rtems/rtems-libbsd
1
0
Fork 0
mirror of https://git.rtems.org/rtems-libbsd/ synced 2025-07-26 01:05:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

soc/qbman: Simplify bman_release()

Browse Source 
Get the affine portal only once for the complete transaction.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
This commit is contained in:
Sebastian Huber 2017-05-19 09:47:45 +02:00
parent 1908686c31
commit 66e83e0e64
1 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
linux/drivers/soc/fsl/qbman/bman.c
View File

@ -735,26 +735,23 @@ int bman_release(struct bman_pool *pool, const struct bm_buffer *bufs, u8 num)
DPAA_ASSERT(num > 0 && num <= 8);
do {
while (1) {
p = get_affine_portal();
local_irq_save(irqflags);
avail = bm_rcr_get_avail(&p->p);
if (avail < 2)
update_rcr_ci(p, avail);
r = bm_rcr_start(&p->p);
local_irq_restore(irqflags);
put_affine_portal();
if (likely(r))
break;
local_irq_restore(irqflags);
put_affine_portal();
if (unlikely(--timeout == 0))
return -ETIMEDOUT;
udelay(1);
} while (--timeout);
}
if (unlikely(!timeout))
return -ETIMEDOUT;
p = get_affine_portal();
local_irq_save(irqflags);
/*
* we can copy all but the first entry, as this can trigger badness
* with the valid-bit