From: Long Li <longli@exchange.microsoft.com>
To: Steve French <sfrench@samba.org>,
linux-cifs@vger.kernel.org, samba-technical@lists.samba.org,
linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Tom Talpey <ttalpey@microsoft.com>,
Matthew Wilcox <mawilcox@microsoft.com>
Cc: Long Li <longli@microsoft.com>
Subject: [Patch v4 03/22] CIFS: SMBD: export protocol initial values
Date: Sun, 1 Oct 2017 19:30:11 -0700 [thread overview]
Message-ID: <20171002023030.3582-4-longli@exchange.microsoft.com> (raw)
In-Reply-To: <20171002023030.3582-1-longli@exchange.microsoft.com>
From: Long Li <longli@microsoft.com>
Those values can be configured by user. Export them to /proc/fs/cifs.
Signed-off-by: Long Li <longli@microsoft.com>
---
fs/cifs/cifs_debug.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 9727e1d..bdc2f38 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -369,6 +369,52 @@ static const struct file_operations cifs_stats_proc_fops = {
};
#endif /* STATS */
+#define PROC_FILE_DEFINE(name) \
+static ssize_t name##_write(struct file *file, const char __user *buffer, \
+ size_t count, loff_t *ppos) \
+{ \
+ int rc; \
+ rc = kstrtoint_from_user(buffer, count, 10, & name ); \
+ if (rc) \
+ return rc; \
+ return count; \
+} \
+static int name##_proc_show(struct seq_file *m, void *v) \
+{ \
+ seq_printf(m, "%d\n", name ); \
+ return 0; \
+} \
+static int name##_open(struct inode *inode, struct file *file) \
+{ \
+ return single_open(file, name##_proc_show, NULL); \
+} \
+\
+static const struct file_operations cifs_##name##_proc_fops = { \
+ .open = name##_open, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+ .write = name##_write, \
+}
+
+extern int rdma_readwrite_threshold;
+extern int smbd_max_frmr_depth;
+extern int smbd_keep_alive_interval;
+extern int smbd_max_receive_size;
+extern int smbd_max_fragmented_recv_size;
+extern int smbd_max_send_size;
+extern int smbd_send_credit_target;
+extern int smbd_receive_credit_max;
+
+PROC_FILE_DEFINE(rdma_readwrite_threshold);
+PROC_FILE_DEFINE(smbd_max_frmr_depth);
+PROC_FILE_DEFINE(smbd_keep_alive_interval);
+PROC_FILE_DEFINE(smbd_max_receive_size);
+PROC_FILE_DEFINE(smbd_max_fragmented_recv_size);
+PROC_FILE_DEFINE(smbd_max_send_size);
+PROC_FILE_DEFINE(smbd_send_credit_target);
+PROC_FILE_DEFINE(smbd_receive_credit_max);
+
static struct proc_dir_entry *proc_fs_cifs;
static const struct file_operations cifsFYI_proc_fops;
static const struct file_operations cifs_lookup_cache_proc_fops;
@@ -396,6 +442,22 @@ cifs_proc_init(void)
&cifs_security_flags_proc_fops);
proc_create("LookupCacheEnabled", 0, proc_fs_cifs,
&cifs_lookup_cache_proc_fops);
+ proc_create("rdma_readwrite_threshold", 0, proc_fs_cifs,
+ &cifs_rdma_readwrite_threshold_proc_fops);
+ proc_create("smbd_max_frmr_depth", 0, proc_fs_cifs,
+ &cifs_smbd_max_frmr_depth_proc_fops);
+ proc_create("smbd_keep_alive_interval", 0, proc_fs_cifs,
+ &cifs_smbd_keep_alive_interval_proc_fops);
+ proc_create("smbd_max_receive_size", 0, proc_fs_cifs,
+ &cifs_smbd_max_receive_size_proc_fops);
+ proc_create("smbd_max_fragmented_recv_size", 0, proc_fs_cifs,
+ &cifs_smbd_max_fragmented_recv_size_proc_fops);
+ proc_create("smbd_max_send_size", 0, proc_fs_cifs,
+ &cifs_smbd_max_send_size_proc_fops);
+ proc_create("smbd_send_credit_target", 0, proc_fs_cifs,
+ &cifs_smbd_send_credit_target_proc_fops);
+ proc_create("smbd_receive_credit_max", 0, proc_fs_cifs,
+ &cifs_smbd_receive_credit_max_proc_fops);
}
void
@@ -413,6 +475,14 @@ cifs_proc_clean(void)
remove_proc_entry("SecurityFlags", proc_fs_cifs);
remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
+ remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs);
+ remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs);
+ remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs);
+ remove_proc_entry("smbd_max_receive_size", proc_fs_cifs);
+ remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs);
+ remove_proc_entry("smbd_max_send_size", proc_fs_cifs);
+ remove_proc_entry("smbd_send_credit_target", proc_fs_cifs);
+ remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs);
remove_proc_entry("fs/cifs", NULL);
}
--
2.7.4
next prev parent reply other threads:[~2017-10-02 2:30 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-02 2:30 [Patch v4 00/22] CIFS: Implement SMBDirect Long Li
2017-10-02 2:30 ` [Patch v4 01/22] CIFS: SMBD: Add SMBDirect protocol initial values and constants Long Li
2017-10-02 2:30 ` [Patch v4 02/22] CIFS: SMBD: Establish SMBDirect connection Long Li
[not found] ` <20171002023030.3582-3-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org>
2017-10-04 11:01 ` kbuild test robot
2017-10-02 2:30 ` Long Li [this message]
2017-10-02 2:30 ` [Patch v4 04/22] CIFS: SMBD: Add rdma mount option Long Li
2017-10-02 2:30 ` [Patch v4 08/22] CIFS: SMBD: Upper layer reconnects to SMBDirect session Long Li
2017-10-02 2:30 ` [Patch v4 09/22] CIFS: SMBD: Implement function to destroy a SMBDirect connection Long Li
2017-10-02 2:30 ` [Patch v4 11/22] CIFS: SMBD: Set SMBDirect maximum read or write size for I/O Long Li
2017-10-02 2:30 ` [Patch v4 12/22] CIFS: SMBD: Implement function to receive data via RDMA receive Long Li
[not found] ` <20171002023030.3582-13-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org>
2017-10-04 9:43 ` kbuild test robot
2017-10-02 2:30 ` [Patch v4 14/22] CIFS: SMBD: Implement function to send data via RDMA send Long Li
[not found] ` <20171002023030.3582-15-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org>
2017-10-04 9:43 ` kbuild test robot
2017-10-04 10:05 ` kbuild test robot
2017-10-02 2:30 ` [Patch v4 15/22] CIFS: SMBD: Upper layer sends " Long Li
2017-10-02 2:30 ` [Patch v4 16/22] CIFS: SMBD: Fix the definition for SMB2_CHANNEL_RDMA_V1_INVALIDATE Long Li
[not found] ` <20171002023030.3582-17-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org>
2017-10-04 22:07 ` Steve French
2017-10-02 2:30 ` [Patch v4 17/22] CIFS: SMBD: Implement RDMA memory registration Long Li
2017-10-04 14:08 ` kbuild test robot
[not found] ` <20171002023030.3582-1-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org>
2017-10-02 2:30 ` [Patch v4 05/22] CIFS: SMBD: Implement function to create a SMBDirect connection Long Li
2017-10-02 2:30 ` [Patch v4 06/22] CIFS: SMBD: Upper layer connects to SMBDirect session Long Li
2017-10-02 2:30 ` [Patch v4 07/22] CIFS: SMBD: Implement function to reconnect to a SMBDirect transport Long Li
2017-10-02 2:30 ` [Patch v4 10/22] CIFS: SMBD: Upper layer destroys SMBDirect session on shutdown or umount Long Li
2017-10-02 2:30 ` [Patch v4 13/22] CIFS: SMBD: Upper layer receives data via RDMA receive Long Li
2017-10-02 2:30 ` [Patch v4 18/22] CIFS: SMBD: Upper layer performs SMB write via RDMA read through memory registration Long Li
2017-10-02 2:30 ` [Patch v4 21/22] CIFS: SMBD: Upper layer performs SMB read via RDMA write " Long Li
2017-10-02 2:30 ` [Patch v4 19/22] CIFS: SMBD: Add parameter rdata to smb2_new_read_req Long Li
2017-10-02 2:30 ` [Patch v4 20/22] CIFS: SMBD: Read correct returned data length for RDMA write (SMB read) I/O Long Li
2017-10-02 2:30 ` [Patch v4 22/22] CIFS: SMBD: Add SMBDirect debug counters Long Li
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