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Date: Thu, 23 Oct 2008 09:53:27 -0700
From: Dhananjay Phadke <dhananjay@...xen.com>
To: Harvey Harrison <harvey.harrison@...il.com>
CC: Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] netxen: somewhat ugly endian annotations
All 1-3 look good, I will look to cleanup more stuff in next patch set.
Thank you for fixing this.
-Dhananjay
Harvey Harrison wrote:
> This gets nearly through all of the endianness sparse warnings.
> It would be a good idea to systematically go through the remaining
> structs and annotate their endianness if needed.
>
> Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
> ---
> drivers/net/netxen/netxen_nic.h | 36 +++++++++++++++++-----------------
> drivers/net/netxen/netxen_nic_ctx.c | 18 +++++++---------
> drivers/net/netxen/netxen_nic_hw.c | 14 +++++++-----
> 3 files changed, 34 insertions(+), 34 deletions(-)
>
> diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
> index 0947514..a55e929 100644
> --- a/drivers/net/netxen/netxen_nic.h
> +++ b/drivers/net/netxen/netxen_nic.h
> @@ -1014,8 +1014,8 @@ typedef struct {
> __le32 host_int_crb_mode; /* Interrupt crb usage */
> __le32 host_rds_crb_mode; /* RDS crb usage */
> /* These ring offsets are relative to data[0] below */
> - u32 rds_ring_offset; /* Offset to RDS config */
> - u32 sds_ring_offset; /* Offset to SDS config */
> + __le32 rds_ring_offset; /* Offset to RDS config */
> + __le32 sds_ring_offset; /* Offset to SDS config */
> __le16 num_rds_rings; /* Count of RDS rings */
> __le16 num_sds_rings; /* Count of SDS rings */
> u16 rsvd1; /* Padding */
> @@ -1029,24 +1029,24 @@ typedef struct {
> } nx_hostrq_rx_ctx_t;
>
> typedef struct {
> - u32 host_producer_crb; /* Crb to use */
> + __le32 host_producer_crb; /* Crb to use */
> u32 rsvd1; /* Padding */
> } nx_cardrsp_rds_ring_t;
>
> typedef struct {
> - u32 host_consumer_crb; /* Crb to use */
> - u32 interrupt_crb; /* Crb to use */
> + __le32 host_consumer_crb; /* Crb to use */
> + __le32 interrupt_crb; /* Crb to use */
> } nx_cardrsp_sds_ring_t;
>
> typedef struct {
> /* These ring offsets are relative to data[0] below */
> u32 rds_ring_offset; /* Offset to RDS config */
> u32 sds_ring_offset; /* Offset to SDS config */
> - u32 host_ctx_state; /* Starting State */
> + __le32 host_ctx_state; /* Starting State */
> u32 num_fn_per_port; /* How many PCI fn share the port */
> - u16 num_rds_rings; /* Count of RDS rings */
> + __le16 num_rds_rings; /* Count of RDS rings */
> u16 num_sds_rings; /* Count of SDS rings */
> - u16 context_id; /* Handle for context */
> + __le16 context_id; /* Handle for context */
> u8 phys_port; /* Physical id of port */
> u8 virt_port; /* Virtual/Logical id of port */
> u8 reserved[128]; /* save space for future expansion */
> @@ -1072,17 +1072,17 @@ typedef struct {
> */
>
> typedef struct {
> - u64 host_phys_addr; /* Ring base addr */
> - u32 ring_size; /* Ring entries */
> + __le64 host_phys_addr; /* Ring base addr */
> + __le32 ring_size; /* Ring entries */
> u32 rsvd; /* Padding */
> } nx_hostrq_cds_ring_t;
>
> typedef struct {
> - u64 host_rsp_dma_addr; /* Response dma'd here */
> - u64 cmd_cons_dma_addr; /* */
> - u64 dummy_dma_addr; /* */
> - u32 capabilities[4]; /* Flag bit vector */
> - u32 host_int_crb_mode; /* Interrupt crb usage */
> + __le64 host_rsp_dma_addr; /* Response dma'd here */
> + __le64 cmd_cons_dma_addr; /* */
> + __le64 dummy_dma_addr; /* */
> + __le32 capabilities[4]; /* Flag bit vector */
> + __le32 host_int_crb_mode; /* Interrupt crb usage */
> u32 rsvd1; /* Padding */
> u16 rsvd2; /* Padding */
> u16 interrupt_ctl;
> @@ -1093,13 +1093,13 @@ typedef struct {
> } nx_hostrq_tx_ctx_t;
>
> typedef struct {
> - u32 host_producer_crb; /* Crb to use */
> + __le32 host_producer_crb; /* Crb to use */
> u32 interrupt_crb; /* Crb to use */
> } nx_cardrsp_cds_ring_t;
>
> typedef struct {
> u32 host_ctx_state; /* Starting state */
> - u16 context_id; /* Handle for context */
> + __le16 context_id; /* Handle for context */
> u8 phys_port; /* Physical id of port */
> u8 virt_port; /* Virtual/Logical id of port */
> nx_cardrsp_cds_ring_t cds_ring; /* Card cds settings */
> @@ -1204,7 +1204,7 @@ enum {
> typedef struct {
> u64 qhdr;
> u64 req_hdr;
> - u64 words[6];
> + __le64 words[6];
> } nx_nic_req_t;
>
> typedef struct {
> diff --git a/drivers/net/netxen/netxen_nic_ctx.c b/drivers/net/netxen/netxen_nic_ctx.c
> index dd1b653..e0aa957 100644
> --- a/drivers/net/netxen/netxen_nic_ctx.c
> +++ b/drivers/net/netxen/netxen_nic_ctx.c
> @@ -186,6 +186,7 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
> int i, nrds_rings, nsds_rings;
> size_t rq_size, rsp_size;
> u32 cap, reg;
> + u32 rds_offset, sds_offset;
>
> int err;
>
> @@ -227,11 +228,12 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
>
> prq->num_rds_rings = cpu_to_le16(nrds_rings);
> prq->num_sds_rings = cpu_to_le16(nsds_rings);
> - prq->rds_ring_offset = 0;
> - prq->sds_ring_offset = prq->rds_ring_offset +
> - (sizeof(nx_hostrq_rds_ring_t) * nrds_rings);
> + rds_offset = 0;
> + sds_offset = rds_offset + (sizeof(nx_hostrq_rds_ring_t) * nrds_rings);
> + prq->rds_ring_offset = cpu_to_le32(rds_offset);
> + prq->sds_ring_offset = cpu_to_le32(sds_offset);
>
> - prq_rds = (nx_hostrq_rds_ring_t *)(prq->data + prq->rds_ring_offset);
> + prq_rds = (nx_hostrq_rds_ring_t *)(prq->data + rds_offset);
>
> for (i = 0; i < nrds_rings; i++) {
>
> @@ -243,7 +245,7 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
> prq_rds[i].buff_size = cpu_to_le64(rds_ring->dma_size);
> }
>
> - prq_sds = (nx_hostrq_sds_ring_t *)(prq->data + prq->sds_ring_offset);
> + prq_sds = (nx_hostrq_sds_ring_t *)(prq->data + sds_offset);
>
> prq_sds[0].host_phys_addr =
> cpu_to_le64(recv_ctx->rcv_status_desc_phys_addr);
> @@ -251,10 +253,6 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
> /* only one msix vector for now */
> prq_sds[0].msi_index = cpu_to_le16(0);
>
> - /* now byteswap offsets */
> - prq->rds_ring_offset = cpu_to_le32(prq->rds_ring_offset);
> - prq->sds_ring_offset = cpu_to_le32(prq->sds_ring_offset);
> -
> phys_addr = hostrq_phys_addr;
> err = netxen_issue_cmd(adapter,
> adapter->ahw.pci_func,
> @@ -273,7 +271,7 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
> prsp_rds = ((nx_cardrsp_rds_ring_t *)
> &prsp->data[prsp->rds_ring_offset]);
>
> - for (i = 0; i < le32_to_cpu(prsp->num_rds_rings); i++) {
> + for (i = 0; i < le16_to_cpu(prsp->num_rds_rings); i++) {
> rds_ring = &recv_ctx->rds_rings[i];
>
> reg = le32_to_cpu(prsp_rds[i].host_producer_crb);
> diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
> index fcba06d..11c8b9e 100644
> --- a/drivers/net/netxen/netxen_nic_hw.c
> +++ b/drivers/net/netxen/netxen_nic_hw.c
> @@ -763,17 +763,19 @@ int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, __le64 *mac)
>
> int netxen_p3_get_mac_addr(struct netxen_adapter *adapter, __le64 *mac)
> {
> - uint32_t crbaddr, mac_hi, mac_lo;
> + u32 crbaddr;
> + __le32 raw_mac_hi, raw_mac_lo;
> + u32 mac_hi, mac_lo;
> int pci_func = adapter->ahw.pci_func;
>
> crbaddr = CRB_MAC_BLOCK_START +
> (4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
>
> - adapter->hw_read_wx(adapter, crbaddr, &mac_lo, 4);
> - adapter->hw_read_wx(adapter, crbaddr+4, &mac_hi, 4);
> + adapter->hw_read_wx(adapter, crbaddr, &raw_mac_lo, 4);
> + adapter->hw_read_wx(adapter, crbaddr+4, &raw_mac_hi, 4);
>
> - mac_hi = cpu_to_le32(mac_hi);
> - mac_lo = cpu_to_le32(mac_lo);
> + mac_hi = le32_to_cpu(raw_mac_hi);
> + mac_lo = le32_to_cpu(raw_mac_lo);
>
> if (pci_func & 1)
> *mac = ((mac_lo >> 16) | ((u64)mac_hi << 16));
> @@ -1459,7 +1461,7 @@ static int netxen_nic_pci_mem_read_direct(struct netxen_adapter *adapter,
> mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
> else
> mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
> - if (mem_ptr == 0UL) {
> + if (!mem_ptr) {
> *(uint8_t *)data = 0;
> return -1;
> }
> --
> 1.6.0.3.723.g757e
>
>
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