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| author | mav <mav@FreeBSD.org> | 2015-03-27 08:50:26 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2015-03-27 08:50:26 +0000 |
| commit | 3505e1d0e9980423dc7836c92f38eecb292942b5 (patch) | |
| tree | 491fd192f9922dba25c1aa443fe75e4aeea8fc58 /usr.sbin | |
| parent | 22ec3a9f70ad3edd256e0bcb687a59fdca0a0cbd (diff) | |
| download | FreeBSD-src-3505e1d0e9980423dc7836c92f38eecb292942b5.zip FreeBSD-src-3505e1d0e9980423dc7836c92f38eecb292942b5.tar.gz | |
MFC r279987: Add checksums to identify data and NCQ command error log.
Diffstat (limited to 'usr.sbin')
| -rw-r--r-- | usr.sbin/bhyve/pci_ahci.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/usr.sbin/bhyve/pci_ahci.c b/usr.sbin/bhyve/pci_ahci.c index e680705..73d0cb0 100644 --- a/usr.sbin/bhyve/pci_ahci.c +++ b/usr.sbin/bhyve/pci_ahci.c @@ -794,6 +794,17 @@ write_prdt(struct ahci_port *p, int slot, uint8_t *cfis, } static void +ahci_checksum(uint8_t *buf, int size) +{ + int i; + uint8_t sum = 0; + + for (i = 0; i < size - 1; i++) + sum += buf[i]; + buf[size - 1] = 0x100 - sum; +} + +static void ahci_handle_read_log(struct ahci_port *p, int slot, uint8_t *cfis) { struct ahci_cmd_hdr *hdr; @@ -809,6 +820,7 @@ ahci_handle_read_log(struct ahci_port *p, int slot, uint8_t *cfis) memset(buf, 0, sizeof(buf)); memcpy(buf, p->err_cfis, sizeof(p->err_cfis)); + ahci_checksum(buf, sizeof(buf)); if (cfis[2] == ATA_READ_LOG_EXT) ahci_write_fis_piosetup(p); @@ -915,6 +927,8 @@ handle_identify(struct ahci_port *p, int slot, uint8_t *cfis) buf[119] = (ATA_SUPPORT_RWLOGDMAEXT | 1 << 14); buf[120] = (ATA_SUPPORT_RWLOGDMAEXT | 1 << 14); buf[222] = 0x1020; + buf[255] = 0x00a5; + ahci_checksum((uint8_t *)buf, sizeof(buf)); ahci_write_fis_piosetup(p); write_prdt(p, slot, cfis, (void *)buf, sizeof(buf)); ahci_write_fis_d2h(p, slot, cfis, ATA_S_DSC | ATA_S_READY); @@ -963,6 +977,8 @@ handle_atapi_identify(struct ahci_port *p, int slot, uint8_t *cfis) if (p->xfermode & ATA_UDMA0) buf[88] |= (1 << ((p->xfermode & 7) + 8)); buf[222] = 0x1020; + buf[255] = 0x00a5; + ahci_checksum((uint8_t *)buf, sizeof(buf)); ahci_write_fis_piosetup(p); write_prdt(p, slot, cfis, (void *)buf, sizeof(buf)); ahci_write_fis_d2h(p, slot, cfis, ATA_S_DSC | ATA_S_READY); |
