netdev - [PATCH net-next v6 1/4] linux/dim: move useful macros to .h file

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Message-Id: <1712844751-53514-2-git-send-email-hengqi@linux.alibaba.com>
Date: Thu, 11 Apr 2024 22:12:28 +0800
From: Heng Qi <hengqi@...ux.alibaba.com>
To: netdev@...r.kernel.org,
	virtualization@...ts.linux.dev
Cc: Jakub Kicinski <kuba@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Ratheesh Kannoth <rkannoth@...vell.com>,
	Alexander Lobakin <aleksander.lobakin@...el.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
Subject: [PATCH net-next v6 1/4] linux/dim: move useful macros to .h file

These will be used in subsequent patches, including
newly declared profile arrays.

Signed-off-by: Heng Qi <hengqi@...ux.alibaba.com>
---
 include/linux/dim.h | 13 +++++++++++++
 lib/dim/net_dim.c   | 10 ++--------
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/include/linux/dim.h b/include/linux/dim.h
index f343bc9..8149d2d 100644
--- a/include/linux/dim.h
+++ b/include/linux/dim.h
@@ -10,6 +10,13 @@
 #include <linux/types.h>
 #include <linux/workqueue.h>
 
+/* Number of DIM profiles and period mode. */
+#define NET_DIM_PARAMS_NUM_PROFILES 5
+#define NET_DIM_DEFAULT_RX_CQ_PKTS_FROM_EQE 256
+#define NET_DIM_DEFAULT_TX_CQ_PKTS_FROM_EQE 128
+#define NET_DIM_DEF_PROFILE_CQE 1
+#define NET_DIM_DEF_PROFILE_EQE 1
+
 /*
  * Number of events between DIM iterations.
  * Causes a moderation of the algorithm run.
@@ -127,6 +134,12 @@ enum dim_cq_period_mode {
 	DIM_CQ_PERIOD_NUM_MODES
 };
 
+extern const struct dim_cq_moder
+rx_profile[DIM_CQ_PERIOD_NUM_MODES][NET_DIM_PARAMS_NUM_PROFILES];
+
+extern const struct dim_cq_moder
+tx_profile[DIM_CQ_PERIOD_NUM_MODES][NET_DIM_PARAMS_NUM_PROFILES];
+
 /**
  * enum dim_state - DIM algorithm states
  *
diff --git a/lib/dim/net_dim.c b/lib/dim/net_dim.c
index 4e32f7a..a649d90 100644
--- a/lib/dim/net_dim.c
+++ b/lib/dim/net_dim.c
@@ -11,12 +11,6 @@
  *        There are different set of profiles for RX/TX CQs.
  *        Each profile size must be of NET_DIM_PARAMS_NUM_PROFILES
  */
-#define NET_DIM_PARAMS_NUM_PROFILES 5
-#define NET_DIM_DEFAULT_RX_CQ_PKTS_FROM_EQE 256
-#define NET_DIM_DEFAULT_TX_CQ_PKTS_FROM_EQE 128
-#define NET_DIM_DEF_PROFILE_CQE 1
-#define NET_DIM_DEF_PROFILE_EQE 1
-
 #define NET_DIM_RX_EQE_PROFILES { \
 	{.usec = 1,   .pkts = NET_DIM_DEFAULT_RX_CQ_PKTS_FROM_EQE,}, \
 	{.usec = 8,   .pkts = NET_DIM_DEFAULT_RX_CQ_PKTS_FROM_EQE,}, \
@@ -49,13 +43,13 @@
 	{.usec = 64, .pkts = 32,}   \
 }
 
-static const struct dim_cq_moder
+const struct dim_cq_moder
 rx_profile[DIM_CQ_PERIOD_NUM_MODES][NET_DIM_PARAMS_NUM_PROFILES] = {
 	NET_DIM_RX_EQE_PROFILES,
 	NET_DIM_RX_CQE_PROFILES,
 };
 
-static const struct dim_cq_moder
+const struct dim_cq_moder
 tx_profile[DIM_CQ_PERIOD_NUM_MODES][NET_DIM_PARAMS_NUM_PROFILES] = {
 	NET_DIM_TX_EQE_PROFILES,
 	NET_DIM_TX_CQE_PROFILES,
-- 
1.8.3.1