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Direct polling of TX completion queue now works.

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This commit is contained in:
Michael Brown
2007-09-15 20:58:29 +01:00
parent 687afdcdd9
commit 8deef093d9
4 changed files with 319 additions and 75 deletions
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79
src/drivers/net/mlx_ipoib/arbel.h
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@@ -1,6 +1,26 @@
#ifndef _ARBEL_H
#define _ARBEL_H
/** @file
*
* Mellanox Arbel Infiniband HCA driver
*
*/
/*
* Hardware constants
*
*/
#define ARBEL_OPCODE_SEND 0x0a
#define ARBEL_OPCODE_RECV_ERROR 0xfe
#define ARBEL_OPCODE_SEND_ERROR 0xff
/*
* Wrapper structures for hardware datatypes
*
*/
struct MLX_DECLARE_STRUCT ( arbelprm_completion_queue_entry );
struct MLX_DECLARE_STRUCT ( arbelprm_completion_with_error );
struct MLX_DECLARE_STRUCT ( arbelprm_cq_ci_db_record );
@@ -12,6 +32,11 @@ struct MLX_DECLARE_STRUCT ( arbelprm_wqe_segment_data_ptr );
struct MLX_DECLARE_STRUCT ( arbelprm_wqe_segment_next );
struct MLX_DECLARE_STRUCT ( arbelprm_wqe_segment_ud );
/*
* Composite hardware datatypes
*
*/
#define ARBELPRM_MAX_GATHER 1
struct arbelprm_ud_send_wqe {
@@ -36,4 +61,58 @@ union arbelprm_doorbell_register {
uint32_t dword[2];
} __attribute__ (( packed ));
/*
* gPXE-specific definitions
*
*/
/** Alignment of Arbel send work queue entries */
#define ARBEL_SEND_WQE_ALIGN 128
/** An Arbel send work queue entry */
union arbel_send_wqe {
struct arbelprm_ud_send_wqe ud;
uint8_t force_align[ARBEL_SEND_WQE_ALIGN];
} __attribute__ (( packed ));
/** An Arbel send work queue */
struct arbel_send_work_queue {
/** Doorbell record number */
unsigned int doorbell_idx;
/** Work queue entries */
union arbel_send_wqe *wqe;
};
/** Alignment of Arbel receive work queue entries */
#define ARBEL_RECV_WQE_ALIGN 64
/** An Arbel receive work queue entry */
union arbel_recv_wqe {
uint8_t force_align[ARBEL_RECV_WQE_ALIGN];
} __attribute__ (( packed ));
/** An Arbel receive work queue */
struct arbel_recv_work_queue {
/** Doorbell record number */
unsigned int doorbell_idx;
/** Work queue entries */
union arbel_recv_wqe *wqe;
};
/** An Arbel completion queue */
struct arbel_completion_queue {
/** Doorbell record number */
unsigned int doorbell_idx;
/** Completion queue entries */
union arbelprm_completion_entry *cqe;
};
/** An Arbel device */
struct arbel {
/** User Access Region */
void *uar;
/** Doorbell records */
union arbelprm_doorbell_record *db_rec;
};
#endif /* _ARBEL_H */