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mlx4_core: Reset device when internal error is detected

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Reset the device when an internal error is detected.

Also, detect errors by polling the error buffer rather than using
interrupts.  This is more robust and doesn't depend on MSI-X.  Remove
the old interrupt handler entirely, since we don't want to support two
mechanisms for detecting internal errors.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein
2007-07-12 17:50:45 +03:00
committed by Roland Dreier
parent 41179e2de6
commit ee49bd9397
5 changed files with 130 additions and 73 deletions
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13
drivers/net/mlx4/mlx4.h
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@@ -39,6 +39,7 @@
#include <linux/mutex.h>
#include <linux/radix-tree.h>
#include <linux/timer.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/doorbell.h>
@@ -67,7 +68,6 @@ enum {
enum {
MLX4_EQ_ASYNC,
MLX4_EQ_COMP,
MLX4_EQ_CATAS,
MLX4_NUM_EQ
};
@@ -248,7 +248,8 @@ struct mlx4_mcg_table {
struct mlx4_catas_err {
u32 __iomem *map;
int size;
struct timer_list timer;
struct list_head list;
};
struct mlx4_priv {
@@ -311,9 +312,11 @@ void mlx4_cleanup_qp_table(struct mlx4_dev *dev);
void mlx4_cleanup_srq_table(struct mlx4_dev *dev);
void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
void mlx4_map_catas_buf(struct mlx4_dev *dev);
void mlx4_unmap_catas_buf(struct mlx4_dev *dev);
void mlx4_start_catas_poll(struct mlx4_dev *dev);
void mlx4_stop_catas_poll(struct mlx4_dev *dev);
int mlx4_catas_init(void);
void mlx4_catas_cleanup(void);
int mlx4_restart_one(struct pci_dev *pdev);
int mlx4_register_device(struct mlx4_dev *dev);
void mlx4_unregister_device(struct mlx4_dev *dev);
void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_event type,