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Date: Fri, 18 May 2018 09:34:14 +0200
From: Ursula Braun <ubraun@...ux.ibm.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, linux-s390@...r.kernel.org,
schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
raspl@...ux.ibm.com, ubraun@...ux.ibm.com
Subject: [PATCH net-next 5/9] net/smc: move smc_core specific code from smc.h to smc_core
From: Hans Wippel <hwippel@...ux.ibm.com>
SMC connection and buffer handling belong to smc_core. So, this patch
moves this code from smc.h to smc_core.
Signed-off-by: Hans Wippel <hwippel@...ux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@...ux.ibm.com>
---
net/smc/smc.h | 41 -----------------------------------------
net/smc/smc_core.c | 27 +++++++++++++++++++++++++++
net/smc/smc_core.h | 12 ++++++++++++
3 files changed, 39 insertions(+), 41 deletions(-)
diff --git a/net/smc/smc.h b/net/smc/smc.h
index 9bc37645e7d5..a1467e411645 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -220,41 +220,6 @@ static inline u32 ntoh24(u8 *net)
return be32_to_cpu(t);
}
-#define SMC_BUF_MIN_SIZE 16384 /* minimum size of an RMB */
-
-#define SMC_RMBE_SIZES 16 /* number of distinct sizes for an RMBE */
-/* theoretically, the RFC states that largest size would be 512K,
- * i.e. compressed 5 and thus 6 sizes (0..5), despite
- * struct smc_clc_msg_accept_confirm.rmbe_size being a 4 bit value (0..15)
- */
-
-/* convert the RMB size into the compressed notation - minimum 16K.
- * In contrast to plain ilog2, this rounds towards the next power of 2,
- * so the socket application gets at least its desired sndbuf / rcvbuf size.
- */
-static inline u8 smc_compress_bufsize(int size)
-{
- u8 compressed;
-
- if (size <= SMC_BUF_MIN_SIZE)
- return 0;
-
- size = (size - 1) >> 14;
- compressed = ilog2(size) + 1;
- if (compressed >= SMC_RMBE_SIZES)
- compressed = SMC_RMBE_SIZES - 1;
- return compressed;
-}
-
-/* convert the RMB size from compressed notation into integer */
-static inline int smc_uncompress_bufsize(u8 compressed)
-{
- u32 size;
-
- size = 0x00000001 << (((int)compressed) + 14);
- return (int)size;
-}
-
#ifdef CONFIG_XFRM
static inline bool using_ipsec(struct smc_sock *smc)
{
@@ -268,12 +233,6 @@ static inline bool using_ipsec(struct smc_sock *smc)
}
#endif
-struct smc_clc_msg_local;
-
-void smc_conn_free(struct smc_connection *conn);
-int smc_conn_create(struct smc_sock *smc,
- struct smc_ib_device *smcibdev, u8 ibport,
- struct smc_clc_msg_local *lcl, int srv_first_contact);
struct sock *smc_accept_dequeue(struct sock *parent, struct socket *new_sock);
void smc_close_non_accepted(struct sock *sk);
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 70ab2f716f83..66afa086ae72 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -543,6 +543,33 @@ int smc_conn_create(struct smc_sock *smc,
return rc ? rc : local_contact;
}
+/* convert the RMB size into the compressed notation - minimum 16K.
+ * In contrast to plain ilog2, this rounds towards the next power of 2,
+ * so the socket application gets at least its desired sndbuf / rcvbuf size.
+ */
+static u8 smc_compress_bufsize(int size)
+{
+ u8 compressed;
+
+ if (size <= SMC_BUF_MIN_SIZE)
+ return 0;
+
+ size = (size - 1) >> 14;
+ compressed = ilog2(size) + 1;
+ if (compressed >= SMC_RMBE_SIZES)
+ compressed = SMC_RMBE_SIZES - 1;
+ return compressed;
+}
+
+/* convert the RMB size from compressed notation into integer */
+int smc_uncompress_bufsize(u8 compressed)
+{
+ u32 size;
+
+ size = 0x00000001 << (((int)compressed) + 14);
+ return (int)size;
+}
+
/* try to reuse a sndbuf or rmb description slot for a certain
* buffer size; if not available, return NULL
*/
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h
index 3d4bd7011ab3..93cb3523bf50 100644
--- a/net/smc/smc_core.h
+++ b/net/smc/smc_core.h
@@ -141,6 +141,12 @@ struct smc_rtoken { /* address/key of remote RMB */
};
#define SMC_LGR_ID_SIZE 4
+#define SMC_BUF_MIN_SIZE 16384 /* minimum size of an RMB */
+#define SMC_RMBE_SIZES 16 /* number of distinct RMBE sizes */
+/* theoretically, the RFC states that largest size would be 512K,
+ * i.e. compressed 5 and thus 6 sizes (0..5), despite
+ * struct smc_clc_msg_accept_confirm.rmbe_size being a 4 bit value (0..15)
+ */
struct smc_link_group {
struct list_head list;
@@ -205,12 +211,14 @@ static inline struct smc_connection *smc_lgr_find_conn(
struct smc_sock;
struct smc_clc_msg_accept_confirm;
+struct smc_clc_msg_local;
void smc_lgr_free(struct smc_link_group *lgr);
void smc_lgr_forget(struct smc_link_group *lgr);
void smc_lgr_terminate(struct smc_link_group *lgr);
void smc_port_terminate(struct smc_ib_device *smcibdev, u8 ibport);
int smc_buf_create(struct smc_sock *smc);
+int smc_uncompress_bufsize(u8 compressed);
int smc_rmb_rtoken_handling(struct smc_connection *conn,
struct smc_clc_msg_accept_confirm *clc);
int smc_rtoken_add(struct smc_link_group *lgr, __be64 nw_vaddr, __be32 nw_rkey);
@@ -219,5 +227,9 @@ void smc_sndbuf_sync_sg_for_cpu(struct smc_connection *conn);
void smc_sndbuf_sync_sg_for_device(struct smc_connection *conn);
void smc_rmb_sync_sg_for_cpu(struct smc_connection *conn);
void smc_rmb_sync_sg_for_device(struct smc_connection *conn);
+void smc_conn_free(struct smc_connection *conn);
+int smc_conn_create(struct smc_sock *smc,
+ struct smc_ib_device *smcibdev, u8 ibport,
+ struct smc_clc_msg_local *lcl, int srv_first_contact);
void smc_core_exit(void);
#endif
--
2.16.3
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