diff options
Diffstat (limited to 'drivers/net/sfc/falcon.c')
| -rw-r--r-- | drivers/net/sfc/falcon.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index 4cb98d473c4..c23e8e2b094 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -2922,16 +2922,17 @@ static void falcon_init_rx_cfg(struct efx_nic *efx) const unsigned ctrl_xon_thr = 20; const unsigned ctrl_xoff_thr = 25; /* RX data FIFO thresholds (256-byte units; size varies) */ - unsigned data_xon_thr = - ((rx_xon_thresh_bytes >= 0) ? - rx_xon_thresh_bytes : efx->type->rx_xon_thresh) >> 8; - unsigned data_xoff_thr = - ((rx_xoff_thresh_bytes >= 0) ? - rx_xoff_thresh_bytes : efx->type->rx_xoff_thresh) >> 8; + int data_xon_thr = rx_xon_thresh_bytes >> 8; + int data_xoff_thr = rx_xoff_thresh_bytes >> 8; efx_oword_t reg; falcon_read(efx, ®, RX_CFG_REG_KER); if (falcon_rev(efx) <= FALCON_REV_A1) { + /* Data FIFO size is 5.5K */ + if (data_xon_thr < 0) + data_xon_thr = 512 >> 8; + if (data_xoff_thr < 0) + data_xoff_thr = 2048 >> 8; EFX_SET_OWORD_FIELD(reg, RX_DESC_PUSH_EN_A1, 0); EFX_SET_OWORD_FIELD(reg, RX_USR_BUF_SIZE_A1, huge_buf_size); EFX_SET_OWORD_FIELD(reg, RX_XON_MAC_TH_A1, data_xon_thr); @@ -2939,7 +2940,11 @@ static void falcon_init_rx_cfg(struct efx_nic *efx) EFX_SET_OWORD_FIELD(reg, RX_XON_TX_TH_A1, ctrl_xon_thr); EFX_SET_OWORD_FIELD(reg, RX_XOFF_TX_TH_A1, ctrl_xoff_thr); } else { - /* Register fields moved */ + /* Data FIFO size is 80K; register fields moved */ + if (data_xon_thr < 0) + data_xon_thr = 27648 >> 8; /* ~3*max MTU */ + if (data_xoff_thr < 0) + data_xoff_thr = 54272 >> 8; /* ~80Kb - 3*max MTU */ EFX_SET_OWORD_FIELD(reg, RX_DESC_PUSH_EN_B0, 0); EFX_SET_OWORD_FIELD(reg, RX_USR_BUF_SIZE_B0, huge_buf_size); EFX_SET_OWORD_FIELD(reg, RX_XON_MAC_TH_B0, data_xon_thr); @@ -3130,8 +3135,6 @@ struct efx_nic_type falcon_a_nic_type = { .max_dma_mask = FALCON_DMA_MASK, .tx_dma_mask = FALCON_TX_DMA_MASK, .bug5391_mask = 0xf, - .rx_xoff_thresh = 2048, - .rx_xon_thresh = 512, .rx_buffer_padding = 0x24, .max_interrupt_mode = EFX_INT_MODE_MSI, .phys_addr_channels = 4, @@ -3154,8 +3157,6 @@ struct efx_nic_type falcon_b_nic_type = { .max_dma_mask = FALCON_DMA_MASK, .tx_dma_mask = FALCON_TX_DMA_MASK, .bug5391_mask = 0, - .rx_xoff_thresh = 54272, /* ~80Kb - 3*max MTU */ - .rx_xon_thresh = 27648, /* ~3*max MTU */ .rx_buffer_padding = 0, .max_interrupt_mode = EFX_INT_MODE_MSIX, .phys_addr_channels = 32, /* Hardware limit is 64, but the legacy |