From: Bart Van Assche <bvanassche@acm.org>
To: "Martin K . Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org, Bart Van Assche <bvanassche@acm.org>,
Adaptec OEM Raid Solutions <aacraid@microsemi.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>
Subject: [PATCH 17/84] aacraid: Call scsi_done() directly
Date: Fri, 17 Sep 2021 17:05:00 -0700 [thread overview]
Message-ID: <20210918000607.450448-18-bvanassche@acm.org> (raw)
In-Reply-To: <20210918000607.450448-1-bvanassche@acm.org>
The aacraid driver invokes scmd->scsi_done(scmd) for two types of SCSI
commands:
* SCSI commands initialized by the SCSI mid-layer.
* SCSI commands initialized by aac_probe_container().
The processing sequence for SCSI commands allocated by
aac_probe_container() is as follows:
aac_probe_container()
-> _aac_probe_container(scmd, aac_probe_container_callback1)
-> scmd->SCp.ptr = aac_probe_container_callback1
-> aac_fib_send(..., _aac_probe_container1, scmd)
-> fibptr->callback = _aac_probe_container1
-> fibptr->callback_data = scmd
fibptr->callback(scmd)
-> _aac_probe_container1(scmd, fibptr)
[ ... ]
-> _aac_probe_container2(scmd, fibptr)
-> Call scmd->SCp.ptr == aac_probe_container_callback1
-> scmd->device = NULL;
The processing sequence for SCSI commands allocated by the SCSI mid-layer
if _aac_probe_container() is called is as follows:
aac_queuecommand()
-> aac_scsi_cmd()
-> _aac_probe_container(scmd, aac_probe_container_callback2)
-> scmd->SCp.ptr = aac_probe_container_callback2
-> aac_fib_send(..., _aac_probe_container1, scmd)
fibptr->callback(scmd)
-> _aac_probe_container1(scmd, fibptr)
[ ... ]
-> _aac_probe_container2(scmd, fibptr)
-> Call scmd->SCp.ptr == aac_probe_container_callback2
Preserve the existing call sequences by calling scsi_done() for commands
submitted by the mid-layer or aac_probe_container_scsi_done() for commands
submitted by aac_probe_container().
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
drivers/scsi/aacraid/aachba.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 40b86acac17b..59f6b7b2a70a 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -223,6 +223,7 @@ static long aac_build_sghba(struct scsi_cmnd *scsicmd,
int sg_max, u64 sg_address);
static int aac_convert_sgraw2(struct aac_raw_io2 *rio2,
int pages, int nseg, int nseg_new);
+static void aac_probe_container_scsi_done(struct scsi_cmnd *scsi_cmnd);
static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
static int aac_send_hba_fib(struct scsi_cmnd *scsicmd);
#ifdef AAC_DETAILED_STATUS_INFO
@@ -332,7 +333,7 @@ static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
struct fib *fibptr) {
struct scsi_device *device;
- if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
+ if (unlikely(!scsicmd)) {
dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
aac_fib_complete(fibptr);
return 0;
@@ -519,7 +520,13 @@ int aac_get_containers(struct aac_dev *dev)
static void aac_scsi_done(struct scsi_cmnd *scmd)
{
- scmd->scsi_done(scmd);
+ if (scmd->device->request_queue) {
+ /* SCSI command has been submitted by the SCSI mid-layer. */
+ scsi_done(scmd);
+ } else {
+ /* SCSI command has been submitted by aac_probe_container(). */
+ aac_probe_container_scsi_done(scmd);
+ }
}
static void get_container_name_callback(void *context, struct fib * fibptr)
@@ -809,8 +816,8 @@ static void aac_probe_container_scsi_done(struct scsi_cmnd *scsi_cmnd)
int aac_probe_container(struct aac_dev *dev, int cid)
{
- struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
- struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
+ struct scsi_cmnd *scsicmd = kzalloc(sizeof(*scsicmd), GFP_KERNEL);
+ struct scsi_device *scsidev = kzalloc(sizeof(*scsidev), GFP_KERNEL);
int status;
if (!scsicmd || !scsidev) {
@@ -818,7 +825,6 @@ int aac_probe_container(struct aac_dev *dev, int cid)
kfree(scsidev);
return -ENOMEM;
}
- scsicmd->scsi_done = aac_probe_container_scsi_done;
scsicmd->device = scsidev;
scsidev->sdev_state = 0;
next prev parent reply other threads:[~2021-09-18 0:06 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-18 0:04 [PATCH 00/84] Call scsi_done() directly Bart Van Assche
2021-09-18 0:04 ` [PATCH 01/84] scsi: core: Use a member variable to track the SCSI command submitter Bart Van Assche
2021-09-24 9:36 ` Benjamin Block
2021-09-25 3:38 ` Bart Van Assche
2021-09-27 19:55 ` Benjamin Block
2021-09-28 16:54 ` Benjamin Block
2021-09-28 18:51 ` Bart Van Assche
2021-09-18 0:04 ` [PATCH 02/84] scsi: core: Rename scsi_mq_done() into scsi_done() and export it Bart Van Assche
2021-09-20 9:42 ` John Garry
2021-09-20 16:28 ` Bart Van Assche
2021-09-20 16:47 ` John Garry
2021-09-28 16:57 ` Benjamin Block
2021-09-18 0:04 ` [PATCH 03/84] scsi: core: Call scsi_done directly Bart Van Assche
2021-09-28 16:59 ` Benjamin Block
2021-09-18 0:04 ` [PATCH 04/84] ata: Call scsi_done() directly Bart Van Assche
2021-09-21 1:02 ` Damien Le Moal
2021-09-18 0:04 ` [PATCH 05/84] firewire: sbp2: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 06/84] ib_srp: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 07/84] message: fusion: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 08/84] zfcp_scsi: " Bart Van Assche
2021-09-28 17:01 ` Benjamin Block
2021-09-18 0:04 ` [PATCH 09/84] 3w-9xxx: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 10/84] 3w-sas: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 11/84] 3w-xxxx: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 12/84] 53c700: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 13/84] BusLogic: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 14/84] NCR5380: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 15/84] a100u2w: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 16/84] aacraid: Introduce aac_scsi_done() Bart Van Assche
2021-09-18 0:05 ` Bart Van Assche [this message]
2021-09-18 0:05 ` [PATCH 18/84] acornscsi: Call scsi_done() directly Bart Van Assche
2021-09-18 0:05 ` [PATCH 19/84] advansys: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 20/84] aha152x: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 21/84] aha1542: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 22/84] aic7xxx: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 23/84] arcmsr: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 24/84] atp870u: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 25/84] bfa: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 26/84] bnx2fc: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 27/84] csiostor: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 28/84] cxlflash: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 29/84] dc395x: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 30/84] dpt_i2o: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 31/84] esas2r: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 32/84] esp_scsi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 33/84] fas216: " Bart Van Assche
2021-09-18 0:25 ` Russell King (Oracle)
2021-09-19 2:25 ` Bart Van Assche
2021-09-18 0:05 ` [PATCH 34/84] fdomain: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 35/84] fnic: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 36/84] hpsa: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 37/84] hptiop: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 38/84] ibmvscsi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 39/84] imm: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 40/84] initio: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 41/84] ipr: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 42/84] ips: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 43/84] libfc: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 44/84] libiscsi: " Bart Van Assche
2021-09-18 18:34 ` Lee Duncan
2021-09-18 0:05 ` [PATCH 45/84] libsas: " Bart Van Assche
2021-09-22 17:26 ` John Garry
2021-09-18 0:05 ` [PATCH 46/84] lpfc: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 47/84] mac53c94: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 48/84] megaraid: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 49/84] " Bart Van Assche
2021-09-18 0:05 ` [PATCH 50/84] mesh: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 51/84] mpi3mr: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 52/84] mpt3sas: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 53/84] mvumi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 54/84] myrb: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 55/84] myrs: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 56/84] ncr53c8xx: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 57/84] nsp32: " Bart Van Assche
2021-09-18 1:10 ` Masanori Goto
2021-09-18 3:08 ` Bart Van Assche
2021-09-18 0:05 ` [PATCH 58/84] pcmcia: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 59/84] pmcraid: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 60/84] ppa: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 61/84] ps3rom: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 62/84] qedf: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 63/84] qla1280: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 64/84] qla2xxx: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 65/84] qla4xxx: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 66/84] qlogicfas408: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 67/84] qlogicpti: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 68/84] scsi_debug: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 69/84] smartpqi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 70/84] snic: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 71/84] stex: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 72/84] storvsc_drv: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 73/84] sym53c8xx_2: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 74/84] ufs: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 75/84] virtio_scsi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 76/84] vmw_pvscsi: " Bart Van Assche
2021-09-18 0:06 ` [PATCH 77/84] wd33c93: " Bart Van Assche
2021-09-18 0:06 ` [PATCH 78/84] wd719x: " Bart Van Assche
2021-09-22 16:25 ` [PATCH 79/84] xen-scsifront: " Bart Van Assche
2021-09-22 16:25 ` [PATCH 80/84] staging: rts5208: " Bart Van Assche
2021-09-23 6:49 ` Greg Kroah-Hartman
2021-09-22 16:25 ` [PATCH 81/84] staging: unisys: visorhba: " Bart Van Assche
2021-09-22 16:26 ` [PATCH 82/84] target/tcm_loop: " Bart Van Assche
2021-09-22 16:26 ` [PATCH 83/84] usb: " Bart Van Assche
2021-09-22 16:26 ` [PATCH 84/84] scsi_lib: " Bart Van Assche
2021-09-28 17:04 ` Benjamin Block
2021-09-23 8:15 ` [PATCH 79/84] xen-scsifront: " Juergen Gross
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