[PATCH] ethtool.h should use userspace-accessible types

Eric Brower
2004-03-12T01:55:20Z

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Attached is a patch to 2.4's ethtool.h to use appropriate,
userspace-accessible data types (__u8 and friends, rather than u8 and
friends).

I've also posted a patch against ethtool-1.8 to the sf.net gkernel site
that cleans-up ethtool-copy.h and the rest in the same manner.

My motivation for the patch is to allow a userspace program to cleanly
call ethtool ioctls without the typedef'ing used within the ethtool
package.

Please cc me with responses, as I am not subscribed to lkml.

Thanks,
E

[-- Attachment #2: 2.4_ethtool_types.patch --]
[-- Type: text/plain, Size: 12529 bytes --]

===== include/linux/ethtool.h 1.18 vs edited =====
--- 1.18/include/linux/ethtool.h Sun Oct 12 04:18:20 2003
+++ edited/include/linux/ethtool.h Thu Mar 11 14:02:38 2004
@@ -15,24 +15,24 @@

/* This should work for both 32 and 64 bit userland. */
struct ethtool_cmd {
- u32 cmd;
- u32 supported; /* Features this interface supports */
- u32 advertising; /* Features this interface advertises */
- u16 speed; /* The forced speed, 10Mb, 100Mb, gigabit */
- u8 duplex; /* Duplex, half or full */
- u8 port; /* Which connector port */
- u8 phy_address;
- u8 transceiver; /* Which tranceiver to use */
- u8 autoneg; /* Enable or disable autonegotiation */
- u32 maxtxpkt; /* Tx pkts before generating tx int */
- u32 maxrxpkt; /* Rx pkts before generating rx int */
- u32 reserved[4];
+ __u32 cmd;
+ __u32 supported; /* Features this interface supports */
+ __u32 advertising; /* Features this interface advertises */
+ __u16 speed; /* The forced speed, 10Mb, 100Mb, gigabit */
+ __u8 duplex; /* Duplex, half or full */
+ __u8 port; /* Which connector port */
+ __u8 phy_address;
+ __u8 transceiver; /* Which tranceiver to use */
+ __u8 autoneg; /* Enable or disable autonegotiation */
+ __u32 maxtxpkt; /* Tx pkts before generating tx int */
+ __u32 maxrxpkt; /* Rx pkts before generating rx int */
+ __u32 reserved[4];
};

#define ETHTOOL_BUSINFO_LEN 32
/* these strings are set to whatever the driver author decides... */
struct ethtool_drvinfo {
- u32 cmd;
+ __u32 cmd;
char driver[32]; /* driver short name, "tulip", "eepro100" */
char version[32]; /* driver version string */
char fw_version[32]; /* firmware version string, if applicable */
@@ -40,53 +40,53 @@
/* For PCI devices, use pci_dev->slot_name. */
char reserved1[32];
char reserved2[16];
- u32 n_stats; /* number of u64's from ETHTOOL_GSTATS */
- u32 testinfo_len;
- u32 eedump_len; /* Size of data from ETHTOOL_GEEPROM (bytes) */
- u32 regdump_len; /* Size of data from ETHTOOL_GREGS (bytes) */
+ __u32 n_stats; /* number of __u64's from ETHTOOL_GSTATS */
+ __u32 testinfo_len;
+ __u32 eedump_len; /* Size of data from ETHTOOL_GEEPROM (bytes) */
+ __u32 regdump_len; /* Size of data from ETHTOOL_GREGS (bytes) */
};

#define SOPASS_MAX 6
/* wake-on-lan settings */
struct ethtool_wolinfo {
- u32 cmd;
- u32 supported;
- u32 wolopts;
- u8 sopass[SOPASS_MAX]; /* SecureOn(tm) password */
+ __u32 cmd;
+ __u32 supported;
+ __u32 wolopts;
+ __u8 sopass[SOPASS_MAX]; /* SecureOn(tm) password */
};

/* for passing single values */
struct ethtool_value {
- u32 cmd;
- u32 data;
+ __u32 cmd;
+ __u32 data;
};

/* for passing big chunks of data */
struct ethtool_regs {
- u32 cmd;
- u32 version; /* driver-specific, indicates different chips/revs */
- u32 len; /* bytes */
- u8 data[0];
+ __u32 cmd;
+ __u32 version; /* driver-specific, indicates different chips/revs */
+ __u32 len; /* bytes */
+ __u8 data[0];
};

/* for passing EEPROM chunks */
struct ethtool_eeprom {
- u32 cmd;
- u32 magic;
- u32 offset; /* in bytes */
- u32 len; /* in bytes */
- u8 data[0];
+ __u32 cmd;
+ __u32 magic;
+ __u32 offset; /* in bytes */
+ __u32 len; /* in bytes */
+ __u8 data[0];
};

/* for configuring coalescing parameters of chip */
struct ethtool_coalesce {
- u32 cmd; /* ETHTOOL_{G,S}COALESCE */
+ __u32 cmd; /* ETHTOOL_{G,S}COALESCE */

/* How many usecs to delay an RX interrupt after
* a packet arrives. If 0, only rx_max_coalesced_frames
* is used.
*/
- u32 rx_coalesce_usecs;
+ __u32 rx_coalesce_usecs;

/* How many packets to delay an RX interrupt after
* a packet arrives. If 0, only rx_coalesce_usecs is
@@ -94,21 +94,21 @@
* to zero as this would cause RX interrupts to never be
* generated.
*/
- u32 rx_max_coalesced_frames;
+ __u32 rx_max_coalesced_frames;

/* Same as above two parameters, except that these values
* apply while an IRQ is being serviced by the host. Not
* all cards support this feature and the values are ignored
* in that case.
*/
- u32 rx_coalesce_usecs_irq;
- u32 rx_max_coalesced_frames_irq;
+ __u32 rx_coalesce_usecs_irq;
+ __u32 rx_max_coalesced_frames_irq;

/* How many usecs to delay a TX interrupt after
* a packet is sent. If 0, only tx_max_coalesced_frames
* is used.
*/
- u32 tx_coalesce_usecs;
+ __u32 tx_coalesce_usecs;

/* How many packets to delay a TX interrupt after
* a packet is sent. If 0, only tx_coalesce_usecs is
@@ -116,22 +116,22 @@
* to zero as this would cause TX interrupts to never be
* generated.
*/
- u32 tx_max_coalesced_frames;
+ __u32 tx_max_coalesced_frames;

/* Same as above two parameters, except that these values
* apply while an IRQ is being serviced by the host. Not
* all cards support this feature and the values are ignored
* in that case.
*/
- u32 tx_coalesce_usecs_irq;
- u32 tx_max_coalesced_frames_irq;
+ __u32 tx_coalesce_usecs_irq;
+ __u32 tx_max_coalesced_frames_irq;

/* How many usecs to delay in-memory statistics
* block updates. Some drivers do not have an in-memory
* statistic block, and in such cases this value is ignored.
* This value must not be zero.
*/
- u32 stats_block_coalesce_usecs;
+ __u32 stats_block_coalesce_usecs;

/* Adaptive RX/TX coalescing is an algorithm implemented by
* some drivers to improve latency under low packet rates and
@@ -140,18 +140,18 @@
* not implemented by the driver causes these values to be
* silently ignored.
*/
- u32 use_adaptive_rx_coalesce;
- u32 use_adaptive_tx_coalesce;
+ __u32 use_adaptive_rx_coalesce;
+ __u32 use_adaptive_tx_coalesce;

/* When the packet rate (measured in packets per second)
* is below pkt_rate_low, the {rx,tx}_*_low parameters are
* used.
*/
- u32 pkt_rate_low;
- u32 rx_coalesce_usecs_low;
- u32 rx_max_coalesced_frames_low;
- u32 tx_coalesce_usecs_low;
- u32 tx_max_coalesced_frames_low;
+ __u32 pkt_rate_low;
+ __u32 rx_coalesce_usecs_low;
+ __u32 rx_max_coalesced_frames_low;
+ __u32 tx_coalesce_usecs_low;
+ __u32 tx_max_coalesced_frames_low;

/* When the packet rate is below pkt_rate_high but above
* pkt_rate_low (both measured in packets per second) the
@@ -162,43 +162,43 @@
* is above pkt_rate_high, the {rx,tx}_*_high parameters are
* used.
*/
- u32 pkt_rate_high;
- u32 rx_coalesce_usecs_high;
- u32 rx_max_coalesced_frames_high;
- u32 tx_coalesce_usecs_high;
- u32 tx_max_coalesced_frames_high;
+ __u32 pkt_rate_high;
+ __u32 rx_coalesce_usecs_high;
+ __u32 rx_max_coalesced_frames_high;
+ __u32 tx_coalesce_usecs_high;
+ __u32 tx_max_coalesced_frames_high;

/* How often to do adaptive coalescing packet rate sampling,
* measured in seconds. Must not be zero.
*/
- u32 rate_sample_interval;
+ __u32 rate_sample_interval;
};

/* for configuring RX/TX ring parameters */
struct ethtool_ringparam {
- u32 cmd; /* ETHTOOL_{G,S}RINGPARAM */
+ __u32 cmd; /* ETHTOOL_{G,S}RINGPARAM */

/* Read only attributes. These indicate the maximum number
* of pending RX/TX ring entries the driver will allow the
* user to set.
*/
- u32 rx_max_pending;
- u32 rx_mini_max_pending;
- u32 rx_jumbo_max_pending;
- u32 tx_max_pending;
+ __u32 rx_max_pending;
+ __u32 rx_mini_max_pending;
+ __u32 rx_jumbo_max_pending;
+ __u32 tx_max_pending;

/* Values changeable by the user. The valid values are
* in the range 1 to the "*_max_pending" counterpart above.
*/
- u32 rx_pending;
- u32 rx_mini_pending;
- u32 rx_jumbo_pending;
- u32 tx_pending;
+ __u32 rx_pending;
+ __u32 rx_mini_pending;
+ __u32 rx_jumbo_pending;
+ __u32 tx_pending;
};

/* for configuring link flow control parameters */
struct ethtool_pauseparam {
- u32 cmd; /* ETHTOOL_{G,S}PAUSEPARAM */
+ __u32 cmd; /* ETHTOOL_{G,S}PAUSEPARAM */

/* If the link is being auto-negotiated (via ethtool_cmd.autoneg
* being true) the user may set 'autonet' here non-zero to have the
@@ -210,9 +210,9 @@
* then {rx,tx}_pause force the driver to use/not-use pause
* flow control.
*/
- u32 autoneg;
- u32 rx_pause;
- u32 tx_pause;
+ __u32 autoneg;
+ __u32 rx_pause;
+ __u32 tx_pause;
};

#define ETH_GSTRING_LEN 32
@@ -223,10 +223,10 @@

/* for passing string sets for data tagging */
struct ethtool_gstrings {
- u32 cmd; /* ETHTOOL_GSTRINGS */
- u32 string_set; /* string set id e.c. ETH_SS_TEST, etc*/
- u32 len; /* number of strings in the string set */
- u8 data[0];
+ __u32 cmd; /* ETHTOOL_GSTRINGS */
+ __u32 string_set; /* string set id e.c. ETH_SS_TEST, etc*/
+ __u32 len; /* number of strings in the string set */
+ __u8 data[0];
};

enum ethtool_test_flags {
@@ -236,28 +236,28 @@

/* for requesting NIC test and getting results*/
struct ethtool_test {
- u32 cmd; /* ETHTOOL_TEST */
- u32 flags; /* ETH_TEST_FL_xxx */
- u32 reserved;
- u32 len; /* result length, in number of u64 elements */
- u64 data[0];
+ __u32 cmd; /* ETHTOOL_TEST */
+ __u32 flags; /* ETH_TEST_FL_xxx */
+ __u32 reserved;
+ __u32 len; /* result length, in number of __u64 elements */
+ __u64 data[0];
};

/* for dumping NIC-specific statistics */
struct ethtool_stats {
- u32 cmd; /* ETHTOOL_GSTATS */
- u32 n_stats; /* number of u64's being returned */
- u64 data[0];
+ __u32 cmd; /* ETHTOOL_GSTATS */
+ __u32 n_stats; /* number of __u64's being returned */
+ __u64 data[0];
};

struct net_device;

/* Some generic methods drivers may use in their ethtool_ops */
-u32 ethtool_op_get_link(struct net_device *dev);
-u32 ethtool_op_get_tx_csum(struct net_device *dev);
-int ethtool_op_set_tx_csum(struct net_device *dev, u32 data);
-u32 ethtool_op_get_sg(struct net_device *dev);
-int ethtool_op_set_sg(struct net_device *dev, u32 data);
+__u32 ethtool_op_get_link(struct net_device *dev);
+__u32 ethtool_op_get_tx_csum(struct net_device *dev);
+int ethtool_op_set_tx_csum(struct net_device *dev, __u32 data);
+__u32 ethtool_op_get_sg(struct net_device *dev);
+int ethtool_op_set_sg(struct net_device *dev, __u32 data);

/**
* &ethtool_ops - Alter and report network device settings
@@ -320,31 +320,31 @@
void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
void (*get_wol)(struct net_device *, struct ethtool_wolinfo *);
int (*set_wol)(struct net_device *, struct ethtool_wolinfo *);
- u32 (*get_msglevel)(struct net_device *);
- void (*set_msglevel)(struct net_device *, u32);
+ __u32 (*get_msglevel)(struct net_device *);
+ void (*set_msglevel)(struct net_device *, __u32);
int (*nway_reset)(struct net_device *);
- u32 (*get_link)(struct net_device *);
+ __u32 (*get_link)(struct net_device *);
int (*get_eeprom_len)(struct net_device *);
- int (*get_eeprom)(struct net_device *, struct ethtool_eeprom *, u8 *);
- int (*set_eeprom)(struct net_device *, struct ethtool_eeprom *, u8 *);
+ int (*get_eeprom)(struct net_device *, struct ethtool_eeprom *, __u8 *);
+ int (*set_eeprom)(struct net_device *, struct ethtool_eeprom *, __u8 *);
int (*get_coalesce)(struct net_device *, struct ethtool_coalesce *);
int (*set_coalesce)(struct net_device *, struct ethtool_coalesce *);
void (*get_ringparam)(struct net_device *, struct ethtool_ringparam *);
int (*set_ringparam)(struct net_device *, struct ethtool_ringparam *);
void (*get_pauseparam)(struct net_device *, struct ethtool_pauseparam*);
int (*set_pauseparam)(struct net_device *, struct ethtool_pauseparam*);
- u32 (*get_rx_csum)(struct net_device *);
- int (*set_rx_csum)(struct net_device *, u32);
- u32 (*get_tx_csum)(struct net_device *);
- int (*set_tx_csum)(struct net_device *, u32);
- u32 (*get_sg)(struct net_device *);
- int (*set_sg)(struct net_device *, u32);
+ __u32 (*get_rx_csum)(struct net_device *);
+ int (*set_rx_csum)(struct net_device *, __u32);
+ __u32 (*get_tx_csum)(struct net_device *);
+ int (*set_tx_csum)(struct net_device *, __u32);
+ __u32 (*get_sg)(struct net_device *);
+ int (*set_sg)(struct net_device *, __u32);
int (*self_test_count)(struct net_device *);
- void (*self_test)(struct net_device *, struct ethtool_test *, u64 *);
- void (*get_strings)(struct net_device *, u32 stringset, u8 *);
- int (*phys_id)(struct net_device *, u32);
+ void (*self_test)(struct net_device *, struct ethtool_test *, __u64 *);
+ void (*get_strings)(struct net_device *, __u32 stringset, __u8 *);
+ int (*phys_id)(struct net_device *, __u32);
int (*get_stats_count)(struct net_device *);
- void (*get_ethtool_stats)(struct net_device *, struct ethtool_stats *, u64 *);
+ void (*get_ethtool_stats)(struct net_device *, struct ethtool_stats *, __u64 *);
};

/* CMDs currently supported */