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Commit 6a4b02b8 authored by Petr Machata's avatar Petr Machata Committed by Jakub Kicinski
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mlxsw: Revert "Introduce initial XM router support" 

This reverts commit 75c2a8fe ("Merge branch
'mlxsw-introduce-initial-xm-router-support'").
Signed-off-by: default avatarPetr Machata <petrm@nvidia.com>
Signed-off-by: default avatarIdo Schimmel <idosch@nvidia.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 6ac6dc74
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Inline Side-by-side
Showing with 8 additions and 1518 deletions
drivers/net/ethernet/mellanox/mlxsw/Makefile
View file @ 6a4b02b8
......@@ -12,7 +12,6 @@ mlxsw_i2c-objs := i2c.o
obj-$(CONFIG_MLXSW_SPECTRUM) += mlxsw_spectrum.o
mlxsw_spectrum-objs := spectrum.o spectrum_buffers.o \
spectrum_switchdev.o spectrum_router.o \
spectrum_router_xm.o \
spectrum1_kvdl.o spectrum2_kvdl.o \
spectrum_kvdl.o \
spectrum_acl_tcam.o spectrum_acl_ctcam.o \
......
drivers/net/ethernet/mellanox/mlxsw/cmd.h
View file @ 6a4b02b8
......@@ -343,23 +343,6 @@ static inline int mlxsw_cmd_boardinfo(struct mlxsw_core *mlxsw_core,
0, 0, false, out_mbox, MLXSW_CMD_MBOX_SIZE);
}
/* cmd_mbox_xm_num_local_ports
* Number of local_ports connected to the xm.
* Each local port is a 4x
* Spectrum-2/3: 25G
* Spectrum-4: 50G
*/
MLXSW_ITEM32(cmd_mbox, boardinfo, xm_num_local_ports, 0x00, 4, 3);
/* cmd_mbox_xm_exists
* An XM (eXtanded Mezanine, e.g. used for the XLT) is connected on the board.
*/
MLXSW_ITEM32(cmd_mbox, boardinfo, xm_exists, 0x00, 0, 1);
/* cmd_mbox_xm_local_port_entry
*/
MLXSW_ITEM_BIT_ARRAY(cmd_mbox, boardinfo, xm_local_port_entry, 0x04, 4, 8);
/* cmd_mbox_boardinfo_intapin
* When PCIe interrupt messages are being used, this value is used for clearing
* an interrupt. When using MSI-X, this register is not used.
......@@ -674,12 +657,6 @@ MLXSW_ITEM32(cmd_mbox, config_profile, set_kvd_hash_double_size, 0x0C, 26, 1);
*/
MLXSW_ITEM32(cmd_mbox, config_profile, set_cqe_version, 0x08, 0, 1);
/* cmd_mbox_config_set_kvh_xlt_cache_mode
* Capability bit. Setting a bit to 1 configures the profile
* according to the mailbox contents.
*/
MLXSW_ITEM32(cmd_mbox, config_profile, set_kvh_xlt_cache_mode, 0x08, 3, 1);
/* cmd_mbox_config_profile_max_vepa_channels
* Maximum number of VEPA channels per port (0 through 16)
* 0 - multi-channel VEPA is disabled
......@@ -806,13 +783,6 @@ MLXSW_ITEM32(cmd_mbox, config_profile, adaptive_routing_group_cap, 0x4C, 0, 16);
*/
MLXSW_ITEM32(cmd_mbox, config_profile, arn, 0x50, 31, 1);
/* cmd_mbox_config_profile_kvh_xlt_cache_mode
* KVH XLT cache mode:
* 0 - XLT can use all KVH as best-effort
* 1 - XLT cache uses 1/2 KVH
*/
MLXSW_ITEM32(cmd_mbox, config_profile, kvh_xlt_cache_mode, 0x50, 8, 4);
/* cmd_mbox_config_kvd_linear_size
* KVD Linear Size
* Valid for Spectrum only
......
drivers/net/ethernet/mellanox/mlxsw/core.c
View file @ 6a4b02b8
......@@ -3151,18 +3151,6 @@ mlxsw_core_port_linecard_get(struct mlxsw_core *mlxsw_core,
return mlxsw_core_port->linecard;
}
bool mlxsw_core_port_is_xm(const struct mlxsw_core *mlxsw_core, u16 local_port)
{
const struct mlxsw_bus_info *bus_info = mlxsw_core->bus_info;
int i;
for (i = 0; i < bus_info->xm_local_ports_count; i++)
if (bus_info->xm_local_ports[i] == local_port)
return true;
return false;
}
EXPORT_SYMBOL(mlxsw_core_port_is_xm);
void mlxsw_core_ports_remove_selected(struct mlxsw_core *mlxsw_core,
bool (*selector)(void *priv, u16 local_port),
void *priv)
......
drivers/net/ethernet/mellanox/mlxsw/core.h
View file @ 6a4b02b8
......@@ -261,7 +261,6 @@ mlxsw_core_port_devlink_port_get(struct mlxsw_core *mlxsw_core,
struct mlxsw_linecard *
mlxsw_core_port_linecard_get(struct mlxsw_core *mlxsw_core,
u16 local_port);
bool mlxsw_core_port_is_xm(const struct mlxsw_core *mlxsw_core, u16 local_port);
void mlxsw_core_ports_remove_selected(struct mlxsw_core *mlxsw_core,
bool (*selector)(void *priv,
u16 local_port),
......@@ -296,8 +295,7 @@ struct mlxsw_config_profile {
used_max_pkey:1,
used_ar_sec:1,
used_adaptive_routing_group_cap:1,
used_kvd_sizes:1,
used_kvh_xlt_cache_mode:1;
used_kvd_sizes:1;
u8 max_vepa_channels;
u16 max_mid;
u16 max_pgt;
......@@ -319,7 +317,6 @@ struct mlxsw_config_profile {
u32 kvd_linear_size;
u8 kvd_hash_single_parts;
u8 kvd_hash_double_parts;
u8 kvh_xlt_cache_mode;
struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT];
};
......@@ -478,8 +475,6 @@ struct mlxsw_fw_rev {
u16 can_reset_minor;
};
#define MLXSW_BUS_INFO_XM_LOCAL_PORTS_MAX 4
struct mlxsw_bus_info {
const char *device_kind;
const char *device_name;
......@@ -488,10 +483,7 @@ struct mlxsw_bus_info {
u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN];
u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN];
u8 low_frequency:1,
read_frc_capable:1,
xm_exists:1;
u8 xm_local_ports_count;
u8 xm_local_ports[MLXSW_BUS_INFO_XM_LOCAL_PORTS_MAX];
read_frc_capable:1;
};
struct mlxsw_hwmon;
......
drivers/net/ethernet/mellanox/mlxsw/minimal.c
View file @ 6a4b02b8
......@@ -359,8 +359,7 @@ static int mlxsw_m_ports_create(struct mlxsw_m *mlxsw_m)
/* Create port objects for each valid entry */
devl_lock(devlink);
for (i = 0; i < mlxsw_m->max_ports; i++) {
if (mlxsw_m->module_to_port[i] > 0 &&
!mlxsw_core_port_is_xm(mlxsw_m->core, i)) {
if (mlxsw_m->module_to_port[i] > 0) {
err = mlxsw_m_port_create(mlxsw_m,
mlxsw_m->module_to_port[i],
i);
......
drivers/net/ethernet/mellanox/mlxsw/pci.c
View file @ 6a4b02b8
......@@ -1252,12 +1252,6 @@ static int mlxsw_pci_config_profile(struct mlxsw_pci *mlxsw_pci, char *mbox,
mlxsw_cmd_mbox_config_profile_kvd_hash_double_size_set(mbox,
MLXSW_RES_GET(res, KVD_DOUBLE_SIZE));
}
if (profile->used_kvh_xlt_cache_mode) {
mlxsw_cmd_mbox_config_profile_set_kvh_xlt_cache_mode_set(
mbox, 1);
mlxsw_cmd_mbox_config_profile_kvh_xlt_cache_mode_set(
mbox, profile->kvh_xlt_cache_mode);
}
for (i = 0; i < MLXSW_CONFIG_PROFILE_SWID_COUNT; i++)
mlxsw_pci_config_profile_swid_config(mlxsw_pci, mbox, i,
......@@ -1271,30 +1265,6 @@ static int mlxsw_pci_config_profile(struct mlxsw_pci *mlxsw_pci, char *mbox,
return mlxsw_cmd_config_profile_set(mlxsw_pci->core, mbox);
}
static int mlxsw_pci_boardinfo_xm_process(struct mlxsw_pci *mlxsw_pci,
struct mlxsw_bus_info *bus_info,
char *mbox)
{
int count = mlxsw_cmd_mbox_boardinfo_xm_num_local_ports_get(mbox);
int i;
if (!mlxsw_cmd_mbox_boardinfo_xm_exists_get(mbox))
return 0;
bus_info->xm_exists = true;
if (count > MLXSW_BUS_INFO_XM_LOCAL_PORTS_MAX) {
dev_err(&mlxsw_pci->pdev->dev, "Invalid number of XM local ports\n");
return -EINVAL;
}
bus_info->xm_local_ports_count = count;
for (i = 0; i < count; i++)
bus_info->xm_local_ports[i] =
mlxsw_cmd_mbox_boardinfo_xm_local_port_entry_get(mbox,
i);
return 0;
}
static int mlxsw_pci_boardinfo(struct mlxsw_pci *mlxsw_pci, char *mbox)
{
struct mlxsw_bus_info *bus_info = &mlxsw_pci->bus_info;
......@@ -1306,8 +1276,7 @@ static int mlxsw_pci_boardinfo(struct mlxsw_pci *mlxsw_pci, char *mbox)
return err;
mlxsw_cmd_mbox_boardinfo_vsd_memcpy_from(mbox, bus_info->vsd);
mlxsw_cmd_mbox_boardinfo_psid_memcpy_from(mbox, bus_info->psid);
return mlxsw_pci_boardinfo_xm_process(mlxsw_pci, bus_info, mbox);
return 0;
}
static int mlxsw_pci_fw_area_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
......
drivers/net/ethernet/mellanox/mlxsw/reg.h
View file @ 6a4b02b8
......@@ -8926,582 +8926,10 @@ mlxsw_reg_rmft2_ipv6_pack(char *payload, bool v, u16 offset, u16 virtual_router,
mlxsw_reg_rmft2_sip6_mask_memcpy_to(payload, (void *)&sip6_mask);
}
/* RXLTE - Router XLT Enable Register
* ----------------------------------
* The RXLTE enables XLT (eXtended Lookup Table) LPM lookups if a capable
* XM is present on the system.
*/
#define MLXSW_REG_RXLTE_ID 0x8050
#define MLXSW_REG_RXLTE_LEN 0x0C
MLXSW_REG_DEFINE(rxlte, MLXSW_REG_RXLTE_ID, MLXSW_REG_RXLTE_LEN);
/* reg_rxlte_virtual_router
* Virtual router ID associated with the router interface.
* Range is 0..cap_max_virtual_routers-1
* Access: Index
*/
MLXSW_ITEM32(reg, rxlte, virtual_router, 0x00, 0, 16);
enum mlxsw_reg_rxlte_protocol {
MLXSW_REG_RXLTE_PROTOCOL_IPV4,
MLXSW_REG_RXLTE_PROTOCOL_IPV6,
};
/* reg_rxlte_protocol
* Access: Index
*/
MLXSW_ITEM32(reg, rxlte, protocol, 0x04, 0, 4);
/* reg_rxlte_lpm_xlt_en
* Access: RW
*/
MLXSW_ITEM32(reg, rxlte, lpm_xlt_en, 0x08, 0, 1);
static inline void mlxsw_reg_rxlte_pack(char *payload, u16 virtual_router,
enum mlxsw_reg_rxlte_protocol protocol,
bool lpm_xlt_en)
{
MLXSW_REG_ZERO(rxlte, payload);
mlxsw_reg_rxlte_virtual_router_set(payload, virtual_router);
mlxsw_reg_rxlte_protocol_set(payload, protocol);
mlxsw_reg_rxlte_lpm_xlt_en_set(payload, lpm_xlt_en);
}
/* RXLTM - Router XLT M select Register
* ------------------------------------
* The RXLTM configures and selects the M for the XM lookups.
*/
#define MLXSW_REG_RXLTM_ID 0x8051
#define MLXSW_REG_RXLTM_LEN 0x14
MLXSW_REG_DEFINE(rxltm, MLXSW_REG_RXLTM_ID, MLXSW_REG_RXLTM_LEN);
/* reg_rxltm_m0_val_v6
* Global M0 value For IPv6.
* Range 0..128
* Access: RW
*/
MLXSW_ITEM32(reg, rxltm, m0_val_v6, 0x10, 16, 8);
/* reg_rxltm_m0_val_v4
* Global M0 value For IPv4.
* Range 0..32
* Access: RW
*/
MLXSW_ITEM32(reg, rxltm, m0_val_v4, 0x10, 0, 6);
static inline void mlxsw_reg_rxltm_pack(char *payload, u8 m0_val_v4, u8 m0_val_v6)
{
MLXSW_REG_ZERO(rxltm, payload);
mlxsw_reg_rxltm_m0_val_v6_set(payload, m0_val_v6);
mlxsw_reg_rxltm_m0_val_v4_set(payload, m0_val_v4);
}
/* RLCMLD - Router LPM Cache ML Delete Register
* --------------------------------------------
* The RLCMLD register is used to bulk delete the XLT-LPM cache ML entries.
* This can be used by SW when L is increased or decreased, thus need to
* remove entries with old ML values.
*/
#define MLXSW_REG_RLCMLD_ID 0x8055
#define MLXSW_REG_RLCMLD_LEN 0x30
MLXSW_REG_DEFINE(rlcmld, MLXSW_REG_RLCMLD_ID, MLXSW_REG_RLCMLD_LEN);
enum mlxsw_reg_rlcmld_select {
MLXSW_REG_RLCMLD_SELECT_ML_ENTRIES,
MLXSW_REG_RLCMLD_SELECT_M_ENTRIES,
MLXSW_REG_RLCMLD_SELECT_M_AND_ML_ENTRIES,
};
/* reg_rlcmld_select
* Which entries to delete.
* Access: Index
*/
MLXSW_ITEM32(reg, rlcmld, select, 0x00, 16, 2);
enum mlxsw_reg_rlcmld_filter_fields {
MLXSW_REG_RLCMLD_FILTER_FIELDS_BY_PROTOCOL = 0x04,
MLXSW_REG_RLCMLD_FILTER_FIELDS_BY_VIRTUAL_ROUTER = 0x08,
MLXSW_REG_RLCMLD_FILTER_FIELDS_BY_DIP = 0x10,
};
/* reg_rlcmld_filter_fields
* If a bit is '0' then the relevant field is ignored.
* Access: Index
*/
MLXSW_ITEM32(reg, rlcmld, filter_fields, 0x00, 0, 8);
enum mlxsw_reg_rlcmld_protocol {
MLXSW_REG_RLCMLD_PROTOCOL_UC_IPV4,
MLXSW_REG_RLCMLD_PROTOCOL_UC_IPV6,
};
/* reg_rlcmld_protocol
* Access: Index
*/
MLXSW_ITEM32(reg, rlcmld, protocol, 0x08, 0, 4);
/* reg_rlcmld_virtual_router
* Virtual router ID.
* Range is 0..cap_max_virtual_routers-1
* Access: Index
*/
MLXSW_ITEM32(reg, rlcmld, virtual_router, 0x0C, 0, 16);
/* reg_rlcmld_dip
* The prefix of the route or of the marker that the object of the LPM
* is compared with. The most significant bits of the dip are the prefix.
* Access: Index
*/
MLXSW_ITEM32(reg, rlcmld, dip4, 0x1C, 0, 32);
MLXSW_ITEM_BUF(reg, rlcmld, dip6, 0x10, 16);
/* reg_rlcmld_dip_mask
* per bit:
* 0: no match
* 1: match
* Access: Index
/* Note that XRALXX register position violates the rule of ordering register
* definition by the ID. However, XRALXX pack helpers are using RALXX pack
* helpers, RALXX registers have higher IDs.
*/
MLXSW_ITEM32(reg, rlcmld, dip_mask4, 0x2C, 0, 32);
MLXSW_ITEM_BUF(reg, rlcmld, dip_mask6, 0x20, 16);
static inline void __mlxsw_reg_rlcmld_pack(char *payload,
enum mlxsw_reg_rlcmld_select select,
enum mlxsw_reg_rlcmld_protocol protocol,
u16 virtual_router)
{
u8 filter_fields = MLXSW_REG_RLCMLD_FILTER_FIELDS_BY_PROTOCOL |
MLXSW_REG_RLCMLD_FILTER_FIELDS_BY_VIRTUAL_ROUTER |
MLXSW_REG_RLCMLD_FILTER_FIELDS_BY_DIP;
MLXSW_REG_ZERO(rlcmld, payload);
mlxsw_reg_rlcmld_select_set(payload, select);
mlxsw_reg_rlcmld_filter_fields_set(payload, filter_fields);
mlxsw_reg_rlcmld_protocol_set(payload, protocol);
mlxsw_reg_rlcmld_virtual_router_set(payload, virtual_router);
}
static inline void mlxsw_reg_rlcmld_pack4(char *payload,
enum mlxsw_reg_rlcmld_select select,
u16 virtual_router,
u32 dip, u32 dip_mask)
{
__mlxsw_reg_rlcmld_pack(payload, select,
MLXSW_REG_RLCMLD_PROTOCOL_UC_IPV4,
virtual_router);
mlxsw_reg_rlcmld_dip4_set(payload, dip);
mlxsw_reg_rlcmld_dip_mask4_set(payload, dip_mask);
}
static inline void mlxsw_reg_rlcmld_pack6(char *payload,
enum mlxsw_reg_rlcmld_select select,
u16 virtual_router,
const void *dip, const void *dip_mask)
{
__mlxsw_reg_rlcmld_pack(payload, select,
MLXSW_REG_RLCMLD_PROTOCOL_UC_IPV6,
virtual_router);
mlxsw_reg_rlcmld_dip6_memcpy_to(payload, dip);
mlxsw_reg_rlcmld_dip_mask6_memcpy_to(payload, dip_mask);
}
/* RLPMCE - Router LPM Cache Enable Register
* -----------------------------------------
* Allows disabling the LPM cache. Can be changed on the fly.
*/
#define MLXSW_REG_RLPMCE_ID 0x8056
#define MLXSW_REG_RLPMCE_LEN 0x4
MLXSW_REG_DEFINE(rlpmce, MLXSW_REG_RLPMCE_ID, MLXSW_REG_RLPMCE_LEN);
/* reg_rlpmce_flush
* Flush:
* 0: do not flush the cache (default)
* 1: flush (clear) the cache
* Access: WO
*/
MLXSW_ITEM32(reg, rlpmce, flush, 0x00, 4, 1);
/* reg_rlpmce_disable
* LPM cache:
* 0: enabled (default)
* 1: disabled
* Access: RW
*/
MLXSW_ITEM32(reg, rlpmce, disable, 0x00, 0, 1);
static inline void mlxsw_reg_rlpmce_pack(char *payload, bool flush,
bool disable)
{
MLXSW_REG_ZERO(rlpmce, payload);
mlxsw_reg_rlpmce_flush_set(payload, flush);
mlxsw_reg_rlpmce_disable_set(payload, disable);
}
/* Note that XLTQ, XMDR, XRMT and XRALXX register positions violate the rule
* of ordering register definitions by the ID. However, XRALXX pack helpers are
* using RALXX pack helpers, RALXX registers have higher IDs.
* Also XMDR is using RALUE enums. XLRQ and XRMT are just put alongside with the
* related registers.
*/
/* XLTQ - XM Lookup Table Query Register
* -------------------------------------
*/
#define MLXSW_REG_XLTQ_ID 0x7802
#define MLXSW_REG_XLTQ_LEN 0x2C
MLXSW_REG_DEFINE(xltq, MLXSW_REG_XLTQ_ID, MLXSW_REG_XLTQ_LEN);
enum mlxsw_reg_xltq_xm_device_id {
MLXSW_REG_XLTQ_XM_DEVICE_ID_UNKNOWN,
MLXSW_REG_XLTQ_XM_DEVICE_ID_XLT = 0xCF71,
};
/* reg_xltq_xm_device_id
* XM device ID.
* Access: RO
*/
MLXSW_ITEM32(reg, xltq, xm_device_id, 0x04, 0, 16);
/* reg_xltq_xlt_cap_ipv4_lpm
* Access: RO
*/
MLXSW_ITEM32(reg, xltq, xlt_cap_ipv4_lpm, 0x10, 0, 1);
/* reg_xltq_xlt_cap_ipv6_lpm
* Access: RO
*/
MLXSW_ITEM32(reg, xltq, xlt_cap_ipv6_lpm, 0x10, 1, 1);
/* reg_xltq_cap_xlt_entries
* Number of XLT entries
* Note: SW must not fill more than 80% in order to avoid overflow
* Access: RO
*/
MLXSW_ITEM32(reg, xltq, cap_xlt_entries, 0x20, 0, 32);
/* reg_xltq_cap_xlt_mtable
* XLT M-Table max size
* Access: RO
*/
MLXSW_ITEM32(reg, xltq, cap_xlt_mtable, 0x24, 0, 32);
static inline void mlxsw_reg_xltq_pack(char *payload)
{
MLXSW_REG_ZERO(xltq, payload);
}
static inline void mlxsw_reg_xltq_unpack(char *payload, u16 *xm_device_id, bool *xlt_cap_ipv4_lpm,
bool *xlt_cap_ipv6_lpm, u32 *cap_xlt_entries,
u32 *cap_xlt_mtable)
{
*xm_device_id = mlxsw_reg_xltq_xm_device_id_get(payload);
*xlt_cap_ipv4_lpm = mlxsw_reg_xltq_xlt_cap_ipv4_lpm_get(payload);
*xlt_cap_ipv6_lpm = mlxsw_reg_xltq_xlt_cap_ipv6_lpm_get(payload);
*cap_xlt_entries = mlxsw_reg_xltq_cap_xlt_entries_get(payload);
*cap_xlt_mtable = mlxsw_reg_xltq_cap_xlt_mtable_get(payload);
}
/* XMDR - XM Direct Register
* -------------------------
* The XMDR allows direct access to the XM device via the switch.
* Working in synchronous mode. FW waits for response from the XLT
* for each command. FW acks the XMDR accordingly.
*/
#define MLXSW_REG_XMDR_ID 0x7803
#define MLXSW_REG_XMDR_BASE_LEN 0x20
#define MLXSW_REG_XMDR_TRANS_LEN 0x80
#define MLXSW_REG_XMDR_LEN (MLXSW_REG_XMDR_BASE_LEN + \
MLXSW_REG_XMDR_TRANS_LEN)
MLXSW_REG_DEFINE(xmdr, MLXSW_REG_XMDR_ID, MLXSW_REG_XMDR_LEN);
/* reg_xmdr_bulk_entry
* Bulk_entry
* 0: Last entry - immediate flush of XRT-cache
* 1: Bulk entry - do not flush the XRT-cache
* Access: OP
*/
MLXSW_ITEM32(reg, xmdr, bulk_entry, 0x04, 8, 1);
/* reg_xmdr_num_rec
* Number of records for Direct access to XM
* Supported: 0..4 commands (except NOP which is a filler)
* 0 commands is reserved when bulk_entry = 1.
* 0 commands is allowed when bulk_entry = 0 for immediate XRT-cache flush.
* Access: OP
*/
MLXSW_ITEM32(reg, xmdr, num_rec, 0x04, 0, 4);
/* reg_xmdr_reply_vect
* Reply Vector
* Bit i for command index i+1
* values per bit:
* 0: failed
* 1: succeeded
* e.g. if commands 1, 2, 4 succeeded and command 3 failed then binary
* value will be 0b1011
* Access: RO
*/
MLXSW_ITEM_BIT_ARRAY(reg, xmdr, reply_vect, 0x08, 4, 1);
static inline void mlxsw_reg_xmdr_pack(char *payload, bool bulk_entry)
{
MLXSW_REG_ZERO(xmdr, payload);
mlxsw_reg_xmdr_bulk_entry_set(payload, bulk_entry);
}
enum mlxsw_reg_xmdr_c_cmd_id {
MLXSW_REG_XMDR_C_CMD_ID_LT_ROUTE_V4 = 0x30,
MLXSW_REG_XMDR_C_CMD_ID_LT_ROUTE_V6 = 0x31,
};
#define MLXSW_REG_XMDR_C_LT_ROUTE_V4_LEN 32
#define MLXSW_REG_XMDR_C_LT_ROUTE_V6_LEN 48
/* reg_xmdr_c_cmd_id
*/
MLXSW_ITEM32(reg, xmdr_c, cmd_id, 0x00, 24, 8);
/* reg_xmdr_c_seq_number
*/
MLXSW_ITEM32(reg, xmdr_c, seq_number, 0x00, 12, 12);
enum mlxsw_reg_xmdr_c_ltr_op {
/* Activity is set */
MLXSW_REG_XMDR_C_LTR_OP_WRITE = 0,
/* There is no update mask. All fields are updated. */
MLXSW_REG_XMDR_C_LTR_OP_UPDATE = 1,
MLXSW_REG_XMDR_C_LTR_OP_DELETE = 2,
};
/* reg_xmdr_c_ltr_op
* Operation.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_op, 0x04, 24, 8);
/* reg_xmdr_c_ltr_trap_action
* Trap action.
* Values are defined in enum mlxsw_reg_ralue_trap_action.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_trap_action, 0x04, 20, 4);
enum mlxsw_reg_xmdr_c_ltr_trap_id_num {
MLXSW_REG_XMDR_C_LTR_TRAP_ID_NUM_RTR_INGRESS0,
MLXSW_REG_XMDR_C_LTR_TRAP_ID_NUM_RTR_INGRESS1,
MLXSW_REG_XMDR_C_LTR_TRAP_ID_NUM_RTR_INGRESS2,
MLXSW_REG_XMDR_C_LTR_TRAP_ID_NUM_RTR_INGRESS3,
};
/* reg_xmdr_c_ltr_trap_id_num
* Trap-ID number.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_trap_id_num, 0x04, 16, 4);
/* reg_xmdr_c_ltr_virtual_router
* Virtual Router ID.
* Range is 0..cap_max_virtual_routers-1
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_virtual_router, 0x04, 0, 16);
/* reg_xmdr_c_ltr_prefix_len
* Number of bits in the prefix of the LPM route.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_prefix_len, 0x08, 24, 8);
/* reg_xmdr_c_ltr_bmp_len
* The best match prefix length in the case that there is no match for
* longer prefixes.
* If (entry_type != MARKER_ENTRY), bmp_len must be equal to prefix_len
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_bmp_len, 0x08, 16, 8);
/* reg_xmdr_c_ltr_entry_type
* Entry type.
* Values are defined in enum mlxsw_reg_ralue_entry_type.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_entry_type, 0x08, 4, 4);
enum mlxsw_reg_xmdr_c_ltr_action_type {
MLXSW_REG_XMDR_C_LTR_ACTION_TYPE_LOCAL,
MLXSW_REG_XMDR_C_LTR_ACTION_TYPE_REMOTE,
MLXSW_REG_XMDR_C_LTR_ACTION_TYPE_IP2ME,
};
/* reg_xmdr_c_ltr_action_type
* Action Type.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_action_type, 0x08, 0, 4);
/* reg_xmdr_c_ltr_erif
* Egress Router Interface.
* Only relevant in case of LOCAL action.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_erif, 0x10, 0, 16);
/* reg_xmdr_c_ltr_adjacency_index
* Points to the first entry of the group-based ECMP.
* Only relevant in case of REMOTE action.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_adjacency_index, 0x10, 0, 24);
#define MLXSW_REG_XMDR_C_LTR_POINTER_TO_TUNNEL_DISABLED_MAGIC 0xFFFFFF
/* reg_xmdr_c_ltr_pointer_to_tunnel
* Only relevant in case of IP2ME action.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_pointer_to_tunnel, 0x10, 0, 24);
/* reg_xmdr_c_ltr_ecmp_size
* Amount of sequential entries starting
* from the adjacency_index (the number of ECMPs).
* The valid range is 1-64, 512, 1024, 2048 and 4096.
* Only relevant in case of REMOTE action.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_ecmp_size, 0x14, 0, 32);
/* reg_xmdr_c_ltr_dip*
* The prefix of the route or of the marker that the object of the LPM
* is compared with. The most significant bits of the dip are the prefix.
* The least significant bits must be '0' if the prefix_len is smaller
* than 128 for IPv6 or smaller than 32 for IPv4.
*/
MLXSW_ITEM32(reg, xmdr_c, ltr_dip4, 0x1C, 0, 32);
MLXSW_ITEM_BUF(reg, xmdr_c, ltr_dip6, 0x1C, 16);
static inline void
mlxsw_reg_xmdr_c_ltr_pack(char *xmdr_payload, unsigned int trans_offset,
enum mlxsw_reg_xmdr_c_cmd_id cmd_id, u16 seq_number,
enum mlxsw_reg_xmdr_c_ltr_op op, u16 virtual_router,
u8 prefix_len)
{
char *payload = xmdr_payload + MLXSW_REG_XMDR_BASE_LEN + trans_offset;
u8 num_rec = mlxsw_reg_xmdr_num_rec_get(xmdr_payload);
mlxsw_reg_xmdr_num_rec_set(xmdr_payload, num_rec + 1);
mlxsw_reg_xmdr_c_cmd_id_set(payload, cmd_id);
mlxsw_reg_xmdr_c_seq_number_set(payload, seq_number);
mlxsw_reg_xmdr_c_ltr_op_set(payload, op);
mlxsw_reg_xmdr_c_ltr_virtual_router_set(payload, virtual_router);
mlxsw_reg_xmdr_c_ltr_prefix_len_set(payload, prefix_len);
mlxsw_reg_xmdr_c_ltr_entry_type_set(payload,
MLXSW_REG_RALUE_ENTRY_TYPE_ROUTE_ENTRY);
mlxsw_reg_xmdr_c_ltr_bmp_len_set(payload, prefix_len);
}
static inline unsigned int
mlxsw_reg_xmdr_c_ltr_pack4(char *xmdr_payload, unsigned int trans_offset,
u16 seq_number, enum mlxsw_reg_xmdr_c_ltr_op op,
u16 virtual_router, u8 prefix_len, u32 *dip)
{
char *payload = xmdr_payload + MLXSW_REG_XMDR_BASE_LEN + trans_offset;
mlxsw_reg_xmdr_c_ltr_pack(xmdr_payload, trans_offset,
MLXSW_REG_XMDR_C_CMD_ID_LT_ROUTE_V4,
seq_number, op, virtual_router, prefix_len);
if (dip)
mlxsw_reg_xmdr_c_ltr_dip4_set(payload, *dip);
return MLXSW_REG_XMDR_C_LT_ROUTE_V4_LEN;
}
static inline unsigned int
mlxsw_reg_xmdr_c_ltr_pack6(char *xmdr_payload, unsigned int trans_offset,
u16 seq_number, enum mlxsw_reg_xmdr_c_ltr_op op,
u16 virtual_router, u8 prefix_len, const void *dip)
{
char *payload = xmdr_payload + MLXSW_REG_XMDR_BASE_LEN + trans_offset;
mlxsw_reg_xmdr_c_ltr_pack(xmdr_payload, trans_offset,
MLXSW_REG_XMDR_C_CMD_ID_LT_ROUTE_V6,
seq_number, op, virtual_router, prefix_len);
if (dip)
mlxsw_reg_xmdr_c_ltr_dip6_memcpy_to(payload, dip);
return MLXSW_REG_XMDR_C_LT_ROUTE_V6_LEN;
}
static inline void
mlxsw_reg_xmdr_c_ltr_act_remote_pack(char *xmdr_payload, unsigned int trans_offset,
enum mlxsw_reg_ralue_trap_action trap_action,
enum mlxsw_reg_xmdr_c_ltr_trap_id_num trap_id_num,
u32 adjacency_index, u16 ecmp_size)
{
char *payload = xmdr_payload + MLXSW_REG_XMDR_BASE_LEN + trans_offset;
mlxsw_reg_xmdr_c_ltr_action_type_set(payload, MLXSW_REG_XMDR_C_LTR_ACTION_TYPE_REMOTE);
mlxsw_reg_xmdr_c_ltr_trap_action_set(payload, trap_action);
mlxsw_reg_xmdr_c_ltr_trap_id_num_set(payload, trap_id_num);
mlxsw_reg_xmdr_c_ltr_adjacency_index_set(payload, adjacency_index);
mlxsw_reg_xmdr_c_ltr_ecmp_size_set(payload, ecmp_size);
}
static inline void
mlxsw_reg_xmdr_c_ltr_act_local_pack(char *xmdr_payload, unsigned int trans_offset,
enum mlxsw_reg_ralue_trap_action trap_action,
enum mlxsw_reg_xmdr_c_ltr_trap_id_num trap_id_num, u16 erif)
{
char *payload = xmdr_payload + MLXSW_REG_XMDR_BASE_LEN + trans_offset;
mlxsw_reg_xmdr_c_ltr_action_type_set(payload, MLXSW_REG_XMDR_C_LTR_ACTION_TYPE_LOCAL);
mlxsw_reg_xmdr_c_ltr_trap_action_set(payload, trap_action);
mlxsw_reg_xmdr_c_ltr_trap_id_num_set(payload, trap_id_num);
mlxsw_reg_xmdr_c_ltr_erif_set(payload, erif);
}
static inline void mlxsw_reg_xmdr_c_ltr_act_ip2me_pack(char *xmdr_payload,
unsigned int trans_offset)
{
char *payload = xmdr_payload + MLXSW_REG_XMDR_BASE_LEN + trans_offset;
mlxsw_reg_xmdr_c_ltr_action_type_set(payload, MLXSW_REG_XMDR_C_LTR_ACTION_TYPE_IP2ME);
mlxsw_reg_xmdr_c_ltr_pointer_to_tunnel_set(payload,
MLXSW_REG_XMDR_C_LTR_POINTER_TO_TUNNEL_DISABLED_MAGIC);
}
static inline void mlxsw_reg_xmdr_c_ltr_act_ip2me_tun_pack(char *xmdr_payload,
unsigned int trans_offset,
u32 pointer_to_tunnel)
{
char *payload = xmdr_payload + MLXSW_REG_XMDR_BASE_LEN + trans_offset;
mlxsw_reg_xmdr_c_ltr_action_type_set(payload, MLXSW_REG_XMDR_C_LTR_ACTION_TYPE_IP2ME);
mlxsw_reg_xmdr_c_ltr_pointer_to_tunnel_set(payload, pointer_to_tunnel);
}
/* XRMT - XM Router M Table Register
* ---------------------------------
* The XRMT configures the M-Table for the XLT-LPM.
*/
#define MLXSW_REG_XRMT_ID 0x7810
#define MLXSW_REG_XRMT_LEN 0x14
MLXSW_REG_DEFINE(xrmt, MLXSW_REG_XRMT_ID, MLXSW_REG_XRMT_LEN);
/* reg_xrmt_index
* Index in M-Table.
* Range 0..cap_xlt_mtable-1
* Access: Index
*/
MLXSW_ITEM32(reg, xrmt, index, 0x04, 0, 20);
/* reg_xrmt_l0_val
* Access: RW
*/
MLXSW_ITEM32(reg, xrmt, l0_val, 0x10, 24, 8);
static inline void mlxsw_reg_xrmt_pack(char *payload, u32 index, u8 l0_val)
{
MLXSW_REG_ZERO(xrmt, payload);
mlxsw_reg_xrmt_index_set(payload, index);
mlxsw_reg_xrmt_l0_val_set(payload, l0_val);
}
/* XRALTA - XM Router Algorithmic LPM Tree Allocation Register
* -----------------------------------------------------------
......@@ -13084,13 +12512,6 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
MLXSW_REG(rigr2),
MLXSW_REG(recr2),
MLXSW_REG(rmft2),
MLXSW_REG(rxlte),
MLXSW_REG(rxltm),
MLXSW_REG(rlcmld),
MLXSW_REG(rlpmce),
MLXSW_REG(xltq),
MLXSW_REG(xmdr),
MLXSW_REG(xrmt),
MLXSW_REG(xralta),
MLXSW_REG(xralst),
MLXSW_REG(xraltb),
......
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View file @ 6a4b02b8
......@@ -2105,9 +2105,6 @@ static int mlxsw_sp_port_module_info_init(struct mlxsw_sp *mlxsw_sp)
return -ENOMEM;
for (i = 1; i < max_ports; i++) {
if (mlxsw_core_port_is_xm(mlxsw_sp->core, i))
continue;
port_mapping = &mlxsw_sp->port_mapping[i];
err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, port_mapping);
if (err)
......@@ -3410,8 +3407,6 @@ static const struct mlxsw_config_profile mlxsw_sp2_config_profile = {
.max_ib_mc = 0,
.used_max_pkey = 1,
.max_pkey = 0,
.used_kvh_xlt_cache_mode = 1,
.kvh_xlt_cache_mode = 1,
.swid_config = {
{
.used_type = 1,
......
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
View file @ 6a4b02b8
......@@ -551,12 +551,6 @@ struct mlxsw_sp_vr {
refcount_t ul_rif_refcnt;
};
static int mlxsw_sp_router_ll_basic_init(struct mlxsw_sp *mlxsw_sp, u16 vr_id,
enum mlxsw_sp_l3proto proto)
{
return 0;
}
static int mlxsw_sp_router_ll_basic_ralta_write(struct mlxsw_sp *mlxsw_sp, char *xralta_pl)
{
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralta),
......@@ -586,10 +580,6 @@ static struct mlxsw_sp_fib *mlxsw_sp_fib_create(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib *fib;
int err;
err = ll_ops->init(mlxsw_sp, vr->id, proto);
if (err)
return ERR_PTR(err);
lpm_tree = mlxsw_sp->router->lpm.proto_trees[proto];
fib = kzalloc(sizeof(*fib), GFP_KERNEL);
if (!fib)
......@@ -7770,7 +7760,6 @@ static void mlxsw_sp_router_fib_event_work(struct work_struct *work)
op_ctx->bulk_ok = !list_is_last(&fib_event->list, &fib_event_queue) &&
fib_event->family == next_fib_event->family &&
fib_event->event == next_fib_event->event;
op_ctx->event = fib_event->event;
/* In case family of this and the previous entry are different, context
* reinitialization is going to be needed now, indicate that.
......@@ -10534,7 +10523,6 @@ static void __mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp)
}
static const struct mlxsw_sp_router_ll_ops mlxsw_sp_router_ll_basic_ops = {
.init = mlxsw_sp_router_ll_basic_init,
.ralta_write = mlxsw_sp_router_ll_basic_ralta_write,
.ralst_write = mlxsw_sp_router_ll_basic_ralst_write,
.raltb_write = mlxsw_sp_router_ll_basic_raltb_write,
......@@ -10646,13 +10634,7 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
if (err)
goto err_router_ops_init;
err = mlxsw_sp_router_xm_init(mlxsw_sp);
if (err)
goto err_xm_init;
router->proto_ll_ops[MLXSW_SP_L3_PROTO_IPV4] = mlxsw_sp_router_xm_ipv4_is_supported(mlxsw_sp) ?
&mlxsw_sp_router_ll_xm_ops :
&mlxsw_sp_router_ll_basic_ops;
router->proto_ll_ops[MLXSW_SP_L3_PROTO_IPV4] = &mlxsw_sp_router_ll_basic_ops;
router->proto_ll_ops[MLXSW_SP_L3_PROTO_IPV6] = &mlxsw_sp_router_ll_basic_ops;
err = mlxsw_sp_router_ll_op_ctx_init(router);
......@@ -10799,8 +10781,6 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
cancel_delayed_work_sync(&mlxsw_sp->router->nh_grp_activity_dw);
mlxsw_sp_router_ll_op_ctx_fini(router);
err_ll_op_ctx_init:
mlxsw_sp_router_xm_fini(mlxsw_sp);
err_xm_init:
err_router_ops_init:
mutex_destroy(&mlxsw_sp->router->lock);
kfree(mlxsw_sp->router);
......@@ -10832,7 +10812,6 @@ void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp)
__mlxsw_sp_router_fini(mlxsw_sp);
cancel_delayed_work_sync(&mlxsw_sp->router->nh_grp_activity_dw);
mlxsw_sp_router_ll_op_ctx_fini(mlxsw_sp->router);
mlxsw_sp_router_xm_fini(mlxsw_sp);
mutex_destroy(&mlxsw_sp->router->lock);
kfree(mlxsw_sp->router);
}
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
View file @ 6a4b02b8
......@@ -24,7 +24,6 @@ struct mlxsw_sp_fib_entry_op_ctx {
* the context priv is initialized.
*/
struct list_head fib_entry_priv_list;
unsigned long event;
unsigned long ll_priv[];
};
......@@ -79,7 +78,6 @@ struct mlxsw_sp_router {
const struct mlxsw_sp_router_ll_ops *proto_ll_ops[MLXSW_SP_L3_PROTO_MAX];
struct mlxsw_sp_fib_entry_op_ctx *ll_op_ctx;
u16 lb_rif_index;
struct mlxsw_sp_router_xm *xm;
const struct mlxsw_sp_adj_grp_size_range *adj_grp_size_ranges;
size_t adj_grp_size_ranges_count;
struct delayed_work nh_grp_activity_dw;
......@@ -105,8 +103,6 @@ enum mlxsw_sp_fib_entry_op {
* register sets to work with ordinary and XM trees and FIB entries.
*/
struct mlxsw_sp_router_ll_ops {
int (*init)(struct mlxsw_sp *mlxsw_sp, u16 vr_id,
enum mlxsw_sp_l3proto proto);
int (*ralta_write)(struct mlxsw_sp *mlxsw_sp, char *xralta_pl);
int (*ralst_write)(struct mlxsw_sp *mlxsw_sp, char *xralst_pl);
int (*raltb_write)(struct mlxsw_sp *mlxsw_sp, char *xraltb_pl);
......@@ -232,10 +228,4 @@ int mlxsw_sp_ipip_ecn_decap_init(struct mlxsw_sp *mlxsw_sp);
struct net_device *
mlxsw_sp_ipip_netdev_ul_dev_get(const struct net_device *ol_dev);
extern const struct mlxsw_sp_router_ll_ops mlxsw_sp_router_ll_xm_ops;
int mlxsw_sp_router_xm_init(struct mlxsw_sp *mlxsw_sp);
void mlxsw_sp_router_xm_fini(struct mlxsw_sp *mlxsw_sp);
bool mlxsw_sp_router_xm_ipv4_is_supported(const struct mlxsw_sp *mlxsw_sp);
#endif /* _MLXSW_ROUTER_H_*/
drivers/net/ethernet/mellanox/mlxsw/spectrum_router_xm.c deleted 100644 → 0
View file @ 6ac6dc74
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/* Copyright (c) 2020 Mellanox Technologies. All rights reserved */
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/rhashtable.h>
#include "spectrum.h"
#include "core.h"
#include "reg.h"
#include "spectrum_router.h"
#define MLXSW_SP_ROUTER_XM_M_VAL 16
static const u8 mlxsw_sp_router_xm_m_val[] = {
[MLXSW_SP_L3_PROTO_IPV4] = MLXSW_SP_ROUTER_XM_M_VAL,
[MLXSW_SP_L3_PROTO_IPV6] = 0, /* Currently unused. */
};
#define MLXSW_SP_ROUTER_XM_L_VAL_MAX 16
struct mlxsw_sp_router_xm {
bool ipv4_supported;
bool ipv6_supported;
unsigned int entries_size;
struct rhashtable ltable_ht;
struct rhashtable flush_ht; /* Stores items about to be flushed from cache */
unsigned int flush_count;
bool flush_all_mode;
};
struct mlxsw_sp_router_xm_ltable_node {
struct rhash_head ht_node; /* Member of router_xm->ltable_ht */
u16 mindex;
u8 current_lvalue;
refcount_t refcnt;
unsigned int lvalue_ref[MLXSW_SP_ROUTER_XM_L_VAL_MAX + 1];
};
static const struct rhashtable_params mlxsw_sp_router_xm_ltable_ht_params = {
.key_offset = offsetof(struct mlxsw_sp_router_xm_ltable_node, mindex),
.head_offset = offsetof(struct mlxsw_sp_router_xm_ltable_node, ht_node),
.key_len = sizeof(u16),
.automatic_shrinking = true,
};
struct mlxsw_sp_router_xm_flush_info {
bool all;
enum mlxsw_sp_l3proto proto;
u16 virtual_router;
u8 prefix_len;
unsigned char addr[sizeof(struct in6_addr)];
};
struct mlxsw_sp_router_xm_fib_entry {
bool committed;
struct mlxsw_sp_router_xm_ltable_node *ltable_node; /* Parent node */
u16 mindex; /* Store for processing from commit op */
u8 lvalue;
struct mlxsw_sp_router_xm_flush_info flush_info;
};
#define MLXSW_SP_ROUTE_LL_XM_ENTRIES_MAX \
(MLXSW_REG_XMDR_TRANS_LEN / MLXSW_REG_XMDR_C_LT_ROUTE_V4_LEN)
struct mlxsw_sp_fib_entry_op_ctx_xm {
bool initialized;
char xmdr_pl[MLXSW_REG_XMDR_LEN];
unsigned int trans_offset; /* Offset of the current command within one
* transaction of XMDR register.
*/
unsigned int trans_item_len; /* The current command length. This is used
* to advance 'trans_offset' when the next
* command is appended.
*/
unsigned int entries_count;
struct mlxsw_sp_router_xm_fib_entry *entries[MLXSW_SP_ROUTE_LL_XM_ENTRIES_MAX];
};
static int mlxsw_sp_router_ll_xm_init(struct mlxsw_sp *mlxsw_sp, u16 vr_id,
enum mlxsw_sp_l3proto proto)
{
char rxlte_pl[MLXSW_REG_RXLTE_LEN];
mlxsw_reg_rxlte_pack(rxlte_pl, vr_id,
(enum mlxsw_reg_rxlte_protocol) proto, true);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rxlte), rxlte_pl);
}
static int mlxsw_sp_router_ll_xm_ralta_write(struct mlxsw_sp *mlxsw_sp, char *xralta_pl)
{
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(xralta), xralta_pl);
}
static int mlxsw_sp_router_ll_xm_ralst_write(struct mlxsw_sp *mlxsw_sp, char *xralst_pl)
{
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(xralst), xralst_pl);
}
static int mlxsw_sp_router_ll_xm_raltb_write(struct mlxsw_sp *mlxsw_sp, char *xraltb_pl)
{
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(xraltb), xraltb_pl);
}
static u16 mlxsw_sp_router_ll_xm_mindex_get4(const u32 addr)
{
/* Currently the M-index is set to linear mode. That means it is defined
* as 16 MSB of IP address.
*/
return addr >> MLXSW_SP_ROUTER_XM_L_VAL_MAX;
}
static u16 mlxsw_sp_router_ll_xm_mindex_get6(const unsigned char *addr)
{
WARN_ON_ONCE(1);
return 0; /* currently unused */
}
static void mlxsw_sp_router_ll_xm_op_ctx_check_init(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm)
{
if (op_ctx->initialized)
return;
op_ctx->initialized = true;
mlxsw_reg_xmdr_pack(op_ctx_xm->xmdr_pl, true);
op_ctx_xm->trans_offset = 0;
op_ctx_xm->entries_count = 0;
}
static void mlxsw_sp_router_ll_xm_fib_entry_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_sp_l3proto proto,
enum mlxsw_sp_fib_entry_op op,
u16 virtual_router, u8 prefix_len,
unsigned char *addr,
struct mlxsw_sp_fib_entry_priv *priv)
{
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm = (void *) op_ctx->ll_priv;
struct mlxsw_sp_router_xm_fib_entry *fib_entry = (void *) priv->priv;
struct mlxsw_sp_router_xm_flush_info *flush_info;
enum mlxsw_reg_xmdr_c_ltr_op xmdr_c_ltr_op;
unsigned int len;
mlxsw_sp_router_ll_xm_op_ctx_check_init(op_ctx, op_ctx_xm);
switch (op) {
case MLXSW_SP_FIB_ENTRY_OP_WRITE:
xmdr_c_ltr_op = MLXSW_REG_XMDR_C_LTR_OP_WRITE;
break;
case MLXSW_SP_FIB_ENTRY_OP_UPDATE:
xmdr_c_ltr_op = MLXSW_REG_XMDR_C_LTR_OP_UPDATE;
break;
case MLXSW_SP_FIB_ENTRY_OP_DELETE:
xmdr_c_ltr_op = MLXSW_REG_XMDR_C_LTR_OP_DELETE;
break;
default:
WARN_ON_ONCE(1);
return;
}
switch (proto) {
case MLXSW_SP_L3_PROTO_IPV4:
len = mlxsw_reg_xmdr_c_ltr_pack4(op_ctx_xm->xmdr_pl, op_ctx_xm->trans_offset,
op_ctx_xm->entries_count, xmdr_c_ltr_op,
virtual_router, prefix_len, (u32 *) addr);
fib_entry->mindex = mlxsw_sp_router_ll_xm_mindex_get4(*((u32 *) addr));
break;
case MLXSW_SP_L3_PROTO_IPV6:
len = mlxsw_reg_xmdr_c_ltr_pack6(op_ctx_xm->xmdr_pl, op_ctx_xm->trans_offset,
op_ctx_xm->entries_count, xmdr_c_ltr_op,
virtual_router, prefix_len, addr);
fib_entry->mindex = mlxsw_sp_router_ll_xm_mindex_get6(addr);
break;
default:
WARN_ON_ONCE(1);
return;
}
if (!op_ctx_xm->trans_offset)
op_ctx_xm->trans_item_len = len;
else
WARN_ON_ONCE(op_ctx_xm->trans_item_len != len);
op_ctx_xm->entries[op_ctx_xm->entries_count] = fib_entry;
fib_entry->lvalue = prefix_len > mlxsw_sp_router_xm_m_val[proto] ?
prefix_len - mlxsw_sp_router_xm_m_val[proto] : 0;
flush_info = &fib_entry->flush_info;
flush_info->proto = proto;
flush_info->virtual_router = virtual_router;
flush_info->prefix_len = prefix_len;
if (addr)
memcpy(flush_info->addr, addr, sizeof(flush_info->addr));
else
memset(flush_info->addr, 0, sizeof(flush_info->addr));
}
static void
mlxsw_sp_router_ll_xm_fib_entry_act_remote_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_reg_ralue_trap_action trap_action,
u16 trap_id, u32 adjacency_index, u16 ecmp_size)
{
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm = (void *) op_ctx->ll_priv;
mlxsw_reg_xmdr_c_ltr_act_remote_pack(op_ctx_xm->xmdr_pl, op_ctx_xm->trans_offset,
trap_action, trap_id, adjacency_index, ecmp_size);
}
static void
mlxsw_sp_router_ll_xm_fib_entry_act_local_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_reg_ralue_trap_action trap_action,
u16 trap_id, u16 local_erif)
{
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm = (void *) op_ctx->ll_priv;
mlxsw_reg_xmdr_c_ltr_act_local_pack(op_ctx_xm->xmdr_pl, op_ctx_xm->trans_offset,
trap_action, trap_id, local_erif);
}
static void
mlxsw_sp_router_ll_xm_fib_entry_act_ip2me_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx)
{
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm = (void *) op_ctx->ll_priv;
mlxsw_reg_xmdr_c_ltr_act_ip2me_pack(op_ctx_xm->xmdr_pl, op_ctx_xm->trans_offset);
}
static void
mlxsw_sp_router_ll_xm_fib_entry_act_ip2me_tun_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
u32 tunnel_ptr)
{
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm = (void *) op_ctx->ll_priv;
mlxsw_reg_xmdr_c_ltr_act_ip2me_tun_pack(op_ctx_xm->xmdr_pl, op_ctx_xm->trans_offset,
tunnel_ptr);
}
static struct mlxsw_sp_router_xm_ltable_node *
mlxsw_sp_router_xm_ltable_node_get(struct mlxsw_sp_router_xm *router_xm, u16 mindex)
{
struct mlxsw_sp_router_xm_ltable_node *ltable_node;
int err;
ltable_node = rhashtable_lookup_fast(&router_xm->ltable_ht, &mindex,
mlxsw_sp_router_xm_ltable_ht_params);
if (ltable_node) {
refcount_inc(&ltable_node->refcnt);
return ltable_node;
}
ltable_node = kzalloc(sizeof(*ltable_node), GFP_KERNEL);
if (!ltable_node)
return ERR_PTR(-ENOMEM);
ltable_node->mindex = mindex;
refcount_set(&ltable_node->refcnt, 1);
err = rhashtable_insert_fast(&router_xm->ltable_ht, &ltable_node->ht_node,
mlxsw_sp_router_xm_ltable_ht_params);
if (err)
goto err_insert;
return ltable_node;
err_insert:
kfree(ltable_node);
return ERR_PTR(err);
}
static void mlxsw_sp_router_xm_ltable_node_put(struct mlxsw_sp_router_xm *router_xm,
struct mlxsw_sp_router_xm_ltable_node *ltable_node)
{
if (!refcount_dec_and_test(&ltable_node->refcnt))
return;
rhashtable_remove_fast(&router_xm->ltable_ht, &ltable_node->ht_node,
mlxsw_sp_router_xm_ltable_ht_params);
kfree(ltable_node);
}
static int mlxsw_sp_router_xm_ltable_lvalue_set(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_router_xm_ltable_node *ltable_node)
{
char xrmt_pl[MLXSW_REG_XRMT_LEN];
mlxsw_reg_xrmt_pack(xrmt_pl, ltable_node->mindex, ltable_node->current_lvalue);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(xrmt), xrmt_pl);
}
struct mlxsw_sp_router_xm_flush_node {
struct rhash_head ht_node; /* Member of router_xm->flush_ht */
struct list_head list;
struct mlxsw_sp_router_xm_flush_info flush_info;
struct delayed_work dw;
struct mlxsw_sp *mlxsw_sp;
unsigned long start_jiffies;
unsigned int reuses; /* By how many flush calls this was reused. */
refcount_t refcnt;
};
static const struct rhashtable_params mlxsw_sp_router_xm_flush_ht_params = {
.key_offset = offsetof(struct mlxsw_sp_router_xm_flush_node, flush_info),
.head_offset = offsetof(struct mlxsw_sp_router_xm_flush_node, ht_node),
.key_len = sizeof(struct mlxsw_sp_router_xm_flush_info),
.automatic_shrinking = true,
};
static struct mlxsw_sp_router_xm_flush_node *
mlxsw_sp_router_xm_cache_flush_node_create(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_router_xm_flush_info *flush_info)
{
struct mlxsw_sp_router_xm *router_xm = mlxsw_sp->router->xm;
struct mlxsw_sp_router_xm_flush_node *flush_node;
int err;
flush_node = kzalloc(sizeof(*flush_node), GFP_KERNEL);
if (!flush_node)
return ERR_PTR(-ENOMEM);
flush_node->flush_info = *flush_info;
err = rhashtable_insert_fast(&router_xm->flush_ht, &flush_node->ht_node,
mlxsw_sp_router_xm_flush_ht_params);
if (err) {
kfree(flush_node);
return ERR_PTR(err);
}
router_xm->flush_count++;
flush_node->mlxsw_sp = mlxsw_sp;
flush_node->start_jiffies = jiffies;
refcount_set(&flush_node->refcnt, 1);
return flush_node;
}
static void
mlxsw_sp_router_xm_cache_flush_node_hold(struct mlxsw_sp_router_xm_flush_node *flush_node)
{
if (!flush_node)
return;
refcount_inc(&flush_node->refcnt);
}
static void
mlxsw_sp_router_xm_cache_flush_node_put(struct mlxsw_sp_router_xm_flush_node *flush_node)
{
if (!flush_node || !refcount_dec_and_test(&flush_node->refcnt))
return;
kfree(flush_node);
}
static void
mlxsw_sp_router_xm_cache_flush_node_destroy(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_router_xm_flush_node *flush_node)
{
struct mlxsw_sp_router_xm *router_xm = mlxsw_sp->router->xm;
router_xm->flush_count--;
rhashtable_remove_fast(&router_xm->flush_ht, &flush_node->ht_node,
mlxsw_sp_router_xm_flush_ht_params);
mlxsw_sp_router_xm_cache_flush_node_put(flush_node);
}
static u32 mlxsw_sp_router_xm_flush_mask4(u8 prefix_len)
{
return GENMASK(31, 32 - prefix_len);
}
static unsigned char *mlxsw_sp_router_xm_flush_mask6(u8 prefix_len)
{
static unsigned char mask[sizeof(struct in6_addr)];
memset(mask, 0, sizeof(mask));
memset(mask, 0xff, prefix_len / 8);
mask[prefix_len / 8] = GENMASK(8, 8 - prefix_len % 8);
return mask;
}
#define MLXSW_SP_ROUTER_XM_CACHE_PARALLEL_FLUSHES_LIMIT 15
#define MLXSW_SP_ROUTER_XM_CACHE_FLUSH_ALL_MIN_REUSES 15
#define MLXSW_SP_ROUTER_XM_CACHE_DELAY 50 /* usecs */
#define MLXSW_SP_ROUTER_XM_CACHE_MAX_WAIT (MLXSW_SP_ROUTER_XM_CACHE_DELAY * 10)
static void mlxsw_sp_router_xm_cache_flush_work(struct work_struct *work)
{
struct mlxsw_sp_router_xm_flush_info *flush_info;
struct mlxsw_sp_router_xm_flush_node *flush_node;
char rlcmld_pl[MLXSW_REG_RLCMLD_LEN];
enum mlxsw_reg_rlcmld_select select;
struct mlxsw_sp *mlxsw_sp;
u32 addr4;
int err;
flush_node = container_of(work, struct mlxsw_sp_router_xm_flush_node,
dw.work);
mlxsw_sp = flush_node->mlxsw_sp;
flush_info = &flush_node->flush_info;
if (flush_info->all) {
char rlpmce_pl[MLXSW_REG_RLPMCE_LEN];
mlxsw_reg_rlpmce_pack(rlpmce_pl, true, false);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rlpmce),
rlpmce_pl);
if (err)
dev_err(mlxsw_sp->bus_info->dev, "Failed to flush XM cache\n");
if (flush_node->reuses <
MLXSW_SP_ROUTER_XM_CACHE_FLUSH_ALL_MIN_REUSES)
/* Leaving flush-all mode. */
mlxsw_sp->router->xm->flush_all_mode = false;
goto out;
}
select = MLXSW_REG_RLCMLD_SELECT_M_AND_ML_ENTRIES;
switch (flush_info->proto) {
case MLXSW_SP_L3_PROTO_IPV4:
addr4 = *((u32 *) flush_info->addr);
addr4 &= mlxsw_sp_router_xm_flush_mask4(flush_info->prefix_len);
/* In case the flush prefix length is bigger than M-value,
* it makes no sense to flush M entries. So just flush
* the ML entries.
*/
if (flush_info->prefix_len > MLXSW_SP_ROUTER_XM_M_VAL)
select = MLXSW_REG_RLCMLD_SELECT_ML_ENTRIES;
mlxsw_reg_rlcmld_pack4(rlcmld_pl, select,
flush_info->virtual_router, addr4,
mlxsw_sp_router_xm_flush_mask4(flush_info->prefix_len));
break;
case MLXSW_SP_L3_PROTO_IPV6:
mlxsw_reg_rlcmld_pack6(rlcmld_pl, select,
flush_info->virtual_router, flush_info->addr,
mlxsw_sp_router_xm_flush_mask6(flush_info->prefix_len));
break;
default:
WARN_ON(true);
goto out;
}
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rlcmld), rlcmld_pl);
if (err)
dev_err(mlxsw_sp->bus_info->dev, "Failed to flush XM cache\n");
out:
mlxsw_sp_router_xm_cache_flush_node_destroy(mlxsw_sp, flush_node);
}
static bool
mlxsw_sp_router_xm_cache_flush_may_cancel(struct mlxsw_sp_router_xm_flush_node *flush_node)
{
unsigned long max_wait = usecs_to_jiffies(MLXSW_SP_ROUTER_XM_CACHE_MAX_WAIT);
unsigned long delay = usecs_to_jiffies(MLXSW_SP_ROUTER_XM_CACHE_DELAY);
/* In case there is the same flushing work pending, check
* if we can consolidate with it. We can do it up to MAX_WAIT.
* Cancel the delayed work. If the work was still pending.
*/
if (time_is_before_jiffies(flush_node->start_jiffies + max_wait - delay) &&
cancel_delayed_work_sync(&flush_node->dw))
return true;
return false;
}
static int
mlxsw_sp_router_xm_cache_flush_schedule(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_router_xm_flush_info *flush_info)
{
unsigned long delay = usecs_to_jiffies(MLXSW_SP_ROUTER_XM_CACHE_DELAY);
struct mlxsw_sp_router_xm_flush_info flush_all_info = {.all = true};
struct mlxsw_sp_router_xm *router_xm = mlxsw_sp->router->xm;
struct mlxsw_sp_router_xm_flush_node *flush_node;
/* Check if the queued number of flushes reached critical amount after
* which it is better to just flush the whole cache.
*/
if (router_xm->flush_count == MLXSW_SP_ROUTER_XM_CACHE_PARALLEL_FLUSHES_LIMIT)
/* Entering flush-all mode. */
router_xm->flush_all_mode = true;
if (router_xm->flush_all_mode)
flush_info = &flush_all_info;
rcu_read_lock();
flush_node = rhashtable_lookup_fast(&router_xm->flush_ht, flush_info,
mlxsw_sp_router_xm_flush_ht_params);
/* Take a reference so the object is not freed before possible
* delayed work cancel could be done.
*/
mlxsw_sp_router_xm_cache_flush_node_hold(flush_node);
rcu_read_unlock();
if (flush_node && mlxsw_sp_router_xm_cache_flush_may_cancel(flush_node)) {
flush_node->reuses++;
mlxsw_sp_router_xm_cache_flush_node_put(flush_node);
/* Original work was within wait period and was canceled.
* That means that the reference is still held and the
* flush_node_put() call above did not free the flush_node.
* Reschedule it with fresh delay.
*/
goto schedule_work;
} else {
mlxsw_sp_router_xm_cache_flush_node_put(flush_node);
}
flush_node = mlxsw_sp_router_xm_cache_flush_node_create(mlxsw_sp, flush_info);
if (IS_ERR(flush_node))
return PTR_ERR(flush_node);
INIT_DELAYED_WORK(&flush_node->dw, mlxsw_sp_router_xm_cache_flush_work);
schedule_work:
mlxsw_core_schedule_dw(&flush_node->dw, delay);
return 0;
}
static int
mlxsw_sp_router_xm_ml_entry_add(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_router_xm_fib_entry *fib_entry)
{
struct mlxsw_sp_router_xm *router_xm = mlxsw_sp->router->xm;
struct mlxsw_sp_router_xm_ltable_node *ltable_node;
u8 lvalue = fib_entry->lvalue;
int err;
ltable_node = mlxsw_sp_router_xm_ltable_node_get(router_xm,
fib_entry->mindex);
if (IS_ERR(ltable_node))
return PTR_ERR(ltable_node);
if (lvalue > ltable_node->current_lvalue) {
/* The L-value is bigger then the one currently set, update. */
ltable_node->current_lvalue = lvalue;
err = mlxsw_sp_router_xm_ltable_lvalue_set(mlxsw_sp,
ltable_node);
if (err)
goto err_lvalue_set;
/* The L value for prefix/M is increased.
* Therefore, all entries in M and ML caches matching
* {prefix/M, proto, VR} need to be flushed. Set the flush
* prefix length to M to achieve that.
*/
fib_entry->flush_info.prefix_len = MLXSW_SP_ROUTER_XM_M_VAL;
}
ltable_node->lvalue_ref[lvalue]++;
fib_entry->ltable_node = ltable_node;
return 0;
err_lvalue_set:
mlxsw_sp_router_xm_ltable_node_put(router_xm, ltable_node);
return err;
}
static void
mlxsw_sp_router_xm_ml_entry_del(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_router_xm_fib_entry *fib_entry)
{
struct mlxsw_sp_router_xm_ltable_node *ltable_node =
fib_entry->ltable_node;
struct mlxsw_sp_router_xm *router_xm = mlxsw_sp->router->xm;
u8 lvalue = fib_entry->lvalue;
ltable_node->lvalue_ref[lvalue]--;
if (lvalue == ltable_node->current_lvalue && lvalue &&
!ltable_node->lvalue_ref[lvalue]) {
u8 new_lvalue = lvalue - 1;
/* Find the biggest L-value left out there. */
while (new_lvalue > 0 && !ltable_node->lvalue_ref[lvalue])
new_lvalue--;
ltable_node->current_lvalue = new_lvalue;
mlxsw_sp_router_xm_ltable_lvalue_set(mlxsw_sp, ltable_node);
/* The L value for prefix/M is decreased.
* Therefore, all entries in M and ML caches matching
* {prefix/M, proto, VR} need to be flushed. Set the flush
* prefix length to M to achieve that.
*/
fib_entry->flush_info.prefix_len = MLXSW_SP_ROUTER_XM_M_VAL;
}
mlxsw_sp_router_xm_ltable_node_put(router_xm, ltable_node);
}
static int
mlxsw_sp_router_xm_ml_entries_add(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm)
{
struct mlxsw_sp_router_xm_fib_entry *fib_entry;
int err;
int i;
for (i = 0; i < op_ctx_xm->entries_count; i++) {
fib_entry = op_ctx_xm->entries[i];
err = mlxsw_sp_router_xm_ml_entry_add(mlxsw_sp, fib_entry);
if (err)
goto rollback;
}
return 0;
rollback:
for (i--; i >= 0; i--) {
fib_entry = op_ctx_xm->entries[i];
mlxsw_sp_router_xm_ml_entry_del(mlxsw_sp, fib_entry);
}
return err;
}
static void
mlxsw_sp_router_xm_ml_entries_del(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm)
{
struct mlxsw_sp_router_xm_fib_entry *fib_entry;
int i;
for (i = 0; i < op_ctx_xm->entries_count; i++) {
fib_entry = op_ctx_xm->entries[i];
mlxsw_sp_router_xm_ml_entry_del(mlxsw_sp, fib_entry);
}
}
static void
mlxsw_sp_router_xm_ml_entries_cache_flush(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm)
{
struct mlxsw_sp_router_xm_fib_entry *fib_entry;
int err;
int i;
for (i = 0; i < op_ctx_xm->entries_count; i++) {
fib_entry = op_ctx_xm->entries[i];
err = mlxsw_sp_router_xm_cache_flush_schedule(mlxsw_sp,
&fib_entry->flush_info);
if (err)
dev_err(mlxsw_sp->bus_info->dev, "Failed to flush XM cache\n");
}
}
static int mlxsw_sp_router_ll_xm_fib_entry_commit(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
bool *postponed_for_bulk)
{
struct mlxsw_sp_fib_entry_op_ctx_xm *op_ctx_xm = (void *) op_ctx->ll_priv;
struct mlxsw_sp_router_xm_fib_entry *fib_entry;
u8 num_rec;
int err;
int i;
op_ctx_xm->trans_offset += op_ctx_xm->trans_item_len;
op_ctx_xm->entries_count++;
/* Check if bulking is possible and there is still room for another
* FIB entry record. The size of 'trans_item_len' is either size of IPv4
* command or size of IPv6 command. Not possible to mix those in a
* single XMDR write.
*/
if (op_ctx->bulk_ok &&
op_ctx_xm->trans_offset + op_ctx_xm->trans_item_len <= MLXSW_REG_XMDR_TRANS_LEN) {
if (postponed_for_bulk)
*postponed_for_bulk = true;
return 0;
}
if (op_ctx->event == FIB_EVENT_ENTRY_REPLACE) {
/* The L-table is updated inside. It has to be done before
* the prefix is inserted.
*/
err = mlxsw_sp_router_xm_ml_entries_add(mlxsw_sp, op_ctx_xm);
if (err)
goto out;
}
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(xmdr), op_ctx_xm->xmdr_pl);
if (err)
goto out;
num_rec = mlxsw_reg_xmdr_num_rec_get(op_ctx_xm->xmdr_pl);
if (num_rec > op_ctx_xm->entries_count) {
dev_err(mlxsw_sp->bus_info->dev, "Invalid XMDR number of records\n");
err = -EIO;
goto out;
}
for (i = 0; i < num_rec; i++) {
if (!mlxsw_reg_xmdr_reply_vect_get(op_ctx_xm->xmdr_pl, i)) {
dev_err(mlxsw_sp->bus_info->dev, "Command send over XMDR failed\n");
err = -EIO;
goto out;
} else {
fib_entry = op_ctx_xm->entries[i];
fib_entry->committed = true;
}
}
if (op_ctx->event == FIB_EVENT_ENTRY_DEL)
/* The L-table is updated inside. It has to be done after
* the prefix was removed.
*/
mlxsw_sp_router_xm_ml_entries_del(mlxsw_sp, op_ctx_xm);
/* At the very end, do the XLT cache flushing to evict stale
* M and ML cache entries after prefixes were inserted/removed.
*/
mlxsw_sp_router_xm_ml_entries_cache_flush(mlxsw_sp, op_ctx_xm);
out:
/* Next pack call is going to do reinitialization */
op_ctx->initialized = false;
return err;
}
static bool mlxsw_sp_router_ll_xm_fib_entry_is_committed(struct mlxsw_sp_fib_entry_priv *priv)
{
struct mlxsw_sp_router_xm_fib_entry *fib_entry = (void *) priv->priv;
return fib_entry->committed;
}
const struct mlxsw_sp_router_ll_ops mlxsw_sp_router_ll_xm_ops = {
.init = mlxsw_sp_router_ll_xm_init,
.ralta_write = mlxsw_sp_router_ll_xm_ralta_write,
.ralst_write = mlxsw_sp_router_ll_xm_ralst_write,
.raltb_write = mlxsw_sp_router_ll_xm_raltb_write,
.fib_entry_op_ctx_size = sizeof(struct mlxsw_sp_fib_entry_op_ctx_xm),
.fib_entry_priv_size = sizeof(struct mlxsw_sp_router_xm_fib_entry),
.fib_entry_pack = mlxsw_sp_router_ll_xm_fib_entry_pack,
.fib_entry_act_remote_pack = mlxsw_sp_router_ll_xm_fib_entry_act_remote_pack,
.fib_entry_act_local_pack = mlxsw_sp_router_ll_xm_fib_entry_act_local_pack,
.fib_entry_act_ip2me_pack = mlxsw_sp_router_ll_xm_fib_entry_act_ip2me_pack,
.fib_entry_act_ip2me_tun_pack = mlxsw_sp_router_ll_xm_fib_entry_act_ip2me_tun_pack,
.fib_entry_commit = mlxsw_sp_router_ll_xm_fib_entry_commit,
.fib_entry_is_committed = mlxsw_sp_router_ll_xm_fib_entry_is_committed,
};
#define MLXSW_SP_ROUTER_XM_MINDEX_SIZE (64 * 1024)
int mlxsw_sp_router_xm_init(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_router_xm *router_xm;
char rxltm_pl[MLXSW_REG_RXLTM_LEN];
char xltq_pl[MLXSW_REG_XLTQ_LEN];
u32 mindex_size;
u16 device_id;
int err;
if (!mlxsw_sp->bus_info->xm_exists)
return 0;
router_xm = kzalloc(sizeof(*router_xm), GFP_KERNEL);
if (!router_xm)
return -ENOMEM;
mlxsw_reg_xltq_pack(xltq_pl);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(xltq), xltq_pl);
if (err)
goto err_xltq_query;
mlxsw_reg_xltq_unpack(xltq_pl, &device_id, &router_xm->ipv4_supported,
&router_xm->ipv6_supported, &router_xm->entries_size, &mindex_size);
if (device_id != MLXSW_REG_XLTQ_XM_DEVICE_ID_XLT) {
dev_err(mlxsw_sp->bus_info->dev, "Invalid XM device id\n");
err = -EINVAL;
goto err_device_id_check;
}
if (mindex_size != MLXSW_SP_ROUTER_XM_MINDEX_SIZE) {
dev_err(mlxsw_sp->bus_info->dev, "Unexpected M-index size\n");
err = -EINVAL;
goto err_mindex_size_check;
}
mlxsw_reg_rxltm_pack(rxltm_pl, mlxsw_sp_router_xm_m_val[MLXSW_SP_L3_PROTO_IPV4],
mlxsw_sp_router_xm_m_val[MLXSW_SP_L3_PROTO_IPV6]);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rxltm), rxltm_pl);
if (err)
goto err_rxltm_write;
err = rhashtable_init(&router_xm->ltable_ht, &mlxsw_sp_router_xm_ltable_ht_params);
if (err)
goto err_ltable_ht_init;
err = rhashtable_init(&router_xm->flush_ht, &mlxsw_sp_router_xm_flush_ht_params);
if (err)
goto err_flush_ht_init;
mlxsw_sp->router->xm = router_xm;
return 0;
err_flush_ht_init:
rhashtable_destroy(&router_xm->ltable_ht);
err_ltable_ht_init:
err_rxltm_write:
err_mindex_size_check:
err_device_id_check:
err_xltq_query:
kfree(router_xm);
return err;
}
void mlxsw_sp_router_xm_fini(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_router_xm *router_xm = mlxsw_sp->router->xm;
if (!mlxsw_sp->bus_info->xm_exists)
return;
rhashtable_destroy(&router_xm->flush_ht);
rhashtable_destroy(&router_xm->ltable_ht);
kfree(router_xm);
}
bool mlxsw_sp_router_xm_ipv4_is_supported(const struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_router_xm *router_xm = mlxsw_sp->router->xm;
return router_xm && router_xm->ipv4_supported;
}
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