From 6b385c9da388e63a741bb1bb4ee59419c0a141c5 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Mon, 27 Mar 2017 13:06:16 +0300 Subject: [block] Allow SAN retry count to be reconfigured Allow the SAN retry count to be configured via the ${san-retry} setting, defaulting to the current value of 10 retries if not specified. Note that setting a retry count of zero is inadvisable, since iSCSI targets in particular will often report spurious errors such as "power on occurred" for the first few commands. Signed-off-by: Michael Brown --- src/include/ipxe/dhcp.h | 7 +++++++ src/include/ipxe/sanboot.h | 2 ++ 2 files changed, 9 insertions(+) (limited to 'src/include/ipxe') diff --git a/src/include/ipxe/dhcp.h b/src/include/ipxe/dhcp.h index 23f16aaa7..0f662d633 100644 --- a/src/include/ipxe/dhcp.h +++ b/src/include/ipxe/dhcp.h @@ -433,6 +433,13 @@ struct dhcp_netdev_desc { /** Use cached network settings (obsolete; do not reuse this value) */ #define DHCP_EB_USE_CACHED DHCP_ENCAP_OPT ( DHCP_EB_ENCAP, 0xb2 ) +/** SAN retry count + * + * This is the maximum number of times that SAN operations will be + * retried. + */ +#define DHCP_EB_SAN_RETRY DHCP_ENCAP_OPT ( DHCP_EB_ENCAP, 0xbb ) + /** SAN drive number * * This is the drive number for a SAN-hooked drive. For BIOS, 0x80 is diff --git a/src/include/ipxe/sanboot.h b/src/include/ipxe/sanboot.h index a8b0291de..64b665a52 100644 --- a/src/include/ipxe/sanboot.h +++ b/src/include/ipxe/sanboot.h @@ -71,6 +71,8 @@ struct san_device { /** Driver private data */ void *priv; + /** Number of paths */ + unsigned int paths; /** Current active path */ struct san_path *active; /** List of opened SAN paths */ -- cgit v1.2.3-55-g7522