Buffers replenished post processing entries in the
REO2TCL ring do not have ipa smmu mappings created
when RX_PREALLOC_BUFFER_POOL feature is disabled.
This will result in SMMU fault when IPA HW accesses
such replenished buffers.
Fix is to create IPA SMMU mapping for replenished buffers
when RX_PREALLOC_BUFFER_POOL feature is disabled as well.
Change-Id: I0fe611a1279b91a3e45bc269348e05de9015d596
CRs-Fixed: 2915686
Refill pool buffer IPA mapping is done during allocation time,
but in some cases where IPA pipes enable/disable happens in between
previous mapping is not valid which is causing SMMU fault from IPA module.
Fix this by moving IPA mapping before replenishing buffers to RXDMA ring.
Change-Id: Ie6c5eb791b6f832f311a6e89489aebef37094d8f
CRS-Fixed: 2901819
Rx refill lock is not in sync during deinit path causing
mem leak of refill buffers. Set the Rx refill lock during deinit path.
Change-Id: Ic7d07c0fcaae26f6a269afcba4d593be1d5eacad
CRs-Fixed: 2898006
Avoid per packet Rx refill buff pool lock, instead
acquire/release lock for burst of nbuf's replenishment.
Change-Id: I778cb9702d31d4b8911cca4e7f06f12c50ef6df9
CRs-Fixed: 2884208
Add and initialize a preallocated pool of buffers which can
be used to replenish RX buffers. During replenish, the buffers
from the pool are used instead of allocating/mapping a new buffer
in the softirq context. This preallocated pool will be refilled
in thread context.
Change-Id: Idf3bd7d25c5d57ddba105ccd8fab672c26a184f1
CRs-Fixed: 2869345
Add support for RX buffer pool, this is a pre-allocated pool
of buffers which will be utilized during low memory conditions.
RX buffer replenish will fail when the system is low in memory;
this is okay if the condition is momentary, but if the
system persists in such state for longer duration, then HW will
run out of free buffers and this results in a crash.
RX buffer pool will be helpful in such scenarios. Buffers from
the pool will be given to the HW when the system is running low
in memory.
Change-Id: I7ca1159d858227a0a2021235d24d763e56ac0b27
CRs-Fixed: 2731517
