t4vf_fl_pkt_align(9)
π t4vf_fl_pkt_align π
okay bestie, welcome to the Kernel API Manual, section 9 β yes we're in the deep kernel-lore part of the group chat today, and honestly? this one's a little chaotic. buckle up π
β¨ NAME β¨
t4vf_fl_pkt_align β the function that returns the fl packet alignment. that's it. that's the whole vibe check. π¦
πΈ SYNOPSIS πΈ
int t4vf_fl_pkt_align (struct adapter *adapter );
like, one function, one argument, no drama (the adapter has some drama, but that's between us) π
π«Ά ARGUMENTS π«Ά
adapterβ the adapter. that's your whole param list, icon, no notes. π
π§ DESCRIPTION π§
okay so here's the lore, and it's giving "hardware family tree that nobody asked for" π
T4 has a single field to specify the packing and padding boundary. one field. one single solitary field. iconic minimalist behavior honestly. β
but then T5 onwards has separate fields for this β so the alignment for next packet offset is the maximum of these two. two fields, one answer, lowkey math. π₯
and then T6 shows up and changes the Ingress Padding Boundary Shift, so at this point it's all a mess π and the manpage itself says it's best if we put this in low-level Common Code ... and like, yeah. yeah it is. respect the mess. π
no cap, the original literally calls it "a mess" and honestly that's the most honest kernel documentation has ever been. π
π SEE ALSO π
bestie here's the whole extended friend group, iykyk π
Kernel file ./drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
t4vf_record_mbox(9)t4vf_wr_mbox_core(9)fwcaps16_to_caps32(9)fwcap_to_fwspeed(9)t4vf_port_init(9)t4vf_fw_reset(9)t4vf_query_params(9)t4vf_set_params(9)t4vf_bar2_sge_qregs(9)t4vf_get_sge_params(9)t4vf_get_vpd_params(9)t4vf_get_dev_params(9)t4vf_get_rss_glb_config(9)t4vf_get_vfres(9)t4vf_read_rss_vi_config(9)t4vf_write_rss_vi_config(9)t4vf_config_rss_range(9)t4vf_alloc_vi(9)t4vf_free_vi(9)t4vf_enable_vi(9)t4vf_enable_pi(9)t4vf_identify_port(9)t4vf_set_rxmode(9)t4vf_alloc_mac_filt(9)t4vf_free_mac_filt(9)t4vf_change_mac(9)t4vf_set_addr_hash(9)t4vf_get_port_stats(9)t4vf_iq_free(9)t4vf_eth_eq_free(9)t4vf_link_down_rc_str(9)t4vf_handle_get_port_info(9)t4vf_update_port_info(9)t4vf_handle_fw_rpl(9)t4vf_get_vf_mac_acl(9)t4vf_get_vf_vlan_acl(9)
that's 36 little guys plus the source file. a whole squad. slay. π
okay and for the cute sign-off moment: this page lives at ./drivers/net/ethernet/chelsio... (source/version biz π) and it's dated October 2026 β so mark your calendars bestie, this manpage is from the future and it's still explaining T4/T5/T6 padding boundaries. periodt. πβ¨
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms