aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/tg3.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/tg3.h')
-rw-r--r--drivers/net/tg3.h34
1 files changed, 29 insertions, 5 deletions
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 993f84c93dc..70ad450733e 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -879,31 +879,41 @@
#define LOW_RXCOL_TICKS_CLRTCKS 0x00000014
#define DEFAULT_RXCOL_TICKS 0x00000048
#define HIGH_RXCOL_TICKS 0x00000096
+#define MAX_RXCOL_TICKS 0x000003ff
#define HOSTCC_TXCOL_TICKS 0x00003c0c
#define LOW_TXCOL_TICKS 0x00000096
#define LOW_TXCOL_TICKS_CLRTCKS 0x00000048
#define DEFAULT_TXCOL_TICKS 0x0000012c
#define HIGH_TXCOL_TICKS 0x00000145
+#define MAX_TXCOL_TICKS 0x000003ff
#define HOSTCC_RXMAX_FRAMES 0x00003c10
#define LOW_RXMAX_FRAMES 0x00000005
#define DEFAULT_RXMAX_FRAMES 0x00000008
#define HIGH_RXMAX_FRAMES 0x00000012
+#define MAX_RXMAX_FRAMES 0x000000ff
#define HOSTCC_TXMAX_FRAMES 0x00003c14
#define LOW_TXMAX_FRAMES 0x00000035
#define DEFAULT_TXMAX_FRAMES 0x0000004b
#define HIGH_TXMAX_FRAMES 0x00000052
+#define MAX_TXMAX_FRAMES 0x000000ff
#define HOSTCC_RXCOAL_TICK_INT 0x00003c18
#define DEFAULT_RXCOAL_TICK_INT 0x00000019
#define DEFAULT_RXCOAL_TICK_INT_CLRTCKS 0x00000014
+#define MAX_RXCOAL_TICK_INT 0x000003ff
#define HOSTCC_TXCOAL_TICK_INT 0x00003c1c
#define DEFAULT_TXCOAL_TICK_INT 0x00000019
#define DEFAULT_TXCOAL_TICK_INT_CLRTCKS 0x00000014
+#define MAX_TXCOAL_TICK_INT 0x000003ff
#define HOSTCC_RXCOAL_MAXF_INT 0x00003c20
#define DEFAULT_RXCOAL_MAXF_INT 0x00000005
+#define MAX_RXCOAL_MAXF_INT 0x000000ff
#define HOSTCC_TXCOAL_MAXF_INT 0x00003c24
#define DEFAULT_TXCOAL_MAXF_INT 0x00000005
+#define MAX_TXCOAL_MAXF_INT 0x000000ff
#define HOSTCC_STAT_COAL_TICKS 0x00003c28
#define DEFAULT_STAT_COAL_TICKS 0x000f4240
+#define MAX_STAT_COAL_TICKS 0xd693d400
+#define MIN_STAT_COAL_TICKS 0x00000064
/* 0x3c2c --> 0x3c30 unused */
#define HOSTCC_STATS_BLK_HOST_ADDR 0x00003c30 /* 64-bit */
#define HOSTCC_STATUS_BLK_HOST_ADDR 0x00003c38 /* 64-bit */
@@ -2006,17 +2016,31 @@ struct tg3_ethtool_stats {
struct tg3 {
/* begin "general, frequently-used members" cacheline section */
+ /* If the IRQ handler (which runs lockless) needs to be
+ * quiesced, the following bitmask state is used. The
+ * SYNC flag is set by non-IRQ context code to initiate
+ * the quiescence.
+ *
+ * When the IRQ handler notices that SYNC is set, it
+ * disables interrupts and returns.
+ *
+ * When all outstanding IRQ handlers have returned after
+ * the SYNC flag has been set, the setter can be assured
+ * that interrupts will no longer get run.
+ *
+ * In this way all SMP driver locks are never acquired
+ * in hw IRQ context, only sw IRQ context or lower.
+ */
+ unsigned int irq_sync;
+
/* SMP locking strategy:
*
* lock: Held during all operations except TX packet
* processing.
*
- * tx_lock: Held during tg3_start_xmit{,_4gbug} and tg3_tx
+ * tx_lock: Held during tg3_start_xmit and tg3_tx
*
- * If you want to shut up all asynchronous processing you must
- * acquire both locks, 'lock' taken before 'tx_lock'. IRQs must
- * be disabled to take 'lock' but only softirq disabling is
- * necessary for acquisition of 'tx_lock'.
+ * Both of these locks are to be held with BH safety.
*/
spinlock_t lock;
spinlock_t indirect_lock;