All of lore.kernel.org
 help / color / mirror / Atom feed
From: "K. Y. Srinivasan" <kys@microsoft.com>
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	devel@linuxdriverproject.org, ohering@suse.com,
	jbottomley@parallels.com, hch@infradead.org,
	linux-scsi@vger.kernel.org, apw@canonical.com,
	vkuznets@redhat.com, jasowang@redhat.com
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Subject: [PATCH RESEND 4/7] scsi: storvsc: Retrieve information about the capability of the target
Date: Mon, 23 Mar 2015 14:06:38 -0700	[thread overview]
Message-ID: <1427144801-11920-4-git-send-email-kys@microsoft.com> (raw)
In-Reply-To: <1427144801-11920-1-git-send-email-kys@microsoft.com>

The storage protocol informs the guest of the I/O capabilities of the storage
stack. Retrieve this information and use it in the guest.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
---
 drivers/scsi/storvsc_drv.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index be8f12e..5c13eec 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -377,6 +377,10 @@ struct storvsc_device {
 	unsigned char path_id;
 	unsigned char target_id;
 
+	/*
+	 * Max I/O, the device can support.
+	 */
+	u32   max_transfer_bytes;
 	/* Used for vsc/vsp channel reset process */
 	struct storvsc_cmd_request init_request;
 	struct storvsc_cmd_request reset_request;
@@ -974,6 +978,8 @@ static int storvsc_channel_init(struct hv_device *device)
 		    STORAGE_CHANNEL_SUPPORTS_MULTI_CHANNEL)
 			process_sub_channels = true;
 	}
+	stor_device->max_transfer_bytes =
+		vstor_packet->storage_channel_properties.max_transfer_bytes;
 
 	memset(vstor_packet, 0, sizeof(struct vstor_packet));
 	vstor_packet->operation = VSTOR_OPERATION_END_INITIALIZATION;
-- 
1.7.4.1


WARNING: multiple messages have this Message-ID (diff)
From: "K. Y. Srinivasan" <kys@microsoft.com>
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	devel@linuxdriverproject.org, ohering@suse.com,
	jbottomley@parallels.com, hch@infradead.org,
	linux-scsi@vger.kernel.org, apw@canonical.com,
	vkuznets@redhat.com, jasowang@redhat.com
Subject: [PATCH RESEND 4/7] scsi: storvsc: Retrieve information about the capability of the target
Date: Mon, 23 Mar 2015 14:06:38 -0700	[thread overview]
Message-ID: <1427144801-11920-4-git-send-email-kys@microsoft.com> (raw)
In-Reply-To: <1427144801-11920-1-git-send-email-kys@microsoft.com>

The storage protocol informs the guest of the I/O capabilities of the storage
stack. Retrieve this information and use it in the guest.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
---
 drivers/scsi/storvsc_drv.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index be8f12e..5c13eec 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -377,6 +377,10 @@ struct storvsc_device {
 	unsigned char path_id;
 	unsigned char target_id;
 
+	/*
+	 * Max I/O, the device can support.
+	 */
+	u32   max_transfer_bytes;
 	/* Used for vsc/vsp channel reset process */
 	struct storvsc_cmd_request init_request;
 	struct storvsc_cmd_request reset_request;
@@ -974,6 +978,8 @@ static int storvsc_channel_init(struct hv_device *device)
 		    STORAGE_CHANNEL_SUPPORTS_MULTI_CHANNEL)
 			process_sub_channels = true;
 	}
+	stor_device->max_transfer_bytes =
+		vstor_packet->storage_channel_properties.max_transfer_bytes;
 
 	memset(vstor_packet, 0, sizeof(struct vstor_packet));
 	vstor_packet->operation = VSTOR_OPERATION_END_INITIALIZATION;
-- 
1.7.4.1

  parent reply	other threads:[~2015-03-23 19:51 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-23 21:06 [PATCH 0/7] scsi: storvsc: Miscellaneous enhancements and fixes K. Y. Srinivasan
2015-03-23 21:06 ` [PATCH RESEND 1/7] scsi: storvsc: Increase the ring buffer size K. Y. Srinivasan
2015-03-23 21:06   ` [PATCH RESEND 2/7] scsi: storvsc: Size the queue depth based on the ringbuffer size K. Y. Srinivasan
2015-03-23 21:06     ` K. Y. Srinivasan
2015-03-24  0:23     ` Venkatesh Srinivas
2015-03-24  1:49       ` KY Srinivasan
2015-03-24  1:49         ` KY Srinivasan
2015-03-23 21:06   ` [PATCH RESEND 3/7] scsi: storvsc: Always send on the selected outgoing channel K. Y. Srinivasan
2015-03-23 21:06     ` K. Y. Srinivasan
2015-03-23 21:06   ` K. Y. Srinivasan [this message]
2015-03-23 21:06     ` [PATCH RESEND 4/7] scsi: storvsc: Retrieve information about the capability of the target K. Y. Srinivasan
2015-03-23 21:06   ` [PATCH 5/7] scsi: storvsc: Fix a bug in copy_from_bounce_buffer() K. Y. Srinivasan
2015-03-23 21:06     ` K. Y. Srinivasan
2015-03-23 20:52     ` Long Li
2015-03-23 21:06   ` [PATCH 6/7] scsi: storvsc: Don't assume that the scatterlist is not chained K. Y. Srinivasan
2015-03-23 21:06     ` K. Y. Srinivasan
2015-03-23 20:52     ` Long Li
2015-03-24  8:56     ` Olaf Hering
2015-03-24 16:29       ` KY Srinivasan
2015-03-24 16:29         ` KY Srinivasan
2015-03-23 21:06   ` [PATCH V2 7/7] scsi: storvsc: Set the tablesize based on the information given by the host K. Y. Srinivasan
2015-03-23 21:06     ` K. Y. Srinivasan

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1427144801-11920-4-git-send-email-kys@microsoft.com \
    --to=kys@microsoft.com \
    --cc=apw@canonical.com \
    --cc=devel@linuxdriverproject.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=hch@infradead.org \
    --cc=jasowang@redhat.com \
    --cc=jbottomley@parallels.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-scsi@vger.kernel.org \
    --cc=ohering@suse.com \
    --cc=vkuznets@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.