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| author | Stefano Panella <stefano.panella@csr.com> | 2008-12-12 13:00:06 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2008-12-12 13:00:06 +0000 |
| commit | 5b37717a23b8e40f6cf7ad85a26ddcf41c171e2c (patch) | |
| tree | 3c611f907bc61c6e1900c4092e8f2f1e8eefd907 /drivers/uwb/drp-avail.c | |
| parent | c35fa3ea1ae8198bd65c2c6e59d9ebd68c115a59 (diff) | |
| download | linux-3.10-5b37717a23b8e40f6cf7ad85a26ddcf41c171e2c.tar.gz linux-3.10-5b37717a23b8e40f6cf7ad85a26ddcf41c171e2c.tar.bz2 linux-3.10-5b37717a23b8e40f6cf7ad85a26ddcf41c171e2c.zip | |
uwb: improved MAS allocator and reservation conflict handling
Greatly enhance the MAS allocator:
- Handle row and column reservations.
- Permit all the available MAS to be allocated.
- Follows the WiMedia rules on MAS selection.
Take appropriate action when reservation conflicts are detected.
- Correctly identify which reservation wins the conflict.
- Protect alien BP reservations.
- If an owned reservation loses, resize/move it.
- Follow the backoff procedure before requesting additional MAS.
When reservations are terminated, move the remaining reservations (if
necessary) so they keep following the MAS allocation rules.
Signed-off-by: Stefano Panella <stefano.panella@csr.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Diffstat (limited to 'drivers/uwb/drp-avail.c')
| -rw-r--r-- | drivers/uwb/drp-avail.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/uwb/drp-avail.c b/drivers/uwb/drp-avail.c index 3febd855280..40a540a5a72 100644 --- a/drivers/uwb/drp-avail.c +++ b/drivers/uwb/drp-avail.c @@ -58,7 +58,7 @@ void uwb_drp_avail_init(struct uwb_rc *rc) * * avail = global & local & pending */ -static void uwb_drp_available(struct uwb_rc *rc, struct uwb_mas_bm *avail) +void uwb_drp_available(struct uwb_rc *rc, struct uwb_mas_bm *avail) { bitmap_and(avail->bm, rc->drp_avail.global, rc->drp_avail.local, UWB_NUM_MAS); bitmap_and(avail->bm, avail->bm, rc->drp_avail.pending, UWB_NUM_MAS); @@ -105,6 +105,7 @@ void uwb_drp_avail_release(struct uwb_rc *rc, struct uwb_mas_bm *mas) bitmap_or(rc->drp_avail.local, rc->drp_avail.local, mas->bm, UWB_NUM_MAS); bitmap_or(rc->drp_avail.pending, rc->drp_avail.pending, mas->bm, UWB_NUM_MAS); rc->drp_avail.ie_valid = false; + uwb_rsv_handle_drp_avail_change(rc); } /** @@ -280,6 +281,7 @@ int uwbd_evt_handle_rc_drp_avail(struct uwb_event *evt) mutex_lock(&rc->rsvs_mutex); bitmap_copy(rc->drp_avail.global, bmp, UWB_NUM_MAS); rc->drp_avail.ie_valid = false; + uwb_rsv_handle_drp_avail_change(rc); mutex_unlock(&rc->rsvs_mutex); uwb_rsv_sched_update(rc); |