diff options
Diffstat (limited to 'drivers/s390/cio/qdio.h')
| -rw-r--r-- | drivers/s390/cio/qdio.h | 52 |
1 files changed, 21 insertions, 31 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 7bc643f..b962ffb 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -14,16 +14,10 @@ #include "chsc.h" #define QDIO_BUSY_BIT_PATIENCE (100 << 12) /* 100 microseconds */ +#define QDIO_BUSY_BIT_RETRY_DELAY 10 /* 10 milliseconds */ +#define QDIO_BUSY_BIT_RETRIES 1000 /* = 10s retry time */ #define QDIO_INPUT_THRESHOLD (500 << 12) /* 500 microseconds */ -/* - * if an asynchronous HiperSockets queue runs full, the 10 seconds timer wait - * till next initiative to give transmitted skbs back to the stack is too long. - * Therefore polling is started in case of multicast queue is filled more - * than 50 percent. - */ -#define QDIO_IQDIO_POLL_LVL 65 /* HS multicast queue */ - enum qdio_irq_states { QDIO_IRQ_STATE_INACTIVE, QDIO_IRQ_STATE_ESTABLISHED, @@ -42,6 +36,7 @@ enum qdio_irq_states { #define SLSB_STATE_NOT_INIT 0x0 #define SLSB_STATE_EMPTY 0x1 #define SLSB_STATE_PRIMED 0x2 +#define SLSB_STATE_PENDING 0x3 #define SLSB_STATE_HALTED 0xe #define SLSB_STATE_ERROR 0xf #define SLSB_TYPE_INPUT 0x0 @@ -65,6 +60,8 @@ enum qdio_irq_states { (SLSB_OWNER_PROG | SLSB_TYPE_OUTPUT | SLSB_STATE_NOT_INIT) /* 0xa0 */ #define SLSB_P_OUTPUT_EMPTY \ (SLSB_OWNER_PROG | SLSB_TYPE_OUTPUT | SLSB_STATE_EMPTY) /* 0xa1 */ +#define SLSB_P_OUTPUT_PENDING \ + (SLSB_OWNER_PROG | SLSB_TYPE_OUTPUT | SLSB_STATE_PENDING) /* 0xa3 */ #define SLSB_CU_OUTPUT_PRIMED \ (SLSB_OWNER_CU | SLSB_TYPE_OUTPUT | SLSB_STATE_PRIMED) /* 0x62 */ #define SLSB_P_OUTPUT_HALTED \ @@ -82,19 +79,11 @@ enum qdio_irq_states { #define CHSC_FLAG_QDIO_CAPABILITY 0x80 #define CHSC_FLAG_VALIDITY 0x40 -/* qdio adapter-characteristics-1 flag */ -#define AC1_SIGA_INPUT_NEEDED 0x40 /* process input queues */ -#define AC1_SIGA_OUTPUT_NEEDED 0x20 /* process output queues */ -#define AC1_SIGA_SYNC_NEEDED 0x10 /* ask hypervisor to sync */ -#define AC1_AUTOMATIC_SYNC_ON_THININT 0x08 /* set by hypervisor */ -#define AC1_AUTOMATIC_SYNC_ON_OUT_PCI 0x04 /* set by hypervisor */ -#define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */ -#define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */ - /* SIGA flags */ #define QDIO_SIGA_WRITE 0x00 #define QDIO_SIGA_READ 0x01 #define QDIO_SIGA_SYNC 0x02 +#define QDIO_SIGA_WRITEQ 0x04 #define QDIO_SIGA_QEBSM_FLAG 0x80 #ifdef CONFIG_64BIT @@ -251,6 +240,12 @@ struct qdio_input_q { struct qdio_output_q { /* PCIs are enabled for the queue */ int pci_out_enabled; + /* cq: use asynchronous output buffers */ + int use_cq; + /* cq: aobs used for particual SBAL */ + struct qaob **aobs; + /* cq: sbal state related to asynchronous operation */ + struct qdio_outbuf_state *sbal_state; /* timer to check for more outbound work */ struct timer_list timer; /* used SBALs before tasklet schedule */ @@ -287,6 +282,9 @@ struct qdio_q { /* error condition during a data transfer */ unsigned int qdio_error; + /* last scan of the queue */ + u64 timestamp; + struct tasklet_struct tasklet; struct qdio_queue_perf_stat q_stats; @@ -420,20 +418,7 @@ static inline int multicast_outbound(struct qdio_q *q) #define queue_irqs_disabled(q) \ (test_bit(QDIO_QUEUE_IRQS_DISABLED, &q->u.in.queue_irq_state) != 0) -#define TIQDIO_SHARED_IND 63 - -/* device state change indicators */ -struct indicator_t { - u32 ind; /* u32 because of compare-and-swap performance */ - atomic_t count; /* use count, 0 or 1 for non-shared indicators */ -}; - -extern struct indicator_t *q_indicators; - -static inline int shared_ind(u32 *dsci) -{ - return dsci == &q_indicators[TIQDIO_SHARED_IND].ind; -} +extern u64 last_ai_time; /* prototypes for thin interrupt */ void qdio_setup_thinint(struct qdio_irq *irq_ptr); @@ -446,6 +431,8 @@ int tiqdio_allocate_memory(void); void tiqdio_free_memory(void); int tiqdio_register_thinints(void); void tiqdio_unregister_thinints(void); +void clear_nonshared_ind(struct qdio_irq *); +int test_nonshared_ind(struct qdio_irq *); /* prototypes for setup */ void qdio_inbound_processing(unsigned long data); @@ -467,6 +454,9 @@ int qdio_setup_create_sysfs(struct ccw_device *cdev); void qdio_setup_destroy_sysfs(struct ccw_device *cdev); int qdio_setup_init(void); void qdio_setup_exit(void); +int qdio_enable_async_operation(struct qdio_output_q *q); +void qdio_disable_async_operation(struct qdio_output_q *q); +struct qaob *qdio_allocate_aob(void); int debug_get_buf_state(struct qdio_q *q, unsigned int bufnr, unsigned char *state); |