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authorDivy Le Ray <divy@chelsio.com>2007-08-21 20:49:10 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:50:47 -0700
commit6e3f03b72c1e11e19ea233a411a782f7231ba13f (patch)
tree4a6977c9ece02bc41002709767a3aaec13fed052 /drivers/net/cxgb3
parent52b810d3055f0a49472d05500c6fea5aeabd01a6 (diff)
downloadlinux-6e3f03b72c1e11e19ea233a411a782f7231ba13f.tar.bz2
cxgb3 - SGE doorbell overflow warning
Log doorbell Fifo overflow Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/cxgb3')
-rw-r--r--drivers/net/cxgb3/regs.h8
-rw-r--r--drivers/net/cxgb3/sge.c4
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index aa80313c922e..282427877ea9 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -172,6 +172,14 @@
#define A_SG_INT_CAUSE 0x5c
+#define S_HIPIODRBDROPERR 11
+#define V_HIPIODRBDROPERR(x) ((x) << S_HIPIODRBDROPERR)
+#define F_HIPIODRBDROPERR V_HIPIODRBDROPERR(1U)
+
+#define S_LOPIODRBDROPERR 10
+#define V_LOPIODRBDROPERR(x) ((x) << S_LOPIODRBDROPERR)
+#define F_LOPIODRBDROPERR V_LOPIODRBDROPERR(1U)
+
#define S_RSPQDISABLED 3
#define V_RSPQDISABLED(x) ((x) << S_RSPQDISABLED)
#define F_RSPQDISABLED V_RSPQDISABLED(1U)
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 069c1aca8a6b..9233bbba9e91 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -2458,6 +2458,10 @@ void t3_sge_err_intr_handler(struct adapter *adapter)
"(0x%x)\n", (v >> S_RSPQ0DISABLED) & 0xff);
}
+ if (status & (F_HIPIODRBDROPERR | F_LOPIODRBDROPERR))
+ CH_ALERT(adapter, "SGE dropped %s priority doorbell\n",
+ status & F_HIPIODRBDROPERR ? "high" : "lo");
+
t3_write_reg(adapter, A_SG_INT_CAUSE, status);
if (status & (F_RSPQCREDITOVERFOW | F_RSPQDISABLED))
t3_fatal_err(adapter);