Author: cem
Date: Wed Nov 11 18:55:07 2015
New Revision: 290680
URL: https://svnweb.freebsd.org/changeset/base/290680
Log:
ntb_hw: In INTx fallback, correct db shift from 15 to 16
Sponsored by: EMC / Isilon Storage Division
Modified:
head/sys/dev/ntb/ntb_hw/ntb_hw.c
head/sys/dev/ntb/ntb_hw/ntb_regs.h
Modified: head/sys/dev/ntb/ntb_hw/ntb_hw.c
==============================================================================
--- head/sys/dev/ntb/ntb_hw/ntb_hw.c Wed Nov 11 18:54:58 2015
(r290679)
+++ head/sys/dev/ntb/ntb_hw/ntb_hw.c Wed Nov 11 18:55:07 2015
(r290680)
@@ -905,7 +905,7 @@ ntb_init_isr(struct ntb_softc *ntb)
if (ntb->type == NTB_XEON && num_vectors < ntb->db_vec_count) {
ntb->db_vec_count = 1;
- ntb->db_vec_shift = ntb->db_count;
+ ntb->db_vec_shift = XEON_DB_TOTAL_SHIFT;
rc = ntb_setup_legacy_interrupt(ntb);
} else {
ntb_create_msix_vec(ntb, num_vectors);
Modified: head/sys/dev/ntb/ntb_hw/ntb_regs.h
==============================================================================
--- head/sys/dev/ntb/ntb_hw/ntb_regs.h Wed Nov 11 18:54:58 2015
(r290679)
+++ head/sys/dev/ntb/ntb_hw/ntb_regs.h Wed Nov 11 18:55:07 2015
(r290680)
@@ -39,6 +39,7 @@
#define XEON_HSX_SPLIT_MW_COUNT 3
/* Reserve the uppermost bit for link interrupt */
#define XEON_DB_COUNT 15
+#define XEON_DB_TOTAL_SHIFT 16
#define XEON_DB_LINK 15
#define XEON_DB_MSIX_VECTOR_COUNT 4
#define XEON_DB_MSIX_VECTOR_SHIFT 5
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