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2014-10-14drivers: net: xgene: Add SGMII based 1GbE ethtool supportIyappan Subramanian1-8/+17
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-14drivers: net: xgene: Add SGMII based 1GbE supportIyappan Subramanian7-5/+453
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-14drivers: net: xgene: Preparing for adding SGMII based 1GbEIyappan Subramanian6-8/+8
- 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: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-10drivers: net: xgene: Add 10GbE ethtool supportIyappan Subramanian1-6/+22
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-10drivers: net: xgene: Add 10GbE supportIyappan Subramanian6-30/+438
- Added 10GbE support - Removed unused macros/variables - Moved mac_init call to the end of hardware init Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-10drivers: net: xgene: Preparing for adding 10GbE supportIyappan Subramanian4-41/+78
- 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: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-01drivers: net: NET_XGENE should depend on HAS_DMAGeert Uytterhoeven1-0/+1
If NO_DMA=y: drivers/built-in.o: In function `xgene_enet_delete_ring': xgene_enet_main.c:(.text+0x28755a): undefined reference to `dma_free_coherent' drivers/built-in.o: In function `xgene_enet_setup_tx_desc': xgene_enet_main.c:(.text+0x287774): undefined reference to `dma_map_single' xgene_enet_main.c:(.text+0x287780): undefined reference to `dma_mapping_error' drivers/built-in.o: In function `xgene_enet_tx_completion': xgene_enet_main.c:(.text+0x2878e6): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `xgene_enet_refill_bufpool': xgene_enet_main.c:(.text+0x2879d4): undefined reference to `dma_map_single' xgene_enet_main.c:(.text+0x2879e0): undefined reference to `dma_mapping_error' drivers/built-in.o: In function `xgene_enet_rx_frame': xgene_enet_main.c:(.text+0x287aaa): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `xgene_enet_free_desc_ring': xgene_enet_main.c:(.text+0x287f98): undefined reference to `dma_free_coherent' drivers/built-in.o: In function `xgene_enet_create_desc_ring': xgene_enet_main.c:(.text+0x28808e): undefined reference to `dma_alloc_coherent' drivers/built-in.o: In function `xgene_enet_probe': xgene_enet_main.c:(.text+0x2883d4): undefined reference to `dma_set_mask' xgene_enet_main.c:(.text+0x2883ec): undefined reference to `dma_supported' Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings()Iyappan Subramanian1-7/+13
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: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14net: xgene: Check negative return value of xgene_enet_get_ring_size()Tobias Klauser1-2/+5
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: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-11drivers: net: Add APM X-Gene SoC ethernet driver support.Iyappan Subramanian9-0/+2297
This patch adds network driver for APM X-Gene SoC ethernet. Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Ravi Patel <rapatel@apm.com> Signed-off-by: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: Dean Nelson <dnelson@redhat.com> Reviewed-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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