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From 97308e74e2ae781d37437137686965395b94327b Mon Sep 17 00:00:00 2001
From: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Date: Mon, 16 Oct 2017 15:27:55 +0000
Subject: [PATCH] dpaa2-eth: Add dpni_set_tx_priorities API
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
---
drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h | 19 ++++++++++
drivers/net/ethernet/freescale/dpaa2/dpni.c | 49 +++++++++++++++++++++++++
drivers/net/ethernet/freescale/dpaa2/dpni.h | 44 ++++++++++++++++++++++
3 files changed, 112 insertions(+)
--- a/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
@@ -69,6 +69,7 @@
#define DPNI_CMDID_REMOVE_FS_ENT DPNI_CMD(0x245)
#define DPNI_CMDID_CLR_FS_ENT DPNI_CMD(0x246)
+#define DPNI_CMDID_SET_TX_PRIORITIES DPNI_CMD_V2(0x250)
#define DPNI_CMDID_GET_STATISTICS DPNI_CMD(0x25D)
#define DPNI_CMDID_RESET_STATISTICS DPNI_CMD(0x25E)
#define DPNI_CMDID_GET_QUEUE DPNI_CMD(0x25F)
@@ -393,6 +394,24 @@ struct dpni_cmd_clear_mac_filters {
u8 flags;
};
+#define DPNI_SEPARATE_GRP_SHIFT 0
+#define DPNI_SEPARATE_GRP_SIZE 1
+#define DPNI_MODE_1_SHIFT 0
+#define DPNI_MODE_1_SIZE 4
+#define DPNI_MODE_2_SHIFT 4
+#define DPNI_MODE_2_SIZE 4
+
+struct dpni_cmd_set_tx_priorities {
+ __le16 flags;
+ u8 prio_group_A;
+ u8 prio_group_B;
+ __le32 pad0;
+ u8 modes[4];
+ __le32 pad1;
+ __le64 pad2;
+ __le16 delta_bandwidth[8];
+};
+
#define DPNI_DIST_MODE_SHIFT 0
#define DPNI_DIST_MODE_SIZE 4
#define DPNI_MISS_ACTION_SHIFT 4
--- a/drivers/net/ethernet/freescale/dpaa2/dpni.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c
@@ -1355,6 +1355,55 @@ int dpni_clear_mac_filters(struct fsl_mc
}
/**
+ * dpni_set_tx_priorities() - Set transmission TC priority configuration
+ * @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
+ * @cfg: Transmission selection configuration
+ *
+ * warning: Allowed only when DPNI is disabled
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_tx_priorities(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_tx_priorities_cfg *cfg)
+{
+ struct dpni_cmd_set_tx_priorities *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_TX_PRIORITIES,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_tx_priorities *)cmd.params;
+ dpni_set_field(cmd_params->flags,
+ SEPARATE_GRP,
+ cfg->separate_groups);
+ cmd_params->prio_group_A = cfg->prio_group_A;
+ cmd_params->prio_group_B = cfg->prio_group_B;
+
+ for (i = 0; i + 1 < DPNI_MAX_TC; i += 2) {
+ dpni_set_field(cmd_params->modes[i / 2],
+ MODE_1,
+ cfg->tc_sched[i].mode);
+ dpni_set_field(cmd_params->modes[i / 2],
+ MODE_2,
+ cfg->tc_sched[i + 1].mode);
+ }
+
+ for (i = 0; i < DPNI_MAX_TC; i++) {
+ cmd_params->delta_bandwidth[i] =
+ cpu_to_le16(cfg->tc_sched[i].delta_bandwidth);
+ }
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
* dpni_set_rx_tc_dist() - Set Rx traffic class distribution configuration
* @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
@@ -677,6 +677,50 @@ int dpni_prepare_key_cfg(const struct dp
u8 *key_cfg_buf);
/**
+ * enum dpni_tx_schedule_mode - DPNI Tx scheduling mode
+ * @DPNI_TX_SCHED_STRICT_PRIORITY: strict priority
+ * @DPNI_TX_SCHED_WEIGHTED_A: weighted based scheduling in group A
+ * @DPNI_TX_SCHED_WEIGHTED_B: weighted based scheduling in group B
+ */
+enum dpni_tx_schedule_mode {
+ DPNI_TX_SCHED_STRICT_PRIORITY = 0,
+ DPNI_TX_SCHED_WEIGHTED_A,
+ DPNI_TX_SCHED_WEIGHTED_B,
+};
+
+/**
+ * struct dpni_tx_schedule_cfg - Structure representing Tx scheduling conf
+ * @mode: Scheduling mode
+ * @delta_bandwidth: Bandwidth represented in weights from 100 to 10000;
+ * not applicable for 'strict-priority' mode;
+ */
+struct dpni_tx_schedule_cfg {
+ enum dpni_tx_schedule_mode mode;
+ u16 delta_bandwidth;
+};
+
+/**
+ * struct dpni_tx_priorities_cfg - Structure representing transmission
+ * priorities for DPNI TCs
+ * @tc_sched: An array of traffic-classes
+ * @prio_group_A: Priority of group A
+ * @prio_group_B: Priority of group B
+ * @separate_groups: Treat A and B groups as separate
+ * @ceetm_ch_idx: ceetm channel index to apply the changes
+ */
+struct dpni_tx_priorities_cfg {
+ struct dpni_tx_schedule_cfg tc_sched[DPNI_MAX_TC];
+ u8 prio_group_A;
+ u8 prio_group_B;
+ u8 separate_groups;
+};
+
+int dpni_set_tx_priorities(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_tx_priorities_cfg *cfg);
+
+/**
* struct dpni_rx_tc_dist_cfg - Rx traffic class distribution configuration
* @dist_size: Set the distribution size;
* supported values: 1,2,3,4,6,7,8,12,14,16,24,28,32,48,56,64,96,
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