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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Acked-by: Don Fry <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <[email protected]>
Acked-by: David Dillow <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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If interrupts happen before napi_enable was called, the driver will not
work as expected. Network transmissions are impossible in this state.
This bug can be reproduced easily by restarting the network interface in
a loop. After some time any network transmissions on the network
interface will fail.
This patch fixes the bug by enabling napi before enabling the network
interface interrupts.
Signed-off-by: Markus Pargmann <[email protected]>
Acked-by: Peter Korsgaard <[email protected]>
Acked-by: Mugunthan V N <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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RPS support is kind of broken on bnx2x, because only non LRO packets
get proper rx queue information. This triggers reorders, as it seems
bnx2x like to generate a non LRO packet for segment including TCP PUSH
flag : (this might be pure coincidence, but all the reorders I've
seen involve segments with a PUSH)
11:13:34.335847 IP A > B: . 415808:447136(31328) ack 1 win 457 <nop,nop,timestamp 3789336 3985797>
11:13:34.335992 IP A > B: . 447136:448560(1424) ack 1 win 457 <nop,nop,timestamp 3789336 3985797>
11:13:34.336391 IP A > B: . 448560:479888(31328) ack 1 win 457 <nop,nop,timestamp 3789337 3985797>
11:13:34.336425 IP A > B: P 511216:512640(1424) ack 1 win 457 <nop,nop,timestamp 3789337 3985798>
11:13:34.336423 IP A > B: . 479888:511216(31328) ack 1 win 457 <nop,nop,timestamp 3789337 3985798>
11:13:34.336924 IP A > B: . 512640:543968(31328) ack 1 win 457 <nop,nop,timestamp 3789337 3985798>
11:13:34.336963 IP A > B: . 543968:575296(31328) ack 1 win 457 <nop,nop,timestamp 3789337 3985798>
We must call skb_record_rx_queue() to properly give to RPS (and more
generally for TX queue selection on forward path) the receive queue
information.
Similar fix is needed for skb_mark_napi_id(), but will be handled
in a separate patch to ease stable backports.
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Willem de Bruijn <[email protected]>
Cc: Eilon Greenstein <[email protected]>
Acked-by: Dmitry Kravkov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Mellanox ConnectX architecture is: mlx4_core is the lower level
PCI driver which register on the PCI id, and protocol specific drivers
are depended on it: mlx4_en - for Ethernet and mlx4_ib for Infiniband.
NIC could have multiple ports which can change their type dynamically.
We use the request_module() call to load the relevant protocol driver
when needed: on loading time or at port type change event.
Signed-off-by: Eyal Perry <[email protected]>
Signed-off-by: Amir Vadai <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Clean up warning added by commit fe6f700d "net/mlx4_core: Respond to
operation request by firmware".
Signed-off-by: Amir Vadai <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Small code cleanup:
1. change MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN to MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN
2. put MLX4_SET_PORT_PRIO2TC and MLX4_SET_PORT_SCHEDULER in the same union with the
other MLX4_SET_PORT_yyy
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: Amir Vadai <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Remove code that triggers trivial build warnings.
drivers/net/ethernet/mellanox/mlx4/cmd.c: In function ‘mlx4_set_vf_vlan’:
drivers/net/ethernet/mellanox/mlx4/cmd.c:2256: warning: variable ‘vf_oper’ set but not used
drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_map_sw_to_hw_steering_mode’:
drivers/net/ethernet/mellanox/mlx4/mcg.c:648: warning: comparison of unsigned expression < 0 is always false
drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_map_sw_to_hw_steering_id’:
drivers/net/ethernet/mellanox/mlx4/mcg.c:685: warning: comparison of unsigned expression < 0 is always false
drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_hw_rule_sz’:
drivers/net/ethernet/mellanox/mlx4/mcg.c:712: warning: comparison of unsigned expression < 0 is always false
drivers/net/ethernet/mellanox/mlx4/fw.c: In function ‘mlx4_opreq_action’:
drivers/net/ethernet/mellanox/mlx4/fw.c:1732: warning: variable ‘type_m’ set but not used
drivers/net/ethernet/mellanox/mlx4/srq.c:302: warning: no previous prototype for ‘mlx4_srq_lookup’
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: Amir Vadai <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Report the LPA by checking mii_if_info, instead of just saying "no LPA" every
time.
Cc: David S. Miller <[email protected]>
Cc: Jingoo Han <[email protected]>
Cc: Mugunthan V N <[email protected]>
Signed-off-by: Nikita Kiryanov <[email protected]>
Signed-off-by: Igor Grinberg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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A Davicom application note for the DM9000 network device recommends
performing software reset twice to correctly initialise the device.
Without this reset some devices fail to initialise correctly on
system startup.
Cc: David S. Miller <[email protected]>
Cc: Jingoo Han <[email protected]>
Cc: Mugunthan V N <[email protected]>
Signed-off-by: Michael Abbott <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Take the phy out of reset explicitly during system resume to avoid
losing network connectivity.
Cc: David S. Miller <[email protected]>
Cc: Jingoo Han <[email protected]>
Cc: Mugunthan V N <[email protected]>
Signed-off-by: Nikita Kiryanov <[email protected]>
Signed-off-by: Igor Grinberg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Some of the changes introduced in commit 6741f40 (DM9000B: driver
initialization upgrade) break functionality on DM9000A
(error message during NFS boot: "dm9000 dm9000.0: eth0: link down")
Since the changes were meant to serve only DM9000B, make them
dependent on the chip type.
Cc: David S. Miller <[email protected]>
Cc: Jingoo Han <[email protected]>
Cc: Mugunthan V N <[email protected]>
Signed-off-by: Nikita Kiryanov <[email protected]>
Signed-off-by: Igor Grinberg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband updates from Roland Dreier:
"Last batch of IB changes for 3.12: many mlx5 hardware driver fixes
plus one trivial semicolon cleanup"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB: Remove unnecessary semicolons
IB/mlx5: Ensure proper synchronization accessing memory
IB/mlx5: Fix alignment of reg umr gather buffers
IB/mlx5: Fix eq names to display nicely in /proc/interrupts
mlx5: Fix error code translation from firmware to driver
IB/mlx5: Fix opt param mask according to firmware spec
mlx5: Fix opt param mask for sq err to rts transition
IB/mlx5: Disable atomic operations
mlx5: Fix layout of struct mlx5_init_seg
mlx5: Keep polling to reclaim pages while any returned
IB/mlx5: Avoid async events on invalid port number
IB/mlx5: Decrease memory consumption of mr caches
mlx5: Remove checksum on command interface commands
IB/mlx5: Fix memory leak in mlx5_ib_create_srq
IB/mlx5: Flush cache workqueue before destroying it
IB/mlx5: Fix send work queue size calculation
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Correct spelling typo within various part of the kernel
Signed-off-by: Masanari Iida <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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SMC_outw invokes an endian-aware I/O accessor, which may change the data
endianness before writing to the device. This is not suitable for data
transfers where the memory buffer is simply a string of bytes that does
not require any byte-swapping.
This patches fixes the smc91x SMC_PUSH_DATA macro so that it uses the
string I/O accessor for outputting the leading or trailing halfwords on
halfword-aligned buffers.
Cc: <[email protected]>
Cc: Nicolas Pitre <[email protected]>
Cc: David S. Miller <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Acked-by: Nicolas Pitre <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Nguyen Hong Ky posted a patch to correct RX packet errors on R8A7740 which
was applied as 2c6221e4a5aab417 ("net: sh_eth: Fix RX packets errors on
R8A7740"). Unfortunately sh_eth.c contains many similar instances
of struct sh_eth_cpu_data and the patch was miss-applied, updating
sh7734_data instead of r8a7740_data.
This patch corrects this problem by.
1. Reverting the change to sh7734_data and;
2. Applying the change to r8a7740_data.
Signed-off-by: Simon Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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It's helpful for a driver to put the pci slot name in its interrupt
names, so /proc/interrupts will show the pci slot of the device.
Signed-off-by: Sagi Grimberg <[email protected]>
Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
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Limits exceeded should be translated to ENOMEM.
Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
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Change mlx5_reclaim_startup_pages() to keep polling while any pages
are returned. If none are returned, keep polling for five more seconds
before exiting with an error message.
Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
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Checksum calculations consume CPU resources and can be significant to
the rate of resource creation/destruction.
Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
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Update the version number of the driver.
Signed-off-by: Catherine Sullivan <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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This change brings support for 64 bit netstats to the driver. Previously
the stats were 64 bit but highly racy due to the fact that 64 bit
transactions are not atomic on 32 bit systems. This change makes is so
that the 64 bit byte and packet stats are reliable on all architectures.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Allocate the queue pairs individually instead of as a group. This
allows for much easier queue management as it is possible to dynamically
resize the queues without having to free and allocate the entire block.
Ease statistic collection by treating Tx/Rx queue pairs as a single
unit. Each pair is allocated together and starts with a Tx queue and
ends with an Rx queue. By ordering them this way it is possible to know
the Rx offset based on a pointer to the Tx queue.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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This replaces the ring container array with a linked list. The idea is
to make the logic much easier to deal with since this will allow us to
call a simple helper function from the q_vectors to go through the
entire list.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Allocate the q_vectors individually. The advantage to this is that it
allows for easier freeing and allocation. In addition it makes it so
that we could do node specific allocations at some point in the future.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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This makes it so that the Tx and Rx byte and packet counts are
separated from the rest of the statistics. This allows for better
isolation of these stats when we move them into the 64 bit statistics.
Simplify things by re-ordering how the stats display in ethtool.
Instead of displaying all of the Tx queues as a block, followed by all
the Rx queues, the new order is Tx[0], Rx[0], Tx[1], Rx[1], ..., Tx[n],
Rx[n]. This reduces the loops and cleans up the display for testing
purposes since it is very easy to verify if flow director is doing the
right thing as the Tx and Rx queue pair are shown in pairs.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Implement BQL (byte queue limit) support in i40e.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Drop Tx flag and TXSW which is tested but never set.
As a result of this change we can drop a complicated check that always
resulted in the final result of i40e_tx_csum being equal to the
CHECKSUM_PARTIAL value. As such we can replace the entire function call
with just a check for skb->summed == CHECKSUM_PARTIAL.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Sync the fast path for i40e_tx_map and i40e_clean_tx_irq so that they
are similar to igb and ixgbe.
- Only update the Tx descriptor ring in tx_map
- Make skb mapping always on the first buffer in the chain
- Drop the use of MAPPED_AS_PAGE Tx flag
- Only store flags on the first buffer_info structure
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Avoid directly incrementing next_to_use for multiple reasons. The main
reason being that if we directly increment it then it can attain a state
where it is equal to the ring count. Technically this is a state it
should not be able to reach but the way this is written it now can.
This patch pulls the value off into a register and then increments it
and writes back either the value or 0 depending on if the value is equal
to the ring count.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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- drop the mapped_as_page u8 from the Tx buffer info as it was unused
- use the DMA unmap accessors for Tx DMA
- replace checks of DMA with checks of the unmap length to verify if an
unmap is needed
- update the Tx buffer layout to make it consistent with igb, ixgbe
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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The Tx "completed" stat was part of the original rewrite for detecting
Tx hangs. However some time ago in ixgbe I determined that we could
just use the packets stat instead. Since then this stat was
removed from ixgbe and it serves no purpose in i40e so it can be
dropped.
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Link events should not print to the log until the device is
administratively up.
Signed-off-by: Anjali Singhai <[email protected]>
Signed-off-by: Jesse Brandeburg <[email protected]>
Tested-by: Kavindya Deegala <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Powerpc is a mess of implicit includes by prom.h. Add the necessary
explicit includes to drivers in preparation of prom.h cleanup.
Signed-off-by: Rob Herring <[email protected]>
Acked-by: Grant Likely <[email protected]>
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While powerpc is a mess of implicit includes by prom.h, microblaze just
copied this and is easily fixed. Add the necessary explicit includes and
remove unnecessary includes and other parts from prom.h
Signed-off-by: Rob Herring <[email protected]>
Acked-by: Grant Likely <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: [email protected]
Cc: [email protected]
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Signed-off-by: Ajit Khaparde <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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SkyHawk-R can support RoCE. Add code to display RoCE specific
counters maintained in hardware.
Signed-off-by: Ajit Khaparde <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Moving to version 2 of GET_STATS command as SkyHawk-R supports
higher number of rings.
Signed-off-by: Ajit Khaparde <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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