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Groups > linux.kernel > #1284724
| From | Finn Thain <fthain@telegraphics.com.au> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 60/72] ncr5380: Implement new eh_abort_handler |
| Date | 2015-12-06 04:50 +0100 |
| Message-ID | <qCyuK-1Aw-33@gated-at.bofh.it> (permalink) |
| References | <qCyuJ-1Aw-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Introduce a new eh_abort_handler implementation. This one attempts to
follow all of the rules relating to EH handlers. There is still a known
bug: during selection, a command becomes invisible to the EH handlers
because it only appears in a pointer on the stack of a different thread.
This bug is addressed in a subsequent patch.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
---
drivers/scsi/NCR5380.c | 155 ++++++++++++++++++++++++++++++++++++++----
drivers/scsi/atari_NCR5380.c | 157 ++++++++++++++++++++++++++++++++++++++-----
2 files changed, 282 insertions(+), 30 deletions(-)
Index: linux/drivers/scsi/atari_NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/atari_NCR5380.c 2015-12-06 12:31:02.000000000 +1100
+++ linux/drivers/scsi/atari_NCR5380.c 2015-12-06 12:31:05.000000000 +1100
@@ -2475,41 +2475,168 @@ static void NCR5380_reselect(struct Scsi
}
-/*
- * Function : int NCR5380_abort (struct scsi_cmnd *cmd)
+/**
+ * list_find_cmd - test for presence of a command in a linked list
+ * @haystack: list of commands
+ * @needle: command to search for
+ */
+
+static bool list_find_cmd(struct list_head *haystack,
+ struct scsi_cmnd *needle)
+{
+ struct NCR5380_cmd *ncmd;
+
+ list_for_each_entry(ncmd, haystack, list)
+ if (NCR5380_to_scmd(ncmd) == needle)
+ return true;
+ return false;
+}
+
+/**
+ * list_remove_cmd - remove a command from linked list
+ * @haystack: list of commands
+ * @needle: command to remove
+ */
+
+static bool list_del_cmd(struct list_head *haystack,
+ struct scsi_cmnd *needle)
+{
+ if (list_find_cmd(haystack, needle)) {
+ struct NCR5380_cmd *ncmd = scsi_cmd_priv(needle);
+
+ list_del(&ncmd->list);
+ return true;
+ }
+ return false;
+}
+
+/**
+ * NCR5380_abort - scsi host eh_abort_handler() method
+ * @cmd: the command to be aborted
*
- * Purpose : abort a command
+ * Try to abort a given command by removing it from queues and/or sending
+ * the target an abort message. This may not succeed in causing a target
+ * to abort the command. Nonetheless, the low-level driver must forget about
+ * the command because the mid-layer reclaims it and it may be re-issued.
*
- * Inputs : cmd - the scsi_cmnd to abort, code - code to set the
- * host byte of the result field to, if zero DID_ABORTED is
- * used.
+ * The normal path taken by a command is as follows. For EH we trace this
+ * same path to locate and abort the command.
*
- * Returns : SUCCESS - success, FAILED on failure.
+ * unissued -> selecting -> [unissued -> selecting ->]... connected ->
+ * [disconnected -> connected ->]...
+ * [autosense -> connected ->] done
*
- * XXX - there is no way to abort the command that is currently
- * connected, you have to wait for it to complete. If this is
- * a problem, we could implement longjmp() / setjmp(), setjmp()
- * called where the loop started in NCR5380_main().
+ * If cmd is unissued then just remove it.
+ * If cmd is disconnected, try to select the target.
+ * If cmd is connected, try to send an abort message.
+ * If cmd is waiting for autosense, give it a chance to complete but check
+ * that it isn't left connected.
+ * If cmd was not found at all then presumably it has already been completed,
+ * in which case return SUCCESS to try to avoid further EH measures.
+ * If the command has not completed yet, we must not fail to find it.
*/
-static
-int NCR5380_abort(struct scsi_cmnd *cmd)
+static int NCR5380_abort(struct scsi_cmnd *cmd)
{
struct Scsi_Host *instance = cmd->device->host;
struct NCR5380_hostdata *hostdata = shost_priv(instance);
unsigned long flags;
+ int result = SUCCESS;
spin_lock_irqsave(&hostdata->lock, flags);
#if (NDEBUG & NDEBUG_ANY)
- scmd_printk(KERN_INFO, cmd, "aborting command\n");
+ scmd_printk(KERN_INFO, cmd, __func__);
#endif
NCR5380_dprint(NDEBUG_ANY, instance);
NCR5380_dprint_phase(NDEBUG_ANY, instance);
+ if (list_del_cmd(&hostdata->unissued, cmd)) {
+ dsprintk(NDEBUG_ABORT, instance,
+ "abort: removed %p from issue queue\n", cmd);
+ cmd->result = DID_ABORT << 16;
+ cmd->scsi_done(cmd); /* No tag or busy flag to worry about */
+ }
+
+ if (list_del_cmd(&hostdata->disconnected, cmd)) {
+ dsprintk(NDEBUG_ABORT, instance,
+ "abort: removed %p from disconnected list\n", cmd);
+ cmd->result = DID_ERROR << 16;
+ if (!hostdata->connected)
+ NCR5380_select(instance, cmd);
+ if (hostdata->connected != cmd) {
+ complete_cmd(instance, cmd);
+ result = FAILED;
+ goto out;
+ }
+ }
+
+ if (hostdata->connected == cmd) {
+ dsprintk(NDEBUG_ABORT, instance, "abort: cmd %p is connected\n", cmd);
+ hostdata->connected = NULL;
+ if (do_abort(instance)) {
+ set_host_byte(cmd, DID_ERROR);
+ complete_cmd(instance, cmd);
+ result = FAILED;
+ goto out;
+ }
+ set_host_byte(cmd, DID_ABORT);
+#ifdef REAL_DMA
+ hostdata->dma_len = 0;
+#endif
+ if (cmd->cmnd[0] == REQUEST_SENSE)
+ complete_cmd(instance, cmd);
+ else {
+ struct NCR5380_cmd *ncmd = scsi_cmd_priv(cmd);
+
+ /* Perform autosense for this command */
+ list_add(&ncmd->list, &hostdata->autosense);
+ }
+ }
+
+ if (list_find_cmd(&hostdata->autosense, cmd)) {
+ dsprintk(NDEBUG_ABORT, instance,
+ "abort: found %p on sense queue\n", cmd);
+ spin_unlock_irqrestore(&hostdata->lock, flags);
+ queue_work(hostdata->work_q, &hostdata->main_task);
+ msleep(1000);
+ spin_lock_irqsave(&hostdata->lock, flags);
+ if (list_del_cmd(&hostdata->autosense, cmd)) {
+ dsprintk(NDEBUG_ABORT, instance,
+ "abort: removed %p from sense queue\n", cmd);
+ set_host_byte(cmd, DID_ABORT);
+ complete_cmd(instance, cmd);
+ goto out;
+ }
+ }
+
+ if (hostdata->connected == cmd) {
+ dsprintk(NDEBUG_ABORT, instance, "abort: cmd %p is connected\n", cmd);
+ hostdata->connected = NULL;
+ if (do_abort(instance)) {
+ set_host_byte(cmd, DID_ERROR);
+ complete_cmd(instance, cmd);
+ result = FAILED;
+ goto out;
+ }
+ set_host_byte(cmd, DID_ABORT);
+#ifdef REAL_DMA
+ hostdata->dma_len = 0;
+#endif
+ complete_cmd(instance, cmd);
+ }
+
+out:
+ if (result == FAILED)
+ dsprintk(NDEBUG_ABORT, instance, "abort: failed to abort %p\n", cmd);
+ else
+ dsprintk(NDEBUG_ABORT, instance, "abort: successfully aborted %p\n", cmd);
+
+ queue_work(hostdata->work_q, &hostdata->main_task);
+ maybe_release_dma_irq(instance);
spin_unlock_irqrestore(&hostdata->lock, flags);
- return FAILED;
+ return result;
}
Index: linux/drivers/scsi/NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/NCR5380.c 2015-12-06 12:31:02.000000000 +1100
+++ linux/drivers/scsi/NCR5380.c 2015-12-06 12:31:05.000000000 +1100
@@ -2264,23 +2264,65 @@ static void NCR5380_dma_complete(NCR5380
}
#endif /* def REAL_DMA */
-/*
- * Function : int NCR5380_abort (struct scsi_cmnd *cmd)
- *
- * Purpose : abort a command
+/**
+ * list_find_cmd - test for presence of a command in a linked list
+ * @haystack: list of commands
+ * @needle: command to search for
+ */
+
+static bool list_find_cmd(struct list_head *haystack,
+ struct scsi_cmnd *needle)
+{
+ struct NCR5380_cmd *ncmd;
+
+ list_for_each_entry(ncmd, haystack, list)
+ if (NCR5380_to_scmd(ncmd) == needle)
+ return true;
+ return false;
+}
+
+/**
+ * list_remove_cmd - remove a command from linked list
+ * @haystack: list of commands
+ * @needle: command to remove
+ */
+
+static bool list_del_cmd(struct list_head *haystack,
+ struct scsi_cmnd *needle)
+{
+ if (list_find_cmd(haystack, needle)) {
+ struct NCR5380_cmd *ncmd = scsi_cmd_priv(needle);
+
+ list_del(&ncmd->list);
+ return true;
+ }
+ return false;
+}
+
+/**
+ * NCR5380_abort - scsi host eh_abort_handler() method
+ * @cmd: the command to be aborted
*
- * Inputs : cmd - the scsi_cmnd to abort, code - code to set the
- * host byte of the result field to, if zero DID_ABORTED is
- * used.
+ * Try to abort a given command by removing it from queues and/or sending
+ * the target an abort message. This may not succeed in causing a target
+ * to abort the command. Nonetheless, the low-level driver must forget about
+ * the command because the mid-layer reclaims it and it may be re-issued.
*
- * Returns : SUCCESS - success, FAILED on failure.
+ * The normal path taken by a command is as follows. For EH we trace this
+ * same path to locate and abort the command.
*
- * XXX - there is no way to abort the command that is currently
- * connected, you have to wait for it to complete. If this is
- * a problem, we could implement longjmp() / setjmp(), setjmp()
- * called where the loop started in NCR5380_main().
+ * unissued -> selecting -> [unissued -> selecting ->]... connected ->
+ * [disconnected -> connected ->]...
+ * [autosense -> connected ->] done
*
- * Locks: host lock taken by caller
+ * If cmd is unissued then just remove it.
+ * If cmd is disconnected, try to select the target.
+ * If cmd is connected, try to send an abort message.
+ * If cmd is waiting for autosense, give it a chance to complete but check
+ * that it isn't left connected.
+ * If cmd was not found at all then presumably it has already been completed,
+ * in which case return SUCCESS to try to avoid further EH measures.
+ * If the command has not completed yet, we must not fail to find it.
*/
static int NCR5380_abort(struct scsi_cmnd *cmd)
@@ -2288,18 +2330,101 @@ static int NCR5380_abort(struct scsi_cmn
struct Scsi_Host *instance = cmd->device->host;
struct NCR5380_hostdata *hostdata = shost_priv(instance);
unsigned long flags;
+ int result = SUCCESS;
spin_lock_irqsave(&hostdata->lock, flags);
#if (NDEBUG & NDEBUG_ANY)
- scmd_printk(KERN_INFO, cmd, "aborting command\n");
+ scmd_printk(KERN_INFO, cmd, __func__);
#endif
NCR5380_dprint(NDEBUG_ANY, instance);
NCR5380_dprint_phase(NDEBUG_ANY, instance);
+ if (list_del_cmd(&hostdata->unissued, cmd)) {
+ dsprintk(NDEBUG_ABORT, instance,
+ "abort: removed %p from issue queue\n", cmd);
+ cmd->result = DID_ABORT << 16;
+ cmd->scsi_done(cmd); /* No tag or busy flag to worry about */
+ }
+
+ if (list_del_cmd(&hostdata->disconnected, cmd)) {
+ dsprintk(NDEBUG_ABORT, instance,
+ "abort: removed %p from disconnected list\n", cmd);
+ cmd->result = DID_ERROR << 16;
+ if (!hostdata->connected)
+ NCR5380_select(instance, cmd);
+ if (hostdata->connected != cmd) {
+ complete_cmd(instance, cmd);
+ result = FAILED;
+ goto out;
+ }
+ }
+
+ if (hostdata->connected == cmd) {
+ dsprintk(NDEBUG_ABORT, instance, "abort: cmd %p is connected\n", cmd);
+ hostdata->connected = NULL;
+ if (do_abort(instance)) {
+ set_host_byte(cmd, DID_ERROR);
+ complete_cmd(instance, cmd);
+ result = FAILED;
+ goto out;
+ }
+ set_host_byte(cmd, DID_ABORT);
+#ifdef REAL_DMA
+ hostdata->dma_len = 0;
+#endif
+ if (cmd->cmnd[0] == REQUEST_SENSE)
+ complete_cmd(instance, cmd);
+ else {
+ struct NCR5380_cmd *ncmd = scsi_cmd_priv(cmd);
+
+ /* Perform autosense for this command */
+ list_add(&ncmd->list, &hostdata->autosense);
+ }
+ }
+
+ if (list_find_cmd(&hostdata->autosense, cmd)) {
+ dsprintk(NDEBUG_ABORT, instance,
+ "abort: found %p on sense queue\n", cmd);
+ spin_unlock_irqrestore(&hostdata->lock, flags);
+ queue_work(hostdata->work_q, &hostdata->main_task);
+ msleep(1000);
+ spin_lock_irqsave(&hostdata->lock, flags);
+ if (list_del_cmd(&hostdata->autosense, cmd)) {
+ dsprintk(NDEBUG_ABORT, instance,
+ "abort: removed %p from sense queue\n", cmd);
+ set_host_byte(cmd, DID_ABORT);
+ complete_cmd(instance, cmd);
+ goto out;
+ }
+ }
+
+ if (hostdata->connected == cmd) {
+ dsprintk(NDEBUG_ABORT, instance, "abort: cmd %p is connected\n", cmd);
+ hostdata->connected = NULL;
+ if (do_abort(instance)) {
+ set_host_byte(cmd, DID_ERROR);
+ complete_cmd(instance, cmd);
+ result = FAILED;
+ goto out;
+ }
+ set_host_byte(cmd, DID_ABORT);
+#ifdef REAL_DMA
+ hostdata->dma_len = 0;
+#endif
+ complete_cmd(instance, cmd);
+ }
+
+out:
+ if (result == FAILED)
+ dsprintk(NDEBUG_ABORT, instance, "abort: failed to abort %p\n", cmd);
+ else
+ dsprintk(NDEBUG_ABORT, instance, "abort: successfully aborted %p\n", cmd);
+
+ queue_work(hostdata->work_q, &hostdata->main_task);
spin_unlock_irqrestore(&hostdata->lock, flags);
- return FAILED;
+ return result;
}
--
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[PATCH v2 00/72] More fixes, cleanup and modernization for NCR5380 drivers Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 66/72] ncr5380: Fix soft lockups Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 44/72] ncr5380: Fix off-by-one bug in extended_msg[] bounds check Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 57/72] ncr5380: Use standard list data structure Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 69/72] ncr5380: Merge changes from atari_NCR5380.c Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 72/72] ncr5380: Fix pseudo DMA transfers on 53C400 Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 58/72] ncr5380: Refactor command completion Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 67/72] ncr5380: Cleanup comments Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 59/72] ncr5380: Fix autosense bugs Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 62/72] ncr5380: Implement new eh_bus_reset_handler Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 64/72] atari_NCR5380: Eliminate HOSTNO macro Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 63/72] atari_NCR5380: Remove HOSTNO macro from printk() and seq_printf() calls Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 60/72] ncr5380: Implement new eh_abort_handler Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 71/72] ncr5380: Cleanup whitespace and parentheses Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 65/72] atari_scsi, sun3_scsi: Remove global Scsi_Host pointer Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 70/72] atari_NCR5380: Merge changes from NCR5380.c Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 61/72] ncr5380: Fix EH during arbitration and selection Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
[PATCH v2 08/72] ncr5380: Move NCR53C400-specific code Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 48/72] atari_NCR5380: Fix queue_size limit Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 47/72] ncr5380: Fix and cleanup scsi_host_template initializers Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 55/72] ncr5380: Remove LIST and REMOVE macros Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 32/72] ncr5380: Fix bus phase in do_abort() Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 31/72] ncr5380: Fix !REQ timeout in do_abort() Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 30/72] ncr5380: Add missing break after case MESSAGE_REJECT Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 33/72] atari_NCR5380: Set do_abort() timeouts Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 41/72] ncr5380: Replace redundant flags with FLAG_NO_DMA_FIXUP Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 54/72] ncr5380: Use dsprintk() for queue debugging Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 38/72] ncr5380: Remove UNSAFE macro Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 53/72] ncr5380: Use shost_priv helper Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 34/72] atari_NCR5380: Use arbitration timeout Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 39/72] ncr5380: Standardize interrupt handling Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 37/72] ncr5380: Standardize work queueing algorithm Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 51/72] ncr5380: Remove command list debug code Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 06/72] ncr5380: Remove NCR5380_instance_name macro Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 52/72] ncr5380: Remove H_NO macro and introduce dsprintk Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 43/72] ncr5380: Standardize reselection handling Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 42/72] ncr5380: Replace READ_OVERRUNS macro with FLAG_NO_DMA_FIXUPS Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 45/72] ncr5380: Cleanup #include directives Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 46/72] ncr5380: Fix NDEBUG_NO_DATAOUT flag Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 49/72] ncr5380: Remove redundant ICR_ARBITRATION_LOST test and eliminate FLAG_DTC3181E Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 26/72] ncr5380: Fix NCR5380_transfer_pio() result Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 36/72] ncr5380: Use work_struct instead of delayed_work Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 35/72] ncr5380: Dont wait for BUS FREE after disconnect Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 28/72] ncr5380: Drop DEF_SCSI_QCMD macro Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 56/72] ncr5380: Remove redundant volatile qualifiers Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 29/72] ncr5380: Remove references to linked commands Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 40/72] ncr5380: Introduce NCR5380_poll_politely2 Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 25/72] ncr5380: Rework disconnect versus poll logic Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 50/72] ncr5380: Change instance->host_lock to hostdata->lock Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:00 +0100
[PATCH v2 14/72] ncr5380: Use return instead of goto in NCR5380_select() Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 01/72] atari_scsi: Fix SCSI host ID setting Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 20/72] ncr5380: Introduce unbound workqueue Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 19/72] ncr5380: Cleanup bogus {request,release}_region() calls Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 07/72] ncr5380: Split NCR5380_init() into two functions Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 21/72] ncr5380: Sleep when polling, if possible Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
Re: [PATCH v2 21/72] ncr5380: Sleep when polling, if possible Geert Uytterhoeven <geert@linux-m68k.org> - 2015-12-06 11:20 +0100
Re: [PATCH v2 21/72] ncr5380: Sleep when polling, if possible Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 23:10 +0100
[PATCH v2 04/72] ncr5380: Remove more pointless macros Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 16/72] ncr5380: Proceed with next command after NCR5380_select() calls scsi_done Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 13/72] ncr5380: Remove redundant register writes Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 02/72] ncr5380: Remove redundant static variable initializers Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 11/72] ncr5380: Simplify bus reset handlers Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 27/72] ncr5380: Add missing lock in eh_abort_handler Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 23/72] ncr5380: Always retry arbitration and selection Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 09/72] atari_NCR5380: Reset bus on driver initialization if required Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 05/72] ncr5380: Remove NCR5380_local_declare and NCR5380_setup macros Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 22/72] ncr5380: Eliminate selecting state Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 03/72] ncr5380: Eliminate PDEBUG*, TDEBUG* and DTCDEBUG* macros Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 12/72] ncr5380: Remove unused hostdata->aborted flag Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 10/72] atari_NCR5380: Remove RESET_BOOT, CONFIG_ATARI_SCSI_TOSHIBA_DELAY and CONFIG_ATARI_SCSI_RESET_BOOT Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 18/72] ncr5380: Eliminate USLEEP_WAITLONG delay Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 15/72] ncr5380: Always escalate bad target time-out in NCR5380_select() Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 17/72] ncr5380: Keep BSY asserted when entering SELECTION phase Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
[PATCH v2 24/72] ncr5380: Implement NCR5380_dma_xfer_len and remove LIMIT_TRANSFERSIZE macro Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 05:10 +0100
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