![Tejun Heo](/assets/img/avatar_default.png)
percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
386 lines
12 KiB
C
386 lines
12 KiB
C
/*
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drivers/net/tulip/eeprom.c
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Copyright 2000,2001 The Linux Kernel Team
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Written/copyright 1994-2001 by Donald Becker.
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
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for more information on this driver.
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Please submit bug reports to http://bugzilla.kernel.org/.
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*/
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include "tulip.h"
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#include <linux/init.h>
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#include <asm/unaligned.h>
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/* Serial EEPROM section. */
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/* The main routine to parse the very complicated SROM structure.
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Search www.digital.com for "21X4 SROM" to get details.
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This code is very complex, and will require changes to support
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additional cards, so I'll be verbose about what is going on.
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*/
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/* Known cards that have old-style EEPROMs. */
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static struct eeprom_fixup eeprom_fixups[] __devinitdata = {
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{"Asante", 0, 0, 0x94, {0x1e00, 0x0000, 0x0800, 0x0100, 0x018c,
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0x0000, 0x0000, 0xe078, 0x0001, 0x0050, 0x0018 }},
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{"SMC9332DST", 0, 0, 0xC0, { 0x1e00, 0x0000, 0x0800, 0x041f,
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0x0000, 0x009E, /* 10baseT */
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0x0004, 0x009E, /* 10baseT-FD */
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0x0903, 0x006D, /* 100baseTx */
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0x0905, 0x006D, /* 100baseTx-FD */ }},
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{"Cogent EM100", 0, 0, 0x92, { 0x1e00, 0x0000, 0x0800, 0x063f,
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0x0107, 0x8021, /* 100baseFx */
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0x0108, 0x8021, /* 100baseFx-FD */
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0x0100, 0x009E, /* 10baseT */
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0x0104, 0x009E, /* 10baseT-FD */
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0x0103, 0x006D, /* 100baseTx */
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0x0105, 0x006D, /* 100baseTx-FD */ }},
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{"Maxtech NX-110", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x0513,
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0x1001, 0x009E, /* 10base2, CSR12 0x10*/
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0x0000, 0x009E, /* 10baseT */
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0x0004, 0x009E, /* 10baseT-FD */
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0x0303, 0x006D, /* 100baseTx, CSR12 0x03 */
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0x0305, 0x006D, /* 100baseTx-FD CSR12 0x03 */}},
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{"Accton EN1207", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x051F,
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0x1B01, 0x0000, /* 10base2, CSR12 0x1B */
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0x0B00, 0x009E, /* 10baseT, CSR12 0x0B */
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0x0B04, 0x009E, /* 10baseT-FD,CSR12 0x0B */
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0x1B03, 0x006D, /* 100baseTx, CSR12 0x1B */
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0x1B05, 0x006D, /* 100baseTx-FD CSR12 0x1B */
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}},
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{"NetWinder", 0x00, 0x10, 0x57,
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/* Default media = MII
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* MII block, reset sequence (3) = 0x0821 0x0000 0x0001, capabilities 0x01e1
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*/
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{ 0x1e00, 0x0000, 0x000b, 0x8f01, 0x0103, 0x0300, 0x0821, 0x000, 0x0001, 0x0000, 0x01e1 }
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},
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{"Cobalt Microserver", 0, 0x10, 0xE0, {0x1e00, /* 0 == controller #, 1e == offset */
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0x0000, /* 0 == high offset, 0 == gap */
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0x0800, /* Default Autoselect */
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0x8001, /* 1 leaf, extended type, bogus len */
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0x0003, /* Type 3 (MII), PHY #0 */
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0x0400, /* 0 init instr, 4 reset instr */
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0x0801, /* Set control mode, GP0 output */
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0x0000, /* Drive GP0 Low (RST is active low) */
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0x0800, /* control mode, GP0 input (undriven) */
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0x0000, /* clear control mode */
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0x7800, /* 100TX FDX + HDX, 10bT FDX + HDX */
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0x01e0, /* Advertise all above */
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0x5000, /* FDX all above */
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0x1800, /* Set fast TTM in 100bt modes */
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0x0000, /* PHY cannot be unplugged */
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}},
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{NULL}};
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static const char *block_name[] __devinitdata = {
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"21140 non-MII",
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"21140 MII PHY",
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"21142 Serial PHY",
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"21142 MII PHY",
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"21143 SYM PHY",
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"21143 reset method"
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};
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/**
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* tulip_build_fake_mediatable - Build a fake mediatable entry.
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* @tp: Ptr to the tulip private data.
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*
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* Some cards like the 3x5 HSC cards (J3514A) do not have a standard
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* srom and can not be handled under the fixup routine. These cards
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* still need a valid mediatable entry for correct csr12 setup and
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* mii handling.
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*
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* Since this is currently a parisc-linux specific function, the
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* #ifdef __hppa__ should completely optimize this function away for
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* non-parisc hardware.
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*/
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static void __devinit tulip_build_fake_mediatable(struct tulip_private *tp)
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{
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#ifdef CONFIG_GSC
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if (tp->flags & NEEDS_FAKE_MEDIA_TABLE) {
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static unsigned char leafdata[] =
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{ 0x01, /* phy number */
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0x02, /* gpr setup sequence length */
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0x02, 0x00, /* gpr setup sequence */
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0x02, /* phy reset sequence length */
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0x01, 0x00, /* phy reset sequence */
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0x00, 0x78, /* media capabilities */
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0x00, 0xe0, /* nway advertisment */
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0x00, 0x05, /* fdx bit map */
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0x00, 0x06 /* ttm bit map */
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};
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tp->mtable = (struct mediatable *)
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kmalloc(sizeof(struct mediatable) + sizeof(struct medialeaf), GFP_KERNEL);
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if (tp->mtable == NULL)
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return; /* Horrible, impossible failure. */
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tp->mtable->defaultmedia = 0x800;
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tp->mtable->leafcount = 1;
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tp->mtable->csr12dir = 0x3f; /* inputs on bit7 for hsc-pci, bit6 for pci-fx */
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tp->mtable->has_nonmii = 0;
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tp->mtable->has_reset = 0;
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tp->mtable->has_mii = 1;
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tp->mtable->csr15dir = tp->mtable->csr15val = 0;
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tp->mtable->mleaf[0].type = 1;
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tp->mtable->mleaf[0].media = 11;
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tp->mtable->mleaf[0].leafdata = &leafdata[0];
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tp->flags |= HAS_PHY_IRQ;
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tp->csr12_shadow = -1;
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}
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#endif
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}
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void __devinit tulip_parse_eeprom(struct net_device *dev)
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{
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/*
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dev is not registered at this point, so logging messages can't
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use dev_<level> or netdev_<level> but dev->name is good via a
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hack in the caller
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*/
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/* The last media info list parsed, for multiport boards. */
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static struct mediatable *last_mediatable;
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static unsigned char *last_ee_data;
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static int controller_index;
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struct tulip_private *tp = netdev_priv(dev);
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unsigned char *ee_data = tp->eeprom;
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int i;
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tp->mtable = NULL;
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/* Detect an old-style (SA only) EEPROM layout:
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memcmp(eedata, eedata+16, 8). */
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for (i = 0; i < 8; i ++)
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if (ee_data[i] != ee_data[16+i])
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break;
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if (i >= 8) {
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if (ee_data[0] == 0xff) {
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if (last_mediatable) {
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controller_index++;
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pr_info("%s: Controller %d of multiport board\n",
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dev->name, controller_index);
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tp->mtable = last_mediatable;
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ee_data = last_ee_data;
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goto subsequent_board;
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} else
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pr_info("%s: Missing EEPROM, this interface may not work correctly!\n",
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dev->name);
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return;
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}
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/* Do a fix-up based on the vendor half of the station address prefix. */
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for (i = 0; eeprom_fixups[i].name; i++) {
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if (dev->dev_addr[0] == eeprom_fixups[i].addr0 &&
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dev->dev_addr[1] == eeprom_fixups[i].addr1 &&
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dev->dev_addr[2] == eeprom_fixups[i].addr2) {
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if (dev->dev_addr[2] == 0xE8 && ee_data[0x1a] == 0x55)
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i++; /* An Accton EN1207, not an outlaw Maxtech. */
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memcpy(ee_data + 26, eeprom_fixups[i].newtable,
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sizeof(eeprom_fixups[i].newtable));
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pr_info("%s: Old format EEPROM on '%s' board. Using substitute media control info\n",
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dev->name, eeprom_fixups[i].name);
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break;
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}
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}
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if (eeprom_fixups[i].name == NULL) { /* No fixup found. */
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pr_info("%s: Old style EEPROM with no media selection information\n",
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dev->name);
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return;
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}
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}
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controller_index = 0;
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if (ee_data[19] > 1) { /* Multiport board. */
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last_ee_data = ee_data;
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}
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subsequent_board:
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if (ee_data[27] == 0) { /* No valid media table. */
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tulip_build_fake_mediatable(tp);
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} else {
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unsigned char *p = (void *)ee_data + ee_data[27];
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unsigned char csr12dir = 0;
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int count, new_advertise = 0;
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struct mediatable *mtable;
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u16 media = get_u16(p);
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p += 2;
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if (tp->flags & CSR12_IN_SROM)
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csr12dir = *p++;
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count = *p++;
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/* there is no phy information, don't even try to build mtable */
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if (count == 0) {
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if (tulip_debug > 0)
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pr_warning("%s: no phy info, aborting mtable build\n",
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dev->name);
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return;
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}
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mtable = (struct mediatable *)
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kmalloc(sizeof(struct mediatable) + count*sizeof(struct medialeaf),
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GFP_KERNEL);
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if (mtable == NULL)
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return; /* Horrible, impossible failure. */
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last_mediatable = tp->mtable = mtable;
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mtable->defaultmedia = media;
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mtable->leafcount = count;
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mtable->csr12dir = csr12dir;
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mtable->has_nonmii = mtable->has_mii = mtable->has_reset = 0;
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mtable->csr15dir = mtable->csr15val = 0;
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pr_info("%s: EEPROM default media type %s\n",
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dev->name,
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media & 0x0800 ? "Autosense"
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: medianame[media & MEDIA_MASK]);
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for (i = 0; i < count; i++) {
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struct medialeaf *leaf = &mtable->mleaf[i];
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if ((p[0] & 0x80) == 0) { /* 21140 Compact block. */
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leaf->type = 0;
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leaf->media = p[0] & 0x3f;
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leaf->leafdata = p;
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if ((p[2] & 0x61) == 0x01) /* Bogus, but Znyx boards do it. */
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mtable->has_mii = 1;
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p += 4;
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} else {
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leaf->type = p[1];
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if (p[1] == 0x05) {
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mtable->has_reset = i;
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leaf->media = p[2] & 0x0f;
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} else if (tp->chip_id == DM910X && p[1] == 0x80) {
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/* Hack to ignore Davicom delay period block */
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mtable->leafcount--;
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count--;
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i--;
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leaf->leafdata = p + 2;
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p += (p[0] & 0x3f) + 1;
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continue;
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} else if (p[1] & 1) {
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int gpr_len, reset_len;
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mtable->has_mii = 1;
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leaf->media = 11;
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gpr_len=p[3]*2;
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reset_len=p[4+gpr_len]*2;
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new_advertise |= get_u16(&p[7+gpr_len+reset_len]);
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} else {
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mtable->has_nonmii = 1;
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leaf->media = p[2] & MEDIA_MASK;
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/* Davicom's media number for 100BaseTX is strange */
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if (tp->chip_id == DM910X && leaf->media == 1)
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leaf->media = 3;
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switch (leaf->media) {
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case 0: new_advertise |= 0x0020; break;
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case 4: new_advertise |= 0x0040; break;
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case 3: new_advertise |= 0x0080; break;
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case 5: new_advertise |= 0x0100; break;
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case 6: new_advertise |= 0x0200; break;
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}
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if (p[1] == 2 && leaf->media == 0) {
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if (p[2] & 0x40) {
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u32 base15 = get_unaligned((u16*)&p[7]);
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mtable->csr15dir =
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(get_unaligned((u16*)&p[9])<<16) + base15;
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mtable->csr15val =
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(get_unaligned((u16*)&p[11])<<16) + base15;
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} else {
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mtable->csr15dir = get_unaligned((u16*)&p[3])<<16;
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mtable->csr15val = get_unaligned((u16*)&p[5])<<16;
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}
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}
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}
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leaf->leafdata = p + 2;
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p += (p[0] & 0x3f) + 1;
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}
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if (tulip_debug > 1 && leaf->media == 11) {
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unsigned char *bp = leaf->leafdata;
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pr_info("%s: MII interface PHY %d, setup/reset sequences %d/%d long, capabilities %02x %02x\n",
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dev->name,
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bp[0], bp[1], bp[2 + bp[1]*2],
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bp[5 + bp[2 + bp[1]*2]*2],
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bp[4 + bp[2 + bp[1]*2]*2]);
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}
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pr_info("%s: Index #%d - Media %s (#%d) described by a %s (%d) block\n",
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dev->name,
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i, medianame[leaf->media & 15], leaf->media,
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leaf->type < ARRAY_SIZE(block_name) ? block_name[leaf->type] : "<unknown>",
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leaf->type);
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}
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if (new_advertise)
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tp->sym_advertise = new_advertise;
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}
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}
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/* Reading a serial EEPROM is a "bit" grungy, but we work our way through:->.*/
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/* EEPROM_Ctrl bits. */
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#define EE_SHIFT_CLK 0x02 /* EEPROM shift clock. */
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#define EE_CS 0x01 /* EEPROM chip select. */
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#define EE_DATA_WRITE 0x04 /* Data from the Tulip to EEPROM. */
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#define EE_WRITE_0 0x01
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#define EE_WRITE_1 0x05
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#define EE_DATA_READ 0x08 /* Data from the EEPROM chip. */
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#define EE_ENB (0x4800 | EE_CS)
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/* Delay between EEPROM clock transitions.
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Even at 33Mhz current PCI implementations don't overrun the EEPROM clock.
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We add a bus turn-around to insure that this remains true. */
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#define eeprom_delay() ioread32(ee_addr)
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/* The EEPROM commands include the alway-set leading bit. */
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#define EE_READ_CMD (6)
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/* Note: this routine returns extra data bits for size detection. */
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int __devinit tulip_read_eeprom(struct net_device *dev, int location, int addr_len)
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{
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int i;
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unsigned retval = 0;
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struct tulip_private *tp = netdev_priv(dev);
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void __iomem *ee_addr = tp->base_addr + CSR9;
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int read_cmd = location | (EE_READ_CMD << addr_len);
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/* If location is past the end of what we can address, don't
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* read some other location (ie truncate). Just return zero.
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*/
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if (location > (1 << addr_len) - 1)
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return 0;
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iowrite32(EE_ENB & ~EE_CS, ee_addr);
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iowrite32(EE_ENB, ee_addr);
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/* Shift the read command bits out. */
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for (i = 4 + addr_len; i >= 0; i--) {
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short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
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iowrite32(EE_ENB | dataval, ee_addr);
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eeprom_delay();
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iowrite32(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
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eeprom_delay();
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retval = (retval << 1) | ((ioread32(ee_addr) & EE_DATA_READ) ? 1 : 0);
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}
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iowrite32(EE_ENB, ee_addr);
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eeprom_delay();
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for (i = 16; i > 0; i--) {
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iowrite32(EE_ENB | EE_SHIFT_CLK, ee_addr);
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eeprom_delay();
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retval = (retval << 1) | ((ioread32(ee_addr) & EE_DATA_READ) ? 1 : 0);
|
|
iowrite32(EE_ENB, ee_addr);
|
|
eeprom_delay();
|
|
}
|
|
|
|
/* Terminate the EEPROM access. */
|
|
iowrite32(EE_ENB & ~EE_CS, ee_addr);
|
|
return (tp->flags & HAS_SWAPPED_SEEPROM) ? swab16(retval) : retval;
|
|
}
|
|
|