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-rw-r--r--drivers/infiniband/hw/ipath/ipath_iba6120.c61
-rw-r--r--drivers/infiniband/hw/ipath/ipath_iba7220.c76
-rw-r--r--drivers/infiniband/hw/ipath/ipath_kernel.h13
-rw-r--r--drivers/infiniband/hw/ipath/ipath_stats.c8
4 files changed, 155 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index 421cc2af891f..fbf8c5379ea8 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -721,6 +721,12 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
INFINIPATH_HWE_SERDESPLLFAILED);
}
+ dd->ibdeltainprog = 1;
+ dd->ibsymsnap =
+ ipath_read_creg32(dd, dd->ipath_cregs->cr_ibsymbolerrcnt);
+ dd->iblnkerrsnap =
+ ipath_read_creg32(dd, dd->ipath_cregs->cr_iblinkerrrecovcnt);
+
val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0);
config1 = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig1);
@@ -810,6 +816,36 @@ static void ipath_pe_quiet_serdes(struct ipath_devdata *dd)
{
u64 val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0);
+ if (dd->ibsymdelta || dd->iblnkerrdelta ||
+ dd->ibdeltainprog) {
+ u64 diagc;
+ /* enable counter writes */
+ diagc = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwdiagctrl);
+ ipath_write_kreg(dd, dd->ipath_kregs->kr_hwdiagctrl,
+ diagc | INFINIPATH_DC_COUNTERWREN);
+
+ if (dd->ibsymdelta || dd->ibdeltainprog) {
+ val = ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt);
+ if (dd->ibdeltainprog)
+ val -= val - dd->ibsymsnap;
+ val -= dd->ibsymdelta;
+ ipath_write_creg(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt, val);
+ }
+ if (dd->iblnkerrdelta || dd->ibdeltainprog) {
+ val = ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt);
+ if (dd->ibdeltainprog)
+ val -= val - dd->iblnkerrsnap;
+ val -= dd->iblnkerrdelta;
+ ipath_write_creg(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt, val);
+ }
+
+ /* and disable counter writes */
+ ipath_write_kreg(dd, dd->ipath_kregs->kr_hwdiagctrl, diagc);
+ }
val |= INFINIPATH_SERDC0_TXIDLE;
ipath_dbg("Setting TxIdleEn on serdes (config0 = %llx)\n",
(unsigned long long) val);
@@ -1749,6 +1785,31 @@ static void ipath_pe_config_jint(struct ipath_devdata *dd, u16 a, u16 b)
static int ipath_pe_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
{
+ if (ibup) {
+ if (dd->ibdeltainprog) {
+ dd->ibdeltainprog = 0;
+ dd->ibsymdelta +=
+ ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt) -
+ dd->ibsymsnap;
+ dd->iblnkerrdelta +=
+ ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt) -
+ dd->iblnkerrsnap;
+ }
+ } else {
+ dd->ipath_lli_counter = 0;
+ if (!dd->ibdeltainprog) {
+ dd->ibdeltainprog = 1;
+ dd->ibsymsnap =
+ ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt);
+ dd->iblnkerrsnap =
+ ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt);
+ }
+ }
+
ipath_setup_pe_setextled(dd, ipath_ib_linkstate(dd, ibcs),
ipath_ib_linktrstate(dd, ibcs));
return 0;
diff --git a/drivers/infiniband/hw/ipath/ipath_iba7220.c b/drivers/infiniband/hw/ipath/ipath_iba7220.c
index 9839e20119bc..3b38bc9a331d 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba7220.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba7220.c
@@ -951,6 +951,12 @@ static int ipath_7220_bringup_serdes(struct ipath_devdata *dd)
INFINIPATH_HWE_SERDESPLLFAILED);
}
+ dd->ibdeltainprog = 1;
+ dd->ibsymsnap =
+ ipath_read_creg32(dd, dd->ipath_cregs->cr_ibsymbolerrcnt);
+ dd->iblnkerrsnap =
+ ipath_read_creg32(dd, dd->ipath_cregs->cr_iblinkerrrecovcnt);
+
if (!dd->ipath_ibcddrctrl) {
/* not on re-init after reset */
dd->ipath_ibcddrctrl =
@@ -1084,6 +1090,37 @@ static void ipath_7220_config_jint(struct ipath_devdata *dd,
static void ipath_7220_quiet_serdes(struct ipath_devdata *dd)
{
u64 val;
+ if (dd->ibsymdelta || dd->iblnkerrdelta ||
+ dd->ibdeltainprog) {
+ u64 diagc;
+ /* enable counter writes */
+ diagc = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwdiagctrl);
+ ipath_write_kreg(dd, dd->ipath_kregs->kr_hwdiagctrl,
+ diagc | INFINIPATH_DC_COUNTERWREN);
+
+ if (dd->ibsymdelta || dd->ibdeltainprog) {
+ val = ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt);
+ if (dd->ibdeltainprog)
+ val -= val - dd->ibsymsnap;
+ val -= dd->ibsymdelta;
+ ipath_write_creg(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt, val);
+ }
+ if (dd->iblnkerrdelta || dd->ibdeltainprog) {
+ val = ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt);
+ if (dd->ibdeltainprog)
+ val -= val - dd->iblnkerrsnap;
+ val -= dd->iblnkerrdelta;
+ ipath_write_creg(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt, val);
+ }
+
+ /* and disable counter writes */
+ ipath_write_kreg(dd, dd->ipath_kregs->kr_hwdiagctrl, diagc);
+ }
+
dd->ipath_flags &= ~IPATH_IB_AUTONEG_INPROG;
wake_up(&dd->ipath_autoneg_wait);
cancel_delayed_work(&dd->ipath_autoneg_work);
@@ -2325,7 +2362,7 @@ static void try_auto_neg(struct ipath_devdata *dd)
static int ipath_7220_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
{
- int ret = 0;
+ int ret = 0, symadj = 0;
u32 ltstate = ipath_ib_linkstate(dd, ibcs);
dd->ipath_link_width_active =
@@ -2368,6 +2405,13 @@ static int ipath_7220_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
ipath_dbg("DDR negotiation try, %u/%u\n",
dd->ipath_autoneg_tries,
IPATH_AUTONEG_TRIES);
+ if (!dd->ibdeltainprog) {
+ dd->ibdeltainprog = 1;
+ dd->ibsymsnap = ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt);
+ dd->iblnkerrsnap = ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt);
+ }
try_auto_neg(dd);
ret = 1; /* no other IB status change processing */
} else if ((dd->ipath_flags & IPATH_IB_AUTONEG_INPROG)
@@ -2388,6 +2432,7 @@ static int ipath_7220_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
set_speed_fast(dd,
dd->ipath_link_speed_enabled);
wake_up(&dd->ipath_autoneg_wait);
+ symadj = 1;
} else if (dd->ipath_flags & IPATH_IB_AUTONEG_FAILED) {
/*
* clear autoneg failure flag, and do setup
@@ -2403,6 +2448,7 @@ static int ipath_7220_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
IBA7220_IBC_IBTA_1_2_MASK;
ipath_write_kreg(dd,
IPATH_KREG_OFFSET(IBNCModeCtrl), 0);
+ symadj = 1;
}
}
/*
@@ -2416,9 +2462,13 @@ static int ipath_7220_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
IB_WIDTH_4X)) == (IB_WIDTH_1X | IB_WIDTH_4X)
&& dd->ipath_link_width_active == IB_WIDTH_1X
&& dd->ipath_x1_fix_tries < 3) {
- if (++dd->ipath_x1_fix_tries == 3)
+ if (++dd->ipath_x1_fix_tries == 3) {
dev_info(&dd->pcidev->dev,
"IB link is in 1X mode\n");
+ if (!(dd->ipath_flags &
+ IPATH_IB_AUTONEG_INPROG))
+ symadj = 1;
+ }
else {
ipath_cdbg(VERBOSE, "IB 1X in "
"auto-width, try %u to be "
@@ -2429,7 +2479,8 @@ static int ipath_7220_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
dd->ipath_f_xgxs_reset(dd);
ret = 1; /* skip other processing */
}
- }
+ } else if (!(dd->ipath_flags & IPATH_IB_AUTONEG_INPROG))
+ symadj = 1;
if (!ret) {
dd->delay_mult = rate_to_delay
@@ -2440,6 +2491,25 @@ static int ipath_7220_ib_updown(struct ipath_devdata *dd, int ibup, u64 ibcs)
}
}
+ if (symadj) {
+ if (dd->ibdeltainprog) {
+ dd->ibdeltainprog = 0;
+ dd->ibsymdelta += ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt) -
+ dd->ibsymsnap;
+ dd->iblnkerrdelta += ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt) -
+ dd->iblnkerrsnap;
+ }
+ } else if (!ibup && !dd->ibdeltainprog
+ && !(dd->ipath_flags & IPATH_IB_AUTONEG_INPROG)) {
+ dd->ibdeltainprog = 1;
+ dd->ibsymsnap = ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_ibsymbolerrcnt);
+ dd->iblnkerrsnap = ipath_read_creg32(dd,
+ dd->ipath_cregs->cr_iblinkerrrecovcnt);
+ }
+
if (!ret)
ipath_setup_7220_setextled(dd, ipath_ib_linkstate(dd, ibcs),
ltstate);
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 0bd8bcb184a1..aa84153b731b 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -355,6 +355,19 @@ struct ipath_devdata {
/* errors masked because they occur too fast */
ipath_err_t ipath_maskederrs;
u64 ipath_lastlinkrecov; /* link recoveries at last ACTIVE */
+ /* these 5 fields are used to establish deltas for IB Symbol
+ * errors and linkrecovery errors. They can be reported on
+ * some chips during link negotiation prior to INIT, and with
+ * DDR when faking DDR negotiations with non-IBTA switches.
+ * The chip counters are adjusted at driver unload if there is
+ * a non-zero delta.
+ */
+ u64 ibdeltainprog;
+ u64 ibsymdelta;
+ u64 ibsymsnap;
+ u64 iblnkerrdelta;
+ u64 iblnkerrsnap;
+
/* time in jiffies at which to re-enable maskederrs */
unsigned long ipath_unmasktime;
/* count of egrfull errors, combined for all ports */
diff --git a/drivers/infiniband/hw/ipath/ipath_stats.c b/drivers/infiniband/hw/ipath/ipath_stats.c
index c8e3d65f0de8..f63e143e3292 100644
--- a/drivers/infiniband/hw/ipath/ipath_stats.c
+++ b/drivers/infiniband/hw/ipath/ipath_stats.c
@@ -112,6 +112,14 @@ u64 ipath_snap_cntr(struct ipath_devdata *dd, ipath_creg creg)
dd->ipath_lastrpkts = val;
}
val64 = dd->ipath_rpkts;
+ } else if (creg == dd->ipath_cregs->cr_ibsymbolerrcnt) {
+ if (dd->ibdeltainprog)
+ val64 -= val64 - dd->ibsymsnap;
+ val64 -= dd->ibsymdelta;
+ } else if (creg == dd->ipath_cregs->cr_iblinkerrrecovcnt) {
+ if (dd->ibdeltainprog)
+ val64 -= val64 - dd->iblnkerrsnap;
+ val64 -= dd->iblnkerrdelta;
} else
val64 = (u64) val;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.