1 /* Copyright 2008 - 2016 Freescale Semiconductor Inc.
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12 * derived from this software without specific prior written permission.
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15 * GNU General Public License ("GPL") as published by the Free Software
16 * Foundation, either version 2 of that License or (at your option) any
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34 #include <linux/netdevice.h>
35 #include <soc/fsl/qman.h>
36 #include <soc/fsl/bman.h>
40 #include "dpaa_eth_trace.h"
42 #define DPAA_ETH_TXQ_NUM NR_CPUS
44 #define DPAA_BPS_NUM 3 /* number of bpools per interface */
46 /* More detailed FQ types - used for fine-grained WQ assignments */
48 FQ_TYPE_RX_DEFAULT = 1, /* Rx Default FQs */
49 FQ_TYPE_RX_ERROR, /* Rx Error FQs */
50 FQ_TYPE_TX, /* "Real" Tx FQs */
51 FQ_TYPE_TX_CONFIRM, /* Tx default Conf FQ (actually an Rx FQ) */
52 FQ_TYPE_TX_CONF_MQ, /* Tx conf FQs (one for each Tx FQ) */
53 FQ_TYPE_TX_ERROR, /* Tx Error FQs (these are actually Rx FQs) */
57 struct qman_fq fq_base;
58 struct list_head list;
59 struct net_device *net_dev;
65 enum dpaa_fq_type fq_type;
69 struct qman_fq rx_defq;
70 struct qman_fq tx_defq;
71 struct qman_fq rx_errq;
72 struct qman_fq tx_errq;
73 struct qman_fq egress_ern;
77 /* device used in the DMA mapping operations */
79 /* current number of buffers in the buffer pool alloted to each CPU */
80 int __percpu *percpu_count;
81 /* all buffers allocated for this pool have this raw size */
83 /* all buffers in this pool have this same usable size */
85 /* the buffer pools are initialized with config_count buffers for each
86 * CPU; at runtime the number of buffers per CPU is constantly brought
91 struct bman_pool *pool;
92 /* bpool can be seeded before use by this cb */
93 int (*seed_cb)(struct dpaa_bp *);
94 /* bpool can be emptied before freeing by this cb */
95 void (*free_buf_cb)(const struct dpaa_bp *, struct bm_buffer *);
99 struct dpaa_rx_errors {
100 u64 dme; /* DMA Error */
101 u64 fpe; /* Frame Physical Error */
102 u64 fse; /* Frame Size Error */
103 u64 phe; /* Header Error */
106 /* Counters for QMan ERN frames - one counter per rejection code */
107 struct dpaa_ern_cnt {
108 u64 cg_tdrop; /* Congestion group taildrop */
109 u64 wred; /* WRED congestion */
110 u64 err_cond; /* Error condition */
111 u64 early_window; /* Order restoration, frame too early */
112 u64 late_window; /* Order restoration, frame too late */
113 u64 fq_tdrop; /* FQ taildrop */
114 u64 fq_retired; /* FQ is retired */
115 u64 orp_zero; /* ORP disabled */
118 struct dpaa_napi_portal {
119 struct napi_struct napi;
120 struct qman_portal *p;
124 struct dpaa_percpu_priv {
125 struct net_device *net_dev;
126 struct dpaa_napi_portal np;
129 /* fragmented (non-linear) skbuffs received from the stack */
131 struct rtnl_link_stats64 stats;
132 struct dpaa_rx_errors rx_errors;
133 struct dpaa_ern_cnt ern_cnt;
136 struct dpaa_buffer_layout {
141 struct dpaa_percpu_priv __percpu *percpu_priv;
142 struct dpaa_bp *dpaa_bps[DPAA_BPS_NUM];
143 /* Store here the needed Tx headroom for convenience and speed
144 * (even though it can be computed based on the fields of buf_layout)
147 struct net_device *net_dev;
148 struct mac_device *mac_dev;
149 struct qman_fq *egress_fqs[DPAA_ETH_TXQ_NUM];
150 struct qman_fq *conf_fqs[DPAA_ETH_TXQ_NUM];
153 struct list_head dpaa_fq_list;
155 u32 msg_enable; /* net_device message level */
158 /* All egress queues to a given net device belong to one
159 * (and the same) congestion group.
162 /* If congested, when it began. Used for performance stats. */
163 u32 congestion_start_jiffies;
164 /* Number of jiffies the Tx port was congested. */
165 u32 congested_jiffies;
166 /* Counter for the number of times the CGR
167 * entered congestion state
169 u32 cgr_congested_count;
171 /* Use a per-port CGR for ingress traffic. */
172 bool use_ingress_cgr;
173 struct qman_cgr ingress_cgr;
175 struct dpaa_buffer_layout buf_layout[2];
179 /* from dpaa_ethtool.c */
180 extern const struct ethtool_ops dpaa_ethtool_ops;
182 /* from dpaa_eth_sysfs.c */
183 void dpaa_eth_sysfs_remove(struct device *dev);
184 void dpaa_eth_sysfs_init(struct device *dev);
185 #endif /* __DPAA_H */