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path: root/drivers/net/tg3.c
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2005-08-06[TG3]: Save initial PCI state before registering the netdevice.David S. Miller
Else on SMP systems it is possible for hotplug to execute, invoke tg3_open(), and end up loading the uninitialized PCI register save area into the card. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-25[TG3]: Update driver version and reldate.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-25[TG3]: add 5780 fiber supportMichael Chan
Add 5780S support by adding a new tg3_setup_fiber_mii_phy() function and a timer function for parallel link detection. 5780S uses standard MII registers for 1000BaseX and runs in GMII mode as opposed to TBI mode on older serdes chips. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-25[TG3]: disallow jumbo TSO on 5780Michael Chan
Disallow jumbo TSO on 5780 due to hardware restrictions. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-25[TG3]: consolidate all DMA water mark settingsMichael Chan
Consolidate all DMA watermark settings for standard and jumbo frames on all chips in tg3_init_bufmgr_config() and add new settings for 5780. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-25[TG3]: add variable buffer size for standard ringMichael Chan
Add a new rx_pkt_buf_sz to the tg3 structure to support variable buffer sizes on the standard ring. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-25[TG3]: add 5780 basic jumbo frame supportMichael Chan
Add basic jumbo frames support for 5780. This chip supports jumbo frames on the standard receive ring without the jumbo ring. The TG3_FLAG_JUMBO_ENABLE is changed to TG3_FLAG_JUMBO_RING_ENABLE to indicate using the jumbo ring on 5704 and older chips. A new TG3_FLG2_JUMBO_CAPABLE flag is added to indicate jumbo frames support with or without the jumbo ring. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-25[TG3]: add 5780 basic supportMichael Chan
Add 5780 PCI IDs, chip IDs, and other basic support. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-05[TG3]: Update driver version and reldate.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-05[TG3]: support for ethtool -CMichael Chan
Add support for ethtool -C with verification of user parameters. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-24[TG3]: Update driver version and reldate.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-24[TG3]: Refinements to new locking strategy.Michael Chan
1. Move tp->irq_sync = 0 to before the interrupt mailbox IO in tg3_enable_ints() so that the interrupt handler will always see irq_sync == 0 when interrupts are enabled. 2. Remove the tg3_enable_ints() call in tg3_reset_hw(). Interrupts are always enabled explicitly or through tg3_netif_start(). This is to prevent interrupts being enabled while poll is disabled. 3. Update trans_start with jiffies in tg3_netif_stop() to prevent false NETDEV WATCHDOG. 4. Pass in the proper irq_sync parameter to tg3_full_lock() depending on netif_running() in some of the ethtool set calls. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-24[TG3]: Eliminate all hw IRQ handler spinlocks.David S. Miller
Move all driver spinlocks to be taken at sw IRQ context only. This fixes the skb_copy() we were doing with hw IRQs disabled (which is illegal and triggers a BUG() with HIGHMEM enabled). It also simplifies the locking all over the driver tremendously. We accomplish this feat by creating a special sequence to synchronize with the hw IRQ handler using a binary state and synchronize_irq(). This idea is from Herbert Xu. Thanks to Michael Chan for helping to track down all of the race conditions in initial versions of this code. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-24[TG3]: Fix missing memory barriers and SD_STATUS_UPDATED bit clearing.David S. Miller
There must be a rmb() between reading the status block tag and calling tg3_has_work(). This was missing in tg3_mis() and tg3_interrupt_tagged(). tg3_poll() got it right. Also, SD_STATUS_UPDATED must be cleared in the status block right before we call tg3_has_work(). Only tg3_poll() got this wrong. Based upon patches and commentary from Grant Grundler and Michael Chan. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-08[TG3]: Update driver version and release date.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-08[TG3]: Fix 5700/5701 DMA corruption on Apple G4.Michael Chan
Fix 5700/5701 DMA write corruption on Apple G4 by detecting the Apple UniNorth PCI 1.5 chipset and adjusting the DMA write boundary to 16. DMA test fails to detect the problem with this chipset. Thanks to Manuel Perez Ayala for reporting the problem and helping to debug it. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-06[TG3]: Update driver version and release date.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-06[TG3] Fix link failure in 5701Michael Chan
On some 5701 devices with older bootcode, the LED configuration bits in SRAM may be invalid with value zero. The fix is to check for invalid bits (0) and default to PHY 1 mode. Incorrect LED mode will lead to error in programming the PHY. Thanks to Grant Grundler for debugging the problem. >From Grant: | In May, 2004, tg3 v3.4 changed how MAC_LED_CTRL (0x40c) was getting | programmed and how to determine what to program into LED_CTRL. The new | code trusted NIC_SRAM_DATA_CFG (0x00000b58) to indicate what to write | to LED_CTRL and MII EXT_CTRL registers. On "IOX Core Lan", SRAM was | saying MODE_MAC (0x0) and that doesn't work. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-06[TG3]: Add TSO firmware licenseMichael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Fix bug in tg3_load_firmware_cpuMichael Chan
Add tg3_nvram_lock() and tg3_nvram_unlock() calls around tg3_halt_cpu(). It is possible that the bootcode may be loading code from nvram during this call and stopping the cpu without getting the lock may cause uncompleted nvram data to be left in the nvram data register. Subsequent calls to read/write nvram data will fail. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Add interrupt testMichael Chan
This test uses the previously added tg3_test_interrupt() to perform the test. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Add loopback testMichael Chan
The test will loopback one packet in MAC loopback mode and verify the packet data. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Add memory testMichael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Add register testMichael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Add parameter to tg3_haltMichael Chan
Add a reset kind parameter to tg3_halt() so that the RESET_KIND_SUSPEND parameter can be passed to tg3_halt() before doing offline tests. All other calls to tg3_halt() will use the RESET_KIND_SHUTDOWN parameter. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Add link testMichael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Add nvram testMichael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-29[TG3]: Add basic selftest infrastructureMichael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-23[TG3]: Update driver version.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-23[TG3]: Increase TEST_BUFFER_SIZE to 8K.David S. Miller
This makes the DMA bug workaround test more likely to find the problem on some systems. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-23[TG3]: Update driver version and reldate.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-23[TG3]: Add 5752M device ID.Xose Vazquez Perez
Add 0x1601 as 5752M, it's a 5752 but for mobile PCs. Stolen from Broadcom bcm5700-8.1.55 driver. Someone forgot to add it to tg3 ;-) Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-18[TG3]: In tg3_poll(), resample status_tag after doing work.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-18[TG3]: Refine DMA boundary setting.David S. Miller
Extract DMA boundary bit selection into a seperate function, tg3_calc_dma_bndry(). Call this from tg3_test_dma(). Make DMA test more reliable by using no DMA boundry setting during the test. If the test passes, then use the setting we selected before the test. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Michael Chan <mchan@broadcom.com>
2005-05-18[TG3]: Set minimal hw interrupt mitigation.David S. Miller
Even though we do software interrupt mitigation via NAPI, it still helps to have some minimal hw assisted mitigation. This helps, particularly, on systems where register I/O overhead is much greater than the CPU horsepower. For example, it helps on NUMA systems. In such cases the PIO overhead to disable interrupts for NAPI accounts for the majority of the packet processing cost. The CPU is fast enough such that only a single packet is processed by each NAPI poll call. Thanks to Michael Chan for reviewing this patch. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-18[TG3]: Add tagged status support.David S. Miller
When supported, use the TAGGED interrupt processing support the chip provides. In this mode, instead of a "on/off" binary semaphore, an incrementing tag scheme is used to ACK interrupts. All MSI supporting chips support TAGGED mode, so the tg3_msi() interrupt handler uses it unconditionally. This invariant is verified when MSI support is tested. Since we can invoke tg3_poll() multiple times per interrupt under high packet load, we fetch a new copy of the tag value in the status block right before we actually do the work. Also, because the tagged status tells the chip exactly which work we have processed, we can make two optimizations: 1) tg3_restart_ints() need not check tg3_has_work() 2) the tg3_timer() need not poke the chip 10 times per second to keep from losing interrupt events Based upon valuable feedback from Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-05[TG3]: Update driver version and reldate.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-05[TG3]: Ignore tg3_stop_block() errors.Michael Chan
tg3_stop_block() errors can be safely ignored since tg3_chip_reset() always follows tg3_stop_block() calls. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-05[TG3]: Elide tg3_stop_block messages when such events are normal.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-28[TG3]: Set SA_SAMPLE_RANDOM in request_irq() calls.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-25[TG3]: Fix tg3_restart_ints()Michael Chan
tg3_restart_ints() is called to re-enable interrupts after tg3_poll() has finished all the work. It calls tg3_cond_int() to force an interrupt if the status block updated bit is set. The updated bit will be set if there is a new status block update sometime during tg3_poll() and it can be very often. The worst part is that even if all the work has been processed, the updated bit remains set and an interrupt will be forced unnecessarily. The fix is to call tg3_has_work() instead to determine if new work is posted before forcing an interrupt. The way to force an interrupt is also changed to use "coalesce_now" instead of "SETINT". The former is generally a safer way to force the interrupt. Also deleted the first parameter to tg3_has_work() which is unused. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-25[TG3]: Refresh hw index in tg3_rx()Michael Chan
This patch refreshes the hw rx producer in tg3_rx() so that additional work posted by the hardware can be processed. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-25[TG3]: Fix bug in tg3_rx()Michael Chan
This patch fixes a bug that causes tg3_has_work() to always return 1. rx work is determined by comparing tp->rx_rcb_ptr with the current hw producer index. The hw producer index is modulo the ring size, but tp- >rx_rcb_ptr is a free running counter that goes up beyond the ring size. After the ring wraps around once, tg3_has_work() will always return 1. The fix is to always do modulo arithmetic on tp->rx_rcb_ptr. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-24[TG3]: Update driver version and release date.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-21[TG3]: Add msi testMichael Chan
Add MSI test for chips that support MSI. If MSI test fails, it will switch back to INTx mode and will print a message asking the user to report the failure. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-21[TG3]: Add msi supportMichael Chan
Add MSI support for 5751 C0 and 5752. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-21[TG3]: Fix bug in tg3_set_eeprom()Michael Chan
Fix a bug in tg3_set_eeprom() when the length is less than 4 and the offset is not 4-byte aligned. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-21[TG3]: Add nvram lock-out support for 5752 TPMMichael Chan
Add support for the NVRAM lock-out feature for TPM in 5752. If lock-out is enabled, certain NVRAM registers cannot be written to. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-21[TG3]: Add nvram detection for 5752Michael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-21[TG3]: Add GPIO3 for 5752Michael Chan
Add bit definitions for the new GPIO3 in 5752. GPIO3 must be driven as output when it is unused. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>