From: Leif Sahlberg <lsahlber-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> To: Long Li <longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> Cc: Steve French <sfrench-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>, linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, samba-technical-w/Ol4Ecudpl8XjKLYN78aQ@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>, Tom Talpey <ttalpey-0li6OtcxBFHby3iVrkZq2A@public.gmane.org>, Matthew Wilcox <mawilcox-0li6OtcxBFHby3iVrkZq2A@public.gmane.org>, Stephen Hemminger <sthemmin-0li6OtcxBFHby3iVrkZq2A@public.gmane.org>, Long Li <longli-0li6OtcxBFHby3iVrkZq2A@public.gmane.org> Subject: Re: [Patch v7 04/22] CIFS: SMBD: Add SMB Direct protocol initial values and constants Date: Mon, 20 Nov 2017 00:31:26 -0500 (EST) [thread overview] Message-ID: <813959480.28436250.1511155886143.JavaMail.zimbra@redhat.com> (raw) In-Reply-To: <20171107085514.12693-5-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> Acked-by: Ronnie Sahlberg <lsahlber-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> ----- Original Message ----- From: "Long Li" <longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> To: "Steve French" <sfrench-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>, linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, samba-technical-w/Ol4Ecudpl8XjKLYN78aQ@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Christoph Hellwig" <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>, "Tom Talpey" <ttalpey-0li6OtcxBFHby3iVrkZq2A@public.gmane.org>, "Matthew Wilcox" <mawilcox-0li6OtcxBFHby3iVrkZq2A@public.gmane.org>, "Stephen Hemminger" <sthemmin-0li6OtcxBFHby3iVrkZq2A@public.gmane.org> Cc: "Long Li" <longli-0li6OtcxBFHby3iVrkZq2A@public.gmane.org> Sent: Tuesday, 7 November, 2017 7:54:56 PM Subject: [Patch v7 04/22] CIFS: SMBD: Add SMB Direct protocol initial values and constants From: Long Li <longli-0li6OtcxBFHby3iVrkZq2A@public.gmane.org> To prepare for protocol implementation, add constants and user-configurable values for the SMB Direct protocol. Signed-off-by: Long Li <longli-0li6OtcxBFHby3iVrkZq2A@public.gmane.org> --- fs/cifs/smbdirect.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/cifs/smbdirect.h | 21 +++++++++++++++ 2 files changed, 98 insertions(+) create mode 100644 fs/cifs/smbdirect.c create mode 100644 fs/cifs/smbdirect.h diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c new file mode 100644 index 0000000..d3c16f8 --- /dev/null +++ b/fs/cifs/smbdirect.c @@ -0,0 +1,77 @@ +/* + * Copyright (C) 2017, Microsoft Corporation. + * + * Author(s): Long Li <longli-0li6OtcxBFHby3iVrkZq2A@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + */ +#include "smbdirect.h" + +/* SMBD version number */ +#define SMBD_V1 0x0100 + +/* Port numbers for SMBD transport */ +#define SMB_PORT 445 +#define SMBD_PORT 5445 + +/* Address lookup and resolve timeout in ms */ +#define RDMA_RESOLVE_TIMEOUT 5000 + +/* SMBD negotiation timeout in seconds */ +#define SMBD_NEGOTIATE_TIMEOUT 120 + +/* SMBD minimum receive size and fragmented sized defined in [MS-SMBD] */ +#define SMBD_MIN_RECEIVE_SIZE 128 +#define SMBD_MIN_FRAGMENTED_SIZE 131072 + +/* + * Default maximum number of RDMA read/write outstanding on this connection + * This value is possibly decreased during QP creation on hardware limit + */ +#define SMBD_CM_RESPONDER_RESOURCES 32 + +/* Maximum number of retries on data transfer operations */ +#define SMBD_CM_RETRY 6 +/* No need to retry on Receiver Not Ready since SMBD manages credits */ +#define SMBD_CM_RNR_RETRY 0 + +/* + * User configurable initial values per SMBD transport connection + * as defined in [MS-SMBD] 3.1.1.1 + * Those may change after a SMBD negotiation + */ +/* The local peer's maximum number of credits to grant to the peer */ +int smbd_receive_credit_max = 255; + +/* The remote peer's credit request of local peer */ +int smbd_send_credit_target = 255; + +/* The maximum single message size can be sent to remote peer */ +int smbd_max_send_size = 1364; + +/* The maximum fragmented upper-layer payload receive size supported */ +int smbd_max_fragmented_recv_size = 1024 * 1024; + +/* The maximum single-message size which can be received */ +int smbd_max_receive_size = 8192; + +/* The timeout to initiate send of a keepalive message on idle */ +int smbd_keep_alive_interval = 120; + +/* + * User configurable initial values for RDMA transport + * The actual values used may be lower and are limited to hardware capabilities + */ +/* Default maximum number of SGEs in a RDMA write/read */ +int smbd_max_frmr_depth = 2048; + +/* If payload is less than this byte, use RDMA send/recv not read/write */ +int rdma_readwrite_threshold = 4096; diff --git a/fs/cifs/smbdirect.h b/fs/cifs/smbdirect.h new file mode 100644 index 0000000..c55f28b --- /dev/null +++ b/fs/cifs/smbdirect.h @@ -0,0 +1,21 @@ +/* + * Copyright (C) 2017, Microsoft Corporation. + * + * Author(s): Long Li <longli-0li6OtcxBFHby3iVrkZq2A@public.gmane.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + */ +#ifndef _SMBDIRECT_H +#define _SMBDIRECT_H + +/* Default maximum number of SGEs in a RDMA send/recv */ +#define SMBDIRECT_MAX_SGE 16 +#endif -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html
WARNING: multiple messages have this Message-ID (diff)
From: Leif Sahlberg <lsahlber@redhat.com> To: Long Li <longli@exchange.microsoft.com> Cc: 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>, Stephen Hemminger <sthemmin@microsoft.com>, Long Li <longli@microsoft.com> Subject: Re: [Patch v7 04/22] CIFS: SMBD: Add SMB Direct protocol initial values and constants Date: Mon, 20 Nov 2017 00:31:26 -0500 (EST) [thread overview] Message-ID: <813959480.28436250.1511155886143.JavaMail.zimbra@redhat.com> (raw) In-Reply-To: <20171107085514.12693-5-longli@exchange.microsoft.com> Acked-by: Ronnie Sahlberg <lsahlber@redhat.com> ----- Original Message ----- 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>, "Stephen Hemminger" <sthemmin@microsoft.com> Cc: "Long Li" <longli@microsoft.com> Sent: Tuesday, 7 November, 2017 7:54:56 PM Subject: [Patch v7 04/22] CIFS: SMBD: Add SMB Direct protocol initial values and constants From: Long Li <longli@microsoft.com> To prepare for protocol implementation, add constants and user-configurable values for the SMB Direct protocol. Signed-off-by: Long Li <longli@microsoft.com> --- fs/cifs/smbdirect.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/cifs/smbdirect.h | 21 +++++++++++++++ 2 files changed, 98 insertions(+) create mode 100644 fs/cifs/smbdirect.c create mode 100644 fs/cifs/smbdirect.h diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c new file mode 100644 index 0000000..d3c16f8 --- /dev/null +++ b/fs/cifs/smbdirect.c @@ -0,0 +1,77 @@ +/* + * Copyright (C) 2017, Microsoft Corporation. + * + * Author(s): Long Li <longli@microsoft.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + */ +#include "smbdirect.h" + +/* SMBD version number */ +#define SMBD_V1 0x0100 + +/* Port numbers for SMBD transport */ +#define SMB_PORT 445 +#define SMBD_PORT 5445 + +/* Address lookup and resolve timeout in ms */ +#define RDMA_RESOLVE_TIMEOUT 5000 + +/* SMBD negotiation timeout in seconds */ +#define SMBD_NEGOTIATE_TIMEOUT 120 + +/* SMBD minimum receive size and fragmented sized defined in [MS-SMBD] */ +#define SMBD_MIN_RECEIVE_SIZE 128 +#define SMBD_MIN_FRAGMENTED_SIZE 131072 + +/* + * Default maximum number of RDMA read/write outstanding on this connection + * This value is possibly decreased during QP creation on hardware limit + */ +#define SMBD_CM_RESPONDER_RESOURCES 32 + +/* Maximum number of retries on data transfer operations */ +#define SMBD_CM_RETRY 6 +/* No need to retry on Receiver Not Ready since SMBD manages credits */ +#define SMBD_CM_RNR_RETRY 0 + +/* + * User configurable initial values per SMBD transport connection + * as defined in [MS-SMBD] 3.1.1.1 + * Those may change after a SMBD negotiation + */ +/* The local peer's maximum number of credits to grant to the peer */ +int smbd_receive_credit_max = 255; + +/* The remote peer's credit request of local peer */ +int smbd_send_credit_target = 255; + +/* The maximum single message size can be sent to remote peer */ +int smbd_max_send_size = 1364; + +/* The maximum fragmented upper-layer payload receive size supported */ +int smbd_max_fragmented_recv_size = 1024 * 1024; + +/* The maximum single-message size which can be received */ +int smbd_max_receive_size = 8192; + +/* The timeout to initiate send of a keepalive message on idle */ +int smbd_keep_alive_interval = 120; + +/* + * User configurable initial values for RDMA transport + * The actual values used may be lower and are limited to hardware capabilities + */ +/* Default maximum number of SGEs in a RDMA write/read */ +int smbd_max_frmr_depth = 2048; + +/* If payload is less than this byte, use RDMA send/recv not read/write */ +int rdma_readwrite_threshold = 4096; diff --git a/fs/cifs/smbdirect.h b/fs/cifs/smbdirect.h new file mode 100644 index 0000000..c55f28b --- /dev/null +++ b/fs/cifs/smbdirect.h @@ -0,0 +1,21 @@ +/* + * Copyright (C) 2017, Microsoft Corporation. + * + * Author(s): Long Li <longli@microsoft.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + */ +#ifndef _SMBDIRECT_H +#define _SMBDIRECT_H + +/* Default maximum number of SGEs in a RDMA send/recv */ +#define SMBDIRECT_MAX_SGE 16 +#endif -- 2.7.4
next prev parent reply other threads:[~2017-11-20 5:31 UTC|newest] Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-11-07 8:54 [Patch v7 00/22] CIFS: Implement SMB Direct protocol Long Li 2017-11-07 8:54 ` [Patch v7 01/22] CIFS: SMBD: Add parameter rdata to smb2_new_read_req Long Li [not found] ` <20171107085514.12693-2-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> 2017-11-16 23:06 ` Pavel Shilovskiy 2017-11-16 23:06 ` Pavel Shilovskiy 2017-11-16 23:06 ` Pavel Shilovskiy 2017-11-20 5:28 ` Leif Sahlberg 2017-11-20 5:28 ` Leif Sahlberg 2017-11-07 8:54 ` [Patch v7 04/22] CIFS: SMBD: Add SMB Direct protocol initial values and constants Long Li [not found] ` <20171107085514.12693-5-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> 2017-11-20 5:31 ` Leif Sahlberg [this message] 2017-11-20 5:31 ` Leif Sahlberg 2017-11-07 8:54 ` [Patch v7 05/22] CIFS: SMBD: Establish SMB Direct connection Long Li [not found] ` <20171107085514.12693-6-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> 2017-11-20 1:36 ` ronnie sahlberg 2017-11-20 1:36 ` ronnie sahlberg 2017-11-20 5:46 ` Leif Sahlberg 2017-11-20 5:46 ` Leif Sahlberg [not found] ` <817309867.28473523.1511156807466.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2017-11-20 6:07 ` Long Li 2017-11-20 6:07 ` Long Li 2017-11-07 8:54 ` [Patch v7 07/22] CIFS: SMBD: Implement function to create a " Long Li [not found] ` <20171107085514.12693-1-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> 2017-11-07 8:54 ` [Patch v7 02/22] CIFS: SMBD: Introduce kernel config option CONFIG_CIFS_SMB_DIRECT Long Li 2017-11-07 8:54 ` Long Li [not found] ` <20171107085514.12693-3-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> 2017-11-16 23:08 ` Pavel Shilovskiy 2017-11-16 23:08 ` Pavel Shilovskiy 2017-11-16 23:08 ` Pavel Shilovskiy 2017-11-20 5:28 ` Leif Sahlberg 2017-11-20 5:28 ` Leif Sahlberg 2017-11-07 8:54 ` [Patch v7 03/22] CIFS: SMBD: Add rdma mount option Long Li 2017-11-07 8:54 ` Long Li [not found] ` <20171107085514.12693-4-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> 2017-11-16 23:18 ` Pavel Shilovskiy 2017-11-16 23:18 ` Pavel Shilovskiy 2017-11-16 23:18 ` Pavel Shilovskiy 2017-11-20 5:30 ` Leif Sahlberg 2017-11-20 5:30 ` Leif Sahlberg 2017-11-07 8:54 ` [Patch v7 06/22] CIFS: SMBD: export protocol initial values Long Li 2017-11-07 8:54 ` Long Li [not found] ` <20171107085514.12693-7-longli-Lp/cVzEoVyZiJJESP9tAQJZ3qXmFLfmx@public.gmane.org> 2017-11-20 7:37 ` Leif Sahlberg 2017-11-20 7:37 ` Leif Sahlberg 2017-11-20 16:55 ` Steve French 2017-11-07 8:55 ` [Patch v7 08/22] CIFS: SMBD: Upper layer connects to SMBDirect session Long Li 2017-11-07 8:55 ` Long Li 2017-11-07 8:55 ` [Patch v7 15/22] CIFS: SMBD: Upper layer receives data via RDMA receive Long Li 2017-11-07 8:55 ` Long Li 2017-11-21 5:16 ` [Patch v7 00/22] CIFS: Implement SMB Direct protocol Steve French 2017-11-21 5:16 ` Steve French 2017-11-07 8:55 ` [Patch v7 09/22] CIFS: SMBD: Implement function to reconnect to a SMB Direct transport Long Li 2017-11-07 8:55 ` [Patch v7 10/22] CIFS: SMBD: Upper layer reconnects to SMB Direct session Long Li 2017-11-07 8:55 ` [Patch v7 11/22] CIFS: SMBD: Implement function to destroy a SMB Direct connection Long Li 2017-11-07 8:55 ` [Patch v7 12/22] CIFS: SMBD: Upper layer destroys SMB Direct session on shutdown or umount Long Li 2017-11-07 8:55 ` [Patch v7 13/22] CIFS: SMBD: Set SMB Direct maximum read or write size for I/O Long Li 2017-11-07 8:55 ` [Patch v7 14/22] CIFS: SMBD: Implement function to receive data via RDMA receive Long Li 2017-11-07 8:55 ` [Patch v7 16/22] CIFS: SMBD: Implement function to send data via RDMA send Long Li 2017-11-07 8:55 ` [Patch v7 17/22] CIFS: SMBD: Upper layer sends " Long Li 2017-11-07 8:55 ` [Patch v7 18/22] CIFS: SMBD: Implement RDMA memory registration Long Li 2017-11-07 8:55 ` [Patch v7 19/22] CIFS: SMBD: Upper layer performs SMB write via RDMA read through " Long Li 2017-11-07 8:55 ` [Patch v7 20/22] CIFS: SMBD: Read correct returned data length for RDMA write (SMB read) I/O Long Li 2017-11-07 8:55 ` [Patch v7 21/22] CIFS: SMBD: Upper layer performs SMB read via RDMA write through memory registration Long Li 2018-09-19 5:59 ` Tom Talpey 2018-09-20 17:01 ` Long Li 2018-09-22 3:56 ` Stefan Metzmacher 2018-09-22 17:16 ` Tom Talpey 2018-09-23 21:24 ` Stefan Metzmacher 2018-09-24 4:00 ` Tom Talpey 2018-09-24 4:07 ` Stefan Metzmacher 2017-11-07 8:55 ` [Patch v7 22/22] CIFS: SMBD: Add SMB Direct debug counters Long Li
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