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IB/ipath: Minor cleanup of unused fields and chip-specific errors 

Clean up some unused header fields, minor related cleanup.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Dave Olson 2008-01-08 01:51:46 -08:00 committed by Roland Dreier
parent 359193ef43
commit ddb70c83a5
2 changed files with 25 additions and 59 deletions
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77
drivers/infiniband/hw/ipath/ipath_iba6120.c
View File

@ -373,10 +373,28 @@ static const struct ipath_hwerror_msgs ipath_6120_hwerror_msgs[] = {
INFINIPATH_HWE_TXEMEMPARITYERR_PIOPBC) \
<< INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT)
static int ipath_pe_txe_recover(struct ipath_devdata *);
static void ipath_pe_put_tid_2(struct ipath_devdata *, u64 __iomem *,
u32, unsigned long);
/*
* On platforms using this chip, and not having ordered WC stores, we
* can get TXE parity errors due to speculative reads to the PIO buffers,
* and this, due to a chip bug can result in (many) false parity error
* reports. So it's a debug print on those, and an info print on systems
* where the speculative reads don't occur.
*/
static void ipath_pe_txe_recover(struct ipath_devdata *dd)
{
if (ipath_unordered_wc())
ipath_dbg("Recovering from TXE PIO parity error\n");
else {
++ipath_stats.sps_txeparity;
dev_info(&dd->pcidev->dev,
"Recovering from TXE PIO parity error\n");
}
}
/**
* ipath_pe_handle_hwerrors - display hardware errors.
* @dd: the infinipath device
@ -456,35 +474,11 @@ static void ipath_pe_handle_hwerrors(struct ipath_devdata *dd, char *msg,
* occur if a processor speculative read is done to the PIO
* buffer while we are sending a packet, for example.
*/
if ((hwerrs & TXE_PIO_PARITY) && ipath_pe_txe_recover(dd))
if (hwerrs & TXE_PIO_PARITY) {
ipath_pe_txe_recover(dd);
hwerrs &= ~TXE_PIO_PARITY;
if (hwerrs) {
/*
* if any set that we aren't ignoring only make the
* complaint once, in case it's stuck or recurring,
* and we get here multiple times
* Force link down, so switch knows, and
* LEDs are turned off
*/
if (dd->ipath_flags & IPATH_INITTED) {
ipath_set_linkstate(dd, IPATH_IB_LINKDOWN);
ipath_setup_pe_setextled(dd,
INFINIPATH_IBCS_L_STATE_DOWN,
INFINIPATH_IBCS_LT_STATE_DISABLED);
ipath_dev_err(dd, "Fatal Hardware Error (freeze "
"mode), no longer usable, SN %.16s\n",
dd->ipath_serial);
isfatal = 1;
}
/*
* Mark as having had an error for driver, and also
* for /sys and status word mapped to user programs.
* This marks unit as not usable, until reset
*/
*dd->ipath_statusp &= ~IPATH_STATUS_IB_READY;
*dd->ipath_statusp |= IPATH_STATUS_HWERROR;
dd->ipath_flags &= ~IPATH_INITTED;
} else {
if (!hwerrs) {
static u32 freeze_cnt;
freeze_cnt++;
@ -1569,33 +1563,6 @@ static void ipath_pe_read_counters(struct ipath_devdata *dd,
cntrs->RxDlidFltrCnt = 0;
}
/*
* On platforms using this chip, and not having ordered WC stores, we
* can get TXE parity errors due to speculative reads to the PIO buffers,
* and this, due to a chip bug can result in (many) false parity error
* reports. So it's a debug print on those, and an info print on systems
* where the speculative reads don't occur.
* Because we can get lots of false errors, we have no upper limit
* on recovery attempts on those platforms.
*/
static int ipath_pe_txe_recover(struct ipath_devdata *dd)
{
if (ipath_unordered_wc())
ipath_dbg("Recovering from TXE PIO parity error\n");
else {
int cnt = ++ipath_stats.sps_txeparity;
if (cnt >= IPATH_MAX_PARITY_ATTEMPTS) {
if (cnt == IPATH_MAX_PARITY_ATTEMPTS)
ipath_dev_err(dd,
"Too many attempts to recover from "
"TXE parity, giving up\n");
return 0;
}
dev_info(&dd->pcidev->dev,
"Recovering from TXE PIO parity error\n");
}
return 1;
}
/* no interrupt fallback for these chips */
static int ipath_pe_nointr_fallback(struct ipath_devdata *dd)

5
drivers/infiniband/hw/ipath/ipath_kernel.h
View File

@ -396,14 +396,13 @@ struct ipath_devdata {
unsigned long ipath_wc_len;
/* ref count for each pkey */
atomic_t ipath_pkeyrefs[4];
/* shadow copy of all exptids physaddr; used only by funcsim */
u64 *ipath_tidsimshadow;
/* shadow copy of struct page *'s for exp tid pages */
struct page **ipath_pageshadow;
/* shadow copy of dma handles for exp tid pages */
dma_addr_t *ipath_physshadow;
u64 __iomem *ipath_egrtidbase;
/* lock to workaround chip bug 9437 */
/* lock to workaround chip bug 9437 and others */
spinlock_t ipath_kernel_tid_lock;
spinlock_t ipath_tid_lock;
spinlock_t ipath_sendctrl_lock;