From: Vladimir Ratnikov <vratnikov@netgate.com>
Date: Thu, 23 Jul 2020 09:11:09 +0000 (-0400)
Subject: dpdk: device_id sorted order for cryptodev
X-Git-Tag: v21.01-rc0~171
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=5a849e3b359dcf8f730429e1ccb7421f1c4217b6;p=vpp.git

dpdk: device_id sorted order for cryptodev

By default, VPP automatically assignes for each tunnel
next available QAT device by order dev_id-que-pair.
In most cases we have more than one device and it can
greatly increase ipsec perfomance without any actions
with configuration from user  if we use all the
devices first and first que-pairs

Type: feature

Signed-off-by: Vladimir Ratnikov <vratnikov@netgate.com>
Change-Id: Iac9fe74768775459e22f69bb3706b542090a9375
---

diff --git a/src/plugins/dpdk/cryptodev/cryptodev.c b/src/plugins/dpdk/cryptodev/cryptodev.c
index 86cec8a5cbc..2ae09ce226e 100644
--- a/src/plugins/dpdk/cryptodev/cryptodev.c
+++ b/src/plugins/dpdk/cryptodev/cryptodev.c
@@ -1181,9 +1181,23 @@ cryptodev_create_device (vlib_main_t *vm, u32 n_queues)
   return 0;
 }
 
+static int
+cryptodev_cmp (void *v1, void *v2)
+{
+  cryptodev_inst_t *a1 = v1;
+  cryptodev_inst_t *a2 = v2;
+
+  if (a1->q_id > a2->q_id)
+    return 1;
+  if (a1->q_id < a2->q_id)
+    return -1;
+  return 0;
+}
+
 static int
 cryptodev_probe (vlib_main_t *vm, u32 n_workers)
 {
+  cryptodev_main_t *cmt = &cryptodev_main;
   u32 n_queues = cryptodev_count_queue (vm->numa_node);
   u32 i;
   int ret;
@@ -1204,6 +1218,8 @@ cryptodev_probe (vlib_main_t *vm, u32 n_workers)
 	return ret;
     }
 
+  vec_sort_with_function(cmt->cryptodev_inst, cryptodev_cmp);
+
   return 0;
 }