diff options
| author | yongari <yongari@FreeBSD.org> | 2008-03-23 05:31:35 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2008-03-23 05:31:35 +0000 |
| commit | 031ecde7333d80f499894a2b71bfe7daee8bc4e5 (patch) | |
| tree | 4893027dd94d30451384445b5348d230052115f8 | |
| parent | 7fea7ba914bcf75e3568e6864487e06c4e504245 (diff) | |
| download | FreeBSD-src-031ecde7333d80f499894a2b71bfe7daee8bc4e5.zip FreeBSD-src-031ecde7333d80f499894a2b71bfe7daee8bc4e5.tar.gz | |
For MSI capable hardwares, enable MSI enable bit in RL_CFG2
register. If MSI was disabled by hw.re.msi_disable tunable
expliclty clear the MSI enable bit.
| -rw-r--r-- | sys/dev/re/if_re.c | 13 | ||||
| -rw-r--r-- | sys/pci/if_rlreg.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/sys/dev/re/if_re.c b/sys/dev/re/if_re.c index 538a565..143376c 100644 --- a/sys/dev/re/if_re.c +++ b/sys/dev/re/if_re.c @@ -1146,6 +1146,7 @@ re_attach(dev) u_int16_t re_did = 0; int error = 0, rid, i; int msic, reg; + uint8_t cfg; sc = device_get_softc(dev); sc->rl_dev = dev; @@ -1189,6 +1190,18 @@ re_attach(dev) } } + /* For MSI capable hardwares, explicitily set/clear MSI enable bit. */ + if (msic != 0) { + CSR_WRITE_1(sc, RL_EECMD, RL_EE_MODE); + cfg = CSR_READ_1(sc, RL_CFG2); + if (sc->rl_msi != 0) + cfg |= RL_CFG2_MSI; + else + cfg &= ~RL_CFG2_MSI; + CSR_WRITE_1(sc, RL_CFG2, cfg); + CSR_WRITE_1(sc, RL_EECMD, 0); + } + /* Allocate interrupt */ if (sc->rl_msi == 0) { rid = 0; diff --git a/sys/pci/if_rlreg.h b/sys/pci/if_rlreg.h index d110df0..7e86689 100644 --- a/sys/pci/if_rlreg.h +++ b/sys/pci/if_rlreg.h @@ -382,6 +382,7 @@ #define RL_CFG2_PCI66MHZ 0x01 #define RL_CFG2_PCI64BIT 0x08 #define RL_CFG2_AUXPWR 0x10 +#define RL_CFG2_MSI 0x20 /* * Config 3 register |
