diff options
| author | Hariprasad Shenai <hariprasad@chelsio.com> | 2015-06-05 14:24:48 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-05 21:25:56 -0700 |
| commit | 5d700ecb06275af22b3db6559eb5b3d7a8e6bf70 (patch) | |
| tree | f38897aae80081e76cf3bca90f6ab0ba9317fbb7 /drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | |
| parent | 4f3a0fcfb64b107bfbec0779a02438b321cc5dcf (diff) | |
| download | linux-5d700ecb06275af22b3db6559eb5b3d7a8e6bf70.tar.bz2 | |
cxgb4: Add sge ec context flush service
Add function to flush the sge ec context cache, and utilize
this new function in the driver
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/t4_hw.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 3a56254f27a8..e24f650d719a 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -4530,6 +4530,32 @@ void t4_sge_decode_idma_state(struct adapter *adapter, int state) } /** + * t4_sge_ctxt_flush - flush the SGE context cache + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * + * Issues a FW command through the given mailbox to flush the + * SGE context cache. + */ +int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox) +{ + int ret; + u32 ldst_addrspace; + struct fw_ldst_cmd c; + + memset(&c, 0, sizeof(c)); + ldst_addrspace = FW_LDST_CMD_ADDRSPACE_V(FW_LDST_ADDRSPC_SGE_EGRC); + c.op_to_addrspace = cpu_to_be32(FW_CMD_OP_V(FW_LDST_CMD) | + FW_CMD_REQUEST_F | FW_CMD_READ_F | + ldst_addrspace); + c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c)); + c.u.idctxt.msg_ctxtflush = cpu_to_be32(FW_LDST_CMD_CTXTFLUSH_F); + + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c); + return ret; +} + +/** * t4_fw_hello - establish communication with FW * @adap: the adapter * @mbox: mailbox to use for the FW command |