qib_keys.c File Reference

#include "qib.h"

Go to the source code of this file.

Functions
int	qib_alloc_lkey (struct qib_mregion *mr, int dma_region)
void	qib_free_lkey (struct qib_mregion *mr)
int	qib_lkey_ok (struct qib_lkey_table *rkt, struct qib_pd *pd, struct qib_sge *isge, struct ib_sge *sge, int acc)
int	qib_rkey_ok (struct qib_qp *qp, struct qib_sge *sge, u32 len, u64 vaddr, u32 rkey, int acc)
int	qib_fast_reg_mr (struct qib_qp *qp, struct ib_send_wr *wr)

Function Documentation

int qib_alloc_lkey	(	struct qib_mregion *	mr,
		int	dma_region
	)

qib_alloc_lkey - allocate an lkey : memory region that this lkey protects : 0->normal key, 1->restricted DMA key

Returns 0 if successful, otherwise returns -errno.

Increments mr reference count as required.

Sets the lkey field mr for non-dma regions.

Definition at line 49 of file qib_keys.c.

int qib_fast_reg_mr	(	struct qib_qp *	qp,
		struct ib_send_wr *	wr
	)

Definition at line 337 of file qib_keys.c.

void qib_free_lkey

(

struct qib_mregion *

mr

)

qib_free_lkey - free an lkey : mr to free from tables

Definition at line 113 of file qib_keys.c.

int qib_lkey_ok	(	struct qib_lkey_table *	rkt,
		struct qib_pd *	pd,
		struct qib_sge *	isge,
		struct ib_sge *	sge,
		int	acc
	)

qib_lkey_ok - check IB SGE for validity and initialize : table containing lkey to check SGE against : protection domain : outgoing internal SGE : SGE to check : access flags

Return 1 if valid and successful, otherwise returns 0.

increments the reference count upon success

Check the IB SGE for validity and initialize our internal version of it.

Definition at line 151 of file qib_keys.c.

int qib_rkey_ok	(	struct qib_qp *	qp,
		struct qib_sge *	sge,
		u32	len,
		u64	vaddr,
		u32	rkey,
		int	acc
	)

qib_rkey_ok - check the IB virtual address, length, and RKEY : qp for validation : SGE state : length of data : virtual address to place data : rkey to check : access flags

Return 1 if successful, otherwise 0.

increments the reference count upon success

Definition at line 248 of file qib_keys.c.