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Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4.h1
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c16
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h1
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h1
4 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 028b5e540130..944f2cbc1795 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -308,6 +308,7 @@ struct adapter_params {
unsigned char bypass;
unsigned int ofldq_wr_cred;
+ bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */
};
#include "t4fw_api.h"
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 9222a8a8eec7..aeeaa06a7a34 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -3776,6 +3776,7 @@ static void uld_attach(struct adapter *adap, unsigned int uld)
lli.dbfifo_int_thresh = dbfifo_int_thresh;
lli.sge_pktshift = adap->sge.pktshift;
lli.enable_fw_ofld_conn = adap->flags & FW_OFLD_CONN;
+ lli.ulptx_memwrite_dsgl = adap->params.ulptx_memwrite_dsgl;
handle = ulds[uld].add(&lli);
if (IS_ERR(handle)) {
@@ -5381,6 +5382,21 @@ static int adap_init0(struct adapter *adap)
(void) t4_set_params(adap, adap->mbox, adap->fn, 0, 1, params, val);
/*
+ * Find out whether we're allowed to use the T5+ ULPTX MEMWRITE DSGL
+ * capability. Earlier versions of the firmware didn't have the
+ * ULPTX_MEMWRITE_DSGL so we'll interpret a query failure as no
+ * permission to use ULPTX MEMWRITE DSGL.
+ */
+ if (is_t4(adap->params.chip)) {
+ adap->params.ulptx_memwrite_dsgl = false;
+ } else {
+ params[0] = FW_PARAM_DEV(ULPTX_MEMWRITE_DSGL);
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0,
+ 1, params, val);
+ adap->params.ulptx_memwrite_dsgl = (ret == 0 && val[0] != 0);
+ }
+
+ /*
* Get device capabilities so we can determine what resources we need
* to manage.
*/
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index 4dd0a82533e4..e274a047528f 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -253,6 +253,7 @@ struct cxgb4_lld_info {
/* packet data */
bool enable_fw_ofld_conn; /* Enable connection through fw */
/* WR */
+ bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */
};
struct cxgb4_uld_info {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index af6e12480e51..9cc973fbcf26 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -932,6 +932,7 @@ enum fw_params_param_dev {
FW_PARAMS_PARAM_DEV_FWREV = 0x0B,
FW_PARAMS_PARAM_DEV_TPREV = 0x0C,
FW_PARAMS_PARAM_DEV_CF = 0x0D,
+ FW_PARAMS_PARAM_DEV_ULPTX_MEMWRITE_DSGL = 0x17,
};
/*
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