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event/dlb2: fix port COS range allocation

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Fix the allocation of port COS when the application requested port
COS exceeds (e.g. beyond 0-15) the number of LDB ports for
the domain.

Driver limits application specified ports from a COS to the
max ports allocated for the COS so that the rest of the
ports can be allocated from default(best) COS.

Fixes: bec8901bfe ("event/dlb2: support ldb port specific COS")
Cc: stable@dpdk.org

Signed-off-by: Abdullah Sevincer <abdullah.sevincer@intel.com>
This commit is contained in:
Abdullah Sevincer 2022-10-20 12:50:40 -05:00 committed by Jerin Jacob
parent 8f4ff7de39
commit 728717ebb8
2 changed files with 8 additions and 3 deletions
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9
drivers/event/dlb2/dlb2.c
View File

@ -182,8 +182,10 @@ dlb2_init_port_cos(struct dlb2_eventdev *dlb2, int *port_cos)
for (q = 0; q < DLB2_MAX_NUM_PORTS_ALL; q++) {
dlb2->ev_ports[q].cos_id = port_cos[q];
if (port_cos[q] != DLB2_COS_DEFAULT) {
if (port_cos[q] != DLB2_COS_DEFAULT &&
dlb2->cos_ports[port_cos[q]] < DLB2_MAX_NUM_LDB_PORTS_PER_COS) {
dlb2->cos_ports[port_cos[q]]++;
dlb2->max_cos_port = q;
}
}
}
@ -841,8 +843,9 @@ dlb2_hw_create_sched_domain(struct dlb2_eventdev *dlb2,
cos_ports = dlb2->cos_ports[0] + dlb2->cos_ports[1] +
dlb2->cos_ports[2] + dlb2->cos_ports[3];
if (cos_ports > resources_asked->num_ldb_ports) {
DLB2_LOG_ERR("dlb2: num_ldb_ports < nonzero cos_ports\n");
if (cos_ports > resources_asked->num_ldb_ports ||
(cos_ports && dlb2->max_cos_port >= resources_asked->num_ldb_ports)) {
DLB2_LOG_ERR("dlb2: num_ldb_ports < cos_ports\n");
ret = EINVAL;
goto error_exit;
}

2
drivers/event/dlb2/dlb2_priv.h
View File

@ -92,6 +92,7 @@
#define DLB2_NUM_SN_GROUPS 2
#define DLB2_MAX_LDB_SN_ALLOC 1024
#define DLB2_MAX_QUEUE_DEPTH_THRESHOLD 8191
#define DLB2_MAX_NUM_LDB_PORTS_PER_COS (DLB2_MAX_NUM_LDB_PORTS/DLB2_COS_NUM_VALS)
/* 2048 total hist list entries and 64 total ldb ports, which
* makes for 2048/64 == 32 hist list entries per port. However, CQ
@ -635,6 +636,7 @@ struct dlb2_eventdev {
};
uint32_t cos_ports[DLB2_COS_NUM_VALS]; /* total ldb ports in each class */
uint32_t cos_bw[DLB2_COS_NUM_VALS]; /* bandwidth per cos domain */
uint8_t max_cos_port; /* Max LDB port from any cos */
};
/* used for collecting and passing around the dev args */