#include <linux/export.h>
#include <linux/err.h>
#include <linux/if_link.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/u64_stats_sync.h>
#include <linux/netdevice.h>
#include <linux/completion.h>
#include <linux/skbuff.h>
static const char mlxsw_core_driver_name[] = "mlxsw_core";
-static struct dentry *mlxsw_core_dbg_root;
-
static struct workqueue_struct *mlxsw_wq;
static struct workqueue_struct *mlxsw_owq;
-struct mlxsw_core_pcpu_stats {
- u64 trap_rx_packets[MLXSW_TRAP_ID_MAX];
- u64 trap_rx_bytes[MLXSW_TRAP_ID_MAX];
- u64 port_rx_packets[MLXSW_PORT_MAX_PORTS];
- u64 port_rx_bytes[MLXSW_PORT_MAX_PORTS];
- struct u64_stats_sync syncp;
- u32 trap_rx_dropped[MLXSW_TRAP_ID_MAX];
- u32 port_rx_dropped[MLXSW_PORT_MAX_PORTS];
- u32 trap_rx_invalid;
- u32 port_rx_invalid;
-};
-
struct mlxsw_core_port {
struct devlink_port devlink_port;
void *port_driver_priv;
spinlock_t trans_list_lock; /* protects trans_list writes */
bool use_emad;
} emad;
- struct mlxsw_core_pcpu_stats __percpu *pcpu_stats;
- struct dentry *dbg_dir;
- struct {
- struct debugfs_blob_wrapper vsd_blob;
- struct debugfs_blob_wrapper psid_blob;
- } dbg;
struct {
u8 *mapping; /* lag_id+port_index to local_port mapping */
} lag;
* Core functions
*****************/
-static int mlxsw_core_rx_stats_dbg_read(struct seq_file *file, void *data)
-{
- struct mlxsw_core *mlxsw_core = file->private;
- struct mlxsw_core_pcpu_stats *p;
- u64 rx_packets, rx_bytes;
- u64 tmp_rx_packets, tmp_rx_bytes;
- u32 rx_dropped, rx_invalid;
- unsigned int start;
- int i;
- int j;
- static const char hdr[] =
- " NUM RX_PACKETS RX_BYTES RX_DROPPED\n";
-
- seq_printf(file, hdr);
- for (i = 0; i < MLXSW_TRAP_ID_MAX; i++) {
- rx_packets = 0;
- rx_bytes = 0;
- rx_dropped = 0;
- for_each_possible_cpu(j) {
- p = per_cpu_ptr(mlxsw_core->pcpu_stats, j);
- do {
- start = u64_stats_fetch_begin(&p->syncp);
- tmp_rx_packets = p->trap_rx_packets[i];
- tmp_rx_bytes = p->trap_rx_bytes[i];
- } while (u64_stats_fetch_retry(&p->syncp, start));
-
- rx_packets += tmp_rx_packets;
- rx_bytes += tmp_rx_bytes;
- rx_dropped += p->trap_rx_dropped[i];
- }
- seq_printf(file, "trap %3d %12llu %12llu %10u\n",
- i, rx_packets, rx_bytes, rx_dropped);
- }
- rx_invalid = 0;
- for_each_possible_cpu(j) {
- p = per_cpu_ptr(mlxsw_core->pcpu_stats, j);
- rx_invalid += p->trap_rx_invalid;
- }
- seq_printf(file, "trap INV %10u\n",
- rx_invalid);
-
- for (i = 0; i < MLXSW_PORT_MAX_PORTS; i++) {
- rx_packets = 0;
- rx_bytes = 0;
- rx_dropped = 0;
- for_each_possible_cpu(j) {
- p = per_cpu_ptr(mlxsw_core->pcpu_stats, j);
- do {
- start = u64_stats_fetch_begin(&p->syncp);
- tmp_rx_packets = p->port_rx_packets[i];
- tmp_rx_bytes = p->port_rx_bytes[i];
- } while (u64_stats_fetch_retry(&p->syncp, start));
-
- rx_packets += tmp_rx_packets;
- rx_bytes += tmp_rx_bytes;
- rx_dropped += p->port_rx_dropped[i];
- }
- seq_printf(file, "port %3d %12llu %12llu %10u\n",
- i, rx_packets, rx_bytes, rx_dropped);
- }
- rx_invalid = 0;
- for_each_possible_cpu(j) {
- p = per_cpu_ptr(mlxsw_core->pcpu_stats, j);
- rx_invalid += p->port_rx_invalid;
- }
- seq_printf(file, "port INV %10u\n",
- rx_invalid);
- return 0;
-}
-
-static int mlxsw_core_rx_stats_dbg_open(struct inode *inode, struct file *f)
-{
- struct mlxsw_core *mlxsw_core = inode->i_private;
-
- return single_open(f, mlxsw_core_rx_stats_dbg_read, mlxsw_core);
-}
-
-static const struct file_operations mlxsw_core_rx_stats_dbg_ops = {
- .owner = THIS_MODULE,
- .open = mlxsw_core_rx_stats_dbg_open,
- .release = single_release,
- .read = seq_read,
- .llseek = seq_lseek
-};
-
int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver)
{
spin_lock(&mlxsw_core_driver_list_lock);
spin_unlock(&mlxsw_core_driver_list_lock);
}
-static int mlxsw_core_debugfs_init(struct mlxsw_core *mlxsw_core)
-{
- const struct mlxsw_bus_info *bus_info = mlxsw_core->bus_info;
-
- mlxsw_core->dbg_dir = debugfs_create_dir(bus_info->device_name,
- mlxsw_core_dbg_root);
- if (!mlxsw_core->dbg_dir)
- return -ENOMEM;
- debugfs_create_file("rx_stats", S_IRUGO, mlxsw_core->dbg_dir,
- mlxsw_core, &mlxsw_core_rx_stats_dbg_ops);
- mlxsw_core->dbg.vsd_blob.data = (void *) &bus_info->vsd;
- mlxsw_core->dbg.vsd_blob.size = sizeof(bus_info->vsd);
- debugfs_create_blob("vsd", S_IRUGO, mlxsw_core->dbg_dir,
- &mlxsw_core->dbg.vsd_blob);
- mlxsw_core->dbg.psid_blob.data = (void *) &bus_info->psid;
- mlxsw_core->dbg.psid_blob.size = sizeof(bus_info->psid);
- debugfs_create_blob("psid", S_IRUGO, mlxsw_core->dbg_dir,
- &mlxsw_core->dbg.psid_blob);
- return 0;
-}
-
-static void mlxsw_core_debugfs_fini(struct mlxsw_core *mlxsw_core)
-{
- debugfs_remove_recursive(mlxsw_core->dbg_dir);
-}
-
static int mlxsw_devlink_port_split(struct devlink *devlink,
unsigned int port_index,
unsigned int count)
mlxsw_core->bus_priv = bus_priv;
mlxsw_core->bus_info = mlxsw_bus_info;
- mlxsw_core->pcpu_stats =
- netdev_alloc_pcpu_stats(struct mlxsw_core_pcpu_stats);
- if (!mlxsw_core->pcpu_stats) {
- err = -ENOMEM;
- goto err_alloc_stats;
- }
-
err = mlxsw_bus->init(bus_priv, mlxsw_core, mlxsw_driver->profile,
&mlxsw_core->res);
if (err)
goto err_driver_init;
}
- err = mlxsw_core_debugfs_init(mlxsw_core);
- if (err)
- goto err_debugfs_init;
-
return 0;
-err_debugfs_init:
- if (mlxsw_core->driver->fini)
- mlxsw_core->driver->fini(mlxsw_core);
err_driver_init:
mlxsw_thermal_fini(mlxsw_core->thermal);
err_thermal_init:
err_alloc_lag_mapping:
mlxsw_bus->fini(bus_priv);
err_bus_init:
- free_percpu(mlxsw_core->pcpu_stats);
-err_alloc_stats:
devlink_free(devlink);
err_devlink_alloc:
mlxsw_core_driver_put(device_kind);
const char *device_kind = mlxsw_core->bus_info->device_kind;
struct devlink *devlink = priv_to_devlink(mlxsw_core);
- mlxsw_core_debugfs_fini(mlxsw_core);
if (mlxsw_core->driver->fini)
mlxsw_core->driver->fini(mlxsw_core);
mlxsw_thermal_fini(mlxsw_core->thermal);
mlxsw_emad_fini(mlxsw_core);
kfree(mlxsw_core->lag.mapping);
mlxsw_core->bus->fini(mlxsw_core->bus_priv);
- free_percpu(mlxsw_core->pcpu_stats);
devlink_free(devlink);
mlxsw_core_driver_put(device_kind);
}
{
struct mlxsw_rx_listener_item *rxl_item;
const struct mlxsw_rx_listener *rxl;
- struct mlxsw_core_pcpu_stats *pcpu_stats;
u8 local_port;
bool found = false;
if (!found)
goto drop;
- pcpu_stats = this_cpu_ptr(mlxsw_core->pcpu_stats);
- u64_stats_update_begin(&pcpu_stats->syncp);
- pcpu_stats->port_rx_packets[local_port]++;
- pcpu_stats->port_rx_bytes[local_port] += skb->len;
- pcpu_stats->trap_rx_packets[rx_info->trap_id]++;
- pcpu_stats->trap_rx_bytes[rx_info->trap_id] += skb->len;
- u64_stats_update_end(&pcpu_stats->syncp);
-
rxl->func(skb, local_port, rxl_item->priv);
return;
drop:
- if (rx_info->trap_id >= MLXSW_TRAP_ID_MAX)
- this_cpu_inc(mlxsw_core->pcpu_stats->trap_rx_invalid);
- else
- this_cpu_inc(mlxsw_core->pcpu_stats->trap_rx_dropped[rx_info->trap_id]);
- if (local_port >= MLXSW_PORT_MAX_PORTS)
- this_cpu_inc(mlxsw_core->pcpu_stats->port_rx_invalid);
- else
- this_cpu_inc(mlxsw_core->pcpu_stats->port_rx_dropped[local_port]);
dev_kfree_skb(skb);
}
EXPORT_SYMBOL(mlxsw_core_skb_receive);
err = -ENOMEM;
goto err_alloc_ordered_workqueue;
}
- mlxsw_core_dbg_root = debugfs_create_dir(mlxsw_core_driver_name, NULL);
- if (!mlxsw_core_dbg_root) {
- err = -ENOMEM;
- goto err_debugfs_create_dir;
- }
return 0;
-err_debugfs_create_dir:
- destroy_workqueue(mlxsw_owq);
err_alloc_ordered_workqueue:
destroy_workqueue(mlxsw_wq);
return err;
static void __exit mlxsw_core_module_exit(void)
{
- debugfs_remove_recursive(mlxsw_core_dbg_root);
destroy_workqueue(mlxsw_owq);
destroy_workqueue(mlxsw_wq);
}
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <linux/log2.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
#include <linux/string.h>
#include "pci_hw.h"
static const char mlxsw_pci_driver_name[] = "mlxsw_pci";
-static struct dentry *mlxsw_pci_dbg_root;
-
#define mlxsw_pci_write32(mlxsw_pci, reg, val) \
iowrite32be(val, (mlxsw_pci)->hw_addr + (MLXSW_PCI_ ## reg))
#define mlxsw_pci_read32(mlxsw_pci, reg) \
MLXSW_PCI_QUEUE_TYPE_EQ,
};
-static const char *mlxsw_pci_queue_type_str(enum mlxsw_pci_queue_type q_type)
-{
- switch (q_type) {
- case MLXSW_PCI_QUEUE_TYPE_SDQ:
- return "sdq";
- case MLXSW_PCI_QUEUE_TYPE_RDQ:
- return "rdq";
- case MLXSW_PCI_QUEUE_TYPE_CQ:
- return "cq";
- case MLXSW_PCI_QUEUE_TYPE_EQ:
- return "eq";
- }
- BUG();
-}
-
#define MLXSW_PCI_QUEUE_TYPE_COUNT 4
static const u16 mlxsw_pci_doorbell_type_offset[] = {
} comp;
} cmd;
struct mlxsw_bus_info bus_info;
- struct dentry *dbg_dir;
};
static void mlxsw_pci_queue_tasklet_schedule(struct mlxsw_pci_queue *q)
return __mlxsw_pci_queue_count(mlxsw_pci, MLXSW_PCI_QUEUE_TYPE_SDQ);
}
-static u8 mlxsw_pci_rdq_count(struct mlxsw_pci *mlxsw_pci)
-{
- return __mlxsw_pci_queue_count(mlxsw_pci, MLXSW_PCI_QUEUE_TYPE_RDQ);
-}
-
static u8 mlxsw_pci_cq_count(struct mlxsw_pci *mlxsw_pci)
{
return __mlxsw_pci_queue_count(mlxsw_pci, MLXSW_PCI_QUEUE_TYPE_CQ);
}
-static u8 mlxsw_pci_eq_count(struct mlxsw_pci *mlxsw_pci)
-{
- return __mlxsw_pci_queue_count(mlxsw_pci, MLXSW_PCI_QUEUE_TYPE_EQ);
-}
-
static struct mlxsw_pci_queue *
__mlxsw_pci_queue_get(struct mlxsw_pci *mlxsw_pci,
enum mlxsw_pci_queue_type q_type, u8 q_num)
mlxsw_cmd_hw2sw_sdq(mlxsw_pci->core, q->num);
}
-static int mlxsw_pci_sdq_dbg_read(struct seq_file *file, void *data)
-{
- struct mlxsw_pci *mlxsw_pci = dev_get_drvdata(file->private);
- struct mlxsw_pci_queue *q;
- int i;
- static const char hdr[] =
- "NUM PROD_COUNT CONS_COUNT COUNT\n";
-
- seq_printf(file, hdr);
- for (i = 0; i < mlxsw_pci_sdq_count(mlxsw_pci); i++) {
- q = mlxsw_pci_sdq_get(mlxsw_pci, i);
- spin_lock_bh(&q->lock);
- seq_printf(file, "%3d %10d %10d %5d\n",
- i, q->producer_counter, q->consumer_counter,
- q->count);
- spin_unlock_bh(&q->lock);
- }
- return 0;
-}
-
static int mlxsw_pci_wqe_frag_map(struct mlxsw_pci *mlxsw_pci, char *wqe,
int index, char *frag_data, size_t frag_len,
int direction)
}
}
-static int mlxsw_pci_rdq_dbg_read(struct seq_file *file, void *data)
-{
- struct mlxsw_pci *mlxsw_pci = dev_get_drvdata(file->private);
- struct mlxsw_pci_queue *q;
- int i;
- static const char hdr[] =
- "NUM PROD_COUNT CONS_COUNT COUNT\n";
-
- seq_printf(file, hdr);
- for (i = 0; i < mlxsw_pci_rdq_count(mlxsw_pci); i++) {
- q = mlxsw_pci_rdq_get(mlxsw_pci, i);
- spin_lock_bh(&q->lock);
- seq_printf(file, "%3d %10d %10d %5d\n",
- i, q->producer_counter, q->consumer_counter,
- q->count);
- spin_unlock_bh(&q->lock);
- }
- return 0;
-}
-
static int mlxsw_pci_cq_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
struct mlxsw_pci_queue *q)
{
mlxsw_cmd_hw2sw_cq(mlxsw_pci->core, q->num);
}
-static int mlxsw_pci_cq_dbg_read(struct seq_file *file, void *data)
-{
- struct mlxsw_pci *mlxsw_pci = dev_get_drvdata(file->private);
-
- struct mlxsw_pci_queue *q;
- int i;
- static const char hdr[] =
- "NUM CONS_INDEX SDQ_COUNT RDQ_COUNT COUNT\n";
-
- seq_printf(file, hdr);
- for (i = 0; i < mlxsw_pci_cq_count(mlxsw_pci); i++) {
- q = mlxsw_pci_cq_get(mlxsw_pci, i);
- spin_lock_bh(&q->lock);
- seq_printf(file, "%3d %10d %10d %10d %5d\n",
- i, q->consumer_counter, q->u.cq.comp_sdq_count,
- q->u.cq.comp_rdq_count, q->count);
- spin_unlock_bh(&q->lock);
- }
- return 0;
-}
-
static void mlxsw_pci_cqe_sdq_handle(struct mlxsw_pci *mlxsw_pci,
struct mlxsw_pci_queue *q,
u16 consumer_counter_limit,
mlxsw_cmd_hw2sw_eq(mlxsw_pci->core, q->num);
}
-static int mlxsw_pci_eq_dbg_read(struct seq_file *file, void *data)
-{
- struct mlxsw_pci *mlxsw_pci = dev_get_drvdata(file->private);
- struct mlxsw_pci_queue *q;
- int i;
- static const char hdr[] =
- "NUM CONS_COUNT EV_CMD EV_COMP EV_OTHER COUNT\n";
-
- seq_printf(file, hdr);
- for (i = 0; i < mlxsw_pci_eq_count(mlxsw_pci); i++) {
- q = mlxsw_pci_eq_get(mlxsw_pci, i);
- spin_lock_bh(&q->lock);
- seq_printf(file, "%3d %10d %10d %10d %10d %5d\n",
- i, q->consumer_counter, q->u.eq.ev_cmd_count,
- q->u.eq.ev_comp_count, q->u.eq.ev_other_count,
- q->count);
- spin_unlock_bh(&q->lock);
- }
- return 0;
-}
-
static void mlxsw_pci_eq_cmd_event(struct mlxsw_pci *mlxsw_pci, char *eqe)
{
mlxsw_pci->cmd.comp.status = mlxsw_pci_eqe_cmd_status_get(eqe);
void (*fini)(struct mlxsw_pci *mlxsw_pci,
struct mlxsw_pci_queue *q);
void (*tasklet)(unsigned long data);
- int (*dbg_read)(struct seq_file *s, void *data);
u16 elem_count;
u8 elem_size;
};
.type = MLXSW_PCI_QUEUE_TYPE_SDQ,
.init = mlxsw_pci_sdq_init,
.fini = mlxsw_pci_sdq_fini,
- .dbg_read = mlxsw_pci_sdq_dbg_read,
.elem_count = MLXSW_PCI_WQE_COUNT,
.elem_size = MLXSW_PCI_WQE_SIZE,
};
.type = MLXSW_PCI_QUEUE_TYPE_RDQ,
.init = mlxsw_pci_rdq_init,
.fini = mlxsw_pci_rdq_fini,
- .dbg_read = mlxsw_pci_rdq_dbg_read,
.elem_count = MLXSW_PCI_WQE_COUNT,
.elem_size = MLXSW_PCI_WQE_SIZE
};
.init = mlxsw_pci_cq_init,
.fini = mlxsw_pci_cq_fini,
.tasklet = mlxsw_pci_cq_tasklet,
- .dbg_read = mlxsw_pci_cq_dbg_read,
.elem_count = MLXSW_PCI_CQE_COUNT,
.elem_size = MLXSW_PCI_CQE_SIZE
};
.init = mlxsw_pci_eq_init,
.fini = mlxsw_pci_eq_fini,
.tasklet = mlxsw_pci_eq_tasklet,
- .dbg_read = mlxsw_pci_eq_dbg_read,
.elem_count = MLXSW_PCI_EQE_COUNT,
.elem_size = MLXSW_PCI_EQE_SIZE
};
const struct mlxsw_pci_queue_ops *q_ops,
u8 num_qs)
{
- struct pci_dev *pdev = mlxsw_pci->pdev;
struct mlxsw_pci_queue_type_group *queue_group;
- char tmp[16];
int i;
int err;
}
queue_group->count = num_qs;
- sprintf(tmp, "%s_stats", mlxsw_pci_queue_type_str(q_ops->type));
- debugfs_create_devm_seqfile(&pdev->dev, tmp, mlxsw_pci->dbg_dir,
- q_ops->dbg_read);
-
return 0;
err_queue_init:
mlxsw_pci->bus_info.device_name = pci_name(mlxsw_pci->pdev);
mlxsw_pci->bus_info.dev = &pdev->dev;
- mlxsw_pci->dbg_dir = debugfs_create_dir(mlxsw_pci->bus_info.device_name,
- mlxsw_pci_dbg_root);
- if (!mlxsw_pci->dbg_dir) {
- dev_err(&pdev->dev, "Failed to create debugfs dir\n");
- err = -ENOMEM;
- goto err_dbg_create_dir;
- }
-
err = mlxsw_core_bus_device_register(&mlxsw_pci->bus_info,
&mlxsw_pci_bus, mlxsw_pci);
if (err) {
return 0;
err_bus_device_register:
- debugfs_remove_recursive(mlxsw_pci->dbg_dir);
-err_dbg_create_dir:
pci_disable_msix(mlxsw_pci->pdev);
err_msix_init:
err_sw_reset:
struct mlxsw_pci *mlxsw_pci = pci_get_drvdata(pdev);
mlxsw_core_bus_device_unregister(mlxsw_pci->core);
- debugfs_remove_recursive(mlxsw_pci->dbg_dir);
pci_disable_msix(mlxsw_pci->pdev);
iounmap(mlxsw_pci->hw_addr);
pci_release_regions(mlxsw_pci->pdev);
static int __init mlxsw_pci_module_init(void)
{
- mlxsw_pci_dbg_root = debugfs_create_dir(mlxsw_pci_driver_name, NULL);
- if (!mlxsw_pci_dbg_root)
- return -ENOMEM;
return 0;
}
static void __exit mlxsw_pci_module_exit(void)
{
- debugfs_remove_recursive(mlxsw_pci_dbg_root);
}
module_init(mlxsw_pci_module_init);
projects / platform / kernel / linux-rpi.git / commitdiff