From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition size
---
kernel/drivers/target/loopback/tcm_loop.c | 70 +++++++++-------------------------
1 files changed, 19 insertions(+), 51 deletions(-)
diff --git a/kernel/drivers/target/loopback/tcm_loop.c b/kernel/drivers/target/loopback/tcm_loop.c
index bc8918f..5ae5d94 100644
--- a/kernel/drivers/target/loopback/tcm_loop.c
+++ b/kernel/drivers/target/loopback/tcm_loop.c
@@ -128,14 +128,6 @@
set_host_byte(sc, DID_ERROR);
goto out_done;
}
- if (scsi_bidi_cmnd(sc)) {
- struct scsi_data_buffer *sdb = scsi_in(sc);
-
- sgl_bidi = sdb->table.sgl;
- sgl_bidi_count = sdb->table.nents;
- se_cmd->se_cmd_flags |= SCF_BIDI;
-
- }
transfer_length = scsi_transfer_length(sc);
if (!scsi_prot_sg_count(sc) &&
@@ -304,12 +296,6 @@
return FAILED;
}
-static int tcm_loop_slave_alloc(struct scsi_device *sd)
-{
- blk_queue_flag_set(QUEUE_FLAG_BIDI, sd->request_queue);
- return 0;
-}
-
static struct scsi_host_template tcm_loop_driver_template = {
.show_info = tcm_loop_show_info,
.proc_name = "tcm_loopback",
@@ -324,8 +310,7 @@
.sg_tablesize = 256,
.cmd_per_lun = 1024,
.max_sectors = 0xFFFF,
- .use_clustering = DISABLE_CLUSTERING,
- .slave_alloc = tcm_loop_slave_alloc,
+ .dma_boundary = PAGE_SIZE - 1,
.module = THIS_MODULE,
.track_queue_depth = 1,
};
@@ -409,6 +394,7 @@
ret = device_register(&tl_hba->dev);
if (ret) {
pr_err("device_register() failed for tl_hba->dev: %d\n", ret);
+ put_device(&tl_hba->dev);
return -ENODEV;
}
@@ -458,11 +444,6 @@
root_device_unregister(tcm_loop_primary);
pr_debug("Releasing TCM Loop Core BUS\n");
-}
-
-static char *tcm_loop_get_fabric_name(void)
-{
- return "loopback";
}
static inline struct tcm_loop_tpg *tl_tpg(struct se_portal_group *se_tpg)
@@ -565,37 +546,15 @@
return 0;
}
-static int tcm_loop_write_pending_status(struct se_cmd *se_cmd)
-{
- return 0;
-}
-
-static int tcm_loop_queue_data_in(struct se_cmd *se_cmd)
+static int tcm_loop_queue_data_or_status(const char *func,
+ struct se_cmd *se_cmd, u8 scsi_status)
{
struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
struct tcm_loop_cmd, tl_se_cmd);
struct scsi_cmnd *sc = tl_cmd->sc;
pr_debug("%s() called for scsi_cmnd: %p cdb: 0x%02x\n",
- __func__, sc, sc->cmnd[0]);
-
- sc->result = SAM_STAT_GOOD;
- set_host_byte(sc, DID_OK);
- if ((se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) ||
- (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT))
- scsi_set_resid(sc, se_cmd->residual_count);
- sc->scsi_done(sc);
- return 0;
-}
-
-static int tcm_loop_queue_status(struct se_cmd *se_cmd)
-{
- struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
- struct tcm_loop_cmd, tl_se_cmd);
- struct scsi_cmnd *sc = tl_cmd->sc;
-
- pr_debug("%s() called for scsi_cmnd: %p cdb: 0x%02x\n",
- __func__, sc, sc->cmnd[0]);
+ func, sc, sc->cmnd[0]);
if (se_cmd->sense_buffer &&
((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) ||
@@ -606,7 +565,7 @@
sc->result = SAM_STAT_CHECK_CONDITION;
set_driver_byte(sc, DRIVER_SENSE);
} else
- sc->result = se_cmd->scsi_status;
+ sc->result = scsi_status;
set_host_byte(sc, DID_OK);
if ((se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) ||
@@ -614,6 +573,17 @@
scsi_set_resid(sc, se_cmd->residual_count);
sc->scsi_done(sc);
return 0;
+}
+
+static int tcm_loop_queue_data_in(struct se_cmd *se_cmd)
+{
+ return tcm_loop_queue_data_or_status(__func__, se_cmd, SAM_STAT_GOOD);
+}
+
+static int tcm_loop_queue_status(struct se_cmd *se_cmd)
+{
+ return tcm_loop_queue_data_or_status(__func__,
+ se_cmd, se_cmd->scsi_status);
}
static void tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
@@ -1103,7 +1073,7 @@
*/
ret = tcm_loop_setup_hba_bus(tl_hba, tcm_loop_hba_no_cnt);
if (ret)
- goto out;
+ return ERR_PTR(ret);
sh = tl_hba->sh;
tcm_loop_hba_no_cnt++;
@@ -1149,8 +1119,7 @@
static const struct target_core_fabric_ops loop_ops = {
.module = THIS_MODULE,
- .name = "loopback",
- .get_fabric_name = tcm_loop_get_fabric_name,
+ .fabric_name = "loopback",
.tpg_get_wwn = tcm_loop_get_endpoint_wwn,
.tpg_get_tag = tcm_loop_get_tag,
.tpg_check_demo_mode = tcm_loop_check_demo_mode,
@@ -1165,7 +1134,6 @@
.release_cmd = tcm_loop_release_cmd,
.sess_get_index = tcm_loop_sess_get_index,
.write_pending = tcm_loop_write_pending,
- .write_pending_status = tcm_loop_write_pending_status,
.set_default_node_attributes = tcm_loop_set_default_node_attributes,
.get_cmd_state = tcm_loop_get_cmd_state,
.queue_data_in = tcm_loop_queue_data_in,
--
Gitblit v1.6.2