If FW supports RDMA WRITE_WITH_IMMEDATE functionality, then advertise
that
to the ULDs. This will be used by iw_cxgb4 to allow WRITE_WITH_IMMEDIATE
work requests.
Signed-off-by: Potnuri Bharat Teja <bha...@chelsio.com>
Signed-off-by: Raju Rangoju <ra...@chelsio.com>
Signed-off-by: Ganesh Goudar <ganes...@chelsio.com>
Signed-off-by: Steve Wise <sw...@opengridcomputing.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 6 ++++++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c | 1 +
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 1 +
5 files changed, 10 insertions(+)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 6ce5c0d39d59..36110cf68595 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -390,6 +390,7 @@ struct adapter_params {
* used by the Port
*/
u8 mps_bg_map[MAX_NPORTS]; /* MPS Buffer Group Map */
+ bool write_w_imm_support; /* FW supports WRITE_WITH_IMMEDIATE */
};
/* State needed to monitor the forward progress of SGE Ingress DMA activities
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 3ce496494f3c..b31661ce2c75 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -4519,6 +4519,12 @@ static int adap_init0(struct adapter *adap)
"max_ordird_qp %d max_ird_adapter %d\n",
adap->params.max_ordird_qp,
adap->params.max_ird_adapter);
+
+ /* Enable write_with_immediate if FW supports it */
+ params[0] = FW_PARAM_DEV(RDMA_WRITE_WITH_IMM);
+ ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, params,
+ val);
+ adap->params.write_w_imm_support = (ret == 0 && val[0] != 0);
adap->num_ofld_uld += 2;
}
if (caps_cmd.iscsicaps) {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
index 2d827140a475..d8748e1752be 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
@@ -666,6 +666,7 @@ static void uld_init(struct adapter *adap, struct
cxgb4_lld_info *lld)
lld->ulptx_memwrite_dsgl = adap->params.ulptx_memwrite_dsgl;
lld->nodeid = dev_to_node(adap->pdev_dev);
lld->fr_nsmr_tpte_wr_support = adap->params.fr_nsmr_tpte_wr_support;
+ lld->write_w_imm_support = adap->params.write_w_imm_support;
}
static void uld_attach(struct adapter *adap, unsigned int uld)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index 96a69bdacb4c..fa01a5ce21fa 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -354,6 +354,7 @@ struct cxgb4_lld_info {
void **iscsi_ppm; /* iscsi page pod manager */
int nodeid; /* device numa node id */
bool fr_nsmr_tpte_wr_support; /* FW supports FR_NSMR_TPTE_WR */
+ bool write_w_imm_support; /* FW supports WRITE_WITH_IMMEDIATE */
};
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 3b0074c0200f..ef7cb5ceefc4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -1213,6 +1213,7 @@ enum fw_params_param_dev {
FW_PARAMS_PARAM_DEV_FILTER2_WR = 0x1D,
FW_PARAMS_PARAM_DEV_MPSBGMAP = 0x1E,
FW_PARAMS_PARAM_DEV_HMA_SIZE = 0x20,
+ FW_PARAMS_PARAM_DEV_RDMA_WRITE_WITH_IMM = 0x21,
};
/*
--
2.12.0
