* [PATCH net-next v2 1/2] net: mscc: ocelot: Add support for tcam
2019-05-29 10:26 [PATCH net-next v2 0/2] Add hw offload of TC flower on MSCC Ocelot Horatiu Vultur
@ 2019-05-29 10:26 ` Horatiu Vultur
2019-05-29 10:26 ` [PATCH net-next v2 2/2] net: mscc: ocelot: Hardware ofload for tc flower filter Horatiu Vultur
1 sibling, 0 replies; 5+ messages in thread
From: Horatiu Vultur @ 2019-05-29 10:26 UTC (permalink / raw)
Cc: Horatiu Vultur, Alexandre Belloni,
Microchip Linux Driver Support, Rob Herring, Mark Rutland,
Ralf Baechle, Paul Burton, James Hogan, David S. Miller,
linux-mips, devicetree, linux-kernel, netdev
Add ACL support using the TCAM. Using ACL it is possible to create rules
in hardware to filter/redirect frames.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
arch/mips/boot/dts/mscc/ocelot.dtsi | 5 +-
drivers/net/ethernet/mscc/Makefile | 2 +-
drivers/net/ethernet/mscc/ocelot.c | 13 +
drivers/net/ethernet/mscc/ocelot.h | 8 +
drivers/net/ethernet/mscc/ocelot_ace.c | 777 +++++++++++++++++++++++++++++++
drivers/net/ethernet/mscc/ocelot_ace.h | 227 +++++++++
drivers/net/ethernet/mscc/ocelot_board.c | 1 +
drivers/net/ethernet/mscc/ocelot_regs.c | 11 +
drivers/net/ethernet/mscc/ocelot_s2.h | 64 +++
drivers/net/ethernet/mscc/ocelot_vcap.h | 403 ++++++++++++++++
10 files changed, 1508 insertions(+), 3 deletions(-)
create mode 100644 drivers/net/ethernet/mscc/ocelot_ace.c
create mode 100644 drivers/net/ethernet/mscc/ocelot_ace.h
create mode 100644 drivers/net/ethernet/mscc/ocelot_s2.h
create mode 100644 drivers/net/ethernet/mscc/ocelot_vcap.h
diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi
index 90c60d4..33ae74a 100644
--- a/arch/mips/boot/dts/mscc/ocelot.dtsi
+++ b/arch/mips/boot/dts/mscc/ocelot.dtsi
@@ -132,11 +132,12 @@
<0x1270000 0x100>,
<0x1280000 0x100>,
<0x1800000 0x80000>,
- <0x1880000 0x10000>;
+ <0x1880000 0x10000>,
+ <0x1060000 0x10000>;
reg-names = "sys", "rew", "qs", "port0", "port1",
"port2", "port3", "port4", "port5", "port6",
"port7", "port8", "port9", "port10", "qsys",
- "ana";
+ "ana", "s2";
interrupts = <21 22>;
interrupt-names = "xtr", "inj";
diff --git a/drivers/net/ethernet/mscc/Makefile b/drivers/net/ethernet/mscc/Makefile
index 5e694dc..bf4a710 100644
--- a/drivers/net/ethernet/mscc/Makefile
+++ b/drivers/net/ethernet/mscc/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: (GPL-2.0 OR MIT)
obj-$(CONFIG_MSCC_OCELOT_SWITCH) += mscc_ocelot_common.o
mscc_ocelot_common-y := ocelot.o ocelot_io.o
-mscc_ocelot_common-y += ocelot_regs.o ocelot_tc.o ocelot_police.o
+mscc_ocelot_common-y += ocelot_regs.o ocelot_tc.o ocelot_police.o ocelot_ace.o
obj-$(CONFIG_MSCC_OCELOT_SWITCH_OCELOT) += ocelot_board.o
diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index ab7d9eb..0e5a387 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -22,6 +22,7 @@
#include <net/switchdev.h>
#include "ocelot.h"
+#include "ocelot_ace.h"
#define TABLE_UPDATE_SLEEP_US 10
#define TABLE_UPDATE_TIMEOUT_US 100000
@@ -130,6 +131,13 @@ static void ocelot_mact_init(struct ocelot *ocelot)
ocelot_write(ocelot, MACACCESS_CMD_INIT, ANA_TABLES_MACACCESS);
}
+static void ocelot_vcap_enable(struct ocelot *ocelot, struct ocelot_port *port)
+{
+ ocelot_write_gix(ocelot, ANA_PORT_VCAP_S2_CFG_S2_ENA |
+ ANA_PORT_VCAP_S2_CFG_S2_IP6_CFG(0xa),
+ ANA_PORT_VCAP_S2_CFG, port->chip_port);
+}
+
static inline u32 ocelot_vlant_read_vlanaccess(struct ocelot *ocelot)
{
return ocelot_read(ocelot, ANA_TABLES_VLANACCESS);
@@ -1689,6 +1697,9 @@ int ocelot_probe_port(struct ocelot *ocelot, u8 port,
/* Basic L2 initialization */
ocelot_vlan_port_apply(ocelot, ocelot_port);
+ /* Enable vcap lookups */
+ ocelot_vcap_enable(ocelot, ocelot_port);
+
return 0;
err_register_netdev:
@@ -1723,6 +1734,7 @@ int ocelot_init(struct ocelot *ocelot)
ocelot_mact_init(ocelot);
ocelot_vlan_init(ocelot);
+ ocelot_ace_init(ocelot);
for (port = 0; port < ocelot->num_phys_ports; port++) {
/* Clear all counters (5 groups) */
@@ -1835,6 +1847,7 @@ void ocelot_deinit(struct ocelot *ocelot)
{
destroy_workqueue(ocelot->stats_queue);
mutex_destroy(&ocelot->stats_lock);
+ ocelot_ace_deinit();
}
EXPORT_SYMBOL(ocelot_deinit);
diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h
index 9514979..3430174 100644
--- a/drivers/net/ethernet/mscc/ocelot.h
+++ b/drivers/net/ethernet/mscc/ocelot.h
@@ -69,6 +69,7 @@ enum ocelot_target {
QSYS,
REW,
SYS,
+ S2,
HSIO,
TARGET_MAX,
};
@@ -335,6 +336,13 @@ enum ocelot_reg {
SYS_CM_DATA_RD,
SYS_CM_OP,
SYS_CM_DATA,
+ S2_CORE_UPDATE_CTRL = S2 << TARGET_OFFSET,
+ S2_CORE_MV_CFG,
+ S2_CACHE_ENTRY_DAT,
+ S2_CACHE_MASK_DAT,
+ S2_CACHE_ACTION_DAT,
+ S2_CACHE_CNT_DAT,
+ S2_CACHE_TG_DAT,
};
enum ocelot_regfield {
diff --git a/drivers/net/ethernet/mscc/ocelot_ace.c b/drivers/net/ethernet/mscc/ocelot_ace.c
new file mode 100644
index 0000000..afbeb83
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot_ace.c
@@ -0,0 +1,777 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Microsemi Ocelot Switch driver
+ * Copyright (c) 2019 Microsemi Corporation
+ */
+
+#include <linux/iopoll.h>
+#include <linux/proc_fs.h>
+
+#include "ocelot_ace.h"
+#include "ocelot_vcap.h"
+#include "ocelot_s2.h"
+
+#define OCELOT_POLICER_DISCARD 0x17f
+
+static struct ocelot_acl_block *acl_block;
+
+struct vcap_props {
+ const char *name; /* Symbolic name */
+ u16 tg_width; /* Type-group width (in bits) */
+ u16 sw_count; /* Sub word count */
+ u16 entry_count; /* Entry count */
+ u16 entry_words; /* Number of entry words */
+ u16 entry_width; /* Entry width (in bits) */
+ u16 action_count; /* Action count */
+ u16 action_words; /* Number of action words */
+ u16 action_width; /* Action width (in bits) */
+ u16 action_type_width; /* Action type width (in bits) */
+ struct {
+ u16 width; /* Action type width (in bits) */
+ u16 count; /* Action type sub word count */
+ } action_table[2];
+ u16 counter_words; /* Number of counter words */
+ u16 counter_width; /* Counter width (in bits) */
+};
+
+#define ENTRY_WIDTH 32
+#define BITS_TO_32BIT(x) (1 + (((x) - 1) / ENTRY_WIDTH))
+
+static const struct vcap_props vcap_is2 = {
+ .name = "IS2",
+ .tg_width = 2,
+ .sw_count = 4,
+ .entry_count = VCAP_IS2_CNT,
+ .entry_words = BITS_TO_32BIT(VCAP_IS2_ENTRY_WIDTH),
+ .entry_width = VCAP_IS2_ENTRY_WIDTH,
+ .action_count = (VCAP_IS2_CNT + VCAP_PORT_CNT + 2),
+ .action_words = BITS_TO_32BIT(VCAP_IS2_ACTION_WIDTH),
+ .action_width = (VCAP_IS2_ACTION_WIDTH),
+ .action_type_width = 1,
+ .action_table = {
+ {
+ .width = (IS2_AO_ACL_ID + IS2_AL_ACL_ID),
+ .count = 2
+ },
+ {
+ .width = 6,
+ .count = 4
+ },
+ },
+ .counter_words = BITS_TO_32BIT(4 * ENTRY_WIDTH),
+ .counter_width = ENTRY_WIDTH,
+};
+
+enum vcap_sel {
+ VCAP_SEL_ENTRY = 0x1,
+ VCAP_SEL_ACTION = 0x2,
+ VCAP_SEL_COUNTER = 0x4,
+ VCAP_SEL_ALL = 0x7,
+};
+
+enum vcap_cmd {
+ VCAP_CMD_WRITE = 0, /* Copy from Cache to TCAM */
+ VCAP_CMD_READ = 1, /* Copy from TCAM to Cache */
+ VCAP_CMD_MOVE_UP = 2, /* Move <count> up */
+ VCAP_CMD_MOVE_DOWN = 3, /* Move <count> down */
+ VCAP_CMD_INITIALIZE = 4, /* Write all (from cache) */
+};
+
+#define VCAP_ENTRY_WIDTH 12 /* Max entry width (32bit words) */
+#define VCAP_COUNTER_WIDTH 4 /* Max counter width (32bit words) */
+
+struct vcap_data {
+ u32 entry[VCAP_ENTRY_WIDTH]; /* ENTRY_DAT */
+ u32 mask[VCAP_ENTRY_WIDTH]; /* MASK_DAT */
+ u32 action[VCAP_ENTRY_WIDTH]; /* ACTION_DAT */
+ u32 counter[VCAP_COUNTER_WIDTH]; /* CNT_DAT */
+ u32 tg; /* TG_DAT */
+ u32 type; /* Action type */
+ u32 tg_sw; /* Current type-group */
+ u32 cnt; /* Current counter */
+ u32 key_offset; /* Current entry offset */
+ u32 action_offset; /* Current action offset */
+ u32 counter_offset; /* Current counter offset */
+ u32 tg_value; /* Current type-group value */
+ u32 tg_mask; /* Current type-group mask */
+} vcap_data_t;
+
+static u32 vcap_s2_read_update_ctrl(struct ocelot *oc)
+{
+ return ocelot_read(oc, S2_CORE_UPDATE_CTRL);
+}
+
+static void vcap_cmd(struct ocelot *oc, u16 ix, int cmd, int sel)
+{
+ u32 value = (S2_CORE_UPDATE_CTRL_UPDATE_CMD(cmd) |
+ S2_CORE_UPDATE_CTRL_UPDATE_ADDR(ix) |
+ S2_CORE_UPDATE_CTRL_UPDATE_SHOT);
+ int rc;
+
+ if ((sel & VCAP_SEL_ENTRY) && ix >= vcap_is2.entry_count)
+ return;
+
+ if (!(sel & VCAP_SEL_ENTRY))
+ value |= S2_CORE_UPDATE_CTRL_UPDATE_ENTRY_DIS;
+
+ if (!(sel & VCAP_SEL_ACTION))
+ value |= S2_CORE_UPDATE_CTRL_UPDATE_ACTION_DIS;
+
+ if (!(sel & VCAP_SEL_COUNTER))
+ value |= S2_CORE_UPDATE_CTRL_UPDATE_CNT_DIS;
+
+ ocelot_write(oc, value, S2_CORE_UPDATE_CTRL);
+ rc = readx_poll_timeout(vcap_s2_read_update_ctrl, oc, value,
+ (value & S2_CORE_UPDATE_CTRL_UPDATE_SHOT) == 0,
+ 10, 100000);
+}
+
+/* Convert from 0-based row to VCAP entry row and run command */
+static void vcap_row_cmd(struct ocelot *oc, u32 row, int cmd, int sel)
+{
+ vcap_cmd(oc, vcap_is2.entry_count - row - 1, cmd, sel);
+}
+
+static void vcap_entry2cache(struct ocelot *oc, struct vcap_data *data)
+{
+ u32 i;
+
+ for (i = 0; i < vcap_is2.entry_words; i++) {
+ ocelot_write_rix(oc, data->entry[i], S2_CACHE_ENTRY_DAT, i);
+ ocelot_write_rix(oc, ~data->mask[i], S2_CACHE_MASK_DAT, i);
+ }
+ ocelot_write(oc, data->tg, S2_CACHE_TG_DAT);
+}
+
+static void vcap_cache2entry(struct ocelot *oc, struct vcap_data *data)
+{
+ u32 i;
+
+ for (i = 0; i < vcap_is2.entry_words; i++) {
+ data->entry[i] = ocelot_read_rix(oc, S2_CACHE_ENTRY_DAT, i);
+ // Invert mask
+ data->mask[i] = ~ocelot_read_rix(oc, S2_CACHE_MASK_DAT, i);
+ }
+ data->tg = ocelot_read(oc, S2_CACHE_TG_DAT);
+}
+
+static void vcap_action2cache(struct ocelot *oc, struct vcap_data *data)
+{
+ u32 i, width, mask;
+
+ /* Encode action type */
+ width = vcap_is2.action_type_width;
+ if (width) {
+ mask = GENMASK(width, 0);
+ data->action[0] = ((data->action[0] & ~mask) | data->type);
+ }
+
+ for (i = 0; i < vcap_is2.action_words; i++)
+ ocelot_write_rix(oc, data->action[i], S2_CACHE_ACTION_DAT, i);
+
+ for (i = 0; i < vcap_is2.counter_words; i++)
+ ocelot_write_rix(oc, data->counter[i], S2_CACHE_CNT_DAT, i);
+}
+
+static void vcap_cache2action(struct ocelot *oc, struct vcap_data *data)
+{
+ u32 i, width;
+
+ for (i = 0; i < vcap_is2.action_words; i++)
+ data->action[i] = ocelot_read_rix(oc, S2_CACHE_ACTION_DAT, i);
+
+ for (i = 0; i < vcap_is2.counter_words; i++)
+ data->counter[i] = ocelot_read_rix(oc, S2_CACHE_CNT_DAT, i);
+
+ /* Extract action type */
+ width = vcap_is2.action_type_width;
+ data->type = (width ? (data->action[0] & GENMASK(width, 0)) : 0);
+}
+
+/* Calculate offsets for entry */
+static void is2_data_get(struct vcap_data *data, int ix)
+{
+ u32 i, col, offset, count, cnt, base, width = vcap_is2.tg_width;
+
+ count = (data->tg_sw == VCAP_TG_HALF ? 2 : 4);
+ col = (ix % 2);
+ cnt = (vcap_is2.sw_count / count);
+ base = (vcap_is2.sw_count - col * cnt - cnt);
+ data->tg_value = 0;
+ data->tg_mask = 0;
+ for (i = 0; i < cnt; i++) {
+ offset = ((base + i) * width);
+ data->tg_value |= (data->tg_sw << offset);
+ data->tg_mask |= GENMASK(offset + width - 1, offset);
+ }
+
+ /* Calculate key/action/counter offsets */
+ col = (count - col - 1);
+ data->key_offset = (base * vcap_is2.entry_width) / vcap_is2.sw_count;
+ data->counter_offset = (cnt * col * vcap_is2.counter_width);
+ i = data->type;
+ width = vcap_is2.action_table[i].width;
+ cnt = vcap_is2.action_table[i].count;
+ data->action_offset =
+ (((cnt * col * width) / count) + vcap_is2.action_type_width);
+}
+
+static void vcap_data_set(u32 *data, u32 offset, u32 len, u32 value)
+{
+ u32 i, v, m;
+
+ for (i = 0; i < len; i++, offset++) {
+ v = data[offset / ENTRY_WIDTH];
+ m = (1 << (offset % ENTRY_WIDTH));
+ if (value & (1 << i))
+ v |= m;
+ else
+ v &= ~m;
+ data[offset / ENTRY_WIDTH] = v;
+ }
+}
+
+static u32 vcap_data_get(u32 *data, u32 offset, u32 len)
+{
+ u32 i, v, m, value = 0;
+
+ for (i = 0; i < len; i++, offset++) {
+ v = data[offset / ENTRY_WIDTH];
+ m = (1 << (offset % ENTRY_WIDTH));
+ if (v & m)
+ value |= (1 << i);
+ }
+ return value;
+}
+
+static void vcap_key_set(struct vcap_data *data, u32 offset, u32 width,
+ u32 value, u32 mask)
+{
+ vcap_data_set(data->entry, offset + data->key_offset, width, value);
+ vcap_data_set(data->mask, offset + data->key_offset, width, mask);
+}
+
+static void vcap_key_bytes_set(struct vcap_data *data, u32 offset, u8 *val,
+ u8 *msk, u32 count)
+{
+ u32 i, j, n = 0, value = 0, mask = 0;
+
+ /* Data wider than 32 bits are split up in chunks of maximum 32 bits.
+ * The 32 LSB of the data are written to the 32 MSB of the TCAM.
+ */
+ offset += (count * 8);
+ for (i = 0; i < count; i++) {
+ j = (count - i - 1);
+ value += (val[j] << n);
+ mask += (msk[j] << n);
+ n += 8;
+ if (n == ENTRY_WIDTH || (i + 1) == count) {
+ offset -= n;
+ vcap_key_set(data, offset, n, value, mask);
+ n = 0;
+ value = 0;
+ mask = 0;
+ }
+ }
+}
+
+static void vcap_key_l4_port_set(struct vcap_data *data, u32 offset,
+ struct ocelot_vcap_udp_tcp *port)
+{
+ vcap_key_set(data, offset, 16, port->value, port->mask);
+}
+
+static void vcap_key_bit_set(struct vcap_data *data, u32 offset,
+ enum ocelot_vcap_bit val)
+{
+ vcap_key_set(data, offset, 1, val == OCELOT_VCAP_BIT_1 ? 1 : 0,
+ val == OCELOT_VCAP_BIT_ANY ? 0 : 1);
+}
+
+#define VCAP_KEY_SET(fld, val, msk) \
+ vcap_key_set(&data, IS2_HKO_##fld, IS2_HKL_##fld, val, msk)
+#define VCAP_KEY_ANY_SET(fld) \
+ vcap_key_set(&data, IS2_HKO_##fld, IS2_HKL_##fld, 0, 0)
+#define VCAP_KEY_BIT_SET(fld, val) vcap_key_bit_set(&data, IS2_HKO_##fld, val)
+#define VCAP_KEY_BYTES_SET(fld, val, msk) \
+ vcap_key_bytes_set(&data, IS2_HKO_##fld, val, msk, IS2_HKL_##fld / 8)
+
+static void vcap_action_set(struct vcap_data *data, u32 offset, u32 width,
+ u32 value)
+{
+ vcap_data_set(data->action, offset + data->action_offset, width, value);
+}
+
+#define VCAP_ACT_SET(fld, val) \
+ vcap_action_set(data, IS2_AO_##fld, IS2_AL_##fld, val)
+
+static void is2_action_set(struct vcap_data *data,
+ enum ocelot_ace_action action)
+{
+ switch (action) {
+ case OCELOT_ACL_ACTION_DROP:
+ VCAP_ACT_SET(PORT_MASK, 0x0);
+ VCAP_ACT_SET(MASK_MODE, 0x1);
+ VCAP_ACT_SET(POLICE_ENA, 0x1);
+ VCAP_ACT_SET(POLICE_IDX, OCELOT_POLICER_DISCARD);
+ VCAP_ACT_SET(CPU_QU_NUM, 0x0);
+ VCAP_ACT_SET(CPU_COPY_ENA, 0x0);
+ break;
+ case OCELOT_ACL_ACTION_TRAP:
+ VCAP_ACT_SET(PORT_MASK, 0x0);
+ VCAP_ACT_SET(MASK_MODE, 0x0);
+ VCAP_ACT_SET(POLICE_ENA, 0x0);
+ VCAP_ACT_SET(POLICE_IDX, 0x0);
+ VCAP_ACT_SET(CPU_QU_NUM, 0x0);
+ VCAP_ACT_SET(CPU_COPY_ENA, 0x1);
+ break;
+ }
+}
+
+static void is2_entry_set(struct ocelot *ocelot, int ix,
+ struct ocelot_ace_rule *ace)
+{
+ u32 val, msk, type, type_mask = 0xf, i, count;
+ struct ocelot_ace_vlan *tag = &ace->vlan;
+ struct ocelot_vcap_u64 payload = { 0 };
+ struct vcap_data data = { 0 };
+ int row = (ix / 2);
+
+ /* Read row */
+ vcap_row_cmd(ocelot, row, VCAP_CMD_READ, VCAP_SEL_ALL);
+ vcap_cache2entry(ocelot, &data);
+ vcap_cache2action(ocelot, &data);
+
+ data.tg_sw = VCAP_TG_HALF;
+ is2_data_get(&data, ix);
+ data.tg = (data.tg & ~data.tg_mask);
+ if (ace->prio != 0)
+ data.tg |= data.tg_value;
+
+ data.type = IS2_ACTION_TYPE_NORMAL;
+
+ VCAP_KEY_ANY_SET(PAG);
+ VCAP_KEY_SET(IGR_PORT_MASK, 0, ~BIT(ace->chip_port));
+ VCAP_KEY_BIT_SET(FIRST, OCELOT_VCAP_BIT_1);
+ VCAP_KEY_BIT_SET(HOST_MATCH, OCELOT_VCAP_BIT_ANY);
+ VCAP_KEY_BIT_SET(L2_MC, ace->dmac_mc);
+ VCAP_KEY_BIT_SET(L2_BC, ace->dmac_bc);
+ VCAP_KEY_BIT_SET(VLAN_TAGGED, tag->tagged);
+ VCAP_KEY_SET(VID, tag->vid.value, tag->vid.mask);
+ VCAP_KEY_SET(PCP, tag->pcp.value[0], tag->pcp.mask[0]);
+ VCAP_KEY_BIT_SET(DEI, tag->dei);
+
+ switch (ace->type) {
+ case OCELOT_ACE_TYPE_ETYPE: {
+ struct ocelot_ace_frame_etype *etype = &ace->frame.etype;
+
+ type = IS2_TYPE_ETYPE;
+ VCAP_KEY_BYTES_SET(L2_DMAC, etype->dmac.value,
+ etype->dmac.mask);
+ VCAP_KEY_BYTES_SET(L2_SMAC, etype->smac.value,
+ etype->smac.mask);
+ VCAP_KEY_BYTES_SET(MAC_ETYPE_ETYPE, etype->etype.value,
+ etype->etype.mask);
+ VCAP_KEY_ANY_SET(MAC_ETYPE_L2_PAYLOAD); // Clear unused bits
+ vcap_key_bytes_set(&data, IS2_HKO_MAC_ETYPE_L2_PAYLOAD,
+ etype->data.value, etype->data.mask, 2);
+ break;
+ }
+ case OCELOT_ACE_TYPE_LLC: {
+ struct ocelot_ace_frame_llc *llc = &ace->frame.llc;
+
+ type = IS2_TYPE_LLC;
+ VCAP_KEY_BYTES_SET(L2_DMAC, llc->dmac.value, llc->dmac.mask);
+ VCAP_KEY_BYTES_SET(L2_SMAC, llc->smac.value, llc->smac.mask);
+ for (i = 0; i < 4; i++) {
+ payload.value[i] = llc->llc.value[i];
+ payload.mask[i] = llc->llc.mask[i];
+ }
+ VCAP_KEY_BYTES_SET(MAC_LLC_L2_LLC, payload.value, payload.mask);
+ break;
+ }
+ case OCELOT_ACE_TYPE_SNAP: {
+ struct ocelot_ace_frame_snap *snap = &ace->frame.snap;
+
+ type = IS2_TYPE_SNAP;
+ VCAP_KEY_BYTES_SET(L2_DMAC, snap->dmac.value, snap->dmac.mask);
+ VCAP_KEY_BYTES_SET(L2_SMAC, snap->smac.value, snap->smac.mask);
+ VCAP_KEY_BYTES_SET(MAC_SNAP_L2_SNAP,
+ ace->frame.snap.snap.value,
+ ace->frame.snap.snap.mask);
+ break;
+ }
+ case OCELOT_ACE_TYPE_ARP: {
+ struct ocelot_ace_frame_arp *arp = &ace->frame.arp;
+
+ type = IS2_TYPE_ARP;
+ VCAP_KEY_BYTES_SET(MAC_ARP_L2_SMAC, arp->smac.value,
+ arp->smac.mask);
+ VCAP_KEY_BIT_SET(MAC_ARP_ARP_ADDR_SPACE_OK, arp->ethernet);
+ VCAP_KEY_BIT_SET(MAC_ARP_ARP_PROTO_SPACE_OK, arp->ip);
+ VCAP_KEY_BIT_SET(MAC_ARP_ARP_LEN_OK, arp->length);
+ VCAP_KEY_BIT_SET(MAC_ARP_ARP_TGT_MATCH, arp->dmac_match);
+ VCAP_KEY_BIT_SET(MAC_ARP_ARP_SENDER_MATCH, arp->smac_match);
+ VCAP_KEY_BIT_SET(MAC_ARP_ARP_OPCODE_UNKNOWN, arp->unknown);
+
+ /* OPCODE is inverse, bit 0 is reply flag, bit 1 is RARP flag */
+ val = ((arp->req == OCELOT_VCAP_BIT_0 ? 1 : 0) |
+ (arp->arp == OCELOT_VCAP_BIT_0 ? 2 : 0));
+ msk = ((arp->req == OCELOT_VCAP_BIT_ANY ? 0 : 1) |
+ (arp->arp == OCELOT_VCAP_BIT_ANY ? 0 : 2));
+ VCAP_KEY_SET(MAC_ARP_ARP_OPCODE, val, msk);
+ vcap_key_bytes_set(&data, IS2_HKO_MAC_ARP_L3_IP4_DIP,
+ arp->dip.value.addr, arp->dip.mask.addr, 4);
+ vcap_key_bytes_set(&data, IS2_HKO_MAC_ARP_L3_IP4_SIP,
+ arp->sip.value.addr, arp->sip.mask.addr, 4);
+ VCAP_KEY_ANY_SET(MAC_ARP_DIP_EQ_SIP);
+ break;
+ }
+ case OCELOT_ACE_TYPE_IPV4:
+ case OCELOT_ACE_TYPE_IPV6: {
+ enum ocelot_vcap_bit sip_eq_dip, sport_eq_dport, seq_zero, tcp;
+ enum ocelot_vcap_bit ttl, fragment, options, tcp_ack, tcp_urg;
+ enum ocelot_vcap_bit tcp_fin, tcp_syn, tcp_rst, tcp_psh;
+ struct ocelot_ace_frame_ipv4 *ipv4 = NULL;
+ struct ocelot_ace_frame_ipv6 *ipv6 = NULL;
+ struct ocelot_vcap_udp_tcp *sport, *dport;
+ struct ocelot_vcap_ipv4 sip, dip;
+ struct ocelot_vcap_u8 proto, ds;
+ struct ocelot_vcap_u48 *ip_data;
+
+ if (ace->type == OCELOT_ACE_TYPE_IPV4) {
+ ipv4 = &ace->frame.ipv4;
+ ttl = ipv4->ttl;
+ fragment = ipv4->fragment;
+ options = ipv4->options;
+ proto = ipv4->proto;
+ ds = ipv4->ds;
+ ip_data = &ipv4->data;
+ sip = ipv4->sip;
+ dip = ipv4->dip;
+ sport = &ipv4->sport;
+ dport = &ipv4->dport;
+ tcp_fin = ipv4->tcp_fin;
+ tcp_syn = ipv4->tcp_syn;
+ tcp_rst = ipv4->tcp_rst;
+ tcp_psh = ipv4->tcp_psh;
+ tcp_ack = ipv4->tcp_ack;
+ tcp_urg = ipv4->tcp_urg;
+ sip_eq_dip = ipv4->sip_eq_dip;
+ sport_eq_dport = ipv4->sport_eq_dport;
+ seq_zero = ipv4->seq_zero;
+ } else {
+ ipv6 = &ace->frame.ipv6;
+ ttl = ipv6->ttl;
+ fragment = OCELOT_VCAP_BIT_ANY;
+ options = OCELOT_VCAP_BIT_ANY;
+ proto = ipv6->proto;
+ ds = ipv6->ds;
+ ip_data = &ipv6->data;
+ for (i = 0; i < 8; i++) {
+ val = ipv6->sip.value[i + 8];
+ msk = ipv6->sip.mask[i + 8];
+ if (i < 4) {
+ dip.value.addr[i] = val;
+ dip.mask.addr[i] = msk;
+ } else {
+ sip.value.addr[i - 4] = val;
+ sip.mask.addr[i - 4] = msk;
+ }
+ }
+ sport = &ipv6->sport;
+ dport = &ipv6->dport;
+ tcp_fin = ipv6->tcp_fin;
+ tcp_syn = ipv6->tcp_syn;
+ tcp_rst = ipv6->tcp_rst;
+ tcp_psh = ipv6->tcp_psh;
+ tcp_ack = ipv6->tcp_ack;
+ tcp_urg = ipv6->tcp_urg;
+ sip_eq_dip = ipv6->sip_eq_dip;
+ sport_eq_dport = ipv6->sport_eq_dport;
+ seq_zero = ipv6->seq_zero;
+ }
+
+ VCAP_KEY_BIT_SET(IP4,
+ ipv4 ? OCELOT_VCAP_BIT_1 : OCELOT_VCAP_BIT_0);
+ VCAP_KEY_BIT_SET(L3_FRAGMENT, fragment);
+ VCAP_KEY_ANY_SET(L3_FRAG_OFS_GT0);
+ VCAP_KEY_BIT_SET(L3_OPTIONS, options);
+ VCAP_KEY_BIT_SET(L3_TTL_GT0, ttl);
+ VCAP_KEY_BYTES_SET(L3_TOS, ds.value, ds.mask);
+ vcap_key_bytes_set(&data, IS2_HKO_L3_IP4_DIP, dip.value.addr,
+ dip.mask.addr, 4);
+ vcap_key_bytes_set(&data, IS2_HKO_L3_IP4_SIP, sip.value.addr,
+ sip.mask.addr, 4);
+ VCAP_KEY_BIT_SET(DIP_EQ_SIP, sip_eq_dip);
+ val = proto.value[0];
+ msk = proto.mask[0];
+ type = IS2_TYPE_IP_UDP_TCP;
+ if (msk == 0xff && (val == 6 || val == 17)) {
+ /* UDP/TCP protocol match */
+ tcp = (val == 6 ?
+ OCELOT_VCAP_BIT_1 : OCELOT_VCAP_BIT_0);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_TCP, tcp);
+ vcap_key_l4_port_set(&data,
+ IS2_HKO_IP4_TCP_UDP_L4_DPORT,
+ dport);
+ vcap_key_l4_port_set(&data,
+ IS2_HKO_IP4_TCP_UDP_L4_SPORT,
+ sport);
+ VCAP_KEY_ANY_SET(IP4_TCP_UDP_L4_RNG);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_SPORT_EQ_DPORT,
+ sport_eq_dport);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_SEQUENCE_EQ0, seq_zero);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_FIN, tcp_fin);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_SYN, tcp_syn);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_RST, tcp_rst);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_PSH, tcp_psh);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_ACK, tcp_ack);
+ VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_URG, tcp_urg);
+ VCAP_KEY_ANY_SET(IP4_TCP_UDP_L4_1588_DOM);
+ VCAP_KEY_ANY_SET(IP4_TCP_UDP_L4_1588_VER);
+ } else {
+ if (msk == 0) {
+ /* Any IP protocol match */
+ type_mask = IS2_TYPE_MASK_IP_ANY;
+ } else {
+ /* Non-UDP/TCP protocol match */
+ type = IS2_TYPE_IP_OTHER;
+ for (i = 0; i < 6; i++) {
+ payload.value[i] = ip_data->value[i];
+ payload.mask[i] = ip_data->mask[i];
+ }
+ }
+ VCAP_KEY_BYTES_SET(IP4_OTHER_L3_PROTO, proto.value,
+ proto.mask);
+ VCAP_KEY_BYTES_SET(IP4_OTHER_L3_PAYLOAD, payload.value,
+ payload.mask);
+ }
+ break;
+ }
+ case OCELOT_ACE_TYPE_ANY:
+ default:
+ type = 0;
+ type_mask = 0;
+ count = (vcap_is2.entry_width / 2);
+ for (i = (IS2_HKO_PCP + IS2_HKL_PCP); i < count;
+ i += ENTRY_WIDTH) {
+ /* Clear entry data */
+ vcap_key_set(&data, i, min(32u, count - i), 0, 0);
+ }
+ break;
+ }
+
+ VCAP_KEY_SET(TYPE, type, type_mask);
+ is2_action_set(&data, ace->action);
+ vcap_data_set(data.counter, data.counter_offset, vcap_is2.counter_width,
+ ace->stats.pkts);
+
+ /* Write row */
+ vcap_entry2cache(ocelot, &data);
+ vcap_action2cache(ocelot, &data);
+ vcap_row_cmd(ocelot, row, VCAP_CMD_WRITE, VCAP_SEL_ALL);
+}
+
+static void is2_entry_get(struct ocelot_ace_rule *rule, int ix)
+{
+ struct ocelot *op = rule->port->ocelot;
+ struct vcap_data data;
+ int row = (ix / 2);
+ u32 cnt;
+
+ vcap_row_cmd(op, row, VCAP_CMD_READ, VCAP_SEL_COUNTER);
+ vcap_cache2action(op, &data);
+ data.tg_sw = VCAP_TG_HALF;
+ is2_data_get(&data, ix);
+ cnt = vcap_data_get(data.counter, data.counter_offset,
+ vcap_is2.counter_width);
+
+ rule->stats.pkts = cnt;
+}
+
+static void ocelot_ace_rule_add(struct ocelot_acl_block *block,
+ struct ocelot_ace_rule *rule)
+{
+ struct ocelot_ace_rule *tmp;
+ struct list_head *pos, *n;
+
+ block->count++;
+
+ if (list_empty(&block->rules)) {
+ list_add(&rule->list, &block->rules);
+ return;
+ }
+
+ list_for_each_safe(pos, n, &block->rules) {
+ tmp = list_entry(pos, struct ocelot_ace_rule, list);
+ if (rule->prio < tmp->prio)
+ break;
+ }
+ list_add(&rule->list, pos->prev);
+}
+
+static int ocelot_ace_rule_get_index_id(struct ocelot_acl_block *block,
+ struct ocelot_ace_rule *rule)
+{
+ struct ocelot_ace_rule *tmp;
+ int index = -1;
+
+ list_for_each_entry(tmp, &block->rules, list) {
+ ++index;
+ if (rule->id == tmp->id)
+ break;
+ }
+ return index;
+}
+
+static struct ocelot_ace_rule*
+ocelot_ace_rule_get_rule_index(struct ocelot_acl_block *block, int index)
+{
+ struct ocelot_ace_rule *tmp;
+ int i = 0;
+
+ list_for_each_entry(tmp, &block->rules, list) {
+ if (i == index)
+ return tmp;
+ ++i;
+ }
+
+ return NULL;
+}
+
+int ocelot_ace_rule_offload_add(struct ocelot_ace_rule *rule)
+{
+ struct ocelot_ace_rule *ace;
+ int i, index;
+
+ /* Add rule to the linked list */
+ ocelot_ace_rule_add(acl_block, rule);
+
+ /* Get the index of the inserted rule */
+ index = ocelot_ace_rule_get_index_id(acl_block, rule);
+
+ /* Move down the rules to make place for the new rule */
+ for (i = acl_block->count - 1; i > index; i--) {
+ ace = ocelot_ace_rule_get_rule_index(acl_block, i);
+ is2_entry_set(rule->port->ocelot, i, ace);
+ }
+
+ /* Now insert the new rule */
+ is2_entry_set(rule->port->ocelot, index, rule);
+ return 0;
+}
+
+static void ocelot_ace_rule_del(struct ocelot_acl_block *block,
+ struct ocelot_ace_rule *rule)
+{
+ struct ocelot_ace_rule *tmp;
+ struct list_head *pos, *q;
+
+ list_for_each_safe(pos, q, &block->rules) {
+ tmp = list_entry(pos, struct ocelot_ace_rule, list);
+ if (tmp->id == rule->id) {
+ list_del(pos);
+ kfree(tmp);
+ }
+ }
+
+ block->count--;
+}
+
+int ocelot_ace_rule_offload_del(struct ocelot_ace_rule *rule)
+{
+ struct ocelot_ace_rule del_ace = { 0 };
+ struct ocelot_ace_rule *ace;
+ int i, index;
+
+ /* Gets index of the rule */
+ index = ocelot_ace_rule_get_index_id(acl_block, rule);
+
+ /* Delete rule */
+ ocelot_ace_rule_del(acl_block, rule);
+
+ /* Move up all the blocks over the deleted rule */
+ for (i = index; i < acl_block->count; i++) {
+ ace = ocelot_ace_rule_get_rule_index(acl_block, i);
+ is2_entry_set(rule->port->ocelot, i, ace);
+ }
+
+ /* Now delete the last rule, because it is duplicated */
+ is2_entry_set(rule->port->ocelot, acl_block->count, &del_ace);
+
+ return 0;
+}
+
+int ocelot_ace_rule_stats_update(struct ocelot_ace_rule *rule)
+{
+ struct ocelot_ace_rule *tmp;
+ int index;
+
+ index = ocelot_ace_rule_get_index_id(acl_block, rule);
+ is2_entry_get(rule, index);
+
+ /* After we get the result we need to clear the counters */
+ tmp = ocelot_ace_rule_get_rule_index(acl_block, index);
+ tmp->stats.pkts = 0;
+ is2_entry_set(rule->port->ocelot, index, tmp);
+
+ return 0;
+}
+
+static struct ocelot_acl_block *ocelot_acl_block_create(struct ocelot *ocelot)
+{
+ struct ocelot_acl_block *block;
+
+ block = kzalloc(sizeof(*block), GFP_KERNEL);
+ if (!block)
+ return NULL;
+
+ INIT_LIST_HEAD(&block->rules);
+ block->count = 0;
+ block->ocelot = ocelot;
+
+ return block;
+}
+
+static void ocelot_acl_block_destroy(struct ocelot_acl_block *block)
+{
+ kfree(block);
+}
+
+int ocelot_ace_init(struct ocelot *ocelot)
+{
+ struct vcap_data data = { 0 };
+
+ vcap_entry2cache(ocelot, &data);
+ ocelot_write(ocelot, vcap_is2.entry_count, S2_CORE_MV_CFG);
+ vcap_cmd(ocelot, 0, VCAP_CMD_INITIALIZE, VCAP_SEL_ENTRY);
+
+ vcap_action2cache(ocelot, &data);
+ ocelot_write(ocelot, vcap_is2.action_count, S2_CORE_MV_CFG);
+ vcap_cmd(ocelot, 0, VCAP_CMD_INITIALIZE,
+ VCAP_SEL_ACTION | VCAP_SEL_COUNTER);
+
+ /* Create a policer that will drop the frames for the cpu.
+ * This policer will be used as action in the acl rules to drop
+ * frames.
+ */
+ ocelot_write_gix(ocelot, 0x299, ANA_POL_MODE_CFG,
+ OCELOT_POLICER_DISCARD);
+ ocelot_write_gix(ocelot, 0x1, ANA_POL_PIR_CFG,
+ OCELOT_POLICER_DISCARD);
+ ocelot_write_gix(ocelot, 0x3fffff, ANA_POL_PIR_STATE,
+ OCELOT_POLICER_DISCARD);
+ ocelot_write_gix(ocelot, 0x0, ANA_POL_CIR_CFG,
+ OCELOT_POLICER_DISCARD);
+ ocelot_write_gix(ocelot, 0x3fffff, ANA_POL_CIR_STATE,
+ OCELOT_POLICER_DISCARD);
+
+ acl_block = ocelot_acl_block_create(ocelot);
+
+ return 0;
+}
+
+void ocelot_ace_deinit(void)
+{
+ ocelot_acl_block_destroy(acl_block);
+}
diff --git a/drivers/net/ethernet/mscc/ocelot_ace.h b/drivers/net/ethernet/mscc/ocelot_ace.h
new file mode 100644
index 0000000..c84e608
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot_ace.h
@@ -0,0 +1,227 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/* Microsemi Ocelot Switch driver
+ * Copyright (c) 2019 Microsemi Corporation
+ */
+
+#ifndef _MSCC_OCELOT_ACE_H_
+#define _MSCC_OCELOT_ACE_H_
+
+#include "ocelot.h"
+#include <net/sch_generic.h>
+#include <net/pkt_cls.h>
+
+struct ocelot_ipv4 {
+ u8 addr[4];
+};
+
+enum ocelot_vcap_bit {
+ OCELOT_VCAP_BIT_ANY,
+ OCELOT_VCAP_BIT_0,
+ OCELOT_VCAP_BIT_1
+};
+
+struct ocelot_vcap_u8 {
+ u8 value[1];
+ u8 mask[1];
+};
+
+struct ocelot_vcap_u16 {
+ u8 value[2];
+ u8 mask[2];
+};
+
+struct ocelot_vcap_u24 {
+ u8 value[3];
+ u8 mask[3];
+};
+
+struct ocelot_vcap_u32 {
+ u8 value[4];
+ u8 mask[4];
+};
+
+struct ocelot_vcap_u40 {
+ u8 value[5];
+ u8 mask[5];
+};
+
+struct ocelot_vcap_u48 {
+ u8 value[6];
+ u8 mask[6];
+};
+
+struct ocelot_vcap_u64 {
+ u8 value[8];
+ u8 mask[8];
+};
+
+struct ocelot_vcap_u128 {
+ u8 value[16];
+ u8 mask[16];
+};
+
+struct ocelot_vcap_vid {
+ u16 value;
+ u16 mask;
+};
+
+struct ocelot_vcap_ipv4 {
+ struct ocelot_ipv4 value;
+ struct ocelot_ipv4 mask;
+};
+
+struct ocelot_vcap_udp_tcp {
+ u16 value;
+ u16 mask;
+};
+
+enum ocelot_ace_type {
+ OCELOT_ACE_TYPE_ANY,
+ OCELOT_ACE_TYPE_ETYPE,
+ OCELOT_ACE_TYPE_LLC,
+ OCELOT_ACE_TYPE_SNAP,
+ OCELOT_ACE_TYPE_ARP,
+ OCELOT_ACE_TYPE_IPV4,
+ OCELOT_ACE_TYPE_IPV6
+};
+
+struct ocelot_ace_vlan {
+ struct ocelot_vcap_vid vid; /* VLAN ID (12 bit) */
+ struct ocelot_vcap_u8 pcp; /* PCP (3 bit) */
+ enum ocelot_vcap_bit dei; /* DEI */
+ enum ocelot_vcap_bit tagged; /* Tagged/untagged frame */
+};
+
+struct ocelot_ace_frame_etype {
+ struct ocelot_vcap_u48 dmac;
+ struct ocelot_vcap_u48 smac;
+ struct ocelot_vcap_u16 etype;
+ struct ocelot_vcap_u16 data; /* MAC data */
+};
+
+struct ocelot_ace_frame_llc {
+ struct ocelot_vcap_u48 dmac;
+ struct ocelot_vcap_u48 smac;
+
+ /* LLC header: DSAP at byte 0, SSAP at byte 1, Control at byte 2 */
+ struct ocelot_vcap_u32 llc;
+};
+
+struct ocelot_ace_frame_snap {
+ struct ocelot_vcap_u48 dmac;
+ struct ocelot_vcap_u48 smac;
+
+ /* SNAP header: Organization Code at byte 0, Type at byte 3 */
+ struct ocelot_vcap_u40 snap;
+};
+
+struct ocelot_ace_frame_arp {
+ struct ocelot_vcap_u48 smac;
+ enum ocelot_vcap_bit arp; /* Opcode ARP/RARP */
+ enum ocelot_vcap_bit req; /* Opcode request/reply */
+ enum ocelot_vcap_bit unknown; /* Opcode unknown */
+ enum ocelot_vcap_bit smac_match; /* Sender MAC matches SMAC */
+ enum ocelot_vcap_bit dmac_match; /* Target MAC matches DMAC */
+
+ /**< Protocol addr. length 4, hardware length 6 */
+ enum ocelot_vcap_bit length;
+
+ enum ocelot_vcap_bit ip; /* Protocol address type IP */
+ enum ocelot_vcap_bit ethernet; /* Hardware address type Ethernet */
+ struct ocelot_vcap_ipv4 sip; /* Sender IP address */
+ struct ocelot_vcap_ipv4 dip; /* Target IP address */
+};
+
+struct ocelot_ace_frame_ipv4 {
+ enum ocelot_vcap_bit ttl; /* TTL zero */
+ enum ocelot_vcap_bit fragment; /* Fragment */
+ enum ocelot_vcap_bit options; /* Header options */
+ struct ocelot_vcap_u8 ds;
+ struct ocelot_vcap_u8 proto; /* Protocol */
+ struct ocelot_vcap_ipv4 sip; /* Source IP address */
+ struct ocelot_vcap_ipv4 dip; /* Destination IP address */
+ struct ocelot_vcap_u48 data; /* Not UDP/TCP: IP data */
+ struct ocelot_vcap_udp_tcp sport; /* UDP/TCP: Source port */
+ struct ocelot_vcap_udp_tcp dport; /* UDP/TCP: Destination port */
+ enum ocelot_vcap_bit tcp_fin;
+ enum ocelot_vcap_bit tcp_syn;
+ enum ocelot_vcap_bit tcp_rst;
+ enum ocelot_vcap_bit tcp_psh;
+ enum ocelot_vcap_bit tcp_ack;
+ enum ocelot_vcap_bit tcp_urg;
+ enum ocelot_vcap_bit sip_eq_dip; /* SIP equals DIP */
+ enum ocelot_vcap_bit sport_eq_dport; /* SPORT equals DPORT */
+ enum ocelot_vcap_bit seq_zero; /* TCP sequence number is zero */
+};
+
+struct ocelot_ace_frame_ipv6 {
+ struct ocelot_vcap_u8 proto; /* IPv6 protocol */
+ struct ocelot_vcap_u128 sip; /* IPv6 source (byte 0-7 ignored) */
+ enum ocelot_vcap_bit ttl; /* TTL zero */
+ struct ocelot_vcap_u8 ds;
+ struct ocelot_vcap_u48 data; /* Not UDP/TCP: IP data */
+ struct ocelot_vcap_udp_tcp sport;
+ struct ocelot_vcap_udp_tcp dport;
+ enum ocelot_vcap_bit tcp_fin;
+ enum ocelot_vcap_bit tcp_syn;
+ enum ocelot_vcap_bit tcp_rst;
+ enum ocelot_vcap_bit tcp_psh;
+ enum ocelot_vcap_bit tcp_ack;
+ enum ocelot_vcap_bit tcp_urg;
+ enum ocelot_vcap_bit sip_eq_dip; /* SIP equals DIP */
+ enum ocelot_vcap_bit sport_eq_dport; /* SPORT equals DPORT */
+ enum ocelot_vcap_bit seq_zero; /* TCP sequence number is zero */
+};
+
+enum ocelot_ace_action {
+ OCELOT_ACL_ACTION_DROP,
+ OCELOT_ACL_ACTION_TRAP,
+};
+
+struct ocelot_ace_stats {
+ u64 bytes;
+ u64 pkts;
+ u64 used;
+};
+
+struct ocelot_ace_rule {
+ struct list_head list;
+ struct ocelot_port *port;
+
+ u16 prio;
+ u32 id;
+
+ enum ocelot_ace_action action;
+ struct ocelot_ace_stats stats;
+ int chip_port;
+
+ enum ocelot_vcap_bit dmac_mc;
+ enum ocelot_vcap_bit dmac_bc;
+ struct ocelot_ace_vlan vlan;
+
+ enum ocelot_ace_type type;
+ union {
+ /* ocelot_ACE_TYPE_ANY: No specific fields */
+ struct ocelot_ace_frame_etype etype;
+ struct ocelot_ace_frame_llc llc;
+ struct ocelot_ace_frame_snap snap;
+ struct ocelot_ace_frame_arp arp;
+ struct ocelot_ace_frame_ipv4 ipv4;
+ struct ocelot_ace_frame_ipv6 ipv6;
+ } frame;
+};
+
+struct ocelot_acl_block {
+ struct list_head rules;
+ struct ocelot *ocelot;
+ int count;
+};
+
+int ocelot_ace_rule_offload_add(struct ocelot_ace_rule *rule);
+int ocelot_ace_rule_offload_del(struct ocelot_ace_rule *rule);
+int ocelot_ace_rule_stats_update(struct ocelot_ace_rule *rule);
+
+int ocelot_ace_init(struct ocelot *ocelot);
+void ocelot_ace_deinit(void);
+
+#endif /* _MSCC_OCELOT_ACE_H_ */
diff --git a/drivers/net/ethernet/mscc/ocelot_board.c b/drivers/net/ethernet/mscc/ocelot_board.c
index e7f9010..58bde1a 100644
--- a/drivers/net/ethernet/mscc/ocelot_board.c
+++ b/drivers/net/ethernet/mscc/ocelot_board.c
@@ -188,6 +188,7 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
{ QSYS, "qsys" },
{ ANA, "ana" },
{ QS, "qs" },
+ { S2, "s2" },
};
if (!np && !pdev->dev.platform_data)
diff --git a/drivers/net/ethernet/mscc/ocelot_regs.c b/drivers/net/ethernet/mscc/ocelot_regs.c
index 9271af1..6c387f9 100644
--- a/drivers/net/ethernet/mscc/ocelot_regs.c
+++ b/drivers/net/ethernet/mscc/ocelot_regs.c
@@ -224,12 +224,23 @@ static const u32 ocelot_sys_regmap[] = {
REG(SYS_PTP_CFG, 0x0006c4),
};
+static const u32 ocelot_s2_regmap[] = {
+ REG(S2_CORE_UPDATE_CTRL, 0x000000),
+ REG(S2_CORE_MV_CFG, 0x000004),
+ REG(S2_CACHE_ENTRY_DAT, 0x000008),
+ REG(S2_CACHE_MASK_DAT, 0x000108),
+ REG(S2_CACHE_ACTION_DAT, 0x000208),
+ REG(S2_CACHE_CNT_DAT, 0x000308),
+ REG(S2_CACHE_TG_DAT, 0x000388),
+};
+
static const u32 *ocelot_regmap[] = {
[ANA] = ocelot_ana_regmap,
[QS] = ocelot_qs_regmap,
[QSYS] = ocelot_qsys_regmap,
[REW] = ocelot_rew_regmap,
[SYS] = ocelot_sys_regmap,
+ [S2] = ocelot_s2_regmap,
};
static const struct reg_field ocelot_regfields[] = {
diff --git a/drivers/net/ethernet/mscc/ocelot_s2.h b/drivers/net/ethernet/mscc/ocelot_s2.h
new file mode 100644
index 0000000..80107be
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot_s2.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/* Microsemi Ocelot Switch driver
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+#ifndef _OCELOT_S2_CORE_H_
+#define _OCELOT_S2_CORE_H_
+
+#define S2_CORE_UPDATE_CTRL_UPDATE_CMD(x) (((x) << 22) & GENMASK(24, 22))
+#define S2_CORE_UPDATE_CTRL_UPDATE_CMD_M GENMASK(24, 22)
+#define S2_CORE_UPDATE_CTRL_UPDATE_CMD_X(x) (((x) & GENMASK(24, 22)) >> 22)
+#define S2_CORE_UPDATE_CTRL_UPDATE_ENTRY_DIS BIT(21)
+#define S2_CORE_UPDATE_CTRL_UPDATE_ACTION_DIS BIT(20)
+#define S2_CORE_UPDATE_CTRL_UPDATE_CNT_DIS BIT(19)
+#define S2_CORE_UPDATE_CTRL_UPDATE_ADDR(x) (((x) << 3) & GENMASK(18, 3))
+#define S2_CORE_UPDATE_CTRL_UPDATE_ADDR_M GENMASK(18, 3)
+#define S2_CORE_UPDATE_CTRL_UPDATE_ADDR_X(x) (((x) & GENMASK(18, 3)) >> 3)
+#define S2_CORE_UPDATE_CTRL_UPDATE_SHOT BIT(2)
+#define S2_CORE_UPDATE_CTRL_CLEAR_CACHE BIT(1)
+#define S2_CORE_UPDATE_CTRL_MV_TRAFFIC_IGN BIT(0)
+
+#define S2_CORE_MV_CFG_MV_NUM_POS(x) (((x) << 16) & GENMASK(31, 16))
+#define S2_CORE_MV_CFG_MV_NUM_POS_M GENMASK(31, 16)
+#define S2_CORE_MV_CFG_MV_NUM_POS_X(x) (((x) & GENMASK(31, 16)) >> 16)
+#define S2_CORE_MV_CFG_MV_SIZE(x) ((x) & GENMASK(15, 0))
+#define S2_CORE_MV_CFG_MV_SIZE_M GENMASK(15, 0)
+
+#define S2_CACHE_ENTRY_DAT_RSZ 0x4
+
+#define S2_CACHE_MASK_DAT_RSZ 0x4
+
+#define S2_CACHE_ACTION_DAT_RSZ 0x4
+
+#define S2_CACHE_CNT_DAT_RSZ 0x4
+
+#define S2_STICKY_VCAP_ROW_DELETED_STICKY BIT(0)
+
+#define S2_BIST_CTRL_TCAM_BIST BIT(1)
+#define S2_BIST_CTRL_TCAM_INIT BIT(0)
+
+#define S2_BIST_CFG_TCAM_BIST_SOE_ENA BIT(8)
+#define S2_BIST_CFG_TCAM_HCG_DIS BIT(7)
+#define S2_BIST_CFG_TCAM_CG_DIS BIT(6)
+#define S2_BIST_CFG_TCAM_BIAS(x) ((x) & GENMASK(5, 0))
+#define S2_BIST_CFG_TCAM_BIAS_M GENMASK(5, 0)
+
+#define S2_BIST_STAT_BIST_RT_ERR BIT(15)
+#define S2_BIST_STAT_BIST_PENC_ERR BIT(14)
+#define S2_BIST_STAT_BIST_COMP_ERR BIT(13)
+#define S2_BIST_STAT_BIST_ADDR_ERR BIT(12)
+#define S2_BIST_STAT_BIST_BL1E_ERR BIT(11)
+#define S2_BIST_STAT_BIST_BL1_ERR BIT(10)
+#define S2_BIST_STAT_BIST_BL0E_ERR BIT(9)
+#define S2_BIST_STAT_BIST_BL0_ERR BIT(8)
+#define S2_BIST_STAT_BIST_PH1_ERR BIT(7)
+#define S2_BIST_STAT_BIST_PH0_ERR BIT(6)
+#define S2_BIST_STAT_BIST_PV1_ERR BIT(5)
+#define S2_BIST_STAT_BIST_PV0_ERR BIT(4)
+#define S2_BIST_STAT_BIST_RUN BIT(3)
+#define S2_BIST_STAT_BIST_ERR BIT(2)
+#define S2_BIST_STAT_BIST_BUSY BIT(1)
+#define S2_BIST_STAT_TCAM_RDY BIT(0)
+
+#endif /* _OCELOT_S2_CORE_H_ */
diff --git a/drivers/net/ethernet/mscc/ocelot_vcap.h b/drivers/net/ethernet/mscc/ocelot_vcap.h
new file mode 100644
index 0000000..e22eac1
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot_vcap.h
@@ -0,0 +1,403 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ * Microsemi Ocelot Switch driver
+ * Copyright (c) 2019 Microsemi Corporation
+ */
+
+#ifndef _OCELOT_VCAP_H_
+#define _OCELOT_VCAP_H_
+
+/* =================================================================
+ * VCAP Common
+ * =================================================================
+ */
+
+/* VCAP Type-Group values */
+#define VCAP_TG_NONE 0 /* Entry is invalid */
+#define VCAP_TG_FULL 1 /* Full entry */
+#define VCAP_TG_HALF 2 /* Half entry */
+#define VCAP_TG_QUARTER 3 /* Quarter entry */
+
+/* =================================================================
+ * VCAP IS2
+ * =================================================================
+ */
+
+#define VCAP_IS2_CNT 64
+#define VCAP_IS2_ENTRY_WIDTH 376
+#define VCAP_IS2_ACTION_WIDTH 99
+#define VCAP_PORT_CNT 11
+
+/* IS2 half key types */
+#define IS2_TYPE_ETYPE 0
+#define IS2_TYPE_LLC 1
+#define IS2_TYPE_SNAP 2
+#define IS2_TYPE_ARP 3
+#define IS2_TYPE_IP_UDP_TCP 4
+#define IS2_TYPE_IP_OTHER 5
+#define IS2_TYPE_IPV6 6
+#define IS2_TYPE_OAM 7
+#define IS2_TYPE_SMAC_SIP6 8
+#define IS2_TYPE_ANY 100 /* Pseudo type */
+
+/* IS2 half key type mask for matching any IP */
+#define IS2_TYPE_MASK_IP_ANY 0xe
+
+/* IS2 action types */
+#define IS2_ACTION_TYPE_NORMAL 0
+#define IS2_ACTION_TYPE_SMAC_SIP 1
+
+/* IS2 MASK_MODE values */
+#define IS2_ACT_MASK_MODE_NONE 0
+#define IS2_ACT_MASK_MODE_FILTER 1
+#define IS2_ACT_MASK_MODE_POLICY 2
+#define IS2_ACT_MASK_MODE_REDIR 3
+
+/* IS2 REW_OP values */
+#define IS2_ACT_REW_OP_NONE 0
+#define IS2_ACT_REW_OP_PTP_ONE 2
+#define IS2_ACT_REW_OP_PTP_TWO 3
+#define IS2_ACT_REW_OP_SPECIAL 8
+#define IS2_ACT_REW_OP_PTP_ORG 9
+#define IS2_ACT_REW_OP_PTP_ONE_SUB_DELAY_1 (IS2_ACT_REW_OP_PTP_ONE | (1 << 3))
+#define IS2_ACT_REW_OP_PTP_ONE_SUB_DELAY_2 (IS2_ACT_REW_OP_PTP_ONE | (2 << 3))
+#define IS2_ACT_REW_OP_PTP_ONE_ADD_DELAY (IS2_ACT_REW_OP_PTP_ONE | (1 << 5))
+#define IS2_ACT_REW_OP_PTP_ONE_ADD_SUB BIT(7)
+
+#define VCAP_PORT_WIDTH 4
+
+/* IS2 quarter key - SMAC_SIP4 */
+#define IS2_QKO_IGR_PORT 0
+#define IS2_QKL_IGR_PORT VCAP_PORT_WIDTH
+#define IS2_QKO_L2_SMAC (IS2_QKO_IGR_PORT + IS2_QKL_IGR_PORT)
+#define IS2_QKL_L2_SMAC 48
+#define IS2_QKO_L3_IP4_SIP (IS2_QKO_L2_SMAC + IS2_QKL_L2_SMAC)
+#define IS2_QKL_L3_IP4_SIP 32
+
+/* IS2 half key - common */
+#define IS2_HKO_TYPE 0
+#define IS2_HKL_TYPE 4
+#define IS2_HKO_FIRST (IS2_HKO_TYPE + IS2_HKL_TYPE)
+#define IS2_HKL_FIRST 1
+#define IS2_HKO_PAG (IS2_HKO_FIRST + IS2_HKL_FIRST)
+#define IS2_HKL_PAG 8
+#define IS2_HKO_IGR_PORT_MASK (IS2_HKO_PAG + IS2_HKL_PAG)
+#define IS2_HKL_IGR_PORT_MASK (VCAP_PORT_CNT + 1)
+#define IS2_HKO_SERVICE_FRM (IS2_HKO_IGR_PORT_MASK + IS2_HKL_IGR_PORT_MASK)
+#define IS2_HKL_SERVICE_FRM 1
+#define IS2_HKO_HOST_MATCH (IS2_HKO_SERVICE_FRM + IS2_HKL_SERVICE_FRM)
+#define IS2_HKL_HOST_MATCH 1
+#define IS2_HKO_L2_MC (IS2_HKO_HOST_MATCH + IS2_HKL_HOST_MATCH)
+#define IS2_HKL_L2_MC 1
+#define IS2_HKO_L2_BC (IS2_HKO_L2_MC + IS2_HKL_L2_MC)
+#define IS2_HKL_L2_BC 1
+#define IS2_HKO_VLAN_TAGGED (IS2_HKO_L2_BC + IS2_HKL_L2_BC)
+#define IS2_HKL_VLAN_TAGGED 1
+#define IS2_HKO_VID (IS2_HKO_VLAN_TAGGED + IS2_HKL_VLAN_TAGGED)
+#define IS2_HKL_VID 12
+#define IS2_HKO_DEI (IS2_HKO_VID + IS2_HKL_VID)
+#define IS2_HKL_DEI 1
+#define IS2_HKO_PCP (IS2_HKO_DEI + IS2_HKL_DEI)
+#define IS2_HKL_PCP 3
+
+/* IS2 half key - MAC_ETYPE/MAC_LLC/MAC_SNAP/OAM common */
+#define IS2_HKO_L2_DMAC (IS2_HKO_PCP + IS2_HKL_PCP)
+#define IS2_HKL_L2_DMAC 48
+#define IS2_HKO_L2_SMAC (IS2_HKO_L2_DMAC + IS2_HKL_L2_DMAC)
+#define IS2_HKL_L2_SMAC 48
+
+/* IS2 half key - MAC_ETYPE */
+#define IS2_HKO_MAC_ETYPE_ETYPE (IS2_HKO_L2_SMAC + IS2_HKL_L2_SMAC)
+#define IS2_HKL_MAC_ETYPE_ETYPE 16
+#define IS2_HKO_MAC_ETYPE_L2_PAYLOAD \
+ (IS2_HKO_MAC_ETYPE_ETYPE + IS2_HKL_MAC_ETYPE_ETYPE)
+#define IS2_HKL_MAC_ETYPE_L2_PAYLOAD 27
+
+/* IS2 half key - MAC_LLC */
+#define IS2_HKO_MAC_LLC_L2_LLC IS2_HKO_MAC_ETYPE_ETYPE
+#define IS2_HKL_MAC_LLC_L2_LLC 40
+
+/* IS2 half key - MAC_SNAP */
+#define IS2_HKO_MAC_SNAP_L2_SNAP IS2_HKO_MAC_ETYPE_ETYPE
+#define IS2_HKL_MAC_SNAP_L2_SNAP 40
+
+/* IS2 half key - ARP */
+#define IS2_HKO_MAC_ARP_L2_SMAC IS2_HKO_L2_DMAC
+#define IS2_HKL_MAC_ARP_L2_SMAC 48
+#define IS2_HKO_MAC_ARP_ARP_ADDR_SPACE_OK \
+ (IS2_HKO_MAC_ARP_L2_SMAC + IS2_HKL_MAC_ARP_L2_SMAC)
+#define IS2_HKL_MAC_ARP_ARP_ADDR_SPACE_OK 1
+#define IS2_HKO_MAC_ARP_ARP_PROTO_SPACE_OK \
+ (IS2_HKO_MAC_ARP_ARP_ADDR_SPACE_OK + IS2_HKL_MAC_ARP_ARP_ADDR_SPACE_OK)
+#define IS2_HKL_MAC_ARP_ARP_PROTO_SPACE_OK 1
+#define IS2_HKO_MAC_ARP_ARP_LEN_OK \
+ (IS2_HKO_MAC_ARP_ARP_PROTO_SPACE_OK + \
+ IS2_HKL_MAC_ARP_ARP_PROTO_SPACE_OK)
+#define IS2_HKL_MAC_ARP_ARP_LEN_OK 1
+#define IS2_HKO_MAC_ARP_ARP_TGT_MATCH \
+ (IS2_HKO_MAC_ARP_ARP_LEN_OK + IS2_HKL_MAC_ARP_ARP_LEN_OK)
+#define IS2_HKL_MAC_ARP_ARP_TGT_MATCH 1
+#define IS2_HKO_MAC_ARP_ARP_SENDER_MATCH \
+ (IS2_HKO_MAC_ARP_ARP_TGT_MATCH + IS2_HKL_MAC_ARP_ARP_TGT_MATCH)
+#define IS2_HKL_MAC_ARP_ARP_SENDER_MATCH 1
+#define IS2_HKO_MAC_ARP_ARP_OPCODE_UNKNOWN \
+ (IS2_HKO_MAC_ARP_ARP_SENDER_MATCH + IS2_HKL_MAC_ARP_ARP_SENDER_MATCH)
+#define IS2_HKL_MAC_ARP_ARP_OPCODE_UNKNOWN 1
+#define IS2_HKO_MAC_ARP_ARP_OPCODE \
+ (IS2_HKO_MAC_ARP_ARP_OPCODE_UNKNOWN + \
+ IS2_HKL_MAC_ARP_ARP_OPCODE_UNKNOWN)
+#define IS2_HKL_MAC_ARP_ARP_OPCODE 2
+#define IS2_HKO_MAC_ARP_L3_IP4_DIP \
+ (IS2_HKO_MAC_ARP_ARP_OPCODE + IS2_HKL_MAC_ARP_ARP_OPCODE)
+#define IS2_HKL_MAC_ARP_L3_IP4_DIP 32
+#define IS2_HKO_MAC_ARP_L3_IP4_SIP \
+ (IS2_HKO_MAC_ARP_L3_IP4_DIP + IS2_HKL_MAC_ARP_L3_IP4_DIP)
+#define IS2_HKL_MAC_ARP_L3_IP4_SIP 32
+#define IS2_HKO_MAC_ARP_DIP_EQ_SIP \
+ (IS2_HKO_MAC_ARP_L3_IP4_SIP + IS2_HKL_MAC_ARP_L3_IP4_SIP)
+#define IS2_HKL_MAC_ARP_DIP_EQ_SIP 1
+
+/* IS2 half key - IP4_TCP_UDP/IP4_OTHER common */
+#define IS2_HKO_IP4 IS2_HKO_L2_DMAC
+#define IS2_HKL_IP4 1
+#define IS2_HKO_L3_FRAGMENT (IS2_HKO_IP4 + IS2_HKL_IP4)
+#define IS2_HKL_L3_FRAGMENT 1
+#define IS2_HKO_L3_FRAG_OFS_GT0 (IS2_HKO_L3_FRAGMENT + IS2_HKL_L3_FRAGMENT)
+#define IS2_HKL_L3_FRAG_OFS_GT0 1
+#define IS2_HKO_L3_OPTIONS (IS2_HKO_L3_FRAG_OFS_GT0 + IS2_HKL_L3_FRAG_OFS_GT0)
+#define IS2_HKL_L3_OPTIONS 1
+#define IS2_HKO_L3_TTL_GT0 (IS2_HKO_L3_OPTIONS + IS2_HKL_L3_OPTIONS)
+#define IS2_HKL_L3_TTL_GT0 1
+#define IS2_HKO_L3_TOS (IS2_HKO_L3_TTL_GT0 + IS2_HKL_L3_TTL_GT0)
+#define IS2_HKL_L3_TOS 8
+#define IS2_HKO_L3_IP4_DIP (IS2_HKO_L3_TOS + IS2_HKL_L3_TOS)
+#define IS2_HKL_L3_IP4_DIP 32
+#define IS2_HKO_L3_IP4_SIP (IS2_HKO_L3_IP4_DIP + IS2_HKL_L3_IP4_DIP)
+#define IS2_HKL_L3_IP4_SIP 32
+#define IS2_HKO_DIP_EQ_SIP (IS2_HKO_L3_IP4_SIP + IS2_HKL_L3_IP4_SIP)
+#define IS2_HKL_DIP_EQ_SIP 1
+
+/* IS2 half key - IP4_TCP_UDP */
+#define IS2_HKO_IP4_TCP_UDP_TCP (IS2_HKO_DIP_EQ_SIP + IS2_HKL_DIP_EQ_SIP)
+#define IS2_HKL_IP4_TCP_UDP_TCP 1
+#define IS2_HKO_IP4_TCP_UDP_L4_DPORT \
+ (IS2_HKO_IP4_TCP_UDP_TCP + IS2_HKL_IP4_TCP_UDP_TCP)
+#define IS2_HKL_IP4_TCP_UDP_L4_DPORT 16
+#define IS2_HKO_IP4_TCP_UDP_L4_SPORT \
+ (IS2_HKO_IP4_TCP_UDP_L4_DPORT + IS2_HKL_IP4_TCP_UDP_L4_DPORT)
+#define IS2_HKL_IP4_TCP_UDP_L4_SPORT 16
+#define IS2_HKO_IP4_TCP_UDP_L4_RNG \
+ (IS2_HKO_IP4_TCP_UDP_L4_SPORT + IS2_HKL_IP4_TCP_UDP_L4_SPORT)
+#define IS2_HKL_IP4_TCP_UDP_L4_RNG 8
+#define IS2_HKO_IP4_TCP_UDP_SPORT_EQ_DPORT \
+ (IS2_HKO_IP4_TCP_UDP_L4_RNG + IS2_HKL_IP4_TCP_UDP_L4_RNG)
+#define IS2_HKL_IP4_TCP_UDP_SPORT_EQ_DPORT 1
+#define IS2_HKO_IP4_TCP_UDP_SEQUENCE_EQ0 \
+ (IS2_HKO_IP4_TCP_UDP_SPORT_EQ_DPORT + \
+ IS2_HKL_IP4_TCP_UDP_SPORT_EQ_DPORT)
+#define IS2_HKL_IP4_TCP_UDP_SEQUENCE_EQ0 1
+#define IS2_HKO_IP4_TCP_UDP_L4_FIN \
+ (IS2_HKO_IP4_TCP_UDP_SEQUENCE_EQ0 + IS2_HKL_IP4_TCP_UDP_SEQUENCE_EQ0)
+#define IS2_HKL_IP4_TCP_UDP_L4_FIN 1
+#define IS2_HKO_IP4_TCP_UDP_L4_SYN \
+ (IS2_HKO_IP4_TCP_UDP_L4_FIN + IS2_HKL_IP4_TCP_UDP_L4_FIN)
+#define IS2_HKL_IP4_TCP_UDP_L4_SYN 1
+#define IS2_HKO_IP4_TCP_UDP_L4_RST \
+ (IS2_HKO_IP4_TCP_UDP_L4_SYN + IS2_HKL_IP4_TCP_UDP_L4_SYN)
+#define IS2_HKL_IP4_TCP_UDP_L4_RST 1
+#define IS2_HKO_IP4_TCP_UDP_L4_PSH \
+ (IS2_HKO_IP4_TCP_UDP_L4_RST + IS2_HKL_IP4_TCP_UDP_L4_RST)
+#define IS2_HKL_IP4_TCP_UDP_L4_PSH 1
+#define IS2_HKO_IP4_TCP_UDP_L4_ACK \
+ (IS2_HKO_IP4_TCP_UDP_L4_PSH + IS2_HKL_IP4_TCP_UDP_L4_PSH)
+#define IS2_HKL_IP4_TCP_UDP_L4_ACK 1
+#define IS2_HKO_IP4_TCP_UDP_L4_URG \
+ (IS2_HKO_IP4_TCP_UDP_L4_ACK + IS2_HKL_IP4_TCP_UDP_L4_ACK)
+#define IS2_HKL_IP4_TCP_UDP_L4_URG 1
+#define IS2_HKO_IP4_TCP_UDP_L4_1588_DOM \
+ (IS2_HKO_IP4_TCP_UDP_L4_URG + IS2_HKL_IP4_TCP_UDP_L4_URG)
+#define IS2_HKL_IP4_TCP_UDP_L4_1588_DOM 8
+#define IS2_HKO_IP4_TCP_UDP_L4_1588_VER \
+ (IS2_HKO_IP4_TCP_UDP_L4_1588_DOM + IS2_HKL_IP4_TCP_UDP_L4_1588_DOM)
+#define IS2_HKL_IP4_TCP_UDP_L4_1588_VER 4
+
+/* IS2 half key - IP4_OTHER */
+#define IS2_HKO_IP4_OTHER_L3_PROTO IS2_HKO_IP4_TCP_UDP_TCP
+#define IS2_HKL_IP4_OTHER_L3_PROTO 8
+#define IS2_HKO_IP4_OTHER_L3_PAYLOAD \
+ (IS2_HKO_IP4_OTHER_L3_PROTO + IS2_HKL_IP4_OTHER_L3_PROTO)
+#define IS2_HKL_IP4_OTHER_L3_PAYLOAD 56
+
+/* IS2 half key - IP6_STD */
+#define IS2_HKO_IP6_STD_L3_TTL_GT0 IS2_HKO_L2_DMAC
+#define IS2_HKL_IP6_STD_L3_TTL_GT0 1
+#define IS2_HKO_IP6_STD_L3_IP6_SIP \
+ (IS2_HKO_IP6_STD_L3_TTL_GT0 + IS2_HKL_IP6_STD_L3_TTL_GT0)
+#define IS2_HKL_IP6_STD_L3_IP6_SIP 128
+#define IS2_HKO_IP6_STD_L3_PROTO \
+ (IS2_HKO_IP6_STD_L3_IP6_SIP + IS2_HKL_IP6_STD_L3_IP6_SIP)
+#define IS2_HKL_IP6_STD_L3_PROTO 8
+
+/* IS2 half key - OAM */
+#define IS2_HKO_OAM_OAM_MEL_FLAGS IS2_HKO_MAC_ETYPE_ETYPE
+#define IS2_HKL_OAM_OAM_MEL_FLAGS 7
+#define IS2_HKO_OAM_OAM_VER \
+ (IS2_HKO_OAM_OAM_MEL_FLAGS + IS2_HKL_OAM_OAM_MEL_FLAGS)
+#define IS2_HKL_OAM_OAM_VER 5
+#define IS2_HKO_OAM_OAM_OPCODE (IS2_HKO_OAM_OAM_VER + IS2_HKL_OAM_OAM_VER)
+#define IS2_HKL_OAM_OAM_OPCODE 8
+#define IS2_HKO_OAM_OAM_FLAGS (IS2_HKO_OAM_OAM_OPCODE + IS2_HKL_OAM_OAM_OPCODE)
+#define IS2_HKL_OAM_OAM_FLAGS 8
+#define IS2_HKO_OAM_OAM_MEPID (IS2_HKO_OAM_OAM_FLAGS + IS2_HKL_OAM_OAM_FLAGS)
+#define IS2_HKL_OAM_OAM_MEPID 16
+#define IS2_HKO_OAM_OAM_CCM_CNTS_EQ0 \
+ (IS2_HKO_OAM_OAM_MEPID + IS2_HKL_OAM_OAM_MEPID)
+#define IS2_HKL_OAM_OAM_CCM_CNTS_EQ0 1
+
+/* IS2 half key - SMAC_SIP6 */
+#define IS2_HKO_SMAC_SIP6_IGR_PORT IS2_HKL_TYPE
+#define IS2_HKL_SMAC_SIP6_IGR_PORT VCAP_PORT_WIDTH
+#define IS2_HKO_SMAC_SIP6_L2_SMAC \
+ (IS2_HKO_SMAC_SIP6_IGR_PORT + IS2_HKL_SMAC_SIP6_IGR_PORT)
+#define IS2_HKL_SMAC_SIP6_L2_SMAC 48
+#define IS2_HKO_SMAC_SIP6_L3_IP6_SIP \
+ (IS2_HKO_SMAC_SIP6_L2_SMAC + IS2_HKL_SMAC_SIP6_L2_SMAC)
+#define IS2_HKL_SMAC_SIP6_L3_IP6_SIP 128
+
+/* IS2 full key - common */
+#define IS2_FKO_TYPE 0
+#define IS2_FKL_TYPE 2
+#define IS2_FKO_FIRST (IS2_FKO_TYPE + IS2_FKL_TYPE)
+#define IS2_FKL_FIRST 1
+#define IS2_FKO_PAG (IS2_FKO_FIRST + IS2_FKL_FIRST)
+#define IS2_FKL_PAG 8
+#define IS2_FKO_IGR_PORT_MASK (IS2_FKO_PAG + IS2_FKL_PAG)
+#define IS2_FKL_IGR_PORT_MASK (VCAP_PORT_CNT + 1)
+#define IS2_FKO_SERVICE_FRM (IS2_FKO_IGR_PORT_MASK + IS2_FKL_IGR_PORT_MASK)
+#define IS2_FKL_SERVICE_FRM 1
+#define IS2_FKO_HOST_MATCH (IS2_FKO_SERVICE_FRM + IS2_FKL_SERVICE_FRM)
+#define IS2_FKL_HOST_MATCH 1
+#define IS2_FKO_L2_MC (IS2_FKO_HOST_MATCH + IS2_FKL_HOST_MATCH)
+#define IS2_FKL_L2_MC 1
+#define IS2_FKO_L2_BC (IS2_FKO_L2_MC + IS2_FKL_L2_MC)
+#define IS2_FKL_L2_BC 1
+#define IS2_FKO_VLAN_TAGGED (IS2_FKO_L2_BC + IS2_FKL_L2_BC)
+#define IS2_FKL_VLAN_TAGGED 1
+#define IS2_FKO_VID (IS2_FKO_VLAN_TAGGED + IS2_FKL_VLAN_TAGGED)
+#define IS2_FKL_VID 12
+#define IS2_FKO_DEI (IS2_FKO_VID + IS2_FKL_VID)
+#define IS2_FKL_DEI 1
+#define IS2_FKO_PCP (IS2_FKO_DEI + IS2_FKL_DEI)
+#define IS2_FKL_PCP 3
+
+/* IS2 full key - IP6_TCP_UDP/IP6_OTHER common */
+#define IS2_FKO_L3_TTL_GT0 (IS2_FKO_PCP + IS2_FKL_PCP)
+#define IS2_FKL_L3_TTL_GT0 1
+#define IS2_FKO_L3_TOS (IS2_FKO_L3_TTL_GT0 + IS2_FKL_L3_TTL_GT0)
+#define IS2_FKL_L3_TOS 8
+#define IS2_FKO_L3_IP6_DIP (IS2_FKO_L3_TOS + IS2_FKL_L3_TOS)
+#define IS2_FKL_L3_IP6_DIP 128
+#define IS2_FKO_L3_IP6_SIP (IS2_FKO_L3_IP6_DIP + IS2_FKL_L3_IP6_DIP)
+#define IS2_FKL_L3_IP6_SIP 128
+#define IS2_FKO_DIP_EQ_SIP (IS2_FKO_L3_IP6_SIP + IS2_FKL_L3_IP6_SIP)
+#define IS2_FKL_DIP_EQ_SIP 1
+
+/* IS2 full key - IP6_TCP_UDP */
+#define IS2_FKO_IP6_TCP_UDP_TCP (IS2_FKO_DIP_EQ_SIP + IS2_FKL_DIP_EQ_SIP)
+#define IS2_FKL_IP6_TCP_UDP_TCP 1
+#define IS2_FKO_IP6_TCP_UDP_L4_DPORT \
+ (IS2_FKO_IP6_TCP_UDP_TCP + IS2_FKL_IP6_TCP_UDP_TCP)
+#define IS2_FKL_IP6_TCP_UDP_L4_DPORT 16
+#define IS2_FKO_IP6_TCP_UDP_L4_SPORT \
+ (IS2_FKO_IP6_TCP_UDP_L4_DPORT + IS2_FKL_IP6_TCP_UDP_L4_DPORT)
+#define IS2_FKL_IP6_TCP_UDP_L4_SPORT 16
+#define IS2_FKO_IP6_TCP_UDP_L4_RNG \
+ (IS2_FKO_IP6_TCP_UDP_L4_SPORT + IS2_FKL_IP6_TCP_UDP_L4_SPORT)
+#define IS2_FKL_IP6_TCP_UDP_L4_RNG 8
+#define IS2_FKO_IP6_TCP_UDP_SPORT_EQ_DPORT \
+ (IS2_FKO_IP6_TCP_UDP_L4_RNG + IS2_FKL_IP6_TCP_UDP_L4_RNG)
+#define IS2_FKL_IP6_TCP_UDP_SPORT_EQ_DPORT 1
+#define IS2_FKO_IP6_TCP_UDP_SEQUENCE_EQ0 \
+ (IS2_FKO_IP6_TCP_UDP_SPORT_EQ_DPORT + \
+ IS2_FKL_IP6_TCP_UDP_SPORT_EQ_DPORT)
+#define IS2_FKL_IP6_TCP_UDP_SEQUENCE_EQ0 1
+#define IS2_FKO_IP6_TCP_UDP_L4_FIN \
+ (IS2_FKO_IP6_TCP_UDP_SEQUENCE_EQ0 + IS2_FKL_IP6_TCP_UDP_SEQUENCE_EQ0)
+#define IS2_FKL_IP6_TCP_UDP_L4_FIN 1
+#define IS2_FKO_IP6_TCP_UDP_L4_SYN \
+ (IS2_FKO_IP6_TCP_UDP_L4_FIN + IS2_FKL_IP6_TCP_UDP_L4_FIN)
+#define IS2_FKL_IP6_TCP_UDP_L4_SYN 1
+#define IS2_FKO_IP6_TCP_UDP_L4_RST \
+ (IS2_FKO_IP6_TCP_UDP_L4_SYN + IS2_FKL_IP6_TCP_UDP_L4_SYN)
+#define IS2_FKL_IP6_TCP_UDP_L4_RST 1
+#define IS2_FKO_IP6_TCP_UDP_L4_PSH \
+ (IS2_FKO_IP6_TCP_UDP_L4_RST + IS2_FKL_IP6_TCP_UDP_L4_RST)
+#define IS2_FKL_IP6_TCP_UDP_L4_PSH 1
+#define IS2_FKO_IP6_TCP_UDP_L4_ACK \
+ (IS2_FKO_IP6_TCP_UDP_L4_PSH + IS2_FKL_IP6_TCP_UDP_L4_PSH)
+#define IS2_FKL_IP6_TCP_UDP_L4_ACK 1
+#define IS2_FKO_IP6_TCP_UDP_L4_URG \
+ (IS2_FKO_IP6_TCP_UDP_L4_ACK + IS2_FKL_IP6_TCP_UDP_L4_ACK)
+#define IS2_FKL_IP6_TCP_UDP_L4_URG 1
+#define IS2_FKO_IP6_TCP_UDP_L4_1588_DOM \
+ (IS2_FKO_IP6_TCP_UDP_L4_URG + IS2_FKL_IP6_TCP_UDP_L4_URG)
+#define IS2_FKL_IP6_TCP_UDP_L4_1588_DOM 8
+#define IS2_FKO_IP6_TCP_UDP_L4_1588_VER \
+ (IS2_FKO_IP6_TCP_UDP_L4_1588_DOM + IS2_FKL_IP6_TCP_UDP_L4_1588_DOM)
+#define IS2_FKL_IP6_TCP_UDP_L4_1588_VER 4
+
+/* IS2 full key - IP6_OTHER */
+#define IS2_FKO_IP6_OTHER_L3_PROTO IS2_FKO_IP6_TCP_UDP_TCP
+#define IS2_FKL_IP6_OTHER_L3_PROTO 8
+#define IS2_FKO_IP6_OTHER_L3_PAYLOAD \
+ (IS2_FKO_IP6_OTHER_L3_PROTO + IS2_FKL_IP6_OTHER_L3_PROTO)
+#define IS2_FKL_IP6_OTHER_L3_PAYLOAD 56
+
+/* IS2 full key - CUSTOM */
+#define IS2_FKO_CUSTOM_CUSTOM_TYPE IS2_FKO_L3_TTL_GT0
+#define IS2_FKL_CUSTOM_CUSTOM_TYPE 1
+#define IS2_FKO_CUSTOM_CUSTOM \
+ (IS2_FKO_CUSTOM_CUSTOM_TYPE + IS2_FKL_CUSTOM_CUSTOM_TYPE)
+#define IS2_FKL_CUSTOM_CUSTOM 320
+
+/* IS2 action - BASE_TYPE */
+#define IS2_AO_HIT_ME_ONCE 0
+#define IS2_AL_HIT_ME_ONCE 1
+#define IS2_AO_CPU_COPY_ENA (IS2_AO_HIT_ME_ONCE + IS2_AL_HIT_ME_ONCE)
+#define IS2_AL_CPU_COPY_ENA 1
+#define IS2_AO_CPU_QU_NUM (IS2_AO_CPU_COPY_ENA + IS2_AL_CPU_COPY_ENA)
+#define IS2_AL_CPU_QU_NUM 3
+#define IS2_AO_MASK_MODE (IS2_AO_CPU_QU_NUM + IS2_AL_CPU_QU_NUM)
+#define IS2_AL_MASK_MODE 2
+#define IS2_AO_MIRROR_ENA (IS2_AO_MASK_MODE + IS2_AL_MASK_MODE)
+#define IS2_AL_MIRROR_ENA 1
+#define IS2_AO_LRN_DIS (IS2_AO_MIRROR_ENA + IS2_AL_MIRROR_ENA)
+#define IS2_AL_LRN_DIS 1
+#define IS2_AO_POLICE_ENA (IS2_AO_LRN_DIS + IS2_AL_LRN_DIS)
+#define IS2_AL_POLICE_ENA 1
+#define IS2_AO_POLICE_IDX (IS2_AO_POLICE_ENA + IS2_AL_POLICE_ENA)
+#define IS2_AL_POLICE_IDX 9
+#define IS2_AO_POLICE_VCAP_ONLY (IS2_AO_POLICE_IDX + IS2_AL_POLICE_IDX)
+#define IS2_AL_POLICE_VCAP_ONLY 1
+#define IS2_AO_PORT_MASK (IS2_AO_POLICE_VCAP_ONLY + IS2_AL_POLICE_VCAP_ONLY)
+#define IS2_AL_PORT_MASK VCAP_PORT_CNT
+#define IS2_AO_REW_OP (IS2_AO_PORT_MASK + IS2_AL_PORT_MASK)
+#define IS2_AL_REW_OP 9
+#define IS2_AO_LM_CNT_DIS (IS2_AO_REW_OP + IS2_AL_REW_OP)
+#define IS2_AL_LM_CNT_DIS 1
+#define IS2_AO_ISDX_ENA \
+ (IS2_AO_LM_CNT_DIS + IS2_AL_LM_CNT_DIS + 1) /* Reserved bit */
+#define IS2_AL_ISDX_ENA 1
+#define IS2_AO_ACL_ID (IS2_AO_ISDX_ENA + IS2_AL_ISDX_ENA)
+#define IS2_AL_ACL_ID 6
+
+/* IS2 action - SMAC_SIP */
+#define IS2_AO_SMAC_SIP_CPU_COPY_ENA 0
+#define IS2_AL_SMAC_SIP_CPU_COPY_ENA 1
+#define IS2_AO_SMAC_SIP_CPU_QU_NUM 1
+#define IS2_AL_SMAC_SIP_CPU_QU_NUM 3
+#define IS2_AO_SMAC_SIP_FWD_KILL_ENA 4
+#define IS2_AL_SMAC_SIP_FWD_KILL_ENA 1
+#define IS2_AO_SMAC_SIP_HOST_MATCH 5
+#define IS2_AL_SMAC_SIP_HOST_MATCH 1
+
+#endif /* _OCELOT_VCAP_H_ */
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH net-next v2 2/2] net: mscc: ocelot: Hardware ofload for tc flower filter
2019-05-29 10:26 [PATCH net-next v2 0/2] Add hw offload of TC flower on MSCC Ocelot Horatiu Vultur
2019-05-29 10:26 ` [PATCH net-next v2 1/2] net: mscc: ocelot: Add support for tcam Horatiu Vultur
@ 2019-05-29 10:26 ` Horatiu Vultur
2019-05-29 22:18 ` Jakub Kicinski
1 sibling, 1 reply; 5+ messages in thread
From: Horatiu Vultur @ 2019-05-29 10:26 UTC (permalink / raw)
Cc: Horatiu Vultur, Alexandre Belloni,
Microchip Linux Driver Support, Rob Herring, Mark Rutland,
Ralf Baechle, Paul Burton, James Hogan, David S. Miller,
linux-mips, devicetree, linux-kernel, netdev
Hardware offload of port filtering are now supported via tc command using
flower filter. ACL rules are used to enable the hardware offload.
The following keys are supported:
vlan_id
vlan_prio
dst_mac/src_mac for non IP frames
dst_ip/src_ip
dst_port/src_port
The following actions are supported:
trap
drop
These filters are supported only on the ingress schedulare.
Add:
tc qdisc add dev eth3 ingress
tc filter ad dev eth3 parent ffff: ip_proto ip flower \
ip_proto tcp dst_port 80 action drop
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
drivers/net/ethernet/mscc/Makefile | 2 +-
drivers/net/ethernet/mscc/ocelot_ace.h | 5 +
drivers/net/ethernet/mscc/ocelot_flower.c | 360 ++++++++++++++++++++++++++++++
drivers/net/ethernet/mscc/ocelot_tc.c | 16 +-
4 files changed, 376 insertions(+), 7 deletions(-)
create mode 100644 drivers/net/ethernet/mscc/ocelot_flower.c
diff --git a/drivers/net/ethernet/mscc/Makefile b/drivers/net/ethernet/mscc/Makefile
index bf4a710..9a36c26 100644
--- a/drivers/net/ethernet/mscc/Makefile
+++ b/drivers/net/ethernet/mscc/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: (GPL-2.0 OR MIT)
obj-$(CONFIG_MSCC_OCELOT_SWITCH) += mscc_ocelot_common.o
mscc_ocelot_common-y := ocelot.o ocelot_io.o
-mscc_ocelot_common-y += ocelot_regs.o ocelot_tc.o ocelot_police.o ocelot_ace.o
+mscc_ocelot_common-y += ocelot_regs.o ocelot_tc.o ocelot_police.o ocelot_ace.o ocelot_flower.o
obj-$(CONFIG_MSCC_OCELOT_SWITCH_OCELOT) += ocelot_board.o
diff --git a/drivers/net/ethernet/mscc/ocelot_ace.h b/drivers/net/ethernet/mscc/ocelot_ace.h
index c84e608..d621683 100644
--- a/drivers/net/ethernet/mscc/ocelot_ace.h
+++ b/drivers/net/ethernet/mscc/ocelot_ace.h
@@ -224,4 +224,9 @@ int ocelot_ace_rule_stats_update(struct ocelot_ace_rule *rule);
int ocelot_ace_init(struct ocelot *ocelot);
void ocelot_ace_deinit(void);
+int ocelot_setup_tc_block_flower_bind(struct ocelot_port *port,
+ struct tc_block_offload *f);
+void ocelot_setup_tc_block_flower_unbind(struct ocelot_port *port,
+ struct tc_block_offload *f);
+
#endif /* _MSCC_OCELOT_ACE_H_ */
diff --git a/drivers/net/ethernet/mscc/ocelot_flower.c b/drivers/net/ethernet/mscc/ocelot_flower.c
new file mode 100644
index 0000000..efbe008
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot_flower.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Microsemi Ocelot Switch driver
+ * Copyright (c) 2019 Microsemi Corporation
+ */
+
+#include <net/pkt_cls.h>
+#include <net/tc_act/tc_gact.h>
+
+#include "ocelot_ace.h"
+
+struct ocelot_port_block {
+ struct ocelot_acl_block *block;
+ struct ocelot_port *port;
+};
+
+static u16 get_prio(u32 prio)
+{
+ /* prio starts from 0x1000 while the ids starts from 0 */
+ return prio >> 16;
+}
+
+static int ocelot_flower_parse_action(struct tc_cls_flower_offload *f,
+ struct ocelot_ace_rule *rule)
+{
+ const struct flow_action_entry *a;
+ int i;
+
+ if (f->rule->action.num_entries != 1)
+ return -EOPNOTSUPP;
+
+ flow_action_for_each(i, a, &f->rule->action) {
+ switch (a->id) {
+ case FLOW_ACTION_DROP:
+ rule->action = OCELOT_ACL_ACTION_DROP;
+ break;
+ case FLOW_ACTION_TRAP:
+ rule->action = OCELOT_ACL_ACTION_TRAP;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+ }
+
+ return 0;
+}
+
+static int ocelot_flower_parse(struct tc_cls_flower_offload *f,
+ struct ocelot_ace_rule *ocelot_rule)
+{
+ struct flow_rule *rule = tc_cls_flower_offload_flow_rule(f);
+ struct flow_dissector *dissector = rule->match.dissector;
+
+ if (dissector->used_keys &
+ ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
+ BIT(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT(FLOW_DISSECTOR_KEY_PORTS) |
+ BIT(FLOW_DISSECTOR_KEY_VLAN) |
+ BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS))) {
+ return -EOPNOTSUPP;
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
+ struct flow_match_control match;
+
+ flow_rule_match_control(rule, &match);
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
+ struct flow_match_eth_addrs match;
+ u16 proto = ntohs(f->common.protocol);
+
+ /* The hw support mac matches only for MAC_ETYPE key,
+ * therefore if other matches(port, tcp flags, etc) are added
+ * then just bail out
+ */
+ if ((dissector->used_keys &
+ (BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT(FLOW_DISSECTOR_KEY_CONTROL))) !=
+ (BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT(FLOW_DISSECTOR_KEY_CONTROL)))
+ return -EOPNOTSUPP;
+
+ if (proto == ETH_P_IP ||
+ proto == ETH_P_IPV6 ||
+ proto == ETH_P_ARP)
+ return -EOPNOTSUPP;
+
+ flow_rule_match_eth_addrs(rule, &match);
+ ocelot_rule->type = OCELOT_ACE_TYPE_ETYPE;
+ ether_addr_copy(ocelot_rule->frame.etype.dmac.value,
+ match.key->dst);
+ ether_addr_copy(ocelot_rule->frame.etype.smac.value,
+ match.key->src);
+ ether_addr_copy(ocelot_rule->frame.etype.dmac.mask,
+ match.mask->dst);
+ ether_addr_copy(ocelot_rule->frame.etype.smac.mask,
+ match.mask->src);
+ goto finished_key_parsing;
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
+ struct flow_match_basic match;
+
+ flow_rule_match_basic(rule, &match);
+ if (ntohs(match.key->n_proto) == ETH_P_IP) {
+ ocelot_rule->type = OCELOT_ACE_TYPE_IPV4;
+ ocelot_rule->frame.ipv4.proto.value[0] =
+ match.key->ip_proto;
+ ocelot_rule->frame.ipv4.proto.mask[0] =
+ match.mask->ip_proto;
+ }
+ if (ntohs(match.key->n_proto) == ETH_P_IPV6) {
+ ocelot_rule->type = OCELOT_ACE_TYPE_IPV6;
+ ocelot_rule->frame.ipv6.proto.value[0] =
+ match.key->ip_proto;
+ ocelot_rule->frame.ipv6.proto.mask[0] =
+ match.mask->ip_proto;
+ }
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS) &&
+ ntohs(f->common.protocol) == ETH_P_IP) {
+ struct flow_match_ipv4_addrs match;
+ u8 *tmp;
+
+ flow_rule_match_ipv4_addrs(rule, &match);
+ tmp = &ocelot_rule->frame.ipv4.sip.value.addr[0];
+ memcpy(tmp, &match.key->src, 4);
+
+ tmp = &ocelot_rule->frame.ipv4.sip.mask.addr[0];
+ memcpy(tmp, &match.mask->src, 4);
+
+ tmp = &ocelot_rule->frame.ipv4.dip.value.addr[0];
+ memcpy(tmp, &match.key->dst, 4);
+
+ tmp = &ocelot_rule->frame.ipv4.dip.mask.addr[0];
+ memcpy(tmp, &match.mask->dst, 4);
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS) &&
+ ntohs(f->common.protocol) == ETH_P_IPV6) {
+ return -EOPNOTSUPP;
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
+ struct flow_match_ports match;
+
+ flow_rule_match_ports(rule, &match);
+ ocelot_rule->frame.ipv4.sport.value = ntohs(match.key->src);
+ ocelot_rule->frame.ipv4.sport.mask = ntohs(match.mask->src);
+ ocelot_rule->frame.ipv4.dport.value = ntohs(match.key->dst);
+ ocelot_rule->frame.ipv4.dport.mask = ntohs(match.mask->dst);
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
+ struct flow_match_vlan match;
+
+ flow_rule_match_vlan(rule, &match);
+ ocelot_rule->type = OCELOT_ACE_TYPE_ANY;
+ ocelot_rule->vlan.vid.value = match.key->vlan_id;
+ ocelot_rule->vlan.vid.mask = match.mask->vlan_id;
+ ocelot_rule->vlan.pcp.value[0] = match.key->vlan_priority;
+ ocelot_rule->vlan.pcp.mask[0] = match.mask->vlan_priority;
+ }
+
+finished_key_parsing:
+ ocelot_rule->prio = get_prio(f->common.prio);
+ ocelot_rule->id = f->cookie;
+ return ocelot_flower_parse_action(f, ocelot_rule);
+}
+
+static
+struct ocelot_ace_rule *ocelot_ace_rule_create(struct tc_cls_flower_offload *f,
+ struct ocelot_port_block *block)
+{
+ struct ocelot_ace_rule *rule;
+
+ rule = kzalloc(sizeof(*rule), GFP_KERNEL);
+ if (!rule)
+ return NULL;
+
+ rule->port = block->port;
+ rule->chip_port = block->port->chip_port;
+ return rule;
+}
+
+static int ocelot_flower_replace(struct tc_cls_flower_offload *f,
+ struct ocelot_port_block *port_block)
+{
+ struct ocelot_ace_rule *rule;
+ int ret;
+
+ if (port_block->port->tc.block_shared)
+ return -EOPNOTSUPP;
+
+ rule = ocelot_ace_rule_create(f, port_block);
+ if (!rule)
+ return -ENOMEM;
+
+ ret = ocelot_flower_parse(f, rule);
+ if (ret) {
+ kfree(rule);
+ return ret;
+ }
+
+ ret = ocelot_ace_rule_offload_add(rule);
+ if (ret)
+ return ret;
+
+ port_block->port->tc.offload_cnt++;
+ return 0;
+}
+
+static int ocelot_flower_destroy(struct tc_cls_flower_offload *f,
+ struct ocelot_port_block *port_block)
+{
+ struct ocelot_ace_rule rule;
+ int ret;
+
+ rule.prio = get_prio(f->common.prio);
+ rule.port = port_block->port;
+ rule.id = f->cookie;
+
+ ret = ocelot_ace_rule_offload_del(&rule);
+ if (ret)
+ return ret;
+
+ port_block->port->tc.offload_cnt--;
+ return 0;
+}
+
+static int ocelot_flower_stats_update(struct tc_cls_flower_offload *f,
+ struct ocelot_port_block *port_block)
+{
+ struct ocelot_ace_rule rule;
+ int ret;
+
+ rule.prio = get_prio(f->common.prio);
+ rule.port = port_block->port;
+ rule.id = f->cookie;
+ ret = ocelot_ace_rule_stats_update(&rule);
+ if (ret)
+ return ret;
+
+ flow_stats_update(&f->stats, 0x0, rule.stats.pkts, 0x0);
+ return 0;
+}
+
+static int ocelot_setup_tc_cls_flower(struct tc_cls_flower_offload *f,
+ struct ocelot_port_block *port_block)
+{
+ switch (f->command) {
+ case TC_CLSFLOWER_REPLACE:
+ return ocelot_flower_replace(f, port_block);
+ case TC_CLSFLOWER_DESTROY:
+ return ocelot_flower_destroy(f, port_block);
+ case TC_CLSFLOWER_STATS:
+ return ocelot_flower_stats_update(f, port_block);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int ocelot_setup_tc_block_cb_flower(enum tc_setup_type type,
+ void *type_data, void *cb_priv)
+{
+ struct ocelot_port_block *port_block = cb_priv;
+
+ if (!tc_cls_can_offload_and_chain0(port_block->port->dev, type_data))
+ return -EOPNOTSUPP;
+
+ switch (type) {
+ case TC_SETUP_CLSFLOWER:
+ return ocelot_setup_tc_cls_flower(type_data, cb_priv);
+ case TC_SETUP_CLSMATCHALL:
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static struct ocelot_port_block*
+ocelot_port_block_create(struct ocelot_port *port)
+{
+ struct ocelot_port_block *port_block;
+
+ port_block = kzalloc(sizeof(*port_block), GFP_KERNEL);
+ if (!port_block)
+ return NULL;
+
+ port_block->port = port;
+
+ return port_block;
+}
+
+static void ocelot_port_block_destroy(struct ocelot_port_block *block)
+{
+ kfree(block);
+}
+
+int ocelot_setup_tc_block_flower_bind(struct ocelot_port *port,
+ struct tc_block_offload *f)
+{
+ struct ocelot_port_block *port_block;
+ struct tcf_block_cb *block_cb;
+ int ret;
+
+ if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS)
+ return -EOPNOTSUPP;
+
+ block_cb = tcf_block_cb_lookup(f->block,
+ ocelot_setup_tc_block_cb_flower, port);
+ if (!block_cb) {
+ port_block = ocelot_port_block_create(port);
+ if (!port_block)
+ return -ENOMEM;
+
+ block_cb =
+ __tcf_block_cb_register(f->block,
+ ocelot_setup_tc_block_cb_flower,
+ port, port_block, f->extack);
+ if (IS_ERR(block_cb)) {
+ ret = PTR_ERR(block_cb);
+ goto err_cb_register;
+ }
+ } else {
+ port_block = tcf_block_cb_priv(block_cb);
+ }
+
+ tcf_block_cb_incref(block_cb);
+ return 0;
+
+err_cb_register:
+ ocelot_port_block_destroy(port_block);
+
+ return ret;
+}
+
+void ocelot_setup_tc_block_flower_unbind(struct ocelot_port *port,
+ struct tc_block_offload *f)
+{
+ struct ocelot_port_block *port_block;
+ struct tcf_block_cb *block_cb;
+
+ block_cb = tcf_block_cb_lookup(f->block,
+ ocelot_setup_tc_block_cb_flower, port);
+ if (!block_cb)
+ return;
+
+ port_block = tcf_block_cb_priv(block_cb);
+ if (!tcf_block_cb_decref(block_cb)) {
+ tcf_block_cb_unregister(f->block,
+ ocelot_setup_tc_block_cb_flower, port);
+ ocelot_port_block_destroy(port_block);
+ }
+}
diff --git a/drivers/net/ethernet/mscc/ocelot_tc.c b/drivers/net/ethernet/mscc/ocelot_tc.c
index a0eaadc..7208430 100644
--- a/drivers/net/ethernet/mscc/ocelot_tc.c
+++ b/drivers/net/ethernet/mscc/ocelot_tc.c
@@ -6,6 +6,7 @@
#include "ocelot_tc.h"
#include "ocelot_police.h"
+#include "ocelot_ace.h"
#include <net/pkt_cls.h>
static int ocelot_setup_tc_cls_matchall(struct ocelot_port *port,
@@ -101,10 +102,7 @@ static int ocelot_setup_tc_block_cb(enum tc_setup_type type,
return ocelot_setup_tc_cls_matchall(port, type_data, ingress);
case TC_SETUP_CLSFLOWER:
- netdev_dbg(port->dev, "tc_block_cb: TC_SETUP_CLSFLOWER %s\n",
- ingress ? "ingress" : "egress");
-
- return -EOPNOTSUPP;
+ return 0;
default:
netdev_dbg(port->dev, "tc_block_cb: type %d %s\n",
type,
@@ -134,6 +132,7 @@ static int ocelot_setup_tc_block(struct ocelot_port *port,
struct tc_block_offload *f)
{
tc_setup_cb_t *cb;
+ int ret;
netdev_dbg(port->dev, "tc_block command %d, binder_type %d\n",
f->command, f->binder_type);
@@ -149,9 +148,14 @@ static int ocelot_setup_tc_block(struct ocelot_port *port,
switch (f->command) {
case TC_BLOCK_BIND:
- return tcf_block_cb_register(f->block, cb, port,
- port, f->extack);
+ ret = tcf_block_cb_register(f->block, cb, port,
+ port, f->extack);
+ if (ret)
+ return ret;
+
+ return ocelot_setup_tc_block_flower_bind(port, f);
case TC_BLOCK_UNBIND:
+ ocelot_setup_tc_block_flower_unbind(port, f);
tcf_block_cb_unregister(f->block, cb, port);
return 0;
default:
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread