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net/sfc/base: pass Rx buffer size to RxQ init if supported

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Riverhead requires Rx buffer size to be specified in INIT_RXQ.
If the parameter is not supported (e.g. on EF10 family adapters),
zero must be used on INIT_RXQ.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2019-02-07 16:29:38 +00:00 committed by Ferruh Yigit
parent 5df5d2647f
commit ec6080a1ac
3 changed files with 21 additions and 5 deletions
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10
drivers/net/sfc/base/ef10_nic.c
View File

@ -1205,6 +1205,16 @@ ef10_get_datapath_caps(
else
encp->enc_no_cont_ev_mode_supported = B_FALSE;
/*
* Check if buffer size may and must be specified on INIT_RXQ.
* It may be always specified to efx_rx_qcreate(), but will be
* just kept libefx internal if MCDI does not support it.
*/
if (CAP_FLAGS2(req, INIT_RXQ_WITH_BUFFER_SIZE))
encp->enc_init_rxq_with_buffer_size = B_TRUE;
else
encp->enc_init_rxq_with_buffer_size = B_FALSE;
/*
* Check if firmware-verified NVRAM updates must be used.
*

15
drivers/net/sfc/base/ef10_rx.c
View File

@ -21,6 +21,7 @@ efx_mcdi_init_rxq(
__in efsys_mem_t *esmp,
__in boolean_t disable_scatter,
__in boolean_t want_inner_classes,
__in uint32_t buf_size,
__in uint32_t ps_bufsize,
__in uint32_t es_bufs_per_desc,
__in uint32_t es_max_dma_len,
@ -29,8 +30,8 @@ efx_mcdi_init_rxq(
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
efx_mcdi_req_t req;
EFX_MCDI_DECLARE_BUF(payload, MC_CMD_INIT_RXQ_V3_IN_LEN,
MC_CMD_INIT_RXQ_V3_OUT_LEN);
EFX_MCDI_DECLARE_BUF(payload, MC_CMD_INIT_RXQ_V4_IN_LEN,
MC_CMD_INIT_RXQ_V4_OUT_LEN);
int npages = efx_rxq_nbufs(enp, ndescs);
int i;
efx_qword_t *dma_addr;
@ -84,9 +85,9 @@ efx_mcdi_init_rxq(
req.emr_cmd = MC_CMD_INIT_RXQ;
req.emr_in_buf = payload;
req.emr_in_length = MC_CMD_INIT_RXQ_V3_IN_LEN;
req.emr_in_length = MC_CMD_INIT_RXQ_V4_IN_LEN;
req.emr_out_buf = payload;
req.emr_out_length = MC_CMD_INIT_RXQ_V3_OUT_LEN;
req.emr_out_length = MC_CMD_INIT_RXQ_V4_OUT_LEN;
MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_SIZE, ndescs);
MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_TARGET_EVQ, eep->ee_index);
@ -120,6 +121,10 @@ efx_mcdi_init_rxq(
hol_block_timeout);
}
if (encp->enc_init_rxq_with_buffer_size)
MCDI_IN_SET_DWORD(req, INIT_RXQ_V4_IN_BUFFER_SIZE_BYTES,
buf_size);
dma_addr = MCDI_IN2(req, efx_qword_t, INIT_RXQ_IN_DMA_ADDR);
addr = EFSYS_MEM_ADDR(esmp);
@ -1140,7 +1145,7 @@ ef10_rx_qcreate(
want_inner_classes = B_FALSE;
if ((rc = efx_mcdi_init_rxq(enp, ndescs, eep, label, index,
esmp, disable_scatter, want_inner_classes,
esmp, disable_scatter, want_inner_classes, erp->er_buf_size,
ps_buf_size, es_bufs_per_desc, es_max_dma_len,
es_buf_stride, hol_block_timeout)) != 0)
goto fail12;

1
drivers/net/sfc/base/efx.h
View File

@ -1371,6 +1371,7 @@ typedef struct efx_nic_cfg_s {
boolean_t enc_enhanced_set_mac_supported;
boolean_t enc_init_evq_v2_supported;
boolean_t enc_no_cont_ev_mode_supported;
boolean_t enc_init_rxq_with_buffer_size;
boolean_t enc_rx_packed_stream_supported;
boolean_t enc_rx_var_packed_stream_supported;
boolean_t enc_rx_es_super_buffer_supported;