diff options
author | Vladimir Oltean <olteanv@gmail.com> | 2021-03-10 14:03:40 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2021-03-10 13:14:14 -0800 |
commit | 176769d10f96aa695786b000c9cacb13e48189f9 (patch) | |
tree | 779d3fb773126cc96b81174fa8966c0e07fd0207 /drivers/net/ethernet/freescale/enetc | |
parent | e2359fad458a396df0673bc5d876f44ce700439d (diff) |
net: enetc: move the CBDR API to enetc_cbdr.c
Since there is a dedicated file in this driver for interacting with
control BD rings, it makes sense to move these functions there.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc')
-rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc.c | 54 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_cbdr.c | 54 |
2 files changed, 54 insertions, 54 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index 89d2cb348271..09f7fdbf93a7 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -991,60 +991,6 @@ static void enetc_free_rxtx_rings(struct enetc_ndev_priv *priv) enetc_free_tx_ring(priv->tx_ring[i]); } -int enetc_alloc_cbdr(struct device *dev, struct enetc_cbdr *cbdr) -{ - int size = cbdr->bd_count * sizeof(struct enetc_cbd); - - cbdr->bd_base = dma_alloc_coherent(dev, size, &cbdr->bd_dma_base, - GFP_KERNEL); - if (!cbdr->bd_base) - return -ENOMEM; - - /* h/w requires 128B alignment */ - if (!IS_ALIGNED(cbdr->bd_dma_base, 128)) { - dma_free_coherent(dev, size, cbdr->bd_base, cbdr->bd_dma_base); - return -EINVAL; - } - - cbdr->next_to_clean = 0; - cbdr->next_to_use = 0; - - return 0; -} - -void enetc_free_cbdr(struct device *dev, struct enetc_cbdr *cbdr) -{ - int size = cbdr->bd_count * sizeof(struct enetc_cbd); - - dma_free_coherent(dev, size, cbdr->bd_base, cbdr->bd_dma_base); - cbdr->bd_base = NULL; -} - -void enetc_setup_cbdr(struct enetc_hw *hw, struct enetc_cbdr *cbdr) -{ - /* set CBDR cache attributes */ - enetc_wr(hw, ENETC_SICAR2, - ENETC_SICAR_RD_COHERENT | ENETC_SICAR_WR_COHERENT); - - enetc_wr(hw, ENETC_SICBDRBAR0, lower_32_bits(cbdr->bd_dma_base)); - enetc_wr(hw, ENETC_SICBDRBAR1, upper_32_bits(cbdr->bd_dma_base)); - enetc_wr(hw, ENETC_SICBDRLENR, ENETC_RTBLENR_LEN(cbdr->bd_count)); - - enetc_wr(hw, ENETC_SICBDRPIR, 0); - enetc_wr(hw, ENETC_SICBDRCIR, 0); - - /* enable ring */ - enetc_wr(hw, ENETC_SICBDRMR, BIT(31)); - - cbdr->pir = hw->reg + ENETC_SICBDRPIR; - cbdr->cir = hw->reg + ENETC_SICBDRCIR; -} - -void enetc_clear_cbdr(struct enetc_hw *hw) -{ - enetc_wr(hw, ENETC_SICBDRMR, 0); -} - static int enetc_setup_default_rss_table(struct enetc_si *si, int num_groups) { int *rss_table; diff --git a/drivers/net/ethernet/freescale/enetc/enetc_cbdr.c b/drivers/net/ethernet/freescale/enetc/enetc_cbdr.c index 201cbc362e33..ad6aecda6b47 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_cbdr.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_cbdr.c @@ -3,6 +3,60 @@ #include "enetc.h" +int enetc_alloc_cbdr(struct device *dev, struct enetc_cbdr *cbdr) +{ + int size = cbdr->bd_count * sizeof(struct enetc_cbd); + + cbdr->bd_base = dma_alloc_coherent(dev, size, &cbdr->bd_dma_base, + GFP_KERNEL); + if (!cbdr->bd_base) + return -ENOMEM; + + /* h/w requires 128B alignment */ + if (!IS_ALIGNED(cbdr->bd_dma_base, 128)) { + dma_free_coherent(dev, size, cbdr->bd_base, cbdr->bd_dma_base); + return -EINVAL; + } + + cbdr->next_to_clean = 0; + cbdr->next_to_use = 0; + + return 0; +} + +void enetc_free_cbdr(struct device *dev, struct enetc_cbdr *cbdr) +{ + int size = cbdr->bd_count * sizeof(struct enetc_cbd); + + dma_free_coherent(dev, size, cbdr->bd_base, cbdr->bd_dma_base); + cbdr->bd_base = NULL; +} + +void enetc_setup_cbdr(struct enetc_hw *hw, struct enetc_cbdr *cbdr) +{ + /* set CBDR cache attributes */ + enetc_wr(hw, ENETC_SICAR2, + ENETC_SICAR_RD_COHERENT | ENETC_SICAR_WR_COHERENT); + + enetc_wr(hw, ENETC_SICBDRBAR0, lower_32_bits(cbdr->bd_dma_base)); + enetc_wr(hw, ENETC_SICBDRBAR1, upper_32_bits(cbdr->bd_dma_base)); + enetc_wr(hw, ENETC_SICBDRLENR, ENETC_RTBLENR_LEN(cbdr->bd_count)); + + enetc_wr(hw, ENETC_SICBDRPIR, 0); + enetc_wr(hw, ENETC_SICBDRCIR, 0); + + /* enable ring */ + enetc_wr(hw, ENETC_SICBDRMR, BIT(31)); + + cbdr->pir = hw->reg + ENETC_SICBDRPIR; + cbdr->cir = hw->reg + ENETC_SICBDRCIR; +} + +void enetc_clear_cbdr(struct enetc_hw *hw) +{ + enetc_wr(hw, ENETC_SICBDRMR, 0); +} + static void enetc_clean_cbdr(struct enetc_si *si) { struct enetc_cbdr *ring = &si->cbd_ring; |