54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
/* { dg-do compile } */
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/* { dg-options "-O2 -mcpu=ev4" } */
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struct scsi_cmnd {
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int sc_data_direction;
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};
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struct lpfc_hba {
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unsigned cfg_total_seg_cnt;
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};
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struct lpfc_scsi_buf {
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struct scsi_cmnd *pCmd;
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unsigned seg_cnt;
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unsigned *fcp_bpl;
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};
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extern void *sg_next(void *sg);
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extern void *scsi_sglist(struct scsi_cmnd *cmd);
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extern unsigned scsi_sg_count(struct scsi_cmnd *cmd);
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static inline void dma_map_sg_attrs(void *sg, int nents, int dir)
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{
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int i;
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for (i = 0; i < nents; i++, sg = sg_next(sg))
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;
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if (!dir)
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asm volatile( "call_pal %0" : : "i"(129));
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}
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static inline void lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
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unsigned *pde5)
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{
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void *sgde;
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int i;
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*pde5 = (((0x85 & 0x000000ffu) << 24) | (*pde5 & ~(0x000000ffu << 24)));
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for (i = 0, sgde = scsi_sglist(sc); i < 2; i++, sgde = sg_next(sgde))
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;
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}
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void lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba,
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struct lpfc_scsi_buf *lpfc_cmd)
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{
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struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
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unsigned *bpl = lpfc_cmd->fcp_bpl;
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dma_map_sg_attrs(scsi_sglist(scsi_cmnd),
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scsi_sg_count(scsi_cmnd),
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scsi_cmnd->sc_data_direction);
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if (lpfc_cmd->seg_cnt > phba->cfg_total_seg_cnt)
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lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl);
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}
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