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yaml
---
r: 256666
b: refs/heads/master
c: e67306a
h: refs/heads/master
v: v3
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Mike Marciniszyn authored and Roland Dreier committed Jul 22, 2011
1 parent 366c034 commit 9316174
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Showing 3 changed files with 54 additions and 22 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: e800bd032c2623b10ef38a4d7d646e3e3c7bb3ad
refs/heads/master: e67306a38063d75f61d405527ff8bf1c8e92eb84
3 changes: 3 additions & 0 deletions trunk/drivers/infiniband/hw/qib/qib.h
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Expand Up @@ -1012,6 +1012,8 @@ struct qib_devdata {
u8 psxmitwait_supported;
/* cycle length of PS* counters in HW (in picoseconds) */
u16 psxmitwait_check_rate;
/* high volume overflow errors defered to tasklet */
struct tasklet_struct error_tasklet;
};

/* hol_state values */
Expand Down Expand Up @@ -1433,6 +1435,7 @@ extern struct mutex qib_mutex;
struct qib_hwerror_msgs {
u64 mask;
const char *msg;
size_t sz;
};

#define QLOGIC_IB_HWE_MSG(a, b) { .mask = a, .msg = b }
Expand Down
71 changes: 50 additions & 21 deletions trunk/drivers/infiniband/hw/qib/qib_iba7322.c
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Original file line number Diff line number Diff line change
Expand Up @@ -114,6 +114,10 @@ static ushort qib_singleport;
module_param_named(singleport, qib_singleport, ushort, S_IRUGO);
MODULE_PARM_DESC(singleport, "Use only IB port 1; more per-port buffer space");

static ushort qib_krcvq01_no_msi;
module_param_named(krcvq01_no_msi, qib_krcvq01_no_msi, ushort, S_IRUGO);
MODULE_PARM_DESC(krcvq01_no_msi, "No MSI for kctx < 2");

/*
* Receive header queue sizes
*/
Expand Down Expand Up @@ -1106,9 +1110,9 @@ static inline u32 read_7322_creg32_port(const struct qib_pportdata *ppd,
#define AUTONEG_TRIES 3 /* sequential retries to negotiate DDR */

#define HWE_AUTO(fldname) { .mask = SYM_MASK(HwErrMask, fldname##Mask), \
.msg = #fldname }
.msg = #fldname , .sz = sizeof(#fldname) }
#define HWE_AUTO_P(fldname, port) { .mask = SYM_MASK(HwErrMask, \
fldname##Mask##_##port), .msg = #fldname }
fldname##Mask##_##port), .msg = #fldname , .sz = sizeof(#fldname) }
static const struct qib_hwerror_msgs qib_7322_hwerror_msgs[] = {
HWE_AUTO_P(IBSerdesPClkNotDetect, 1),
HWE_AUTO_P(IBSerdesPClkNotDetect, 0),
Expand All @@ -1126,14 +1130,16 @@ static const struct qib_hwerror_msgs qib_7322_hwerror_msgs[] = {
HWE_AUTO_P(IBCBusFromSPCParityErr, 0),
HWE_AUTO(statusValidNoEop),
HWE_AUTO(LATriggered),
{ .mask = 0 }
{ .mask = 0, .sz = 0 }
};

#define E_AUTO(fldname) { .mask = SYM_MASK(ErrMask, fldname##Mask), \
.msg = #fldname }
.msg = #fldname, .sz = sizeof(#fldname) }
#define E_P_AUTO(fldname) { .mask = SYM_MASK(ErrMask_0, fldname##Mask), \
.msg = #fldname }
.msg = #fldname, .sz = sizeof(#fldname) }
static const struct qib_hwerror_msgs qib_7322error_msgs[] = {
E_AUTO(RcvEgrFullErr),
E_AUTO(RcvHdrFullErr),
E_AUTO(ResetNegated),
E_AUTO(HardwareErr),
E_AUTO(InvalidAddrErr),
Expand All @@ -1146,9 +1152,7 @@ static const struct qib_hwerror_msgs qib_7322error_msgs[] = {
E_AUTO(SendSpecialTriggerErr),
E_AUTO(SDmaWrongPortErr),
E_AUTO(SDmaBufMaskDuplicateErr),
E_AUTO(RcvHdrFullErr),
E_AUTO(RcvEgrFullErr),
{ .mask = 0 }
{ .mask = 0, .sz = 0 }
};

static const struct qib_hwerror_msgs qib_7322p_error_msgs[] = {
Expand All @@ -1158,7 +1162,8 @@ static const struct qib_hwerror_msgs qib_7322p_error_msgs[] = {
/*
* SDmaHaltErr is not really an error, make it clearer;
*/
{.mask = SYM_MASK(ErrMask_0, SDmaHaltErrMask), .msg = "SDmaHalted"},
{.mask = SYM_MASK(ErrMask_0, SDmaHaltErrMask), .msg = "SDmaHalted",
.sz = 11},
E_P_AUTO(SDmaDescAddrMisalignErr),
E_P_AUTO(SDmaUnexpDataErr),
E_P_AUTO(SDmaMissingDwErr),
Expand Down Expand Up @@ -1194,33 +1199,33 @@ static const struct qib_hwerror_msgs qib_7322p_error_msgs[] = {
E_P_AUTO(RcvICRCErr),
E_P_AUTO(RcvVCRCErr),
E_P_AUTO(RcvFormatErr),
{ .mask = 0 }
{ .mask = 0, .sz = 0 }
};

/*
* Below generates "auto-message" for interrupts not specific to any port or
* context
*/
#define INTR_AUTO(fldname) { .mask = SYM_MASK(IntMask, fldname##Mask), \
.msg = #fldname }
.msg = #fldname, .sz = sizeof(#fldname) }
/* Below generates "auto-message" for interrupts specific to a port */
#define INTR_AUTO_P(fldname) { .mask = MASK_ACROSS(\
SYM_LSB(IntMask, fldname##Mask##_0), \
SYM_LSB(IntMask, fldname##Mask##_1)), \
.msg = #fldname "_P" }
.msg = #fldname "_P", .sz = sizeof(#fldname "_P") }
/* For some reason, the SerDesTrimDone bits are reversed */
#define INTR_AUTO_PI(fldname) { .mask = MASK_ACROSS(\
SYM_LSB(IntMask, fldname##Mask##_1), \
SYM_LSB(IntMask, fldname##Mask##_0)), \
.msg = #fldname "_P" }
.msg = #fldname "_P", .sz = sizeof(#fldname "_P") }
/*
* Below generates "auto-message" for interrupts specific to a context,
* with ctxt-number appended
*/
#define INTR_AUTO_C(fldname) { .mask = MASK_ACROSS(\
SYM_LSB(IntMask, fldname##0IntMask), \
SYM_LSB(IntMask, fldname##17IntMask)), \
.msg = #fldname "_C"}
.msg = #fldname "_C", .sz = sizeof(#fldname "_C") }

static const struct qib_hwerror_msgs qib_7322_intr_msgs[] = {
INTR_AUTO_P(SDmaInt),
Expand All @@ -1234,11 +1239,12 @@ static const struct qib_hwerror_msgs qib_7322_intr_msgs[] = {
INTR_AUTO_P(SendDoneInt),
INTR_AUTO(SendBufAvailInt),
INTR_AUTO_C(RcvAvail),
{ .mask = 0 }
{ .mask = 0, .sz = 0 }
};

#define TXSYMPTOM_AUTO_P(fldname) \
{ .mask = SYM_MASK(SendHdrErrSymptom_0, fldname), .msg = #fldname }
{ .mask = SYM_MASK(SendHdrErrSymptom_0, fldname), \
.msg = #fldname, .sz = sizeof(#fldname) }
static const struct qib_hwerror_msgs hdrchk_msgs[] = {
TXSYMPTOM_AUTO_P(NonKeyPacket),
TXSYMPTOM_AUTO_P(GRHFail),
Expand All @@ -1247,7 +1253,7 @@ static const struct qib_hwerror_msgs hdrchk_msgs[] = {
TXSYMPTOM_AUTO_P(SLIDFail),
TXSYMPTOM_AUTO_P(RawIPV6),
TXSYMPTOM_AUTO_P(PacketTooSmall),
{ .mask = 0 }
{ .mask = 0, .sz = 0 }
};

#define IBA7322_HDRHEAD_PKTINT_SHIFT 32 /* interrupt cnt in upper 32 bits */
Expand Down Expand Up @@ -1292,7 +1298,7 @@ static void err_decode(char *msg, size_t len, u64 errs,
u64 these, lmask;
int took, multi, n = 0;

while (msp && msp->mask) {
while (errs && msp && msp->mask) {
multi = (msp->mask & (msp->mask - 1));
while (errs & msp->mask) {
these = (errs & msp->mask);
Expand All @@ -1303,9 +1309,14 @@ static void err_decode(char *msg, size_t len, u64 errs,
*msg++ = ',';
len--;
}
took = scnprintf(msg, len, "%s", msp->msg);
BUG_ON(!msp->sz);
/* msp->sz counts the nul */
took = min_t(size_t, msp->sz - (size_t)1, len);
memcpy(msg, msp->msg, took);
len -= took;
msg += took;
if (len)
*msg = '\0';
}
errs &= ~lmask;
if (len && multi) {
Expand Down Expand Up @@ -1643,6 +1654,14 @@ static noinline void handle_7322_errors(struct qib_devdata *dd)
return;
}

static void qib_error_tasklet(unsigned long data)
{
struct qib_devdata *dd = (struct qib_devdata *)data;

handle_7322_errors(dd);
qib_write_kreg(dd, kr_errmask, dd->cspec->errormask);
}

static void reenable_chase(unsigned long opaque)
{
struct qib_pportdata *ppd = (struct qib_pportdata *)opaque;
Expand Down Expand Up @@ -2724,8 +2743,10 @@ static noinline void unlikely_7322_intr(struct qib_devdata *dd, u64 istat)
unknown_7322_ibits(dd, istat);
if (istat & QIB_I_GPIO)
unknown_7322_gpio_intr(dd);
if (istat & QIB_I_C_ERROR)
handle_7322_errors(dd);
if (istat & QIB_I_C_ERROR) {
qib_write_kreg(dd, kr_errmask, 0ULL);
tasklet_schedule(&dd->error_tasklet);
}
if (istat & INT_MASK_P(Err, 0) && dd->rcd[0])
handle_7322_p_errors(dd->rcd[0]->ppd);
if (istat & INT_MASK_P(Err, 1) && dd->rcd[1])
Expand Down Expand Up @@ -3124,6 +3145,8 @@ static void qib_setup_7322_interrupt(struct qib_devdata *dd, int clearpend)
arg = dd->rcd[ctxt];
if (!arg)
continue;
if (qib_krcvq01_no_msi && ctxt < 2)
continue;
lsb = QIB_I_RCVAVAIL_LSB + ctxt;
handler = qib_7322pintr;
name = QIB_DRV_NAME " (kctx)";
Expand Down Expand Up @@ -3158,6 +3181,8 @@ static void qib_setup_7322_interrupt(struct qib_devdata *dd, int clearpend)
for (i = 0; i < ARRAY_SIZE(redirect); i++)
qib_write_kreg(dd, kr_intredirect + i, redirect[i]);
dd->cspec->main_int_mask = mask;
tasklet_init(&dd->error_tasklet, qib_error_tasklet,
(unsigned long)dd);
bail:;
}

Expand Down Expand Up @@ -6787,6 +6812,10 @@ struct qib_devdata *qib_init_iba7322_funcs(struct pci_dev *pdev,
(i >= ARRAY_SIZE(irq_table) &&
dd->rcd[i - ARRAY_SIZE(irq_table)]))
actual_cnt++;
/* reduce by ctxt's < 2 */
if (qib_krcvq01_no_msi)
actual_cnt -= dd->num_pports;

tabsize = actual_cnt;
dd->cspec->msix_entries = kmalloc(tabsize *
sizeof(struct msix_entry), GFP_KERNEL);
Expand Down

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