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path: root/drivers/net/tg3.c
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2009-10-07tg3: Fix phylib locking strategyMatt Carlson
Felix Radensky noted that chip resets were generating stack trace dumps. This is because the driver is attempting to acquire the mdio bus mutex while holding the tp->lock spinlock. The fix is to change the code such that every phy access takes the tp->lock spinlock instead. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-11tg3: Fix return ring size breakageMatt Carlson
Commit f6eb9b1fc1411d22c073f5264e5630a541d0f7df, "tg3: Add 5717 asic rev" changed how the rx return ring size operations are done. It effectively inverts the sense of the previous test, but it failed to also invert the resulting sizes. This patch corrects that error. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03netdev: Remove redundant checks for CAP_NET_ADMIN in MDIO implementationsBen Hutchings
dev_ioctl() already checks capable(CAP_NET_ADMIN) before calling the driver's implementation of MDIO ioctls. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Update version to 3.102Matt Carlson
This patch updates the tg3 version to 3.102. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add MDIO bus address assignmentsMatt Carlson
The 5717 is a dual port chip that has a shared MDIO bus design. While it is impossible for one function to interface with the wrong phy, that function still needs to know which MDIO bus address to use when interfacing with its own phy. This patch adds code to determine which MDIO bus address to use. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add 5717 NVRAM detection routinesMatt Carlson
This patch adds NVRAM detection routines for the 5717. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add 5717 asic revMatt Carlson
This patch adds the 5717 asic rev. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Assign rx ret producer indexes by vectorMatt Carlson
When RSS is enabled, the status block format changes slightly. The "rx_jumbo_consumer", "reserved", and "rx_mini_consumer" members get mapped to the other three rx return ring producer indexes. This patch introduces a new per-interrupt member which identifies which location in the status block a particular vector should look for return ring updates. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Adjust RSS ring allocation strategiesMatt Carlson
When multivector RSS is enabled, the first interrupt vector is only used to report link interrupts and error conditions. This patch changes the code so that rx and tx ring resources are not allocated for this vector. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add RSS supportMatt Carlson
This patch adds code needed to enable RSS. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add coalesce parameters for msix vectorsMatt Carlson
This patch adds code to tune the coalescing parameters for the other msix vectors. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Enable NAPI instances for other int vectorsMatt Carlson
This patch adds code to enable and disable the rest of the NAPI instances. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add TSS supportMatt Carlson
This patch exposes the additional transmit rings to the kernel and makes the necessary modifications to transmit, open, and close paths. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Update intmbox and coal_now for msixMatt Carlson
This patch fixes up two spots that need attention now that msix support has been added. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add tx and rx ring resource trackingMatt Carlson
This patch adds code to assign status block, tx producer ring and rx return ring resources needed for the other interrupt vectors. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add mailbox assignmentsMatt Carlson
The 5717 assigns mailbox locations to interrupt vectors in a rather non-intuitive way. (Much of the complexity stems from legacy compatibility issues.) This patch implements the assignment scheme. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add MSI-X supportMatt Carlson
This patch adds MSI-X support. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add support code around kernel interrupt APIMatt Carlson
This patch adds code to support multiple interrupt vectors around the kernel's interrupt API. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Create tg3_rings_reset()Matt Carlson
This patch moves most of the chip ring setup logic into a separate function. This will make it easier to verify the multi ring setup changes. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: Add per-int coalesce now memberMatt Carlson
Each interrupt vector has its own bit in the host coalescing register to force that vector's status block to be updated and generate an interrupt. This patch adds a member to the per-interrupt structure that records which bit belongs to that vector. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02tg3: inline tg3_cond_int()Matt Carlson
This patch inlines the code of tg3_cond_int() into the function's only callsite. This prep work makes the following patch cleaner. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01netdev: convert bulk of drivers to netdev_tx_tStephen Hemminger
In a couple of cases collapse some extra code like: int retval = NETDEV_TX_OK; ... return retval; into return NETDEV_TX_OK; Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Update version to 3.101Matt Carlson
This patch updates the tg3 version to 3.101. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Move per-int tx members to a per-int structMatt Carlson
This patch moves the tx_prod, tx_cons, tx_pending, tx_ring, and tx_buffers transmit ring device members to a per-interrupt structure. It also adds a new transmit producer mailbox member (prodmbox) and converts the code to use it rather than a preprocessor constant. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Move per-int rx members to per-int structMatt Carlson
This patch moves the rx_rcb, rx_rcb_mapping, and rx_rcb_ptr return ring device members to a per-interrupt structure. It also adds a new return ring consumer mailbox register member (consmbox) and converts the code to use it rather than a preprocessor constant. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Move general int members to a per-int structMatt Carlson
This patch moves the last_tag, last_tag_irq, and hw_status device members to a per-interrupt structure. It also adds a new interrupt mailbox member (int_mbox) and converts the code to use it rather than a direct preprocessor constant. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Convert napi handlers to use tnapiMatt Carlson
This patch converts the napi interrupt handler functions to accept and use tg3_napi structures. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Convert ISR parameter to tnapiMatt Carlson
This patch migrates the ISR parameter from struct net_device to struct tg3_napi. Checkpatch complains about the existence of the preexisting IRQF_SAMPLE_RANDOM flag. I've opted to keep this patch conservative and let it continue to exist until the flag gets officially purged from the kernel. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Move napi to per-int structMatt Carlson
This patch creates a per-interrupt data structure, moves the napi member over, and creates a tg3 pointer back to the device structure. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Cleanup interrupt setup / teardownMatt Carlson
Later patches will be adding MSIX support, which will complicate interrupt initialization. This patch prepares for the integration by breaking out the interrupt setup and teardown code into separate functions and cleaning up the error return paths. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Use ext rx bdsMatt Carlson
The 5717 only uses extended buffer descriptors for the jumbo producer ring. Extended buffer descriptors are available on all devices that support a separate jumbo producer ring so make the change universal. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Create a new prodring_set structureMatt Carlson
This patch migrates most of the rx producer ring variables to a new tg3_rx_prodring_set structure and modifies the code accordingly. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Create rx producer ring setup routinesMatt Carlson
Later patches are going to complicate the ring initialization routines. This patch breaks out the setup and teardown of the rx producer rings into separate functions to make the code more readable. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Clarify rx buffer relationshipsMatt Carlson
This patch attempts to document the various rx buffer sizes used by the driver and how they relate to each other. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Move the JUMBO_CAPABLE and SUPPORT_MSI flagsMatt Carlson
This patch moves where the jumbo capable and msi support flags are located. This is prep work for the addition of msix support flags. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Break out mini producer ring handlingMatt Carlson
This patch separates the code that sets up the mini producer ring from the code that sets up the jumbo producer rings. The 5717 asic rev devices do not have a mini ring, but do have a jumbo frame implementation similar to the 5704 and previous devices. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Reformat NVRAM case statementsMatt Carlson
This patch fixes up the NVRAM detection switch statements to conform to the kernel coding style. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Add new 5785 10/100 only device IDMatt Carlson
This patch adds a new device ID for those 5785 devices that will only use 10/100 phys. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Delay mdio bus init until fw finishesMatt Carlson
The device firmware uses the MDIO bus during early setup. If the driver modifies the MDIO bus configuration while it is in use by the firmware, any number of bad things can happen. This patch delays MDIO setup until after the firmware posts its magic signature, signifying initialization is complete. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Update version to 3.100Matt Carlson
This patch updates the tg3 version to 3.100. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Convert code to use PHY_IS_FETMatt Carlson
This patch converts the code to use the PHY_IS_FET flag rather than the ASIC revision to decide whether or not to use FET paths. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Create MII_TG3_FET namespaceMatt Carlson
Broadcom's phys come in two distinctly different register layouts. For the lack of an official term to distinguish between the two formats, we can loosely categorize them by their fast ethernet or gigabit ethernet transceiver description. This patch creates the (driver-internal) Fast Ethernet Transceiver (FET) namespace and converts the 5906 EPHY definitions over. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Tune 5785 clock switchingMatt Carlson
This patch tunes the timeouts the CPMU uses to decide when to switch from the clocks output by the PHY to internal clock sources. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Add 57788, remove 57720Matt Carlson
This patch adds support for the 57788 and removes support for the 57720 which was never released. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Preserve PCIe MPS setting for new devsMatt Carlson
Most older tg3 devices only supported a PCIe maximum payload size of 128 bytes. More recent devices bump this limit up to 256 bytes though. This patch modifies the code so that the MPS limit is only enforced on those devices that only allow the 128 byte setting. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Fix TSO test against wrong flags varMatt Carlson
Julia Lawall discovered that the TG3_FLG2_TSO_CAPABLE flag was being compared against the wrong flags device member. This patch implements the fix. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Prevent tx BD corruptionMatt Carlson
This patch prevents a tx BD corruption bug by preventing the device from powering down the PLL from L1 if the link speed is 10Mbps or 100Mbps. The same bits are also used to prevent a system hang during chip reset resulting from a complicated set of events that ultimately leads to PCIe block register corruption. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-26tg3: Fix 57780 asic rev PCIe link receiver errorsMatt Carlson
This patch fixes some PCIe link receiver errors by decreasing the internal electrical idle timeout. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-08net: skb_shared_info optimizationEric Dumazet
skb_dma_unmap() is quite expensive for small packets, because we use two different cache lines from skb_shared_info. One to access nr_frags, one to access dma_maps[0] Instead of dma_maps being an array of MAX_SKB_FRAGS + 1 elements, let dma_head alone in a new dma_head field, close to nr_frags, to reduce cache lines misses. Tested on my dev machine (bnx2 & tg3 adapters), nice speedup ! Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29net: dont update dev->trans_startEric Dumazet
Second round of drivers for Gb cards (and NIU one I forgot in the 10GB round) Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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