STRUCT FC_DISC(9)

💖 NAME 💖

Okay bestie, meet struct fc_disc — the Discovery context. This page is struct fc_disc(9) from the Kernel API Manual, and it is, lowkey, the whole discovery-context vibe. No cap. ✨

🌸 SYNOPSIS 🌸

Here's the struct, exactly as it is — do not come for the spacing, it's iconic:

       struct fc_disc {
           unsigned char         retry_count;
           unsigned char         pending;
           unsigned char         requested;
           unsigned short        seq_count;
           unsigned char         buf_len;
           u16 disc_id;
           struct list_head      rports;
           void *priv;
           struct mutex          disc_mutex;
           struct fc_gpn_ft_resp partial_buf;
           struct delayed_work   disc_work;
           void (*disc_callback)(struct fc_lport *, enum fc_disc_event);
        };

🫶 Members 🫶

The tea on every member, one by one:

• retry_count — the number of retries. That's it, bestie. 🔁
• pending — 1 if discovery is pending, 0 if it's not. Simple queen behavior. 💅
• requested — 1 if discovery has been requested, 0 if not. Noted. ✨
• seq_count — the number of sequences used for discovery. Count them, periodt. 🔢
• buf_len — the length of the discovery buffer. Buffer length tea. 🫶
• disc_id — the discovery ID. Iconic little identifier. 🎀
• rports — the list of discovered remote ports. Obsessed with this list, ngl. 🌸
• priv — a private pointer for use by discovery code. Private means private, bestie. 🙈
• disc_mutex — the mutex that protects the discovery context. Protect the context at all costs. 🔒
• partial_buf — the partial name buffer, specifically if names are returned in multiple frames. Yes, that exact caveat. 🦋
• disc_work — the handle for delayed work context. Delayed but never late. ⏳
• disc_callback — the callback routine called when discovery completes. Main character callback energy, fr fr. 🔥

🌈 SEE ALSO 🌈

The page also shouts out the Kernel file ./include/scsi/libfc.h and these SEE ALSO besties:

• enum fc_lport_state(9)
• enum fc_rport_state(9)
• struct fc_disc_port(9)
• enum fc_rport_event(9)
• struct fc_rport_operations(9)
• struct fc_rport_libfc_priv(9)
• struct fc_rport_priv(9)
• struct fc_stats(9)
• struct fc_seq_els_data(9)
• struct fc_fcp_pkt(9)
• struct fc_seq(9)
• struct fc_exch(9)
• struct fc_lport(9)
• struct fc4_prov(9)
• fc_lport_test_ready(9)
• fc_set_wwnn(9)
• fc_set_wwpn(9)
• fc_lport_state_enter(9)
• fc_lport_init_stats(9)
• fc_lport_free_stats(9)
• lport_priv(9)
• libfc_host_alloc(9)

Footer tea, since we're not copying the line: source/path ./include/scsi, date October 2026, page struct fc_disc(9). Byeee, go slay your discovery context 💅🫶✨