diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0203-dpaa2-eth-Add-Tx-shaping-API.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0203-dpaa2-eth-Add-Tx-shaping-API.patch | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0203-dpaa2-eth-Add-Tx-shaping-API.patch b/target/linux/layerscape/patches-5.4/701-net-0203-dpaa2-eth-Add-Tx-shaping-API.patch new file mode 100644 index 0000000000..f1bbc5546d --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0203-dpaa2-eth-Add-Tx-shaping-API.patch @@ -0,0 +1,94 @@ +From bec2af878c58bbd12f9009948d4fc58ad9c7c1d3 Mon Sep 17 00:00:00 2001 +From: Ioana Radulescu <ruxandra.radulescu@nxp.com> +Date: Fri, 5 May 2017 18:45:50 +0300 +Subject: [PATCH] dpaa2-eth: Add Tx shaping API + +DPNIs can be configured to accept a maximum Tx rate and +burst size. Add the MC API for controlling these parameters. + +Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> +--- + drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h | 8 +++++++ + drivers/net/ethernet/freescale/dpaa2/dpni.c | 29 +++++++++++++++++++++++++ + drivers/net/ethernet/freescale/dpaa2/dpni.h | 15 +++++++++++++ + 3 files changed, 52 insertions(+) + +--- a/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h ++++ b/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h +@@ -315,6 +315,14 @@ struct dpni_rsp_get_link_state { + __le64 options; + }; + ++struct dpni_cmd_set_tx_shaping { ++ /* cmd word 0 */ ++ __le16 max_burst_size; ++ __le16 pad[3]; ++ /* cmd word 1 */ ++ __le32 rate_limit; ++}; ++ + struct dpni_cmd_set_max_frame_length { + __le16 max_frame_length; + }; +--- a/drivers/net/ethernet/freescale/dpaa2/dpni.c ++++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c +@@ -926,6 +926,35 @@ int dpni_get_link_state(struct fsl_mc_io + } + + /** ++ * dpni_set_tx_shaping() - Set the transmit shaping ++ * @mc_io: Pointer to MC portal's I/O object ++ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' ++ * @token: Token of DPNI object ++ * @tx_shaper: Tx shaping configuration ++ * ++ * Return: '0' on Success; Error code otherwise. ++ */ ++int dpni_set_tx_shaping(struct fsl_mc_io *mc_io, ++ u32 cmd_flags, ++ u16 token, ++ const struct dpni_tx_shaping_cfg *tx_shaper) ++{ ++ struct fsl_mc_command cmd = { 0 }; ++ struct dpni_cmd_set_tx_shaping *cmd_params; ++ ++ /* prepare command */ ++ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_TX_SHAPING, ++ cmd_flags, ++ token); ++ cmd_params = (struct dpni_cmd_set_tx_shaping *)cmd.params; ++ cmd_params->max_burst_size = cpu_to_le16(tx_shaper->max_burst_size); ++ cmd_params->rate_limit = cpu_to_le32(tx_shaper->rate_limit); ++ ++ /* send command to mc*/ ++ return mc_send_command(mc_io, &cmd); ++} ++ ++/** + * dpni_set_max_frame_length() - Set the maximum received frame length. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' +--- a/drivers/net/ethernet/freescale/dpaa2/dpni.h ++++ b/drivers/net/ethernet/freescale/dpaa2/dpni.h +@@ -555,6 +555,21 @@ int dpni_get_link_state(struct fsl_mc_io + u16 token, + struct dpni_link_state *state); + ++/** ++ * struct dpni_tx_shaping - Structure representing DPNI tx shaping configuration ++ * @rate_limit: rate in Mbps ++ * @max_burst_size: burst size in bytes (up to 64KB) ++ */ ++struct dpni_tx_shaping_cfg { ++ u32 rate_limit; ++ u16 max_burst_size; ++}; ++ ++int dpni_set_tx_shaping(struct fsl_mc_io *mc_io, ++ u32 cmd_flags, ++ u16 token, ++ const struct dpni_tx_shaping_cfg *tx_shaper); ++ + int dpni_set_max_frame_length(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, |