bnx2x: Load/Unload under traffic
Load/Unload under traffic
Few issues were found when loading and unloading under traffic:
- When receiving Tx interrupt call netif_wake_queue if the queue is
stopped but the state is open
- Check that interrupts are enabled before doing anything else on the
msix_fp_int function
- In nic_load, enable the interrupts only when needed and ready for it
- Function stop_leading returns status since it can fail
- Add 1ms delay when unloading the driver to validate that there are no
open transactions that already started by the FW
- Splitting the "has work" function into Tx and Rx so the same function
will be used on unload and interrupts
- Do not request for WoL if only resetting the device (save the time
that it takes the FW to set the link after reset)
- Fixing the device reset after iSCSI boot and before driver load - all
internal buffers must be cleared before the driver is loaded
Signed-off-by: Vladislav 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.h b/drivers/net/bnx2x.h
index 9cbf0e8..b9aa6f4 100644
--- a/drivers/net/bnx2x.h
+++ b/drivers/net/bnx2x.h
@@ -274,6 +274,15 @@
#define bnx2x_fp(bp, nr, var) (bp->fp[nr].var)
+#define BNX2X_HAS_TX_WORK(fp) \
+ ((fp->tx_pkt_prod != le16_to_cpu(*fp->tx_cons_sb)) || \
+ (fp->tx_pkt_prod != fp->tx_pkt_cons))
+
+#define BNX2X_HAS_RX_WORK(fp) \
+ (fp->rx_comp_cons != le16_to_cpu(*fp->rx_cons_sb))
+
+#define BNX2X_HAS_WORK(fp) (BNX2X_HAS_RX_WORK(fp) || BNX2X_HAS_TX_WORK(fp))
+
/* MC hsi */
#define MAX_FETCH_BD 13 /* HW max BDs per packet */