int nr_direct_mw;
int nr_lut_mw;
+ int nr_rsvd_luts;
int direct_mw_to_bar[MAX_DIRECT_MW];
int peer_nr_direct_mw;
{
struct switchtec_ntb *sndev = ntb_sndev(ntb);
int nr_direct_mw = sndev->peer_nr_direct_mw;
- int nr_lut_mw = sndev->peer_nr_lut_mw - 1;
+ int nr_lut_mw = sndev->peer_nr_lut_mw - sndev->nr_rsvd_luts;
if (pidx != NTB_DEF_PEER_IDX)
return -EINVAL;
static int lut_index(struct switchtec_ntb *sndev, int mw_idx)
{
- return mw_idx - sndev->nr_direct_mw + 1;
+ return mw_idx - sndev->nr_direct_mw + sndev->nr_rsvd_luts;
}
static int peer_lut_index(struct switchtec_ntb *sndev, int mw_idx)
{
- return mw_idx - sndev->peer_nr_direct_mw + 1;
+ return mw_idx - sndev->peer_nr_direct_mw + sndev->nr_rsvd_luts;
}
static int switchtec_ntb_mw_get_align(struct ntb_dev *ntb, int pidx,
static int switchtec_ntb_peer_mw_count(struct ntb_dev *ntb)
{
struct switchtec_ntb *sndev = ntb_sndev(ntb);
+ int nr_lut_mw = sndev->nr_lut_mw - sndev->nr_rsvd_luts;
- return sndev->nr_direct_mw + (use_lut_mws ? sndev->nr_lut_mw - 1 : 0);
+ return sndev->nr_direct_mw + (use_lut_mws ? nr_lut_mw : 0);
}
static int switchtec_ntb_direct_get_addr(struct switchtec_ntb *sndev,
u32 ctl_val;
int rc;
+ sndev->nr_rsvd_luts++;
sndev->self_shared = dma_zalloc_coherent(&sndev->stdev->pdev->dev,
LUT_SIZE,
&sndev->self_shared_dma,
dma_free_coherent(&sndev->stdev->pdev->dev, LUT_SIZE,
sndev->self_shared,
sndev->self_shared_dma);
+ sndev->nr_rsvd_luts--;
}
static irqreturn_t switchtec_ntb_doorbell_isr(int irq, void *dev)