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-rw-r--r--drivers/infiniband/hw/qib/qib_driver.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c
index 9cd1936..3ed0d5a 100644
--- a/drivers/infiniband/hw/qib/qib_driver.c
+++ b/drivers/infiniband/hw/qib/qib_driver.c
@@ -71,6 +71,11 @@ MODULE_DESCRIPTION("QLogic IB driver");
*/
#define QIB_PIO_MAXIBHDR 128
+/*
+ * QIB_MAX_PKT_RCV is the max # if packets processed per receive interrupt.
+ */
+#define QIB_MAX_PKT_RECV 64
+
struct qlogic_ib_stats qib_stats;
const char *qib_get_unit_name(int unit)
@@ -335,7 +340,7 @@ u32 qib_kreceive(struct qib_ctxtdata *rcd, u32 *llic, u32 *npkts)
smp_rmb(); /* prevent speculative reads of dma'ed hdrq */
}
- for (last = 0, i = 1; !last && i <= 64; i += !last) {
+ for (last = 0, i = 1; !last; i += !last) {
hdr = dd->f_get_msgheader(dd, rhf_addr);
eflags = qib_hdrget_err_flags(rhf_addr);
etype = qib_hdrget_rcv_type(rhf_addr);
@@ -384,6 +389,9 @@ move_along:
l += rsize;
if (l >= maxcnt)
l = 0;
+ if (i == QIB_MAX_PKT_RECV)
+ last = 1;
+
rhf_addr = (__le32 *) rcd->rcvhdrq + l + dd->rhf_offset;
if (dd->flags & QIB_NODMA_RTAIL) {
u32 seq = qib_hdrget_seq(rhf_addr);
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