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Date: Fri, 1 Dec 2006 01:02:04 +0100
From: Francois Romieu <romieu@...zoreil.com>
To: Don Fry <brazilnut@...ibm.com>
Cc: netdev@...r.kernel.org, amitkale@...xen.com, jeff@...zik.org,
netxenproj@...syssoft.com, rob@...xen.com, sanjeev@...xen.com,
wendyx@...ibm.com
Subject: Re: [PATCH 2/5] NetXen: temp monitoring, newer firmware support, mm footprint reduction
Don Fry <brazilnut@...ibm.com> :
> NetXen: 1G/10G Ethernet Driver updates
> - Temparature monitoring and device control
> - Memory footprint reduction
> - Driver changes to support newer version of firmware
>
> Signed-off-by: Amit S. Kale <amitkale@...xen.com>
> Signed-off-by: Don Fry <brazilnut@...ibm.com>
>
> diff -Nupr netdev-2.6/drivers/net/netxen.one/netxen_nic_ethtool.c netdev-2.6/drivers/net/netxen/netxen_nic_ethtool.c
> --- netdev-2.6/drivers/net/netxen.one/netxen_nic_ethtool.c 2006-11-30 09:16:23.000000000 -0800
> +++ netdev-2.6/drivers/net/netxen/netxen_nic_ethtool.c 2006-11-30 09:22:41.000000000 -0800
> @@ -53,6 +53,9 @@ struct netxen_nic_stats {
> #define NETXEN_NIC_STAT(m) sizeof(((struct netxen_port *)0)->m), \
> offsetof(struct netxen_port, m)
>
> +#define NETXEN_NIC_PORT_WINDOW 0x10000
> +#define NETXEN_NIC_INVALID_DATA 0xDEADBEEF
> +
> static const struct netxen_nic_stats netxen_nic_gstrings_stats[] = {
> {"rcvd_bad_skb", NETXEN_NIC_STAT(stats.rcvdbadskb)},
> {"xmit_called", NETXEN_NIC_STAT(stats.xmitcalled)},
> @@ -111,9 +114,9 @@ netxen_nic_get_drvinfo(struct net_device
> {
> struct netxen_port *port = netdev_priv(dev);
> struct netxen_adapter *adapter = port->adapter;
> - uint32_t fw_major = 0;
> - uint32_t fw_minor = 0;
> - uint32_t fw_build = 0;
> + u32 fw_major = 0;
> + u32 fw_minor = 0;
> + u32 fw_build = 0;
The description of the patch did not announce (welcome) cleanup.
There are a few ones.
[...]
> strncpy(drvinfo->driver, "netxen_nic", 32);
> strncpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID, 32);
> @@ -136,6 +139,8 @@ netxen_nic_get_settings(struct net_devic
> {
> struct netxen_port *port = netdev_priv(dev);
> struct netxen_adapter *adapter = port->adapter;
> + struct netxen_board_info *boardinfo;
> + boardinfo = &adapter->ahw.boardcfg;
Missing separating line or merge the two lines.
[...]
> @@ -182,13 +174,47 @@ netxen_nic_get_settings(struct net_devic
>
> ecmd->speed = SPEED_10000;
> ecmd->duplex = DUPLEX_FULL;
> - ecmd->phy_address = port->portnum;
> - ecmd->transceiver = XCVR_EXTERNAL;
> ecmd->autoneg = AUTONEG_DISABLE;
> - return 0;
> + } else
> + return -EIO;
> +
> + ecmd->phy_address = port->portnum;
> + ecmd->transceiver = XCVR_EXTERNAL;
> +
> + switch ((netxen_brdtype_t) boardinfo->board_type) {
> + case NETXEN_BRDTYPE_P2_SB35_4G:
> + case NETXEN_BRDTYPE_P2_SB31_2G:
> + ecmd->supported |= SUPPORTED_Autoneg;
> + ecmd->advertising |= ADVERTISED_Autoneg;
> + case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
> + ecmd->supported |= SUPPORTED_TP;
> + ecmd->advertising |= ADVERTISED_TP;
> + ecmd->port = PORT_TP;
> + ecmd->autoneg = (boardinfo->board_type ==
> + NETXEN_BRDTYPE_P2_SB31_10G_CX4) ?
> + (AUTONEG_DISABLE) : (port->link_autoneg);
> + break;
> + case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
> + case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
> + ecmd->supported |= SUPPORTED_MII;
> + ecmd->advertising |= ADVERTISED_MII;
> + ecmd->port = PORT_FIBRE;
> + ecmd->autoneg = AUTONEG_DISABLE;
> + break;
> + case NETXEN_BRDTYPE_P2_SB31_10G:
> + ecmd->supported |= SUPPORTED_FIBRE;
> + ecmd->advertising |= ADVERTISED_FIBRE;
> + ecmd->port = PORT_FIBRE;
> + ecmd->autoneg = AUTONEG_DISABLE;
> + break;
> + default:
> + printk("ERROR: Unsupported board model %d\n",
> + (netxen_brdtype_t) boardinfo->board_type);
Missing KERN_ERR
[...]
> diff -Nupr netdev-2.6/drivers/net/netxen.one/netxen_nic.h netdev-2.6/drivers/net/netxen/netxen_nic.h
> --- netdev-2.6/drivers/net/netxen.one/netxen_nic.h 2006-11-30 09:16:23.000000000 -0800
> +++ netdev-2.6/drivers/net/netxen/netxen_nic.h 2006-11-30 09:22:41.000000000 -0800
[...]
> @@ -328,6 +343,7 @@ typedef enum {
> NETXEN_BRDTYPE_P2_SB31_10G_HMEZ = 0x000e,
> NETXEN_BRDTYPE_P2_SB31_10G_CX4 = 0x000f
> } netxen_brdtype_t;
> +#define NUM_SUPPORTED_BOARDS (sizeof(netxen_boards)/sizeof(netxen_brdinfo_t))
>
> typedef enum {
> NETXEN_BRDMFG_INVENTEC = 1
[...]
> @@ -869,7 +937,10 @@ static inline void netxen_nic_disable_in
> /*
> * ISR_INT_MASK: Can be read from window 0 or 1.
> */
> - writel(0x7ff, (void __iomem *)(adapter->ahw.pci_base + ISR_INT_MASK));
> + writel(0x7ff,
> + (void __iomem
> + *)(PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)));
> +
Yuck.
[...]
> @@ -888,13 +959,83 @@ static inline void netxen_nic_enable_int
> break;
> }
>
> - writel(mask, (void __iomem *)(adapter->ahw.pci_base + ISR_INT_MASK));
> + writel(mask,
> + (void __iomem
> + *)(PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)));
>
> if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
> mask = 0xbff;
> writel(mask, (void __iomem *)
> - (adapter->ahw.pci_base + ISR_INT_TARGET_MASK));
> + (PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_MASK)));
> + }
> +}
> +
> +/*
> + * NetXen Board information
> + */
> +
> +#define NETXEN_MAX_SHORT_NAME 16
> +typedef struct {
> + netxen_brdtype_t brdtype; /* type of board */
> + long ports; /* max no of physical ports */
> + char short_name[NETXEN_MAX_SHORT_NAME];
> +} netxen_brdinfo_t;
typedef
> +
> +static const netxen_brdinfo_t netxen_boards[] = {
> + {NETXEN_BRDTYPE_P2_SB31_10G_CX4, 1, "XGb CX4"},
> + {NETXEN_BRDTYPE_P2_SB31_10G_HMEZ, 1, "XGb HMEZ"},
> + {NETXEN_BRDTYPE_P2_SB31_10G_IMEZ, 2, "XGb IMEZ"},
> + {NETXEN_BRDTYPE_P2_SB31_10G, 1, "XGb XFP"},
> + {NETXEN_BRDTYPE_P2_SB35_4G, 4, "Quad Gb"},
> + {NETXEN_BRDTYPE_P2_SB31_2G, 2, "Dual Gb"},
> +};
> +
> +#define NUM_SUPPORTED_BOARDS (sizeof(netxen_boards)/sizeof(netxen_brdinfo_t))
Already defined. See @@ -328,6 +343,7 @@ typedef enum {
> +
> +static inline void get_brd_ports_name_by_type(u32 type, int *ports, char *name)
> +{
> + int i, found = 0;
> + for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
> + if (netxen_boards[i].brdtype == type) {
> + *ports = netxen_boards[i].ports;
> + strcpy(name, netxen_boards[i].short_name);
> + found = 1;
> + break;
> + }
> + }
> + if (!found) {
> + *ports = 0;
> + name = "Unknown";
> + }
> +}
- 'i' and 'found' carry the same information.
- this function does not seem to be used anywhere.
- avoid inline
[...]
> diff -Nupr netdev-2.6/drivers/net/netxen.one/netxen_nic_hw.c netdev-2.6/drivers/net/netxen/netxen_nic_hw.c
> --- netdev-2.6/drivers/net/netxen.one/netxen_nic_hw.c 2006-11-30 09:16:23.000000000 -0800
> +++ netdev-2.6/drivers/net/netxen/netxen_nic_hw.c 2006-11-30 09:22:41.000000000 -0800
[...]
> @@ -214,25 +225,34 @@ int netxen_nic_hw_resources(struct netxe
> }
> DPRINTK(INFO, "Recieve Peg ready too. starting stuff\n");
>
> - addr = pci_alloc_consistent(adapter->ahw.pdev,
> - sizeof(struct cmd_desc_type0) *
> - adapter->max_tx_desc_count,
> - &hw->cmd_desc_phys_addr);
> + addr = netxen_alloc(adapter->ahw.pdev,
> + sizeof(struct cmd_desc_type0) *
> + adapter->max_tx_desc_count,
> + &hw->cmd_desc_phys_addr, &hw->cmd_desc_pdev);
> +
> if (addr == NULL) {
> DPRINTK(ERR, "bad return from pci_alloc_consistent\n");
> - err = -ENOMEM;
> - return err;
> + return -ENOMEM;
> }
>
> - /* we need to prelink all of the cmd descriptors */
> - pcmd = (struct cmd_desc_type0 *)addr;
> - for (i = 1; i < adapter->max_tx_desc_count; i++) {
> - pcmd->netxen_next =
> - (card_cmdring + i * sizeof(struct cmd_desc_type0));
> - pcmd++;
> + pause_addr = netxen_alloc(adapter->ahw.pdev, 512,
> + (dma_addr_t *) & hw->pause_physaddr,
> + &hw->pause_pdev);
> + if (pause_addr == NULL) {
> + DPRINTK(1, ERR, "bad return from pci_alloc_consistent\n");
> + return -ENOMEM;
"addr" leak (whatever is done outside of the function, hw->cmd_desc_phys_addr
is set but hw->cmd_desc_head is not).
> + }
> +
> + hw->pauseaddr = (char *)pause_addr;
Cast from void *
[...]
> @@ -254,10 +275,11 @@ int netxen_nic_hw_resources(struct netxe
> rcv_desc->desc_head = (struct rcv_desc *)addr;
> }
>
> - addr = pci_alloc_consistent(adapter->ahw.pdev,
> - STATUS_DESC_RINGSIZE,
> - &recv_ctx->
> - rcv_status_desc_phys_addr);
> + addr = netxen_alloc(adapter->ahw.pdev,
> + STATUS_DESC_RINGSIZE,
> + &recv_ctx->
> + rcv_status_desc_phys_addr,
> + &recv_ctx->rcv_status_desc_pdev);
Yuck
[...]
> @@ -629,7 +675,7 @@ void netxen_nic_write_w0(struct netxen_a
> void __iomem *addr;
>
> netxen_nic_pci_change_crbwindow(adapter, 0);
> - addr = (void __iomem *)(adapter->ahw.pci_base + index);
> + addr = (void __iomem *)(pci_base_offset(adapter, index));
> writel(value, addr);
> netxen_nic_pci_change_crbwindow(adapter, 1);
> }
> @@ -639,7 +685,7 @@ void netxen_nic_read_w0(struct netxen_ad
> {
> void __iomem *addr;
>
> - addr = (void __iomem *)(adapter->ahw.pci_base + index);
> + addr = (void __iomem *)(pci_base_offset(adapter, index));
Useless cast: pci_base_offset() returns (void __iomem *).
--
Ueimor
-
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