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  1. 27 11月, 2020 1 次提交
  3. 18 9月, 2020 1 次提交
  5. 27 8月, 2020 1 次提交
  7. 29 7月, 2020 1 次提交
    • R
      net/mlx5e: Modify uplink state on interface up/down · 7d0314b1
      由 Ron Diskin 提交于 
      When setting the PF interface up/down, notify the firmware to update
uplink state via MODIFY_VPORT_STATE, when E-Switch is enabled.

This behavior will prevent sending traffic out on uplink port when PF is
down, such as sending traffic from a VF interface which is still up.
Currently when calling mlx5e_open/close(), the driver only sends PAOS
command to notify the firmware to set the physical port state to
up/down, however, it is not sufficient. When VF is in "auto" state, it
follows the uplink state, which was not updated on mlx5e_open/close()
before this patch.

When switchdev mode is enabled and uplink representor is first enabled,
set the uplink port state value back to its FW default "AUTO".

Fixes: 63bfd399 ("net/mlx5e: Send PAOS command on interface up/down")
Signed-off-by: NRon Diskin <rondi@mellanox.com>
Reviewed-by: NRoi Dayan <roid@mellanox.com>
Reviewed-by: NMoshe Shemesh <moshe@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
      7d0314b1
  9. 25 7月, 2020 1 次提交
  11. 17 7月, 2020 1 次提交
  13. 16 7月, 2020 2 次提交
  15. 10 7月, 2020 1 次提交
    • E
      net/mlx5e: Fix port buffers cell size value · 88b3d5c9
      由 Eran Ben Elisha 提交于 
      Device unit for port buffers size, xoff_threshold and xon_threshold is
cells. Fix a bug in driver where cell unit size was hard-coded to
128 bytes. This hard-coded value is buggy, as it is wrong for some hardware
versions.

Driver to read cell size from SBCAM register and translate bytes to cell
units accordingly.

In order to fix the bug, this patch exposes SBCAM (Shared buffer
capabilities mask) layout and defines.

If SBCAM.cap_cell_size is valid, use it for all bytes to cells
calculations. If not valid, fallback to 128.

Cell size do not change on the fly per device. Instead of issuing SBCAM
access reg command every time such translation is needed, cache it in
mlx5e_dcbx as part of mlx5e_dcbnl_initialize(). Pass dcbx.port_buff_cell_sz
as a param to every function that needs bytes to cells translation.

While fixing the bug, move MLX5E_BUFFER_CELL_SHIFT macro to
en_dcbnl.c, as it is only used by that file.

Fixes: 0696d608 ("net/mlx5e: Receive buffer configuration")
Signed-off-by: NEran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: NHuy Nguyen <huyn@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
      88b3d5c9
  17. 03 7月, 2020 1 次提交
  19. 28 6月, 2020 1 次提交
  21. 18 6月, 2020 1 次提交
  23. 04 6月, 2020 1 次提交
  25. 27 5月, 2020 1 次提交
    • L
      net/mlx5: Add ability to read and write ECE options · 6b646a7e
      由 Leon Romanovsky 提交于 
      The end result of RDMA-CM ECE handshake is ECE options, which is
needed to be used while configuring data QPs. Such options can
come in any QP state, so add in/out fields to set and query
ECE options.

OUT fields:
* create_qp() - default ECE options for that type of QP.
* modify_qp() - enabled ECE options after QP state transition.

IN fields:
* create_qp() - create QP with this ECE option.
* modify_qp() - requested options. For unconnected QPs, the FW
will return an error if ECE is already configured with any options
that not equal to previously set.
Reviewed-by: NMark Zhang <markz@mellanox.com>
Reviewed-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
      6b646a7e
  27. 19 5月, 2020 1 次提交
  29. 11 5月, 2020 1 次提交
    • G
      net/mlx5: Replace zero-length array with flexible-array · b6ca09cb
      由 Gustavo A. R. Silva 提交于 
      The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: NGustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
      b6ca09cb
  31. 03 5月, 2020 1 次提交
  33. 29 4月, 2020 6 次提交
  35. 19 4月, 2020 1 次提交
  37. 28 3月, 2020 1 次提交
  39. 18 3月, 2020 1 次提交
  41. 11 3月, 2020 1 次提交
  43. 08 3月, 2020 4 次提交
  45. 05 3月, 2020 1 次提交
    • Y
      net/mlx5: Expose raw packet pacing APIs · 1326034b
      由 Yishai Hadas 提交于 
      Expose raw packet pacing APIs to be used by DEVX based applications.
The existing code was refactored to have a single flow with the new raw
APIs.

The new raw APIs considered the input of 'pp_rate_limit_context', uid,
'dedicated', upon looking for an existing entry.

This raw mode enables future device specification data in the raw
context without changing the existing logic and code.

The ability to ask for a dedicated entry gives control for application
to allocate entries according to its needs.

A dedicated entry may not be used by some other process and it also
enables the process spreading its resources to some different entries
for use different hardware resources as part of enforcing the rate.

The counter per entry was changed to be u64 to prevent any option to
overflow.
Signed-off-by: NYishai Hadas <yishaih@mellanox.com>
Acked-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
      1326034b
  47. 19 2月, 2020 1 次提交
  49. 07 2月, 2020 1 次提交
  51. 17 1月, 2020 6 次提交