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path: root/drivers/net/ethernet/sfc/ef10.c
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Diffstat (limited to 'drivers/net/ethernet/sfc/ef10.c')
-rw-r--r--drivers/net/ethernet/sfc/ef10.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index f6e29a975e4e..2ce576919f97 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -197,11 +197,15 @@ static int efx_ef10_init_datapath_caps(struct efx_nic *efx)
nic_data->datapath_caps =
MCDI_DWORD(outbuf, GET_CAPABILITIES_OUT_FLAGS1);
- if (outlen >= MC_CMD_GET_CAPABILITIES_V2_OUT_LEN)
+ if (outlen >= MC_CMD_GET_CAPABILITIES_V2_OUT_LEN) {
nic_data->datapath_caps2 = MCDI_DWORD(outbuf,
GET_CAPABILITIES_V2_OUT_FLAGS2);
- else
+ nic_data->piobuf_size = MCDI_WORD(outbuf,
+ GET_CAPABILITIES_V2_OUT_SIZE_PIO_BUFF);
+ } else {
nic_data->datapath_caps2 = 0;
+ nic_data->piobuf_size = ER_DZ_TX_PIOBUF_SIZE;
+ }
/* record the DPCPU firmware IDs to determine VEB vswitching support.
*/
@@ -823,8 +827,8 @@ static int efx_ef10_link_piobufs(struct efx_nic *efx)
offset = ((efx->tx_channel_offset + efx->n_tx_channels -
tx_queue->channel->channel - 1) *
efx_piobuf_size);
- index = offset / ER_DZ_TX_PIOBUF_SIZE;
- offset = offset % ER_DZ_TX_PIOBUF_SIZE;
+ index = offset / nic_data->piobuf_size;
+ offset = offset % nic_data->piobuf_size;
/* When the host page size is 4K, the first
* host page in the WC mapping may be within
@@ -1159,11 +1163,11 @@ static int efx_ef10_dimension_resources(struct efx_nic *efx)
* functions of the controller.
*/
if (efx_piobuf_size != 0 &&
- ER_DZ_TX_PIOBUF_SIZE / efx_piobuf_size * EF10_TX_PIOBUF_COUNT >=
+ nic_data->piobuf_size / efx_piobuf_size * EF10_TX_PIOBUF_COUNT >=
efx->n_tx_channels) {
unsigned int n_piobufs =
DIV_ROUND_UP(efx->n_tx_channels,
- ER_DZ_TX_PIOBUF_SIZE / efx_piobuf_size);
+ nic_data->piobuf_size / efx_piobuf_size);
rc = efx_ef10_alloc_piobufs(efx, n_piobufs);
if (rc)