sparc: VIO protocol version 1.6
Add VIO protocol version 1.6 interfaces. Signed-off-by: David L Stevens <david.stevens@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -65,6 +65,7 @@ struct vio_dring_register {
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u16 options;
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#define VIO_TX_DRING 0x0001
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#define VIO_RX_DRING 0x0002
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#define VIO_RX_DRING_DATA 0x0004
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u16 resv;
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u32 num_cookies;
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struct ldc_trans_cookie cookies[0];
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@ -80,6 +81,8 @@ struct vio_dring_unregister {
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#define VIO_PKT_MODE 0x01 /* Packet based transfer */
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#define VIO_DESC_MODE 0x02 /* In-band descriptors */
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#define VIO_DRING_MODE 0x03 /* Descriptor rings */
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/* in vers >= 1.2, VIO_DRING_MODE is 0x04 and transfer mode is a bitmask */
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#define VIO_NEW_DRING_MODE 0x04
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struct vio_dring_data {
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struct vio_msg_tag tag;
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@ -205,10 +208,20 @@ struct vio_net_attr_info {
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u8 addr_type;
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#define VNET_ADDR_ETHERMAC 0x01
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u16 ack_freq;
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u32 resv1;
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u8 plnk_updt;
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#define PHYSLINK_UPDATE_NONE 0x00
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#define PHYSLINK_UPDATE_STATE 0x01
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#define PHYSLINK_UPDATE_STATE_ACK 0x02
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#define PHYSLINK_UPDATE_STATE_NACK 0x03
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u8 options;
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u16 resv1;
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u64 addr;
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u64 mtu;
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u64 resv2[3];
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u16 cflags;
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#define VNET_LSO_IPV4_CAPAB 0x0001
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u16 ipv4_lso_maxlen;
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u32 resv2;
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u64 resv3[2];
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};
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#define VNET_NUM_MCAST 7
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@ -366,6 +379,33 @@ struct vio_driver_state {
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struct vio_driver_ops *ops;
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};
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static inline bool vio_version_before(struct vio_driver_state *vio,
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u16 major, u16 minor)
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{
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u32 have = (u32)vio->ver.major << 16 | vio->ver.minor;
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u32 want = (u32)major << 16 | minor;
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return have < want;
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}
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static inline bool vio_version_after(struct vio_driver_state *vio,
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u16 major, u16 minor)
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{
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u32 have = (u32)vio->ver.major << 16 | vio->ver.minor;
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u32 want = (u32)major << 16 | minor;
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return have > want;
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}
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static inline bool vio_version_after_eq(struct vio_driver_state *vio,
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u16 major, u16 minor)
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{
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u32 have = (u32)vio->ver.major << 16 | vio->ver.minor;
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u32 want = (u32)major << 16 | minor;
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return have >= want;
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}
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#define viodbg(TYPE, f, a...) \
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do { if (vio->debug & VIO_DEBUG_##TYPE) \
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printk(KERN_INFO "vio: ID[%lu] " f, \
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@ -426,6 +426,13 @@ static int process_dreg_info(struct vio_driver_state *vio,
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if (vio->dr_state & VIO_DR_STATE_RXREG)
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goto send_nack;
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/* v1.6 and higher, ACK with desired, supported mode, or NACK */
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if (vio_version_after_eq(vio, 1, 6)) {
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if (!(pkt->options & VIO_TX_DRING))
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goto send_nack;
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pkt->options = VIO_TX_DRING;
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}
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BUG_ON(vio->desc_buf);
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vio->desc_buf = kzalloc(pkt->descr_size, GFP_ATOMIC);
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@ -453,8 +460,11 @@ static int process_dreg_info(struct vio_driver_state *vio,
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pkt->tag.stype = VIO_SUBTYPE_ACK;
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pkt->dring_ident = ++dr->ident;
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viodbg(HS, "SEND DRING_REG ACK ident[%llx]\n",
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(unsigned long long) pkt->dring_ident);
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viodbg(HS, "SEND DRING_REG ACK ident[%llx] "
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"ndesc[%u] dsz[%u] opt[0x%x] ncookies[%u]\n",
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(unsigned long long) pkt->dring_ident,
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pkt->num_descr, pkt->descr_size, pkt->options,
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pkt->num_cookies);
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len = (sizeof(*pkt) +
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(dr->ncookies * sizeof(struct ldc_trans_cookie)));
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