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This patch switches the MINIX3 ethernet driver stack from a port-based

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model to an instance-based model. Each ethernet driver instance is now
responsible for exactly one network interface card. The port field in
/etc/inet.conf now acts as an instance field instead.

This patch also updates the data link protocol. This update:
- eliminates the concept of ports entirely;
- eliminates DL_GETNAME entirely;
- standardizes on using m_source for IPC and DL_ENDPT for safecopies;
- removes error codes from TASK/STAT replies, as they were unused;
- removes a number of other old or unused fields;
- names and renames a few other fields.

All ethernet drivers have been changed to:
- conform to the new protocol, and exactly that;
- take on an instance number based on a given "instance" argument;
- skip that number of PCI devices in probe iterations;
- use config tables and environment variables based on that number;
- no longer be limited to a predefined maximum of cards in any way;
- get rid of any leftover non-safecopy support and other ancient junk;
- have a correct banner protocol figure, or none at all.

Other changes:
* Inet.conf is now taken to be line-based, and supports #-comments.
  No existing installations are expected to be affected by this.
* A new, select-based asynchio library replaces the old one.
  Kindly contributed by Kees J. Bot.
* Inet now supports use of select() on IP devices.
  Combined, the last two changes together speed up dhcpd
  considerably in the presence of multiple interfaces.
* A small bug has been fixed in nonamed.
This commit is contained in:
David van Moolenbroek
2010-05-17 22:22:53 +00:00
parent f5bce90216
commit 9ba65d2ea8
55 changed files with 1971 additions and 4794 deletions
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42
include/minix/com.h
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@@ -262,45 +262,35 @@
#define DL_RS_BASE 0x280
/* Message types for data link layer requests. */
#define DL_WRITE (DL_RQ_BASE + 3)
#define DL_WRITEV (DL_RQ_BASE + 4)
#define DL_READ (DL_RQ_BASE + 5)
#define DL_READV (DL_RQ_BASE + 6)
#define DL_CONF (DL_RQ_BASE + 7)
#define DL_STOP (DL_RQ_BASE + 8)
#define DL_GETSTAT (DL_RQ_BASE + 9)
#define DL_GETNAME (DL_RQ_BASE +10)
#define DL_WRITEV_S (DL_RQ_BASE +11)
#define DL_READV_S (DL_RQ_BASE +12)
#define DL_GETSTAT_S (DL_RQ_BASE +13)
#define DL_CONF (DL_RQ_BASE + 0)
#define DL_GETSTAT_S (DL_RQ_BASE + 1)
#define DL_WRITEV_S (DL_RQ_BASE + 2)
#define DL_READV_S (DL_RQ_BASE + 3)
/* Message type for data link layer replies. */
#define DL_CONF_REPLY (DL_RS_BASE + 20)
#define DL_TASK_REPLY (DL_RS_BASE + 21)
#define DL_NAME_REPLY (DL_RS_BASE + 22)
#define DL_STAT_REPLY (DL_RS_BASE + 23)
#define DL_CONF_REPLY (DL_RS_BASE + 0)
#define DL_STAT_REPLY (DL_RS_BASE + 1)
#define DL_TASK_REPLY (DL_RS_BASE + 2)
/* Field names for data link layer messages. */
#define DL_PORT m2_i1
#define DL_PROC m2_i2 /* endpoint */
#define DL_ENDPT m2_i2
#define DL_COUNT m2_i3
#define DL_MODE m2_l1
#define DL_CLCK m2_l2
#define DL_ADDR m2_p1
#define DL_STAT m2_l1
#define DL_FLAGS m2_l1
#define DL_GRANT m2_l2
#define DL_NAME m3_ca1
#define DL_STAT m3_i1
#define DL_HWADDR m3_ca1
/* Bits in 'DL_STAT' field of DL replies. */
/* Bits in 'DL_FLAGS' field of DL replies. */
# define DL_NOFLAGS 0x00
# define DL_PACK_SEND 0x01
# define DL_PACK_RECV 0x02
# define DL_READ_IP 0x04
/* Bits in 'DL_MODE' field of DL requests. */
# define DL_NOMODE 0x0
# define DL_PROMISC_REQ 0x2
# define DL_MULTI_REQ 0x4
# define DL_BROAD_REQ 0x8
# define DL_PROMISC_REQ 0x1
# define DL_MULTI_REQ 0x2
# define DL_BROAD_REQ 0x4
/*===========================================================================*
* SYSTASK request types and field names *