC: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-07 13:17:31 -05:00
Julia Lawall
571f2c11b3 qlcnic: constify qlcnic_mbx_ops structure
The only instance of a qlcnic_mbx_ops structure is never modified.  Thus
the declaration of the structure and all references to the structure type
can be made const.

In the definition of the qlcnic_mailbox structure, the ops field is no
longer lined up with the other fields.  This was left as is, to avoid a lot
of trivial changes on the other lines.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-13 04:18:44 -07:00
Jiri Benc
378fddc281 qlcnic: track vxlan port count
The callback for adding vxlan port can be called with the same port for
both IPv4 and IPv6. Do not disable the offloading when the same port for
both protocols is added and later one of them removed.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-17 22:32:16 -07:00