[src-draft/trunk]: src/sys/dev/pci Defer rest of config after cprng functions...

[Nathanial Sloss <nat%netbsd.org@localhost>]

details:   https://anonhg.NetBSD.org/src-all/rev/868b25058e22
branches:  trunk
changeset: 939176:868b25058e22
user:      Nathanial Sloss <nat%netbsd.org@localhost>
date:      Wed May 13 12:09:40 2020 +1000

description:
Defer rest of config after cprng functions have been initialized.

diffstat:

 sys/dev/pci/if_iwn.c |  71 ++++++++++++++++++++++++++++++++++-----------------
 1 files changed, 47 insertions(+), 24 deletions(-)

diffs (120 lines):

diff -r 80ebf5998c28 -r 868b25058e22 sys/dev/pci/if_iwn.c
--- a/sys/dev/pci/if_iwn.c      Wed May 13 12:08:53 2020 +1000
+++ b/sys/dev/pci/if_iwn.c      Wed May 13 12:09:40 2020 +1000
@@ -124,6 +124,7 @@
 
 static int     iwn_match(device_t , struct cfdata *, void *);
 static void    iwn_attach(device_t , device_t , void *);
+static int     iwn_config_complete(device_t);
 static int     iwn4965_attach(struct iwn_softc *, pci_product_id_t);
 static int     iwn5000_attach(struct iwn_softc *, pci_product_id_t);
 //static void  iwn_radiotap_attach(struct iwn_softc *);
@@ -379,7 +380,6 @@
 iwn_attach(device_t parent __unused, device_t self, void *aux)
 {
        struct iwn_softc *sc = device_private(self);
-       struct ieee80211com *ic = &sc->sc_ic;
        struct pci_attach_args *pa = aux;
        const char *intrstr;
        pcireg_t memtype, reg;
@@ -545,6 +545,46 @@
            ((sc->rxchainmask >> 2) & 1) +
            ((sc->rxchainmask >> 1) & 1) +
            ((sc->rxchainmask >> 0) & 1);
+
+       if (config_finalize_register(self, iwn_config_complete)) {
+               aprint_error_dev(self,
+                   "Falied to register config finalize");
+               goto fail4;
+       }
+
+       return;
+
+       /* Free allocated memory if something failed during attachment. */
+//fail5:       iwn_free_rx_ring(sc, &sc->rxq);
+fail4: while (--i >= 0)
+               iwn_free_tx_ring(sc, &sc->txq[i]);
+#ifdef IWN_USE_RBUF
+       iwn_free_rpool(sc);
+#endif
+       iwn_free_sched(sc);
+fail3: if (sc->ict != NULL)
+               iwn_free_ict(sc);
+fail2: iwn_free_kw(sc);
+fail1: iwn_free_fwmem(sc);
+failih:        pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
+       sc->sc_ih = NULL;
+failia:        pci_intr_release(sc->sc_pct, sc->sc_pihp, 1);
+       sc->sc_pihp = NULL;
+failsi:        softint_disestablish(sc->sc_soft_ih);
+       sc->sc_soft_ih = NULL;
+unmap: bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz);
+
+}
+
+static int
+iwn_config_complete(device_t self)
+{
+       struct iwn_softc *sc = device_private(self);
+       struct ieee80211com *ic = &sc->sc_ic;
+
+       if (ic->ic_name != NULL && strcmp("iwn", ic->ic_name) == 0)
+               return 0;
+
        aprint_normal_dev(self, "MIMO %dT%dR, %.4s, address %s\n",
            sc->ntxchains, sc->nrxchains, sc->eeprom_domain,
            ether_sprintf(ic->ic_macaddr));
@@ -638,9 +678,9 @@
        ic->ic_ampdu_tx_stop = iwn_ampdu_tx_stop;
 #endif
 
+#if 0
        /* XXX media locking needs revisiting */
        mutex_init(&sc->sc_media_mtx, MUTEX_DEFAULT, IPL_SOFTNET);
-#if 0
        ieee80211_media_init_with_lock(ic,
            iwn_media_change, ieee80211_media_status, &sc->sc_media_mtx);
 #endif
@@ -662,37 +702,20 @@
         if (vap == NULL) {
                 /* Didn't work ... now what! */
                 printf ("NNN vap_create didn't work ...\n");
+               return 0;
        }
 
        if (pmf_device_register(self, NULL, iwn_resume))
                pmf_class_network_register(self, vap->iv_ifp);
-       else
+       else {
                aprint_error_dev(self, "couldn't establish power handler\n");
+               return 0;
+       }
 
 
        ieee80211_announce(ic);
 
-       return;
-
-       /* Free allocated memory if something failed during attachment. */
-//fail5:       iwn_free_rx_ring(sc, &sc->rxq);
-fail4: while (--i >= 0)
-               iwn_free_tx_ring(sc, &sc->txq[i]);
-#ifdef IWN_USE_RBUF
-       iwn_free_rpool(sc);
-#endif
-       iwn_free_sched(sc);
-fail3: if (sc->ict != NULL)
-               iwn_free_ict(sc);
-fail2: iwn_free_kw(sc);
-fail1: iwn_free_fwmem(sc);
-failih:        pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
-       sc->sc_ih = NULL;
-failia:        pci_intr_release(sc->sc_pct, sc->sc_pihp, 1);
-       sc->sc_pihp = NULL;
-failsi:        softint_disestablish(sc->sc_soft_ih);
-       sc->sc_soft_ih = NULL;
-unmap: bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz);
+       return 0;
 }
 
 static void