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authorStefano Panella <stefano.panella@csr.com>2008-12-12 13:00:06 +0000
committerDavid Vrabel <david.vrabel@csr.com>2008-12-12 13:00:06 +0000
commit5b37717a23b8e40f6cf7ad85a26ddcf41c171e2c (patch)
tree3c611f907bc61c6e1900c4092e8f2f1e8eefd907 /drivers/uwb/drp-avail.c
parentc35fa3ea1ae8198bd65c2c6e59d9ebd68c115a59 (diff)
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.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/uwb/drp-avail.c b/drivers/uwb/drp-avail.c
index 3febd8552808..40a540a5a72e 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);

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