VPP-254 Coding standard cleanup - vnet/vnet/hdlc

Change-Id: I125b1ca20a5b30d199d4a79ad0034533818a5e9c
Signed-off-by: Swarup Nayak <swarupnpvt@gmail.com>
This commit is contained in:
Swarup Nayak
2017-11-22 16:41:57 +05:30
committed by Chris Luke
parent eb2945cf6f
commit cc42db82f8
5 changed files with 197 additions and 126 deletions

View File

@ -43,7 +43,8 @@
/* Global main structure. */ /* Global main structure. */
hdlc_main_t hdlc_main; hdlc_main_t hdlc_main;
u8 * format_hdlc_protocol (u8 * s, va_list * args) u8 *
format_hdlc_protocol (u8 * s, va_list * args)
{ {
hdlc_protocol_t p = va_arg (*args, u32); hdlc_protocol_t p = va_arg (*args, u32);
hdlc_main_t *pm = &hdlc_main; hdlc_main_t *pm = &hdlc_main;
@ -57,7 +58,8 @@ u8 * format_hdlc_protocol (u8 * s, va_list * args)
return s; return s;
} }
u8 * format_hdlc_header_with_length (u8 * s, va_list * args) u8 *
format_hdlc_header_with_length (u8 * s, va_list * args)
{ {
hdlc_main_t *pm = &hdlc_main; hdlc_main_t *pm = &hdlc_main;
hdlc_header_t *h = va_arg (*args, hdlc_header_t *); hdlc_header_t *h = va_arg (*args, hdlc_header_t *);
@ -92,7 +94,8 @@ u8 * format_hdlc_header_with_length (u8 * s, va_list * args)
return s; return s;
} }
u8 * format_hdlc_header (u8 * s, va_list * args) u8 *
format_hdlc_header (u8 * s, va_list * args)
{ {
hdlc_header_t *h = va_arg (*args, hdlc_header_t *); hdlc_header_t *h = va_arg (*args, hdlc_header_t *);
return format (s, "%U", format_hdlc_header_with_length, h, 0); return format (s, "%U", format_hdlc_header_with_length, h, 0);
@ -108,8 +111,7 @@ unformat_hdlc_protocol_host_byte_order (unformat_input_t * input,
int p, i; int p, i;
/* Numeric type. */ /* Numeric type. */
if (unformat (input, "0x%x", &p) if (unformat (input, "0x%x", &p) || unformat (input, "%d", &p))
|| unformat (input, "%d", &p))
{ {
if (p >= (1 << 16)) if (p >= (1 << 16))
return 0; return 0;
@ -147,8 +149,7 @@ unformat_hdlc_header (unformat_input_t * input, va_list * args)
hdlc_header_t _h, *h = &_h; hdlc_header_t _h, *h = &_h;
u16 p; u16 p;
if (! unformat (input, "%U", if (!unformat (input, "%U", unformat_hdlc_protocol_host_byte_order, &p))
unformat_hdlc_protocol_host_byte_order, &p))
return 0; return 0;
h->address = 0xff; h->address = 0xff;
@ -170,14 +171,14 @@ unformat_hdlc_header (unformat_input_t * input, va_list * args)
static u8 * static u8 *
hdlc_build_rewrite (vnet_main_t * vnm, hdlc_build_rewrite (vnet_main_t * vnm,
u32 sw_if_index, u32 sw_if_index,
vnet_link_t link_type, vnet_link_t link_type, const void *dst_address)
const void *dst_address)
{ {
hdlc_header_t *h; hdlc_header_t *h;
u8 *rewrite = NULL; u8 *rewrite = NULL;
hdlc_protocol_t protocol; hdlc_protocol_t protocol;
switch (link_type) { switch (link_type)
{
#define _(a,b) case VNET_LINK_##a: protocol = HDLC_PROTOCOL_##b; break #define _(a,b) case VNET_LINK_##a: protocol = HDLC_PROTOCOL_##b; break
_(IP4, ip4); _(IP4, ip4);
_(IP6, ip6); _(IP6, ip6);
@ -196,6 +197,7 @@ hdlc_build_rewrite (vnet_main_t * vnm,
return (rewrite); return (rewrite);
} }
/* *INDENT-OFF* */
VNET_HW_INTERFACE_CLASS (hdlc_hw_interface_class) = { VNET_HW_INTERFACE_CLASS (hdlc_hw_interface_class) = {
.name = "HDLC", .name = "HDLC",
.format_header = format_hdlc_header_with_length, .format_header = format_hdlc_header_with_length,
@ -203,10 +205,10 @@ VNET_HW_INTERFACE_CLASS (hdlc_hw_interface_class) = {
.build_rewrite = hdlc_build_rewrite, .build_rewrite = hdlc_build_rewrite,
.flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P, .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
}; };
/* *INDENT-ON* */
static void add_protocol (hdlc_main_t * pm, static void
hdlc_protocol_t protocol, add_protocol (hdlc_main_t * pm, hdlc_protocol_t protocol, char *protocol_name)
char * protocol_name)
{ {
hdlc_protocol_info_t *pi; hdlc_protocol_info_t *pi;
u32 i; u32 i;
@ -222,7 +224,8 @@ static void add_protocol (hdlc_main_t * pm,
hash_set_mem (pm->protocol_info_by_name, pi->name, i); hash_set_mem (pm->protocol_info_by_name, pi->name, i);
} }
static clib_error_t * hdlc_init (vlib_main_t * vm) static clib_error_t *
hdlc_init (vlib_main_t * vm)
{ {
hdlc_main_t *pm = &hdlc_main; hdlc_main_t *pm = &hdlc_main;
@ -235,15 +238,23 @@ static clib_error_t * hdlc_init (vlib_main_t * vm)
#define _(n,s) add_protocol (pm, HDLC_PROTOCOL_##s, #s); #define _(n,s) add_protocol (pm, HDLC_PROTOCOL_##s, #s);
foreach_hdlc_protocol foreach_hdlc_protocol
#undef _ #undef _
return vlib_call_init_function (vm, hdlc_input_init); return vlib_call_init_function (vm, hdlc_input_init);
} }
VLIB_INIT_FUNCTION (hdlc_init); VLIB_INIT_FUNCTION (hdlc_init);
hdlc_main_t * hdlc_get_main (vlib_main_t * vm) hdlc_main_t *
hdlc_get_main (vlib_main_t * vm)
{ {
vlib_call_init_function (vm, hdlc_init); vlib_call_init_function (vm, hdlc_init);
return &hdlc_main; return &hdlc_main;
} }
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/

View File

@ -46,14 +46,16 @@
extern vnet_hw_interface_class_t hdlc_hw_interface_class; extern vnet_hw_interface_class_t hdlc_hw_interface_class;
typedef enum { typedef enum
{
#define hdlc_error(n,s) HDLC_ERROR_##n, #define hdlc_error(n,s) HDLC_ERROR_##n,
#include <vnet/hdlc/error.def> #include <vnet/hdlc/error.def>
#undef hdlc_error #undef hdlc_error
HDLC_N_ERROR, HDLC_N_ERROR,
} hdlc_error_t; } hdlc_error_t;
typedef struct { typedef struct
{
/* Name (a c string). */ /* Name (a c string). */
char *name; char *name;
@ -67,7 +69,8 @@ typedef struct {
u32 next_index; u32 next_index;
} hdlc_protocol_info_t; } hdlc_protocol_info_t;
typedef struct { typedef struct
{
vlib_main_t *vlib_main; vlib_main_t *vlib_main;
hdlc_protocol_info_t *protocol_infos; hdlc_protocol_info_t *protocol_infos;
@ -88,8 +91,7 @@ extern hdlc_main_t hdlc_main;
/* Register given node index to take input for given hdlc type. */ /* Register given node index to take input for given hdlc type. */
void void
hdlc_register_input_type (vlib_main_t * vm, hdlc_register_input_type (vlib_main_t * vm,
hdlc_protocol_t protocol, hdlc_protocol_t protocol, u32 node_index);
u32 node_index);
format_function_t format_hdlc_protocol; format_function_t format_hdlc_protocol;
format_function_t format_hdlc_header; format_function_t format_hdlc_header;
@ -117,7 +119,14 @@ hdlc_setup_node (vlib_main_t * vm, u32 node_index)
void void
hdlc_register_input_protocol (vlib_main_t * vm, hdlc_register_input_protocol (vlib_main_t * vm,
hdlc_protocol_t protocol, hdlc_protocol_t protocol, u32 node_index);
u32 node_index);
#endif /* included_hdlc_h */ #endif /* included_hdlc_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/

View File

@ -46,18 +46,21 @@
_ (PUNT, "error-punt") \ _ (PUNT, "error-punt") \
_ (DROP, "error-drop") _ (DROP, "error-drop")
typedef enum { typedef enum
{
#define _(s,n) HDLC_INPUT_NEXT_##s, #define _(s,n) HDLC_INPUT_NEXT_##s,
foreach_hdlc_input_next foreach_hdlc_input_next
#undef _ #undef _
HDLC_INPUT_N_NEXT, HDLC_INPUT_N_NEXT,
} hdlc_input_next_t; } hdlc_input_next_t;
typedef struct { typedef struct
{
u8 packet_data[32]; u8 packet_data[32];
} hdlc_input_trace_t; } hdlc_input_trace_t;
static u8 * format_hdlc_input_trace (u8 * s, va_list * va) static u8 *
format_hdlc_input_trace (u8 * s, va_list * va)
{ {
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
@ -68,7 +71,8 @@ static u8 * format_hdlc_input_trace (u8 * s, va_list * va)
return s; return s;
} }
typedef struct { typedef struct
{
/* Sparse vector mapping hdlc protocol in network byte order /* Sparse vector mapping hdlc protocol in network byte order
to next index. */ to next index. */
u16 *next_by_protocol; u16 *next_by_protocol;
@ -78,8 +82,7 @@ typedef struct {
static uword static uword
hdlc_input (vlib_main_t * vm, hdlc_input (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_node_runtime_t * node, vlib_frame_t * from_frame)
vlib_frame_t * from_frame)
{ {
hdlc_input_runtime_t *rt = (void *) node->runtime_data; hdlc_input_runtime_t *rt = (void *) node->runtime_data;
u32 n_left_from, next_index, i_next, *from, *to_next; u32 n_left_from, next_index, i_next, *from, *to_next;
@ -101,8 +104,7 @@ hdlc_input (vlib_main_t * vm,
{ {
u32 n_left_to_next; u32 n_left_to_next;
vlib_get_next_frame (vm, node, next_index, vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
to_next, n_left_to_next);
while (n_left_from >= 4 && n_left_to_next >= 2) while (n_left_from >= 4 && n_left_to_next >= 2)
{ {
@ -157,10 +159,17 @@ hdlc_input (vlib_main_t * vm,
b1->current_length -= len1; b1->current_length -= len1;
/* Index sparse array with network byte order. */ /* Index sparse array with network byte order. */
sparse_vec_index2 (rt->next_by_protocol, protocol0, protocol1, &i0, &i1); sparse_vec_index2 (rt->next_by_protocol, protocol0, protocol1, &i0,
&i1);
b0->error = node->errors[i0 == SPARSE_VEC_INVALID_INDEX ? HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE]; b0->error =
b1->error = node->errors[i1 == SPARSE_VEC_INVALID_INDEX ? HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE]; node->errors[i0 ==
SPARSE_VEC_INVALID_INDEX ?
HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
b1->error =
node->errors[i1 ==
SPARSE_VEC_INVALID_INDEX ?
HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
enqueue_code = (i0 != i_next) + 2 * (i1 != i_next); enqueue_code = (i0 != i_next) + 2 * (i1 != i_next);
@ -173,29 +182,38 @@ hdlc_input (vlib_main_t * vm,
to_next[-2] = bi1; to_next[-2] = bi1;
to_next -= 1; to_next -= 1;
n_left_to_next += 1; n_left_to_next += 1;
vlib_set_next_frame_buffer (vm, node, vec_elt (rt->next_by_protocol, i0), bi0); vlib_set_next_frame_buffer (vm, node,
vec_elt (rt->next_by_protocol,
i0), bi0);
break; break;
case 2: case 2:
/* A A B */ /* A A B */
to_next -= 1; to_next -= 1;
n_left_to_next += 1; n_left_to_next += 1;
vlib_set_next_frame_buffer (vm, node, vec_elt (rt->next_by_protocol, i1), bi1); vlib_set_next_frame_buffer (vm, node,
vec_elt (rt->next_by_protocol,
i1), bi1);
break; break;
case 3: case 3:
/* A B B or A B C */ /* A B B or A B C */
to_next -= 2; to_next -= 2;
n_left_to_next += 2; n_left_to_next += 2;
vlib_set_next_frame_buffer (vm, node, vec_elt (rt->next_by_protocol, i0), bi0); vlib_set_next_frame_buffer (vm, node,
vlib_set_next_frame_buffer (vm, node, vec_elt (rt->next_by_protocol, i1), bi1); vec_elt (rt->next_by_protocol,
i0), bi0);
vlib_set_next_frame_buffer (vm, node,
vec_elt (rt->next_by_protocol,
i1), bi1);
if (i0 == i1) if (i0 == i1)
{ {
vlib_put_next_frame (vm, node, next_index, vlib_put_next_frame (vm, node, next_index,
n_left_to_next); n_left_to_next);
i_next = i1; i_next = i1;
next_index = vec_elt (rt->next_by_protocol, i_next); next_index = vec_elt (rt->next_by_protocol, i_next);
vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); vlib_get_next_frame (vm, node, next_index, to_next,
n_left_to_next);
} }
} }
} }
@ -230,7 +248,10 @@ hdlc_input (vlib_main_t * vm,
i0 = sparse_vec_index (rt->next_by_protocol, protocol0); i0 = sparse_vec_index (rt->next_by_protocol, protocol0);
b0->error = node->errors[i0 == SPARSE_VEC_INVALID_INDEX ? HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE]; b0->error =
node->errors[i0 ==
SPARSE_VEC_INVALID_INDEX ?
HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
/* Sent packet to wrong next? */ /* Sent packet to wrong next? */
if (PREDICT_FALSE (i0 != i_next)) if (PREDICT_FALSE (i0 != i_next))
@ -262,6 +283,7 @@ static char * hdlc_error_strings[] = {
#undef hdlc_error #undef hdlc_error
}; };
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (hdlc_input_node) = { VLIB_REGISTER_NODE (hdlc_input_node) = {
.function = hdlc_input, .function = hdlc_input,
.name = "hdlc-input", .name = "hdlc-input",
@ -284,8 +306,10 @@ VLIB_REGISTER_NODE (hdlc_input_node) = {
.format_trace = format_hdlc_input_trace, .format_trace = format_hdlc_input_trace,
.unformat_buffer = unformat_hdlc_header, .unformat_buffer = unformat_hdlc_header,
}; };
/* *INDENT-ON* */
static clib_error_t * hdlc_input_runtime_init (vlib_main_t * vm) static clib_error_t *
hdlc_input_runtime_init (vlib_main_t * vm)
{ {
hdlc_input_runtime_t *rt; hdlc_input_runtime_t *rt;
rt = vlib_node_get_runtime_data (vm, hdlc_input_node.index); rt = vlib_node_get_runtime_data (vm, hdlc_input_node.index);
@ -304,7 +328,8 @@ static clib_error_t * hdlc_input_runtime_init (vlib_main_t * vm)
return 0; return 0;
} }
static clib_error_t * hdlc_input_init (vlib_main_t * vm) static clib_error_t *
hdlc_input_init (vlib_main_t * vm)
{ {
{ {
@ -324,8 +349,7 @@ VLIB_WORKER_INIT_FUNCTION (hdlc_input_runtime_init);
void void
hdlc_register_input_protocol (vlib_main_t * vm, hdlc_register_input_protocol (vlib_main_t * vm,
hdlc_protocol_t protocol, hdlc_protocol_t protocol, u32 node_index)
u32 node_index)
{ {
hdlc_main_t *em = &hdlc_main; hdlc_main_t *em = &hdlc_main;
hdlc_protocol_info_t *pi; hdlc_protocol_info_t *pi;
@ -341,13 +365,13 @@ hdlc_register_input_protocol (vlib_main_t * vm,
pi = hdlc_get_protocol_info (em, protocol); pi = hdlc_get_protocol_info (em, protocol);
pi->node_index = node_index; pi->node_index = node_index;
pi->next_index = vlib_node_add_next (vm, pi->next_index = vlib_node_add_next (vm, hdlc_input_node.index, node_index);
hdlc_input_node.index,
node_index);
/* Setup hdlc protocol -> next index sparse vector mapping. */ /* Setup hdlc protocol -> next index sparse vector mapping. */
rt = vlib_node_get_runtime_data (vm, hdlc_input_node.index); rt = vlib_node_get_runtime_data (vm, hdlc_input_node.index);
n = sparse_vec_validate (rt->next_by_protocol, clib_host_to_net_u16 (protocol)); n =
sparse_vec_validate (rt->next_by_protocol,
clib_host_to_net_u16 (protocol));
n[0] = pi->next_index; n[0] = pi->next_index;
/* Rebuild next index -> sparse index inverse mapping when sparse vector /* Rebuild next index -> sparse index inverse mapping when sparse vector
@ -356,3 +380,11 @@ hdlc_register_input_protocol (vlib_main_t * vm,
for (i = 1; i < vec_len (rt->next_by_protocol); i++) for (i = 1; i < vec_len (rt->next_by_protocol); i++)
rt->sparse_index_by_next_index[rt->next_by_protocol[i]] = i; rt->sparse_index_by_next_index[rt->next_by_protocol[i]] = i;
} }
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/

View File

@ -49,13 +49,15 @@
_ (0x86dd, ip6) \ _ (0x86dd, ip6) \
_ (0xfefe, osi) _ (0xfefe, osi)
typedef enum { typedef enum
{
#define _(n,f) HDLC_PROTOCOL_##f = n, #define _(n,f) HDLC_PROTOCOL_##f = n,
foreach_hdlc_protocol foreach_hdlc_protocol
#undef _ #undef _
} hdlc_protocol_t; } hdlc_protocol_t;
typedef struct { typedef struct
{
/* Set to 0x0f for unicast; 0x8f for broadcast. */ /* Set to 0x0f for unicast; 0x8f for broadcast. */
u8 address; u8 address;
@ -70,3 +72,11 @@ typedef struct {
} hdlc_header_t; } hdlc_header_t;
#endif /* included_vnet_hdlc_packet_h */ #endif /* included_vnet_hdlc_packet_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/

View File

@ -41,7 +41,8 @@
#include <vnet/pg/pg.h> #include <vnet/pg/pg.h>
#include <vnet/hdlc/hdlc.h> #include <vnet/hdlc/hdlc.h>
typedef struct { typedef struct
{
pg_edit_t address; pg_edit_t address;
pg_edit_t control; pg_edit_t control;
pg_edit_t protocol; pg_edit_t protocol;
@ -103,3 +104,11 @@ unformat_pg_hdlc_header (unformat_input_t * input, va_list * args)
return error == 0; return error == 0;
} }
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/