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cxgbe: Move helper functions for mbuf metadata to adapter.h.

Browse source 
Previously private to t4_sge.c, this allows other parts of the driver
(such as NIC TLS) to use these helpers directly.

Reviewed by:	np
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D38578
This commit is contained in:
John Baldwin 2023-02-17 09:06:12 -08:00
parent 8afd23de92
commit b919bf0596
2 changed files with 58 additions and 63 deletions
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58
sys/dev/cxgbe/adapter.h
View file

@ -1118,6 +1118,64 @@ hw_off_limits(struct adapter *sc)
return (__predict_false(off_limits != 0));
}
static inline int
mbuf_nsegs(struct mbuf *m)
{
M_ASSERTPKTHDR(m);
KASSERT(m->m_pkthdr.inner_l5hlen > 0,
("%s: mbuf %p missing information on # of segments.", __func__, m));
return (m->m_pkthdr.inner_l5hlen);
}
static inline void
set_mbuf_nsegs(struct mbuf *m, uint8_t nsegs)
{
M_ASSERTPKTHDR(m);
m->m_pkthdr.inner_l5hlen = nsegs;
}
/* Internal mbuf flags stored in PH_loc.eight[1]. */
#define MC_NOMAP 0x01
#define MC_RAW_WR 0x02
#define MC_TLS 0x04
static inline int
mbuf_cflags(struct mbuf *m)
{
M_ASSERTPKTHDR(m);
return (m->m_pkthdr.PH_loc.eight[4]);
}
static inline void
set_mbuf_cflags(struct mbuf *m, uint8_t flags)
{
M_ASSERTPKTHDR(m);
m->m_pkthdr.PH_loc.eight[4] = flags;
}
static inline int
mbuf_len16(struct mbuf *m)
{
int n;
M_ASSERTPKTHDR(m);
n = m->m_pkthdr.PH_loc.eight[0];
if (!(mbuf_cflags(m) & MC_TLS))
MPASS(n > 0 && n <= SGE_MAX_WR_LEN / 16);
return (n);
}
static inline void
set_mbuf_len16(struct mbuf *m, uint8_t len16)
{
M_ASSERTPKTHDR(m);
if (!(mbuf_cflags(m) & MC_TLS))
MPASS(len16 > 0 && len16 <= SGE_MAX_WR_LEN / 16);
m->m_pkthdr.PH_loc.eight[0] = len16;
}
static inline uint32_t
t4_read_reg(struct adapter *sc, uint32_t reg)
{

63
sys/dev/cxgbe/t4_sge.c
View file

@ -87,11 +87,6 @@ __FBSDID("$FreeBSD$");
#define RX_COPY_THRESHOLD MINCLSIZE
#endif
/* Internal mbuf flags stored in PH_loc.eight[1]. */
#define MC_NOMAP 0x01
#define MC_RAW_WR 0x02
#define MC_TLS 0x04
/*
* Ethernet frames are DMA'd at this byte offset into the freelist buffer.
* 0-7 are valid values.
@ -2284,64 +2279,6 @@ t4_update_fl_bufsize(struct ifnet *ifp)
#endif
}
static inline int
mbuf_nsegs(struct mbuf *m)
{
M_ASSERTPKTHDR(m);
KASSERT(m->m_pkthdr.inner_l5hlen > 0,
("%s: mbuf %p missing information on # of segments.", __func__, m));
return (m->m_pkthdr.inner_l5hlen);
}
static inline void
set_mbuf_nsegs(struct mbuf *m, uint8_t nsegs)
{
M_ASSERTPKTHDR(m);
m->m_pkthdr.inner_l5hlen = nsegs;
}
static inline int
mbuf_cflags(struct mbuf *m)
{
M_ASSERTPKTHDR(m);
return (m->m_pkthdr.PH_loc.eight[4]);
}
static inline void
set_mbuf_cflags(struct mbuf *m, uint8_t flags)
{
M_ASSERTPKTHDR(m);
m->m_pkthdr.PH_loc.eight[4] = flags;
}
static inline int
mbuf_len16(struct mbuf *m)
{
int n;
M_ASSERTPKTHDR(m);
n = m->m_pkthdr.PH_loc.eight[0];
if (!(mbuf_cflags(m) & MC_TLS))
MPASS(n > 0 && n <= SGE_MAX_WR_LEN / 16);
return (n);
}
static inline void
set_mbuf_len16(struct mbuf *m, uint8_t len16)
{
M_ASSERTPKTHDR(m);
if (!(mbuf_cflags(m) & MC_TLS))
MPASS(len16 > 0 && len16 <= SGE_MAX_WR_LEN / 16);
m->m_pkthdr.PH_loc.eight[0] = len16;
}
#ifdef RATELIMIT
static inline int
mbuf_eo_nsegs(struct mbuf *m)