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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-04 13:38:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-04 13:38:03 -0700
commit0326074ff4652329f2a1a9c8685104576bd8d131 (patch)
tree9a7574c7ccb05bf4c7cb34fc5a65457bb8f495cb /drivers/net/ethernet/mellanox/mlxsw/minimal.c
parent522667b24f08009591c90e75bfe2ffb67f555498 (diff)
parent681bf011b9b5989c6e9db6beb64494918aab9a43 (diff)
Merge tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core: - Introduce and use a single page frag cache for allocating small skb heads, clawing back the 10-20% performance regression in UDP flood test from previous fixes. - Run packets which already went thru HW coalescing thru SW GRO. This significantly improves TCP segment coalescing and simplifies deployments as different workloads benefit from HW or SW GRO. - Shrink the size of the base zero-copy send structure. - Move TCP init under a new slow / sleepable version of DO_ONCE(). BPF: - Add BPF-specific, any-context-safe memory allocator. - Add helpers/kfuncs for PKCS#7 signature verification from BPF programs. - Define a new map type and related helpers for user space -> kernel communication over a ring buffer (BPF_MAP_TYPE_USER_RINGBUF). - Allow targeting BPF iterators to loop through resources of one task/thread. - Add ability to call selected destructive functions. Expose crash_kexec() to allow BPF to trigger a kernel dump. Use CAP_SYS_BOOT check on the loading process to judge permissions. - Enable BPF to collect custom hierarchical cgroup stats efficiently by integrating with the rstat framework. - Support struct arguments for trampoline based programs. Only structs with size <= 16B and x86 are supported. - Invoke cgroup/connect{4,6} programs for unprivileged ICMP ping sockets (instead of just TCP and UDP sockets). - Add a helper for accessing CLOCK_TAI for time sensitive network related programs. - Support accessing network tunnel metadata's flags. - Make TCP SYN ACK RTO tunable by BPF programs with TCP Fast Open. - Add support for writing to Netfilter's nf_conn:mark. Protocols: - WiFi: more Extremely High Throughput (EHT) and Multi-Link Operation (MLO) work (802.11be, WiFi 7). - vsock: improve support for SO_RCVLOWAT. - SMC: support SO_REUSEPORT. - Netlink: define and document how to use netlink in a "modern" way. Support reporting missing attributes via extended ACK. - IPSec: support collect metadata mode for xfrm interfaces. - TCPv6: send consistent autoflowlabel in SYN_RECV state and RST packets. - TCP: introduce optional per-netns connection hash table to allow better isolation between namespaces (opt-in, at the cost of memory and cache pressure). - MPTCP: support TCP_FASTOPEN_CONNECT. - Add NEXT-C-SID support in Segment Routing (SRv6) End behavior. - Adjust IP_UNICAST_IF sockopt behavior for connected UDP sockets. - Open vSwitch: - Allow specifying ifindex of new interfaces. - Allow conntrack and metering in non-initial user namespace. - TLS: support the Korean ARIA-GCM crypto algorithm. - Remove DECnet support. Driver API: - Allow selecting the conduit interface used by each port in DSA switches, at runtime. - Ethernet Power Sourcing Equipment and Power Device support. - Add tc-taprio support for queueMaxSDU parameter, i.e. setting per traffic class max frame size for time-based packet schedules. - Support PHY rate matching - adapting between differing host-side and link-side speeds. - Introduce QUSGMII PHY mode and 1000BASE-KX interface mode. - Validate OF (device tree) nodes for DSA shared ports; make phylink-related properties mandatory on DSA and CPU ports. Enforcing more uniformity should allow transitioning to phylink. - Require that flash component name used during update matches one of the components for which version is reported by info_get(). - Remove "weight" argument from driver-facing NAPI API as much as possible. It's one of those magic knobs which seemed like a good idea at the time but is too indirect to use in practice. - Support offload of TLS connections with 256 bit keys. New hardware / drivers: - Ethernet: - Microchip KSZ9896 6-port Gigabit Ethernet Switch - Renesas Ethernet AVB (EtherAVB-IF) Gen4 SoCs - Analog Devices ADIN1110 and ADIN2111 industrial single pair Ethernet (10BASE-T1L) MAC+PHY. - Rockchip RV1126 Gigabit Ethernet (a version of stmmac IP). - Ethernet SFPs / modules: - RollBall / Hilink / Turris 10G copper SFPs - HALNy GPON module - WiFi: - CYW43439 SDIO chipset (brcmfmac) - CYW89459 PCIe chipset (brcmfmac) - BCM4378 on Apple platforms (brcmfmac) Drivers: - CAN: - gs_usb: HW timestamp support - Ethernet PHYs: - lan8814: cable diagnostics - Ethernet NICs: - Intel (100G): - implement control of FCS/CRC stripping - port splitting via devlink - L2TPv3 filtering offload - nVidia/Mellanox: - tunnel offload for sub-functions - MACSec offload, w/ Extended packet number and replay window offload - significantly restructure, and optimize the AF_XDP support, align the behavior with other vendors - Huawei: - configuring DSCP map for traffic class selection - querying standard FEC statistics - querying SerDes lane number via ethtool - Marvell/Cavium: - egress priority flow control - MACSec offload - AMD/SolarFlare: - PTP over IPv6 and raw Ethernet - small / embedded: - ax88772: convert to phylink (to support SFP cages) - altera: tse: convert to phylink - ftgmac100: support fixed link - enetc: standard Ethtool counters - macb: ZynqMP SGMII dynamic configuration support - tsnep: support multi-queue and use page pool - lan743x: Rx IP & TCP checksum offload - igc: add xdp frags support to ndo_xdp_xmit - Ethernet high-speed switches: - Marvell (prestera): - support SPAN port features (traffic mirroring) - nexthop object offloading - Microchip (sparx5): - multicast forwarding offload - QoS queuing offload (tc-mqprio, tc-tbf, tc-ets) - Ethernet embedded switches: - Marvell (mv88e6xxx): - support RGMII cmode - NXP (felix): - standardized ethtool counters - Microchip (lan966x): - QoS queuing offload (tc-mqprio, tc-tbf, tc-cbs, tc-ets) - traffic policing and mirroring - link aggregation / bonding offload - QUSGMII PHY mode support - Qualcomm 802.11ax WiFi (ath11k): - cold boot calibration support on WCN6750 - support to connect to a non-transmit MBSSID AP profile - enable remain-on-channel support on WCN6750 - Wake-on-WLAN support for WCN6750 - support to provide transmit power from firmware via nl80211 - support to get power save duration for each client - spectral scan support for 160 MHz - MediaTek WiFi (mt76): - WiFi-to-Ethernet bridging offload for MT7986 chips - RealTek WiFi (rtw89): - P2P support" * tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1864 commits) eth: pse: add missing static inlines once: rename _SLOW to _SLEEPABLE net: pse-pd: add regulator based PSE driver dt-bindings: net: pse-dt: add bindings for regulator based PoDL PSE controller ethtool: add interface to interact with Ethernet Power Equipment net: mdiobus: search for PSE nodes by parsing PHY nodes. net: mdiobus: fwnode_mdiobus_register_phy() rework error handling net: add framework to support Ethernet PSE and PDs devices dt-bindings: net: phy: add PoDL PSE property net: marvell: prestera: Propagate nh state from hw to kernel net: marvell: prestera: Add neighbour cache accounting net: marvell: prestera: add stub handler neighbour events net: marvell: prestera: Add heplers to interact with fib_notifier_info net: marvell: prestera: Add length macros for prestera_ip_addr net: marvell: prestera: add delayed wq and flush wq on deinit net: marvell: prestera: Add strict cleanup of fib arbiter net: marvell: prestera: Add cleanup of allocated fib_nodes net: marvell: prestera: Add router nexthops ABI eth: octeon: fix build after netif_napi_add() changes net/mlx5: E-Switch, Return EBUSY if can't get mode lock ...
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/minimal.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/minimal.c379
1 files changed, 314 insertions, 65 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/minimal.c b/drivers/net/ethernet/mellanox/mlxsw/minimal.c
index bb1cd4bae82e..55b3c42bb007 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/minimal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/minimal.c
@@ -26,20 +26,29 @@ static const struct mlxsw_fw_rev mlxsw_m_fw_rev = {
struct mlxsw_m_port;
+struct mlxsw_m_line_card {
+ bool active;
+ int module_to_port[];
+};
+
struct mlxsw_m {
struct mlxsw_m_port **ports;
- int *module_to_port;
struct mlxsw_core *core;
const struct mlxsw_bus_info *bus_info;
u8 base_mac[ETH_ALEN];
u8 max_ports;
+ u8 max_modules_per_slot; /* Maximum number of modules per-slot. */
+ u8 num_of_slots; /* Including the main board. */
+ struct mlxsw_m_line_card **line_cards;
};
struct mlxsw_m_port {
struct net_device *dev;
struct mlxsw_m *mlxsw_m;
u16 local_port;
+ u8 slot_index;
u8 module;
+ u8 module_offset;
};
static int mlxsw_m_base_mac_get(struct mlxsw_m *mlxsw_m)
@@ -94,14 +103,14 @@ static void mlxsw_m_module_get_drvinfo(struct net_device *dev,
struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev);
struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m;
- strlcpy(drvinfo->driver, mlxsw_m->bus_info->device_kind,
+ strscpy(drvinfo->driver, mlxsw_m->bus_info->device_kind,
sizeof(drvinfo->driver));
snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
"%d.%d.%d",
mlxsw_m->bus_info->fw_rev.major,
mlxsw_m->bus_info->fw_rev.minor,
mlxsw_m->bus_info->fw_rev.subminor);
- strlcpy(drvinfo->bus_info, mlxsw_m->bus_info->device_name,
+ strscpy(drvinfo->bus_info, mlxsw_m->bus_info->device_name,
sizeof(drvinfo->bus_info));
}
@@ -111,8 +120,9 @@ static int mlxsw_m_get_module_info(struct net_device *netdev,
struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
- return mlxsw_env_get_module_info(netdev, core, 0, mlxsw_m_port->module,
- modinfo);
+ return mlxsw_env_get_module_info(netdev, core,
+ mlxsw_m_port->slot_index,
+ mlxsw_m_port->module, modinfo);
}
static int
@@ -122,7 +132,8 @@ mlxsw_m_get_module_eeprom(struct net_device *netdev, struct ethtool_eeprom *ee,
struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
- return mlxsw_env_get_module_eeprom(netdev, core, 0,
+ return mlxsw_env_get_module_eeprom(netdev, core,
+ mlxsw_m_port->slot_index,
mlxsw_m_port->module, ee, data);
}
@@ -134,7 +145,8 @@ mlxsw_m_get_module_eeprom_by_page(struct net_device *netdev,
struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
- return mlxsw_env_get_module_eeprom_by_page(core, 0,
+ return mlxsw_env_get_module_eeprom_by_page(core,
+ mlxsw_m_port->slot_index,
mlxsw_m_port->module,
page, extack);
}
@@ -144,7 +156,8 @@ static int mlxsw_m_reset(struct net_device *netdev, u32 *flags)
struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
- return mlxsw_env_reset_module(netdev, core, 0, mlxsw_m_port->module,
+ return mlxsw_env_reset_module(netdev, core, mlxsw_m_port->slot_index,
+ mlxsw_m_port->module,
flags);
}
@@ -156,7 +169,8 @@ mlxsw_m_get_module_power_mode(struct net_device *netdev,
struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
- return mlxsw_env_get_module_power_mode(core, 0, mlxsw_m_port->module,
+ return mlxsw_env_get_module_power_mode(core, mlxsw_m_port->slot_index,
+ mlxsw_m_port->module,
params, extack);
}
@@ -168,7 +182,8 @@ mlxsw_m_set_module_power_mode(struct net_device *netdev,
struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
- return mlxsw_env_set_module_power_mode(core, 0, mlxsw_m_port->module,
+ return mlxsw_env_set_module_power_mode(core, mlxsw_m_port->slot_index,
+ mlxsw_m_port->module,
params->policy, extack);
}
@@ -184,7 +199,7 @@ static const struct ethtool_ops mlxsw_m_port_ethtool_ops = {
static int
mlxsw_m_port_module_info_get(struct mlxsw_m *mlxsw_m, u16 local_port,
- u8 *p_module, u8 *p_width)
+ u8 *p_module, u8 *p_width, u8 *p_slot_index)
{
char pmlp_pl[MLXSW_REG_PMLP_LEN];
int err;
@@ -195,6 +210,7 @@ mlxsw_m_port_module_info_get(struct mlxsw_m *mlxsw_m, u16 local_port,
return err;
*p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
*p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
+ *p_slot_index = mlxsw_reg_pmlp_slot_index_get(pmlp_pl, 0);
return 0;
}
@@ -212,18 +228,25 @@ mlxsw_m_port_dev_addr_get(struct mlxsw_m_port *mlxsw_m_port)
if (err)
return err;
mlxsw_reg_ppad_mac_memcpy_from(ppad_pl, addr);
- eth_hw_addr_gen(mlxsw_m_port->dev, addr, mlxsw_m_port->module + 1);
+ eth_hw_addr_gen(mlxsw_m_port->dev, addr, mlxsw_m_port->module + 1 +
+ mlxsw_m_port->module_offset);
return 0;
}
+static bool mlxsw_m_port_created(struct mlxsw_m *mlxsw_m, u16 local_port)
+{
+ return mlxsw_m->ports[local_port];
+}
+
static int
-mlxsw_m_port_create(struct mlxsw_m *mlxsw_m, u16 local_port, u8 module)
+mlxsw_m_port_create(struct mlxsw_m *mlxsw_m, u16 local_port, u8 slot_index,
+ u8 module)
{
struct mlxsw_m_port *mlxsw_m_port;
struct net_device *dev;
int err;
- err = mlxsw_core_port_init(mlxsw_m->core, local_port, 0,
+ err = mlxsw_core_port_init(mlxsw_m->core, local_port, slot_index,
module + 1, false, 0, false,
0, mlxsw_m->base_mac,
sizeof(mlxsw_m->base_mac));
@@ -246,6 +269,15 @@ mlxsw_m_port_create(struct mlxsw_m *mlxsw_m, u16 local_port, u8 module)
mlxsw_m_port->mlxsw_m = mlxsw_m;
mlxsw_m_port->local_port = local_port;
mlxsw_m_port->module = module;
+ mlxsw_m_port->slot_index = slot_index;
+ /* Add module offset for line card. Offset for main board iz zero.
+ * For line card in slot #n offset is calculated as (#n - 1)
+ * multiplied by maximum modules number, which could be found on a line
+ * card.
+ */
+ mlxsw_m_port->module_offset = mlxsw_m_port->slot_index ?
+ (mlxsw_m_port->slot_index - 1) *
+ mlxsw_m->max_modules_per_slot : 0;
dev->netdev_ops = &mlxsw_m_port_netdev_ops;
dev->ethtool_ops = &mlxsw_m_port_ethtool_ops;
@@ -291,19 +323,29 @@ static void mlxsw_m_port_remove(struct mlxsw_m *mlxsw_m, u16 local_port)
mlxsw_core_port_fini(mlxsw_m->core, local_port);
}
+static int*
+mlxsw_m_port_mapping_get(struct mlxsw_m *mlxsw_m, u8 slot_index, u8 module)
+{
+ return &mlxsw_m->line_cards[slot_index]->module_to_port[module];
+}
+
static int mlxsw_m_port_module_map(struct mlxsw_m *mlxsw_m, u16 local_port,
u8 *last_module)
{
unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core);
- u8 module, width;
+ u8 module, width, slot_index;
+ int *module_to_port;
int err;
/* Fill out to local port mapping array */
err = mlxsw_m_port_module_info_get(mlxsw_m, local_port, &module,
- &width);
+ &width, &slot_index);
if (err)
return err;
+ /* Skip if line card has been already configured */
+ if (mlxsw_m->line_cards[slot_index]->active)
+ return 0;
if (!width)
return 0;
/* Skip, if port belongs to the cluster */
@@ -313,91 +355,220 @@ static int mlxsw_m_port_module_map(struct mlxsw_m *mlxsw_m, u16 local_port,
if (WARN_ON_ONCE(module >= max_ports))
return -EINVAL;
- mlxsw_env_module_port_map(mlxsw_m->core, 0, module);
- mlxsw_m->module_to_port[module] = ++mlxsw_m->max_ports;
+ mlxsw_env_module_port_map(mlxsw_m->core, slot_index, module);
+ module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, module);
+ *module_to_port = local_port;
return 0;
}
-static void mlxsw_m_port_module_unmap(struct mlxsw_m *mlxsw_m, u8 module)
+static void
+mlxsw_m_port_module_unmap(struct mlxsw_m *mlxsw_m, u8 slot_index, u8 module)
{
- mlxsw_m->module_to_port[module] = -1;
- mlxsw_env_module_port_unmap(mlxsw_m->core, 0, module);
+ int *module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index,
+ module);
+ *module_to_port = -1;
+ mlxsw_env_module_port_unmap(mlxsw_m->core, slot_index, module);
}
-static int mlxsw_m_ports_create(struct mlxsw_m *mlxsw_m)
+static int mlxsw_m_linecards_init(struct mlxsw_m *mlxsw_m)
{
unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core);
- u8 last_module = max_ports;
- int i;
- int err;
+ char mgpir_pl[MLXSW_REG_MGPIR_LEN];
+ u8 num_of_modules;
+ int i, j, err;
+
+ mlxsw_reg_mgpir_pack(mgpir_pl, 0);
+ err = mlxsw_reg_query(mlxsw_m->core, MLXSW_REG(mgpir), mgpir_pl);
+ if (err)
+ return err;
+
+ mlxsw_reg_mgpir_unpack(mgpir_pl, NULL, NULL, NULL, &num_of_modules,
+ &mlxsw_m->num_of_slots);
+ /* If the system is modular, get the maximum number of modules per-slot.
+ * Otherwise, get the maximum number of modules on the main board.
+ */
+ if (mlxsw_m->num_of_slots)
+ mlxsw_m->max_modules_per_slot =
+ mlxsw_reg_mgpir_max_modules_per_slot_get(mgpir_pl);
+ else
+ mlxsw_m->max_modules_per_slot = num_of_modules;
+ /* Add slot for main board. */
+ mlxsw_m->num_of_slots += 1;
mlxsw_m->ports = kcalloc(max_ports, sizeof(*mlxsw_m->ports),
GFP_KERNEL);
if (!mlxsw_m->ports)
return -ENOMEM;
- mlxsw_m->module_to_port = kmalloc_array(max_ports, sizeof(int),
- GFP_KERNEL);
- if (!mlxsw_m->module_to_port) {
+ mlxsw_m->line_cards = kcalloc(mlxsw_m->num_of_slots,
+ sizeof(*mlxsw_m->line_cards),
+ GFP_KERNEL);
+ if (!mlxsw_m->line_cards) {
err = -ENOMEM;
- goto err_module_to_port_alloc;
+ goto err_kcalloc;
}
- /* Invalidate the entries of module to local port mapping array */
- for (i = 0; i < max_ports; i++)
- mlxsw_m->module_to_port[i] = -1;
+ for (i = 0; i < mlxsw_m->num_of_slots; i++) {
+ mlxsw_m->line_cards[i] =
+ kzalloc(struct_size(mlxsw_m->line_cards[i],
+ module_to_port,
+ mlxsw_m->max_modules_per_slot),
+ GFP_KERNEL);
+ if (!mlxsw_m->line_cards[i]) {
+ err = -ENOMEM;
+ goto err_kmalloc_array;
+ }
- /* Fill out module to local port mapping array */
- for (i = 1; i < max_ports; i++) {
- err = mlxsw_m_port_module_map(mlxsw_m, i, &last_module);
- if (err)
- goto err_module_to_port_map;
+ /* Invalidate the entries of module to local port mapping array. */
+ for (j = 0; j < mlxsw_m->max_modules_per_slot; j++)
+ mlxsw_m->line_cards[i]->module_to_port[j] = -1;
}
- /* Create port objects for each valid entry */
- for (i = 0; i < mlxsw_m->max_ports; i++) {
- if (mlxsw_m->module_to_port[i] > 0) {
- err = mlxsw_m_port_create(mlxsw_m,
- mlxsw_m->module_to_port[i],
- i);
+ return 0;
+
+err_kmalloc_array:
+ for (i--; i >= 0; i--)
+ kfree(mlxsw_m->line_cards[i]);
+err_kcalloc:
+ kfree(mlxsw_m->ports);
+ return err;
+}
+
+static void mlxsw_m_linecards_fini(struct mlxsw_m *mlxsw_m)
+{
+ int i = mlxsw_m->num_of_slots;
+
+ for (i--; i >= 0; i--)
+ kfree(mlxsw_m->line_cards[i]);
+ kfree(mlxsw_m->line_cards);
+ kfree(mlxsw_m->ports);
+}
+
+static void
+mlxsw_m_linecard_port_module_unmap(struct mlxsw_m *mlxsw_m, u8 slot_index)
+{
+ int i;
+
+ for (i = mlxsw_m->max_modules_per_slot - 1; i >= 0; i--) {
+ int *module_to_port;
+
+ module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, i);
+ if (*module_to_port > 0)
+ mlxsw_m_port_module_unmap(mlxsw_m, slot_index, i);
+ }
+}
+
+static int
+mlxsw_m_linecard_ports_create(struct mlxsw_m *mlxsw_m, u8 slot_index)
+{
+ int *module_to_port;
+ int i, err;
+
+ for (i = 0; i < mlxsw_m->max_modules_per_slot; i++) {
+ module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, i);
+ if (*module_to_port > 0) {
+ err = mlxsw_m_port_create(mlxsw_m, *module_to_port,
+ slot_index, i);
if (err)
- goto err_module_to_port_create;
+ goto err_port_create;
+ /* Mark slot as active */
+ if (!mlxsw_m->line_cards[slot_index]->active)
+ mlxsw_m->line_cards[slot_index]->active = true;
}
}
-
return 0;
-err_module_to_port_create:
+err_port_create:
for (i--; i >= 0; i--) {
- if (mlxsw_m->module_to_port[i] > 0)
- mlxsw_m_port_remove(mlxsw_m,
- mlxsw_m->module_to_port[i]);
+ module_to_port = mlxsw_m_port_mapping_get(mlxsw_m, slot_index, i);
+ if (*module_to_port > 0 &&
+ mlxsw_m_port_created(mlxsw_m, *module_to_port)) {
+ mlxsw_m_port_remove(mlxsw_m, *module_to_port);
+ /* Mark slot as inactive */
+ if (mlxsw_m->line_cards[slot_index]->active)
+ mlxsw_m->line_cards[slot_index]->active = false;
+ }
}
- i = max_ports;
-err_module_to_port_map:
- for (i--; i > 0; i--)
- mlxsw_m_port_module_unmap(mlxsw_m, i);
- kfree(mlxsw_m->module_to_port);
-err_module_to_port_alloc:
- kfree(mlxsw_m->ports);
return err;
}
-static void mlxsw_m_ports_remove(struct mlxsw_m *mlxsw_m)
+static void
+mlxsw_m_linecard_ports_remove(struct mlxsw_m *mlxsw_m, u8 slot_index)
{
int i;
- for (i = 0; i < mlxsw_m->max_ports; i++) {
- if (mlxsw_m->module_to_port[i] > 0) {
- mlxsw_m_port_remove(mlxsw_m,
- mlxsw_m->module_to_port[i]);
- mlxsw_m_port_module_unmap(mlxsw_m, i);
+ for (i = 0; i < mlxsw_m->max_modules_per_slot; i++) {
+ int *module_to_port = mlxsw_m_port_mapping_get(mlxsw_m,
+ slot_index, i);
+
+ if (*module_to_port > 0 &&
+ mlxsw_m_port_created(mlxsw_m, *module_to_port)) {
+ mlxsw_m_port_remove(mlxsw_m, *module_to_port);
+ mlxsw_m_port_module_unmap(mlxsw_m, slot_index, i);
}
}
+}
- kfree(mlxsw_m->module_to_port);
- kfree(mlxsw_m->ports);
+static int mlxsw_m_ports_module_map(struct mlxsw_m *mlxsw_m)
+{
+ unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core);
+ u8 last_module = max_ports;
+ int i, err;
+
+ for (i = 1; i < max_ports; i++) {
+ err = mlxsw_m_port_module_map(mlxsw_m, i, &last_module);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int mlxsw_m_ports_create(struct mlxsw_m *mlxsw_m)
+{
+ int err;
+
+ /* Fill out module to local port mapping array */
+ err = mlxsw_m_ports_module_map(mlxsw_m);
+ if (err)
+ goto err_ports_module_map;
+
+ /* Create port objects for each valid entry */
+ err = mlxsw_m_linecard_ports_create(mlxsw_m, 0);
+ if (err)
+ goto err_linecard_ports_create;
+
+ return 0;
+
+err_linecard_ports_create:
+err_ports_module_map:
+ mlxsw_m_linecard_port_module_unmap(mlxsw_m, 0);
+
+ return err;
+}
+
+static void mlxsw_m_ports_remove(struct mlxsw_m *mlxsw_m)
+{
+ mlxsw_m_linecard_ports_remove(mlxsw_m, 0);
+}
+
+static void
+mlxsw_m_ports_remove_selected(struct mlxsw_core *mlxsw_core,
+ bool (*selector)(void *priv, u16 local_port),
+ void *priv)
+{
+ struct mlxsw_m *mlxsw_m = mlxsw_core_driver_priv(mlxsw_core);
+ struct mlxsw_linecard *linecard_priv = priv;
+ struct mlxsw_m_line_card *linecard;
+
+ linecard = mlxsw_m->line_cards[linecard_priv->slot_index];
+
+ if (WARN_ON(!linecard->active))
+ return;
+
+ mlxsw_m_linecard_ports_remove(mlxsw_m, linecard_priv->slot_index);
+ linecard->active = false;
}
static int mlxsw_m_fw_rev_validate(struct mlxsw_m *mlxsw_m)
@@ -418,6 +589,60 @@ static int mlxsw_m_fw_rev_validate(struct mlxsw_m *mlxsw_m)
return -EINVAL;
}
+static void
+mlxsw_m_got_active(struct mlxsw_core *mlxsw_core, u8 slot_index, void *priv)
+{
+ struct mlxsw_m_line_card *linecard;
+ struct mlxsw_m *mlxsw_m = priv;
+ int err;
+
+ linecard = mlxsw_m->line_cards[slot_index];
+ /* Skip if line card has been already configured during init */
+ if (linecard->active)
+ return;
+
+ /* Fill out module to local port mapping array */
+ err = mlxsw_m_ports_module_map(mlxsw_m);
+ if (err)
+ goto err_ports_module_map;
+
+ /* Create port objects for each valid entry */
+ err = mlxsw_m_linecard_ports_create(mlxsw_m, slot_index);
+ if (err) {
+ dev_err(mlxsw_m->bus_info->dev, "Failed to create port for line card at slot %d\n",
+ slot_index);
+ goto err_linecard_ports_create;
+ }
+
+ linecard->active = true;
+
+ return;
+
+err_linecard_ports_create:
+err_ports_module_map:
+ mlxsw_m_linecard_port_module_unmap(mlxsw_m, slot_index);
+}
+
+static void
+mlxsw_m_got_inactive(struct mlxsw_core *mlxsw_core, u8 slot_index, void *priv)
+{
+ struct mlxsw_m_line_card *linecard;
+ struct mlxsw_m *mlxsw_m = priv;
+
+ linecard = mlxsw_m->line_cards[slot_index];
+
+ if (WARN_ON(!linecard->active))
+ return;
+
+ mlxsw_m_linecard_ports_remove(mlxsw_m, slot_index);
+ linecard->active = false;
+}
+
+static struct mlxsw_linecards_event_ops mlxsw_m_event_ops = {
+ .got_active = mlxsw_m_got_active,
+ .got_inactive = mlxsw_m_got_inactive,
+};
+
static int mlxsw_m_init(struct mlxsw_core *mlxsw_core,
const struct mlxsw_bus_info *mlxsw_bus_info,
struct netlink_ext_ack *extack)
@@ -438,13 +663,33 @@ static int mlxsw_m_init(struct mlxsw_core *mlxsw_core,
return err;
}
+ err = mlxsw_m_linecards_init(mlxsw_m);
+ if (err) {
+ dev_err(mlxsw_m->bus_info->dev, "Failed to create line cards\n");
+ return err;
+ }
+
+ err = mlxsw_linecards_event_ops_register(mlxsw_core,
+ &mlxsw_m_event_ops, mlxsw_m);
+ if (err) {
+ dev_err(mlxsw_m->bus_info->dev, "Failed to register line cards operations\n");
+ goto linecards_event_ops_register;
+ }
+
err = mlxsw_m_ports_create(mlxsw_m);
if (err) {
dev_err(mlxsw_m->bus_info->dev, "Failed to create ports\n");
- return err;
+ goto err_ports_create;
}
return 0;
+
+err_ports_create:
+ mlxsw_linecards_event_ops_unregister(mlxsw_core,
+ &mlxsw_m_event_ops, mlxsw_m);
+linecards_event_ops_register:
+ mlxsw_m_linecards_fini(mlxsw_m);
+ return err;
}
static void mlxsw_m_fini(struct mlxsw_core *mlxsw_core)
@@ -452,6 +697,9 @@ static void mlxsw_m_fini(struct mlxsw_core *mlxsw_core)
struct mlxsw_m *mlxsw_m = mlxsw_core_driver_priv(mlxsw_core);
mlxsw_m_ports_remove(mlxsw_m);
+ mlxsw_linecards_event_ops_unregister(mlxsw_core,
+ &mlxsw_m_event_ops, mlxsw_m);
+ mlxsw_m_linecards_fini(mlxsw_m);
}
static const struct mlxsw_config_profile mlxsw_m_config_profile;
@@ -461,6 +709,7 @@ static struct mlxsw_driver mlxsw_m_driver = {
.priv_size = sizeof(struct mlxsw_m),
.init = mlxsw_m_init,
.fini = mlxsw_m_fini,
+ .ports_remove_selected = mlxsw_m_ports_remove_selected,
.profile = &mlxsw_m_config_profile,
};