From patchwork Mon Oct 2 02:30:30 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 9980105 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5169C60365 for ; Mon, 2 Oct 2017 02:33:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3B657289AC for ; Mon, 2 Oct 2017 02:33:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 303A2289B3; Mon, 2 Oct 2017 02:33:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C64B5289AC for ; Mon, 2 Oct 2017 02:33:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752031AbdJBCdD (ORCPT ); Sun, 1 Oct 2017 22:33:03 -0400 Received: from a2nlsmtp01-04.prod.iad2.secureserver.net ([198.71.225.38]:55832 "EHLO a2nlsmtp01-04.prod.iad2.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752173AbdJBCb7 (ORCPT ); Sun, 1 Oct 2017 22:31:59 -0400 Received: from linuxonhyperv.com ([107.180.71.197]) by : HOSTING RELAY : with SMTP id yqVJdQBYnalZvyqVJdba5c; Sun, 01 Oct 2017 19:30:58 -0700 x-originating-ip: 107.180.71.197 Received: from longli by linuxonhyperv.com with local (Exim 4.89) (envelope-from ) id 1dyqVJ-0000ya-9o; Sun, 01 Oct 2017 19:30:45 -0700 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 v4 22/22] CIFS: SMBD: Add SMBDirect debug counters Date: Sun, 1 Oct 2017 19:30:30 -0700 Message-Id: <20171002023030.3582-23-longli@exchange.microsoft.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171002023030.3582-1-longli@exchange.microsoft.com> References: <20171002023030.3582-1-longli@exchange.microsoft.com> X-CMAE-Envelope: MS4wfM6PQzR+80r77YOa+wUr440otwCzTP8BS/C53YwbeLuGNLPfkZxawUqaUPuBqVzT8yToXrNdD0Y/G/XfbHU60kxCHjd3QH6xx1Dw+ZY8IIWGbW8RXMTZ mAOuwMVzQaLTMeqegXj94v63PJe+zTZ1D0ZgrSg6apb2o6CLKumw0ntIFRNNYHf5MFh7FBYShmz8nv+IaBkZk/+17HuVjOgR2zzA/ElojWcyAilA8s8VgUS9 5T4AnHMoUDl8aUIlO0SEV/C5Dl3OABE++9x7cvYWPYaToVbpORa7uEA9lfhBBGDCZMWUkTGr3my/j1BGqU/+cyYVpKx9hdMszD0SX5YfoFb+TS2YxFwsUjQg 0B8oiF7PAlgTxosC+KFNjUa0y+JR1GqNmMvNp0ggQMoUTwZafIoyXONEw9YO18Iq35Ju3lHiLZZdh8Qv9qnaxOUBIHsfryWlvvBVBW9J8gOnOyvscmZU3TJF UE1UXemHk7cHidPq Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 | 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) {