ethernet/intel/e1000.rst

1 .. SPDX-License-Identifier: GPL-2.0+
8 Copyright(c) 1999 - 2013 Intel Corporation.
13 - Identifying Your Adapter
14 - Command Line Parameters
15 - Speed and Duplex Configuration
16 - Additional Configurations
17 - Support
40 	For more information about the AutoNeg, Duplex, and Speed
41         parameters, see the "Speed and Duplex Configuration" section in
50 -------
54 :Valid Range:   0x01-0x0F, 0x20-0x2F
57 This parameter is a bit-mask that specifies the speed and duplex settings
59 Duplex parameters must not be specified.
62        Refer to the Speed and Duplex section of this readme for more
65 Duplex  section in Command Line Parameters
66 ------
70 :Valid Range:   0-2 (0=auto-negotiate, 1=half, 2=full)
74 either one or two-directional.  If both Duplex and the link partner are
75 set to auto-negotiate, the board auto-detects the correct duplex.  If the
76 link partner is forced (either full or half), Duplex defaults to half-
77 duplex.
80 -----------
82 :Valid Range:   0-3 (0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx)
89 ---------------------
91 (not supported on Intel(R) 82542, 82543 or 82544-based adapters)
94    0,1,3,4,100-100000 (0=off, 1=dynamic, 3=dynamic conservative,
170        are in use simultaneously, the CPU utilization may increase non-
181        be platform-specific.  If CPU utilization is not a concern, use
185 -------------
188  - 48-256 for 82542 and 82543-based adapters
189  - 48-4096 for all other supported adapters
207 ----------
209 :Valid Range:   0-65535 (0=off)
229 -------------
233 :Valid Range:   0-65535 (0=off)
237 receive interrupt is generated.  Useful only if RxIntDelay is non-zero,
244 -----
249 :Default Value:  0 (auto-negotiate at all supported speeds)
253 partner is set to auto-negotiate, the board will auto-detect the correct
254 speed.  Duplex should also be set when Speed is set to either 10 or 100.
257 -------------
260   - 48-256 for 82542 and 82543-based adapters
261   - 48-4096 for all other supported adapters
274 ----------
276 :Valid Range:   0-65535 (0=off)
286 -------------
290 :Valid Range:   0-65535 (0=off)
294 transmit interrupt is generated.  Useful only if TxIntDelay is non-zero,
301 ------
303 (This parameter is NOT supported on the 82542-based adapter.)
305 :Valid Range:   0-1
312 ---------
314 :Valid Range:   0-xxxxxxx (0=off)
327 --------------------
329 :Valid Range: 0-1
335 Speed and Duplex Configuration
338 Three keywords are used to control the speed and duplex configuration.
339 These keywords are Speed, Duplex, and AutoNeg.
342 fiber interface board only links at 1000 Mbps full-duplex.
344 For copper-based boards, the keywords interact as follows:
346 - The default operation is auto-negotiate.  The board advertises all
347   supported speed and duplex combinations, and it links at the highest
348   common speed and duplex mode IF the link partner is set to auto-negotiate.
350 - If Speed = 1000, limited auto-negotiation is enabled and only 1000 Mbps
351   is advertised (The 1000BaseT spec requires auto-negotiation.)
353 - If Speed = 10 or 100, then both Speed and Duplex should be set.  Auto-
358 auto-negotiation process.  It should be used when you wish to control which
359 speed and duplex combinations are advertised during the auto-negotiation
370 Duplex                       Full            Full   Half   Full    Half
375   modprobe e1000 AutoNeg=0x01 (Restricts autonegotiation to 10 Half)
378   modprobe e1000 AutoNeg=0x03 (Restricts autonegotiation to 10 Half or 10 Full)
379   modprobe e1000 AutoNeg=0x04 (Restricts autonegotiation to 100 Half)
380   modprobe e1000 AutoNeg=0x05 (Restricts autonegotiation to 10 Half or 100
381   Half)
385 Note that when this parameter is used, Speed and Duplex must not be specified.
387 If the link partner is forced to a specific speed and duplex, then this
388 parameter should not be used.  Instead, use the Speed and Duplex parameters
389 previously mentioned to force the adapter to the same speed and duplex.
395 ------------
408   to the file /etc/sysconfig/network-scripts/ifcfg-eth<x>.  This example
417   networking/ip-sysctl.txt for more details.
419   - The maximum MTU setting for Jumbo Frames is 16110.  This value coincides
422   - Using Jumbo frames at 10 or 100 Mbps is not supported and may result in
425   - Adapters based on the Intel(R) 82542 and 82573V/E controller do not
432 -------
442 --------------------------
458 to the issue to intel-wired-lan@lists.osuosl.org.