Enhance cxgb4_t4_bar2_sge_qregs() and cxgb4_bar2_sge_qregs() to support T4
user mode mappings. Update all the current users as well.
Signed-off-by: Steve Wise <sw...@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <haripra...@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 4 +++-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/sge.c | 4 ++--
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 7 ++++---
5 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 524d110..e052f05 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -1185,6 +1185,7 @@ enum t4_bar2_qtype { T4_BAR2_QTYPE_EGRESS,
T4_BAR2_QTYPE_INGRESS };
int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
unsigned int qid,
enum t4_bar2_qtype qtype,
+ int user,
u64 *pbar2_qoffset,
unsigned int *pbar2_qid);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 803d91b..a935559 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2145,6 +2145,7 @@ EXPORT_SYMBOL(cxgb4_read_sge_timestamp);
int cxgb4_bar2_sge_qregs(struct net_device *dev,
unsigned int qid,
enum cxgb4_bar2_qtype qtype,
+ int user,
u64 *pbar2_qoffset,
unsigned int *pbar2_qid)
{
@@ -2153,6 +2154,7 @@ int cxgb4_bar2_sge_qregs(struct net_device *dev,
(qtype == CXGB4_BAR2_QTYPE_EGRESS
? T4_BAR2_QTYPE_EGRESS
: T4_BAR2_QTYPE_INGRESS),
+ user,
pbar2_qoffset,
pbar2_qid);
}
@@ -2351,7 +2353,7 @@ static void process_db_drop(struct work_struct *work)
int ret;
ret = cxgb4_t4_bar2_sge_qregs(adap, qid, T4_BAR2_QTYPE_EGRESS,
- &bar2_qoffset, &bar2_qid);
+ 0, &bar2_qoffset, &bar2_qid);
if (ret)
dev_err(adap->pdev_dev, "doorbell drop recovery: "
"qid=%d, pidx_inc=%d\n", qid, pidx_inc);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index 78ab4d4..e33934a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -306,6 +306,7 @@ enum cxgb4_bar2_qtype { CXGB4_BAR2_QTYPE_EGRESS,
CXGB4_BAR2_QTYPE_INGRESS };
int cxgb4_bar2_sge_qregs(struct net_device *dev,
unsigned int qid,
enum cxgb4_bar2_qtype qtype,
+ int user,
u64 *pbar2_qoffset,
unsigned int *pbar2_qid);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c
b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index 0d2edda..1b99aec 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -2429,8 +2429,8 @@ static void __iomem *bar2_address(struct adapter *adapter,
u64 bar2_qoffset;
int ret;
- ret = cxgb4_t4_bar2_sge_qregs(adapter, qid, qtype,
- &bar2_qoffset, pbar2_qid);
+ ret = cxgb4_t4_bar2_sge_qregs(adapter, qid, qtype, 0,
+ &bar2_qoffset, pbar2_qid);
if (ret)
return NULL;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 5959e3a..2d76a07 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -5102,6 +5102,7 @@ int t4_prep_adapter(struct adapter *adapter)
* @adapter: the adapter
* @qid: the Queue ID
* @qtype: the Ingress or Egress type for @qid
+ * @user: true if this request is for a user mode queue
* @pbar2_qoffset: BAR2 Queue Offset
* @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
*
@@ -5125,6 +5126,7 @@ int t4_prep_adapter(struct adapter *adapter)
int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
unsigned int qid,
enum t4_bar2_qtype qtype,
+ int user,
u64 *pbar2_qoffset,
unsigned int *pbar2_qid)
{
@@ -5132,9 +5134,8 @@ int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
u64 bar2_page_offset, bar2_qoffset;
unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
- /* T4 doesn't support BAR2 SGE Queue registers.
- */
- if (is_t4(adapter->params.chip))
+ /* T4 doesn't support BAR2 SGE Queue registers for kernel mode queues */
+ if (!user && is_t4(adapter->params.chip))
return -EINVAL;
/* Get our SGE Page Size parameters.
--
2.3.4
--
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