diff options
Diffstat (limited to 'drivers/net/tg3.h')
| -rw-r--r-- | drivers/net/tg3.h | 34 |
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; |