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Minor clean up for nlge - nlna_submit_rx_free_desc() can use the same desc

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every time. Also merge couple of one-line functions into their caller.
This commit is contained in:
Jayachandran C. 2010-09-09 02:52:44 +00:00
parent a8924cde73
commit 54dcf92b7e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=212347
1 changed files with 19 additions and 56 deletions
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75
sys/mips/rmi/dev/nlge/if_nlge.c
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@ -148,7 +148,6 @@ static void nlge_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr);
/* Other internal/helper functions */
static void *get_buf(void);
static struct mbuf *get_mbuf(void);
static void nlna_add_to_port_set(struct nlge_port_set *pset,
struct nlge_softc *sc);
@ -170,8 +169,6 @@ static void nlna_reset_ports(struct nlna_softc *sc,
struct xlr_gmac_block_t *blk);
static struct nlna_softc *nlna_sc_init(device_t dev,
struct xlr_gmac_block_t *blk);
static __inline__ int nlna_send_free_desc(struct nlna_softc *nlna,
vm_paddr_t addr);
static void nlna_setup_intr(struct nlna_softc *sc);
static void nlna_smp_update_pde(void *dummy __unused);
static void nlna_submit_rx_free_desc(struct nlna_softc *sc,
@ -206,7 +203,6 @@ static int prepare_fmn_message(struct nlge_softc *sc,
struct msgrng_msg *msg, uint32_t *n_entries, struct mbuf *m_head,
uint64_t fr_stid, struct nlge_tx_desc **tx_desc);
static void release_mbuf(uint64_t phy_addr);
static void release_tx_desc(vm_paddr_t phy_addr);
static int send_fmn_msg_tx(struct nlge_softc *, struct msgrng_msg *,
uint32_t n_entries);
@ -680,7 +676,7 @@ nlge_msgring_handler(int bucket, int size, int code, int stid,
if (is_p2p) {
release_tx_desc(phys_addr);
} else {
release_mbuf(phys_addr);
m_freem((struct mbuf *)(uintptr_t)phys_addr);
}
ifp = sc->nlge_if;
@ -1009,39 +1005,23 @@ nlna_is_last_active_na(struct nlna_softc *sc)
return (id == 2 || xlr_board_info.gmac_block[id + 1].enabled == 0);
}
static __inline__ int
nlna_send_free_desc(struct nlna_softc *sc, vm_paddr_t addr)
{
struct msgrng_msg msg;
uint32_t msgrng_flags;
int i = 0, stid, code, ret;
stid = sc->rfrbucket;
memset(&msg, 0, sizeof(msg));
msg.msg0 = (uint64_t) addr & 0xffffffffe0ULL;
code = (sc->na_type == XLR_XGMAC) ? MSGRNG_CODE_XGMAC : MSGRNG_CODE_MAC;
do {
msgrng_flags = msgrng_access_enable();
ret = message_send_retry(1, code, stid, &msg);
msgrng_restore(msgrng_flags);
KASSERT(i++ < 100000, ("Too many credit fails\n"));
} while (ret != 0);
return (0);
}
static void
nlna_submit_rx_free_desc(struct nlna_softc *sc, uint32_t n_desc)
{
struct msgrng_msg msg;
void *ptr;
int i;
int ret;
uint32_t msgrng_flags;
int i, n, stid, ret, code;
if (n_desc > 1) {
PDEBUG("Sending %d free-in descriptors to station=%d\n", n_desc,
sc->rfrbucket);
}
stid = sc->rfrbucket;
code = (sc->na_type == XLR_XGMAC) ? MSGRNG_CODE_XGMAC : MSGRNG_CODE_MAC;
memset(&msg, 0, sizeof(msg));
for (i = 0; i < n_desc; i++) {
ptr = get_buf();
if (!ptr) {
@ -1051,10 +1031,14 @@ nlna_submit_rx_free_desc(struct nlna_softc *sc, uint32_t n_desc)
}
/* Send the free Rx desc to the MAC */
ret = nlna_send_free_desc(sc, vtophys(ptr));
if (ret != 0) /* no point trying other descriptors after
a failure. */
break;
msg.msg0 = vtophys(ptr) & 0xffffffffe0ULL;
n = 0;
do {
msgrng_flags = msgrng_access_enable();
ret = message_send_retry(1, code, stid, &msg);
msgrng_restore(msgrng_flags);
KASSERT(n++ < 100000, ("Too many credit fails\n"));
} while (ret != 0);
}
}
@ -1981,15 +1965,6 @@ send_fmn_msg_tx(struct nlge_softc *sc, struct msgrng_msg *msg,
return (0);
}
static void
release_mbuf(uint64_t phy_addr)
{
struct mbuf *m;
m = (struct mbuf *)((uint32_t) phy_addr);
m_freem(m);
}
static void
release_tx_desc(vm_paddr_t paddr)
{
@ -2008,17 +1983,6 @@ release_tx_desc(vm_paddr_t paddr)
uma_zfree(nl_tx_desc_zone, tx_desc);
}
static struct mbuf *
get_mbuf(void)
{
struct mbuf *m_new;
if ((m_new = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR)) == NULL)
return NULL;
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
return (m_new);
}
static void *
get_buf(void)
{
@ -2026,10 +1990,9 @@ get_buf(void)
vm_paddr_t temp1, temp2;
unsigned int *md;
m_new = get_mbuf();
if (m_new == NULL)
return m_new;
if ((m_new = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR)) == NULL)
return NULL;
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
m_adj(m_new, XLR_CACHELINE_SIZE - ((unsigned int)m_new->m_data & 0x1f));
md = (unsigned int *)m_new->m_data;
md[0] = (unsigned int)m_new; /* Back Ptr */