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Improve style in mge driver

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Minor improvements introduced to ensure code follows FreeBSD style
guidelines.

Reviewed by:    adrian
Obtained from:  Semihalf
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision: https://reviews.freebsd.org/D3904
This commit is contained in:
Zbigniew Bodek 2015-10-25 22:20:13 +00:00
parent 446892110d
commit 4ac30cc1e0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=289951
1 changed files with 30 additions and 19 deletions
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49
sys/dev/mge/if_mge.c
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@ -133,13 +133,15 @@ static void mge_set_ucast_address(struct mge_softc *sc, uint8_t last_byte,
static void mge_set_prom_mode(struct mge_softc *sc, uint8_t queue);
static int mge_allocate_dma(struct mge_softc *sc);
static int mge_alloc_desc_dma(struct mge_softc *sc,
struct mge_desc_wrapper* desc_tab, uint32_t size, bus_dma_tag_t *buffer_tag);
struct mge_desc_wrapper* desc_tab, uint32_t size,
bus_dma_tag_t *buffer_tag);
static int mge_new_rxbuf(bus_dma_tag_t tag, bus_dmamap_t map,
struct mbuf **mbufp, bus_addr_t *paddr);
static void mge_get_dma_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error);
static void mge_get_dma_addr(void *arg, bus_dma_segment_t *segs, int nseg,
int error);
static void mge_free_dma(struct mge_softc *sc);
static void mge_free_desc(struct mge_softc *sc, struct mge_desc_wrapper* tab, uint32_t size,
bus_dma_tag_t buffer_tag, uint8_t free_mbufs);
static void mge_free_desc(struct mge_softc *sc, struct mge_desc_wrapper* tab,
uint32_t size, bus_dma_tag_t buffer_tag, uint8_t free_mbufs);
static void mge_offload_process_frame(struct ifnet *ifp, struct mbuf *frame,
uint32_t status, uint16_t bufsize);
static void mge_offload_setup_descriptor(struct mge_softc *sc,
@ -692,6 +694,7 @@ mge_free_desc(struct mge_softc *sc, struct mge_desc_wrapper* tab,
static void
mge_free_dma(struct mge_softc *sc)
{
/* Free desciptors and mbufs */
mge_free_desc(sc, sc->mge_rx_desc, MGE_RX_DESC_NUM, sc->mge_rx_dtag, 1);
mge_free_desc(sc, sc->mge_tx_desc, MGE_TX_DESC_NUM, sc->mge_tx_dtag, 0);
@ -815,8 +818,10 @@ mge_attach(device_t dev)
mge_ver_params(sc);
/* Initialize mutexes */
mtx_init(&sc->transmit_lock, device_get_nameunit(dev), "mge TX lock", MTX_DEF);
mtx_init(&sc->receive_lock, device_get_nameunit(dev), "mge RX lock", MTX_DEF);
mtx_init(&sc->transmit_lock, device_get_nameunit(dev), "mge TX lock",
MTX_DEF);
mtx_init(&sc->receive_lock, device_get_nameunit(dev), "mge RX lock",
MTX_DEF);
/* Allocate IO and IRQ resources */
error = bus_alloc_resources(dev, res_spec, sc->res);
@ -951,7 +956,8 @@ mge_detach(device_t dev)
if (!sc->ih_cookie[i])
continue;
error = bus_teardown_intr(dev, sc->res[1 + i], sc->ih_cookie[i]);
error = bus_teardown_intr(dev, sc->res[1 + i],
sc->ih_cookie[i]);
if (error)
device_printf(dev, "could not release %s\n",
mge_intrs[(sc->mge_intr_cnt == 1 ? 0 : i + 1)].description);
@ -982,9 +988,10 @@ mge_detach(device_t dev)
static void
mge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct mge_softc *sc = ifp->if_softc;
struct mge_softc *sc;
struct mii_data *mii;
sc = ifp->if_softc;
MGE_GLOBAL_LOCK(sc);
if (!sc->phy_attached) {
@ -1066,8 +1073,9 @@ mge_ifmedia_upd(struct ifnet *ifp)
static void
mge_init(void *arg)
{
struct mge_softc *sc = arg;
struct mge_softc *sc;
sc = arg;
MGE_GLOBAL_LOCK(sc);
mge_init_locked(arg);
@ -1213,9 +1221,10 @@ mge_init_locked(void *arg)
static void
mge_intr_rxtx(void *arg)
{
struct mge_softc *sc = arg;
struct mge_softc *sc;
uint32_t int_cause, int_cause_ext;
sc = arg;
MGE_GLOBAL_LOCK(sc);
#ifdef DEVICE_POLLING
@ -1248,9 +1257,10 @@ mge_intr_rxtx(void *arg)
static void
mge_intr_err(void *arg)
{
struct mge_softc *sc = arg;
struct mge_softc *sc;
struct ifnet *ifp;
sc = arg;
ifp = sc->ifp;
if_printf(ifp, "%s\n", __FUNCTION__);
}
@ -1258,18 +1268,20 @@ mge_intr_err(void *arg)
static void
mge_intr_misc(void *arg)
{
struct mge_softc *sc = arg;
struct mge_softc *sc;
struct ifnet *ifp;
sc = arg;
ifp = sc->ifp;
if_printf(ifp, "%s\n", __FUNCTION__);
}
static void
mge_intr_rx(void *arg) {
struct mge_softc *sc = arg;
struct mge_softc *sc;
uint32_t int_cause, int_cause_ext;
sc = arg;
MGE_RECEIVE_LOCK(sc);
#ifdef DEVICE_POLLING
@ -1411,7 +1423,6 @@ mge_intr_tx(void *arg)
MGE_TRANSMIT_UNLOCK(sc);
}
static void
mge_intr_tx_locked(struct mge_softc *sc)
{
@ -1467,7 +1478,6 @@ mge_intr_tx_locked(struct mge_softc *sc)
mge_start_locked(ifp);
}
}
static int
mge_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
{
@ -1778,7 +1788,7 @@ mge_start_locked(struct ifnet *ifp)
/* The driver support only one DMA fragment. */
if (m0->m_next != NULL) {
mtmp = m_defrag(m0, M_NOWAIT);
if (mtmp)
if (mtmp != NULL)
m0 = mtmp;
}
@ -1870,8 +1880,9 @@ mge_stop(struct mge_softc *sc)
DELAY(100);
}
if(!count)
if_printf(ifp, "%s: timeout while waiting for end of transmission\n",
if (count == 0)
if_printf(ifp,
"%s: timeout while waiting for end of transmission\n",
__FUNCTION__);
reg_val = MGE_READ(sc, MGE_PORT_SERIAL_CTRL);
@ -1918,7 +1929,7 @@ mge_offload_setup_descriptor(struct mge_softc *sc, struct mge_desc_wrapper *dw)
struct ip *ip;
int ehlen, etype;
if (csum_flags) {
if (csum_flags != 0) {
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
etype = ntohs(eh->evl_proto);
ehlen = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;