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[src-draft/trunk]: src/sys/dev/pci First attempt converting iwi(4) to the new...



details:   https://anonhg.NetBSD.org/src-all/rev/d5e38066d166
branches:  trunk
changeset: 364302:d5e38066d166
user:      Nathanial Sloss <nat%netbsd.org@localhost>
date:      Sun Dec 19 08:23:10 2021 +1100

description:
First attempt converting iwi(4) to the new stack.

I does not compile yet.

diffstat:

 sys/dev/pci/if_iwi.c |  366 +++++++++++++++++++++++++++++++-------------------
 1 files changed, 226 insertions(+), 140 deletions(-)

diffs (truncated from 791 to 300 lines):

diff -r f20d2deb6bec -r d5e38066d166 sys/dev/pci/if_iwi.c
--- a/sys/dev/pci/if_iwi.c      Tue Dec 07 18:27:23 2021 +0100
+++ b/sys/dev/pci/if_iwi.c      Sun Dec 19 08:23:10 2021 +1100
@@ -109,9 +109,16 @@
 static int     iwi_media_change(struct ifnet *);
 static void    iwi_media_status(struct ifnet *, struct ifmediareq *);
 static int     iwi_wme_update(struct ieee80211com *);
+static void    iwi_scan_start(struct ieee80211com *);
+static void    iwi_set_chan(struct ieee80211com *);
+static void    iwi_parent(struct ieee80211com *);
+static void    iwi_newassoc(struct ieee80211_node *, int);
+static int     iwi_transmit(struct ieee80211com *, struct mbuf *);
+static int     iwi_raw_xmit(struct ieee80211_node *, struct mbuf *,
+    const struct ieee80211_bpf_params *);
 static uint16_t        iwi_read_prom_word(struct iwi_softc *, uint8_t);
-static int     iwi_newstate(struct ieee80211com *, enum ieee80211_state, int);
-static void    iwi_fix_channel(struct ieee80211com *, struct mbuf *);
+static int     iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
+//static void  iwi_fix_channel(struct ieee80211com *, struct mbuf *);
 static void    iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int,
     struct iwi_frame *);
 static void    iwi_notification_intr(struct iwi_softc *, struct iwi_notif *);
@@ -132,7 +139,7 @@
 
 static int     iwi_get_table0(struct iwi_softc *, uint32_t *);
 
-static int     iwi_ioctl(struct ifnet *, u_long, void *);
+//static int   iwi_ioctl(struct ifnet *, u_long, void *);
 static void    iwi_stop_master(struct iwi_softc *);
 static int     iwi_reset(struct iwi_softc *);
 static int     iwi_load_ucode(struct iwi_softc *, void *, int);
@@ -140,15 +147,29 @@
 static int     iwi_cache_firmware(struct iwi_softc *);
 static void    iwi_free_firmware(struct iwi_softc *);
 static int     iwi_config(struct iwi_softc *);
-static int     iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *);
-static int     iwi_scan(struct iwi_softc *);
 static int     iwi_auth_and_assoc(struct iwi_softc *);
-static int     iwi_init(struct ifnet *);
-static void    iwi_stop(struct ifnet *, int);
+static int     iwi_init(struct iwi_softc *);
+static void    iwi_stop(struct iwi_softc *, int);
 static int     iwi_getrfkill(struct iwi_softc *);
 static void    iwi_led_set(struct iwi_softc *, uint32_t, int);
 static void    iwi_sysctlattach(struct iwi_softc *);
 
+static struct ieee80211vap *
+iwi_vap_create(struct ieee80211com *ic,  const char name[IFNAMSIZ],
+    int unit, enum ieee80211_opmode opmode, int flags,
+    const uint8_t bssid[IEEE80211_ADDR_LEN],
+    const uint8_t macaddr[IEEE80211_ADDR_LEN]);
+static void
+iwi_vap_delete(struct ieee80211vap *vap);
+static void
+iwi_get_radiocaps(struct ieee80211com *ic,
+    int maxchans, int *nchans, struct ieee80211_channel chans[]);
+
+struct iwi_vap {
+       struct ieee80211vap vap;
+       int (*newstate)(struct ieee80211vap *, enum ieee80211_state, int);
+};
+
 static inline uint8_t
 MEM_READ_1(struct iwi_softc *sc, uint32_t addr)
 {
@@ -287,16 +308,20 @@
                return;
        }
 
-       ic->ic_ifp = ifp;
-       ic->ic_wme.wme_update = iwi_wme_update;
+       ic->ic_name = device_xname(self);
+       ic->ic_txstream = 1;
+       ic->ic_rxstream = 1;
+       ic->ic_flags = IFF_BROADCAST | IFF_SIMPLEX;
+       ic->ic_softc = sc;
        ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
        ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
-       ic->ic_state = IEEE80211_S_INIT;
+       //ic->ic_state = IEEE80211_S_INIT;
 
        sc->sc_fwname = "ipw2200-bss.fw";
 
        /* set device capabilities */
        ic->ic_caps =
+           IEEE80211_C_STA |           /* Station (AP) mode supported */
            IEEE80211_C_IBSS |          /* IBSS mode supported */
            IEEE80211_C_MONITOR |       /* monitor mode supported */
            IEEE80211_C_TXPMGT |        /* tx power management */
@@ -305,19 +330,35 @@
            IEEE80211_C_WPA |           /* 802.11i */
            IEEE80211_C_WME;            /* 802.11e */
 
+       iwi_get_radiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
+           ic->ic_channels);
+       ieee80211_ifattach(ic);
+
+       ic->ic_vap_create = iwi_vap_create;
+       ic->ic_vap_delete = iwi_vap_delete;
+       ic->ic_set_channel = iwi_set_chan;
+       ic->ic_getradiocaps = iwi_get_radiocaps;
+       ic->ic_parent = iwi_parent;
+       ic->ic_scan_start = iwi_scan_start;
+       ic->ic_transmit = iwi_transmit;
+       ic->ic_raw_xmit = iwi_raw_xmit;
+       //ic->ic_update_mcast = iwi_update_mcast;
+       ic->ic_newassoc = iwi_newassoc;
+       ic->ic_wme.wme_update = iwi_wme_update;
+
        /* read MAC address from EEPROM */
        val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0);
-       ic->ic_myaddr[0] = val & 0xff;
-       ic->ic_myaddr[1] = val >> 8;
+       ic->ic_macaddr[0] = val & 0xff;
+       ic->ic_macaddr[1] = val >> 8;
        val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1);
-       ic->ic_myaddr[2] = val & 0xff;
-       ic->ic_myaddr[3] = val >> 8;
+       ic->ic_macaddr[2] = val & 0xff;
+       ic->ic_macaddr[3] = val >> 8;
        val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2);
-       ic->ic_myaddr[4] = val & 0xff;
-       ic->ic_myaddr[5] = val >> 8;
+       ic->ic_macaddr[4] = val & 0xff;
+       ic->ic_macaddr[5] = val >> 8;
 
        aprint_verbose_dev(self, "802.11 address %s\n",
-           ether_sprintf(ic->ic_myaddr));
+           ether_sprintf(ic->ic_macaddr));
 
        /* read the NIC type from EEPROM */
        val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE);
@@ -325,42 +366,8 @@
 
        DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype));
 
-       if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 ||
-           PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) {
-               /* set supported .11a rates (2915ABG only) */
-               ic->ic_sup_rates[IEEE80211_MODE_11A] = ieee80211_std_rateset_11a;
-
-               /* set supported .11a channels */
-               for (i = 36; i <= 64; i += 4) {
-                       ic->ic_channels[i].ic_freq =
-                           ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
-                       ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
-               }
-               for (i = 149; i <= 165; i += 4) {
-                       ic->ic_channels[i].ic_freq =
-                           ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
-                       ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
-               }
-       }
-
-       /* set supported .11b and .11g rates */
-       ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b;
-       ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g;
-
-       /* set supported .11b and .11g channels (1 through 14) */
-       for (i = 1; i <= 14; i++) {
-               ic->ic_channels[i].ic_freq =
-                   ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
-               ic->ic_channels[i].ic_flags =
-                   IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
-                   IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
-       }
-
        ifp->if_softc = sc;
        ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
-       ifp->if_init = iwi_init;
-       ifp->if_stop = iwi_stop;
-       ifp->if_ioctl = iwi_ioctl;
        ifp->if_start = iwi_start;
        ifp->if_watchdog = iwi_watchdog;
        IFQ_SET_READY(&ifp->if_snd);
@@ -376,9 +383,6 @@
        ic->ic_node_alloc = iwi_node_alloc;
        sc->sc_node_free = ic->ic_node_free;
        ic->ic_node_free = iwi_node_free;
-       /* override state transition machine */
-       sc->sc_newstate = ic->ic_newstate;
-       ic->ic_newstate = iwi_newstate;
 
        /* XXX media locking needs revisiting */
        mutex_init(&sc->sc_media_mtx, MUTEX_DEFAULT, IPL_SOFTNET);
@@ -437,6 +441,9 @@
        sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
        sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT);
 
+       ic->ic_rh = (struct ieee80211_radiotap_header *)&sc->sc_rxtapu;
+       ic->ic_th = (struct ieee80211_radiotap_header *)&sc->sc_txtapu;
+
        iwi_sysctlattach(sc);
 
        if (pmf_device_register(self, NULL, NULL))
@@ -459,7 +466,7 @@
 
        if (ifp->if_softc != NULL) {
                pmf_device_deregister(self);
-               iwi_stop(ifp, 1);
+               iwi_stop(sc, 1);
                iwi_free_firmware(sc);
                ieee80211_ifdetach(&sc->sc_ic);
                if_detach(ifp);
@@ -487,6 +494,67 @@
        return 0;
 }
 
+static struct ieee80211vap *
+iwi_vap_create(struct ieee80211com *ic,  const char name[IFNAMSIZ],
+    int unit, enum ieee80211_opmode opmode, int flags,
+    const uint8_t bssid[IEEE80211_ADDR_LEN],
+    const uint8_t macaddr[IEEE80211_ADDR_LEN])
+{
+       struct iwi_vap *vap;
+
+       /* Allocate the vap and setup. */
+       vap = kmem_zalloc(sizeof(*vap), KM_SLEEP);
+       if (ieee80211_vap_setup(ic, &vap->vap, name, unit, opmode,
+           flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
+               kmem_free(vap, sizeof(*vap));
+               return NULL;
+       }
+
+       /* Local overrides... */
+       vap->newstate = vap->vap.iv_newstate;
+       vap->vap.iv_newstate = iwi_newstate;
+
+       /* Use common softint-based if_input */
+       vap->vap.iv_ifp->if_percpuq = if_percpuq_create(vap->vap.iv_ifp);
+
+       /* Finish setup */
+       ieee80211_vap_attach(&vap->vap, ieee80211_media_change,
+           ieee80211_media_status, macaddr);
+
+       ic->ic_opmode = opmode;
+
+       return &vap->vap;
+}
+
+static void
+iwi_vap_delete(struct ieee80211vap *arg)
+{       
+       struct ifnet *ifp = arg->iv_ifp;
+       struct iwi_vap *vap = (struct iwi_vap *)arg;
+
+       bpf_detach(ifp);
+       ieee80211_vap_detach(arg);
+       kmem_free(vap, sizeof(*vap));
+}
+
+static void
+iwi_get_radiocaps(struct ieee80211com *ic,
+    int maxchans, int *nchans, struct ieee80211_channel chans[])
+{
+       uint8_t bands[IEEE80211_MODE_BYTES];
+        
+       memset(bands, 0, sizeof(bands));   
+       setbit(bands, IEEE80211_MODE_11B); 
+       setbit(bands, IEEE80211_MODE_11G); 
+/* XXX 11A should be set for these boards only 
+       if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 ||
+           PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) {
+*/
+
+
+       ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0);
+}
+
 static int
 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring,
     int count)
@@ -829,7 +897,7 @@
 iwi_node_free(struct ieee80211_node *ni)
 {
        struct ieee80211com *ic = ni->ni_ic;
-       struct iwi_softc *sc = ic->ic_ifp->if_softc;
+       struct iwi_softc *sc = ic->ic_softc;
        struct iwi_node *in = (struct iwi_node *)ni;
 
        if (in->in_station != -1)
@@ -847,9 +915,6 @@
        if (error != ENETRESET)
                return error;
 
-       if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
-               iwi_init(ifp);
-
        return 0;
 }
 
@@ -883,13 +948,14 @@
 static void
 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
 {
-       struct iwi_softc *sc = ifp->if_softc;
-       struct ieee80211com *ic = &sc->sc_ic;
+       struct ieee80211vap *vap = ifp->if_softc;
+       struct ieee80211com *ic = vap->iv_ic;
+       struct iwi_softc *sc = ic->ic_softc;



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