Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751863AbdH2TbN (ORCPT ); Tue, 29 Aug 2017 15:31:13 -0400 Received: from a2nlsmtp01-05.prod.iad2.secureserver.net ([198.71.225.49]:40436 "EHLO a2nlsmtp01-05.prod.iad2.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751667AbdH2Tay (ORCPT ); Tue, 29 Aug 2017 15:30:54 -0400 x-originating-ip: 107.180.71.197 From: Long Li To: Steve French , linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, Christoph Hellwig , Tom Talpey , Matthew Wilcox Cc: Long Li Subject: [Patch v3 19/19] CIFS: SMBD: Add SMBDirect debug counters Date: Tue, 29 Aug 2017 12:29:15 -0700 Message-Id: <20170829192915.26251-20-longli@exchange.microsoft.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170829192915.26251-1-longli@exchange.microsoft.com> References: <20170829192915.26251-1-longli@exchange.microsoft.com> X-CMAE-Envelope: MS4wfP2fH8C0z2ElJ9NnH2aEmQCMLoaQS6F2MW2Iu+OxNgQxTOSqrpxK50UigzyyrjrSKZf6TWoCgOcVzK7jnk7e5MtPhuWXX8Z2J3dNj84C4qFj4Qvd2jo0 xp51q0p6ugTTtJptPfF1uq1WvA5aGBQYJ1JDwkRmGTs8aglX5O2DnedXDefHUB1OX1nxKfju2EeTFGIygyV4jQ7FMbO2FyMxdhjvsSTtxB4tjgBy7jIdTyMY Uevv/Eyqx8SLV2Qbu4DLuEcyyhaUPDEjAF3oyeSEytW9CwJiTaI06+3L5QIgwW/M2otmG3ugEVWtoi0Q+0eq4PNxqb5t0bmptTzMviwbyfxocWJf17BPJT4b fRM7z9/rHvnnU5TtEObAb/XYpofpdNoPVbWabu8HhT08eN8P2NQRA5asOUECtAeWly6+2o97rzk8SnXZFYB5c7XWSZvxWEXGYaxtBE7bvDHQMZ5zyAmxtME+ gmx2JmLwCq8EAfwA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4640 Lines: 113 From: Long Li Export SMBDirect debug counters to /proc/fs/cifs/DebugData. Those are used for debugging, troubleshooting and profiling. Signed-off-by: Long Li --- fs/cifs/cifs_debug.c | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index ba0870d..dad13d5 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 +153,87 @@ 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