Clear the device description to avoid use after free because the
bsddev is not destroyed when the mlx5en module is unloaded. Only when
the parent mlx5 module is unloaded the bsddev is destroyed. This fixes
a panic on listing sysctls which refer strings in the bsddev after the
mlx5en module has been unloaded.
Sponsored by: Mellanox Technologies
MFC after: 1 week
driver. This change significantly increases the overall RX aggregation
ratio for heavily loaded networks handling 10-80 thousand simultaneous
connections.
Remove the turbo LRO code and all references to it which has now been
superceeded by the tcp_lro_queue_mbuf() function.
Tested by: Netflix
Sponsored by: Mellanox Technologies
MFC after: 1 week
This patch adds the missing pieces needed for device setup using the
mlx5en driver inside a virtual machine which is providing hardware
access through SR-IOV.
Sponsored by: Mellanox Technologies
MFC after: 1 week
Store the last doorbell write in the mlx5e_sq structure and write the
doorbell to the hardware when the transmit routine finishes
transmitting all queued mbufs.
Sponsored by: Mellanox Technologies
Tested by: Netflix
MFC after: 1 week
This patch implements a sysctl which allows setting a factor, N, for
how many work queue elements can be generated before requiring a
completion event. When a completion event happens the code simulates N
completion events instead of only one. When draining a transmit queue,
N-1 NOPs are transmitted at most, to force generation of the final
completion event. Further a timer is running every HZ ticks to flush
any remaining data off the transmit queue when the tx_completion_fact
> 1.
The goal of this feature is to reduce the PCI bandwidth needed when
transmitting data.
Sponsored by: Mellanox Technologies
Tested by: Netflix
MFC after: 1 week
function to error out early when no port module is present and doing
eeprom access. This also prevents error codes from filling up in
dmesg.
Sponsored by: Mellanox Technologies
Tested by: Netflix
MFC after: 1 week
And factor out tcp_lro_rx_done, which deduplicates the same logic with
netinet/tcp_lro.c
Reviewed by: gallatin (1st version), hps, zbb, np, Dexuan Cui <decui microsoft com>
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5725
after changing the HW LRO sysctl when previously in up state.
Reviewed by: gnn
Sponsored by: Mellanox Technologies
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D4941
coalescing and zipping multiple CQEs into a single merged CQE. The
feature is enabled by default and can be disabled by a sysctl.
Implementing this feature mlx5_cqwq_pop() has been separated from
mlx5e_get_cqe().
MFC after: 1 week
Submitted by: Mark Bloch <markb@mellanox.com>
Differential Revision: https://reviews.freebsd.org/D4598
Sponsored by: Mellanox Technologies
driver. This includes binding all interrupt and worker threads
according to the RSS configuration, setting up correct Toeplitz
hashing keys as given by RSS and setting the correct mbuf
hashtype for all received traffic.
MFC after: 1 week
Sponsored by: Mellanox Technologies
Differential Revision: https://reviews.freebsd.org/D4410
completion events can be moderated in the same way like RX completion
events. Expose this functionality by a sysctl variable.
MFC after: 1 week
Sponsored by: Mellanox Technologies
Differential Revision: https://reviews.freebsd.org/D4409
Set the port MTU and then query it and report if any problems instead.
MFC after: 1 week
Submitted by: Shahar Klein <shahark@mellanox.com>
Sponsored by: Mellanox Technologies
Differential Revision: https://reviews.freebsd.org/D4408
RX buffers from number of received packets.
Differential Revision: https://reviews.freebsd.org/D4178
Submitted by: Drew Gallatin <gallatin@freebsd.org>
Sponsored by: Mellanox Technologies
MFC after: 3 days
Setting sysctl dev....conf.hw_lro may fail if the net device lro is
turned off. Due to the nature of our sysctl handler we need to set the
values back to 0 and issue an error.
Differential Revision: https://reviews.freebsd.org/D4177
Submitted by: Shahar Klein <shahark@mellanox.com>
Sponsored by: Mellanox Technologies
MFC after: 3 days
from Mellanox Technologies. The current driver supports ethernet
speeds up to and including 100 GBit/s. Infiniband support will be
done later.
The code added is not compiled by default, which will be done by a
separate commit.
Sponsored by: Mellanox Technologies
MFC after: 2 weeks
