Hi, i40e driver has 'struct i40e_dma_mem' defined with 'packed' directive causing kernel unaligned errors on sparc (when 40e_allocate_dma_mem_d() is being called)
log_unaligned: 1031 callbacks suppressed Kernel unaligned access at TPC[448ae8] dma_4v_alloc_coherent+0x188/0x2e0 Kernel unaligned access at TPC[448ae8] dma_4v_alloc_coherent+0x188/0x2e0 Kernel unaligned access at TPC[448ae8] dma_4v_alloc_coherent+0x188/0x2e0 Kernel unaligned access at TPC[448ae8] dma_4v_alloc_coherent+0x188/0x2e0 This can be fixed with get_unaligned/put_unaligned(). However I don't see 'struct i40e_dma_mem' is being directly shoved into NIC hardware. But instead fields of the struct are being read and used for hardware (e.g. dma_addr_t pa). For the test, I remove __packed, and i40e driver and HW works fine. (of course kernel unaligned errors are gone too). My question is, does 'struct i40e_dma_mem' required to be __packed? Thanks. -Tushar
