From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: Michael Schmitz <schmitzmic@gmail.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Christoph Hellwig <hch@lst.de>,
linux-ide@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com
Subject: [PATCH v2 25/26] ata: move ata_eh_analyze_ncq_error() & co. to libata-sata.c
Date: Fri, 7 Feb 2020 15:27:33 +0100 [thread overview]
Message-ID: <20200207142734.8431-26-b.zolnierkie@samsung.com> (raw)
In-Reply-To: <20200207142734.8431-1-b.zolnierkie@samsung.com>
* move ata_eh_analyze_ncq_error() and ata_eh_read_log_10h() to
libata-sata.c
* add static inline for ata_eh_analyze_ncq_error() for
CONFIG_SATA_HOST=n case (link->sactive is non-zero only if
NCQ commands are actually queued so empty function body is
sufficient)
Code size savings on m68k arch using (modified) atari_defconfig:
text data bss dec hex filename
before:
16164 18 0 16182 3f36 drivers/ata/libata-eh.o
after:
15446 18 0 15464 3c68 drivers/ata/libata-eh.o
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
drivers/ata/libata-eh.c | 131 --------------------------------------
drivers/ata/libata-sata.c | 131 ++++++++++++++++++++++++++++++++++++++
include/linux/libata.h | 3 +-
3 files changed, 133 insertions(+), 132 deletions(-)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index ef4d606cd8c6..474c6c34fe02 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1351,62 +1351,6 @@ static const char *ata_err_string(unsigned int err_mask)
return "unknown error";
}
-/**
- * ata_eh_read_log_10h - Read log page 10h for NCQ error details
- * @dev: Device to read log page 10h from
- * @tag: Resulting tag of the failed command
- * @tf: Resulting taskfile registers of the failed command
- *
- * Read log page 10h to obtain NCQ error details and clear error
- * condition.
- *
- * LOCKING:
- * Kernel thread context (may sleep).
- *
- * RETURNS:
- * 0 on success, -errno otherwise.
- */
-static int ata_eh_read_log_10h(struct ata_device *dev,
- int *tag, struct ata_taskfile *tf)
-{
- u8 *buf = dev->link->ap->sector_buf;
- unsigned int err_mask;
- u8 csum;
- int i;
-
- err_mask = ata_read_log_page(dev, ATA_LOG_SATA_NCQ, 0, buf, 1);
- if (err_mask)
- return -EIO;
-
- csum = 0;
- for (i = 0; i < ATA_SECT_SIZE; i++)
- csum += buf[i];
- if (csum)
- ata_dev_warn(dev, "invalid checksum 0x%x on log page 10h\n",
- csum);
-
- if (buf[0] & 0x80)
- return -ENOENT;
-
- *tag = buf[0] & 0x1f;
-
- tf->command = buf[2];
- tf->feature = buf[3];
- tf->lbal = buf[4];
- tf->lbam = buf[5];
- tf->lbah = buf[6];
- tf->device = buf[7];
- tf->hob_lbal = buf[8];
- tf->hob_lbam = buf[9];
- tf->hob_lbah = buf[10];
- tf->nsect = buf[12];
- tf->hob_nsect = buf[13];
- if (dev->class == ATA_DEV_ZAC && ata_id_has_ncq_autosense(dev->id))
- tf->auxiliary = buf[14] << 16 | buf[15] << 8 | buf[16];
-
- return 0;
-}
-
/**
* atapi_eh_tur - perform ATAPI TEST_UNIT_READY
* @dev: target ATAPI device
@@ -1590,81 +1534,6 @@ static void ata_eh_analyze_serror(struct ata_link *link)
ehc->i.action |= action;
}
-/**
- * ata_eh_analyze_ncq_error - analyze NCQ error
- * @link: ATA link to analyze NCQ error for
- *
- * Read log page 10h, determine the offending qc and acquire
- * error status TF. For NCQ device errors, all LLDDs have to do
- * is setting AC_ERR_DEV in ehi->err_mask. This function takes
- * care of the rest.
- *
- * LOCKING:
- * Kernel thread context (may sleep).
- */
-void ata_eh_analyze_ncq_error(struct ata_link *link)
-{
- struct ata_port *ap = link->ap;
- struct ata_eh_context *ehc = &link->eh_context;
- struct ata_device *dev = link->device;
- struct ata_queued_cmd *qc;
- struct ata_taskfile tf;
- int tag, rc;
-
- /* if frozen, we can't do much */
- if (ap->pflags & ATA_PFLAG_FROZEN)
- return;
-
- /* is it NCQ device error? */
- if (!link->sactive || !(ehc->i.err_mask & AC_ERR_DEV))
- return;
-
- /* has LLDD analyzed already? */
- ata_qc_for_each_raw(ap, qc, tag) {
- if (!(qc->flags & ATA_QCFLAG_FAILED))
- continue;
-
- if (qc->err_mask)
- return;
- }
-
- /* okay, this error is ours */
- memset(&tf, 0, sizeof(tf));
- rc = ata_eh_read_log_10h(dev, &tag, &tf);
- if (rc) {
- ata_link_err(link, "failed to read log page 10h (errno=%d)\n",
- rc);
- return;
- }
-
- if (!(link->sactive & (1 << tag))) {
- ata_link_err(link, "log page 10h reported inactive tag %d\n",
- tag);
- return;
- }
-
- /* we've got the perpetrator, condemn it */
- qc = __ata_qc_from_tag(ap, tag);
- memcpy(&qc->result_tf, &tf, sizeof(tf));
- qc->result_tf.flags = ATA_TFLAG_ISADDR | ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
- qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ;
- if (dev->class == ATA_DEV_ZAC &&
- ((qc->result_tf.command & ATA_SENSE) || qc->result_tf.auxiliary)) {
- char sense_key, asc, ascq;
-
- sense_key = (qc->result_tf.auxiliary >> 16) & 0xff;
- asc = (qc->result_tf.auxiliary >> 8) & 0xff;
- ascq = qc->result_tf.auxiliary & 0xff;
- ata_scsi_set_sense(dev, qc->scsicmd, sense_key, asc, ascq);
- ata_scsi_set_sense_information(dev, qc->scsicmd,
- &qc->result_tf);
- qc->flags |= ATA_QCFLAG_SENSE_VALID;
- }
-
- ehc->i.err_mask &= ~AC_ERR_DEV;
-}
-EXPORT_SYMBOL_GPL(ata_eh_analyze_ncq_error);
-
/**
* ata_eh_analyze_tf - analyze taskfile of a failed qc
* @qc: qc to analyze
diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c
index 008468e516cd..c16423e44525 100644
--- a/drivers/ata/libata-sata.c
+++ b/drivers/ata/libata-sata.c
@@ -1350,3 +1350,134 @@ int sata_async_notification(struct ata_port *ap)
}
}
EXPORT_SYMBOL_GPL(sata_async_notification);
+
+/**
+ * ata_eh_read_log_10h - Read log page 10h for NCQ error details
+ * @dev: Device to read log page 10h from
+ * @tag: Resulting tag of the failed command
+ * @tf: Resulting taskfile registers of the failed command
+ *
+ * Read log page 10h to obtain NCQ error details and clear error
+ * condition.
+ *
+ * LOCKING:
+ * Kernel thread context (may sleep).
+ *
+ * RETURNS:
+ * 0 on success, -errno otherwise.
+ */
+static int ata_eh_read_log_10h(struct ata_device *dev,
+ int *tag, struct ata_taskfile *tf)
+{
+ u8 *buf = dev->link->ap->sector_buf;
+ unsigned int err_mask;
+ u8 csum;
+ int i;
+
+ err_mask = ata_read_log_page(dev, ATA_LOG_SATA_NCQ, 0, buf, 1);
+ if (err_mask)
+ return -EIO;
+
+ csum = 0;
+ for (i = 0; i < ATA_SECT_SIZE; i++)
+ csum += buf[i];
+ if (csum)
+ ata_dev_warn(dev, "invalid checksum 0x%x on log page 10h\n",
+ csum);
+
+ if (buf[0] & 0x80)
+ return -ENOENT;
+
+ *tag = buf[0] & 0x1f;
+
+ tf->command = buf[2];
+ tf->feature = buf[3];
+ tf->lbal = buf[4];
+ tf->lbam = buf[5];
+ tf->lbah = buf[6];
+ tf->device = buf[7];
+ tf->hob_lbal = buf[8];
+ tf->hob_lbam = buf[9];
+ tf->hob_lbah = buf[10];
+ tf->nsect = buf[12];
+ tf->hob_nsect = buf[13];
+ if (dev->class == ATA_DEV_ZAC && ata_id_has_ncq_autosense(dev->id))
+ tf->auxiliary = buf[14] << 16 | buf[15] << 8 | buf[16];
+
+ return 0;
+}
+
+/**
+ * ata_eh_analyze_ncq_error - analyze NCQ error
+ * @link: ATA link to analyze NCQ error for
+ *
+ * Read log page 10h, determine the offending qc and acquire
+ * error status TF. For NCQ device errors, all LLDDs have to do
+ * is setting AC_ERR_DEV in ehi->err_mask. This function takes
+ * care of the rest.
+ *
+ * LOCKING:
+ * Kernel thread context (may sleep).
+ */
+void ata_eh_analyze_ncq_error(struct ata_link *link)
+{
+ struct ata_port *ap = link->ap;
+ struct ata_eh_context *ehc = &link->eh_context;
+ struct ata_device *dev = link->device;
+ struct ata_queued_cmd *qc;
+ struct ata_taskfile tf;
+ int tag, rc;
+
+ /* if frozen, we can't do much */
+ if (ap->pflags & ATA_PFLAG_FROZEN)
+ return;
+
+ /* is it NCQ device error? */
+ if (!link->sactive || !(ehc->i.err_mask & AC_ERR_DEV))
+ return;
+
+ /* has LLDD analyzed already? */
+ ata_qc_for_each_raw(ap, qc, tag) {
+ if (!(qc->flags & ATA_QCFLAG_FAILED))
+ continue;
+
+ if (qc->err_mask)
+ return;
+ }
+
+ /* okay, this error is ours */
+ memset(&tf, 0, sizeof(tf));
+ rc = ata_eh_read_log_10h(dev, &tag, &tf);
+ if (rc) {
+ ata_link_err(link, "failed to read log page 10h (errno=%d)\n",
+ rc);
+ return;
+ }
+
+ if (!(link->sactive & (1 << tag))) {
+ ata_link_err(link, "log page 10h reported inactive tag %d\n",
+ tag);
+ return;
+ }
+
+ /* we've got the perpetrator, condemn it */
+ qc = __ata_qc_from_tag(ap, tag);
+ memcpy(&qc->result_tf, &tf, sizeof(tf));
+ qc->result_tf.flags = ATA_TFLAG_ISADDR | ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
+ qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ;
+ if (dev->class == ATA_DEV_ZAC &&
+ ((qc->result_tf.command & ATA_SENSE) || qc->result_tf.auxiliary)) {
+ char sense_key, asc, ascq;
+
+ sense_key = (qc->result_tf.auxiliary >> 16) & 0xff;
+ asc = (qc->result_tf.auxiliary >> 8) & 0xff;
+ ascq = qc->result_tf.auxiliary & 0xff;
+ ata_scsi_set_sense(dev, qc->scsicmd, sense_key, asc, ascq);
+ ata_scsi_set_sense_information(dev, qc->scsicmd,
+ &qc->result_tf);
+ qc->flags |= ATA_QCFLAG_SENSE_VALID;
+ }
+
+ ehc->i.err_mask &= ~AC_ERR_DEV;
+}
+EXPORT_SYMBOL_GPL(ata_eh_analyze_ncq_error);
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 24de4b66ce36..4feeb12f58ea 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1183,6 +1183,7 @@ extern int sata_link_hardreset(struct ata_link *link,
bool *online, int (*check_ready)(struct ata_link *));
extern int sata_link_resume(struct ata_link *link, const unsigned long *params,
unsigned long deadline);
+extern void ata_eh_analyze_ncq_error(struct ata_link *link);
#else
static inline const unsigned long *
sata_ehc_deb_timing(struct ata_eh_context *ehc)
@@ -1219,6 +1220,7 @@ static inline int sata_link_resume(struct ata_link *link,
{
return -EOPNOTSUPP;
}
+static inline void ata_eh_analyze_ncq_error(struct ata_link *link) { }
#endif
extern int sata_link_debounce(struct ata_link *link,
const unsigned long *params, unsigned long deadline);
@@ -1340,7 +1342,6 @@ extern void ata_eh_thaw_port(struct ata_port *ap);
extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
-extern void ata_eh_analyze_ncq_error(struct ata_link *link);
extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
--
2.24.1
next prev parent reply other threads:[~2020-02-07 14:28 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200207142751eucas1p2499d9a7ebbca93fff43c47629ba8b6ce@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 00/26] ata: optimize core code size on PATA only setups Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142751eucas1p19960870c4d79815b9e81747399ef77a2@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 01/26] ata: remove stale maintainership information from core code Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142752eucas1p14ad96c1adf7508226cfdfa583bb442aa@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 02/26] ata: expose ncq_enable_prio sysfs attribute only on NCQ capable hosts Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142752eucas1p27f8e7638e088b45de413dbaf83ce5471@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 03/26] ata: make SATA_PMP option selectable only if any SATA host driver is enabled Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142753eucas1p2c4310ddbb52c5eed02974fc2738c8a58@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 04/26] sata_promise: use ata_cable_sata() Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142753eucas1p14a54d1ac2335ec3e9ad66eb6b299fd76@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 05/26] ata: simplify ata_scsiop_inq_89() Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142754eucas1p1e7f756105a9187d394ad70d5d91aaa3b@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 06/26] ata: use COMMAND_LINE_SIZE for ata_force_param_buf[] size Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142754eucas1p14ee8569d843c7aa03f8a3cfb7dd50056@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 07/26] ata: optimize struct ata_force_param size Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142755eucas1p2a448f8578421c0ac13ff5c47efa8a83f@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 08/26] ata: move EXPORT_SYMBOL_GPL()s close to exported code Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142755eucas1p2a47ef991c23f3b05baf24e00afb94c92@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 09/26] ata: remove EXPORT_SYMBOL_GPL()s not used by modules Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142756eucas1p14021b9f9dac98434feeb5ba094b8a8c3@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 10/26] ata: fix CodingStyle issues in PATA timings code Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142756eucas1p1f299ae31569762e100756213d11ec87c@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 11/26] ata: separate PATA timings code from libata-core.c Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142757eucas1p2a6a0f4dfb8cee5313e4a8b4b6214858f@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 12/26] ata: add CONFIG_SATA_HOST=n version of ata_ncq_enabled() Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142757eucas1p29eda5a5ab29dc59ea88eb2b9770bc71e@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 13/26] ata: let compiler optimize out ata_dev_config_ncq() on non-SATA hosts Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142758eucas1p2940a7416adac1db3cf63e284ebc23d03@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 14/26] ata: let compiler optimize out ata_eh_set_lpm() " Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142758eucas1p1796149e416642f812735bd0e537ddb42@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 15/26] ata: start separating SATA specific code from libata-core.c Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142759eucas1p1205ee995145f1a1e4990a4bdbf14b6d5@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 16/26] ata: move sata_scr_*() to libata-sata.c Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142759eucas1p1121be90ddd41b97b9112b8cd599d0243@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 17/26] ata: move *sata_set_spd*() " Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142800eucas1p2714a5e9b2ff1a6f7f714f153846d8b51@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 18/26] ata: move sata_link_{debounce,resume}() " Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142800eucas1p197819409e445b948ba8cacc8acdbf5f9@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 19/26] ata: move sata_link_hardreset() " Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142801eucas1p27ac052c180ec3adab13543d1c0817a05@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 20/26] ata: move ata_qc_complete_multiple() " Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142801eucas1p1b7ef2c914af9abfb409917facae0ceb4@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 21/26] ata: move sata_deb_timing_*() " Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142802eucas1p2ed590d748e1c787c9c7cebdc27f0c49c@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 22/26] ata: start separating SATA specific code from libata-scsi.c Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142802eucas1p29a42ddad0e551a2f2f4e20626d929261@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 23/26] ata: move ata_sas_*() to libata-sata.c Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142803eucas1p2625a00402342b1279344ec2ab6d4db5b@eucas1p2.samsung.com>
2020-02-07 14:27 ` [PATCH v2 24/26] ata: start separating SATA specific code from libata-eh.c Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200207142803eucas1p1a2ee17261878ae26f9b388f693d6e56a@eucas1p1.samsung.com>
2020-02-07 14:27 ` Bartlomiej Zolnierkiewicz [this message]
[not found] ` <CGME20200207142804eucas1p109106a07c632440423b850168f26f7d8@eucas1p1.samsung.com>
2020-02-07 14:27 ` [PATCH v2 26/26] ata: make "libata.force" kernel parameter optional Bartlomiej Zolnierkiewicz
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=20200207142734.8431-26-b.zolnierkie@samsung.com \
--to=b.zolnierkie@samsung.com \
--cc=axboe@kernel.dk \
--cc=geert@linux-m68k.org \
--cc=hch@lst.de \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-m68k@lists.linux-m68k.org \
--cc=schmitzmic@gmail.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).