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Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

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Pull SCSI target updates from Nicholas Bellinger:
 "Here are the target pending updates for v3.15-rc1.  Apologies in
  advance for waiting until the second to last day of the merge window
  to send these out.

  The highlights this round include:

   - iser-target support for T10 PI (DIF) offloads (Sagi + Or)
   - Fix Task Aborted Status (TAS) handling in target-core (Alex Leung)
   - Pass in transport supported PI at session initialization (Sagi + MKP + nab)
   - Add WRITE_INSERT + READ_STRIP T10 PI support in target-core (nab + Sagi)
   - Fix iscsi-target ERL=2 ASYNC_EVENT connection pointer bug (nab)
   - Fix tcm_fc use-after-free of ft_tpg (Andy Grover)
   - Use correct ib_sg_dma primitives in ib_isert (Mike Marciniszyn)

  Also, note the virtio-scsi + vhost-scsi changes to expose T10 PI
  metadata into KVM guest have been left-out for now, as there where a
  few comments from MST + Paolo that where not able to be addressed in
  time for v3.15.  Please expect this feature for v3.16-rc1"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (43 commits)
  ib_srpt: Use correct ib_sg_dma primitives
  target/tcm_fc: Rename ft_tport_create to ft_tport_get
  target/tcm_fc: Rename ft_{add,del}_lport to {add,del}_wwn
  target/tcm_fc: Rename structs and list members for clarity
  target/tcm_fc: Limit to 1 TPG per wwn
  target/tcm_fc: Don't export ft_lport_list
  target/tcm_fc: Fix use-after-free of ft_tpg
  target: Add check to prevent Abort Task from aborting itself
  target: Enable READ_STRIP emulation in target_complete_ok_work
  target/sbc: Add sbc_dif_read_strip software emulation
  target: Enable WRITE_INSERT emulation in target_execute_cmd
  target/sbc: Add sbc_dif_generate software emulation
  target/sbc: Only expose PI read_cap16 bits when supported by fabric
  target/spc: Only expose PI mode page bits when supported by fabric
  target/spc: Only expose PI inquiry bits when supported by fabric
  target: Pass in transport supported PI at session initialization
  target/iblock: Fix double bioset_integrity_free bug
  Target/sbc: Initialize COMPARE_AND_WRITE write_sg scatterlist
  target/rd: T10-Dif: RAM disk is allocating more space than required.
  iscsi-target: Fix ERL=2 ASYNC_EVENT connection pointer bug
  ...
This commit is contained in:
Linus Torvalds
2014-04-12 16:51:08 -07:00
parent 9309444906 b076808051
commit 141eaccd01
33 changed files with 1243 additions and 439 deletions
Download Patch File Download Diff File Expand all files Collapse all files

832
drivers/infiniband/ulp/isert/ib_isert.c
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File diff suppressed because it is too large Load Diff

38
drivers/infiniband/ulp/isert/ib_isert.h
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@@ -50,11 +50,35 @@ struct iser_tx_desc {
struct ib_send_wr send_wr;
} __packed;
enum isert_indicator {
ISERT_PROTECTED = 1 << 0,
ISERT_DATA_KEY_VALID = 1 << 1,
ISERT_PROT_KEY_VALID = 1 << 2,
ISERT_SIG_KEY_VALID = 1 << 3,
};
struct pi_context {
struct ib_mr *prot_mr;
struct ib_fast_reg_page_list *prot_frpl;
struct ib_mr *sig_mr;
};
struct fast_reg_descriptor {
struct list_head list;
struct ib_mr *data_mr;
struct ib_fast_reg_page_list *data_frpl;
bool valid;
struct list_head list;
struct ib_mr *data_mr;
struct ib_fast_reg_page_list *data_frpl;
u8 ind;
struct pi_context *pi_ctx;
};
struct isert_data_buf {
struct scatterlist *sg;
int nents;
u32 sg_off;
u32 len; /* cur_rdma_length */
u32 offset;
unsigned int dma_nents;
enum dma_data_direction dma_dir;
};
struct isert_rdma_wr {
@@ -63,12 +87,11 @@ struct isert_rdma_wr {
enum iser_ib_op_code iser_ib_op;
struct ib_sge *ib_sge;
struct ib_sge s_ib_sge;
int num_sge;
struct scatterlist *sge;
int send_wr_num;
struct ib_send_wr *send_wr;
struct ib_send_wr s_send_wr;
u32 cur_rdma_length;
struct isert_data_buf data;
struct isert_data_buf prot;
struct fast_reg_descriptor *fr_desc;
};
@@ -141,6 +164,7 @@ struct isert_cq_desc {
struct isert_device {
int use_fastreg;
bool pi_capable;
int cqs_used;
int refcount;
int cq_active_qps[ISERT_MAX_CQ];

27
drivers/infiniband/ulp/srpt/ib_srpt.c
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@@ -1078,6 +1078,7 @@ static void srpt_unmap_sg_to_ib_sge(struct srpt_rdma_ch *ch,
static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
struct srpt_send_ioctx *ioctx)
{
struct ib_device *dev = ch->sport->sdev->device;
struct se_cmd *cmd;
struct scatterlist *sg, *sg_orig;
int sg_cnt;
@@ -1124,7 +1125,7 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
db = ioctx->rbufs;
tsize = cmd->data_length;
dma_len = sg_dma_len(&sg[0]);
dma_len = ib_sg_dma_len(dev, &sg[0]);
riu = ioctx->rdma_ius;
/*
@@ -1155,7 +1156,8 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
++j;
if (j < count) {
sg = sg_next(sg);
dma_len = sg_dma_len(sg);
dma_len = ib_sg_dma_len(
dev, sg);
}
}
} else {
@@ -1192,8 +1194,8 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
tsize = cmd->data_length;
riu = ioctx->rdma_ius;
sg = sg_orig;
dma_len = sg_dma_len(&sg[0]);
dma_addr = sg_dma_address(&sg[0]);
dma_len = ib_sg_dma_len(dev, &sg[0]);
dma_addr = ib_sg_dma_address(dev, &sg[0]);
/* this second loop is really mapped sg_addres to rdma_iu->ib_sge */
for (i = 0, j = 0;
@@ -1216,8 +1218,10 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
++j;
if (j < count) {
sg = sg_next(sg);
dma_len = sg_dma_len(sg);
dma_addr = sg_dma_address(sg);
dma_len = ib_sg_dma_len(
dev, sg);
dma_addr = ib_sg_dma_address(
dev, sg);
}
}
} else {
@@ -2580,7 +2584,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
goto destroy_ib;
}
ch->sess = transport_init_session();
ch->sess = transport_init_session(TARGET_PROT_NORMAL);
if (IS_ERR(ch->sess)) {
rej->reason = __constant_cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
@@ -3081,6 +3085,14 @@ static void srpt_queue_tm_rsp(struct se_cmd *cmd)
srpt_queue_response(cmd);
}
static void srpt_aborted_task(struct se_cmd *cmd)
{
struct srpt_send_ioctx *ioctx = container_of(cmd,
struct srpt_send_ioctx, cmd);
srpt_unmap_sg_to_ib_sge(ioctx->ch, ioctx);
}
static int srpt_queue_status(struct se_cmd *cmd)
{
struct srpt_send_ioctx *ioctx;
@@ -3928,6 +3940,7 @@ static struct target_core_fabric_ops srpt_template = {
.queue_data_in = srpt_queue_data_in,
.queue_status = srpt_queue_status,
.queue_tm_rsp = srpt_queue_tm_rsp,
.aborted_task = srpt_aborted_task,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c