xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IB/qib: Hold links until tuning data is available

Browse Source 
Hold the link state machine until the tuning data is read from the
QSFP EEPROM so correct tuning settings are applied before the state
machine attempts to bring the link up.  Link is also held on cable
unplug in case a different cable is used.

Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Mitko Haralanov
2011-10-19 18:46:40 -04:00
committed by Roland Dreier
parent 44d75d3d92
commit dde05cbdf8
4 changed files with 94 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/hw/qib/qib_qsfp.h
View File

@@ -34,6 +34,7 @@
#define QSFP_DEV 0xA0
#define QSFP_PWR_LAG_MSEC 2000
#define QSFP_MODPRS_LAG_MSEC 20
/*
* Below are masks for various QSFP signals, for Port 1.
@@ -181,6 +182,7 @@ struct qib_qsfp_data {
extern int qib_refresh_qsfp_cache(struct qib_pportdata *ppd,
struct qib_qsfp_cache *cp);
extern int qib_qsfp_mod_present(struct qib_pportdata *ppd);
extern void qib_qsfp_init(struct qib_qsfp_data *qd,
void (*fevent)(struct work_struct *));
extern void qib_qsfp_deinit(struct qib_qsfp_data *qd);