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-rw-r--r--drivers/net/gianfar.c73
-rw-r--r--drivers/net/gianfar.h93
-rw-r--r--drivers/net/gianfar_ethtool.c236
3 files changed, 402 insertions, 0 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index dc9fba09b17c..086d40dd526d 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -431,6 +431,9 @@ static const struct net_device_ops gfar_netdev_ops = {
#endif
};
+unsigned int ftp_rqfpr[MAX_FILER_IDX + 1];
+unsigned int ftp_rqfcr[MAX_FILER_IDX + 1];
+
void lock_rx_qs(struct gfar_private *priv)
{
int i = 0x0;
@@ -766,6 +769,73 @@ static unsigned int reverse_bitmap(unsigned int bit_map, unsigned int max_qs)
}
return new_bit_map;
}
+
+u32 cluster_entry_per_class(struct gfar_private *priv, u32 rqfar, u32 class)
+{
+ u32 rqfpr = FPR_FILER_MASK;
+ u32 rqfcr = 0x0;
+
+ rqfar--;
+ rqfcr = RQFCR_CLE | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
+ ftp_rqfpr[rqfar] = rqfpr;
+ ftp_rqfcr[rqfar] = rqfcr;
+ gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
+
+ rqfar--;
+ rqfcr = RQFCR_CMP_NOMATCH;
+ ftp_rqfpr[rqfar] = rqfpr;
+ ftp_rqfcr[rqfar] = rqfcr;
+ gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
+
+ rqfar--;
+ rqfcr = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND;
+ rqfpr = class;
+ ftp_rqfcr[rqfar] = rqfcr;
+ ftp_rqfpr[rqfar] = rqfpr;
+ gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
+
+ rqfar--;
+ rqfcr = RQFCR_CMP_EXACT | RQFCR_PID_MASK | RQFCR_AND;
+ rqfpr = class;
+ ftp_rqfcr[rqfar] = rqfcr;
+ ftp_rqfpr[rqfar] = rqfpr;
+ gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
+
+ return rqfar;
+}
+
+static void gfar_init_filer_table(struct gfar_private *priv)
+{
+ int i = 0x0;
+ u32 rqfar = MAX_FILER_IDX;
+ u32 rqfcr = 0x0;
+ u32 rqfpr = FPR_FILER_MASK;
+
+ /* Default rule */
+ rqfcr = RQFCR_CMP_MATCH;
+ ftp_rqfcr[rqfar] = rqfcr;
+ ftp_rqfpr[rqfar] = rqfpr;
+ gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
+
+ rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6);
+ rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6 | RQFPR_UDP);
+ rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6 | RQFPR_TCP);
+ rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4);
+ rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4 | RQFPR_UDP);
+ rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4 | RQFPR_TCP);
+
+ /* cur_filer_idx indicated the fisrt non-masked rule */
+ priv->cur_filer_idx = rqfar;
+
+ /* Rest are masked rules */
+ rqfcr = RQFCR_CMP_NOMATCH;
+ for (i = 0; i < rqfar; i++) {
+ ftp_rqfcr[i] = rqfcr;
+ ftp_rqfpr[i] = rqfpr;
+ gfar_write_filer(priv, i, rqfcr, rqfpr);
+ }
+}
+
/* Set up the ethernet device structure, private data,
* and anything else we need before we start */
static int gfar_probe(struct of_device *ofdev,
@@ -1005,6 +1075,9 @@ static int gfar_probe(struct of_device *ofdev,
priv->gfargrp[i].int_name_tx[len_devname] = '\0';
}
+ /* Initialize the filer table */
+ gfar_init_filer_table(priv);
+
/* Create all the sysfs files */
gfar_init_sysfs(dev);
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index a2c1f963cdd6..44b63daa7ff3 100644
--- a/drivers/net/gianfar.h
+++ b/drivers/net/gianfar.h
@@ -381,6 +381,84 @@ extern const char gfar_driver_version[];
#define BD_LFLAG(flags) ((flags) << 16)
#define BD_LENGTH_MASK 0x0000ffff
+#define CLASS_CODE_UNRECOG 0x00
+#define CLASS_CODE_DUMMY1 0x01
+#define CLASS_CODE_ETHERTYPE1 0x02
+#define CLASS_CODE_ETHERTYPE2 0x03
+#define CLASS_CODE_USER_PROG1 0x04
+#define CLASS_CODE_USER_PROG2 0x05
+#define CLASS_CODE_USER_PROG3 0x06
+#define CLASS_CODE_USER_PROG4 0x07
+#define CLASS_CODE_TCP_IPV4 0x08
+#define CLASS_CODE_UDP_IPV4 0x09
+#define CLASS_CODE_AH_ESP_IPV4 0x0a
+#define CLASS_CODE_SCTP_IPV4 0x0b
+#define CLASS_CODE_TCP_IPV6 0x0c
+#define CLASS_CODE_UDP_IPV6 0x0d
+#define CLASS_CODE_AH_ESP_IPV6 0x0e
+#define CLASS_CODE_SCTP_IPV6 0x0f
+
+#define FPR_FILER_MASK 0xFFFFFFFF
+#define MAX_FILER_IDX 0xFF
+
+/* RQFCR register bits */
+#define RQFCR_GPI 0x80000000
+#define RQFCR_HASHTBL_Q 0x00000000
+#define RQFCR_HASHTBL_0 0x00020000
+#define RQFCR_HASHTBL_1 0x00040000
+#define RQFCR_HASHTBL_2 0x00060000
+#define RQFCR_HASHTBL_3 0x00080000
+#define RQFCR_HASH 0x00010000
+#define RQFCR_CLE 0x00000200
+#define RQFCR_RJE 0x00000100
+#define RQFCR_AND 0x00000080
+#define RQFCR_CMP_EXACT 0x00000000
+#define RQFCR_CMP_MATCH 0x00000020
+#define RQFCR_CMP_NOEXACT 0x00000040
+#define RQFCR_CMP_NOMATCH 0x00000060
+
+/* RQFCR PID values */
+#define RQFCR_PID_MASK 0x00000000
+#define RQFCR_PID_PARSE 0x00000001
+#define RQFCR_PID_ARB 0x00000002
+#define RQFCR_PID_DAH 0x00000003
+#define RQFCR_PID_DAL 0x00000004
+#define RQFCR_PID_SAH 0x00000005
+#define RQFCR_PID_SAL 0x00000006
+#define RQFCR_PID_ETY 0x00000007
+#define RQFCR_PID_VID 0x00000008
+#define RQFCR_PID_PRI 0x00000009
+#define RQFCR_PID_TOS 0x0000000A
+#define RQFCR_PID_L4P 0x0000000B
+#define RQFCR_PID_DIA 0x0000000C
+#define RQFCR_PID_SIA 0x0000000D
+#define RQFCR_PID_DPT 0x0000000E
+#define RQFCR_PID_SPT 0x0000000F
+
+/* RQFPR when PID is 0x0001 */
+#define RQFPR_HDR_GE_512 0x00200000
+#define RQFPR_LERR 0x00100000
+#define RQFPR_RAR 0x00080000
+#define RQFPR_RARQ 0x00040000
+#define RQFPR_AR 0x00020000
+#define RQFPR_ARQ 0x00010000
+#define RQFPR_EBC 0x00008000
+#define RQFPR_VLN 0x00004000
+#define RQFPR_CFI 0x00002000
+#define RQFPR_JUM 0x00001000
+#define RQFPR_IPF 0x00000800
+#define RQFPR_FIF 0x00000400
+#define RQFPR_IPV4 0x00000200
+#define RQFPR_IPV6 0x00000100
+#define RQFPR_ICC 0x00000080
+#define RQFPR_ICV 0x00000040
+#define RQFPR_TCP 0x00000020
+#define RQFPR_UDP 0x00000010
+#define RQFPR_TUC 0x00000008
+#define RQFPR_TUV 0x00000004
+#define RQFPR_PER 0x00000002
+#define RQFPR_EER 0x00000001
+
/* TxBD status field bits */
#define TXBD_READY 0x8000
#define TXBD_PADCRC 0x4000
@@ -959,6 +1037,8 @@ struct gfar_private {
unsigned int rx_stash_size;
unsigned int rx_stash_index;
+ u32 cur_filer_idx;
+
struct sk_buff_head rx_recycle;
struct vlan_group *vlgrp;
@@ -1002,6 +1082,9 @@ struct gfar_private {
struct gfar_extra_stats extra_stats;
};
+extern unsigned int ftp_rqfpr[MAX_FILER_IDX + 1];
+extern unsigned int ftp_rqfcr[MAX_FILER_IDX + 1];
+
static inline u32 gfar_read(volatile unsigned __iomem *addr)
{
u32 val;
@@ -1014,6 +1097,16 @@ static inline void gfar_write(volatile unsigned __iomem *addr, u32 val)
out_be32(addr, val);
}
+static inline void gfar_write_filer(struct gfar_private *priv,
+ unsigned int far, unsigned int fcr, unsigned int fpr)
+{
+ struct gfar __iomem *regs = priv->gfargrp[0].regs;
+
+ gfar_write(&regs->rqfar, far);
+ gfar_write(&regs->rqfcr, fcr);
+ gfar_write(&regs->rqfpr, fpr);
+}
+
extern void lock_rx_qs(struct gfar_private *priv);
extern void lock_tx_qs(struct gfar_private *priv);
extern void unlock_rx_qs(struct gfar_private *priv);
diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c
index 562f6c20f591..1010367695e4 100644
--- a/drivers/net/gianfar_ethtool.c
+++ b/drivers/net/gianfar_ethtool.c
@@ -645,6 +645,241 @@ static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
}
#endif
+static int gfar_ethflow_to_class(int flow_type, u64 *class)
+{
+ switch (flow_type) {
+ case TCP_V4_FLOW:
+ *class = CLASS_CODE_TCP_IPV4;
+ break;
+ case UDP_V4_FLOW:
+ *class = CLASS_CODE_UDP_IPV4;
+ break;
+ case AH_V4_FLOW:
+ case ESP_V4_FLOW:
+ *class = CLASS_CODE_AH_ESP_IPV4;
+ break;
+ case SCTP_V4_FLOW:
+ *class = CLASS_CODE_SCTP_IPV4;
+ break;
+ case TCP_V6_FLOW:
+ *class = CLASS_CODE_TCP_IPV6;
+ break;
+ case UDP_V6_FLOW:
+ *class = CLASS_CODE_UDP_IPV6;
+ break;
+ case AH_V6_FLOW:
+ case ESP_V6_FLOW:
+ *class = CLASS_CODE_AH_ESP_IPV6;
+ break;
+ case SCTP_V6_FLOW:
+ *class = CLASS_CODE_SCTP_IPV6;
+ break;
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
+static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
+{
+ u32 fcr = 0x0, fpr = FPR_FILER_MASK;
+
+ if (ethflow & RXH_L2DA) {
+ fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
+ RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
+ ftp_rqfpr[priv->cur_filer_idx] = fpr;
+ ftp_rqfcr[priv->cur_filer_idx] = fcr;
+ gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+
+ fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
+ RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
+ ftp_rqfpr[priv->cur_filer_idx] = fpr;
+ ftp_rqfcr[priv->cur_filer_idx] = fcr;
+ gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+ }
+
+ if (ethflow & RXH_VLAN) {
+ fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
+ RQFCR_AND | RQFCR_HASHTBL_0;
+ gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
+ ftp_rqfpr[priv->cur_filer_idx] = fpr;
+ ftp_rqfcr[priv->cur_filer_idx] = fcr;
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+ }
+
+ if (ethflow & RXH_IP_SRC) {
+ fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
+ RQFCR_AND | RQFCR_HASHTBL_0;
+ ftp_rqfpr[priv->cur_filer_idx] = fpr;
+ ftp_rqfcr[priv->cur_filer_idx] = fcr;
+ gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+ }
+
+ if (ethflow & (RXH_IP_DST)) {
+ fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
+ RQFCR_AND | RQFCR_HASHTBL_0;
+ ftp_rqfpr[priv->cur_filer_idx] = fpr;
+ ftp_rqfcr[priv->cur_filer_idx] = fcr;
+ gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+ }
+
+ if (ethflow & RXH_L3_PROTO) {
+ fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
+ RQFCR_AND | RQFCR_HASHTBL_0;
+ ftp_rqfpr[priv->cur_filer_idx] = fpr;
+ ftp_rqfcr[priv->cur_filer_idx] = fcr;
+ gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+ }
+
+ if (ethflow & RXH_L4_B_0_1) {
+ fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
+ RQFCR_AND | RQFCR_HASHTBL_0;
+ ftp_rqfpr[priv->cur_filer_idx] = fpr;
+ ftp_rqfcr[priv->cur_filer_idx] = fcr;
+ gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+ }
+
+ if (ethflow & RXH_L4_B_2_3) {
+ fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
+ RQFCR_AND | RQFCR_HASHTBL_0;
+ ftp_rqfpr[priv->cur_filer_idx] = fpr;
+ ftp_rqfcr[priv->cur_filer_idx] = fcr;
+ gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+ }
+}
+
+static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, u64 class)
+{
+ unsigned int last_rule_idx = priv->cur_filer_idx;
+ unsigned int cmp_rqfpr;
+ unsigned int local_rqfpr[MAX_FILER_IDX + 1];
+ unsigned int local_rqfcr[MAX_FILER_IDX + 1];
+ int i = 0x0, k = 0x0;
+ int j = MAX_FILER_IDX, l = 0x0;
+
+ switch (class) {
+ case TCP_V4_FLOW:
+ cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
+ break;
+ case UDP_V4_FLOW:
+ cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
+ break;
+ case TCP_V6_FLOW:
+ cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
+ break;
+ case UDP_V6_FLOW:
+ cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
+ break;
+ case IPV4_FLOW:
+ cmp_rqfpr = RQFPR_IPV4;
+ case IPV6_FLOW:
+ cmp_rqfpr = RQFPR_IPV6;
+ break;
+ default:
+ printk(KERN_ERR "Right now this class is not supported\n");
+ return 0;
+ }
+
+ for (i = 0; i < MAX_FILER_IDX + 1; i++) {
+ local_rqfpr[j] = ftp_rqfpr[i];
+ local_rqfcr[j] = ftp_rqfcr[i];
+ j--;
+ if ((ftp_rqfcr[i] == (RQFCR_PID_PARSE |
+ RQFCR_CLE |RQFCR_AND)) &&
+ (ftp_rqfpr[i] == cmp_rqfpr))
+ break;
+ }
+
+ if (i == MAX_FILER_IDX + 1) {
+ printk(KERN_ERR "No parse rule found, ");
+ printk(KERN_ERR "can't create hash rules\n");
+ return 0;
+ }
+
+ /* If a match was found, then it begins the starting of a cluster rule
+ * if it was already programmed, we need to overwrite these rules
+ */
+ for (l = i+1; l < MAX_FILER_IDX; l++) {
+ if ((ftp_rqfcr[l] & RQFCR_CLE) &&
+ !(ftp_rqfcr[l] & RQFCR_AND)) {
+ ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
+ RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
+ ftp_rqfpr[l] = FPR_FILER_MASK;
+ gfar_write_filer(priv, l, ftp_rqfcr[l], ftp_rqfpr[l]);
+ break;
+ }
+
+ if (!(ftp_rqfcr[l] & RQFCR_CLE) && (ftp_rqfcr[l] & RQFCR_AND))
+ continue;
+ else {
+ local_rqfpr[j] = ftp_rqfpr[l];
+ local_rqfcr[j] = ftp_rqfcr[l];
+ j--;
+ }
+ }
+
+ priv->cur_filer_idx = l - 1;
+ last_rule_idx = l;
+
+ /* hash rules */
+ ethflow_to_filer_rules(priv, ethflow);
+
+ /* Write back the popped out rules again */
+ for (k = j+1; k < MAX_FILER_IDX; k++) {
+ ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
+ ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
+ gfar_write_filer(priv, priv->cur_filer_idx,
+ local_rqfcr[k], local_rqfpr[k]);
+ if (!priv->cur_filer_idx)
+ break;
+ priv->cur_filer_idx = priv->cur_filer_idx - 1;
+ }
+
+ return 1;
+}
+
+static int gfar_set_hash_opts(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
+{
+ u64 class;
+
+ if (!gfar_ethflow_to_class(cmd->flow_type, &class))
+ return -EINVAL;
+
+ if (class < CLASS_CODE_USER_PROG1 ||
+ class > CLASS_CODE_SCTP_IPV6)
+ return -EINVAL;
+
+ /* write the filer rules here */
+ if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
+ return -1;
+
+ return 0;
+}
+
+static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+ struct gfar_private *priv = netdev_priv(dev);
+ int ret = 0;
+
+ switch(cmd->cmd) {
+ case ETHTOOL_SRXFH:
+ ret = gfar_set_hash_opts(priv, cmd);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
const struct ethtool_ops gfar_ethtool_ops = {
.get_settings = gfar_gsettings,
.set_settings = gfar_ssettings,
@@ -670,4 +905,5 @@ const struct ethtool_ops gfar_ethtool_ops = {
.get_wol = gfar_get_wol,
.set_wol = gfar_set_wol,
#endif
+ .set_rxnfc = gfar_set_nfc,
};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.