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IB/qib: Improve SERDES tunning on QMH boards

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Improve the QMH SERDES tunning on initial driver load by having the
driver go through a link state change.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Mike Marciniszyn 2011-01-10 17:42:22 -08:00 committed by Roland Dreier
parent dd04e43d46
commit f2d255a078
1 changed files with 23 additions and 3 deletions
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26
drivers/infiniband/hw/qib/qib_iba7322.c
View file

@ -623,6 +623,7 @@ struct qib_chippport_specific {
u8 ibmalfusesnap;
struct qib_qsfp_data qsfp_data;
char epmsgbuf[192]; /* for port error interrupt msg buffer */
u8 bounced;
};
static struct {
@ -1742,6 +1743,8 @@ static void handle_serdes_issues(struct qib_pportdata *ppd, u64 ibcst)
}
}
static int qib_7322_set_ib_cfg(struct qib_pportdata *, int, u32);
/*
* This is per-pport error handling.
* will likely get it's own MSIx interrupt (one for each port,
@ -1878,7 +1881,23 @@ static noinline void handle_7322_p_errors(struct qib_pportdata *ppd)
IB_PHYSPORTSTATE_DISABLED)
qib_set_ib_7322_lstate(ppd, 0,
QLOGIC_IB_IBCC_LINKINITCMD_DISABLE);
else
else {
u32 lstate;
/*
* We need the current logical link state before
* lflags are set in handle_e_ibstatuschanged.
*/
lstate = qib_7322_iblink_state(ibcs);
if (IS_QMH(dd) && !ppd->cpspec->bounced &&
ltstate == IB_PHYSPORTSTATE_LINKUP &&
(lstate >= IB_PORT_INIT &&
lstate <= IB_PORT_ACTIVE)) {
ppd->cpspec->bounced = 1;
qib_7322_set_ib_cfg(ppd, QIB_IB_CFG_LSTATE,
IB_LINKCMD_DOWN | IB_LINKINITCMD_POLL);
}
/*
* Since going into a recovery state causes the link
* state to go down and since recovery is transitory,
@ -1892,6 +1911,7 @@ static noinline void handle_7322_p_errors(struct qib_pportdata *ppd)
ltstate != IB_PHYSPORTSTATE_RECOVERY_WAITRMT &&
ltstate != IB_PHYSPORTSTATE_RECOVERY_IDLE)
qib_handle_e_ibstatuschanged(ppd, ibcs);
}
}
if (*msg && iserr)
qib_dev_porterr(dd, ppd->port, "%s error\n", msg);
@ -7282,8 +7302,8 @@ static void ibsd_wr_allchans(struct qib_pportdata *ppd, int addr, unsigned data,
static void serdes_7322_los_enable(struct qib_pportdata *ppd, int enable)
{
u64 data = qib_read_kreg_port(ppd, krp_serdesctrl);
printk(KERN_INFO QIB_DRV_NAME " Turning LOS %s for port %d\n",
(enable ? "on" : "off"), ppd->port);
printk(KERN_INFO QIB_DRV_NAME " IB%u:%u Turning LOS %s\n",
ppd->dd->unit, ppd->port, (enable ? "on" : "off"));
if (enable)
data |= SYM_MASK(IBSerdesCtrl_0, RXLOSEN);
else