| Commit message (Collapse) | Author | Age | Files | Lines |
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Switch to native NAPI polling, as this reduces overhead and complexity.
Normal path is faster, since one cmpxchg() is not anymore requested,
and busy polling with the NAPI polling has same performance.
Tested:
lpk50:~# cat /proc/sys/net/core/busy_read
70
lpk50:~# nstat >/dev/null;./netperf -H lpk55 -t TCP_RR;nstat
MIGRATED TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to lpk55.prod.google.com () port 0 AF_INET : first burst 0
Local /Remote
Socket Size Request Resp. Elapsed Trans.
Send Recv Size Size Time Rate
bytes Bytes bytes bytes secs. per sec
16384 87380 1 1 10.00 40095.07
16384 87380
IpInReceives 401062 0.0
IpInDelivers 401062 0.0
IpOutRequests 401079 0.0
TcpActiveOpens 7 0.0
TcpPassiveOpens 3 0.0
TcpAttemptFails 3 0.0
TcpEstabResets 5 0.0
TcpInSegs 401036 0.0
TcpOutSegs 401052 0.0
TcpOutRsts 38 0.0
UdpInDatagrams 26 0.0
UdpOutDatagrams 27 0.0
Ip6OutNoRoutes 1 0.0
TcpExtDelayedACKs 1 0.0
TcpExtTCPPrequeued 98 0.0
TcpExtTCPDirectCopyFromPrequeue 98 0.0
TcpExtTCPHPHits 4 0.0
TcpExtTCPHPHitsToUser 98 0.0
TcpExtTCPPureAcks 5 0.0
TcpExtTCPHPAcks 101 0.0
TcpExtTCPAbortOnData 6 0.0
TcpExtBusyPollRxPackets 400832 0.0
TcpExtTCPOrigDataSent 400983 0.0
IpExtInOctets 21273867 0.0
IpExtOutOctets 21261254 0.0
IpExtInNoECTPkts 401064 0.0
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sleep and avoiding waking kswapd
__GFP_WAIT has been used to identify atomic context in callers that hold
spinlocks or are in interrupts. They are expected to be high priority and
have access one of two watermarks lower than "min" which can be referred
to as the "atomic reserve". __GFP_HIGH users get access to the first
lower watermark and can be called the "high priority reserve".
Over time, callers had a requirement to not block when fallback options
were available. Some have abused __GFP_WAIT leading to a situation where
an optimisitic allocation with a fallback option can access atomic
reserves.
This patch uses __GFP_ATOMIC to identify callers that are truely atomic,
cannot sleep and have no alternative. High priority users continue to use
__GFP_HIGH. __GFP_DIRECT_RECLAIM identifies callers that can sleep and
are willing to enter direct reclaim. __GFP_KSWAPD_RECLAIM to identify
callers that want to wake kswapd for background reclaim. __GFP_WAIT is
redefined as a caller that is willing to enter direct reclaim and wake
kswapd for background reclaim.
This patch then converts a number of sites
o __GFP_ATOMIC is used by callers that are high priority and have memory
pools for those requests. GFP_ATOMIC uses this flag.
o Callers that have a limited mempool to guarantee forward progress clear
__GFP_DIRECT_RECLAIM but keep __GFP_KSWAPD_RECLAIM. bio allocations fall
into this category where kswapd will still be woken but atomic reserves
are not used as there is a one-entry mempool to guarantee progress.
o Callers that are checking if they are non-blocking should use the
helper gfpflags_allow_blocking() where possible. This is because
checking for __GFP_WAIT as was done historically now can trigger false
positives. Some exceptions like dm-crypt.c exist where the code intent
is clearer if __GFP_DIRECT_RECLAIM is used instead of the helper due to
flag manipulations.
o Callers that built their own GFP flags instead of starting with GFP_KERNEL
and friends now also need to specify __GFP_KSWAPD_RECLAIM.
The first key hazard to watch out for is callers that removed __GFP_WAIT
and was depending on access to atomic reserves for inconspicuous reasons.
In some cases it may be appropriate for them to use __GFP_HIGH.
The second key hazard is callers that assembled their own combination of
GFP flags instead of starting with something like GFP_KERNEL. They may
now wish to specify __GFP_KSWAPD_RECLAIM. It's almost certainly harmless
if it's missed in most cases as other activity will wake kswapd.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Management firmware tells driver in case bandwidth configuration for
a specific function exists, but [regretably] the same field has different
meanings depending on the multi-function mode - it can either be
a percentile value or an actual speed.
For newer multi-function modes current logic is incorrect -
driver understands values as actual speeds instead of percentages,
causing the resulting chip configuration to be incorrect.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
drivers/net/ethernet/cavium/Kconfig
The cavium conflict was overlapping dependency
changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
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On error flows its possible to free an SKB even if it was not allocated.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Current driver always uses vlan-promisc mode, i.e., it receives both
tagged and untagged traffic and lets the network stack drop packets
tagged with unrequested vlan tags.
This patch implements vlan-filtering offload in the driver -
Unless explicitly configured to promisc mode, only untagged packets or
packets tagged with requested vlans would reach the Rx flow.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Devices with up-to-date management FW will be able to store register dumps
on their persistent storage - in case management FW identifies a fatal
error it would gather and store such dumps, which could later be retrieved
using specific debug tools.
This patch adds the necessary part in the driver in order to make the
feature operational, as well as update users [under debug] during load
in case their device contains a dump of a previous crash.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds support to a new multi-function mode, enabling driver to
initialize such devices and correctly interacting with management FW
for fully utilizing their features.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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bnx2x still appears as a Broadcom driver even though the devices it
utilizes belong to Qlogic for more than a year.
This patch changes the various headers and the device strings to indicate
the correct ownership of the device.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This moves bnx2x into using 7.12.30 FW. Said firmware fixes the following:
- Packets from a VF with pvid configured which were sent with a
different vlan were transmitted instead of being discarded.
- FCoE traffic might not recover after a failue while there's traffic
to another function.
In addition, this FW opens the door for the driver to implement several
new features; Specifically, this enhances the device's support for
encapsulated packets and will allow vxlan/geneve offloads to be added in
the future, as well as vlan filtering offload.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With CONFIG_DMA_API_DEBUG=y bnx2x triggers the error "DMA-API: device
driver frees DMA memory with wrong function".
On archs where PAGE_SIZE > SGE_PAGE_SIZE it also triggers "DMA-API:
device driver frees DMA memory with different size".
Fix this by making the mapping and unmapping symmetric:
- Do not map the whole pool page at once. Instead map the
SGE_PAGE_SIZE-sized pieces individually, so they can be unmapped in
the same manner.
- What's mapped using dma_map_page() must be unmapped using
dma_unmap_page().
Tested on ppc64.
Fixes: 4cace675d687 ("bnx2x: Alloc 4k fragment for each rx ring buffer element")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Due to FW constraints, driver must make sure that transmitted SKBs will
not be too fragmented, or in the case that they are - that each 'window'
of fragments passed to the FW would contain at least an mss worth of data.
For encapsultaed packets the calculation is wrong, since it ignores the
inner headers in the calculation of the headers' length.
This could lead to a FW assertion in case of a too-fragmented encapsulated
packet.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver allocates one page for each buffer on the rx ring, which is
too much on architectures like ppc64 and can cause unexpected allocation
failures when the system is under stress. Now, we keep a memory pool
per queue, and if the architecture's PAGE_SIZE is greater than 4k, we
fragment pages and assign each 4k segment to a ring element, which
reduces the overall memory consumption on such architectures. This
helps avoiding errors like the example below:
[bnx2x_alloc_rx_sge:435(eth1)]Can't alloc sge
[c00000037ffeb900] [d000000075eddeb4] .bnx2x_alloc_rx_sge+0x44/0x200 [bnx2x]
[c00000037ffeb9b0] [d000000075ee0b34] .bnx2x_fill_frag_skb+0x1ac/0x460 [bnx2x]
[c00000037ffebac0] [d000000075ee11f0] .bnx2x_tpa_stop+0x160/0x2e8 [bnx2x]
[c00000037ffebb90] [d000000075ee1560] .bnx2x_rx_int+0x1e8/0xc30 [bnx2x]
[c00000037ffebcd0] [d000000075ee2084] .bnx2x_poll+0xdc/0x3d8 [bnx2x] (unreliable)
Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Reviewed-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Four minor merge conflicts:
1) qca_spi.c renamed the local variable used for the SPI device
from spi_device to spi, meanwhile the spi_set_drvdata() call
got moved further up in the probe function.
2) Two changes were both adding new members to codel params
structure, and thus we had overlapping changes to the
initializer function.
3) 'net' was making a fix to sk_release_kernel() which is
completely removed in 'net-next'.
4) In net_namespace.c, the rtnl_net_fill() call for GET operations
had the command value fixed, meanwhile 'net-next' adjusted the
argument signature a bit.
This also matches example merge resolutions posted by Stephen
Rothwell over the past two days.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Submit 909d9faae2a44 ("bnx2x: Prevent inner-reload while VFs exist")
contained a bug - MTU change was not prevented by it; Instead, it
`randomally' prevented bnx2x_resume() from running [harmless yet wrong].
This moves the check to its correct spot.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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These flags are redundant with dev->features. Remove them.
Just make sure to set dev->features ourselves in bnx2x_set_features()
before performing the reload of the card.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is simpler to have the TPA mode as one three-state variable.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If disable_tpa is set, remove NETIF_F_LRO from hw_features, so ethtool sees
it as "off [fixed]".
Note that setting the NETIF_F_LRO bit in dev->features in the 'else'
branch is not needed, because the bit was already set by
bnx2x_init_dev().
Then the check for disable_tpa in in bnx2x_fix_features() becomes unnecessary.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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bnx2x's 'disable_tpa=1' module option is not respected properly and TPA
(transparent packet aggregation) remains enabled. Even though the
module option causes LRO to be disabled, TPA is enabled in GRO mode.
Additionally, disabling GRO via ethtool then has no effect. One can
still observe tpa_* statistics increase and large packets being received
in tcpdump.
The bug was an unintended consequence of commit aebf6244cd39 "bnx2x: Be
more forgiving toward SW GRO".
Fix it by following the bp->disable_tpa flag when initializing fp's.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On some feature changes, driver employes an inner-reload flow where it
resets the function and re-configures it with the new required set of
parameters.
Such a flow proves fatal to any VF since those were not intended to be used
while HW is being reset underneath, causing them [at best] to lose all
connectivity.
This changes driver behavior to fail all configuration changes [e.g., mtu
change] requested of the driver in case VFs are active.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 9a2620c877454 ("bnx2x: prevent WARN during driver unload")
switched the napi/busy_lock locking mechanism from spin_lock() into
spin_lock_bh(), breaking inter-operability with netconsole, as netpoll
disables interrupts prior to calling our napi mechanism.
This switches the driver into using atomic assignments instead of the
spinlock mechanisms previously employed.
Based on initial patch from Yuval Mintz & Ariel Elior
I basically added softirq starvation avoidance, and mixture
of atomic operations, plain writes and barriers.
Note this slightly reduces the overhead for this driver when no
busy_poll sockets are in use.
Fixes: 9a2620c877454 ("bnx2x: prevent WARN during driver unload")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
arch/arm/boot/dts/imx6sx-sdb.dts
net/sched/cls_bpf.c
Two simple sets of overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
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With the commit d75b1ade567ffab ("net: less interrupt masking in NAPI") napi
repoll is done only when work_done == budget. When in busy_poll is we return 0
in napi_poll. We should return budget.
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The same macros are used for rx as well. So rename it.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch replaces the calls to netdev_alloc_skb_ip_align in the
copybreak paths.
Cc: Gary Zambrano <zambrano@broadcom.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use netdev_rss_key_fill() helper, as it provides better support for some
bonding setups.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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bnx2x_msix_fp_int() and bnx2x_interrupt() run from hard interrupt
context.
They can use napi_schedule_irqoff() instead of napi_schedule()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rearrange macros to query for storage-only modes in different MF environment.
Improves the readibility and maintainability of the code. E.g.:
- if (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp))
+ if (IS_MF_STORAGE_ONLY(bp))
In addition, this removes the need for bnx2x_is_valid_ether_addr().
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set correct bit for packed description.
Introduced in e42780b66aab88d3a82b6087bcd6095b90eecde7
bnx2x: Utilize FW 7.10.51
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This fixes a sprase warning introduced recently by commit
eeed018cbfa30 ("bnx2x: Add timestamping and PTP hardware clock support"),
as well as another unrelated sparse endian issue.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This introduces 2 new relaxations in the bnx2x driver regarding GRO:
1. Don't prevent SW GRO if HW GRO is disabled.
2. If all aggregations are disabled, when GRO configuration changes
there's no need to perform an inner-reload [since it will have no
actual effect].
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When STOP_ON_ERROR is set driver will not compile. Even if it did,
traffic will not pass without this patch as several fields which are
verified by FW/HW on the Tx path are not properly set.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use is_kdump_kernel() to detect kdump kernel, instead of
reset_devices.
CC: Ariel Elior <ariel.elior@qlogic.com>
CC: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pulling to get some TIPC fixes that a net-next series depends
upon.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Nothing defines _ASM_GENERIC_INT_L64_H, it is a weird way to check for
64 bit longs, and u64 should be printed using %llx anyway.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds a PHC to the bnx2x driver. Driver supports timestamping send/receive
PTP packets, as well as adjusting the on-chip clock.
The driver has been tested with linuxptp project.
Signed-off-by: Michal Kalderon <Michal.Kalderon@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- (L2) In some multi-function configurations, inter-PF and inter-VF
Tx switching is incorrectly enabled.
- (L2) Wrong assert code in FLR final cleanup in case it is sent not
after FLR.
- (L2) Chip may stall in very rare cases under heavy traffic with FW GRO
enabled.
- (L2) VF malicious notification error fixes.
- (L2) Default gre tunnel to IPGRE which allows proper RSS for IPGRE packets,
L2GRE traffic will reach single queue.
- (FCoE) Fix data being placed in wrong buffer when corrupt FCoE frame is
received.
- (FCoE) Burst of FIP packets with destination MAC of ALL-FCF_MACs
causes FCoE traffic to stop.
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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When TSO packet is transmitted additional BD w/o mapping is used
to describe the packed. The BD needs special handling in tx
completion.
kernel: Call Trace:
kernel: <IRQ> [<ffffffff815e19ba>] dump_stack+0x19/0x1b
kernel: [<ffffffff8105dee1>] warn_slowpath_common+0x61/0x80
kernel: [<ffffffff8105df5c>] warn_slowpath_fmt+0x5c/0x80
kernel: [<ffffffff814a8c0d>] ? find_iova+0x4d/0x90
kernel: [<ffffffff814ab0e2>] intel_unmap_page.part.36+0x142/0x160
kernel: [<ffffffff814ad0e6>] intel_unmap_page+0x26/0x30
kernel: [<ffffffffa01f55d7>] bnx2x_free_tx_pkt+0x157/0x2b0 [bnx2x]
kernel: [<ffffffffa01f8dac>] bnx2x_tx_int+0xac/0x220 [bnx2x]
kernel: [<ffffffff8101a0d9>] ? read_tsc+0x9/0x20
kernel: [<ffffffffa01f8fdb>] bnx2x_poll+0xbb/0x3c0 [bnx2x]
kernel: [<ffffffff814d041a>] net_rx_action+0x15a/0x250
kernel: [<ffffffff81067047>] __do_softirq+0xf7/0x290
kernel: [<ffffffff815f3a5c>] call_softirq+0x1c/0x30
kernel: [<ffffffff81014d25>] do_softirq+0x55/0x90
kernel: [<ffffffff810673e5>] irq_exit+0x115/0x120
kernel: [<ffffffff815f4358>] do_IRQ+0x58/0xf0
kernel: [<ffffffff815e94ad>] common_interrupt+0x6d/0x6d
kernel: <EOI> [<ffffffff810bbff7>] ? clockevents_notify+0x127/0x140
kernel: [<ffffffff814834df>] ? cpuidle_enter_state+0x4f/0xc0
kernel: [<ffffffff81483615>] cpuidle_idle_call+0xc5/0x200
kernel: [<ffffffff8101bc7e>] arch_cpu_idle+0xe/0x30
kernel: [<ffffffff810b4725>] cpu_startup_entry+0xf5/0x290
kernel: [<ffffffff815cfee1>] start_secondary+0x265/0x27b
kernel: ---[ end trace 11aa7726f18d7e80 ]---
Fixes: a848ade408b ("bnx2x: add CSUM and TSO support for encapsulation protocols")
Reported-by: Yulong Pei <ypei@redhat.com>
Cc: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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While it is legal to kfree(NULL), it is not wise to use :
put_page(virt_to_head_page(NULL))
BUG: unable to handle kernel paging request at ffffeba400000000
IP: [<ffffffffc01f5928>] virt_to_head_page+0x36/0x44 [bnx2x]
Reported-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Fixes: d46d132cc021 ("bnx2x: use netdev_alloc_frag()")
Signed-off-by: David S. Miller <davem@davemloft.net>
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Until now VFs were oblvious to the actual configured link parameters.
This patch does 2 things:
1. It enables a PF to inform its VF using the bulletin board of the link
configured, and allows the VF to present that information.
2. It adds support of `ndo_set_vf_link_state', allowing the hypervisor
to set the VF link state.
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking updates from David Miller:
1) Seccomp BPF filters can now be JIT'd, from Alexei Starovoitov.
2) Multiqueue support in xen-netback and xen-netfront, from Andrew J
Benniston.
3) Allow tweaking of aggregation settings in cdc_ncm driver, from Bjørn
Mork.
4) BPF now has a "random" opcode, from Chema Gonzalez.
5) Add more BPF documentation and improve test framework, from Daniel
Borkmann.
6) Support TCP fastopen over ipv6, from Daniel Lee.
7) Add software TSO helper functions and use them to support software
TSO in mvneta and mv643xx_eth drivers. From Ezequiel Garcia.
8) Support software TSO in fec driver too, from Nimrod Andy.
9) Add Broadcom SYSTEMPORT driver, from Florian Fainelli.
10) Handle broadcasts more gracefully over macvlan when there are large
numbers of interfaces configured, from Herbert Xu.
11) Allow more control over fwmark used for non-socket based responses,
from Lorenzo Colitti.
12) Do TCP congestion window limiting based upon measurements, from Neal
Cardwell.
13) Support busy polling in SCTP, from Neal Horman.
14) Allow RSS key to be configured via ethtool, from Venkata Duvvuru.
15) Bridge promisc mode handling improvements from Vlad Yasevich.
16) Don't use inetpeer entries to implement ID generation any more, it
performs poorly, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits)
rtnetlink: fix userspace API breakage for iproute2 < v3.9.0
tcp: fixing TLP's FIN recovery
net: fec: Add software TSO support
net: fec: Add Scatter/gather support
net: fec: Increase buffer descriptor entry number
net: fec: Factorize feature setting
net: fec: Enable IP header hardware checksum
net: fec: Factorize the .xmit transmit function
bridge: fix compile error when compiling without IPv6 support
bridge: fix smatch warning / potential null pointer dereference
via-rhine: fix full-duplex with autoneg disable
bnx2x: Enlarge the dorq threshold for VFs
bnx2x: Check for UNDI in uncommon branch
bnx2x: Fix 1G-baseT link
bnx2x: Fix link for KR with swapped polarity lane
sctp: Fix sk_ack_backlog wrap-around problem
net/core: Add VF link state control policy
net/fsl: xgmac_mdio is dependent on OF_MDIO
net/fsl: Make xgmac_mdio read error message useful
net_sched: drr: warn when qdisc is not work conserving
...
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Conflicts:
include/net/inetpeer.h
net/ipv6/output_core.c
Changes in net were fixing bugs in code removed in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
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A rmb() is required to ensure that the CQE is not read before it
is written by the adapter DMA. PCI ordering rules will make sure
the other fields are written before the marker at the end of struct
eth_fast_path_rx_cqe but without rmb() a weakly ordered processor can
process stale data.
Without the barrier we have observed various crashes including
bnx2x_tpa_start being called on queues not stopped (resulting in message
start of bin not in stop) and NULL pointer exceptions from bnx2x_rx_int.
Signed-off-by: Milton Miller <miltonm@us.ibm.com>
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The bnx2x development team has transferred from Broadcom to Qlogic.
This patch updates some obsolete email addresses to usable ones.
The bnx2x files contain headers with legal information from
Broadcom. Qlogic Legal depratment is taking their time coming up
with their own legal info. So this patch only updates contact
information. I will follow up with a patch for the headers once I
have the required info.
Signed-off-by: Ariel Elior <ariel.elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Mostly scripted conversion of the smp_mb__* barriers.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-55dhyhocezdw1dg7u19hmh1u@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This adds support in a new management feature which needs the driver versions
(bnx2x, bnx2fc and bnx2i) loaded for each interface.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Processing any incoming packets with a with a napi budget of 0
is incorrect driver behavior.
This matters as netpoll will shortly call drivers with a budget of 0
to avoid receive packet processing happening in hard irq context.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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