- 24 6月, 2015 1 次提交
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由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 6月, 2015 4 次提交
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由 Suman Tripathi 提交于
This patches fixes the code to check for IS_ERR rather than NULL for clock interface. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NSuman Tripathi <stripathi@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Suman Tripathi 提交于
drivers: net: xgene: Add ACPI support for SGMII0 and XFI1 interface of 2nd H/W version of APM X-Gene SoC ethernet controller. This patch adds the ACPI support for SGMII0 and XFI1 interface of 2nd H/W version of APM X-Gene SoC ethernet controller. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NSuman Tripathi <stripathi@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Suman Tripathi 提交于
drivers: net: xgene: Implement the backward compatibility with the old and new firmware w.r.t Tx completion IRQ interrupt. This patch implements the backward compatibility with the old firmware where the Tx completion IRQ interrupt was absent whereas incase of new firmware the Tx completion IRQ interrupt is present. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NSuman Tripathi <stripathi@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Suman Tripathi 提交于
drivers: net: xgene: Fix the ACPI support for RGMII/SGMII0/XFI interface of APM X-Gene SoC ethernet controller. This patch implements couple of fixes to support ACPI for RGMII/SGMII0/XFI interface of APM X-Gene SoC ethernet controller driver. This patch uses the _SUN acpi object to fetch the port-id information whereas the FDT uses port-id binding for port-id information. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NSuman Tripathi <stripathi@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 5月, 2015 4 次提交
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由 Iyappan Subramanian 提交于
Fixed the following kbuild warnings: 1. unused variable 'of_id' 2. buffer overflow 'ring_cfg' 5 <= 5 Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Iyappan Subramanian 提交于
Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Iyappan Subramanian 提交于
Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Iyappan Subramanian 提交于
This is a preparatory patch for adding ethernet support for APM X-Gene ethernet driver to work with ring manager v2. Added xgene_ring_ops structure for storing chip specific ring manager properties and functions. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 3月, 2015 1 次提交
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由 Iyappan Subramanian 提交于
- Added wrapper functions around napi_add, napi_del, napi_enable and napi_disable - Moved platform_get_irq function call after reading phy_mode - Associating the new irq to tx completion for the supported ethernet interfaces Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 3月, 2015 1 次提交
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由 Keyur Chudgar 提交于
- Added resource initialization based on port-id field - Enabled second SGMII 1G interface Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 3月, 2015 1 次提交
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由 Fabian Frederick 提交于
of_device_id is always used as const. (See driver.of_match_table and open firmware functions) Signed-off-by: NFabian Frederick <fabf@skynet.be> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 3月, 2015 1 次提交
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由 Iyappan Subramanian 提交于
This patch fixes the backward compatibile of the older driver with the newer firmware by making the binding unique so that the older driver won't recognize the non-supported interfaces. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Tested-by: NMark Langsdorf <mlangsdo@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 2月, 2015 1 次提交
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由 Geert Uytterhoeven 提交于
If CONFIG_NET_XGENE=y but CONFIG_OF=n: drivers/net/ethernet/apm/xgene/xgene_enet_main.c:1033: warning: ‘xgene_enet_of_match’ defined but not used Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 31 1月, 2015 1 次提交
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由 Iyappan Subramanian 提交于
This patch fixes the following kernel crash, WARNING: CPU: 2 PID: 0 at net/ipv4/tcp_input.c:3079 tcp_clean_rtx_queue+0x658/0x80c() Call trace: [<fffffe0000096b7c>] dump_backtrace+0x0/0x184 [<fffffe0000096d10>] show_stack+0x10/0x1c [<fffffe0000685ea0>] dump_stack+0x74/0x98 [<fffffe00000b44e0>] warn_slowpath_common+0x88/0xb0 [<fffffe00000b461c>] warn_slowpath_null+0x14/0x20 [<fffffe00005b5c1c>] tcp_clean_rtx_queue+0x654/0x80c [<fffffe00005b6228>] tcp_ack+0x454/0x688 [<fffffe00005b6ca8>] tcp_rcv_established+0x4a4/0x62c [<fffffe00005bf4b4>] tcp_v4_do_rcv+0x16c/0x350 [<fffffe00005c225c>] tcp_v4_rcv+0x8e8/0x904 [<fffffe000059d470>] ip_local_deliver_finish+0x100/0x26c [<fffffe000059dad8>] ip_local_deliver+0xac/0xc4 [<fffffe000059d6c4>] ip_rcv_finish+0xe8/0x328 [<fffffe000059dd3c>] ip_rcv+0x24c/0x38c [<fffffe0000563950>] __netif_receive_skb_core+0x29c/0x7c8 [<fffffe0000563ea4>] __netif_receive_skb+0x28/0x7c [<fffffe0000563f54>] netif_receive_skb_internal+0x5c/0xe0 [<fffffe0000564810>] napi_gro_receive+0xb4/0x110 [<fffffe0000482a2c>] xgene_enet_process_ring+0x144/0x338 [<fffffe0000482d18>] xgene_enet_napi+0x1c/0x50 [<fffffe0000565454>] net_rx_action+0x154/0x228 [<fffffe00000b804c>] __do_softirq+0x110/0x28c [<fffffe00000b8424>] irq_exit+0x8c/0xc0 [<fffffe0000093898>] handle_IRQ+0x44/0xa8 [<fffffe000009032c>] gic_handle_irq+0x38/0x7c [...] Software writes poison data into the descriptor bytes[15:8] and upon receiving the interrupt, if those bytes are overwritten by the hardware with the valid data, software also reads bytes[7:0] and executes receive/tx completion logic. If the CPU executes the above two reads in out of order fashion, then the bytes[7:0] will have older data and causing the kernel panic. We have to force the order of the reads and thus this patch introduces read memory barrier between these reads. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 13 1月, 2015 1 次提交
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由 Dan Carpenter 提交于
devm_ioremap() returns NULL on failure, it doesn't return an ERR_PTR. Fixes: de7b5b3d ('net: eth: xgene: change APM X-Gene SoC platform ethernet to support ACPI') Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Acked-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 07 1月, 2015 1 次提交
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由 Feng Kan 提交于
This adds support for APM X-Gene ethernet driver to use ACPI table to derive ethernet driver parameter. Signed-off-by: NFeng Kan <fkan@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 11月, 2014 2 次提交
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由 Iyappan Subramanian 提交于
This patch fixes the following kernel crash during SGMII based 1GbE probe. BUG: Bad page state in process swapper/0 pfn:40fe6ad page:ffffffbee37a75d8 count:-1 mapcount:0 mapping: (null) index:0x0 flags: 0x0() page dumped because: nonzero _count Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.17.0+ #7 Call trace: [<ffffffc000087fa0>] dump_backtrace+0x0/0x12c [<ffffffc0000880dc>] show_stack+0x10/0x1c [<ffffffc0004d981c>] dump_stack+0x74/0xc4 [<ffffffc00012fe70>] bad_page+0xd8/0x128 [<ffffffc000133000>] get_page_from_freelist+0x4b8/0x640 [<ffffffc000133260>] __alloc_pages_nodemask+0xd8/0x834 [<ffffffc0004194f8>] __netdev_alloc_frag+0x124/0x1b8 [<ffffffc00041bfdc>] __netdev_alloc_skb+0x90/0x10c [<ffffffc00039ff30>] xgene_enet_refill_bufpool+0x11c/0x280 [<ffffffc0003a11a4>] xgene_enet_process_ring+0x168/0x340 [<ffffffc0003a1498>] xgene_enet_napi+0x1c/0x50 [<ffffffc00042b454>] net_rx_action+0xc8/0x18c [<ffffffc0000b0880>] __do_softirq+0x114/0x24c [<ffffffc0000b0c34>] irq_exit+0x94/0xc8 [<ffffffc0000e68a0>] __handle_domain_irq+0x8c/0xf4 [<ffffffc000081288>] gic_handle_irq+0x30/0x7c This was due to hardware resource sharing conflict with the firmware. This patch fixes this crash by using resources (descriptor ring, prefetch buffer) that are not shared. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Iyappan Subramanian 提交于
This patch adds support when used with older firmware (<= 1.13.28). - Added xgene_ring_mgr_init() to check whether ring manager is initialized - Calling xgene_ring_mgr_init() from xgene_port_ops.reset() - To handle errors, changed the return type of xgene_port_ops.reset() Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 10月, 2014 1 次提交
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由 Varka Bhadram 提交于
devm_ioremap_resource checks platform_get_resource() return value. We can remove the duplicate check here. Signed-off-by: NVarka Bhadram <varkab@cdac.in> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 15 10月, 2014 2 次提交
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由 Iyappan Subramanian 提交于
Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Iyappan Subramanian 提交于
- Added link_state function pointer to the xgene__mac_ops structure - Moved ring manager (pdata->rm) assignment to xgene_enet_setup_ops - Removed unused variable (pdata->phy_addr) and macro (FULL_DUPLEX) Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 10月, 2014 2 次提交
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由 Iyappan Subramanian 提交于
- Added 10GbE support - Removed unused macros/variables - Moved mac_init call to the end of hardware init Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Iyappan Subramanian 提交于
- Rearranged code to pave the way for adding 10GbE support - Added mac_ops structure containing function pointers for mac specific functions - Added port_ops structure containing function pointers for port specific functions Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 8月, 2014 1 次提交
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由 Iyappan Subramanian 提交于
A NULL pointer dereference is possible for the argument ring->buf_pool which is passed to xgene_enet_free_desc_ring(), as ring could be NULL. And now since NULL pointers are being checked for before the calls to xgene_enet_free_desc_ring(), might as well take advantage of them and not call the function if the argument would be NULL. Reported-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 15 8月, 2014 1 次提交
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由 Tobias Klauser 提交于
xgene_enet_get_ring_size() returns a negative value in case of an error, but its only caller in xgene_enet_create_desc_ring() currently uses the return value directly as u32. Instead, check for a negative value first and error out in case. Also move the call to xgene_enet_get_ring_size() before devm_kzalloc() so we don't need to free anything in the error path. This fixes the following issue reported by the Coverity Scanner: ** CID 1231336: Improper use of negative value (NEGATIVE_RETURNS) /drivers/net/ethernet/apm/xgene/xgene_enet_main.c: 596 in xgene_enet_create_desc_ring() Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 8月, 2014 1 次提交
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由 Iyappan Subramanian 提交于
This patch adds network driver for APM X-Gene SoC ethernet. Signed-off-by: NIyappan Subramanian <isubramanian@apm.com> Signed-off-by: NRavi Patel <rapatel@apm.com> Signed-off-by: NKeyur Chudgar <kchudgar@apm.com> Signed-off-by: NDean Nelson <dnelson@redhat.com> Reviewed-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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