diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2021-08-06 17:28:09 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-08-06 16:18:15 -0700 |
| commit | 35ba6abb73e4d2ba21a566d3671618f4a5503c27 (patch) | |
| tree | d50f39d58bfc53a4ae3e6333ba919b062ecf0e59 /drivers/net/ethernet/ti | |
| parent | 06669e6880be7422bb9926f71be39c4924b92fea (diff) | |
| download | lwn-35ba6abb73e4d2ba21a566d3671618f4a5503c27.tar.gz lwn-35ba6abb73e4d2ba21a566d3671618f4a5503c27.zip | |
net: ethernet: ti: davinci_cpdma: revert "drop frame padding"
This reverts commit 9ffc513f95ee ("net: ethernet: ti: davinci_cpdma: drop
frame padding") which has depndency from not yet merged patch [1] and so
breaks cpsw_new driver.
[1] https://patchwork.kernel.org/project/netdevbpf/patch/20210805145511.12016-1-grygorii.strashko@ti.com/
Fixes: 9ffc513f95ee ("net: ethernet: ti: davinci_cpdma: drop frame padding")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20210806142809.15069-1-grygorii.strashko@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/ti')
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw_priv.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.c | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_emac.c | 1 |
4 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/cpsw_priv.c b/drivers/net/ethernet/ti/cpsw_priv.c index d97a72c9ec53..ecc2a6b7e28f 100644 --- a/drivers/net/ethernet/ti/cpsw_priv.c +++ b/drivers/net/ethernet/ti/cpsw_priv.c @@ -518,6 +518,7 @@ int cpsw_init_common(struct cpsw_common *cpsw, void __iomem *ss_regs, dma_params.num_chan = data->channels; dma_params.has_soft_reset = true; + dma_params.min_packet_size = CPSW_MIN_PACKET_SIZE; dma_params.desc_mem_size = data->bd_ram_size; dma_params.desc_align = 16; dma_params.has_ext_regs = true; diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index 753d94c9915a..d2eab5cd1e0c 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -1034,6 +1034,11 @@ static int cpdma_chan_submit_si(struct submit_info *si) return -ENOMEM; } + if (len < ctlr->params.min_packet_size) { + len = ctlr->params.min_packet_size; + chan->stats.runt_transmit_buff++; + } + mode = CPDMA_DESC_OWNER | CPDMA_DESC_SOP | CPDMA_DESC_EOP; cpdma_desc_to_port(chan, mode, si->directed); diff --git a/drivers/net/ethernet/ti/davinci_cpdma.h b/drivers/net/ethernet/ti/davinci_cpdma.h index 62151f13c7ce..d3cfe234d16a 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.h +++ b/drivers/net/ethernet/ti/davinci_cpdma.h @@ -26,6 +26,7 @@ struct cpdma_params { void __iomem *rxthresh, *rxfree; int num_chan; bool has_soft_reset; + int min_packet_size; dma_addr_t desc_mem_phys; dma_addr_t desc_hw_addr; int desc_mem_size; diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index cd2ef0282f38..b1c5cbe7478b 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1850,6 +1850,7 @@ static int davinci_emac_probe(struct platform_device *pdev) dma_params.txcp = priv->emac_base + 0x640; dma_params.rxcp = priv->emac_base + 0x660; dma_params.num_chan = EMAC_MAX_TXRX_CHANNELS; + dma_params.min_packet_size = EMAC_DEF_MIN_ETHPKTSIZE; dma_params.desc_hw_addr = hw_ram_addr; dma_params.desc_mem_size = pdata->ctrl_ram_size; dma_params.desc_align = 16; |