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-rw-r--r--drivers/net/ethernet/meta/fbnic/fbnic.h1
-rw-r--r--drivers/net/ethernet/meta/fbnic/fbnic_csr.h20
-rw-r--r--drivers/net/ethernet/meta/fbnic/fbnic_netdev.c1
-rw-r--r--drivers/net/ethernet/meta/fbnic/fbnic_rpc.c110
-rw-r--r--drivers/net/ethernet/meta/fbnic/fbnic_rpc.h4
5 files changed, 136 insertions, 0 deletions
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic.h b/drivers/net/ethernet/meta/fbnic/fbnic.h
index fec567c8fe4a..9f9cb9b3e74e 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic.h
+++ b/drivers/net/ethernet/meta/fbnic/fbnic.h
@@ -48,6 +48,7 @@ struct fbnic_dev {
struct fbnic_act_tcam act_tcam[FBNIC_RPC_TCAM_ACT_NUM_ENTRIES];
struct fbnic_mac_addr mac_addr[FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES];
u8 mac_addr_boundary;
+ u8 tce_tcam_last;
/* Number of TCQs/RCQs available on hardware */
u16 max_num_queues;
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_csr.h b/drivers/net/ethernet/meta/fbnic/fbnic_csr.h
index 79cdd231d327..dd407089ca47 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_csr.h
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_csr.h
@@ -397,6 +397,14 @@ enum {
#define FBNIC_TCE_DROP_CTRL_TTI_FRM_DROP_EN CSR_BIT(1)
#define FBNIC_TCE_DROP_CTRL_TTI_TBI_DROP_EN CSR_BIT(2)
+#define FBNIC_TCE_TCAM_IDX2DEST_MAP 0x0404A /* 0x10128 */
+#define FBNIC_TCE_TCAM_IDX2DEST_MAP_DEST_ID_0 CSR_GENMASK(3, 0)
+enum {
+ FBNIC_TCE_TCAM_DEST_MAC = 1,
+ FBNIC_TCE_TCAM_DEST_BMC = 2,
+ FBNIC_TCE_TCAM_DEST_FW = 4,
+};
+
#define FBNIC_TCE_TXB_TX_BMC_Q_CTRL 0x0404B /* 0x1012c */
#define FBNIC_TCE_TXB_BMC_DWRR_CTRL 0x0404C /* 0x10130 */
#define FBNIC_TCE_TXB_BMC_DWRR_CTRL_QUANTUM0 CSR_GENMASK(7, 0)
@@ -407,6 +415,18 @@ enum {
#define FBNIC_TCE_TXB_BMC_DWRR_CTRL_EXT 0x0404F /* 0x1013c */
#define FBNIC_CSR_END_TCE 0x04050 /* CSR section delimiter */
+/* TCE RAM registers */
+#define FBNIC_CSR_START_TCE_RAM 0x04200 /* CSR section delimiter */
+#define FBNIC_TCE_RAM_TCAM(m, n) \
+ (0x04200 + 0x8 * (n) + (m)) /* 0x10800 + 32*n + 4*m */
+#define FBNIC_TCE_RAM_TCAM_MASK CSR_GENMASK(15, 0)
+#define FBNIC_TCE_RAM_TCAM_VALUE CSR_GENMASK(31, 16)
+#define FBNIC_TCE_RAM_TCAM3(n) (0x04218 + (n)) /* 0x010860 + 4*n */
+#define FBNIC_TCE_RAM_TCAM3_DEST_MASK CSR_GENMASK(5, 3)
+#define FBNIC_TCE_RAM_TCAM3_MCQ_MASK CSR_BIT(7)
+#define FBNIC_TCE_RAM_TCAM3_VALIDATE CSR_BIT(31)
+#define FBNIC_CSR_END_TCE_RAM 0x0421F /* CSR section delimiter */
+
/* TMI registers */
#define FBNIC_CSR_START_TMI 0x04400 /* CSR section delimiter */
#define FBNIC_TMI_SOP_PROT_CTRL 0x04400 /* 0x11000 */
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_netdev.c b/drivers/net/ethernet/meta/fbnic/fbnic_netdev.c
index c08798fad203..fc7d80db5fa6 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_netdev.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_netdev.c
@@ -273,6 +273,7 @@ void __fbnic_set_rx_mode(struct net_device *netdev)
/* Write updates to hardware */
fbnic_write_rules(fbd);
fbnic_write_macda(fbd);
+ fbnic_write_tce_tcam(fbd);
}
static void fbnic_set_rx_mode(struct net_device *netdev)
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_rpc.c b/drivers/net/ethernet/meta/fbnic/fbnic_rpc.c
index 337b8b3aef2f..908c098cd59e 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_rpc.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_rpc.c
@@ -587,6 +587,116 @@ static void fbnic_clear_act_tcam(struct fbnic_dev *fbd, unsigned int idx)
wr32(fbd, FBNIC_RPC_TCAM_ACT(idx, i), 0);
}
+static void fbnic_clear_tce_tcam_entry(struct fbnic_dev *fbd, unsigned int idx)
+{
+ int i;
+
+ /* Invalidate entry and clear addr state info */
+ for (i = 0; i <= FBNIC_TCE_TCAM_WORD_LEN; i++)
+ wr32(fbd, FBNIC_TCE_RAM_TCAM(idx, i), 0);
+}
+
+static void fbnic_write_tce_tcam_dest(struct fbnic_dev *fbd, unsigned int idx,
+ struct fbnic_mac_addr *mac_addr)
+{
+ u32 dest = FBNIC_TCE_TCAM_DEST_BMC;
+ u32 idx2dest_map;
+
+ if (is_multicast_ether_addr(mac_addr->value.addr8))
+ dest |= FBNIC_TCE_TCAM_DEST_MAC;
+
+ idx2dest_map = rd32(fbd, FBNIC_TCE_TCAM_IDX2DEST_MAP);
+ idx2dest_map &= ~(FBNIC_TCE_TCAM_IDX2DEST_MAP_DEST_ID_0 << (4 * idx));
+ idx2dest_map |= dest << (4 * idx);
+
+ wr32(fbd, FBNIC_TCE_TCAM_IDX2DEST_MAP, idx2dest_map);
+}
+
+static void fbnic_write_tce_tcam_entry(struct fbnic_dev *fbd, unsigned int idx,
+ struct fbnic_mac_addr *mac_addr)
+{
+ __be16 *mask, *value;
+ int i;
+
+ mask = &mac_addr->mask.addr16[FBNIC_TCE_TCAM_WORD_LEN - 1];
+ value = &mac_addr->value.addr16[FBNIC_TCE_TCAM_WORD_LEN - 1];
+
+ for (i = 0; i < FBNIC_TCE_TCAM_WORD_LEN; i++)
+ wr32(fbd, FBNIC_TCE_RAM_TCAM(idx, i),
+ FIELD_PREP(FBNIC_TCE_RAM_TCAM_MASK, ntohs(*mask--)) |
+ FIELD_PREP(FBNIC_TCE_RAM_TCAM_VALUE, ntohs(*value--)));
+
+ wrfl(fbd);
+
+ wr32(fbd, FBNIC_TCE_RAM_TCAM3(idx), FBNIC_TCE_RAM_TCAM3_MCQ_MASK |
+ FBNIC_TCE_RAM_TCAM3_DEST_MASK |
+ FBNIC_TCE_RAM_TCAM3_VALIDATE);
+}
+
+static void __fbnic_write_tce_tcam_rev(struct fbnic_dev *fbd)
+{
+ int tcam_idx = FBNIC_TCE_TCAM_NUM_ENTRIES;
+ int mac_idx;
+
+ for (mac_idx = ARRAY_SIZE(fbd->mac_addr); mac_idx--;) {
+ struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[mac_idx];
+
+ /* Verify BMC bit is set */
+ if (!test_bit(FBNIC_MAC_ADDR_T_BMC, mac_addr->act_tcam))
+ continue;
+
+ if (!tcam_idx) {
+ dev_err(fbd->dev, "TCE TCAM overflow\n");
+ return;
+ }
+
+ tcam_idx--;
+ fbnic_write_tce_tcam_dest(fbd, tcam_idx, mac_addr);
+ fbnic_write_tce_tcam_entry(fbd, tcam_idx, mac_addr);
+ }
+
+ while (tcam_idx)
+ fbnic_clear_tce_tcam_entry(fbd, --tcam_idx);
+
+ fbd->tce_tcam_last = tcam_idx;
+}
+
+static void __fbnic_write_tce_tcam(struct fbnic_dev *fbd)
+{
+ int tcam_idx = 0;
+ int mac_idx;
+
+ for (mac_idx = 0; mac_idx < ARRAY_SIZE(fbd->mac_addr); mac_idx++) {
+ struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[mac_idx];
+
+ /* Verify BMC bit is set */
+ if (!test_bit(FBNIC_MAC_ADDR_T_BMC, mac_addr->act_tcam))
+ continue;
+
+ if (tcam_idx == FBNIC_TCE_TCAM_NUM_ENTRIES) {
+ dev_err(fbd->dev, "TCE TCAM overflow\n");
+ return;
+ }
+
+ fbnic_write_tce_tcam_dest(fbd, tcam_idx, mac_addr);
+ fbnic_write_tce_tcam_entry(fbd, tcam_idx, mac_addr);
+ tcam_idx++;
+ }
+
+ while (tcam_idx < FBNIC_TCE_TCAM_NUM_ENTRIES)
+ fbnic_clear_tce_tcam_entry(fbd, tcam_idx++);
+
+ fbd->tce_tcam_last = tcam_idx;
+}
+
+void fbnic_write_tce_tcam(struct fbnic_dev *fbd)
+{
+ if (fbd->tce_tcam_last)
+ __fbnic_write_tce_tcam_rev(fbd);
+ else
+ __fbnic_write_tce_tcam(fbd);
+}
+
void fbnic_clear_rules(struct fbnic_dev *fbd)
{
u32 dest = FIELD_PREP(FBNIC_RPC_ACT_TBL0_DEST_MASK,
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_rpc.h b/drivers/net/ethernet/meta/fbnic/fbnic_rpc.h
index d62935f722a2..0d8285fa5b45 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_rpc.h
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_rpc.h
@@ -35,6 +35,9 @@ enum {
#define FBNIC_RPC_TCAM_ACT_WORD_LEN 11
#define FBNIC_RPC_TCAM_ACT_NUM_ENTRIES 64
+#define FBNIC_TCE_TCAM_WORD_LEN 3
+#define FBNIC_TCE_TCAM_NUM_ENTRIES 8
+
struct fbnic_mac_addr {
union {
unsigned char addr8[ETH_ALEN];
@@ -186,4 +189,5 @@ static inline int __fbnic_mc_unsync(struct fbnic_mac_addr *mac_addr)
void fbnic_clear_rules(struct fbnic_dev *fbd);
void fbnic_write_rules(struct fbnic_dev *fbd);
+void fbnic_write_tce_tcam(struct fbnic_dev *fbd);
#endif /* _FBNIC_RPC_H_ */
generated by cgit (git 2.34.1) at 2025-08-11 21:54:09 +0000