[PATCH] net/bnxt: enable Tx completion coalescing in hardware

[Stephen Hemminger]

On Sun, 20 Sep 2026 20:57:55 -0600
Mohammad Shuab Siddique <mohammad-shuab.siddique at broadcom.com> wrote:

> From: Mohammad Shuab Siddique <mohammad-shuab.siddique at broadcom.com>
> 
> P7 devices support Tx completion coalescing in hardware: the driver
> can program the Tx coalescing parameters during Tx ring allocation
> instead of always disabling it. Use the wthresh config option
> provided in ethdev to select the coalescing value for the Tx rings.
> 
> A value of 0 disables the feature. A value of 254 for wthresh is the
> max allowable setting; the driver converts the provided value to the
> nearest power of 2 for the hardware setting (1 rounds up to 2, which
> maps to the same COAL_4 setting as an exact 4; 254 rounds up to 256).
> 
> Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
> Signed-off-by: Mohammad Shuab Siddique <mohammad-shuab.siddique at broadcom.com>
> ---

[PATCH] net/bnxt: enable Tx completion coalescing in hardware

Error: does not apply to main without fuzz (see summary).

Warning: this adds user-visible behaviour keyed off
tx_thresh.wthresh. It needs a doc/guides/nics/bnxt.rst entry and a
release note.