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 22/22] CIFS: SMBD: Add SMBDirect debug counters
Date: Sun, 1 Oct 2017 19:30:30 -0700 [thread overview]
Message-ID: <20171002023030.3582-23-longli@exchange.microsoft.com> (raw)
In-Reply-To: <20171002023030.3582-1-longli@exchange.microsoft.com>
From: Long Li <longli@microsoft.com>
Export SMBDirect debug counters to /proc/fs/cifs/DebugData.
Those are used for debugging, troubleshooting and profiling.
Signed-off-by: Long Li <longli@microsoft.com>
---
fs/cifs/cifs_debug.c | 87 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 87 insertions(+)
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 9738026..1ea78d5 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -30,6 +30,7 @@
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifsfs.h"
+#include "smbdirect.h"
void
cifs_dump_mem(char *label, void *data, int length)
@@ -152,6 +153,92 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
list_for_each(tmp1, &cifs_tcp_ses_list) {
server = list_entry(tmp1, struct TCP_Server_Info,
tcp_ses_list);
+
+ if (!server->rdma)
+ goto skip_rdma;
+
+ seq_printf(m, "\nSMBDirect (in hex) protocol version: %x "
+ "transport status: %x",
+ server->smbd_conn->protocol,
+ server->smbd_conn->transport_status);
+ seq_printf(m, "\nConn receive_credit_max: %x "
+ "send_credit_target: %x max_send_size: %x",
+ server->smbd_conn->receive_credit_max,
+ server->smbd_conn->send_credit_target,
+ server->smbd_conn->max_send_size);
+ seq_printf(m, "\nConn max_fragmented_recv_size: %x "
+ "max_fragmented_send_size: %x max_receive_size:%x",
+ server->smbd_conn->max_fragmented_recv_size,
+ server->smbd_conn->max_fragmented_send_size,
+ server->smbd_conn->max_receive_size);
+ seq_printf(m, "\nConn keep_alive_interval: %x "
+ "max_readwrite_size: %x rdma_readwrite_threshold: %x",
+ server->smbd_conn->keep_alive_interval,
+ server->smbd_conn->max_readwrite_size,
+ server->smbd_conn->rdma_readwrite_threshold);
+ seq_printf(m, "\nDebug count_get_receive_buffer: %x "
+ "count_put_receive_buffer: %x count_send_empty: %x",
+ server->smbd_conn->count_get_receive_buffer,
+ server->smbd_conn->count_put_receive_buffer,
+ server->smbd_conn->count_send_empty);
+ seq_printf(m, "\nRead Queue count_reassembly_queue: %x "
+ "count_enqueue_reassembly_queue: %x "
+ "count_dequeue_reassembly_queue: %x "
+ "fragment_reassembly_remaining: %x "
+ "reassembly_data_length: %x "
+ "reassembly_queue_length: %x",
+ server->smbd_conn->count_reassembly_queue,
+ server->smbd_conn->count_enqueue_reassembly_queue,
+ server->smbd_conn->count_dequeue_reassembly_queue,
+ server->smbd_conn->fragment_reassembly_remaining,
+ server->smbd_conn->reassembly_data_length,
+ server->smbd_conn->reassembly_queue_length);
+ seq_printf(m, "\nCurrent Credits send_credits: %x "
+ "receive_credits: %x receive_credit_target: %x",
+ atomic_read(&server->smbd_conn->send_credits),
+ atomic_read(&server->smbd_conn->receive_credits),
+ server->smbd_conn->receive_credit_target);
+ seq_printf(m, "\nPending send_pending: %x send_payload_pending:"
+ " %x smbd_send_pending: %x smbd_recv_pending: %x",
+ atomic_read(&server->smbd_conn->send_pending),
+ atomic_read(&server->smbd_conn->send_payload_pending),
+ server->smbd_conn->smbd_send_pending,
+ server->smbd_conn->smbd_recv_pending);
+ seq_printf(m, "\nReceive buffers count_receive_queue: %x "
+ "count_empty_packet_queue: %x",
+ server->smbd_conn->count_receive_queue,
+ server->smbd_conn->count_empty_packet_queue);
+ seq_printf(m, "\nMR responder_resources: %x "
+ "max_frmr_depth: %x mr_type: %x",
+ server->smbd_conn->responder_resources,
+ server->smbd_conn->max_frmr_depth,
+ server->smbd_conn->mr_type);
+ seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x",
+ atomic_read(&server->smbd_conn->mr_ready_count),
+ atomic_read(&server->smbd_conn->mr_used_count));
+
+ seq_printf(m, "\nTSC cycle histogram in I/O path: "
+ "(the number of most significant bits)");
+ seq_printf(m, "\nsmbd_register_mr cycles [1/10000]: ");
+ profiling_display_histogram(
+ m, server->smbd_conn->smbd_register_mr_cycles);
+
+ seq_printf(m, "\nsmbd_deregister_mr cycles [1/10000]: ");
+ profiling_display_histogram(
+ m, server->smbd_conn->smbd_deregister_mr_cycles);
+
+ seq_printf(m, "\nsmbd_send cycles [1/10000]: ");
+ profiling_display_histogram(
+ m, server->smbd_conn->smbd_write_cycles);
+
+ seq_printf(m, "\nsmbd_recv cycles [1/10000]: ");
+ profiling_display_histogram(
+ m, server->smbd_conn->smbd_recv_cycles);
+
+ seq_printf(m, "\nrecv_done cycles [1/10000]: ");
+ profiling_display_histogram(
+ m, server->smbd_conn->recv_done_cycles);
+skip_rdma:
seq_printf(m, "\nNumber of credits: %d", server->credits);
i++;
list_for_each(tmp2, &server->smb_ses_list) {
--
2.7.4
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 ` [Patch v4 03/22] CIFS: SMBD: export protocol initial values Long Li
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
[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 " 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 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
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 ` Long Li [this message]
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