From e592a9b06cdd9f1d5a6f8026f9ec8170ebf10ef5 Mon Sep 17 00:00:00 2001 From: Mark Einon Date: Thu, 20 Oct 2011 01:18:42 +0100 Subject: [PATCH] staging: et131x: Fix issues when USE_FBR0 is not defined * Following on from making rx_ring.fbr use a common structure - reversed the fbr[] array indicies so that index 1 = FBR0 and index 0 = FBR1, which allows USE_FBR0 define to work. * Also fixed up minor issues where indexes into the array were out of bounds in some places. * Removed rx_ring.fbr common stuct TODO item from README Signed-off-by: Mark Einon Signed-off-by: Greg Kroah-Hartman --- drivers/staging/et131x/README | 1 - drivers/staging/et131x/et131x.c | 304 +++++++++++++++++--------------- 2 files changed, 158 insertions(+), 147 deletions(-) diff --git a/drivers/staging/et131x/README b/drivers/staging/et131x/README index a7b33dc5f093..1e0fcf468eb0 100644 --- a/drivers/staging/et131x/README +++ b/drivers/staging/et131x/README @@ -8,7 +8,6 @@ Note, the powermanagement options were removed from the vendor provided driver as they did not build properly at the time. TODO: - - rx_ring.fbr{0, 1} can probably share a common structure - Use of kmem_cache seems a bit unusual - Use dma_alloc_... in place of pci_alloc_... - It's too late stopping the tx queue when there is no room for the current packet. The condition should be detected for the next packet. diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c index 0bc3e0426bcc..0fbb77d35c9c 100644 --- a/drivers/staging/et131x/et131x.c +++ b/drivers/staging/et131x/et131x.c @@ -322,10 +322,14 @@ struct fbr_lookup { /* * struct rx_ring is the sructure representing the adaptor's local * reference(s) to the rings + * + ****************************************************************************** + * IMPORTANT NOTE :- fbr_lookup *fbr[NUM_FBRS] uses index 0 to refer to FBR1 + * and index 1 to refer to FRB0 + ****************************************************************************** */ struct rx_ring { struct fbr_lookup *fbr[NUM_FBRS]; - void *ps_ring_virtaddr; dma_addr_t ps_ring_physaddr; u32 local_psr_full; @@ -1907,9 +1911,9 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) /* Alloc memory for the lookup table */ #ifdef USE_FBR0 - rx_ring->fbr[0] = kmalloc(sizeof(struct fbr_lookup), GFP_KERNEL); -#endif rx_ring->fbr[1] = kmalloc(sizeof(struct fbr_lookup), GFP_KERNEL); +#endif + rx_ring->fbr[0] = kmalloc(sizeof(struct fbr_lookup), GFP_KERNEL); /* The first thing we will do is configure the sizes of the buffer * rings. These will change based on jumbo packet support. Larger @@ -1931,40 +1935,40 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) if (adapter->registry_jumbo_packet < 2048) { #ifdef USE_FBR0 - rx_ring->fbr[0]->buffsize = 256; - rx_ring->fbr[0]->num_entries = 512; -#endif - rx_ring->fbr[1]->buffsize = 2048; + rx_ring->fbr[1]->buffsize = 256; rx_ring->fbr[1]->num_entries = 512; +#endif + rx_ring->fbr[0]->buffsize = 2048; + rx_ring->fbr[0]->num_entries = 512; } else if (adapter->registry_jumbo_packet < 4096) { #ifdef USE_FBR0 - rx_ring->fbr[0]->buffsize = 512; - rx_ring->fbr[0]->num_entries = 1024; + rx_ring->fbr[1]->buffsize = 512; + rx_ring->fbr[1]->num_entries = 1024; #endif - rx_ring->fbr[1]->buffsize = 4096; - rx_ring->fbr[1]->num_entries = 512; + rx_ring->fbr[0]->buffsize = 4096; + rx_ring->fbr[0]->num_entries = 512; } else { #ifdef USE_FBR0 - rx_ring->fbr[0]->buffsize = 1024; - rx_ring->fbr[0]->num_entries = 768; + rx_ring->fbr[1]->buffsize = 1024; + rx_ring->fbr[1]->num_entries = 768; #endif - rx_ring->fbr[1]->buffsize = 16384; - rx_ring->fbr[1]->num_entries = 128; + rx_ring->fbr[0]->buffsize = 16384; + rx_ring->fbr[0]->num_entries = 128; } #ifdef USE_FBR0 - adapter->rx_ring.psr_num_entries = adapter->rx_ring.fbr[0]->num_entries + - adapter->rx_ring.fbr[1]->num_entries; + adapter->rx_ring.psr_num_entries = adapter->rx_ring.fbr[1]->num_entries + + adapter->rx_ring.fbr[0]->num_entries; #else - adapter->rx_ring.psr_num_entries = adapter->rx_ring.fbr[1]->num_entries; + adapter->rx_ring.psr_num_entries = adapter->rx_ring.fbr[0]->num_entries; #endif /* Allocate an area of memory for Free Buffer Ring 1 */ - bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[1]->num_entries) + 0xfff; - rx_ring->fbr[1]->ring_virtaddr = pci_alloc_consistent(adapter->pdev, + bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[0]->num_entries) + 0xfff; + rx_ring->fbr[0]->ring_virtaddr = pci_alloc_consistent(adapter->pdev, bufsize, - &rx_ring->fbr[1]->ring_physaddr); - if (!rx_ring->fbr[1]->ring_virtaddr) { + &rx_ring->fbr[0]->ring_physaddr); + if (!rx_ring->fbr[0]->ring_virtaddr) { dev_err(&adapter->pdev->dev, "Cannot alloc memory for Free Buffer Ring 1\n"); return -ENOMEM; @@ -1977,24 +1981,24 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) * are ever returned, make sure the high part is retrieved here * before storing the adjusted address. */ - rx_ring->fbr[1]->real_physaddr = rx_ring->fbr[1]->ring_physaddr; + rx_ring->fbr[0]->real_physaddr = rx_ring->fbr[0]->ring_physaddr; /* Align Free Buffer Ring 1 on a 4K boundary */ et131x_align_allocated_memory(adapter, - &rx_ring->fbr[1]->real_physaddr, - &rx_ring->fbr[1]->offset, 0x0FFF); + &rx_ring->fbr[0]->real_physaddr, + &rx_ring->fbr[0]->offset, 0x0FFF); - rx_ring->fbr[1]->ring_virtaddr = - (void *)((u8 *) rx_ring->fbr[1]->ring_virtaddr + - rx_ring->fbr[1]->offset); + rx_ring->fbr[0]->ring_virtaddr = + (void *)((u8 *) rx_ring->fbr[0]->ring_virtaddr + + rx_ring->fbr[0]->offset); #ifdef USE_FBR0 /* Allocate an area of memory for Free Buffer Ring 0 */ - bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[0]->num_entries) + 0xfff; - rx_ring->fbr[0]->ring_virtaddr = pci_alloc_consistent(adapter->pdev, + bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[1]->num_entries) + 0xfff; + rx_ring->fbr[1]->ring_virtaddr = pci_alloc_consistent(adapter->pdev, bufsize, - &rx_ring->fbr[0]->ring_physaddr); - if (!rx_ring->fbr[0]->ring_virtaddr) { + &rx_ring->fbr[1]->ring_physaddr); + if (!rx_ring->fbr[1]->ring_virtaddr) { dev_err(&adapter->pdev->dev, "Cannot alloc memory for Free Buffer Ring 0\n"); return -ENOMEM; @@ -2007,18 +2011,18 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) * are ever returned, make sure the high part is retrieved here before * storing the adjusted address. */ - rx_ring->fbr[0]->real_physaddr = rx_ring->fbr[0]->ring_physaddr; + rx_ring->fbr[1]->real_physaddr = rx_ring->fbr[1]->ring_physaddr; /* Align Free Buffer Ring 0 on a 4K boundary */ et131x_align_allocated_memory(adapter, - &rx_ring->fbr[0]->real_physaddr, - &rx_ring->fbr[0]->offset, 0x0FFF); + &rx_ring->fbr[1]->real_physaddr, + &rx_ring->fbr[1]->offset, 0x0FFF); - rx_ring->fbr[0]->ring_virtaddr = - (void *)((u8 *) rx_ring->fbr[0]->ring_virtaddr + - rx_ring->fbr[0]->offset); + rx_ring->fbr[1]->ring_virtaddr = + (void *)((u8 *) rx_ring->fbr[1]->ring_virtaddr + + rx_ring->fbr[1]->offset); #endif - for (i = 0; i < (rx_ring->fbr[1]->num_entries / FBR_CHUNKS); i++) { + for (i = 0; i < (rx_ring->fbr[0]->num_entries / FBR_CHUNKS); i++) { u64 fbr1_offset; u64 fbr1_tmp_physaddr; u32 fbr1_align; @@ -2030,25 +2034,25 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) * the size of FBR0. By allocating N buffers at once, we * reduce this overhead. */ - if (rx_ring->fbr[1]->buffsize > 4096) + if (rx_ring->fbr[0]->buffsize > 4096) fbr1_align = 4096; else - fbr1_align = rx_ring->fbr[1]->buffsize; + fbr1_align = rx_ring->fbr[0]->buffsize; fbr_chunksize = - (FBR_CHUNKS * rx_ring->fbr[1]->buffsize) + fbr1_align - 1; - rx_ring->fbr[1]->mem_virtaddrs[i] = + (FBR_CHUNKS * rx_ring->fbr[0]->buffsize) + fbr1_align - 1; + rx_ring->fbr[0]->mem_virtaddrs[i] = pci_alloc_consistent(adapter->pdev, fbr_chunksize, - &rx_ring->fbr[1]->mem_physaddrs[i]); + &rx_ring->fbr[0]->mem_physaddrs[i]); - if (!rx_ring->fbr[1]->mem_virtaddrs[i]) { + if (!rx_ring->fbr[0]->mem_virtaddrs[i]) { dev_err(&adapter->pdev->dev, "Could not alloc memory\n"); return -ENOMEM; } /* See NOTE in "Save Physical Address" comment above */ - fbr1_tmp_physaddr = rx_ring->fbr[1]->mem_physaddrs[i]; + fbr1_tmp_physaddr = rx_ring->fbr[0]->mem_physaddrs[i]; et131x_align_allocated_memory(adapter, &fbr1_tmp_physaddr, @@ -2060,71 +2064,71 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter) /* Save the Virtual address of this index for quick * access later */ - rx_ring->fbr[1]->virt[index] = - (u8 *) rx_ring->fbr[1]->mem_virtaddrs[i] + - (j * rx_ring->fbr[1]->buffsize) + fbr1_offset; + rx_ring->fbr[0]->virt[index] = + (u8 *) rx_ring->fbr[0]->mem_virtaddrs[i] + + (j * rx_ring->fbr[0]->buffsize) + fbr1_offset; /* now store the physical address in the descriptor * so the device can access it */ - rx_ring->fbr[1]->bus_high[index] = + rx_ring->fbr[0]->bus_high[index] = (u32) (fbr1_tmp_physaddr >> 32); - rx_ring->fbr[1]->bus_low[index] = + rx_ring->fbr[0]->bus_low[index] = (u32) fbr1_tmp_physaddr; - fbr1_tmp_physaddr += rx_ring->fbr[1]->buffsize; + fbr1_tmp_physaddr += rx_ring->fbr[0]->buffsize; - rx_ring->fbr[1]->buffer1[index] = - rx_ring->fbr[1]->virt[index]; - rx_ring->fbr[1]->buffer2[index] = - rx_ring->fbr[1]->virt[index] - 4; + rx_ring->fbr[0]->buffer1[index] = + rx_ring->fbr[0]->virt[index]; + rx_ring->fbr[0]->buffer2[index] = + rx_ring->fbr[0]->virt[index] - 4; } } #ifdef USE_FBR0 /* Same for FBR0 (if in use) */ - for (i = 0; i < (rx_ring->fbr[0]->num_entries / FBR_CHUNKS); i++) { + for (i = 0; i < (rx_ring->fbr[1]->num_entries / FBR_CHUNKS); i++) { u64 fbr0_offset; u64 fbr0_tmp_physaddr; fbr_chunksize = - ((FBR_CHUNKS + 1) * rx_ring->fbr[0]->buffsize) - 1; - rx_ring->fbr[0]->mem_virtaddrs[i] = + ((FBR_CHUNKS + 1) * rx_ring->fbr[1]->buffsize) - 1; + rx_ring->fbr[1]->mem_virtaddrs[i] = pci_alloc_consistent(adapter->pdev, fbr_chunksize, - &rx_ring->fbr[0]->mem_physaddrs[i]); + &rx_ring->fbr[1]->mem_physaddrs[i]); - if (!rx_ring->fbr[0]->mem_virtaddrs[i]) { + if (!rx_ring->fbr[1]->mem_virtaddrs[i]) { dev_err(&adapter->pdev->dev, "Could not alloc memory\n"); return -ENOMEM; } /* See NOTE in "Save Physical Address" comment above */ - fbr0_tmp_physaddr = rx_ring->fbr[0]->mem_physaddrs[i]; + fbr0_tmp_physaddr = rx_ring->fbr[1]->mem_physaddrs[i]; et131x_align_allocated_memory(adapter, &fbr0_tmp_physaddr, &fbr0_offset, - rx_ring->fbr[0]->buffsize - 1); + rx_ring->fbr[1]->buffsize - 1); for (j = 0; j < FBR_CHUNKS; j++) { u32 index = (i * FBR_CHUNKS) + j; - rx_ring->fbr[0]->virt[index] = - (u8 *) rx_ring->fbr[0]->mem_virtaddrs[i] + - (j * rx_ring->fbr[0]->buffsize) + fbr0_offset; + rx_ring->fbr[1]->virt[index] = + (u8 *) rx_ring->fbr[1]->mem_virtaddrs[i] + + (j * rx_ring->fbr[1]->buffsize) + fbr0_offset; - rx_ring->fbr[0]->bus_high[index] = + rx_ring->fbr[1]->bus_high[index] = (u32) (fbr0_tmp_physaddr >> 32); - rx_ring->fbr[0]->bus_low[index] = + rx_ring->fbr[1]->bus_low[index] = (u32) fbr0_tmp_physaddr; - fbr0_tmp_physaddr += rx_ring->fbr[0]->buffsize; + fbr0_tmp_physaddr += rx_ring->fbr[1]->buffsize; - rx_ring->fbr[0]->buffer1[index] = - rx_ring->fbr[0]->virt[index]; - rx_ring->fbr[0]->buffer2[index] = - rx_ring->fbr[0]->virt[index] - 4; + rx_ring->fbr[1]->buffer1[index] = + rx_ring->fbr[1]->virt[index]; + rx_ring->fbr[1]->buffer2[index] = + rx_ring->fbr[1]->virt[index] - 4; } } #endif @@ -2214,78 +2218,78 @@ void et131x_rx_dma_memory_free(struct et131x_adapter *adapter) } /* Free Free Buffer Ring 1 */ - if (rx_ring->fbr[1]->ring_virtaddr) { + if (rx_ring->fbr[0]->ring_virtaddr) { /* First the packet memory */ for (index = 0; index < - (rx_ring->fbr[1]->num_entries / FBR_CHUNKS); index++) { - if (rx_ring->fbr[1]->mem_virtaddrs[index]) { + (rx_ring->fbr[0]->num_entries / FBR_CHUNKS); index++) { + if (rx_ring->fbr[0]->mem_virtaddrs[index]) { u32 fbr1_align; - if (rx_ring->fbr[1]->buffsize > 4096) + if (rx_ring->fbr[0]->buffsize > 4096) fbr1_align = 4096; else - fbr1_align = rx_ring->fbr[1]->buffsize; + fbr1_align = rx_ring->fbr[0]->buffsize; bufsize = - (rx_ring->fbr[1]->buffsize * FBR_CHUNKS) + + (rx_ring->fbr[0]->buffsize * FBR_CHUNKS) + fbr1_align - 1; pci_free_consistent(adapter->pdev, bufsize, - rx_ring->fbr[1]->mem_virtaddrs[index], - rx_ring->fbr[1]->mem_physaddrs[index]); + rx_ring->fbr[0]->mem_virtaddrs[index], + rx_ring->fbr[0]->mem_physaddrs[index]); - rx_ring->fbr[1]->mem_virtaddrs[index] = NULL; + rx_ring->fbr[0]->mem_virtaddrs[index] = NULL; } } /* Now the FIFO itself */ - rx_ring->fbr[1]->ring_virtaddr = (void *)((u8 *) - rx_ring->fbr[1]->ring_virtaddr - rx_ring->fbr[1]->offset); + rx_ring->fbr[0]->ring_virtaddr = (void *)((u8 *) + rx_ring->fbr[0]->ring_virtaddr - rx_ring->fbr[0]->offset); - bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[1]->num_entries) + bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[0]->num_entries) + 0xfff; pci_free_consistent(adapter->pdev, bufsize, - rx_ring->fbr[1]->ring_virtaddr, - rx_ring->fbr[1]->ring_physaddr); + rx_ring->fbr[0]->ring_virtaddr, + rx_ring->fbr[0]->ring_physaddr); - rx_ring->fbr[1]->ring_virtaddr = NULL; + rx_ring->fbr[0]->ring_virtaddr = NULL; } #ifdef USE_FBR0 /* Now the same for Free Buffer Ring 0 */ - if (rx_ring->fbr[0]->ring_virtaddr) { + if (rx_ring->fbr[1]->ring_virtaddr) { /* First the packet memory */ for (index = 0; index < - (rx_ring->fbr[0]->num_entries / FBR_CHUNKS); index++) { - if (rx_ring->fbr[0]->mem_virtaddrs[index]) { + (rx_ring->fbr[1]->num_entries / FBR_CHUNKS); index++) { + if (rx_ring->fbr[1]->mem_virtaddrs[index]) { bufsize = - (rx_ring->fbr[0]->buffsize * + (rx_ring->fbr[1]->buffsize * (FBR_CHUNKS + 1)) - 1; pci_free_consistent(adapter->pdev, bufsize, - rx_ring->fbr[0]->mem_virtaddrs[index], - rx_ring->fbr[0]->mem_physaddrs[index]); + rx_ring->fbr[1]->mem_virtaddrs[index], + rx_ring->fbr[1]->mem_physaddrs[index]); - rx_ring->fbr[0]->mem_virtaddrs[index] = NULL; + rx_ring->fbr[1]->mem_virtaddrs[index] = NULL; } } /* Now the FIFO itself */ - rx_ring->fbr[0]->ring_virtaddr = (void *)((u8 *) - rx_ring->fbr[0]->ring_virtaddr - rx_ring->fbr[0]->offset); + rx_ring->fbr[1]->ring_virtaddr = (void *)((u8 *) + rx_ring->fbr[1]->ring_virtaddr - rx_ring->fbr[1]->offset); - bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[0]->num_entries) + bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[1]->num_entries) + 0xfff; pci_free_consistent(adapter->pdev, bufsize, - rx_ring->fbr[0]->ring_virtaddr, - rx_ring->fbr[0]->ring_physaddr); + rx_ring->fbr[1]->ring_virtaddr, + rx_ring->fbr[1]->ring_physaddr); - rx_ring->fbr[0]->ring_virtaddr = NULL; + rx_ring->fbr[1]->ring_virtaddr = NULL; } #endif @@ -2322,10 +2326,10 @@ void et131x_rx_dma_memory_free(struct et131x_adapter *adapter) /* Free the FBR Lookup Table */ #ifdef USE_FBR0 - kfree(rx_ring->fbr[0]); + kfree(rx_ring->fbr[1]); #endif - kfree(rx_ring->fbr[1]); + kfree(rx_ring->fbr[0]); /* Reset Counters */ rx_ring->num_ready_recv = 0; @@ -2431,10 +2435,10 @@ void et131x_config_rx_dma_regs(struct et131x_adapter *adapter) rx_local->local_psr_full = 0; /* Now's the best time to initialize FBR1 contents */ - fbr_entry = (struct fbr_desc *) rx_local->fbr[1]->ring_virtaddr; - for (entry = 0; entry < rx_local->fbr[1]->num_entries; entry++) { - fbr_entry->addr_hi = rx_local->fbr[1]->bus_high[entry]; - fbr_entry->addr_lo = rx_local->fbr[1]->bus_low[entry]; + fbr_entry = (struct fbr_desc *) rx_local->fbr[0]->ring_virtaddr; + for (entry = 0; entry < rx_local->fbr[0]->num_entries; entry++) { + fbr_entry->addr_hi = rx_local->fbr[0]->bus_high[entry]; + fbr_entry->addr_lo = rx_local->fbr[0]->bus_low[entry]; fbr_entry->word2 = entry; fbr_entry++; } @@ -2442,42 +2446,42 @@ void et131x_config_rx_dma_regs(struct et131x_adapter *adapter) /* Set the address and parameters of Free buffer ring 1 (and 0 if * required) into the 1310's registers */ - writel((u32) (rx_local->fbr[1]->real_physaddr >> 32), + writel((u32) (rx_local->fbr[0]->real_physaddr >> 32), &rx_dma->fbr1_base_hi); - writel((u32) rx_local->fbr[1]->real_physaddr, &rx_dma->fbr1_base_lo); - writel(rx_local->fbr[1]->num_entries - 1, &rx_dma->fbr1_num_des); + writel((u32) rx_local->fbr[0]->real_physaddr, &rx_dma->fbr1_base_lo); + writel(rx_local->fbr[0]->num_entries - 1, &rx_dma->fbr1_num_des); writel(ET_DMA10_WRAP, &rx_dma->fbr1_full_offset); /* This variable tracks the free buffer ring 1 full position, so it * has to match the above. */ - rx_local->fbr[1]->local_full = ET_DMA10_WRAP; + rx_local->fbr[0]->local_full = ET_DMA10_WRAP; writel( - ((rx_local->fbr[1]->num_entries * LO_MARK_PERCENT_FOR_RX) / 100) - 1, + ((rx_local->fbr[0]->num_entries * LO_MARK_PERCENT_FOR_RX) / 100) - 1, &rx_dma->fbr1_min_des); #ifdef USE_FBR0 /* Now's the best time to initialize FBR0 contents */ - fbr_entry = (struct fbr_desc *) rx_local->fbr[0]->ring_virtaddr; - for (entry = 0; entry < rx_local->fbr[0]->num_entries; entry++) { - fbr_entry->addr_hi = rx_local->fbr[0]->bus_high[entry]; - fbr_entry->addr_lo = rx_local->fbr[0]->bus_low[entry]; + fbr_entry = (struct fbr_desc *) rx_local->fbr[1]->ring_virtaddr; + for (entry = 0; entry < rx_local->fbr[1]->num_entries; entry++) { + fbr_entry->addr_hi = rx_local->fbr[1]->bus_high[entry]; + fbr_entry->addr_lo = rx_local->fbr[1]->bus_low[entry]; fbr_entry->word2 = entry; fbr_entry++; } - writel((u32) (rx_local->fbr[0]->real_physaddr >> 32), + writel((u32) (rx_local->fbr[1]->real_physaddr >> 32), &rx_dma->fbr0_base_hi); - writel((u32) rx_local->fbr[0]->real_physaddr, &rx_dma->fbr0_base_lo); - writel(rx_local->fbr[0]->num_entries - 1, &rx_dma->fbr0_num_des); + writel((u32) rx_local->fbr[1]->real_physaddr, &rx_dma->fbr0_base_lo); + writel(rx_local->fbr[1]->num_entries - 1, &rx_dma->fbr0_num_des); writel(ET_DMA10_WRAP, &rx_dma->fbr0_full_offset); /* This variable tracks the free buffer ring 0 full position, so it * has to match the above. */ - rx_local->fbr[0]->local_full = ET_DMA10_WRAP; + rx_local->fbr[1]->local_full = ET_DMA10_WRAP; writel( - ((rx_local->fbr[0]->num_entries * LO_MARK_PERCENT_FOR_RX) / 100) - 1, + ((rx_local->fbr[1]->num_entries * LO_MARK_PERCENT_FOR_RX) / 100) - 1, &rx_dma->fbr0_min_des); #endif @@ -2536,45 +2540,45 @@ static void nic_return_rfd(struct et131x_adapter *adapter, struct rfd *rfd) */ if ( #ifdef USE_FBR0 - (ring_index == 0 && buff_index < rx_local->fbr[0]->num_entries) || + (ring_index == 0 && buff_index < rx_local->fbr[1]->num_entries) || #endif - (ring_index == 1 && buff_index < rx_local->fbr[1]->num_entries)) { + (ring_index == 1 && buff_index < rx_local->fbr[0]->num_entries)) { spin_lock_irqsave(&adapter->fbr_lock, flags); if (ring_index == 1) { struct fbr_desc *next = - (struct fbr_desc *) (rx_local->fbr[1]->ring_virtaddr) + - INDEX10(rx_local->fbr[1]->local_full); + (struct fbr_desc *) (rx_local->fbr[0]->ring_virtaddr) + + INDEX10(rx_local->fbr[0]->local_full); /* Handle the Free Buffer Ring advancement here. Write * the PA / Buffer Index for the returned buffer into * the oldest (next to be freed)FBR entry */ - next->addr_hi = rx_local->fbr[1]->bus_high[buff_index]; - next->addr_lo = rx_local->fbr[1]->bus_low[buff_index]; + next->addr_hi = rx_local->fbr[0]->bus_high[buff_index]; + next->addr_lo = rx_local->fbr[0]->bus_low[buff_index]; next->word2 = buff_index; - writel(bump_free_buff_ring(&rx_local->fbr[1]->local_full, - rx_local->fbr[1]->num_entries - 1), + writel(bump_free_buff_ring(&rx_local->fbr[0]->local_full, + rx_local->fbr[0]->num_entries - 1), &rx_dma->fbr1_full_offset); } #ifdef USE_FBR0 else { struct fbr_desc *next = (struct fbr_desc *) - rx_local->fbr[0]->ring_virtaddr + - INDEX10(rx_local->fbr[0]->local_full); + rx_local->fbr[1]->ring_virtaddr + + INDEX10(rx_local->fbr[1]->local_full); /* Handle the Free Buffer Ring advancement here. Write * the PA / Buffer Index for the returned buffer into * the oldest (next to be freed) FBR entry */ - next->addr_hi = rx_local->fbr[0]->bus_high[buff_index]; - next->addr_lo = rx_local->fbr[0]->bus_low[buff_index]; + next->addr_hi = rx_local->fbr[1]->bus_high[buff_index]; + next->addr_lo = rx_local->fbr[1]->bus_low[buff_index]; next->word2 = buff_index; writel(bump_free_buff_ring( - &rx_local->fbr[0]->local_full, - rx_local->fbr[0]->num_entries - 1), + &rx_local->fbr[1]->local_full, + rx_local->fbr[1]->num_entries - 1), &rx_dma->fbr0_full_offset); } #endif @@ -2624,19 +2628,19 @@ void et131x_rx_dma_enable(struct et131x_adapter *adapter) /* Setup the receive dma configuration register for normal operation */ u32 csr = 0x2000; /* FBR1 enable */ - if (adapter->rx_ring.fbr[1]->buffsize == 4096) + if (adapter->rx_ring.fbr[0]->buffsize == 4096) csr |= 0x0800; - else if (adapter->rx_ring.fbr[1]->buffsize == 8192) + else if (adapter->rx_ring.fbr[0]->buffsize == 8192) csr |= 0x1000; - else if (adapter->rx_ring.fbr[1]->buffsize == 16384) + else if (adapter->rx_ring.fbr[0]->buffsize == 16384) csr |= 0x1800; #ifdef USE_FBR0 csr |= 0x0400; /* FBR0 enable */ - if (adapter->rx_ring.fbr[0]->buffsize == 256) + if (adapter->rx_ring.fbr[1]->buffsize == 256) csr |= 0x0100; - else if (adapter->rx_ring.fbr[0]->buffsize == 512) + else if (adapter->rx_ring.fbr[1]->buffsize == 512) csr |= 0x0200; - else if (adapter->rx_ring.fbr[0]->buffsize == 1024) + else if (adapter->rx_ring.fbr[1]->buffsize == 1024) csr |= 0x0300; #endif writel(csr, &adapter->regs->rxdma.csr); @@ -2737,11 +2741,11 @@ static struct rfd *nic_rx_pkts(struct et131x_adapter *adapter) #ifdef USE_FBR0 if (ring_index > 1 || (ring_index == 0 && - buff_index > rx_local->fbr[0]->num_entries - 1) || + buff_index > rx_local->fbr[1]->num_entries - 1) || (ring_index == 1 && - buff_index > rx_local->fbr[1]->num_entries - 1)) + buff_index > rx_local->fbr[0]->num_entries - 1)) #else - if (ring_index != 1 || buff_index > rx_local->fbr[1]->num_entries - 1) + if (ring_index != 1 || buff_index > rx_local->fbr[0]->num_entries - 1) #endif { /* Illegal buffer or ring index cannot be used by S/W*/ @@ -2800,7 +2804,11 @@ static struct rfd *nic_rx_pkts(struct et131x_adapter *adapter) ET131X_PACKET_TYPE_PROMISCUOUS) && !(adapter->packet_filter & ET131X_PACKET_TYPE_ALL_MULTICAST)) { - buf = rx_local->fbr[ring_index]-> + /* + * Note - ring_index for fbr[] array is reversed + * 1 for FBR0 etc + */ + buf = rx_local->fbr[(ring_index == 0 ? 1 : 0)]-> virt[buff_index]; /* Loop through our list to see if the @@ -2865,8 +2873,12 @@ static struct rfd *nic_rx_pkts(struct et131x_adapter *adapter) adapter->net_stats.rx_bytes += rfd->len; + /* + * Note - ring_index for fbr[] array is reversed, + * 1 for FBR0 etc + */ memcpy(skb_put(skb, rfd->len), - rx_local->fbr[ring_index]->virt[buff_index], + rx_local->fbr[(ring_index == 0 ? 1 : 0)]->virt[buff_index], rfd->len); skb->dev = adapter->netdev; -- 2.39.5