From: Don Brace <don.brace@microchip.com>
To: <Kevin.Barnett@microchip.com>, <scott.teel@microchip.com>,
<Justin.Lindley@microchip.com>, <scott.benesh@microchip.com>,
<gerry.morong@microchip.com>, <mahesh.rajashekhara@microchip.com>,
<hch@infradead.org>, <jejb@linux.vnet.ibm.com>,
<joseph.szczypek@hpe.com>, <POSWALD@suse.com>
Cc: <linux-scsi@vger.kernel.org>
Subject: [PATCH V3 03/25] smartpqi: refactor build sg list code
Date: Thu, 10 Dec 2020 14:34:37 -0600 [thread overview]
Message-ID: <160763247773.26927.3560789968206627155.stgit@brunhilda> (raw)
In-Reply-To: <160763241302.26927.17487238067261230799.stgit@brunhilda>
* No functional changes.
* Factor out code common to all s/g list building.
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
---
drivers/scsi/smartpqi/smartpqi_init.c | 101 ++++++++++++++-------------------
1 file changed, 42 insertions(+), 59 deletions(-)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 2348b9f24d8c..6bcb037ae9d7 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -4857,16 +4857,52 @@ static inline void pqi_set_sg_descriptor(
put_unaligned_le32(0, &sg_descriptor->flags);
}
+static unsigned int pqi_build_sg_list(struct pqi_sg_descriptor *sg_descriptor,
+ struct scatterlist *sg, int sg_count, struct pqi_io_request *io_request,
+ int max_sg_per_iu, bool *chained)
+{
+ int i;
+ unsigned int num_sg_in_iu;
+
+ *chained = false;
+ i = 0;
+ num_sg_in_iu = 0;
+ max_sg_per_iu--; /* Subtract 1 to leave room for chain marker. */
+
+ while (1) {
+ pqi_set_sg_descriptor(sg_descriptor, sg);
+ if (!*chained)
+ num_sg_in_iu++;
+ i++;
+ if (i == sg_count)
+ break;
+ sg_descriptor++;
+ if (i == max_sg_per_iu) {
+ put_unaligned_le64((u64)io_request->sg_chain_buffer_dma_handle,
+ &sg_descriptor->address);
+ put_unaligned_le32((sg_count - num_sg_in_iu) * sizeof(*sg_descriptor),
+ &sg_descriptor->length);
+ put_unaligned_le32(CISS_SG_CHAIN, &sg_descriptor->flags);
+ *chained = true;
+ num_sg_in_iu++;
+ sg_descriptor = io_request->sg_chain_buffer;
+ }
+ sg = sg_next(sg);
+ }
+
+ put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
+
+ return num_sg_in_iu;
+}
+
static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info,
struct pqi_raid_path_request *request, struct scsi_cmnd *scmd,
struct pqi_io_request *io_request)
{
- int i;
u16 iu_length;
int sg_count;
bool chained;
unsigned int num_sg_in_iu;
- unsigned int max_sg_per_iu;
struct scatterlist *sg;
struct pqi_sg_descriptor *sg_descriptor;
@@ -4882,36 +4918,10 @@ static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info,
sg = scsi_sglist(scmd);
sg_descriptor = request->sg_descriptors;
- max_sg_per_iu = ctrl_info->max_sg_per_iu - 1;
- chained = false;
- num_sg_in_iu = 0;
- i = 0;
- while (1) {
- pqi_set_sg_descriptor(sg_descriptor, sg);
- if (!chained)
- num_sg_in_iu++;
- i++;
- if (i == sg_count)
- break;
- sg_descriptor++;
- if (i == max_sg_per_iu) {
- put_unaligned_le64(
- (u64)io_request->sg_chain_buffer_dma_handle,
- &sg_descriptor->address);
- put_unaligned_le32((sg_count - num_sg_in_iu)
- * sizeof(*sg_descriptor),
- &sg_descriptor->length);
- put_unaligned_le32(CISS_SG_CHAIN,
- &sg_descriptor->flags);
- chained = true;
- num_sg_in_iu++;
- sg_descriptor = io_request->sg_chain_buffer;
- }
- sg = sg_next(sg);
- }
+ num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
+ ctrl_info->max_sg_per_iu, &chained);
- put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
request->partial = chained;
iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
@@ -4925,12 +4935,10 @@ static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info,
struct pqi_aio_path_request *request, struct scsi_cmnd *scmd,
struct pqi_io_request *io_request)
{
- int i;
u16 iu_length;
int sg_count;
bool chained;
unsigned int num_sg_in_iu;
- unsigned int max_sg_per_iu;
struct scatterlist *sg;
struct pqi_sg_descriptor *sg_descriptor;
@@ -4947,35 +4955,10 @@ static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info,
sg = scsi_sglist(scmd);
sg_descriptor = request->sg_descriptors;
- max_sg_per_iu = ctrl_info->max_sg_per_iu - 1;
- chained = false;
- i = 0;
- while (1) {
- pqi_set_sg_descriptor(sg_descriptor, sg);
- if (!chained)
- num_sg_in_iu++;
- i++;
- if (i == sg_count)
- break;
- sg_descriptor++;
- if (i == max_sg_per_iu) {
- put_unaligned_le64(
- (u64)io_request->sg_chain_buffer_dma_handle,
- &sg_descriptor->address);
- put_unaligned_le32((sg_count - num_sg_in_iu)
- * sizeof(*sg_descriptor),
- &sg_descriptor->length);
- put_unaligned_le32(CISS_SG_CHAIN,
- &sg_descriptor->flags);
- chained = true;
- num_sg_in_iu++;
- sg_descriptor = io_request->sg_chain_buffer;
- }
- sg = sg_next(sg);
- }
+ num_sg_in_iu = pqi_build_sg_list(sg_descriptor, sg, sg_count, io_request,
+ ctrl_info->max_sg_per_iu, &chained);
- put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
request->partial = chained;
iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
next prev parent reply other threads:[~2020-12-10 20:39 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-10 20:34 [PATCH V3 00/25] smartpqi updates Don Brace
2020-12-10 20:34 ` [PATCH V3 01/25] smartpqi: add support for product id Don Brace
2021-01-07 16:43 ` Martin Wilck
2020-12-10 20:34 ` [PATCH V3 02/25] smartpqi: refactor aio submission code Don Brace
2021-01-07 16:43 ` Martin Wilck
2020-12-10 20:34 ` Don Brace [this message]
2021-01-07 16:43 ` [PATCH V3 03/25] smartpqi: refactor build sg list code Martin Wilck
2020-12-10 20:34 ` [PATCH V3 04/25] smartpqi: add support for raid5 and raid6 writes Don Brace
2021-01-07 16:44 ` Martin Wilck
2021-01-08 22:56 ` Don.Brace
2021-01-13 10:26 ` Martin Wilck
2020-12-10 20:34 ` [PATCH V3 05/25] smartpqi: add support for raid1 writes Don Brace
2021-01-07 16:44 ` Martin Wilck
2021-01-09 16:56 ` Don.Brace
2020-12-10 20:34 ` [PATCH V3 06/25] smartpqi: add support for BMIC sense feature cmd and feature bits Don Brace
2021-01-07 16:44 ` Martin Wilck
2021-01-11 17:22 ` Don.Brace
2021-01-22 16:45 ` Don.Brace
2021-01-22 19:04 ` Martin Wilck
2020-12-10 20:35 ` [PATCH V3 07/25] smartpqi: update AIO Sub Page 0x02 support Don Brace
2021-01-07 16:44 ` Martin Wilck
2021-01-11 20:53 ` Don.Brace
2020-12-10 20:35 ` [PATCH V3 08/25] smartpqi: add support for long firmware version Don Brace
2021-01-07 16:45 ` Martin Wilck
2021-01-11 22:25 ` Don.Brace
2021-01-22 20:01 ` Don.Brace
2020-12-10 20:35 ` [PATCH V3 09/25] smartpqi: align code with oob driver Don Brace
2021-01-08 0:13 ` Martin Wilck
2020-12-10 20:35 ` [PATCH V3 10/25] smartpqi: add stream detection Don Brace
2021-01-08 0:14 ` Martin Wilck
2021-01-15 21:58 ` Don.Brace
2020-12-10 20:35 ` [PATCH V3 11/25] smartpqi: add host level stream detection enable Don Brace
2021-01-08 0:13 ` Martin Wilck
2021-01-12 20:28 ` Don.Brace
2020-12-10 20:35 ` [PATCH V3 12/25] smartpqi: enable support for NVMe encryption Don Brace
2021-01-08 0:14 ` Martin Wilck
2020-12-10 20:35 ` [PATCH V3 13/25] smartpqi: disable write_same for nvme hba disks Don Brace
2021-01-08 0:13 ` Martin Wilck
2020-12-10 20:35 ` [PATCH V3 14/25] smartpqi: fix driver synchronization issues Don Brace
2021-01-07 23:32 ` Martin Wilck
2021-01-08 4:13 ` Martin K. Petersen
2021-01-15 21:13 ` Don.Brace
2021-01-27 23:01 ` Don.Brace
[not found] ` <c1e6b199f5ccda5ccec5223dfcbd1fba22171c86.camel@suse.com>
2021-02-01 22:47 ` Don.Brace
2020-12-10 20:35 ` [PATCH V3 15/25] smartpqi: fix host qdepth limit Don Brace
2020-12-14 17:54 ` Paul Menzel
2020-12-15 20:23 ` Don.Brace
2021-01-07 23:43 ` Martin Wilck
2021-01-15 21:17 ` Don.Brace
2021-01-19 10:33 ` John Garry
2021-01-19 14:12 ` Martin Wilck
2021-01-19 17:43 ` Paul Menzel
2021-01-20 16:42 ` Donald Buczek
2021-01-20 17:03 ` Don.Brace
2021-01-20 18:35 ` Martin Wilck
2021-02-10 15:27 ` Don.Brace
2021-02-10 15:42 ` John Garry
2021-02-10 16:29 ` Don.Brace
2021-03-29 21:15 ` Paul Menzel
2021-03-29 21:16 ` Paul Menzel
2021-03-30 14:37 ` Donald Buczek
2020-12-10 20:35 ` [PATCH V3 16/25] smartpqi: convert snprintf to scnprintf Don Brace
2021-01-07 23:51 ` Martin Wilck
2020-12-10 20:35 ` [PATCH V3 17/25] smartpqi: change timing of release of QRM memory during OFA Don Brace
2021-01-08 0:14 ` Martin Wilck
2021-01-27 17:46 ` Don.Brace
2020-12-10 20:36 ` [PATCH V3 18/25] smartpqi: return busy indication for IOCTLs when ofa is active Don Brace
2020-12-10 20:36 ` [PATCH V3 19/25] smartpqi: add phy id support for the physical drives Don Brace
2021-01-08 0:03 ` Martin Wilck
2020-12-10 20:36 ` [PATCH V3 20/25] smartpqi: update sas initiator_port_protocols and target_port_protocols Don Brace
2021-01-08 0:12 ` Martin Wilck
2020-12-10 20:36 ` [PATCH V3 21/25] smartpqi: add additional logging for LUN resets Don Brace
2021-01-08 0:27 ` Martin Wilck
2021-01-25 17:09 ` Don.Brace
2020-12-10 20:36 ` [PATCH V3 22/25] smartpqi: update enclosure identifier in sysf Don Brace
2021-01-08 0:30 ` Martin Wilck
2021-01-25 17:13 ` Don.Brace
2021-01-25 19:44 ` Martin Wilck
2021-01-25 20:36 ` Don.Brace
2020-12-10 20:36 ` [PATCH V3 23/25] smartpqi: correct system hangs when resuming from hibernation Don Brace
2021-01-08 0:34 ` Martin Wilck
2021-01-27 17:39 ` Don.Brace
2021-01-27 17:45 ` Martin Wilck
2020-12-10 20:36 ` [PATCH V3 24/25] smartpqi: add new pci ids Don Brace
2021-01-08 0:35 ` Martin Wilck
2020-12-10 20:36 ` [PATCH V3 25/25] smartpqi: update version to 2.1.6-005 Don Brace
2020-12-21 14:31 ` [PATCH V3 00/25] smartpqi updates Donald Buczek
[not found] ` <SN6PR11MB2848D8C9DF9856A2B7AA69ACE1C00@SN6PR11MB2848.namprd11.prod.outlook.com>
2020-12-22 13:13 ` Donald Buczek
2020-12-28 15:57 ` Don.Brace
2020-12-28 19:25 ` Don.Brace
2020-12-28 22:36 ` Donald Buczek
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=160763247773.26927.3560789968206627155.stgit@brunhilda \
--to=don.brace@microchip.com \
--cc=Justin.Lindley@microchip.com \
--cc=Kevin.Barnett@microchip.com \
--cc=POSWALD@suse.com \
--cc=gerry.morong@microchip.com \
--cc=hch@infradead.org \
--cc=jejb@linux.vnet.ibm.com \
--cc=joseph.szczypek@hpe.com \
--cc=linux-scsi@vger.kernel.org \
--cc=mahesh.rajashekhara@microchip.com \
--cc=scott.benesh@microchip.com \
--cc=scott.teel@microchip.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).