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Add more LinuxKPI PCI related functions and defines.

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Removed comments deriving from Linux.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2016-01-26 14:20:25 +00:00
parent 390566702b
commit a65ef21558
1 changed files with 51 additions and 56 deletions
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107
sys/compat/linuxkpi/common/include/linux/pci.h
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@ -114,14 +114,29 @@ struct pci_device_id {
#define PCI_EXP_TYPE_DOWNSTREAM PCIEM_TYPE_DOWNSTREAM_PORT /* Downstream Port */
#define PCI_EXP_FLAGS_SLOT PCIEM_FLAGS_SLOT /* Slot implemented */
#define PCI_EXP_TYPE_RC_EC PCIEM_TYPE_ROOT_EC /* Root Complex Event Collector */
#define PCI_EXP_LNKCAP_SLS_2_5GB 0x01 /* Supported Link Speed 2.5GT/s */
#define PCI_EXP_LNKCAP_SLS_5_0GB 0x02 /* Supported Link Speed 5.0GT/s */
#define PCI_EXP_LNKCAP_MLW 0x03f0 /* Maximum Link Width */
#define PCI_EXP_LNKCAP2_SLS_2_5GB 0x02 /* Supported Link Speed 2.5GT/s */
#define PCI_EXP_LNKCAP2_SLS_5_0GB 0x04 /* Supported Link Speed 5.0GT/s */
#define PCI_EXP_LNKCAP2_SLS_8_0GB 0x08 /* Supported Link Speed 8.0GT/s */
#define IORESOURCE_MEM SYS_RES_MEMORY
#define IORESOURCE_IO SYS_RES_IOPORT
#define IORESOURCE_IRQ SYS_RES_IRQ
struct pci_dev;
enum pci_bus_speed {
PCI_SPEED_UNKNOWN = -1,
PCIE_SPEED_2_5GT,
PCIE_SPEED_5_0GT,
PCIE_SPEED_8_0GT,
};
enum pcie_link_width {
PCIE_LNK_WIDTH_UNKNOWN = -1,
};
struct pci_dev;
struct pci_driver {
struct list_head links;
@ -351,20 +366,6 @@ pci_find_capability(struct pci_dev *pdev, int capid)
return (reg);
}
/**
* pci_pcie_cap - get the saved PCIe capability offset
* @dev: PCI device
*
* PCIe capability offset is calculated at PCI device initialization
* time and saved in the data structure. This function returns saved
* PCIe capability offset. Using this instead of pci_find_capability()
* reduces unnecessary search in the PCI configuration space. If you
* need to calculate PCIe capability offset from raw device for some
* reasons, please use pci_find_capability() instead.
*/
static inline int pci_pcie_cap(struct pci_dev *dev)
{
return pci_find_capability(dev, PCI_CAP_ID_EXP);
@ -505,13 +506,6 @@ static inline void pci_disable_sriov(struct pci_dev *dev)
{
}
/**
* DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table
* @_table: device table name
*
* This macro is used to create a struct pci_device_id array (a device table)
* in a generic manner.
*/
#define DEFINE_PCI_DEVICE_TABLE(_table) \
const struct pci_device_id _table[] __devinitdata
@ -569,54 +563,31 @@ typedef unsigned int __bitwise pci_channel_state_t;
typedef unsigned int __bitwise pci_ers_result_t;
enum pci_channel_state {
/* I/O channel is in normal state */
pci_channel_io_normal = (__force pci_channel_state_t) 1,
/* I/O to channel is blocked */
pci_channel_io_frozen = (__force pci_channel_state_t) 2,
/* PCI card is dead */
pci_channel_io_perm_failure = (__force pci_channel_state_t) 3,
pci_channel_io_normal = 1,
pci_channel_io_frozen = 2,
pci_channel_io_perm_failure = 3,
};
enum pci_ers_result {
/* no result/none/not supported in device driver */
PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1,
/* Device driver can recover without slot reset */
PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2,
/* Device driver wants slot to be reset. */
PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3,
/* Device has completely failed, is unrecoverable */
PCI_ERS_RESULT_DISCONNECT = (__force pci_ers_result_t) 4,
/* Device driver is fully recovered and operational */
PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5,
PCI_ERS_RESULT_NONE = 1,
PCI_ERS_RESULT_CAN_RECOVER = 2,
PCI_ERS_RESULT_NEED_RESET = 3,
PCI_ERS_RESULT_DISCONNECT = 4,
PCI_ERS_RESULT_RECOVERED = 5,
};
/* PCI bus error event callbacks */
struct pci_error_handlers {
/* PCI bus error detected on this device */
pci_ers_result_t (*error_detected)(struct pci_dev *dev,
enum pci_channel_state error);
/* MMIO has been re-enabled, but not DMA */
pci_ers_result_t (*mmio_enabled)(struct pci_dev *dev);
/* PCI Express link has been reset */
pci_ers_result_t (*link_reset)(struct pci_dev *dev);
/* PCI slot has been reset */
pci_ers_result_t (*slot_reset)(struct pci_dev *dev);
/* Device driver may resume normal operations */
void (*resume)(struct pci_dev *dev);
};
/* freeBSD does not support SRIOV - yet */
/* FreeBSD does not support SRIOV - yet */
static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
{
return dev;
@ -721,7 +692,17 @@ static bool pcie_capability_reg_implemented(struct pci_dev *dev, int pos)
}
}
static inline int pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *dst)
{
if (pos & 3)
return -EINVAL;
if (!pcie_capability_reg_implemented(dev, pos))
return -EINVAL;
return pci_read_config_dword(dev, pci_pcie_cap(dev) + pos, dst);
}
static inline int pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val)
{
if (pos & 1)
@ -733,4 +714,18 @@ static inline int pcie_capability_write_word(struct pci_dev *dev, int pos, u16 v
return pci_write_config_word(dev, pci_pcie_cap(dev) + pos, val);
}
static inline int pcie_get_minimum_link(struct pci_dev *dev,
enum pci_bus_speed *speed, enum pcie_link_width *width)
{
*speed = PCI_SPEED_UNKNOWN;
*width = PCIE_LNK_WIDTH_UNKNOWN;
return (0);
}
static inline int
pci_num_vf(struct pci_dev *dev)
{
return (0);
}
#endif /* _LINUX_PCI_H_ */