qla29xx_buil..._crc_2_iocbs(9)

💅 qla29xx_build_scsi_crc_2_iocbs(9) — Kernel API Manual ✨

okay so bestie, this is a page from the Kernel API Manual, and the function we're stanning today is qla29xx_build_scsi_crc_2_iocbs. She lives in the kernel, she builds IOCBs, and she's about to make your whole extended-ring situation make sense. let's go 🎀

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🌸 NAME 🌸

qla29xx_build_scsi_crc_2_iocbs — builds an IOCB command, specifically the kind that utilizes Command Type CRC_2 IOCB types on the 29xx extended ring. no cap, that's literally her whole job 💅

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🦋 SYNOPSIS 🦋

int qla29xx_build_scsi_crc_2_iocbs (srb_t *sp , struct
       cmd_type_crc_2_ext *cmd_pkt , uint16_t tot_dsds , uint16_t tot_prot_dsds
       , uint16_t fw_prot_opts );

she returns an int, and she takes five (5) whole arguments. yes, five. we'll get to all of them, don't worry 🫶

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✨ ARGUMENTS ✨

• sp — the SRB command that needs processing. this is the main character of the operation, honestly 👑
• cmd_pkt — the Command type CRC_2 extended IOCB. yup, it's a struct cmd_type_crc_2_ext * and it's doing exactly what it says on the tin.
• tot_dsds — total number of segments to transfer. the whole headcount, uint16_t style.
• tot_prot_dsds — total number of segments with protection information. so like, the segments that brought their protection info to the party 🛡️
• fw_prot_opts — protection options that get passed to the firmware. firmware's getting the tea, fr fr ☕

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💜 DESCRIPTION 💜

Returns 0 if successful, 1 otherwise.

that's it. that's the description. she's direct, she's efficient, she ate and left no crumbs 💀✨

ngl bestie, always check that return value — 0 is the slay outcome, 1 means something did not go the way we wanted 🙈

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🔥 SEE ALSO 🔥

the whole squad, in no particular order but also in exactly this order:

• Kernel file ./drivers/scsi/qla2xxx/qla_iocb.c — that's the home address, go visit 🏠
• qla2x00_get_cmd_direction(9)
• qla2x00_calc_iocbs_32(9)
• qla2x00_calc_iocbs_64(9)
• qla2x00_prep_cont_type0_iocb(9)
• qla2x00_prep_cont_type1_iocb(9)
• qla2x00_build_scsi_iocbs_64(9)
• qla2x00_start_scsi(9)
• qla2x00_start_iocbs(9)
• __qla2x00_marker(9) — yes she starts with a double underscore, she's built different 🫡
• qla24xx_build_scsi_iocbs(9)
• qla24xx_build_scsi_crc_2_iocbs(9)
• qla24xx_start_scsi(9)
• qla24xx_dif_start_scsi(9)
• qla2xxx_start_scsi_mq(9)
• qla2xxx_dif_start_scsi_mq(9)
• qla_start_scsi_type6(9)
• qla2900_prep_cont_type1_iocb(9)
• qla29xx_build_scsi_type_6_iocbs(9)
• qla29xx_build_scsi_iocbs(9)
• qla29xx_copy_dif_iocb_data(9)

that's twenty (20) related functions, and yes, reading them all is the vibe check you didn't know you needed 🌈💖

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okay that's the whole page!! written down, nothing skipped, all facts intact, zero crumbs left 🍓

kisses!! she's documented from ./drivers/scsi/qla2xxx, dated October 2026, and the manual name is qla29xx_buil..._crc_2_iocbs(9) — go forth and build those CRC_2 IOCBs, bestie, iykyk 🧚💜🎀