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47bb4b2... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: update ena driver to version 1.2.0

BugLink: http://bugs.launchpad.net/bugs/1701575

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit 8523899912b6958ef471d2393c016f87dc4f0354 net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

86aa6c2... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: update driver's rx drop statistics

BugLink: http://bugs.launchpad.net/bugs/1701575

rx drop counter is reported by the device in the keep-alive
event.
update the driver's counter with the device counter.

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit 11a9a460199f35f6cbd9d65516a262060cba4fec net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

87edfb2... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: use lower_32_bits()/upper_32_bits() to split dma address

BugLink: http://bugs.launchpad.net/bugs/1701575

In ena_com_mem_addr_set(), use the above functions to split dma address
to the lower 32 bits and the higher 16 bits.

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit 3ae5907c61587ed8327484bfdda87de0257ea73f net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

9912b2f... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: separate skb allocation to dedicated function

BugLink: http://bugs.launchpad.net/bugs/1701575

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit 4265114d5391ed92d7860472c7c8dfe866707106 net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

4846e60... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: add support for out of order rx buffers refill

BugLink: http://bugs.launchpad.net/bugs/1701575

ENA driver post Rx buffers through the Rx submission queue
for the ENA device to fill them with receive packets.
Each Rx buffer is marked with req_id in the Rx descriptor.

Newer ENA devices could consume the posted Rx buffer in out of order,
and as result the corresponding Rx completion queue will have Rx
completion descriptors with non contiguous req_id(s)

In this change the driver holds two rings.
The first ring (called free_rx_ids) is a mapping ring.
It holds all the unused request ids.
The values in this ring are from 0 to ring_size -1.

When the driver wants to allocate a new Rx buffer it uses the head of
free_rx_ids and uses it's value as the index for rx_buffer_info ring.
The req_id is also written to the Rx descriptor

Upon Rx completion,
The driver took the req_id from the completion descriptor and uses it
as index in rx_buffer_info.
The req_id is then return to the free_rx_ids ring.

This patch also adds statistics to inform when the driver receive out
of range or unused req_id.

Note:
free_rx_ids is only accessible from the napi handler, so no locking is
required

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit ad974baef2a17a170fe837ad19f10dcab63e9470 net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

61d671e... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: add reset reason for each device FLR

BugLink: http://bugs.launchpad.net/bugs/1701575

For each device reset, log to the device what is the cause
the reset occur.

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit e2eed0e307f671e37f3829dfec5dbb1fba826a15 net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

1215392... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: change sizeof() argument to be the type pointer

BugLink: http://bugs.launchpad.net/bugs/1701575

Instead of using:
memset(ptr, 0x0, sizeof(struct ...))
use:
memset(ptr, 0x0, sizeor(*ptr))

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit 917501109cf4ea4c47991f593111338811369bf5 net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

bd5f368... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: add hardware hints capability to the driver

BugLink: http://bugs.launchpad.net/bugs/1701575

With this patch, ENA device can update the ena driver about
the desired timeout values:
These values are part of the "hardware hints" which are transmitted
to the driver as Asynchronous event through ENA async
event notification queue.

In case the ENA device does not support this capability,
the driver will use its own default values.

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit 82ef30f13be0b4fea70a9c6215f7cff40bb3be63 net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

ee1c5da... by Netanel Belgazal <email address hidden> on 2017-06-23

net: ena: change return value for unsupported features unsupported return value

BugLink: http://bugs.launchpad.net/bugs/1701575

return -EOPNOTSUPP instead of -EPERM.

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit d1497638b6fedccaef875a5d9f09b3fe4ffbd22d net-next)
Signed-off-by: Kamal Mostafa <email address hidden>

921c8c3... by Netanel Belgazal <email address hidden> on 2017-06-11

net: ena: update ena driver to version 1.1.7

BugLink: http://bugs.launchpad.net/bugs/1701575

Signed-off-by: Netanel Belgazal <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
(cherry picked from commit e7ff7efae5708513a795e329909ccbe2ac367b1a)
Signed-off-by: Kamal Mostafa <email address hidden>