xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge remote-tracking branch 'net-next/master' into mac80211-next

Browse Source 
This brings in commit 7a7c0a6438 ("mac80211: fix TX aggregation
start/stop callback race") to allow the follow-up cleanup.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2017-06-08 14:14:40 +02:00
parent 5d473fedd1 50dffe7fad
commit a43e61842e
1509 changed files with 43667 additions and 20474 deletions
Download Patch File Download Diff File Expand all files Collapse all files

147
include/linux/skbuff.h
View File

@@ -109,6 +109,7 @@
* may perform further validation in this case.
* GRE: only if the checksum is present in the header.
* SCTP: indicates the CRC in SCTP header has been validated.
* FCOE: indicates the CRC in FC frame has been validated.
*
* skb->csum_level indicates the number of consecutive checksums found in
* the packet minus one that have been verified as CHECKSUM_UNNECESSARY.
@@ -126,8 +127,10 @@
* packet as seen by netif_rx() and fills out in skb->csum. Meaning, the
* hardware doesn't need to parse L3/L4 headers to implement this.
*
* Note: Even if device supports only some protocols, but is able to produce
* skb->csum, it MUST use CHECKSUM_COMPLETE, not CHECKSUM_UNNECESSARY.
* Notes:
* - Even if device supports only some protocols, but is able to produce
* skb->csum, it MUST use CHECKSUM_COMPLETE, not CHECKSUM_UNNECESSARY.
* - CHECKSUM_COMPLETE is not applicable to SCTP and FCoE protocols.
*
* CHECKSUM_PARTIAL:
*
@@ -162,14 +165,11 @@
*
* NETIF_F_IP_CSUM and NETIF_F_IPV6_CSUM are being deprecated in favor of
* NETIF_F_HW_CSUM. New devices should use NETIF_F_HW_CSUM to indicate
* checksum offload capability. If a device has limited checksum capabilities
* (for instance can only perform NETIF_F_IP_CSUM or NETIF_F_IPV6_CSUM as
* described above) a helper function can be called to resolve
* CHECKSUM_PARTIAL. The helper functions are skb_csum_off_chk*. The helper
* function takes a spec argument that describes the protocol layer that is
* supported for checksum offload and can be called for each packet. If a
* packet does not match the specification for offload, skb_checksum_help
* is called to resolve the checksum.
* checksum offload capability.
* skb_csum_hwoffload_help() can be called to resolve CHECKSUM_PARTIAL based
* on network device checksumming capabilities: if a packet does not match
* them, skb_checksum_help or skb_crc32c_help (depending on the value of
* csum_not_inet, see item D.) is called to resolve the checksum.
*
* CHECKSUM_NONE:
*
@@ -189,11 +189,13 @@
*
* NETIF_F_SCTP_CRC - This feature indicates that a device is capable of
* offloading the SCTP CRC in a packet. To perform this offload the stack
* will set ip_summed to CHECKSUM_PARTIAL and set csum_start and csum_offset
* accordingly. Note the there is no indication in the skbuff that the
* CHECKSUM_PARTIAL refers to an SCTP checksum, a driver that supports
* both IP checksum offload and SCTP CRC offload must verify which offload
* is configured for a packet presumably by inspecting packet headers.
* will set set csum_start and csum_offset accordingly, set ip_summed to
* CHECKSUM_PARTIAL and set csum_not_inet to 1, to provide an indication in
* the skbuff that the CHECKSUM_PARTIAL refers to CRC32c.
* A driver that supports both IP checksum offload and SCTP CRC32c offload
* must verify which offload is configured for a packet by testing the
* value of skb->csum_not_inet; skb_crc32c_csum_help is provided to resolve
* CHECKSUM_PARTIAL on skbs where csum_not_inet is set to 1.
*
* NETIF_F_FCOE_CRC - This feature indicates that a device is capable of
* offloading the FCOE CRC in a packet. To perform this offload the stack
@@ -506,66 +508,6 @@ typedef unsigned int sk_buff_data_t;
typedef unsigned char *sk_buff_data_t;
#endif
/**
* struct skb_mstamp - multi resolution time stamps
* @stamp_us: timestamp in us resolution
* @stamp_jiffies: timestamp in jiffies
*/
struct skb_mstamp {
union {
u64 v64;
struct {
u32 stamp_us;
u32 stamp_jiffies;
};
};
};
/**
* skb_mstamp_get - get current timestamp
* @cl: place to store timestamps
*/
static inline void skb_mstamp_get(struct skb_mstamp *cl)
{
u64 val = local_clock();
do_div(val, NSEC_PER_USEC);
cl->stamp_us = (u32)val;
cl->stamp_jiffies = (u32)jiffies;
}
/**
* skb_mstamp_delta - compute the difference in usec between two skb_mstamp
* @t1: pointer to newest sample
* @t0: pointer to oldest sample
*/
static inline u32 skb_mstamp_us_delta(const struct skb_mstamp *t1,
const struct skb_mstamp *t0)
{
s32 delta_us = t1->stamp_us - t0->stamp_us;
u32 delta_jiffies = t1->stamp_jiffies - t0->stamp_jiffies;
/* If delta_us is negative, this might be because interval is too big,
* or local_clock() drift is too big : fallback using jiffies.
*/
if (delta_us <= 0 ||
delta_jiffies >= (INT_MAX / (USEC_PER_SEC / HZ)))
delta_us = jiffies_to_usecs(delta_jiffies);
return delta_us;
}
static inline bool skb_mstamp_after(const struct skb_mstamp *t1,
const struct skb_mstamp *t0)
{
s32 diff = t1->stamp_jiffies - t0->stamp_jiffies;
if (!diff)
diff = t1->stamp_us - t0->stamp_us;
return diff > 0;
}
/**
* struct sk_buff - socket buffer
* @next: Next buffer in list
@@ -616,6 +558,7 @@ static inline bool skb_mstamp_after(const struct skb_mstamp *t1,
* @wifi_acked_valid: wifi_acked was set
* @wifi_acked: whether frame was acked on wifi or not
* @no_fcs: Request NIC to treat last 4 bytes as Ethernet FCS
* @csum_not_inet: use CRC32c to resolve CHECKSUM_PARTIAL
* @dst_pending_confirm: need to confirm neighbour
* @napi_id: id of the NAPI struct this skb came from
* @secmark: security marking
@@ -646,7 +589,7 @@ struct sk_buff {
union {
ktime_t tstamp;
struct skb_mstamp skb_mstamp;
u64 skb_mstamp;
};
};
struct rb_node rbnode; /* used in netem & tcp stack */
@@ -744,7 +687,7 @@ struct sk_buff {
__u8 csum_valid:1;
__u8 csum_complete_sw:1;
__u8 csum_level:2;
__u8 csum_bad:1;
__u8 csum_not_inet:1;
__u8 dst_pending_confirm:1;
#ifdef CONFIG_IPV6_NDISC_NODETYPE
@@ -915,6 +858,15 @@ static inline bool skb_pkt_type_ok(u32 ptype)
return ptype <= PACKET_OTHERHOST;
}
static inline unsigned int skb_napi_id(const struct sk_buff *skb)
{
#ifdef CONFIG_NET_RX_BUSY_POLL
return skb->napi_id;
#else
return 0;
#endif
}
void kfree_skb(struct sk_buff *skb);
void kfree_skb_list(struct sk_buff *segs);
void skb_tx_error(struct sk_buff *skb);
@@ -1001,10 +953,10 @@ struct sk_buff *skb_realloc_headroom(struct sk_buff *skb,
unsigned int headroom);
struct sk_buff *skb_copy_expand(const struct sk_buff *skb, int newheadroom,
int newtailroom, gfp_t priority);
int skb_to_sgvec_nomark(struct sk_buff *skb, struct scatterlist *sg,
int offset, int len);
int skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset,
int len);
int __must_check skb_to_sgvec_nomark(struct sk_buff *skb, struct scatterlist *sg,
int offset, int len);
int __must_check skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg,
int offset, int len);
int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer);
int skb_pad(struct sk_buff *skb, int pad);
#define dev_kfree_skb(a) consume_skb(a)
@@ -3145,6 +3097,8 @@ struct skb_checksum_ops {
__wsum (*combine)(__wsum csum, __wsum csum2, int offset, int len);
};
extern const struct skb_checksum_ops *crc32c_csum_stub __read_mostly;
__wsum __skb_checksum(const struct sk_buff *skb, int offset, int len,
__wsum csum, const struct skb_checksum_ops *ops);
__wsum skb_checksum(const struct sk_buff *skb, int offset, int len,
@@ -3314,13 +3268,6 @@ void __skb_tstamp_tx(struct sk_buff *orig_skb,
void skb_tstamp_tx(struct sk_buff *orig_skb,
struct skb_shared_hwtstamps *hwtstamps);
static inline void sw_tx_timestamp(struct sk_buff *skb)
{
if (skb_shinfo(skb)->tx_flags & SKBTX_SW_TSTAMP &&
!(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS))
skb_tstamp_tx(skb, NULL);
}
/**
* skb_tx_timestamp() - Driver hook for transmit timestamping
*
@@ -3336,7 +3283,8 @@ static inline void sw_tx_timestamp(struct sk_buff *skb)
static inline void skb_tx_timestamp(struct sk_buff *skb)
{
skb_clone_tx_timestamp(skb);
sw_tx_timestamp(skb);
if (skb_shinfo(skb)->tx_flags & SKBTX_SW_TSTAMP)
skb_tstamp_tx(skb, NULL);
}
/**
@@ -3402,21 +3350,6 @@ static inline void __skb_incr_checksum_unnecessary(struct sk_buff *skb)
}
}
static inline void __skb_mark_checksum_bad(struct sk_buff *skb)
{
/* Mark current checksum as bad (typically called from GRO
* path). In the case that ip_summed is CHECKSUM_NONE
* this must be the first checksum encountered in the packet.
* When ip_summed is CHECKSUM_UNNECESSARY, this is the first
* checksum after the last one validated. For UDP, a zero
* checksum can not be marked as bad.
*/
if (skb->ip_summed == CHECKSUM_NONE ||
skb->ip_summed == CHECKSUM_UNNECESSARY)
skb->csum_bad = 1;
}
/* Check if we need to perform checksum complete validation.
*
* Returns true if checksum complete is needed, false otherwise
@@ -3470,9 +3403,6 @@ static inline __sum16 __skb_checksum_validate_complete(struct sk_buff *skb,
skb->csum_valid = 1;
return 0;
}
} else if (skb->csum_bad) {
/* ip_summed == CHECKSUM_NONE in this case */
return (__force __sum16)1;
}
skb->csum = psum;
@@ -3532,8 +3462,7 @@ static inline __wsum null_compute_pseudo(struct sk_buff *skb, int proto)
static inline bool __skb_checksum_convert_check(struct sk_buff *skb)
{
return (skb->ip_summed == CHECKSUM_NONE &&
skb->csum_valid && !skb->csum_bad);
return (skb->ip_summed == CHECKSUM_NONE && skb->csum_valid);
}
static inline void __skb_checksum_convert(struct sk_buff *skb,