`mf_mode' field indicates the multi-partitioning mode the device is
configured to. This method doesn't scale very well, adding a new MF mode
requires going over all the existing conditions, and deciding whether those
are needed for the new mode or not.
The patch defines a set of bit-fields for modes which are derived according
to the mode info shared by the MFW and all the configuration would be made
according to those. To add a new mode, there would be a single place where
we'll need to go and choose which bits apply and which don't.
Signed-off-by: NSudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Trivial fix to spelling mistake in DP_NOTICE message
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Trivial fix to spelling mistake in DP_INFO message text
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The strscpy() was a recent fix (net: qed: use correct strncpy() size) to
prevent passing the length of the source buffer to strncpy() and guarantee
null termination.
It misses the goal of overwriting only the first 3 characters in
"???_BIG_RAM" and "???_RAM" while keeping the rest of the string.
Use strncpy() with the length of 3, without null termination.
Signed-off-by: NDenis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Configuration information is added to the debug data collection, in
addition to register dump.
Added qed_dbg_nvm_image() that receives an image type, allocates a
buffer and reads the image. The images are saved in the buffers and the
dump size is updated.
Signed-off-by: NDenis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since nvm images attributes are cached during driver load, acquiring ptt
is not needed when calling qed_mcp_get_nvm_image().
Signed-off-by: NDenis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There may be a need for VF driver to request PF to explicitly update its
bulletin with a MAC address.
e.g. When user assigns a MAC address to VF while VF is still down,
and PF's bulletin board contains different MAC address, in this case,
when VF's interface is brought up, it gets loaded with MAC address from
bulletin board which is not desirable.

To handle this corner case, we need a new TLV to request PF to update
its bulletin board with suggested MAC.

This request will be honored only for trusted VFs.
Signed-off-by: NShahed Shaikh <shahed.shaikh@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As per existing behavior, when PF sets a MAC address for a VF
(also called as forced MAC), VF is not allowed to change its
MAC address afterwards.
This puts the limitation on few use cases such as bonding of VFs,
where bonding driver asks VF to change its MAC address.

This patch uses a VF trust mode to allow VF to change its MAC address
in spite PF has set a forced MAC for that VF.
Signed-off-by: NShahed Shaikh <shahed.shaikh@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Today, driver drops received packets which are indicated as
invalid checksum by the device. Instead of dropping such packets,
pass them to the stack with CHECKSUM_NONE indication in skb.
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NManish Chopra <manish.chopra@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The patch adds ethtool callback implementation for flash update.
Signed-off-by: NSudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds the required driver support for updating the flash or
non volatile memory of the adapter. At highlevel, flash upgrade comprises
of reading the flash images from the input file, validating the images and
writing them to the respective paritions.
Signed-off-by: NSudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds APIs for flash access.
Signed-off-by: NSudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NSudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds support for populating the flash image attributes.
Signed-off-by: NSudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This FW contains several fixes and features

RDMA Features
- SRQ support
- XRC support
- Memory window support
- RDMA low latency queue support
- RDMA bonding support

RDMA bug fixes
- RDMA remote invalidate during retransmit fix
- iWARP MPA connect interop issue with RTR fix
- iWARP Legacy DPM support
- Fix MPA reject flow
- iWARP error handling
- RQ WQE validation checks

MISC
- Fix some HSI types endianity
- New Restriction: vlan insertion in core_tx_bd_data can't be set
  for LB packets

ETH
- HW QoS offload support
- Fix vlan, dcb and sriov flow of VF sending a packet with
  inband VLAN tag instead of default VLAN
- Allow GRE version 1 offloads in RX flow
- Allow VXLAN steering

iSCSI / FcoE
- Fix bd availability checking flow
- Support 256th sge proerly in iscsi/fcoe retransmit
- Performance improvement
- Fix handle iSCSI command arrival with AHS and with immediate
- Fix ipv6 traffic class configuration

DEBUG
- Update debug utilities
Signed-off-by: NMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: NTomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: NManish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: NAriel Elior <Ariel.Elior@cavium.com>
Acked-by: NJason Gunthorpe <jgg@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since commit c5ad119f
("net: sched: pfifo_fast use skb_array") driver is exposed
to an issue where it is hitting NULL skbs while handling TX
completions. Driver uses mmiowb() to flush the writes to the
doorbell bar which is a write-combined bar, however on x86
mmiowb() does not flush the write combined buffer.

This patch fixes this problem by replacing mmiowb() with wmb()
after the write combined doorbell write so that writes are
flushed and synchronized from more than one processor.

V1->V2:
-------
This patch was marked as "superseded" in patchwork.
(Not really sure for what reason).Resending it as v2.
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NManish Chopra <manish.chopra@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch fixes spelling typos found in printk.
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Acked-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

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.

Create a new wrapper function with relaxed write operator. Use the new
wrapper when a write is following a wmb().
Signed-off-by: NSinan Kaya <okaya@codeaurora.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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: NSinan Kaya <okaya@codeaurora.org>
Acked-by: NManish Chopra <manish.chopra@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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 code to

wmb()
writel_relaxed()
mmiowb()

for multi-arch support.
Signed-off-by: NSinan Kaya <okaya@codeaurora.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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: NJoe Perches <joe@perches.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some functions definitions have either the initial open brace and/or
the closing brace outside of column 1.

Move those braces to column 1.

This allows various function analyzers like gnu complexity to work
properly for these modified functions.
Signed-off-by: NJoe Perches <joe@perches.com>
Acked-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: NPaul Moore <paul@paul-moore.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Acked-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NMartin K. Petersen <martin.petersen@oracle.com>
Acked-by: NTakashi Iwai <tiwai@suse.de>
Acked-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: NNicolin Chen <nicoleotsuka@gmail.com>
Acked-by: NMartin K. Petersen <martin.petersen@oracle.com>
Acked-by: NSteven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Assign true or false to boolean variables instead of an integer value.

This issue was detected with the help of Coccinelle.
Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: NSudarsana Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Trivial fix to spelling mistakes in DP_ERR error message text and
comments
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Link updates were not reported to qedr correctly.
Leading to cases where a link could be down, but qedr
would see it as up.
In addition, once qede was loaded, link state would be up,
regardless of the actual link state.
Signed-off-by: NMichal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: NAriel Elior <ariel.elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

FW workaround. The iWARP LL2 connection did not expect TCP packets
to arrive on it's connection. The fix drops any non-tcp packets

Fixes b5c29ca7 ("qed: iWARP CM - setup a ll2 connection for handling
SYN packets")
Signed-off-by: NMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: NAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There is a corner case in the MPA unalign flow where a FPDU header is
split over two tcp segments. The length of the first fragment in this
case was not initialized properly and should be '1'

Fixes: c7d1d839 ("qed: Add support for MPA header being split over two tcp packets")
Signed-off-by: NMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: NAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We're dereferencing "p_hwfn->p_rdma_info" but that is freed on the line
before in qed_rdma_resc_free(p_hwfn).

Fixes: 9de506a5 ("qed: Free RoCE ILT Memory on rmmod qedr")
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Rdma requires ILT Memory to be allocated for it's QPs.
Each ILT entry points to a page used by several Rdma QPs.
To avoid allocating all the memory in advance, the rdma
implementation dynamically allocates memory as more QPs are
added, however it does not dynamically free the memory.
The memory should have been freed on rmmod qedr, but isn't.
This patch adds the memory freeing on rmmod qedr (currently
it will be freed with qed is removed).

An outcome of this bug, is that if qedr is unloaded and loaded
without unloaded qed, there will be no more RoCE traffic.

The reason these are related, is that the logic of detecting the
first QP ever opened is by asking whether ILT memory for RoCE has
been allocated.

In addition, this patch modifies freeing of the Task context to
always use the PROTOCOLID_ROCE and not the protocol passed,
this is because task context for iWARP and ROCE both use the
ROCE protocol id, as opposed to the connection context.

Fixes: dbb799c3 ("qed: Initialize hardware for new protocols")
Signed-off-by: NMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: NAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Note: This is compile only tested as I have no access to the hw.
Constifying and declaring as static saves 24 bytes.

add/remove: 0/1 grow/shrink: 0/0 up/down: 0/-24 (-24)
Function                                     old     new   delta
pkt_type_str                                  24       -     -24
Total: Before=3599256, After=3599232, chg -0.00%
Signed-off-by: NHernán Gonzalez <hernan@vanguardiasur.com.ar>
Acked-by: NMichal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

gcc-8 points out that the skb_copy_to_linear_data() argument points to
the skb itself, which makes it run into a problem with overlapping
memcpy arguments:

In file included from include/linux/ip.h:20,
                 from drivers/net/ethernet/qlogic/qlge/qlge_main.c:26:
drivers/net/ethernet/qlogic/qlge/qlge_main.c: In function 'ql_realign_skb':
include/linux/skbuff.h:3378:2: error: 'memcpy' source argument is the same as destination [-Werror=restrict]
  memcpy(skb->data, from, len);

It's unclear to me what the best solution is, maybe it ought to use a
different helper that adjusts the skb data in a safe way. Simply using
memmove() here seems like the easiest workaround.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

passing the strlen() of the source string as the destination
length is pointless, and gcc-8 now warns about it:

drivers/net/ethernet/qlogic/qed/qed_debug.c: In function 'qed_grc_dump':
include/linux/string.h:253: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=]

This changes qed_grc_dump_big_ram() to instead uses the length of
the destination buffer, and use strscpy() to guarantee nul-termination.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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: NJunxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Issue found by checkpatch.
Signed-off-by: NRohit Visavalia <rohit.visavalia@softnautics.com>
Acked-by: NMichal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A tid was allocated for reserved MR during initialization but
not freed. This lead to an annoying output message during
rdma unload flow.
Signed-off-by: NMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: NAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Double reservation for kernel dedicated dpi was performed.
Once in the core module and once in qedr.
Remove the reservation from core.
Signed-off-by: NMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: NAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We need to check if p_ent->comp_mode is QED_SPQ_MODE_EBLOCK before
calling qed_spq_add_entry().  The test is fine is the mode is EBLOCK,
but if it isn't then qed_spq_add_entry() might kfree(p_ent).
Signed-off-by: NRoland Dreier <roland@purestorage.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The driver code qede_free_fp_array() depend on kfree() can be called
with a NULL pointer. This stems from the qede_alloc_fp_array()
function which either (kz)alloc memory for fp->txq or fp->rxq.
This also simplifies error handling code in case of memory allocation
failures, but xdp_rxq_info_unreg need to know the difference.

Introduce xdp_rxq_info_is_reg() to handle if a memory allocation fails
and detect this is the failure path by seeing that xdp_rxq_info was
not registred yet, which first happens after successful alloaction in
qede_init_fp().

Driver hook points for xdp_rxq_info:
 * reg  : qede_init_fp
 * unreg: qede_free_fp_array

Tested on actual hardware with samples/bpf program.

V2: Driver have no proper error path for failed XDP RX-queue info reg, as
qede_init_fp() is a void function.

Cc: everest-linux-l2@cavium.com
Cc: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: NJesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>

Use dma_zalloc_coherent and vzalloc for allocating zeroed
memory and remove unnecessary memset function.

Done using Coccinelle.
Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci
0-day tested with no failures.
Suggested-by: NLuis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: NHimanshu Jha <himanshujha199640@gmail.com>
Acked-by: NTomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: NChad Dupuis <Chad.Dupuis@cavium.com>
Signed-off-by: NManish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: NTomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>