From: Jayamohan Kallickal <jayamohan.kallickal@xxxxxxxxxx>
Set the ASYNC PDU Handle pBuffer for Data ring with the VA/PA
of the allocated memory for it.
To get the correct ASYNC PDY Handle iterate the list and compare
the PA set during initialization with the passed PHY Address.
The buffer_size and num_enteries are common for HDR and Data ring
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@xxxxxxxxxx>
Signed-off-by: Mike Christie <michaelc@xxxxxxxxxxx>
---
drivers/scsi/be2iscsi/be_main.c | 86 ++++++++++++++++++++-------------------
drivers/scsi/be2iscsi/be_main.h | 7 +--
2 files changed, 47 insertions(+), 46 deletions(-)
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 375756f..4765f47 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -1370,8 +1370,6 @@ hwi_get_async_handle(struct beiscsi_hba *phba,
struct be_bus_address phys_addr;
struct list_head *pbusy_list;
struct async_pdu_handle *pasync_handle = NULL;
- int buffer_len = 0;
- unsigned char buffer_index = -1;
unsigned char is_header = 0;
phys_addr.u.a32.address_lo =
@@ -1392,22 +1390,11 @@ hwi_get_async_handle(struct beiscsi_hba *phba,
pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1,
(pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
index) / 32] & PDUCQE_INDEX_MASK));
-
- buffer_len = (unsigned int)(phys_addr.u.a64.address -
- pasync_ctx->async_header.pa_base.u.a64.address);
-
- buffer_index = buffer_len /
- pasync_ctx->async_header.buffer_size;
-
break;
case UNSOL_DATA_NOTIFY:
pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe->
dw[offsetof(struct amap_i_t_dpdu_cqe,
index) / 32] & PDUCQE_INDEX_MASK));
- buffer_len = (unsigned long)(phys_addr.u.a64.address -
- pasync_ctx->async_data.pa_base.u.
- a64.address);
- buffer_index = buffer_len / pasync_ctx->async_data.buffer_size;
break;
default:
pbusy_list = NULL;
@@ -1418,11 +1405,9 @@ hwi_get_async_handle(struct beiscsi_hba *phba,
return NULL;
}
- WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries));
WARN_ON(list_empty(pbusy_list));
list_for_each_entry(pasync_handle, pbusy_list, link) {
- WARN_ON(pasync_handle->consumed);
- if (pasync_handle->index == buffer_index)
+ if (pasync_handle->pa.u.a64.address == phys_addr.u.a64.address)
break;
}
@@ -1449,15 +1434,13 @@ hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx,
unsigned int num_entries, writables = 0;
unsigned int *pep_read_ptr, *pwritables;
-
+ num_entries = pasync_ctx->num_entries;
if (is_header) {
pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr;
pwritables = &pasync_ctx->async_header.writables;
- num_entries = pasync_ctx->async_header.num_entries;
} else {
pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr;
pwritables = &pasync_ctx->async_data.writables;
- num_entries = pasync_ctx->async_data.num_entries;
}
while ((*pep_read_ptr) != cq_index) {
@@ -1557,16 +1540,15 @@ static void hwi_post_async_buffers(struct beiscsi_hba *phba,
phwi_ctrlr = phba->phwi_ctrlr;
pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+ num_entries = pasync_ctx->num_entries;
if (is_header) {
- num_entries = pasync_ctx->async_header.num_entries;
writables = min(pasync_ctx->async_header.writables,
pasync_ctx->async_header.free_entries);
pfree_link = pasync_ctx->async_header.free_list.next;
host_write_num = pasync_ctx->async_header.host_write_ptr;
ring_id = phwi_ctrlr->default_pdu_hdr.id;
} else {
- num_entries = pasync_ctx->async_data.num_entries;
writables = min(pasync_ctx->async_data.writables,
pasync_ctx->async_data.free_entries);
pfree_link = pasync_ctx->async_data.free_list.next;
@@ -2450,7 +2432,7 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
struct hba_parameters *p = &phba->params;
struct hwi_async_pdu_context *pasync_ctx;
struct async_pdu_handle *pasync_header_h, *pasync_data_h;
- unsigned int index;
+ unsigned int index, idx, num_per_mem, num_async_data;
struct be_mem_descriptor *mem_descr;
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
@@ -2462,10 +2444,8 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx;
memset(pasync_ctx, 0, sizeof(*pasync_ctx));
- pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl;
- pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz;
- pasync_ctx->async_data.buffer_size = p->defpdu_data_sz;
- pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl;
+ pasync_ctx->num_entries = p->asyncpdus_per_ctrl;
+ pasync_ctx->buffer_size = p->defpdu_hdr_sz;
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += HWI_MEM_ASYNC_HEADER_BUF;
@@ -2510,19 +2490,6 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
pasync_ctx->async_header.writables = 0;
INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_DATA_BUF;
- if (mem_descr->mem_array[0].virtual_address) {
- SE_DEBUG(DBG_LVL_8,
- "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF"
- "va=%p\n", mem_descr->mem_array[0].virtual_address);
- } else
- shost_printk(KERN_WARNING, phba->shost,
- "No Virtual address\n");
- pasync_ctx->async_data.va_base =
- mem_descr->mem_array[0].virtual_address;
- pasync_ctx->async_data.pa_base.u.a64.address =
- mem_descr->mem_array[0].bus_address.u.a64.address;
mem_descr = (struct be_mem_descriptor *)phba->init_mem;
mem_descr += HWI_MEM_ASYNC_DATA_RING;
@@ -2553,6 +2520,25 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
pasync_data_h =
(struct async_pdu_handle *)pasync_ctx->async_data.handle_base;
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_DATA_BUF;
+ if (mem_descr->mem_array[0].virtual_address) {
+ SE_DEBUG(DBG_LVL_8,
+ "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF"
+ "va=%p\n", mem_descr->mem_array[0].virtual_address);
+ } else
+ shost_printk(KERN_WARNING, phba->shost,
+ "No Virtual address\n");
+ idx = 0;
+ pasync_ctx->async_data.va_base =
+ mem_descr->mem_array[idx].virtual_address;
+ pasync_ctx->async_data.pa_base.u.a64.address =
+ mem_descr->mem_array[idx].bus_address.u.a64.address;
+
+ num_async_data = ((mem_descr->mem_array[idx].size) /
+ phba->params.defpdu_data_sz);
+ num_per_mem = 0;
+
for (index = 0; index < p->asyncpdus_per_ctrl; index++) {
pasync_header_h->cri = -1;
pasync_header_h->index = (char)index;
@@ -2578,14 +2564,29 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
pasync_data_h->cri = -1;
pasync_data_h->index = (char)index;
INIT_LIST_HEAD(&pasync_data_h->link);
+
+ if (!num_async_data) {
+ num_per_mem = 0;
+ idx++;
+ pasync_ctx->async_data.va_base =
+ mem_descr->mem_array[idx].virtual_address;
+ pasync_ctx->async_data.pa_base.u.a64.address =
+ mem_descr->mem_array[idx].
+ bus_address.u.a64.address;
+
+ num_async_data = ((mem_descr->mem_array[idx].size) /
+ phba->params.defpdu_data_sz);
+ }
pasync_data_h->pbuffer =
(void *)((unsigned long)
(pasync_ctx->async_data.va_base) +
- (p->defpdu_data_sz * index));
+ (p->defpdu_data_sz * num_per_mem));
pasync_data_h->pa.u.a64.address =
pasync_ctx->async_data.pa_base.u.a64.address +
- (p->defpdu_data_sz * index);
+ (p->defpdu_data_sz * num_per_mem);
+ num_per_mem++;
+ num_async_data--;
list_add_tail(&pasync_data_h->link,
&pasync_ctx->async_data.free_list);
@@ -3993,7 +3994,8 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
&io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun));
AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb,
- cpu_to_be16(*(unsigned short *)&io_task->cmd_bhs->iscsi_hdr.lun));
+ cpu_to_be16(*(unsigned short *)
+ &io_task->cmd_bhs->iscsi_hdr.lun));
AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen);
AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
io_task->pwrb_handle->wrb_index);
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index b4a06d5..50f231f 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -525,8 +525,6 @@ struct hwi_async_pdu_context {
unsigned int free_entries;
unsigned int busy_entries;
- unsigned int buffer_size;
- unsigned int num_entries;
struct list_head free_list;
} async_header;
@@ -543,11 +541,12 @@ struct hwi_async_pdu_context {
unsigned int free_entries;
unsigned int busy_entries;
- unsigned int buffer_size;
struct list_head free_list;
- unsigned int num_entries;
} async_data;
+ unsigned int buffer_size;
+ unsigned int num_entries;
+
/**
* This is a varying size list! Do not add anything
* after this entry!!
--
1.7.7.6
--
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