redonkable/alistair23-linux
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cxgb4: Support firmware rdma write completion work request.

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If FW supports RDMA WRITE_COMPLETION functionality, then advertise that
to the ULDs. This will be used by iw_cxgb4 to allow WRITE_COMPLETION
work requests.

Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Raju Rangoju 2018-03-20 15:41:42 +05:30 committed by David S. Miller
parent 43db929640
commit f3910c6278
5 changed files with 11 additions and 0 deletions
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1
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
View file

@ -391,6 +391,7 @@ struct adapter_params {
*/
u8 mps_bg_map[MAX_NPORTS]; /* MPS Buffer Group Map */
bool write_w_imm_support; /* FW supports WRITE_WITH_IMMEDIATE */
bool write_cmpl_support; /* FW supports WRITE_CMPL */
};
/* State needed to monitor the forward progress of SGE Ingress DMA activities

6
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View file

@ -4525,6 +4525,12 @@ static int adap_init0(struct adapter *adap)
ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, params,
val);
adap->params.write_w_imm_support = (ret == 0 && val[0] != 0);
/* Enable write_cmpl if FW supports it */
params[0] = FW_PARAM_DEV(RI_WRITE_CMPL_WR);
ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, params,
val);
adap->params.write_cmpl_support = (ret == 0 && val[0] != 0);
adap->num_ofld_uld += 2;
}
if (caps_cmd.iscsicaps) {

1
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
View file

@ -667,6 +667,7 @@ static void uld_init(struct adapter *adap, struct cxgb4_lld_info *lld)
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;
lld->write_cmpl_support = adap->params.write_cmpl_support;
}
static void uld_attach(struct adapter *adap, unsigned int uld)

1
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
View file

@ -355,6 +355,7 @@ struct cxgb4_lld_info {
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 */
bool write_cmpl_support; /* FW supports WRITE_CMPL WR */
};
struct cxgb4_uld_info {

2
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
View file

@ -101,6 +101,7 @@ enum fw_wr_opcodes {
FW_RI_BIND_MW_WR = 0x18,
FW_RI_FR_NSMR_WR = 0x19,
FW_RI_FR_NSMR_TPTE_WR = 0x20,
FW_RI_RDMA_WRITE_CMPL_WR = 0x21,
FW_RI_INV_LSTAG_WR = 0x1a,
FW_ISCSI_TX_DATA_WR = 0x45,
FW_PTP_TX_PKT_WR = 0x46,
@ -1214,6 +1215,7 @@ enum fw_params_param_dev {
FW_PARAMS_PARAM_DEV_MPSBGMAP = 0x1E,
FW_PARAMS_PARAM_DEV_HMA_SIZE = 0x20,
FW_PARAMS_PARAM_DEV_RDMA_WRITE_WITH_IMM = 0x21,
FW_PARAMS_PARAM_DEV_RI_WRITE_CMPL_WR = 0x24,
};
/*