i40e: move ethtool stats boiler plate code to i40e_ethtool_stats.h

Move the boiler plate structures and helper functions we recently
added into their own header file, so that the complete collection is
located together.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 1 insertions, 181 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 235012b3bd42..d7d3974beca2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -6,25 +6,8 @@
 #include "i40e.h"
 #include "i40e_diag.h"
 
-struct i40e_stats {
-	/* The stat_string is expected to be a format string formatted using
-	 * vsnprintf by i40e_add_stat_strings. Every member of a stats array
-	 * should use the same format specifiers as they will be formatted
-	 * using the same variadic arguments.
-	 */
-	char stat_string[ETH_GSTRING_LEN];
-	int sizeof_stat;
-	int stat_offset;
-};
-
-#define I40E_STAT(_type, _name, _stat) { \
-	.stat_string = _name, \
-	.sizeof_stat = FIELD_SIZEOF(_type, _stat), \
-	.stat_offset = offsetof(_type, _stat) \
-}
+#include "i40e_ethtool_stats.h"
 
-#define I40E_NETDEV_STAT(_net_stat) \
-	I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
 #define I40E_PF_STAT(_name, _stat) \
 	I40E_STAT(struct i40e_pf, _name, _stat)
 #define I40E_VSI_STAT(_name, _stat) \
@@ -173,11 +156,6 @@ static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
 	I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
 };
 
-static const struct i40e_stats i40e_gstrings_queue_stats[] = {
-	I40E_QUEUE_STAT("%s-%u.packets", stats.packets),
-	I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes),
-};
-
 #define I40E_NETDEV_STATS_LEN	ARRAY_SIZE(i40e_gstrings_net_stats)
 
 #define I40E_MISC_STATS_LEN	ARRAY_SIZE(i40e_gstrings_misc_stats)
@@ -1750,128 +1728,6 @@ static int i40e_get_sset_count(struct net_device *netdev, int sset)
 }
 
 /**
- * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
- * @data: location to store the stat value
- * @pointer: basis for where to copy from
- * @stat: the stat definition
- *
- * Copies the stat data defined by the pointer and stat structure pair into
- * the memory supplied as data. Used to implement i40e_add_ethtool_stats and
- * i40e_add_queue_stats. If the pointer is null, data will be zero'd.
- */
-static inline void
-i40e_add_one_ethtool_stat(u64 *data, void *pointer,
-			  const struct i40e_stats *stat)
-{
-	char *p;
-
-	if (!pointer) {
-		/* ensure that the ethtool data buffer is zero'd for any stats
-		 * which don't have a valid pointer.
-		 */
-		*data = 0;
-		return;
-	}
-
-	p = (char *)pointer + stat->stat_offset;
-	switch (stat->sizeof_stat) {
-	case sizeof(u64):
-		*data = *((u64 *)p);
-		break;
-	case sizeof(u32):
-		*data = *((u32 *)p);
-		break;
-	case sizeof(u16):
-		*data = *((u16 *)p);
-		break;
-	case sizeof(u8):
-		*data = *((u8 *)p);
-		break;
-	default:
-		WARN_ONCE(1, "unexpected stat size for %s",
-			  stat->stat_string);
-		*data = 0;
-	}
-}
-
-/**
- * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
- * @data: ethtool stats buffer
- * @pointer: location to copy stats from
- * @stats: array of stats to copy
- * @size: the size of the stats definition
- *
- * Copy the stats defined by the stats array using the pointer as a base into
- * the data buffer supplied by ethtool. Updates the data pointer to point to
- * the next empty location for successive calls to __i40e_add_ethtool_stats.
- * If pointer is null, set the data values to zero and update the pointer to
- * skip these stats.
- **/
-static inline void
-__i40e_add_ethtool_stats(u64 **data, void *pointer,
-			 const struct i40e_stats stats[],
-			 const unsigned int size)
-{
-	unsigned int i;
-
-	for (i = 0; i < size; i++)
-		i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
-}
-
-/**
- * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
- * @data: ethtool stats buffer
- * @pointer: location where stats are stored
- * @stats: static const array of stat definitions
- *
- * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
- * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
- * ensuring that we pass the size associated with the given stats array.
- * Assumes that stats is an array.
- **/
-#define i40e_add_ethtool_stats(data, pointer, stats) \
-	__i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
-
-/**
- * i40e_add_queue_stats - copy queue statistics into supplied buffer
- * @data: ethtool stats buffer
- * @ring: the ring to copy
- *
- * Queue statistics must be copied while protected by
- * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats.
- * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
- * ring pointer is null, zero out the queue stat values and update the data
- * pointer. Otherwise safely copy the stats from the ring into the supplied
- * buffer and update the data pointer when finished.
- *
- * This function expects to be called while under rcu_read_lock().
- **/
-static inline void
-i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
-{
-	const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
-	const struct i40e_stats *stats = i40e_gstrings_queue_stats;
-	unsigned int start;
-	unsigned int i;
-
-	/* To avoid invalid statistics values, ensure that we keep retrying
-	 * the copy until we get a consistent value according to
-	 * u64_stats_fetch_retry_irq. But first, make sure our ring is
-	 * non-null before attempting to access its syncp.
-	 */
-	do {
-		start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp);
-		for (i = 0; i < size; i++) {
-			i40e_add_one_ethtool_stat(&(*data)[i], ring,
-						  &stats[i]);
-		}
-	} while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start));
-
-	/* Once we successfully copy the stats in, update the data pointer */
-	data += size;
-}
-
-/**
  * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
  * @pf: the PF device structure
  * @i: the priority value to copy
@@ -1966,42 +1822,6 @@ check_data_pointer:
 }
 
 /**
- * __i40e_add_stat_strings - copy stat strings into ethtool buffer
- * @p: ethtool supplied buffer
- * @stats: stat definitions array
- * @size: size of the stats array
- *
- * Format and copy the strings described by stats into the buffer pointed at
- * by p.
- **/
-static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
-				    const unsigned int size, ...)
-{
-	unsigned int i;
-
-	for (i = 0; i < size; i++) {
-		va_list args;
-
-		va_start(args, size);
-		vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
-		*p += ETH_GSTRING_LEN;
-		va_end(args);
-	}
-}
-
-/**
- * 40e_add_stat_strings - copy stat strings into ethtool buffer
- * @p: ethtool supplied buffer
- * @stats: stat definitions array
- *
- * Format and copy the strings described by the const static stats value into
- * the buffer pointed at by p. Assumes that stats can have ARRAY_SIZE called
- * for it.
- **/
-#define i40e_add_stat_strings(p, stats, ...) \
-	__i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
-
-/**
  * i40e_get_stat_strings - copy stat strings into supplied buffer
  * @netdev: the netdev to collect strings for
  * @data: supplied buffer to copy strings into