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Bug #13433
closed
After cxgbe transceiver is reseated, link does not return to up state
Start date:
Due date:
% Done:
100%
Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:
Description
The problem seems to appear when a non-default FEC setting is applied to the link. When the transceiver is removed and then re-inserted the link does not come back up.
A work around is to change the FEC configuration and then change it back.
Before the transceiver was removed the link_cfg was:
> 0xfffffeb1fa794a80::print -t struct port_info link_cfg
struct link_config link_cfg = {
fw_port_cap32_t link_cfg.pcaps = 0x118f007e
fw_port_cap32_t link_cfg.def_acaps = 0x10870040
fw_port_cap32_t link_cfg.acaps = 0x40
fw_port_cap32_t link_cfg.lpacaps = 0x70000
fw_port_cap32_t link_cfg.speed_caps = 0x40
u32 link_cfg.speed = 0x186a0
cc_pause_t link_cfg.requested_fc = 0x3
cc_pause_t link_cfg.fc = 0x3
cc_fec_t link_cfg.requested_fec = 0x4
cc_fec_t link_cfg.fec = 0x4
unsigned char link_cfg.autoneg = 0
unsigned char link_cfg.link_ok = 0x1
unsigned char link_cfg.link_down_rc = 0
bool link_cfg.new_module = 0 (0)
bool link_cfg.redo_l1cfg = 0 (0)
and after it was removed and re-inserted:
> 0xfffffeb1fa794a80::print -t struct port_info link_cfg
struct link_config link_cfg = {
fw_port_cap32_t link_cfg.pcaps = 0x118f007e
fw_port_cap32_t link_cfg.def_acaps = 0x870040
fw_port_cap32_t link_cfg.acaps = 0x40
fw_port_cap32_t link_cfg.lpacaps = 0x70000
fw_port_cap32_t link_cfg.speed_caps = 0x40
u32 link_cfg.speed = 0x186a0
cc_pause_t link_cfg.requested_fc = 0x3
cc_pause_t link_cfg.fc = 0x3
cc_fec_t link_cfg.requested_fec = 0x4
cc_fec_t link_cfg.fec = 0x1
unsigned char link_cfg.autoneg = 0
unsigned char link_cfg.link_ok = 0
unsigned char link_cfg.link_down_rc = 0
bool link_cfg.new_module = 0 (0)
bool link_cfg.redo_l1cfg = 0 (0)
}
The link_cfg.fec fields differ, the value in link_cfg.requested_fec should be re-applied.
Updated by Paul Winder over 1 year ago
Tested using ports with default and non-default FEC settings. In all case when the transceiver was removed and re-inserted the link came up.
Updated by Electric Monk over 1 year ago
- Status changed from In Progress to Closed
- % Done changed from 0 to 100
git commit 592b68f9130dc6c5b980b90fbb93d13a5a4c3265
commit 592b68f9130dc6c5b980b90fbb93d13a5a4c3265
Author: Paul Winder <pwinder@racktopsystems.com>
Date: 2021-02-12T16:21:27.000Z
13433 After cxgbe transceiver is reseated, link does not return to up state
Reviewed by: Robert Mustacchi <rm@fingolfin.org>
Reviewed by: Andy Fiddaman <andy@omnios.org>
Reviewed by: Igor Kozhukhov <igor@dilos.org>
Approved by: Garrett D'Amore <garrett@damore.org>
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