From: Shai Malin <malin1024@gmail.com>
To: Hannes Reinecke <hare@suse.de>
Cc: Shai Malin <smalin@marvell.com>,
netdev@vger.kernel.org, linux-nvme@lists.infradead.org,
davem@davemloft.net, kuba@kernel.org, sagi@grimberg.me,
hch@lst.de, axboe@fb.com, kbusch@kernel.org,
Ariel Elior <aelior@marvell.com>,
Michal Kalderon <mkalderon@marvell.com>,
okulkarni@marvell.com, pkushwaha@marvell.com
Subject: Re: [RFC PATCH v4 25/27] qedn: Add IO level fastpath functionality
Date: Wed, 5 May 2021 21:04:52 +0300 [thread overview]
Message-ID: <CAKKgK4yq7ZGiad+ToQ9YstosA+3NYb8tcMKQ+iRxtbdVnUOU0Q@mail.gmail.com> (raw)
In-Reply-To: <92c994a9-004e-55b0-b345-6c555953bab0@suse.de>
On 5/2/21 2:54 PM, Hannes Reinecke wrote:
> On 4/29/21 9:09 PM, Shai Malin wrote:
> > This patch will present the IO level functionality of qedn
> > nvme-tcp-offload host mode. The qedn_task_ctx structure is containing
> > various params and state of the current IO, and is mapped 1x1 to the
> > fw_task_ctx which is a HW and FW IO context.
> > A qedn_task is mapped directly to its parent connection.
> > For every new IO a qedn_task structure will be assigned and they will be
> > linked for the entire IO's life span.
> >
> > The patch will include 2 flows:
> > 1. Send new command to the FW:
> > The flow is: nvme_tcp_ofld_queue_rq() which invokes qedn_send_req()
> > which invokes qedn_queue_request() which will:
> > - Assign fw_task_ctx.
> > - Prepare the Read/Write SG buffer.
> > - Initialize the HW and FW context.
> > - Pass the IO to the FW.
> >
> > 2. Process the IO completion:
> > The flow is: qedn_irq_handler() which invokes qedn_fw_cq_fp_handler()
> > which invokes qedn_io_work_cq() which will:
> > - process the FW completion.
> > - Return the fw_task_ctx to the task pool.
> > - complete the nvme req.
> >
> > Acked-by: Igor Russkikh <irusskikh@marvell.com>
> > Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
> > Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
> > Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
> > Signed-off-by: Ariel Elior <aelior@marvell.com>
> > Signed-off-by: Shai Malin <smalin@marvell.com>
> > ---
> > drivers/nvme/hw/qedn/qedn.h | 4 +
> > drivers/nvme/hw/qedn/qedn_conn.c | 1 +
> > drivers/nvme/hw/qedn/qedn_task.c | 269 ++++++++++++++++++++++++++++++-
> > 3 files changed, 272 insertions(+), 2 deletions(-)
> >
> Reviewed-by: Hannes Reinecke <hare@suse.de>
Thanks.
>
> Cheers,
>
> Hannes
> --
> Dr. Hannes Reinecke Kernel Storage Architect
> hare@suse.de +49 911 74053 688
> SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
> HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
next prev parent reply other threads:[~2021-05-05 18:06 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-29 19:08 [RFC PATCH v4 00/27] NVMeTCP Offload ULP and QEDN Device Driver Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 01/27] qed: Add NVMeTCP Offload PF Level FW and HW HSI Shai Malin
2021-05-01 16:50 ` Hannes Reinecke
2021-05-03 15:23 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 02/27] qed: Add NVMeTCP Offload Connection " Shai Malin
2021-05-01 17:28 ` Hannes Reinecke
2021-05-03 15:25 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 03/27] qed: Add qed-NVMeTCP personality Shai Malin
2021-05-02 11:11 ` Hannes Reinecke
2021-05-03 15:26 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 04/27] qed: Add support of HW filter block Shai Malin
2021-05-02 11:13 ` Hannes Reinecke
2021-05-03 15:27 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 05/27] qed: Add NVMeTCP Offload IO Level FW and HW HSI Shai Malin
2021-05-02 11:22 ` Hannes Reinecke
2021-05-04 16:25 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 06/27] qed: Add NVMeTCP Offload IO Level FW Initializations Shai Malin
2021-05-02 11:24 ` Hannes Reinecke
2021-05-04 16:28 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 07/27] qed: Add IP services APIs support Shai Malin
2021-05-02 11:26 ` Hannes Reinecke
2021-05-03 15:44 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 08/27] nvme-tcp-offload: Add nvme-tcp-offload - NVMeTCP HW offload ULP Shai Malin
2021-05-01 12:18 ` Hannes Reinecke
2021-05-03 15:46 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 09/27] nvme-fabrics: Move NVMF_ALLOWED_OPTS and NVMF_REQUIRED_OPTS definitions Shai Malin
2021-05-01 12:19 ` Hannes Reinecke
2021-05-03 15:50 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 10/27] nvme-tcp-offload: Add device scan implementation Shai Malin
2021-05-01 12:25 ` Hannes Reinecke
2021-05-05 17:52 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 11/27] nvme-tcp-offload: Add controller level implementation Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 12/27] nvme-tcp-offload: Add controller level error recovery implementation Shai Malin
2021-05-01 16:29 ` Hannes Reinecke
2021-05-03 15:52 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 13/27] nvme-tcp-offload: Add queue level implementation Shai Malin
2021-05-01 16:36 ` Hannes Reinecke
2021-05-03 15:56 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 14/27] nvme-tcp-offload: Add IO " Shai Malin
2021-05-01 16:38 ` Hannes Reinecke
2021-05-04 16:34 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 15/27] nvme-tcp-offload: Add Timeout and ASYNC Support Shai Malin
2021-05-01 16:45 ` Hannes Reinecke
2021-05-04 16:49 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 16/27] qedn: Add qedn - Marvell's NVMeTCP HW offload vendor driver Shai Malin
2021-05-02 11:27 ` Hannes Reinecke
2021-05-04 16:52 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 17/27] qedn: Add qedn probe Shai Malin
2021-05-02 11:28 ` Hannes Reinecke
2021-05-08 11:01 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 18/27] qedn: Add qedn_claim_dev API support Shai Malin
2021-05-02 11:29 ` Hannes Reinecke
2021-05-07 13:57 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 19/27] qedn: Add IRQ and fast-path resources initializations Shai Malin
2021-05-02 11:32 ` Hannes Reinecke
2021-05-05 17:54 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 20/27] qedn: Add connection-level slowpath functionality Shai Malin
2021-05-02 11:37 ` Hannes Reinecke
2021-05-05 17:56 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 21/27] qedn: Add support of configuring HW filter block Shai Malin
2021-05-02 11:38 ` Hannes Reinecke
2021-05-05 17:57 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 22/27] qedn: Add IO level nvme_req and fw_cq workqueues Shai Malin
2021-05-02 11:42 ` Hannes Reinecke
2021-05-07 13:56 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 23/27] qedn: Add support of Task and SGL Shai Malin
2021-05-02 11:48 ` Hannes Reinecke
2021-05-07 14:00 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 24/27] qedn: Add support of NVME ICReq & ICResp Shai Malin
2021-05-02 11:53 ` Hannes Reinecke
2021-05-05 18:01 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 25/27] qedn: Add IO level fastpath functionality Shai Malin
2021-05-02 11:54 ` Hannes Reinecke
2021-05-05 18:04 ` Shai Malin [this message]
2021-04-29 19:09 ` [RFC PATCH v4 26/27] qedn: Add Connection and IO level recovery flows Shai Malin
2021-05-02 11:57 ` Hannes Reinecke
2021-05-05 18:06 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 27/27] qedn: Add support of ASYNC Shai Malin
2021-05-02 11:59 ` Hannes Reinecke
2021-05-05 18:08 ` Shai Malin
2021-05-01 16:47 ` [RFC PATCH v4 00/27] NVMeTCP Offload ULP and QEDN Device Driver Hannes Reinecke
2021-05-03 15:13 ` Shai Malin
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