Use c11 atomics with RELAXED ordering instead of rte_atomic ops which
enforce unnessary barriers on arm64.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
Add devargs to control each event timer adapter i.e. TIM rings internal
parameters uniquely. The following dict format is expected
[ring-chnk_slots-disable_npa-stats_ena]. 0 represents default values.
Example:
--dev "0002:0e:00.0,tim_ring_ctl=[2-1023-1-0]"
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Add devargs to limit the max number of TIM rings reserved on probe.
Since, TIM rings are HW resources we can avoid starving other
applications by not grabbing all the rings.
Example:
--dev "0002:0e:00.0,tim_rings_lmt=2"
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Add event timer adapter statistics get and reset functions.
Stats are disabled by default and can be enabled through devargs.
Example:
--dev "0002:0e:00.0,tim_stats_ena=1"
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Add event timer arm timeout burst function.
All the timers requested to be armed have the same timeout.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Add devargs support to modify number of chunk slots. Chunks are used to
store event timers, a chunk can be visualised as an array where the last
element points to the next chunk and rest of them are used to store
events. TIM traverses the list of chunks and enqueues the event timers
to SSO.
If no argument is passed then a default value of 255 is taken.
Example:
--dev "0002:0e:00.0,tim_chnk_slots=511"
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
If the chunks are allocated from NPA then TIM can automatically free
them when traversing the list of chunks.
Add devargs to disable NPA and use software mempool to manage chunks.
Example:
--dev "0002:0e:00.0,tim_disable_npa=1"
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Allow TIM to optimize user supplied configuration based on
RTE_EVENT_TIMER_ADAPTER_F_ADJUST_RES flag.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
When the application calls timer adapter create the following is used:
- Allocate a TIM lf based on number of lf's provisioned.
- Verify the config parameters supplied.
- Allocate memory required for
* Buckets based on min and max timeout supplied.
* Allocate the chunk pool based on the number of timers.
On Free:
- Free the allocated bucket and chunk memory.
- Free the TIM lf allocated.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
