bnx2x: Adding some mmiowb
Signed-off-by: Vlad Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index d946c9e..f20df6d 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -652,6 +652,11 @@
val, port, addr, (msix ? "MSI-X" : (msi ? "MSI" : "INTx")));
REG_WR(bp, addr, val);
+ /*
+ * Ensure that HC_CONFIG is written before leading/trailing edge config
+ */
+ mmiowb();
+ barrier();
if (CHIP_IS_E1H(bp)) {
/* init leading/trailing edge */
@@ -666,6 +671,9 @@
REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, val);
REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, val);
}
+
+ /* Make sure that interrupts are indeed enabled from here on */
+ mmiowb();
}
static void bnx2x_int_disable(struct bnx2x *bp)
@@ -739,6 +747,10 @@
DP(BNX2X_MSG_OFF, "write 0x%08x to HC addr 0x%x\n",
(*(u32 *)&igu_ack), hc_addr);
REG_WR(bp, hc_addr, (*(u32 *)&igu_ack));
+
+ /* Make sure that ACK is written */
+ mmiowb();
+ barrier();
}
static inline u16 bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp)
@@ -2429,9 +2441,14 @@
bp->spq_prod_idx++;
}
+ /* Make sure that BD data is updated before writing the producer */
+ wmb();
+
REG_WR(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_PROD_OFFSET(func),
bp->spq_prod_idx);
+ mmiowb();
+
spin_unlock_bh(&bp->spq_lock);
return 0;
}