diff options
Diffstat (limited to 'drivers/scsi/cxgbi/libcxgbi.h')
| -rw-r--r-- | drivers/scsi/cxgbi/libcxgbi.h | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h index 84b96af52655..fc7255fefcd3 100644 --- a/drivers/scsi/cxgbi/libcxgbi.h +++ b/drivers/scsi/cxgbi/libcxgbi.h @@ -76,6 +76,14 @@ do { \ #define ULP2_MAX_PDU_PAYLOAD \ (ULP2_MAX_PKT_SIZE - ISCSI_PDU_NONPAYLOAD_LEN) +#define CXGBI_ULP2_MAX_ISO_PAYLOAD 65535 + +#define CXGBI_MAX_ISO_DATA_IN_SKB \ + min_t(u32, MAX_SKB_FRAGS << PAGE_SHIFT, CXGBI_ULP2_MAX_ISO_PAYLOAD) + +#define cxgbi_is_iso_config(csk) ((csk)->cdev->skb_iso_txhdr) +#define cxgbi_is_iso_disabled(csk) ((csk)->disable_iso) + /* * For iscsi connections HW may inserts digest bytes into the pdu. Those digest * bytes are not sent by the host but are part of the TCP payload and therefore @@ -162,6 +170,10 @@ struct cxgbi_sock { u32 write_seq; u32 snd_win; u32 rcv_win; + + bool disable_iso; + u32 no_tx_credits; + unsigned long prev_iso_ts; }; /* @@ -203,6 +215,8 @@ struct cxgbi_skb_tx_cb { void *handle; void *arp_err_handler; struct sk_buff *wr_next; + u16 iscsi_hdr_len; + u8 ulp_mode; }; enum cxgbi_skcb_flags { @@ -218,6 +232,7 @@ enum cxgbi_skcb_flags { SKCBF_RX_HCRC_ERR, /* header digest error */ SKCBF_RX_DCRC_ERR, /* data digest error */ SKCBF_RX_PAD_ERR, /* padding byte error */ + SKCBF_TX_ISO, /* iso cpl in tx skb */ }; struct cxgbi_skb_cb { @@ -225,18 +240,18 @@ struct cxgbi_skb_cb { struct cxgbi_skb_rx_cb rx; struct cxgbi_skb_tx_cb tx; }; - unsigned char ulp_mode; unsigned long flags; unsigned int seq; }; #define CXGBI_SKB_CB(skb) ((struct cxgbi_skb_cb *)&((skb)->cb[0])) #define cxgbi_skcb_flags(skb) (CXGBI_SKB_CB(skb)->flags) -#define cxgbi_skcb_ulp_mode(skb) (CXGBI_SKB_CB(skb)->ulp_mode) #define cxgbi_skcb_tcp_seq(skb) (CXGBI_SKB_CB(skb)->seq) #define cxgbi_skcb_rx_ddigest(skb) (CXGBI_SKB_CB(skb)->rx.ddigest) #define cxgbi_skcb_rx_pdulen(skb) (CXGBI_SKB_CB(skb)->rx.pdulen) #define cxgbi_skcb_tx_wr_next(skb) (CXGBI_SKB_CB(skb)->tx.wr_next) +#define cxgbi_skcb_tx_iscsi_hdrlen(skb) (CXGBI_SKB_CB(skb)->tx.iscsi_hdr_len) +#define cxgbi_skcb_tx_ulp_mode(skb) (CXGBI_SKB_CB(skb)->tx.ulp_mode) static inline void cxgbi_skcb_set_flag(struct sk_buff *skb, enum cxgbi_skcb_flags flag) @@ -458,6 +473,7 @@ struct cxgbi_ports_map { #define CXGBI_FLAG_IPV4_SET 0x10 #define CXGBI_FLAG_USE_PPOD_OFLDQ 0x40 #define CXGBI_FLAG_DDP_OFF 0x100 +#define CXGBI_FLAG_DEV_ISO_OFF 0x400 struct cxgbi_device { struct list_head list_head; @@ -477,6 +493,7 @@ struct cxgbi_device { unsigned int pfvf; unsigned int rx_credit_thres; unsigned int skb_tx_rsvd; + u32 skb_iso_txhdr; unsigned int skb_rx_extra; /* for msg coalesced mode */ unsigned int tx_max_size; unsigned int rx_max_size; @@ -523,20 +540,41 @@ struct cxgbi_endpoint { struct cxgbi_sock *csk; }; -#define MAX_PDU_FRAGS ((ULP2_MAX_PDU_PAYLOAD + 512 - 1) / 512) struct cxgbi_task_data { +#define CXGBI_TASK_SGL_CHECKED 0x1 +#define CXGBI_TASK_SGL_COPY 0x2 + u8 flags; unsigned short nr_frags; - struct page_frag frags[MAX_PDU_FRAGS]; + struct page_frag frags[MAX_SKB_FRAGS]; struct sk_buff *skb; unsigned int dlen; unsigned int offset; unsigned int count; unsigned int sgoffset; + u32 total_count; + u32 total_offset; + u32 max_xmit_dlength; struct cxgbi_task_tag_info ttinfo; }; #define iscsi_task_cxgbi_data(task) \ ((task)->dd_data + sizeof(struct iscsi_tcp_task)) +struct cxgbi_iso_info { +#define CXGBI_ISO_INFO_FSLICE 0x1 +#define CXGBI_ISO_INFO_LSLICE 0x2 +#define CXGBI_ISO_INFO_IMM_ENABLE 0x4 + u8 flags; + u8 op; + u8 ahs; + u8 num_pdu; + u32 mpdu; + u32 burst_size; + u32 len; + u32 segment_offset; + u32 datasn_offset; + u32 buffer_offset; +}; + static inline void *cxgbi_alloc_big_mem(unsigned int size, gfp_t gfp) { |