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authorDamjan Marion <damarion@cisco.com>2017-10-05 15:32:41 +0200
committerDave Barach <openvpp@barachs.net>2017-12-09 14:10:17 +0000
commitcef87f1a5eb4d69cf11ce1cd3c5506edcfba74c4 (patch)
treebc9ee3eb220f9c8a1fb416a45768a99b2f5be53b /src/vlib/pci/pci.h
parent34719e37bf820e8398ca9159725f7f4c42764aeb (diff)
vlib: PCI rework to support VFIO
Also fixes old ixge driver, so it works with recent physmem changes and vfio. Change-Id: Id4be74b34daed47cd281a77eec43d6692340d882 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/pci/pci.h')
-rw-r--r--src/vlib/pci/pci.h125
1 files changed, 71 insertions, 54 deletions
diff --git a/src/vlib/pci/pci.h b/src/vlib/pci/pci.h
index 2141080936d..e1bc4172e8b 100644
--- a/src/vlib/pci/pci.h
+++ b/src/vlib/pci/pci.h
@@ -43,33 +43,24 @@
#include <vlib/vlib.h>
#include <vlib/pci/pci_config.h>
+/* *INDENT-OFF* */
typedef CLIB_PACKED (union
- {
- struct
- {
-u16 domain; u8 bus; u8 slot: 5; u8 function:3;};
- u32 as_u32;}) vlib_pci_addr_t;
-
-typedef struct vlib_pci_device
{
- /* Operating system handle for this device. */
- uword os_handle;
-
- vlib_pci_addr_t bus_address;
-
- /* First 64 bytes of configuration space. */
- union
- {
- pci_config_type0_regs_t config0;
- pci_config_type1_regs_t config1;
- u8 config_data[256];
- };
-
- /* Interrupt handler */
- void (*interrupt_handler) (struct vlib_pci_device * dev);
-
- /* Driver name */
- u8 *driver_name;
+ struct
+ {
+ u16 domain;
+ u8 bus;
+ u8 slot: 5;
+ u8 function:3;
+ };
+ u32 as_u32;
+}) vlib_pci_addr_t;
+/* *INDENT-ON* */
+
+typedef struct vlib_pci_device_info
+{
+ /* addr */
+ vlib_pci_addr_t addr;
/* Numa Node */
int numa_node;
@@ -84,10 +75,42 @@ typedef struct vlib_pci_device
u8 *vpd_r;
u8 *vpd_w;
- /* Private data */
- uword private_data;
+ /* Driver name */
+ u8 *driver_name;
+
+ /* First 64 bytes of configuration space. */
+ union
+ {
+ pci_config_type0_regs_t config0;
+ pci_config_type1_regs_t config1;
+ u8 config_data[256];
+ };
+
+ /* IOMMU Group */
+ int iommu_group;
+
+} vlib_pci_device_info_t;
+
+typedef u32 vlib_pci_dev_handle_t;
-} vlib_pci_device_t;
+vlib_pci_device_info_t *vlib_pci_get_device_info (vlib_pci_addr_t * addr,
+ clib_error_t ** error);
+vlib_pci_addr_t *vlib_pci_get_all_dev_addrs ();
+vlib_pci_addr_t *vlib_pci_get_addr (vlib_pci_dev_handle_t h);
+uword vlib_pci_get_private_data (vlib_pci_dev_handle_t h);
+void vlib_pci_set_private_data (vlib_pci_dev_handle_t h, uword private_data);
+
+static inline void
+vlib_pci_free_device_info (vlib_pci_device_info_t * di)
+{
+ if (!di)
+ return;
+ vec_free (di->product_name);
+ vec_free (di->vpd_r);
+ vec_free (di->vpd_w);
+ vec_free (di->driver_name);
+ clib_mem_free (di);
+}
typedef struct
{
@@ -97,10 +120,11 @@ typedef struct
typedef struct _pci_device_registration
{
/* Driver init function. */
- clib_error_t *(*init_function) (vlib_main_t * vm, vlib_pci_device_t * dev);
+ clib_error_t *(*init_function) (vlib_main_t * vm,
+ vlib_pci_dev_handle_t handle);
/* Interrupt handler */
- void (*interrupt_handler) (vlib_pci_device_t * dev);
+ void (*interrupt_handler) (vlib_pci_dev_handle_t handle);
/* List of registrations */
struct _pci_device_registration *next_registration;
@@ -113,9 +137,7 @@ typedef struct _pci_device_registration
typedef struct
{
vlib_main_t *vlib_main;
- vlib_pci_device_t *pci_devs;
pci_device_registration_t *pci_device_registrations;
- uword *pci_dev_index_by_pci_addr;
} vlib_pci_main_t;
extern vlib_pci_main_t pci_main;
@@ -132,21 +154,21 @@ static void __vlib_add_pci_device_registration_##x (void) \
} \
__VA_ARGS__ pci_device_registration_t x
-clib_error_t *vlib_pci_bind_to_uio (vlib_pci_device_t * d,
+clib_error_t *vlib_pci_bind_to_uio (vlib_pci_addr_t * addr,
char *uio_driver_name);
/* Configuration space read/write. */
-clib_error_t *vlib_pci_read_write_config (vlib_pci_device_t * dev,
+clib_error_t *vlib_pci_read_write_config (vlib_pci_dev_handle_t handle,
vlib_read_or_write_t read_or_write,
uword address,
void *data, u32 n_bytes);
#define _(t) \
static inline clib_error_t * \
-vlib_pci_read_config_##t (vlib_pci_device_t * dev, \
+vlib_pci_read_config_##t (vlib_pci_dev_handle_t h, \
uword address, t * data) \
{ \
- return vlib_pci_read_write_config (dev, VLIB_READ,address, data, \
+ return vlib_pci_read_write_config (h, VLIB_READ,address, data, \
sizeof (data[0])); \
}
@@ -158,10 +180,10 @@ _(u8);
#define _(t) \
static inline clib_error_t * \
-vlib_pci_write_config_##t (vlib_pci_device_t * dev, uword address, \
+vlib_pci_write_config_##t (vlib_pci_dev_handle_t h, uword address, \
t * data) \
{ \
- return vlib_pci_read_write_config (dev, VLIB_WRITE, \
+ return vlib_pci_read_write_config (h, VLIB_WRITE, \
address, data, sizeof (data[0])); \
}
@@ -172,45 +194,45 @@ _(u8);
#undef _
static inline clib_error_t *
-vlib_pci_intr_enable (vlib_pci_device_t * dev)
+vlib_pci_intr_enable (vlib_pci_dev_handle_t h)
{
u16 command;
clib_error_t *err;
- err = vlib_pci_read_config_u16 (dev, 4, &command);
+ err = vlib_pci_read_config_u16 (h, 4, &command);
if (err)
return err;
command &= ~PCI_COMMAND_INTX_DISABLE;
- return vlib_pci_write_config_u16 (dev, 4, &command);
+ return vlib_pci_write_config_u16 (h, 4, &command);
}
static inline clib_error_t *
-vlib_pci_intr_disable (vlib_pci_device_t * dev)
+vlib_pci_intr_disable (vlib_pci_dev_handle_t h)
{
u16 command;
clib_error_t *err;
- err = vlib_pci_read_config_u16 (dev, 4, &command);
+ err = vlib_pci_read_config_u16 (h, 4, &command);
if (err)
return err;
command |= PCI_COMMAND_INTX_DISABLE;
- return vlib_pci_write_config_u16 (dev, 4, &command);
+ return vlib_pci_write_config_u16 (h, 4, &command);
}
static inline clib_error_t *
-vlib_pci_bus_master_enable (vlib_pci_device_t * dev)
+vlib_pci_bus_master_enable (vlib_pci_dev_handle_t h)
{
clib_error_t *err;
u16 command;
/* Set bus master enable (BME) */
- err = vlib_pci_read_config_u16 (dev, 4, &command);
+ err = vlib_pci_read_config_u16 (h, 4, &command);
if (err)
return err;
@@ -220,23 +242,18 @@ vlib_pci_bus_master_enable (vlib_pci_device_t * dev)
command |= PCI_COMMAND_BUS_MASTER;
- return vlib_pci_write_config_u16 (dev, 4, &command);
+ return vlib_pci_write_config_u16 (h, 4, &command);
}
-clib_error_t *vlib_pci_map_resource (vlib_pci_device_t * dev, u32 resource,
+clib_error_t *vlib_pci_map_resource (vlib_pci_dev_handle_t h, u32 resource,
void **result);
-clib_error_t *vlib_pci_map_resource_fixed (vlib_pci_device_t * dev,
+clib_error_t *vlib_pci_map_resource_fixed (vlib_pci_dev_handle_t h,
u32 resource, u8 * addr,
void **result);
-vlib_pci_device_t *vlib_get_pci_device (vlib_pci_addr_t * addr);
-/* Free's device. */
-void vlib_pci_free_device (vlib_pci_device_t * dev);
-
unformat_function_t unformat_vlib_pci_addr;
format_function_t format_vlib_pci_addr;
-format_function_t format_vlib_pci_handle;
format_function_t format_vlib_pci_link_speed;
format_function_t format_vlib_pci_vpd;