d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

event/octeontx: support dequeue timeout tick conversion

Browse Source 
SSO co-processor runs at a different frequency than core clock.
Request PF to convert the ns to SSO get_work timeout period.
On dequeue, If device is configured with
RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT configuration then
use different fast path dequeue handler to wait till requested
amount of nanosecond if the event is not available.

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Acked-by: Gage Eads <gage.eads@intel.com>
This commit is contained in:
Jerin Jacob 2017-03-03 22:57:57 +05:30
parent 35a228ac50
commit 613c702771
2 changed files with 39 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/event/octeontx/ssovf_evdev.c
View File

@ -119,6 +119,35 @@ ssovf_mbox_priority_set(uint8_t queue, uint8_t prio)
return ret;
}
struct ssovf_mbox_convert_ns_getworks_iter {
uint64_t wait_ns;
uint32_t getwork_iter;/* Get_work iterations for the given wait_ns */
};
static int
ssovf_mbox_timeout_ticks(uint64_t ns, uint64_t *tmo_ticks)
{
struct octeontx_mbox_hdr hdr = {0};
struct ssovf_mbox_convert_ns_getworks_iter ns2iter;
uint16_t len = sizeof(ns2iter);
int ret;
hdr.coproc = SSO_COPROC;
hdr.msg = SSO_CONVERT_NS_GETWORK_ITER;
hdr.vfid = 0;
memset(&ns2iter, 0, len);
ns2iter.wait_ns = ns;
ret = octeontx_ssovf_mbox_send(&hdr, &ns2iter, len, &ns2iter, len);
if (ret < 0 || (ret != len)) {
ssovf_log_err("Failed to get tmo ticks ns=%"PRId64"", ns);
return -EIO;
}
*tmo_ticks = ns2iter.getwork_iter;
return 0;
}
static void
ssovf_info_get(struct rte_eventdev *dev, struct rte_event_dev_info *dev_info)
{
@ -300,6 +329,14 @@ ssovf_port_unlink(struct rte_eventdev *dev, void *port, uint8_t queues[],
return (int)nb_unlinks;
}
static int
ssovf_timeout_ticks(struct rte_eventdev *dev, uint64_t ns, uint64_t *tmo_ticks)
{
RTE_SET_USED(dev);
return ssovf_mbox_timeout_ticks(ns, tmo_ticks);
}
/* Initialize and register event driver with DPDK Application */
static const struct rte_eventdev_ops ssovf_ops = {
.dev_infos_get = ssovf_info_get,
@ -312,6 +349,7 @@ static const struct rte_eventdev_ops ssovf_ops = {
.port_release = ssovf_port_release,
.port_link = ssovf_port_link,
.port_unlink = ssovf_port_unlink,
.timeout_ticks = ssovf_timeout_ticks,
};
static int

1
drivers/event/octeontx/ssovf_evdev.h
View File

@ -117,6 +117,7 @@
#define SSO_GET_DEV_INFO 0x3
#define SSO_GET_GETWORK_WAIT 0x4
#define SSO_SET_GETWORK_WAIT 0x5
#define SSO_CONVERT_NS_GETWORK_ITER 0x6
#define SSO_GRP_GET_PRIORITY 0x7
#define SSO_GRP_SET_PRIORITY 0x8