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Code Issues Releases Wiki Activity

IB/core: Add more speed parsing in ib_get_width_and_speed() 

When the Ethernet driver does not provide the number of lanes
in the __ethtool_get_link_ksettings() response, the function
ib_get_width_and_speed() does not take consideration of 50G,
100G and 200G speeds while calculating the IB width and speed.
Update the width and speed for the above netdev speeds.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1690966823-8159-1-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Kalesh AP 2023-08-02 02:00:23 -07:00 committed by Leon Romanovsky
parent 40cc695d63
commit ca60fd116c
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/infiniband/core/verbs.c
View File

@ -1899,9 +1899,18 @@ static void ib_get_width_and_speed(u32 netdev_speed, u32 lanes,
} else if (netdev_speed <= SPEED_40000) {
*width = IB_WIDTH_4X;
*speed = IB_SPEED_FDR10;
} else {
} else if (netdev_speed <= SPEED_50000) {
*width = IB_WIDTH_2X;
*speed = IB_SPEED_EDR;
} else if (netdev_speed <= SPEED_100000) {
*width = IB_WIDTH_4X;
*speed = IB_SPEED_EDR;
} else if (netdev_speed <= SPEED_200000) {
*width = IB_WIDTH_4X;
*speed = IB_SPEED_HDR;
} else {
*width = IB_WIDTH_4X;
*speed = IB_SPEED_NDR;
}
return;